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Journal articles on the topic 'Communication radar à double fonction'

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Author: Grafiati
Published: 25 May 2024

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1

Klaniczay, Gábor, Ildikó Kristóf, and Marie-Pierre Gaviano. "Écritures saintes et pactes diaboliques: Les usages religieux de l’écrit (Moyen Âge et Temps modernes)." Annales. Histoire, Sciences Sociales 56, no. 4-5 (October 2001): 947–80. http://dx.doi.org/10.3406/ahess.2001.279996.

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RésuméReligion du Livre, le christianisme présente maintes situations quotidiennes, sacramentelles ou imaginaires où l’écrit s’investit et rayonne de sacralité. Il s’agit ici d’examiner, dans le champ de la chrétienté européenne et les milieux des clercs lettrés, les formes d’usage sacré du livre et de l’écrit, hermétisme et rites magiques inclus. Deux questions guident l’exploration du double caractère (sacramentel-saint/magique-diabolique) attribué à l’écrit: comment les livres, les rouleaux et les lettres s’investissent de propriétés sacrées, positives ou négatives en fonction de leur contenu et de leur contexte d’utilisation; et comment l’écriture, en tant qu’acte de communication, devient un médium permettant d’établir le contact avec des êtres surnaturels, de conclure des pactes avec eux et d’en recevoir des messages.
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2

Munir, Muhammad Fahad, Abdul Basit, Wasim Khan, Athar Wasim, Muhammad Mohsin Khan, Ahmed Saleem, Salman A. AlQahtani, Amil Daraz, and Pranavkumar Pathak. "Hybrid FSK–FDM Scheme for Data Rate Enhancement in Dual-Function Radar and Communication." Sensors 23, no. 12 (June 8, 2023): 5440. http://dx.doi.org/10.3390/s23125440.

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In this paper, we present a hybrid frequency shift keying and frequency division multiplexing (i.e., FSK–FDM) approach for information embedding in dual-function radar and communication (DFRC) design to achieve an improved communication data rate. Since most of the existing works focus on merely two-bit transmission in each pulse repetition interval (PRI) using different amplitude modulation (AM)- and phased modulation (PM)-based techniques, this paper proposes a new technique that doubles the data rate by using a hybrid FSK–FDM technique. Note that the AM-based techniques are used when the communication receiver resides in the side lobe region of the radar. In contrast, the PM-based techniques perform better if the communication receiver is in the main lobe region. However, the proposed design facilitates the delivery of information bits to the communication receivers with an improved bit rate (BR) and bit error rate (BER) regardless of their locations in the radar’s main lobe or side lobe regions. That is, the proposed scheme enables information encoding according to the transmitted waveforms and frequencies using FSK modulation. Next, the modulated symbols are added together to achieve a double data rate using the FDM technique. Finally, each transmitted composite symbol contains multiple FSK-modulated symbols, resulting in an increased data rate for the communication receiver. Numerous simulation results are presented to validate the effectiveness of the proposed technique.
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3

Klaniczay, Gábor, Ildikó Kristóf, and Marie-Pierre Gaviano. "Écritures saintes et pactes diaboliques: Les usages religieux de l’écrit (Moyen Âge et Temps modernes)." Annales. Histoire, Sciences Sociales 56, no. 4-5 (October 2001): 947–80. http://dx.doi.org/10.1017/s0395264900033321.

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Résumé Religion du Livre, le christianisme présente maintes situations quotidiennes, sacramentelles ou imaginaires où l’écrit s’investit et rayonne de sacralité. Il s’agit ici d’examiner, dans le champ de la chrétienté européenne et les milieux des clercs lettrés, les formes d’usage sacré du livre et de l’écrit, hermétisme et rites magiques inclus. Deux questions guident l’exploration du double caractère (sacramentel-saint/magique-diabolique) attribué à l’écrit: comment les livres, les rouleaux et les lettres s’investissent de propriétés sacrées, positives ou négatives en fonction de leur contenu et de leur contexte d’utilisation; et comment l’écriture, en tant qu’acte de communication, devient un médium permettant d’établir le contact avec des êtres surnaturels, de conclure des pactes avec eux et d’en recevoir des messages.
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4

Fournier, Christiane. "L'interprétation pour sourds au pénal en France." Meta 42, no. 3 (September 30, 2002): 533–45. http://dx.doi.org/10.7202/002764ar.

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Résumé L'interprétation pour sourds est une grande inconnue, non seulement pour le grand public, mais également pour bien des magistrats. Cette inconnue repose sur une double méconnaissance : • Qu'est-ce que l'interprétation ? • Quelles sont les incidences de la surdité, pour celui qui en est frappé, au niveau de ses potentialités de communication avec autrui ? Ces méconnaissances peuvent engendrer involontairement des conséquences préjudiciables au justiciable sourd tant sur l'affaire jugée que sur son vécu psychologique en fonction du regard posé sur lui. Par incidence, ces méconnaissances entraînent des jugements très divers, voire faux, à l'égard de l'interprétation et de l'interprète. À travers mon article, je me propose d'expliciter notre activité interprétative en mettant en évidence les problèmes spécifiques liés à la surdité, en les insérant dans le contexte particulier du milieu judiciaire.
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5

Afsar, Md Salah Uddin, Mohammad Rashed Iqbal Faruque, Mayeen Uddin Khandaker, Amal Alqahtani, and David A. Bradley. "A New Compact Split Ring Resonator Based Double Inverse Epsilon Shaped Metamaterial for Triple Band Satellite and Radar Communication." Crystals 12, no. 4 (April 8, 2022): 520. http://dx.doi.org/10.3390/cryst12040520.

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This study presents a double-inverse-epsilon-shaped, triple-band epsilon-negative (ENG) metamaterial with two split ring resonators (SRRs). The proposed unit cell comprises a single slit two SRRs with two inverse-epsilon-shaped metal bits. Rogers RT6002, of dimension 10 × 10 × 1.524 mm3, is used as a substrate. An electromagnetic simulator CST microwave studio is used to investigate the effective medium parameters of the material. The proposed metamaterial shows three resonance peaks that are demarcated at the frequencies 2.38 GHz, 4.55 GHz and 9.42 GHz consecutively. The negative permittivity of the metamaterial is observed at the frequency ranges of 2.39–2.62 GHz, 4.55–4.80 GHz and 9.42–10.25 GHz. The goodness of the material was presented by the effective medium ratio (EMR) of the unit cell at 12.61. In addition, the simulated results are authenticated by using different electromagnetic simulators such as HFSS and ADS for the equivalent circuit model, which exhibits insignificant disparity. The anticipated scheme was finalised through some parametric analyses, together with configuration optimisation, different unit cell dimensions, several substrate materials, and altered electromagnetic (EM) field transmissions. The proposed triple band (S-, C- and X-bands) with negative permittivity (ε) metamaterial is practically used for numerous wireless uses, for instance, far distance radar communication, satellite communication bands and microwave communication.
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6

Li, Zhi Gang, Jiang Tao Lv, and Qiao Yun Wang. "Multiple Targets Detection and Acceleration Estimation for Intelligent Transport System." Advanced Materials Research 915-916 (April 2014): 453–58. http://dx.doi.org/10.4028/www.scientific.net/amr.915-916.453.

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For intelligence transportation system,it is necessary to resolve the problems of multiple targets detection and vehicle longitudinal control with high level response capability. False targets can appearance because of mistaking the combination of these beat frequencies of Frequency Modulate continuous wave radar. A novel waveform named double-slope symmetrical saw-tooth wave is proposed and its corresponding algorithm is also introduced to resolve the problem of multiple targets detection for automotive anti-collision radar. About vehicle longitudinal control, the purpose of this paper is to propose new approach to estimating relative acceleration information for vehicle longitudinal control without inter-vehicle communication. Computer simulation results and theoretical analysis proved that the proposed methods are effective and practical for multiple targets detection and acceleration estimation in intelligence transportation system.
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7

Chen, Aixin, Chuo Yang, Zhizhang Chen, Yanjun Zhang, and Yingyi He. "Design of Multilevel Sequential Rotation Feeding Networks Used for Circularly Polarized Microstrip Antenna Arrays." International Journal of Antennas and Propagation 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/304816.

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Sequential rotation feeding networks can significantly improve performance of the circularly polarized microstrip antenna array. In this paper, single, double, and multiple series-parallel sequential rotation feeding networks are examined. Compared with conventional parallel feeding structures, these multilevel feeding techniques present reduction of loss, increase of bandwidth, and improvement of radiation pattern and polarization purity. By using corner-truncated square patch as the array element and adopting appropriate level of sequential rotation series-parallel feeding structures as feeding networks, microstrip arrays can generate excellent circular polarization (CP) over a relatively wide frequency band. They can find wide applications in phased array radar and satellite communication systems.
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8

Umair, Hassan, Tarik Bin Abdul Latef, Yoshihide Yamada, Wan Nor Liza Binti Wan Mahadi, Mohamadariff Othman, Kamilia Kamardin, Mousa I. Hussein, and Ali Imran Najam. "Tilted Beam Fabry–Perot Antenna with Enhanced Gain and Broadband Low Backscattering." Electronics 10, no. 3 (January 23, 2021): 267. http://dx.doi.org/10.3390/electronics10030267.

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Communication with low radar signature platforms requires antennas with low backscatter, to uphold the low observability attribute of the platforms. In this work, we present the design for a Fabry–Perot (F-P) cavity antenna with low monostatic radar cross section (RCS) and enhanced gain. In addition, peak radiation is tilted inthe elevation plane. This is achieved by incorporating phase gradient metasurface (PGM) with absorptive frequency selective surface (FSS). The periodic surface of metallic square loops with lumped resistors forms the absorptive surface, placed on top of a partially reflecting surface (PRS) with an intervening air gap. The double-sided PRS consists of uniform metallic patches etched in a periodic fashion on its upper side. The bottom surface consists of variable-sized metallic patches, to realize phase gradient. The superstrate assembly is placed at about half free space wavelength above the patch antenna resonating at 6.6 GHz. The antenna’s ground plane and PRS together construct the F-P cavity. A peak gain of 11.5 dBi is achieved at 13° tilt of the elevation plane. Wideband RCS reduction is achieved, spanning 5.6–16 GHz, for x- and y-polarizations of normally incident plane wave. The average RCS reduction is 13 dB. Simulation results with experimental verifications are presented.
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9

Fu, Yanzhi, Yixiang Lin, and Changda Shi. "A Low Cross-Polarization Microstrip Antenna Array for Millimeter Wave Applications." International Journal of Antennas and Propagation 2023 (June 6, 2023): 1–11. http://dx.doi.org/10.1155/2023/7622014.

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A low cross-polarization microstrip antenna array for millimeter wave (mmW) applications is proposed in this paper. The antenna element is composed of symmetric T-shaped patches with vias. The adoption of a double-sided symmetric radiation patch structure can suppress the cross-polarized electric field, and the vias reduces energy leakage during the power transmission along the antenna patches. To verify the concept, a 1 × 8 antenna array is fabricated and measured. The measured −10 dB impedance of the antenna array is 28.4% (31 GHz–41.5 GHz) and the peak gain is 15 dBi. The cross polarization ratio is above 35 dB and the 3 dB beamwidths on E-plane and H-plane are 7.5° and 135°, respectively. The proposed compact size and low cross-polarization antenna array might be a good choice for phased array radar and 5th generation (5G) mobile communication applications.
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10

Fu, Yuping, Xiaocan Xu, and Yu-Sheng Lin. "Actively programmable MEMS-based racetrack-shaped terahertz metamaterial." Journal of Applied Physics 131, no. 11 (March 21, 2022): 115301. http://dx.doi.org/10.1063/5.0069625.

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We present four designs of actively tunable micro-electro-mechanical system-based racetrack-shaped metamaterials (RSMs), which are denoted as RSM_1, RSM_2, RSM_3, and RSM_4, respectively. RSM_1 is composed of asymmetrically single RSM, while RSM_2, RSM_3, and RSM_4 are all composed of asymmetrically double RSM layers with different rotation angles of 0°, 90°, and 180°, respectively. RSM_1 exhibits single-resonance in the transverse electric mode and dual-resonance in the transverse magnetic mode to perform the polarization-dependent characteristic. RSM_2, RSM_3, and RSM_4 exhibit tunable multi-resonance characteristics. By changing the height of the suspended layer, RSM_2, RSM_3, and RSM_4 exhibit optical switching characteristics. These switching resonances can be equivalent to binary bits, i.e., “0” and “1,” which can be programmed for opto-logic applications. These four designs of RSM devices possess the programmable multidigit switching characteristic by changing the incident polarization light. This study provides the possibility of a terahertz metamaterial to be used in the switch, programmable device, radar, and optical wireless communication applications.
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11

Nielsen, Erik R., Gregory R. Herman, Robert C. Tournay, John M. Peters, and Russ S. Schumacher. "Double Impact: When Both Tornadoes and Flash Floods Threaten the Same Place at the Same Time." Weather and Forecasting 30, no. 6 (November 23, 2015): 1673–93. http://dx.doi.org/10.1175/waf-d-15-0084.1.

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Abstract While both tornadoes and flash floods individually present public hazards, when the two threats are both concurrent and collocated (referred to here as TORFF events), unique concerns arise. This study aims to evaluate the climatological and meteorological characteristics associated with TORFF events over the continental United States. Two separate datasets, one based on overlapping tornado and flash flood warnings and the other based on observations, were used to arrive at estimations of the instances when a TORFF event was deemed imminent and verified to have occurred, respectively. These datasets were then used to discern the geographical and meteorological characteristics of recent TORFF events. During 2008–14, TORFF events were found to be publicly communicated via overlapping warnings an average of 400 times per year, with a maximum frequency occurring in the lower Mississippi River valley. Additionally, 68 verified TORFF events between 2008 and 2013 were identified and subsequently classified based on synoptic characteristics and radar observations. In general, synoptic conditions associated with TORFF events were found to exhibit similar characteristics of typical tornadic environments, but the TORFF environment tended to be moister and have stronger synoptic-scale forcing for ascent. These results indicate that TORFF events occur with appreciable frequency and in complex meteorological scenarios. Furthermore, despite these identified differences, TORFF scenarios are not easily distinguishable from tornadic events that fail to produce collocated flash flooding, and present difficult challenges both from the perspective of forecasting and public communication.
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12

Zhang, Hao. "Polarization Characteristics of Electromagnetic Wave Sensing in Confined Space Based on Hybrid Algorithm." Journal of Sensors 2022 (May 13, 2022): 1–9. http://dx.doi.org/10.1155/2022/1724428.

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In order to make better use of electromagnetic waves in communication, navigation, and radar, this invention offers a feature of software to study the polarization of electromagnetic waves in a limited space based on a hybrid algorithm. Using the double Gaussian model, the polarization software model was developed according to vector analysis, and the characteristics of the software at different angles of electromagnetic polarization under the plasma sheath, different peak electron densities, and different collision frequencies were studied in S -band. The results show that at peak electron densities of 1017/m3 and collision frequencies of 0.01 GHz, 0.1 GHz, and 1 GHz, the reverse polarity angles are 53°, 76°, and 77°, respectively, and the higher the electron peak densities, the higher the ratio, and the more severe the degradation of the properties: at an angle of 60° to 1017/m3, 1018/m3, and 1019/m3, the axial ratio of the electron peak density is -1.1.dB, -6.2 dB and -10.1 dB, respectively; the greater the frequency of the electromagnetic wave than the frequency of the collision, the more severe the axial degradation of the electromagnetic wave as the frequency of the electromagnetic wave approaches its frequency corresponding to the maximum electron density. Relationship characteristics were as follows: 2.8 GHz frequency equal to 1017/m3 is the closest to 2.3 GHz electromagnetic frequency, and the axial ratio characteristics deteriorate and are more severe than other conditions; the heterologous medium designed in this paper has simple structure, thin thickness, and easy process preparation, which will have potential applications in radar stealth.
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13

V. Bhavani Shankar and P. Sakthibalan. "Integrating RF MEMS Switch on Array Antenna to Achieve Reconfigurability in Wideband Application." Journal of Electrical Engineering and Automation 5, no. 3 (September 2023): 375–92. http://dx.doi.org/10.36548/jeea.2023.3.006.

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Reconfigurable multi-band antennas are highly used for commercial as well as military purposes as a single antenna could be reconfigured dynamically to send and the receive multiple signals of different frequency simultaneously. In this work an antenna array is designed and integrated with RF MEMS shunt capacitive switch over it, for the applications of S,C,X-band in the frequency range of 2-12GHz. A membrane that can move freely over a coplanar waveguide serves as the MEMS switch. Here, a double meander tuned dual beam arrangement is used to increase switch isolation. Electrostatic mechanisms are used for actuators due to their low power requirements, compact design, and quick switching. By the simulation result, The beam starts to bend from 0.60793mm to 0.4116mm at the voltage 1.78492mV to 57.7382mV and it provides capacitance at 1.435pF to 1.597nF. It was noticed that the insertion loss (S21) and the return loss (S11) of a MEMS switch are around -0.079 dB and 20.618 dB correspondingly, in order to have a good switching characteristic in the up state. The switch has an insertion loss (S21) of -31.307 dB and return loss (S11) of about -0.256 dB in the up state thus exhibiting good switch characteristics. The RF MEMS shunt capacitive switch is integrated on the predesigned antenna array the dynamically shifting of the switch from on state to off state helps achieving the reconfigurability in the antenna array. Such antennas are applicable in spaceborne radar, communication satellites, unmanned aerial vehicles, unmanned aircraft system and various other communication as well as sensing applications.
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14

Carballo, Pablo Zambrano. "La vraisemblance linguistique: réflexions autour de la traduction du lexique balzacien." Babel. Revue internationale de la traduction / International Journal of Translation 58, no. 4 (December 31, 2012): 423–42. http://dx.doi.org/10.1075/babel.58.4.04zam.

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Balzac’s realistic technique relies mainly on the verisimilitude of a huge variety of elements (characters, descriptions, encyclopedic knowledge, etc.), among which language stands out as one of the mainstays of La Comedie humaine in general and Illusions perdues — the key novel — in particular. This paper highlights first the crucial role of Balzac’s singular vocabulary (technical terms, slang words, etc.) for the success of his ambitious realist project, the variety and complexity of his language being a reflection of the variety and complexity of the new society he aims to describe. Then, through a comparative study of a group of English and Spanish translations of Illusions perdues, the paper insists on the importance of consciously maintaining Balzac’s complex lexical singularities in the target languages, this being the only way to offer the reader a text faithful to the realistic intentions of his author instead of a modern “dubbed” easier-tounderstand version. Résumé Le realisme de Balzac etant fonde dans une grande mesure sur la vraisemblance d’un ensemble d’elements divers (personnages, descriptions, encyclopedisme, etc.), la creation d’une ecriture de nature a reveler et dessiner avec exactitude et finesse cette vraisemblance generale, deviennent les objectifs primordiaux du romancier dans La Comedie humaine et plus particulierement dans Illusions perdues, le roman capital. Cet article souligne d’une part, la fonction decisive du lexique singulier (termes techniques, argot propre aux divers tissus sociaux, etc.) necessaire au succes du projet realiste de Balzac, puisque la variete du vocabulaire et la complexite de la plume balzacienne repondent parfaitement a la variete et a la complexite de la nouvelle societe qu’il depeint. D’autre part, l’analyse contrastive de diverses traductions d’Illusions perdues en anglais et en espagnol nous permet de comprendre et de souligner l’importance de transposer consciemment dans les langues d’arrivee les singularites lexicales balzaciennes et leur opacite originale si l’on veut offrir au lecteur etranger non pas un texte ≪ double ≫ dans une langue contemporaine plus comprehensible, mais un texte vraisemblable et donc fidele a l’ambitieuse volonte de Balzac de portraiter avec realisme la societe de son epoque.
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Gao, Ying, Qun Shao, Binzhou Yan, Qifan Li, and Shuxia Guo. "Parabolic Equation Modeling of Electromagnetic Wave Propagation over Rough Sea Surfaces." Sensors 19, no. 5 (March 12, 2019): 1252. http://dx.doi.org/10.3390/s19051252.

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The parabolic equation is an efficient numerical solution for electromagnetic wave propagation. In order to address the difficulties in predicting electromagnetic wave propagation in the maritime environment caused by atmospheric dust and rough sea surfaces, and the shortcomings of the existing research that cannot fully reflect the rough characteristics of sea surfaces, the authors have modelled electromagnetic wave propagation in the maritime environment, including in the presence of atmospheric dust. In this study the authors present a parabolic equation modeling method for calculating the electromagnetic wave propagation over rough sea surfaces. Firstly, the rough sea surface is generated by building a double summation model of three-dimensional random sea surface. Then, combined with the piecewise linear shift transformation method of the parabolic equation model, the parabolic equation random sea surface model is constructed, and the electromagnetic wave propagation characteristics in a rough sea environment are analyzed. Finally, a large number of results are compared with the Miler-Brown model and shadow effect model in rough sea environments, which verifies that the random sea surface model can better characterize the influence of rough sea surfaces on electromagnetic wave propagation. The model can be used to improve the reliability of marine microwave communication links and the detection performance of ship-borne radar.
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Helmholz, P., S. Zlatanova, J. Barton, and M. Aleksandrov. "GEOINFORMATION FOR DISASTER MANAGEMENT 2020 (Gi4DM2020): PREFACE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIV-3/W1-2020 (November 18, 2020): 1–3. http://dx.doi.org/10.5194/isprs-archives-xliv-3-w1-2020-1-2020.

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Abstract. Across the world, nature-triggered disasters fuelled by climate change are worsening. Some two billion people have been affected by the consequences of natural hazards over the last ten years, 95% of which were weather-related (such as floods and windstorms). Fires swept across large parts of California, and in Australia caused unprecedented destruction to lives, wildlife and bush. This picture is likely to become the new normal, and indeed may worsen if unchecked. The Intergovernmental Panel on Climate Change (IPCC) estimates that in some locations, disaster that once had a once-in-a-century frequency may become annual events by 2050.Disaster management needs to keep up. Good cooperation and coordination of crisis response operations are of critical importance to react rapidly and adequately to any crisis situation, while post-disaster recovery presents opportunities to build resilience towards reducing the scale of the next disaster. Technology to support crisis response has advanced greatly in the last few years. Systems for early warning, command and control and decision-making have been successfully implemented in many countries and regions all over the world. Efforts to improve humanitarian response, in particular in relation to combating disasters in rapidly urbanising cities, have also led to better approaches that grapple with complexity and uncertainty.The challenges however are daunting. Many aspects related to the efficient collection and integration of geo-information, applied semantics and situational awareness for disaster management are still open, while agencies, organisations and governmental authorities need to improve their practices for building better resilience.Gi4DM 2020 marked the 13th edition of the Geoinformation for Disaster Management series of conferences. The first conference was held in 2005 in the aftermath of the 2004 Indian Ocean earthquake and tsunami which claimed the lives of over 220,000 civilians. The 2019-20 Australian Bushfire Season saw some 18.6 million Ha of bushland burn, 5,900 buildings destroyed and nearly three billion vertebrates killed. Gi4DM 2020 then was held during Covid-19 pandemic, which took the lives of more than 1,150,000 people by the time of the conference. The pandemic affected the organisation of the conference, but the situation also provided the opportunity to address important global problems.The fundamental goal of the Gi4DM has always been to provide a forum where emergency responders, disaster managers, urban planners, stakeholders, researchers, data providers and system developers can discuss challenges, share experience, discuss new ideas and demonstrate technology. The 12 previous editions of Gi4DM conferences were held in Delft, the Netherlands (March 2005), Goa, India (September 2006), Toronto, Canada (May 2007), Harbin, China (August 2008), Prague, Czech Republic (January 2009), Torino, Italy (February 2010), Antalya, Turkey (May 2011), Enschede, the Netherlands (December, 2012), Hanoi, Vietnam (December 2013), Montpellier, France (2015), Istanbul, Turkey (2018) and Prague, Czech Republic (2019). Through the years Gi4DM has been organised in cooperation with different international bodies such as ISPRS, UNOOSA, ICA, ISCRAM, FIG, IAG, OGC and WFP and supported by national organisations.Gi4DM 2020 was held as part of Climate Change and Disaster Management: Technology and Resilience for a Troubled World. The event took place through the whole week of 30th of November to 4th of December, Sydney, Australia and included three events: Gi4DM 2020, NSW Surveying and Spatial Sciences Institute (NSW SSSI) annual meeting and Urban Resilience Asia Pacific 2 (URAP2).The event explored two interlinked aspects of disaster management in relation to climate change. The first was geo-information technologies and their application for work in crisis situations, as well as sensor and communication networks and their roles for improving situational awareness. The second aspect was resilience, and its role and purpose across the entire cycle of disaster management, from pre-disaster preparedness to post-disaster recovery including challenges and opportunities in relation to rapid urbanisation and the role of security in improved disaster management practices.This volume consists of 22 scientific papers. These were selected on the basis of double-blind review from among the 40 short papers submitted to the Gi4DM 2020 conference. Each paper was reviewed by two scientific reviewers. The authors of the papers were encouraged to revise, extend and adapt their papers to reflect the comments of the reviewers and fit the goals of this volume. The selected papers concentrate on monitoring and analysis of various aspects related to Covid-19 (4), emergency response (4), earthquakes (3), flood (2), forest fire, landslides, glaciers, drought, land cover change, crop management, surface temperature, address standardisation and education for disaster management. The presented methods range from remote sensing, LiDAR and photogrammetry on different platforms to GIS and Web-based technologies. Figure 1 illustrates the covered topics via wordcount of keywords and titles.The Gi4DM 2020 program consisted of scientific presentations, keynote speeches, panel discussions and tutorials. The four keynotes speakers Prof Suzan Cutter (Hazard and Vulnerability Research Institute, USC, US), Jeremy Fewtrell (NSW Fire and Rescue, Australia), Prof Orhan Altan (Ad-hoc Committee on RISK and Disaster Management, GeoUnions, Turkey) and Prof Philip Gibbins (Fenner School of Environment and Society, ANU, Australia) concentrated on different aspects of disaster and risk management in the context of climate change. Eight tutorials offered exciting workshops and hands-on on: Semantic web tools and technologies within Disaster Management, Structure-from-motion photogrammetry, Radar Remote Sensing, Dam safety: Monitoring subsidence with SAR Interferometry, Location-based Augmented Reality apps with Unity and Mapbox, Visualising bush fires datasets using open source, Making data smarter to manage disasters and emergency situational awareness and Response using HERE Location Services. The scientific sessions were blended with panel discussions to provide more opportunities to exchange ideas and experiences, connect people and researchers from all over the world.The editors of this volume acknowledge all members of the scientific committee for their time, careful review and valuable comments: Abdoulaye Diakité (Australia), Alexander Rudloff (Germany), Alias Abdul Rahman (Malaysia), Alper Yilmaz (USA), Amy Parker (Australia), Ashraf Dewan (Australia), Bapon Shm Fakhruddin (New Zealand), Batuhan Osmanoglu (USA), Ben Gorte (Australia), Bo Huang (Hong Kong), Brendon McAtee (Australia), Brian Lee (Australia), Bruce Forster (Australia), Charity Mundava (Australia), Charles Toth (USA), Chris Bellman (Australia), Chris Pettit (Australia), Clive Fraser (Australia), Craig Glennie (USA), David Belton (Australia), Dev Raj Paudyal (Australia), Dimitri Bulatov (Germany), Dipak Paudyal (Australia), Dorota Iwaszczuk (Germany), Edward Verbree (The Netherlands), Eliseo Clementini (Italy), Fabio Giulio Tonolo (Italy), Fazlay Faruque (USA), Filip Biljecki (Singapore), Petra Helmholz (Australia), Francesco Nex (The Netherlands), Franz Rottensteiner (Germany), George Sithole (South Africa), Graciela Metternicht (Australia), Haigang Sui (China), Hans-Gerd Maas (Germany), Hao Wu (China), Huayi Wu (China), Ivana Ivanova (Australia), Iyyanki Murali Krishna (India), Jack Barton (Australia), Jagannath Aryal (Australia), Jie Jiang (China), Joep Compvoets (Belgium), Jonathan Li (Canada), Kourosh Khoshelham (Australia), Krzysztof Bakuła (Poland), Lars Bodum (Denmark), Lena Halounova (Czech Republic), Madhu Chandra (Germany), Maria Antonia Brovelli (Italy), Martin Breunig (Germany), Martin Tomko (Australia), Mila Koeva (The Netherlands), Mingshu Wang (The Netherlands), Mitko Aleksandrov (Australia), Mulhim Al Doori (UAE), Nancy Glenn (Australia), Negin Nazarian (Australia), Norbert Pfeifer (Austria), Norman Kerle (The Netherlands), Orhan Altan (Turkey), Ori Gudes (Australia), Pawel Boguslawski (Poland), Peter van Oosterom (The Netherlands), Petr Kubíček (Czech Republic), Petros Patias (Greece), Piero Boccardo (Italy), Qiaoli Wu (China), Qing Zhu (China), Riza Yosia Sunindijo (Australia), Roland Billen (Belgium), Rudi Stouffs (Singapore), Scott Hawken (Australia), Serene Coetzee (South Africa), Shawn Laffan (Australia), Shisong Cao (China), Sisi Zlatanova (Australia), Songnian Li (Canada), Stephan Winter (Australia), Tarun Ghawana (Australia), Ümit Işıkdağ (Turkey), Wei Li (Australia), Wolfgang Reinhardt (Germany), Xianlian Liang (Finland) and Yanan Liu (China).The editors would like to express their gratitude to all contributors, who made this volume possible. Many thanks go to all supporting organisations: ISPRS, SSSI, URAP2, Blackash, Mercury and ISPRS Journal of Geoinformation. The editors are grateful to the continued support of the involved Universities: The University of New South Wales, Curtin University, Australian National University and The University of Melbourne.
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Helmholz, P., S. Zlatanova, J. Barton, and M. Aleksandrov. "GEOINFORMATION FOR DISASTER MANAGEMENT 2020 (GI4DM2020): PREFACE." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences VI-3/W1-2020 (November 17, 2020): 1–2. http://dx.doi.org/10.5194/isprs-annals-vi-3-w1-2020-1-2020.

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Abstract:
Abstract. Across the world, nature-triggered disasters fuelled by climate change are worsening. Some two billion people have been affected by the consequences of natural hazards over the last ten years, 95% of which were weather-related (such as floods and windstorms). Fires swept across large parts of California, and in Australia caused unprecedented destruction to lives, wildlife and bush. This picture is likely to become the new normal, and indeed may worsen if unchecked. The Intergovernmental Panel on Climate Change (IPCC) estimates that in some locations, disaster that once had a once-in-a-century frequency may become annual events by 2050.Disaster management needs to keep up. Good cooperation and coordination of crisis response operations are of critical importance to react rapidly and adequately to any crisis situation, while post-disaster recovery presents opportunities to build resilience towards reducing the scale of the next disaster. Technology to support crisis response has advanced greatly in the last few years. Systems for early warning, command and control and decision-making have been successfully implemented in many countries and regions all over the world. Efforts to improve humanitarian response, in particular in relation to combating disasters in rapidly urbanising cities, have also led to better approaches that grapple with complexity and uncertainty.The challenges however are daunting. Many aspects related to the efficient collection and integration of geo-information, applied semantics and situational awareness for disaster management are still open, while agencies, organisations and governmental authorities need to improve their practices for building better resilience.Gi4DM 2020 marked the 13th edition of the Geoinformation for Disaster Management series of conferences. The first conference was held in 2005 in the aftermath of the 2004 Indian Ocean earthquake and tsunami which claimed the lives of over 220,000 civilians. The 2019-20 Australian Bushfire Season saw some 18.6 million Ha of bushland burn, 5,900 buildings destroyed and nearly three billion vertebrates killed. Gi4DM 2020 then was held during Covid-19 pandemic, which took the lives of more than 1,150,000 people by the time of the conference. The pandemic affected the organisation of the conference, but the situation also provided the opportunity to address important global problems.The fundamental goal of the Gi4DM has always been to provide a forum where emergency responders, disaster managers, urban planners, stakeholders, researchers, data providers and system developers can discuss challenges, share experience, discuss new ideas and demonstrate technology. The 12 previous editions of Gi4DM conferences were held in Delft, the Netherlands (March 2005), Goa, India (September 2006), Toronto, Canada (May 2007), Harbin, China (August 2008), Prague, Czech Republic (January 2009), Torino, Italy (February 2010), Antalya, Turkey (May 2011), Enschede, the Netherlands (December, 2012), Hanoi, Vietnam (December 2013), Montpellier, France (2015), Istanbul, Turkey (2018) and Prague, Czech Republic (2019). Through the years Gi4DM has been organised in cooperation with different international bodies such as ISPRS, UNOOSA, ICA, ISCRAM, FIG, IAG, OGC and WFP and supported by national organisations.Gi4DM 2020 was held as part of Climate Change and Disaster Management: Technology and Resilience for a Troubled World. The event took place through the whole week of 30th of November to 4th of December, Sydney, Australia and included three events: Gi4DM 2020, NSW Surveying and Spatial Sciences Institute (NSW SSSI) annual meeting and Urban Resilience Asia Pacific 2 (URAP2).The event explored two interlinked aspects of disaster management in relation to climate change. The first was geo-information technologies and their application for work in crisis situations, as well as sensor and communication networks and their roles for improving situational awareness. The second aspect was resilience, and its role and purpose across the entire cycle of disaster management, from pre-disaster preparedness to post-disaster recovery including challenges and opportunities in relation to rapid urbanisation and the role of security in improved disaster management practices.This volume consists of 16 peer-reviewed scientific papers. These were selected on the basis of double-blind review from among the 25 full papers submitted to the Gi4DM 2020 conference. Each paper was reviewed by three scientific reviewers. The authors of the papers were encouraged to revise, extend and adapt their papers to reflect the comments of the reviewers and fit the goals of this volume. The selected papers concentrate on monitoring and analysis of forest fire (3), landslides (3), flood (2), earthquake, avalanches, water pollution, heat, evacuation and urban sustainability, applying a variety of remote sensing, GIS and Web-based technologies. Figure 1 illustrates the scope of the covered topics though the word count of keywords and titles.The Gi4DM 2020 program consisted of scientific presentations, keynote speeches, panel discussions and tutorials. The four keynotes speakers Prof Suzan Cutter (Hazard and Vulnerability Research Institute, USC, US), Jeremy Fewtrell (NSW Fire and Rescue, Australia), Prof Orhan Altan (Ad-hoc Committee on RISK and Disaster Management, GeoUnions, Turkey) and Prof Philip Gibbins (Fenner School of Environment and Society, ANU, Australia) concentrated on different aspects of disaster and risk management in the context of climate change. Eight tutorials offered exciting workshops and hands-on on: Semantic web tools and technologies within Disaster Management, Structure-from-motion photogrammetry, Radar Remote Sensing, Dam safety: Monitoring subsidence with SAR Interferometry, Location-based Augmented Reality apps with Unity and Mapbox, Visualising bush fires datasets using open source, Making data smarter to manage disasters and emergency situational awareness and Response using HERE Location Services. The scientific sessions were blended with panel discussions to provide more opportunities to exchange ideas and experiences, connect people and researchers from all over the world.The editors of this volume acknowledge all members of the scientific committee for their time, careful review and valuable comments: Abdoulaye Diakité (Australia), Alexander Rudloff (Germany), Alias Abdul Rahman (Malaysia), Alper Yilmaz (USA), Amy Parker (Australia), Ashraf Dewan (Australia), Bapon Shm Fakhruddin (New Zealand), Batuhan Osmanoglu (USA), Ben Gorte (Australia), Bo Huang (Hong Kong), Brendon McAtee (Australia), Brian Lee (Australia), Bruce Forster (Australia), Charity Mundava (Australia), Charles Toth (USA), Chris Bellman (Australia), Chris Pettit (Australia), Clive Fraser (Australia), Craig Glennie (USA), David Belton (Australia), Dev Raj Paudyal (Australia), Dimitri Bulatov (Germany), Dipak Paudyal (Australia), Dorota Iwaszczuk (Germany), Edward Verbree (The Netherlands), Eliseo Clementini (Italy), Fabio Giulio Tonolo (Italy), Fazlay Faruque (USA), Filip Biljecki (Singapore), Petra Helmholz (Australia), Francesco Nex (The Netherlands), Franz Rottensteiner (Germany), George Sithole (South Africa), Graciela Metternicht (Australia), Haigang Sui (China), Hans-Gerd Maas (Germany), Hao Wu (China), Huayi Wu (China), Ivana Ivanova (Australia), Iyyanki Murali Krishna (India), Jack Barton (Australia), Jagannath Aryal (Australia), Jie Jiang (China), Joep Compvoets (Belgium), Jonathan Li (Canada), Kourosh Khoshelham (Australia), Krzysztof Bakuła (Poland), Lars Bodum (Denmark), Lena Halounova (Czech Republic), Madhu Chandra (Germany), Maria Antonia Brovelli (Italy), Martin Breunig (Germany), Martin Tomko (Australia), Mila Koeva (The Netherlands), Mingshu Wang (The Netherlands), Mitko Aleksandrov (Australia), Mulhim Al Doori (UAE), Nancy Glenn (Australia), Negin Nazarian (Australia), Norbert Pfeifer (Austria), Norman Kerle (The Netherlands), Orhan Altan (Turkey), Ori Gudes (Australia), Pawel Boguslawski (Poland), Peter van Oosterom (The Netherlands), Petr Kubíček (Czech Republic), Petros Patias (Greece), Piero Boccardo (Italy), Qiaoli Wu (China), Qing Zhu (China), Riza Yosia Sunindijo (Australia), Roland Billen (Belgium), Rudi Stouffs (Singapore), Scott Hawken (Australia), Serene Coetzee (South Africa), Shawn Laffan (Australia), Shisong Cao (China), Sisi Zlatanova (Australia), Songnian Li (Canada), Stephan Winter (Australia), Tarun Ghawana (Australia), Ümit Işıkdağ (Turkey), Wei Li (Australia), Wolfgang Reinhardt (Germany), Xianlian Liang (Finland) and Yanan Liu (China).The editors would like to express their gratitude to all contributors, who made this volume possible. Many thanks go to all supporting organisations: ISPRS, SSSI, URAP2, Blackash, Mercury and ISPRS Journal of Geoinformation. The editors are grateful to the continued support of the involved Universities: The University of New South Wales, Curtin University, Australian National University and The University of Melbourne.
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Alqahtani, Sarra, and Rose Gamble. "Volume 2, Issue 3, Special issue on Recent Advances in Engineering Systems (Published Papers) Articles Transmit / Received Beamforming for Frequency Diverse Array with Symmetrical frequency offsets Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 1-6 (2017); View Description Detailed Analysis of Amplitude and Slope Diffraction Coefficients for knife-edge structure in S-UTD-CH Model Eray Arik, Mehmet Baris Tabakcioglu Adv. Sci. Technol. Eng. Syst. J. 2(3), 7-11 (2017); View Description Applications of Case Based Organizational Memory Supported by the PAbMM Architecture Martín, María de los Ángeles, Diván, Mario José Adv. Sci. Technol. Eng. Syst. J. 2(3), 12-23 (2017); View Description Low Probability of Interception Beampattern Using Frequency Diverse Array Antenna Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 24-29 (2017); View Description Zero Trust Cloud Networks using Transport Access Control and High Availability Optical Bypass Switching Casimer DeCusatis, Piradon Liengtiraphan, Anthony Sager Adv. Sci. Technol. Eng. Syst. J. 2(3), 30-35 (2017); View Description A Derived Metrics as a Measurement to Support Efficient Requirements Analysis and Release Management Indranil Nath Adv. Sci. Technol. Eng. Syst. J. 2(3), 36-40 (2017); View Description Feedback device of temperature sensation for a myoelectric prosthetic hand Yuki Ueda, Chiharu Ishii Adv. Sci. Technol. Eng. Syst. J. 2(3), 41-40 (2017); View Description Deep venous thrombus characterization: ultrasonography, elastography and scattering operator Thibaud Berthomier, Ali Mansour, Luc Bressollette, Frédéric Le Roy, Dominique Mottier Adv. Sci. Technol. Eng. Syst. J. 2(3), 48-59 (2017); View Description Improving customs’ border control by creating a reference database of cargo inspection X-ray images Selina Kolokytha, Alexander Flisch, Thomas Lüthi, Mathieu Plamondon, Adrian Schwaninger, Wicher Vasser, Diana Hardmeier, Marius Costin, Caroline Vienne, Frank Sukowski, Ulf Hassler, Irène Dorion, Najib Gadi, Serge Maitrejean, Abraham Marciano, Andrea Canonica, Eric Rochat, Ger Koomen, Micha Slegt Adv. Sci. Technol. Eng. Syst. J. 2(3), 60-66 (2017); View Description Aviation Navigation with Use of Polarimetric Technologies Arsen Klochan, Ali Al-Ammouri, Viktor Romanenko, Vladimir Tronko Adv. Sci. Technol. Eng. Syst. J. 2(3), 67-72 (2017); View Description Optimization of Multi-standard Transmitter Architecture Using Single-Double Conversion Technique Used for Rescue Operations Riadh Essaadali, Said Aliouane, Chokri Jebali and Ammar Kouki Adv. Sci. Technol. Eng. Syst. J. 2(3), 73-81 (2017); View Description Singular Integral Equations in Electromagnetic Waves Reflection Modeling A. S. Ilinskiy, T. N. Galishnikova Adv. Sci. Technol. Eng. Syst. J. 2(3), 82-87 (2017); View Description Methodology for Management of Information Security in Industrial Control Systems: A Proof of Concept aligned with Enterprise Objectives. Fabian Bustamante, Walter Fuertes, Paul Diaz, Theofilos Toulqueridis Adv. Sci. Technol. Eng. Syst. J. 2(3), 88-99 (2017); View Description Dependence-Based Segmentation Approach for Detecting Morpheme Boundaries Ahmed Khorsi, Abeer Alsheddi Adv. Sci. Technol. Eng. Syst. J. 2(3), 100-110 (2017); View Description Paper Improving Rule Based Stemmers to Solve Some Special Cases of Arabic Language Soufiane Farrah, Hanane El Manssouri, Ziyati Elhoussaine, Mohamed Ouzzif Adv. Sci. Technol. Eng. Syst. J. 2(3), 111-115 (2017); View Description Medical imbalanced data classification Sara Belarouci, Mohammed Amine Chikh Adv. Sci. Technol. Eng. Syst. J. 2(3), 116-124 (2017); View Description ADOxx Modelling Method Conceptualization Environment Nesat Efendioglu, Robert Woitsch, Wilfrid Utz, Damiano Falcioni Adv. Sci. Technol. Eng. Syst. J. 2(3), 125-136 (2017); View Description GPSR+Predict: An Enhancement for GPSR to Make Smart Routing Decision by Anticipating Movement of Vehicles in VANETs Zineb Squalli Houssaini, Imane Zaimi, Mohammed Oumsis, Saïd El Alaoui Ouatik Adv. Sci. Technol. Eng. Syst. J. 2(3), 137-146 (2017); View Description Optimal Synthesis of Universal Space Vector Digital Algorithm for Matrix Converters Adrian Popovici, Mircea Băbăiţă, Petru Papazian Adv. Sci. Technol. Eng. Syst. J. 2(3), 147-152 (2017); View Description Control design for axial flux permanent magnet synchronous motor which operates above the nominal speed Xuan Minh Tran, Nhu Hien Nguyen, Quoc Tuan Duong Adv. Sci. Technol. Eng. Syst. J. 2(3), 153-159 (2017); View Description A synchronizing second order sliding mode control applied to decentralized time delayed multi−agent robotic systems: Stability Proof Marwa Fathallah, Fatma Abdelhedi, Nabil Derbel Adv. Sci. Technol. Eng. Syst. J. 2(3), 160-170 (2017); View Description Fault Diagnosis and Tolerant Control Using Observer Banks Applied to Continuous Stirred Tank Reactor Martin F. Pico, Eduardo J. Adam Adv. Sci. Technol. Eng. Syst. J. 2(3), 171-181 (2017); View Description Development and Validation of a Heat Pump System Model Using Artificial Neural Network Nabil Nassif, Jordan Gooden Adv. Sci. Technol. Eng. Syst. J. 2(3), 182-185 (2017); View Description Assessment of the usefulness and appeal of stigma-stop by psychology students: a serious game designed to reduce the stigma of mental illness Adolfo J. Cangas, Noelia Navarro, Juan J. Ojeda, Diego Cangas, Jose A. Piedra, José Gallego Adv. Sci. Technol. Eng. Syst. J. 2(3), 186-190 (2017); View Description Kinect-Based Moving Human Tracking System with Obstacle Avoidance Abdel Mehsen Ahmad, Zouhair Bazzal, Hiba Al Youssef Adv. Sci. Technol. Eng. Syst. J. 2(3), 191-197 (2017); View Description A security approach based on honeypots: Protecting Online Social network from malicious profiles Fatna Elmendili, Nisrine Maqran, Younes El Bouzekri El Idrissi, Habiba Chaoui Adv. Sci. Technol. Eng. Syst. J. 2(3), 198-204 (2017); View Description Pulse Generator for Ultrasonic Piezoelectric Transducer Arrays Based on a Programmable System-on-Chip (PSoC) Pedro Acevedo, Martín Fuentes, Joel Durán, Mónica Vázquez, Carlos Díaz Adv. Sci. Technol. Eng. Syst. J. 2(3), 205-209 (2017); View Description Enabling Toy Vehicles Interaction With Visible Light Communication (VLC) M. A. Ilyas, M. B. Othman, S. M. Shah, Mas Fawzi Adv. Sci. Technol. Eng. Syst. J. 2(3), 210-216 (2017); View Description Analysis of Fractional-Order 2xn RLC Networks by Transmission Matrices Mahmut Ün, Manolya Ün Adv. Sci. Technol. Eng. Syst. J. 2(3), 217-220 (2017); View Description Fire extinguishing system in large underground garages Ivan Antonov, Rositsa Velichkova, Svetlin Antonov, Kamen Grozdanov, Milka Uzunova, Ikram El Abbassi Adv. Sci. Technol. Eng. Syst. J. 2(3), 221-226 (2017); View Description Directional Antenna Modulation Technique using A Two-Element Frequency Diverse Array Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 227-232 (2017); View Description Classifying region of interests from mammograms with breast cancer into BIRADS using Artificial Neural Networks Estefanía D. Avalos-Rivera, Alberto de J. Pastrana-Palma Adv. Sci. Technol. Eng. Syst. J. 2(3), 233-240 (2017); View Description Magnetically Levitated and Guided Systems Florian Puci, Miroslav Husak Adv. Sci. Technol. Eng. Syst. J. 2(3), 241-244 (2017); View Description Energy-Efficient Mobile Sensing in Distributed Multi-Agent Sensor Networks Minh T. Nguyen Adv. Sci. Technol. Eng. Syst. J. 2(3), 245-253 (2017); View Description Validity and efficiency of conformal anomaly detection on big distributed data Ilia Nouretdinov Adv. Sci. Technol. Eng. Syst. J. 2(3), 254-267 (2017); View Description S-Parameters Optimization in both Segmented and Unsegmented Insulated TSV upto 40GHz Frequency Juma Mary Atieno, Xuliang Zhang, HE Song Bai Adv. Sci. Technol. Eng. Syst. J. 2(3), 268-276 (2017); View Description Synthesis of Important Design Criteria for Future Vehicle Electric System Lisa Braun, Eric Sax Adv. Sci. Technol. Eng. Syst. J. 2(3), 277-283 (2017); View Description Gestural Interaction for Virtual Reality Environments through Data Gloves G. Rodriguez, N. Jofre, Y. Alvarado, J. Fernández, R. Guerrero Adv. Sci. Technol. Eng. Syst. J. 2(3), 284-290 (2017); View Description Solving the Capacitated Network Design Problem in Two Steps Meriem Khelifi, Mohand Yazid Saidi, Saadi Boudjit Adv. Sci. Technol. Eng. Syst. J. 2(3), 291-301 (2017); View Description A Computationally Intelligent Approach to the Detection of Wormhole Attacks in Wireless Sensor Networks Mohammad Nurul Afsar Shaon, Ken Ferens Adv. Sci. Technol. Eng. Syst. J. 2(3), 302-320 (2017); View Description Real Time Advanced Clustering System Giuseppe Spampinato, Arcangelo Ranieri Bruna, Salvatore Curti, Viviana D’Alto Adv. Sci. Technol. Eng. Syst. J. 2(3), 321-326 (2017); View Description Indoor Mobile Robot Navigation in Unknown Environment Using Fuzzy Logic Based Behaviors Khalid Al-Mutib, Foudil Abdessemed Adv. Sci. Technol. Eng. Syst. J. 2(3), 327-337 (2017); View Description Validity of Mind Monitoring System as a Mental Health Indicator using Voice Naoki Hagiwara, Yasuhiro Omiya, Shuji Shinohara, Mitsuteru Nakamura, Masakazu Higuchi, Shunji Mitsuyoshi, Hideo Yasunaga, Shinichi Tokuno Adv. Sci. Technol. Eng. Syst. J. 2(3), 338-344 (2017); View Description The Model of Adaptive Learning Objects for virtual environments instanced by the competencies Carlos Guevara, Jose Aguilar, Alexandra González-Eras Adv. Sci. Technol. Eng. Syst. J. 2(3), 345-355 (2017); View Description An Overview of Traceability: Towards a general multi-domain model Kamal Souali, Othmane Rahmaoui, Mohammed Ouzzif Adv. Sci. Technol. Eng. Syst. J. 2(3), 356-361 (2017); View Description L-Band SiGe HBT Active Differential Equalizers with Variable, Positive or Negative Gain Slopes Using Dual-Resonant RLC Circuits Yasushi Itoh, Hiroaki Takagi Adv. Sci. Technol. Eng. Syst. J. 2(3), 362-368 (2017); View Description Moving Towards Reliability-Centred Management of Energy, Power and Transportation Assets Kang Seng Seow, Loc K. Nguyen, Kelvin Tan, Kees-Jan Van Oeveren Adv. Sci. Technol. Eng. Syst. J. 2(3), 369-375 (2017); View Description Secure Path Selection under Random Fading Furqan Jameel, Faisal, M Asif Ali Haider, Amir Aziz Butt Adv. Sci. Technol. Eng. Syst. J. 2(3), 376-383 (2017); View Description Security in SWIPT with Power Splitting Eavesdropper Furqan Jameel, Faisal, M Asif Ali Haider, Amir Aziz Butt Adv. Sci. Technol. Eng. Syst. J. 2(3), 384-388 (2017); View Description Performance Analysis of Phased Array and Frequency Diverse Array Radar Ambiguity Functions Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 389-394 (2017); View Description Adaptive Discrete-time Fuzzy Sliding Mode Control For a Class of Chaotic Systems Hanene Medhaffar, Moez Feki, Nabil Derbel Adv. Sci. Technol. Eng. Syst. J. 2(3), 395-400 (2017); View Description Fault Tolerant Inverter Topology for the Sustainable Drive of an Electrical Helicopter Igor Bolvashenkov, Jörg Kammermann, Taha Lahlou, Hans-Georg Herzog Adv. Sci. Technol. Eng. Syst. J. 2(3), 401-411 (2017); View Description Computational Intelligence Methods for Identifying Voltage Sag in Smart Grid Turgay Yalcin, Muammer Ozdemir Adv. Sci. Technol. Eng. Syst. J. 2(3), 412-419 (2017); View Description A Highly-Secured Arithmetic Hiding cum Look-Up Table (AHLUT) based S-Box for AES-128 Implementation Ali Akbar Pammu, Kwen-Siong Chong, Bah-Hwee Gwee Adv. Sci. Technol. Eng. Syst. J. 2(3), 420-426 (2017); View Description Service Productivity and Complexity in Medical Rescue Services Markus Harlacher, Andreas Petz, Philipp Przybysz, Olivia Chaillié, Susanne Mütze-Niewöhner Adv. Sci. Technol. Eng. Syst. J. 2(3), 427-434 (2017); View Description Principal Component Analysis Application on Flavonoids Characterization Che Hafizah Che Noh, Nor Fadhillah Mohamed Azmin, Azura Amid Adv. Sci. Technol. Eng. Syst. J. 2(3), 435-440 (2017); View Description A Reconfigurable Metal-Plasma Yagi-Yuda Antenna for Microwave Applications Giulia Mansutti, Davide Melazzi, Antonio-Daniele Capobianco Adv. Sci. Technol. Eng. Syst. J. 2(3), 441-448 (2017); View Description Verifying the Detection Results of Impersonation Attacks in Service Clouds." Advances in Science, Technology and Engineering Systems Journal 2, no. 3 (May 2017): 449–59. http://dx.doi.org/10.25046/aj020358.

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19

Abdelhedi, Fatma, and Nabil Derbel. "Volume 2, Issue 3, Special issue on Recent Advances in Engineering Systems (Published Papers) Articles Transmit / Received Beamforming for Frequency Diverse Array with Symmetrical frequency offsets Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 1-6 (2017); View Description Detailed Analysis of Amplitude and Slope Diffraction Coefficients for knife-edge structure in S-UTD-CH Model Eray Arik, Mehmet Baris Tabakcioglu Adv. Sci. Technol. Eng. Syst. J. 2(3), 7-11 (2017); View Description Applications of Case Based Organizational Memory Supported by the PAbMM Architecture Martín, María de los Ángeles, Diván, Mario José Adv. Sci. Technol. Eng. Syst. J. 2(3), 12-23 (2017); View Description Low Probability of Interception Beampattern Using Frequency Diverse Array Antenna Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 24-29 (2017); View Description Zero Trust Cloud Networks using Transport Access Control and High Availability Optical Bypass Switching Casimer DeCusatis, Piradon Liengtiraphan, Anthony Sager Adv. Sci. Technol. Eng. Syst. J. 2(3), 30-35 (2017); View Description A Derived Metrics as a Measurement to Support Efficient Requirements Analysis and Release Management Indranil Nath Adv. Sci. Technol. Eng. Syst. J. 2(3), 36-40 (2017); View Description Feedback device of temperature sensation for a myoelectric prosthetic hand Yuki Ueda, Chiharu Ishii Adv. Sci. Technol. Eng. Syst. J. 2(3), 41-40 (2017); View Description Deep venous thrombus characterization: ultrasonography, elastography and scattering operator Thibaud Berthomier, Ali Mansour, Luc Bressollette, Frédéric Le Roy, Dominique Mottier Adv. Sci. Technol. Eng. Syst. J. 2(3), 48-59 (2017); View Description Improving customs’ border control by creating a reference database of cargo inspection X-ray images Selina Kolokytha, Alexander Flisch, Thomas Lüthi, Mathieu Plamondon, Adrian Schwaninger, Wicher Vasser, Diana Hardmeier, Marius Costin, Caroline Vienne, Frank Sukowski, Ulf Hassler, Irène Dorion, Najib Gadi, Serge Maitrejean, Abraham Marciano, Andrea Canonica, Eric Rochat, Ger Koomen, Micha Slegt Adv. Sci. Technol. Eng. Syst. J. 2(3), 60-66 (2017); View Description Aviation Navigation with Use of Polarimetric Technologies Arsen Klochan, Ali Al-Ammouri, Viktor Romanenko, Vladimir Tronko Adv. Sci. Technol. Eng. Syst. J. 2(3), 67-72 (2017); View Description Optimization of Multi-standard Transmitter Architecture Using Single-Double Conversion Technique Used for Rescue Operations Riadh Essaadali, Said Aliouane, Chokri Jebali and Ammar Kouki Adv. Sci. Technol. Eng. Syst. J. 2(3), 73-81 (2017); View Description Singular Integral Equations in Electromagnetic Waves Reflection Modeling A. S. Ilinskiy, T. N. Galishnikova Adv. Sci. Technol. Eng. Syst. J. 2(3), 82-87 (2017); View Description Methodology for Management of Information Security in Industrial Control Systems: A Proof of Concept aligned with Enterprise Objectives. Fabian Bustamante, Walter Fuertes, Paul Diaz, Theofilos Toulqueridis Adv. Sci. Technol. Eng. Syst. J. 2(3), 88-99 (2017); View Description Dependence-Based Segmentation Approach for Detecting Morpheme Boundaries Ahmed Khorsi, Abeer Alsheddi Adv. Sci. Technol. Eng. Syst. J. 2(3), 100-110 (2017); View Description Paper Improving Rule Based Stemmers to Solve Some Special Cases of Arabic Language Soufiane Farrah, Hanane El Manssouri, Ziyati Elhoussaine, Mohamed Ouzzif Adv. Sci. Technol. Eng. Syst. J. 2(3), 111-115 (2017); View Description Medical imbalanced data classification Sara Belarouci, Mohammed Amine Chikh Adv. Sci. Technol. Eng. Syst. J. 2(3), 116-124 (2017); View Description ADOxx Modelling Method Conceptualization Environment Nesat Efendioglu, Robert Woitsch, Wilfrid Utz, Damiano Falcioni Adv. Sci. Technol. Eng. Syst. J. 2(3), 125-136 (2017); View Description GPSR+Predict: An Enhancement for GPSR to Make Smart Routing Decision by Anticipating Movement of Vehicles in VANETs Zineb Squalli Houssaini, Imane Zaimi, Mohammed Oumsis, Saïd El Alaoui Ouatik Adv. Sci. Technol. Eng. Syst. J. 2(3), 137-146 (2017); View Description Optimal Synthesis of Universal Space Vector Digital Algorithm for Matrix Converters Adrian Popovici, Mircea Băbăiţă, Petru Papazian Adv. Sci. Technol. Eng. Syst. J. 2(3), 147-152 (2017); View Description Control design for axial flux permanent magnet synchronous motor which operates above the nominal speed Xuan Minh Tran, Nhu Hien Nguyen, Quoc Tuan Duong Adv. Sci. Technol. Eng. Syst. J. 2(3), 153-159 (2017); View Description A synchronizing second order sliding mode control applied to decentralized time delayed multi−agent robotic systems: Stability Proof Marwa Fathallah, Fatma Abdelhedi, Nabil Derbel Adv. Sci. Technol. Eng. Syst. J. 2(3), 160-170 (2017); View Description Fault Diagnosis and Tolerant Control Using Observer Banks Applied to Continuous Stirred Tank Reactor Martin F. Pico, Eduardo J. Adam Adv. Sci. Technol. Eng. Syst. J. 2(3), 171-181 (2017); View Description Development and Validation of a Heat Pump System Model Using Artificial Neural Network Nabil Nassif, Jordan Gooden Adv. Sci. Technol. Eng. Syst. J. 2(3), 182-185 (2017); View Description Assessment of the usefulness and appeal of stigma-stop by psychology students: a serious game designed to reduce the stigma of mental illness Adolfo J. Cangas, Noelia Navarro, Juan J. Ojeda, Diego Cangas, Jose A. Piedra, José Gallego Adv. Sci. Technol. Eng. Syst. J. 2(3), 186-190 (2017); View Description Kinect-Based Moving Human Tracking System with Obstacle Avoidance Abdel Mehsen Ahmad, Zouhair Bazzal, Hiba Al Youssef Adv. Sci. Technol. Eng. Syst. J. 2(3), 191-197 (2017); View Description A security approach based on honeypots: Protecting Online Social network from malicious profiles Fatna Elmendili, Nisrine Maqran, Younes El Bouzekri El Idrissi, Habiba Chaoui Adv. Sci. Technol. Eng. Syst. J. 2(3), 198-204 (2017); View Description Pulse Generator for Ultrasonic Piezoelectric Transducer Arrays Based on a Programmable System-on-Chip (PSoC) Pedro Acevedo, Martín Fuentes, Joel Durán, Mónica Vázquez, Carlos Díaz Adv. Sci. Technol. Eng. Syst. J. 2(3), 205-209 (2017); View Description Enabling Toy Vehicles Interaction With Visible Light Communication (VLC) M. A. Ilyas, M. B. Othman, S. M. Shah, Mas Fawzi Adv. Sci. Technol. Eng. Syst. J. 2(3), 210-216 (2017); View Description Analysis of Fractional-Order 2xn RLC Networks by Transmission Matrices Mahmut Ün, Manolya Ün Adv. Sci. Technol. Eng. Syst. J. 2(3), 217-220 (2017); View Description Fire extinguishing system in large underground garages Ivan Antonov, Rositsa Velichkova, Svetlin Antonov, Kamen Grozdanov, Milka Uzunova, Ikram El Abbassi Adv. Sci. Technol. Eng. Syst. J. 2(3), 221-226 (2017); View Description Directional Antenna Modulation Technique using A Two-Element Frequency Diverse Array Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 227-232 (2017); View Description Classifying region of interests from mammograms with breast cancer into BIRADS using Artificial Neural Networks Estefanía D. Avalos-Rivera, Alberto de J. Pastrana-Palma Adv. Sci. Technol. Eng. Syst. J. 2(3), 233-240 (2017); View Description Magnetically Levitated and Guided Systems Florian Puci, Miroslav Husak Adv. Sci. Technol. Eng. Syst. J. 2(3), 241-244 (2017); View Description Energy-Efficient Mobile Sensing in Distributed Multi-Agent Sensor Networks Minh T. Nguyen Adv. Sci. Technol. Eng. Syst. J. 2(3), 245-253 (2017); View Description Validity and efficiency of conformal anomaly detection on big distributed data Ilia Nouretdinov Adv. Sci. Technol. Eng. Syst. J. 2(3), 254-267 (2017); View Description S-Parameters Optimization in both Segmented and Unsegmented Insulated TSV upto 40GHz Frequency Juma Mary Atieno, Xuliang Zhang, HE Song Bai Adv. Sci. Technol. Eng. Syst. J. 2(3), 268-276 (2017); View Description Synthesis of Important Design Criteria for Future Vehicle Electric System Lisa Braun, Eric Sax Adv. Sci. Technol. Eng. Syst. J. 2(3), 277-283 (2017); View Description Gestural Interaction for Virtual Reality Environments through Data Gloves G. Rodriguez, N. Jofre, Y. Alvarado, J. Fernández, R. Guerrero Adv. Sci. Technol. Eng. Syst. J. 2(3), 284-290 (2017); View Description Solving the Capacitated Network Design Problem in Two Steps Meriem Khelifi, Mohand Yazid Saidi, Saadi Boudjit Adv. Sci. Technol. Eng. Syst. J. 2(3), 291-301 (2017); View Description A Computationally Intelligent Approach to the Detection of Wormhole Attacks in Wireless Sensor Networks Mohammad Nurul Afsar Shaon, Ken Ferens Adv. Sci. Technol. Eng. Syst. J. 2(3), 302-320 (2017); View Description Real Time Advanced Clustering System Giuseppe Spampinato, Arcangelo Ranieri Bruna, Salvatore Curti, Viviana D’Alto Adv. Sci. Technol. Eng. Syst. J. 2(3), 321-326 (2017); View Description Indoor Mobile Robot Navigation in Unknown Environment Using Fuzzy Logic Based Behaviors Khalid Al-Mutib, Foudil Abdessemed Adv. Sci. Technol. Eng. Syst. J. 2(3), 327-337 (2017); View Description Validity of Mind Monitoring System as a Mental Health Indicator using Voice Naoki Hagiwara, Yasuhiro Omiya, Shuji Shinohara, Mitsuteru Nakamura, Masakazu Higuchi, Shunji Mitsuyoshi, Hideo Yasunaga, Shinichi Tokuno Adv. Sci. Technol. Eng. Syst. J. 2(3), 338-344 (2017); View Description The Model of Adaptive Learning Objects for virtual environments instanced by the competencies Carlos Guevara, Jose Aguilar, Alexandra González-Eras Adv. Sci. Technol. Eng. Syst. J. 2(3), 345-355 (2017); View Description An Overview of Traceability: Towards a general multi-domain model Kamal Souali, Othmane Rahmaoui, Mohammed Ouzzif Adv. Sci. Technol. Eng. Syst. J. 2(3), 356-361 (2017); View Description L-Band SiGe HBT Active Differential Equalizers with Variable, Positive or Negative Gain Slopes Using Dual-Resonant RLC Circuits Yasushi Itoh, Hiroaki Takagi Adv. Sci. Technol. Eng. Syst. J. 2(3), 362-368 (2017); View Description Moving Towards Reliability-Centred Management of Energy, Power and Transportation Assets Kang Seng Seow, Loc K. Nguyen, Kelvin Tan, Kees-Jan Van Oeveren Adv. Sci. Technol. Eng. Syst. J. 2(3), 369-375 (2017); View Description Secure Path Selection under Random Fading Furqan Jameel, Faisal, M Asif Ali Haider, Amir Aziz Butt Adv. Sci. Technol. Eng. Syst. J. 2(3), 376-383 (2017); View Description Security in SWIPT with Power Splitting Eavesdropper Furqan Jameel, Faisal, M Asif Ali Haider, Amir Aziz Butt Adv. Sci. Technol. Eng. Syst. J. 2(3), 384-388 (2017); View Description Performance Analysis of Phased Array and Frequency Diverse Array Radar Ambiguity Functions Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 389-394 (2017); View Description Adaptive Discrete-time Fuzzy Sliding Mode Control For a Class of Chaotic Systems Hanene Medhaffar, Moez Feki, Nabil Derbel Adv. Sci. Technol. Eng. Syst. J. 2(3), 395-400 (2017); View Description Fault Tolerant Inverter Topology for the Sustainable Drive of an Electrical Helicopter Igor Bolvashenkov, Jörg Kammermann, Taha Lahlou, Hans-Georg Herzog Adv. Sci. Technol. Eng. Syst. J. 2(3), 401-411 (2017); View Description Computational Intelligence Methods for Identifying Voltage Sag in Smart Grid Turgay Yalcin, Muammer Ozdemir Adv. Sci. Technol. Eng. Syst. J. 2(3), 412-419 (2017); View Description A Highly-Secured Arithmetic Hiding cum Look-Up Table (AHLUT) based S-Box for AES-128 Implementation Ali Akbar Pammu, Kwen-Siong Chong, Bah-Hwee Gwee Adv. Sci. Technol. Eng. Syst. J. 2(3), 420-426 (2017); View Description Service Productivity and Complexity in Medical Rescue Services Markus Harlacher, Andreas Petz, Philipp Przybysz, Olivia Chaillié, Susanne Mütze-Niewöhner Adv. Sci. Technol. Eng. Syst. J. 2(3), 427-434 (2017); View Description Principal Component Analysis Application on Flavonoids Characterization Che Hafizah Che Noh, Nor Fadhillah Mohamed Azmin, Azura Amid Adv. Sci. Technol. Eng. Syst. J. 2(3), 435-440 (2017); View Description A Reconfigurable Metal-Plasma Yagi-Yuda Antenna for Microwave Applications Giulia Mansutti, Davide Melazzi, Antonio-Daniele Capobianco Adv. Sci. Technol. Eng. Syst. J. 2(3), 441-448 (2017); View Description Verifying the Detection Results of Impersonation Attacks in Service Clouds Sarra Alqahtani, Rose Gamble Adv. Sci. Technol. Eng. Syst. J. 2(3), 449-459 (2017); View Description Image Segmentation Using Fuzzy Inference System on YCbCr Color Model Alvaro Anzueto-Rios, Jose Antonio Moreno-Cadenas, Felipe Gómez-Castañeda, Sergio Garduza-Gonzalez Adv. Sci. Technol. Eng. Syst. J. 2(3), 460-468 (2017); View Description Segmented and Detailed Visualization of Anatomical Structures based on Augmented Reality for Health Education and Knowledge Discovery Isabel Cristina Siqueira da Silva, Gerson Klein, Denise Munchen Brandão Adv. Sci. Technol. Eng. Syst. J. 2(3), 469-478 (2017); View Description Intrusion detection in cloud computing based attack patterns and risk assessment Ben Charhi Youssef, Mannane Nada, Bendriss Elmehdi, Regragui Boubker Adv. Sci. Technol. Eng. Syst. J. 2(3), 479-484 (2017); View Description Optimal Sizing and Control Strategy of renewable hybrid systems PV-Diesel Generator-Battery: application to the case of Djanet city of Algeria Adel Yahiaoui, Khelifa Benmansour, Mohamed Tadjine Adv. Sci. Technol. Eng. Syst. J. 2(3), 485-491 (2017); View Description RFID Antenna Near-field Characterization Using a New 3D Magnetic Field Probe Kassem Jomaa, Fabien Ndagijimana, Hussam Ayad, Majida Fadlallah, Jalal Jomaah Adv. Sci. Technol. Eng. Syst. J. 2(3), 492-497 (2017); View Description Design, Fabrication and Testing of a Dual-Range XY Micro-Motion Stage Driven by Voice Coil Actuators Xavier Herpe, Matthew Dunnigan, Xianwen Kong Adv. Sci. Technol. Eng. Syst. J. 2(3), 498-504 (2017); View Description Self-Organizing Map based Feature Learning in Bio-Signal Processing Marwa Farouk Ibrahim Ibrahim, Adel Ali Al-Jumaily Adv. Sci. Technol. Eng. Syst. J. 2(3), 505-512 (2017); View Description A delay-dependent distributed SMC for stabilization of a networked robotic system exposed to external disturbances." Advances in Science, Technology and Engineering Systems Journal 2, no. 3 (June 2016): 513–19. http://dx.doi.org/10.25046/aj020366.

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Biran, Yahav, George Collins, Borky John M, and Joel Dubow. "Volume 2, Issue 3, Special issue on Recent Advances in Engineering Systems (Published Papers) Articles Transmit / Received Beamforming for Frequency Diverse Array with Symmetrical frequency offsets Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 1-6 (2017); View Description Detailed Analysis of Amplitude and Slope Diffraction Coefficients for knife-edge structure in S-UTD-CH Model Eray Arik, Mehmet Baris Tabakcioglu Adv. Sci. Technol. Eng. Syst. J. 2(3), 7-11 (2017); View Description Applications of Case Based Organizational Memory Supported by the PAbMM Architecture Martín, María de los Ángeles, Diván, Mario José Adv. Sci. Technol. Eng. Syst. J. 2(3), 12-23 (2017); View Description Low Probability of Interception Beampattern Using Frequency Diverse Array Antenna Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 24-29 (2017); View Description Zero Trust Cloud Networks using Transport Access Control and High Availability Optical Bypass Switching Casimer DeCusatis, Piradon Liengtiraphan, Anthony Sager Adv. Sci. Technol. Eng. Syst. J. 2(3), 30-35 (2017); View Description A Derived Metrics as a Measurement to Support Efficient Requirements Analysis and Release Management Indranil Nath Adv. Sci. Technol. Eng. Syst. J. 2(3), 36-40 (2017); View Description Feedback device of temperature sensation for a myoelectric prosthetic hand Yuki Ueda, Chiharu Ishii Adv. Sci. Technol. Eng. Syst. J. 2(3), 41-40 (2017); View Description Deep venous thrombus characterization: ultrasonography, elastography and scattering operator Thibaud Berthomier, Ali Mansour, Luc Bressollette, Frédéric Le Roy, Dominique Mottier Adv. Sci. Technol. Eng. Syst. J. 2(3), 48-59 (2017); View Description Improving customs’ border control by creating a reference database of cargo inspection X-ray images Selina Kolokytha, Alexander Flisch, Thomas Lüthi, Mathieu Plamondon, Adrian Schwaninger, Wicher Vasser, Diana Hardmeier, Marius Costin, Caroline Vienne, Frank Sukowski, Ulf Hassler, Irène Dorion, Najib Gadi, Serge Maitrejean, Abraham Marciano, Andrea Canonica, Eric Rochat, Ger Koomen, Micha Slegt Adv. Sci. Technol. Eng. Syst. J. 2(3), 60-66 (2017); View Description Aviation Navigation with Use of Polarimetric Technologies Arsen Klochan, Ali Al-Ammouri, Viktor Romanenko, Vladimir Tronko Adv. Sci. Technol. Eng. Syst. J. 2(3), 67-72 (2017); View Description Optimization of Multi-standard Transmitter Architecture Using Single-Double Conversion Technique Used for Rescue Operations Riadh Essaadali, Said Aliouane, Chokri Jebali and Ammar Kouki Adv. Sci. Technol. Eng. Syst. J. 2(3), 73-81 (2017); View Description Singular Integral Equations in Electromagnetic Waves Reflection Modeling A. S. Ilinskiy, T. N. Galishnikova Adv. Sci. Technol. Eng. Syst. J. 2(3), 82-87 (2017); View Description Methodology for Management of Information Security in Industrial Control Systems: A Proof of Concept aligned with Enterprise Objectives. Fabian Bustamante, Walter Fuertes, Paul Diaz, Theofilos Toulqueridis Adv. Sci. Technol. Eng. Syst. J. 2(3), 88-99 (2017); View Description Dependence-Based Segmentation Approach for Detecting Morpheme Boundaries Ahmed Khorsi, Abeer Alsheddi Adv. Sci. Technol. Eng. Syst. J. 2(3), 100-110 (2017); View Description Paper Improving Rule Based Stemmers to Solve Some Special Cases of Arabic Language Soufiane Farrah, Hanane El Manssouri, Ziyati Elhoussaine, Mohamed Ouzzif Adv. Sci. Technol. Eng. Syst. J. 2(3), 111-115 (2017); View Description Medical imbalanced data classification Sara Belarouci, Mohammed Amine Chikh Adv. Sci. Technol. Eng. Syst. J. 2(3), 116-124 (2017); View Description ADOxx Modelling Method Conceptualization Environment Nesat Efendioglu, Robert Woitsch, Wilfrid Utz, Damiano Falcioni Adv. Sci. Technol. Eng. Syst. J. 2(3), 125-136 (2017); View Description GPSR+Predict: An Enhancement for GPSR to Make Smart Routing Decision by Anticipating Movement of Vehicles in VANETs Zineb Squalli Houssaini, Imane Zaimi, Mohammed Oumsis, Saïd El Alaoui Ouatik Adv. Sci. Technol. Eng. Syst. J. 2(3), 137-146 (2017); View Description Optimal Synthesis of Universal Space Vector Digital Algorithm for Matrix Converters Adrian Popovici, Mircea Băbăiţă, Petru Papazian Adv. Sci. Technol. Eng. Syst. J. 2(3), 147-152 (2017); View Description Control design for axial flux permanent magnet synchronous motor which operates above the nominal speed Xuan Minh Tran, Nhu Hien Nguyen, Quoc Tuan Duong Adv. Sci. Technol. Eng. Syst. J. 2(3), 153-159 (2017); View Description A synchronizing second order sliding mode control applied to decentralized time delayed multi−agent robotic systems: Stability Proof Marwa Fathallah, Fatma Abdelhedi, Nabil Derbel Adv. Sci. Technol. Eng. Syst. J. 2(3), 160-170 (2017); View Description Fault Diagnosis and Tolerant Control Using Observer Banks Applied to Continuous Stirred Tank Reactor Martin F. Pico, Eduardo J. Adam Adv. Sci. Technol. Eng. Syst. J. 2(3), 171-181 (2017); View Description Development and Validation of a Heat Pump System Model Using Artificial Neural Network Nabil Nassif, Jordan Gooden Adv. Sci. Technol. Eng. Syst. J. 2(3), 182-185 (2017); View Description Assessment of the usefulness and appeal of stigma-stop by psychology students: a serious game designed to reduce the stigma of mental illness Adolfo J. Cangas, Noelia Navarro, Juan J. Ojeda, Diego Cangas, Jose A. Piedra, José Gallego Adv. Sci. Technol. Eng. Syst. J. 2(3), 186-190 (2017); View Description Kinect-Based Moving Human Tracking System with Obstacle Avoidance Abdel Mehsen Ahmad, Zouhair Bazzal, Hiba Al Youssef Adv. Sci. Technol. Eng. Syst. J. 2(3), 191-197 (2017); View Description A security approach based on honeypots: Protecting Online Social network from malicious profiles Fatna Elmendili, Nisrine Maqran, Younes El Bouzekri El Idrissi, Habiba Chaoui Adv. Sci. Technol. Eng. Syst. J. 2(3), 198-204 (2017); View Description Pulse Generator for Ultrasonic Piezoelectric Transducer Arrays Based on a Programmable System-on-Chip (PSoC) Pedro Acevedo, Martín Fuentes, Joel Durán, Mónica Vázquez, Carlos Díaz Adv. Sci. Technol. Eng. Syst. J. 2(3), 205-209 (2017); View Description Enabling Toy Vehicles Interaction With Visible Light Communication (VLC) M. A. Ilyas, M. B. Othman, S. M. Shah, Mas Fawzi Adv. Sci. Technol. Eng. Syst. J. 2(3), 210-216 (2017); View Description Analysis of Fractional-Order 2xn RLC Networks by Transmission Matrices Mahmut Ün, Manolya Ün Adv. Sci. Technol. Eng. Syst. J. 2(3), 217-220 (2017); View Description Fire extinguishing system in large underground garages Ivan Antonov, Rositsa Velichkova, Svetlin Antonov, Kamen Grozdanov, Milka Uzunova, Ikram El Abbassi Adv. Sci. Technol. Eng. Syst. J. 2(3), 221-226 (2017); View Description Directional Antenna Modulation Technique using A Two-Element Frequency Diverse Array Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 227-232 (2017); View Description Classifying region of interests from mammograms with breast cancer into BIRADS using Artificial Neural Networks Estefanía D. Avalos-Rivera, Alberto de J. Pastrana-Palma Adv. Sci. Technol. Eng. Syst. J. 2(3), 233-240 (2017); View Description Magnetically Levitated and Guided Systems Florian Puci, Miroslav Husak Adv. Sci. Technol. Eng. Syst. J. 2(3), 241-244 (2017); View Description Energy-Efficient Mobile Sensing in Distributed Multi-Agent Sensor Networks Minh T. Nguyen Adv. Sci. Technol. Eng. Syst. J. 2(3), 245-253 (2017); View Description Validity and efficiency of conformal anomaly detection on big distributed data Ilia Nouretdinov Adv. Sci. Technol. Eng. Syst. J. 2(3), 254-267 (2017); View Description S-Parameters Optimization in both Segmented and Unsegmented Insulated TSV upto 40GHz Frequency Juma Mary Atieno, Xuliang Zhang, HE Song Bai Adv. Sci. Technol. Eng. Syst. J. 2(3), 268-276 (2017); View Description Synthesis of Important Design Criteria for Future Vehicle Electric System Lisa Braun, Eric Sax Adv. Sci. Technol. Eng. Syst. J. 2(3), 277-283 (2017); View Description Gestural Interaction for Virtual Reality Environments through Data Gloves G. Rodriguez, N. Jofre, Y. Alvarado, J. Fernández, R. Guerrero Adv. Sci. Technol. Eng. Syst. J. 2(3), 284-290 (2017); View Description Solving the Capacitated Network Design Problem in Two Steps Meriem Khelifi, Mohand Yazid Saidi, Saadi Boudjit Adv. Sci. Technol. Eng. Syst. J. 2(3), 291-301 (2017); View Description A Computationally Intelligent Approach to the Detection of Wormhole Attacks in Wireless Sensor Networks Mohammad Nurul Afsar Shaon, Ken Ferens Adv. Sci. Technol. Eng. Syst. J. 2(3), 302-320 (2017); View Description Real Time Advanced Clustering System Giuseppe Spampinato, Arcangelo Ranieri Bruna, Salvatore Curti, Viviana D’Alto Adv. Sci. Technol. Eng. Syst. J. 2(3), 321-326 (2017); View Description Indoor Mobile Robot Navigation in Unknown Environment Using Fuzzy Logic Based Behaviors Khalid Al-Mutib, Foudil Abdessemed Adv. Sci. Technol. Eng. Syst. J. 2(3), 327-337 (2017); View Description Validity of Mind Monitoring System as a Mental Health Indicator using Voice Naoki Hagiwara, Yasuhiro Omiya, Shuji Shinohara, Mitsuteru Nakamura, Masakazu Higuchi, Shunji Mitsuyoshi, Hideo Yasunaga, Shinichi Tokuno Adv. Sci. Technol. Eng. Syst. J. 2(3), 338-344 (2017); View Description The Model of Adaptive Learning Objects for virtual environments instanced by the competencies Carlos Guevara, Jose Aguilar, Alexandra González-Eras Adv. Sci. Technol. Eng. Syst. J. 2(3), 345-355 (2017); View Description An Overview of Traceability: Towards a general multi-domain model Kamal Souali, Othmane Rahmaoui, Mohammed Ouzzif Adv. Sci. Technol. Eng. Syst. J. 2(3), 356-361 (2017); View Description L-Band SiGe HBT Active Differential Equalizers with Variable, Positive or Negative Gain Slopes Using Dual-Resonant RLC Circuits Yasushi Itoh, Hiroaki Takagi Adv. Sci. Technol. Eng. Syst. J. 2(3), 362-368 (2017); View Description Moving Towards Reliability-Centred Management of Energy, Power and Transportation Assets Kang Seng Seow, Loc K. Nguyen, Kelvin Tan, Kees-Jan Van Oeveren Adv. Sci. Technol. Eng. Syst. J. 2(3), 369-375 (2017); View Description Secure Path Selection under Random Fading Furqan Jameel, Faisal, M Asif Ali Haider, Amir Aziz Butt Adv. Sci. Technol. Eng. Syst. J. 2(3), 376-383 (2017); View Description Security in SWIPT with Power Splitting Eavesdropper Furqan Jameel, Faisal, M Asif Ali Haider, Amir Aziz Butt Adv. Sci. Technol. Eng. Syst. J. 2(3), 384-388 (2017); View Description Performance Analysis of Phased Array and Frequency Diverse Array Radar Ambiguity Functions Shaddrack Yaw Nusenu Adv. Sci. Technol. Eng. Syst. J. 2(3), 389-394 (2017); View Description Adaptive Discrete-time Fuzzy Sliding Mode Control For a Class of Chaotic Systems Hanene Medhaffar, Moez Feki, Nabil Derbel Adv. Sci. Technol. Eng. Syst. J. 2(3), 395-400 (2017); View Description Fault Tolerant Inverter Topology for the Sustainable Drive of an Electrical Helicopter Igor Bolvashenkov, Jörg Kammermann, Taha Lahlou, Hans-Georg Herzog Adv. Sci. Technol. Eng. Syst. J. 2(3), 401-411 (2017); View Description Computational Intelligence Methods for Identifying Voltage Sag in Smart Grid Turgay Yalcin, Muammer Ozdemir Adv. Sci. Technol. Eng. Syst. J. 2(3), 412-419 (2017); View Description A Highly-Secured Arithmetic Hiding cum Look-Up Table (AHLUT) based S-Box for AES-128 Implementation Ali Akbar Pammu, Kwen-Siong Chong, Bah-Hwee Gwee Adv. Sci. Technol. Eng. Syst. J. 2(3), 420-426 (2017); View Description Service Productivity and Complexity in Medical Rescue Services Markus Harlacher, Andreas Petz, Philipp Przybysz, Olivia Chaillié, Susanne Mütze-Niewöhner Adv. Sci. Technol. Eng. Syst. J. 2(3), 427-434 (2017); View Description Principal Component Analysis Application on Flavonoids Characterization Che Hafizah Che Noh, Nor Fadhillah Mohamed Azmin, Azura Amid Adv. Sci. Technol. Eng. Syst. J. 2(3), 435-440 (2017); View Description A Reconfigurable Metal-Plasma Yagi-Yuda Antenna for Microwave Applications Giulia Mansutti, Davide Melazzi, Antonio-Daniele Capobianco Adv. Sci. Technol. Eng. Syst. J. 2(3), 441-448 (2017); View Description Verifying the Detection Results of Impersonation Attacks in Service Clouds Sarra Alqahtani, Rose Gamble Adv. Sci. Technol. Eng. Syst. J. 2(3), 449-459 (2017); View Description Image Segmentation Using Fuzzy Inference System on YCbCr Color Model Alvaro Anzueto-Rios, Jose Antonio Moreno-Cadenas, Felipe Gómez-Castañeda, Sergio Garduza-Gonzalez Adv. Sci. Technol. Eng. Syst. J. 2(3), 460-468 (2017); View Description Segmented and Detailed Visualization of Anatomical Structures based on Augmented Reality for Health Education and Knowledge Discovery Isabel Cristina Siqueira da Silva, Gerson Klein, Denise Munchen Brandão Adv. Sci. Technol. Eng. Syst. J. 2(3), 469-478 (2017); View Description Intrusion detection in cloud computing based attack patterns and risk assessment Ben Charhi Youssef, Mannane Nada, Bendriss Elmehdi, Regragui Boubker Adv. Sci. Technol. Eng. Syst. J. 2(3), 479-484 (2017); View Description Optimal Sizing and Control Strategy of renewable hybrid systems PV-Diesel Generator-Battery: application to the case of Djanet city of Algeria Adel Yahiaoui, Khelifa Benmansour, Mohamed Tadjine Adv. Sci. Technol. Eng. Syst. J. 2(3), 485-491 (2017); View Description RFID Antenna Near-field Characterization Using a New 3D Magnetic Field Probe Kassem Jomaa, Fabien Ndagijimana, Hussam Ayad, Majida Fadlallah, Jalal Jomaah Adv. Sci. Technol. Eng. Syst. J. 2(3), 492-497 (2017); View Description Design, Fabrication and Testing of a Dual-Range XY Micro-Motion Stage Driven by Voice Coil Actuators Xavier Herpe, Matthew Dunnigan, Xianwen Kong Adv. Sci. Technol. Eng. Syst. J. 2(3), 498-504 (2017); View Description Self-Organizing Map based Feature Learning in Bio-Signal Processing Marwa Farouk Ibrahim Ibrahim, Adel Ali Al-Jumaily Adv. Sci. Technol. Eng. Syst. J. 2(3), 505-512 (2017); View Description A delay-dependent distributed SMC for stabilization of a networked robotic system exposed to external disturbances Fatma Abdelhedi, Nabil Derbel Adv. Sci. Technol. Eng. Syst. J. 2(3), 513-519 (2017); View Description Modelization of cognition, activity and motivation as indicators for Interactive Learning Environment Asmaa Darouich, Faddoul Khoukhi, Khadija Douzi Adv. Sci. Technol. Eng. Syst. J. 2(3), 520-531 (2017); View Description Homemade array of surface coils implementation for small animal magnetic resonance imaging Fernando Yepes-Calderon, Olivier Beuf Adv. Sci. Technol. Eng. Syst. J. 2(3), 532-539 (2017); View Description An Encryption Key for Secure Authentication: The Dynamic Solution Zubayr Khalid, Pritam Paul, Khabbab Zakaria, Himadri Nath Saha Adv. Sci. Technol. Eng. Syst. J. 2(3), 540-544 (2017); View Description Multi-Domain Virtual Network Embedding with Coordinated Link Mapping Shuopeng Li, Mohand Yazid Saidi, Ken Chen Adv. Sci. Technol. Eng. Syst. J. 2(3), 545-552 (2017); View Description Semantic-less Breach Detection of Polymorphic Malware in Federated Cloud." Advances in Science, Technology and Engineering Systems Journal 2, no. 3 (June 2017): 553–61. http://dx.doi.org/10.25046/aj020371.

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Houessou, Dorgelès. "Distinctions genrées et identités discursives dans la généricité du discours d’investiture: le cas de Kirchner, Roussef et Sirleaf." Revista Eletrônica de Estudos Integrados em Discurso e Argumentação, August 31, 2019, 3–27. http://dx.doi.org/10.17648/eidea-19-2301.

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L’arrière plan théorique de cette communication est l’analyse du discours. Le but visé est d’interroger sur un double plan méthodologique et notionnel les rapports entre les modalités formelles des distinctions genrées en sciences du langage et le genre spécifique du discours d’investiture en tant que discours politique de légitimation. Montrer les procédés de mise en œuvre discursive de la masculinité et de la féminité comme posture revient, dans un tel contexte de passation/réception du pouvoir politique, à relever les mécanismes par lesquels des identités génériques projettent un parcours ethotique en fonction des attentes sociologiques (mythes et stéréotypes) liées aux schèmes identitaires concernés. Il en est ainsi parce que les conditions de la construction de l’image de l’orateur résident dans la perception doxique préexistante au discours et simultanément dans l’acte de langage en tant que composante subjective élémentaire de celui-ci.
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TALEB BENDIAB, Nabila Soufi. "Une double discordance cardiaque complexe décompensée, à propos d’un cas et revue de la littérature." Journal de la faculté de médecine d'Oran 6, no. 2 (2022). http://dx.doi.org/10.51782/jfmo.v6i2.176.

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La double discordance est une cardiopathie congénitale complexe extrêmement rare, elle se caractérise par une discordance auriculo-ventriculaire suivie d’une autre discordance ventriculo-artérielle. Son diagnostic est posé généralement à l’âge adulte par des examens d’imagerie. Son pronostic dépend essentiellement des autres malformations congénitales cardiaques associées, des arythmies et des troubles de la conduction, ainsi que de la fonction systolique du ventricule droit en position systémique. Nous rapportons le cas d’un patient âgé de 23 ans, porteur d’une cardiopathie congénitale complexe cyanogène. Il s’agit d’une double discordance associée à une large communication interventriculaire sous aortique avec un shunt inversé et une hypoplasie de l’artère pulmonaire. Ce diagnostic a été confirmé par l’imagerie multimodale. Non opéré, le patient a vu son stade fonctionnel s’aggraver rapidement avec une dyspnée qui est passée d’un stade I à un stade III-IV de la New York Heart Association (NYHA), et apparition de signes hypoxiques et congestifs. A travers cette observation, nous avons précisé les caractéristiques anatomocliniques de cette cardiopathie congénitale complexe cyanogène, son exploration, ses options thérapeutiques, ainsi que le rôle péjoratif de son association avec d’autres malformations congénitales.
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Idrus, Ismatul N., Mohammad RI Faruque, Sabirin Abdullah, Mohammad T. Islam, Mayeen U. Khandaker, and Jamel Nebhen. "An octagonal split ring resonator-based double negative metamaterial for S-, X- and Ku-band applications." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, May 18, 2021, 146442072110171. http://dx.doi.org/10.1177/14644207211017155.

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This study aimed to produce a miniaturised double negative metamaterial with a lower resonance frequency. Therefore, a new combination of a multi-circular ring connected with octagonal shape ring metamaterial was developed on a 9 × 9 mm2 dielectric substrate material with a thickness of 1.6 mm, named the Flame Retardant 4 (FR-4). While the selected frequency ranged between 0 and 18 GHz for the unit and array metamaterial design. Numerical simulation was used for the design and analysis of the proposed metamaterial. A few analysis were performed to validate the performance of the new design including the analyses of the different dimensions of the substrate and varying widths of the split gaps. The proposed design structure manifested resonance frequencies at S, X and Ku-bands. The resonance frequency at S-band (3.31 GHz) and X-band (8.60 GHz) presented double-negative (DNG) metamaterial behaviour while X-band (11.93 GHz) and Ku-band (12.99 GHz) presented single-negative (SNG) medium characteristics. The simulation and measured results almost coincided with each other. The compactness of the proposed design was proven by the effective medium ratio (EMR) of 10.07. In conclusion, the miniaturised structure can be accredited for satellite communication and radar applications.
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Li, Feng, Chao Wu, Chunqiao Qiu, Quan Xu, Hongyu Zhu, Quan Li, and Zhengren Zhang. "Time-varying coding digital double-layered Huygens' metasurface for high-efficiency harmonic frequency conversion." Applied Physics Letters 124, no. 11 (March 11, 2024). http://dx.doi.org/10.1063/5.0196310.

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Time-varying metasurfaces offer an efficient means of controlling nonlinear harmonics by manipulating component geometries and modulating signals. This ability renders them valuable across various fields, such as wireless communication, radar sensing, and biological monitoring. However, most of the energy in time-varying metasurfaces is concentrated in the fundamental wave, as well as scattered at various harmonic orders, which reduces the energy efficiency at the desired harmonic. Existing approaches have employed time-varying coding digital metasurfaces to achieve efficient harmonic conversion but are primarily designed for reflection. Reflection-based designs require a feed source to excite the metasurface, which can cause certain shielding effects and limit their application in specific scenarios. Thus, designing transmissive time-varying coding digital metasurfaces for efficient harmonic conversion is currently an urgent problem that needs to be addressed. To solve this problem, this paper develops a time-varying coding digital double-layered Huygens' metasurface, which achieves efficient conversion of the desired transmitted harmonics. The unit structure of the metasurface consists of a pair of reverse-symmetric split rings located on the upper and lower sides of a dielectric substrate, enabling nearly non-reflective Huygens' resonance. Based on a continuous periodic phase modulation strategy, we achieved efficient conversion of transmitted harmonics by loading a time-varying voltage (phase) modulation signal with a 5-bit resolution bit width onto the designed double-layered Huygens' metasurface. This study presents a solution for designing a transmissive time-varying coding digital metasurface to achieve efficient conversion of harmonics, thereby enhancing the application capabilities of time-varying coding digital metasurfaces.
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Shaqiri, Shemsi, Shyqyri Haxha, Ian Flint, and Huseyin Ademgil. "Microwave photonics analog link based on two integrated D-DPMZM linearized signals and with eliminated odd harmonics and all IMD’s." Optical and Quantum Electronics 54, no. 7 (June 22, 2022). http://dx.doi.org/10.1007/s11082-022-03816-3.

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AbstractIn this paper a novel Microwave Photonics Analog Link (MPAL) system configuration based on two Dual-drive Dual-parallel Mach–Zehnder modulators (D-DPMZMs) and two Balanced Photo-Detectors (BPDs) is developed and system performance parameters are optimised for Radio over Fibre (RoF) high-speed transmissions. The Intermodulation Distortions (IMDs), as well as the harmonic distortions have been eliminated. The proposed linearization of RF signal configuration is double side banded in both D-DPMZM. A detailed mathematical system modelling is developed for the proposed RoF system configuration, benchmarked against newly generated system simulations, and implemented utilising particular device characteristics derived from experimental work. The proposed Microwave Photonic Link (MPL) system uses fewer RF shifters and is easier to implement in actual applications since all of the system's commercially available off-the-shelf components have already been experimentally demonstrated. The RF linearization for this configuration has been tested by introducing an additional RF signal, as well as phase and intensity errors in MZ branches. The proposed novel linearized MPAL with high spurious free dynamic range would have a great impact on future aerospace, radar, defense and satellite-to-ground downlink communication systems applications.
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Salama, F., H. Rafat, and H. Attiya. "Total edge irregularity strength for special types of square snake graphs." Soft Computing, December 22, 2023. http://dx.doi.org/10.1007/s00500-023-09447-4.

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AbstractOne of the extremely useful branches in graph theory is the labeling of a graph. Graph labeling plays a vital role in many fields such as database management, astronomy, coding theory, X-ray crystallography, communication network addressing and radar. A labeling of a connected simple graph $$G\left( {V,E} \right)$$ G V , E is a map that assign each element in $$G$$ G with a positive integer number. An edge irregular total $$\lambda^{\!\!\!\!\!-}$$ λ - -labeling is a map $$\beta :V\left( G \right) \cup E\left( G \right) \to \left\{ 1,2,3, \ldots ,\lambda^{\!\!\!\!\!-} \right\}$$ β : V G ∪ E G → 1 , 2 , 3 , … , λ - such that $$W_\beta \left( h \right) \ne W_\beta \left( z \right)$$ W β h ≠ W β z where $$W_\beta \left( h \right)$$ W β h and $$W_\beta \left( z \right)$$ W β z are weights for any two distinct edges. In this case, $$G$$ G has total edge irregularity strength (TEIS) if $$\lambda^{\!\!\!\!\!-}$$ λ - is minimum. In this paper, a new family of graphs called square snake graphs is defined and denoted by $$C_{4,n}$$ C 4 , n . Moreover, we define some related graphs of square snake graphs named double square snake graph $$D\left( {C_{4,n} } \right)$$ D C 4 , n , triple square snake graph $$T\left( {C_{4,n} } \right)$$ T C 4 , n and $$m$$ m -multiple square snake graph $$M_m \left( {C_{4,n} } \right)$$ M m C 4 , n . Finally, we determine TEIS for square snake graphs, double square snake graph, triple square snake graph and $$m$$ m -multiple square snake graph, which have many applications in coding theory and physics.
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Wang Jing-Li, Dong Xian-Chao, Yin-Liang, Yang Zhi-Xiong, Wan Hong-Dan, Chen He-Ming, and Zhong-Kai. "Terahertz dual-frequency multi-function coding metasurface based on vanadium dioxide." Acta Physica Sinica, 2023, 0. http://dx.doi.org/10.7498/aps.72.20222321.

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Terahertz (THz) wave has the advantages of low photon energy, high resolution, large communication bandwidth, etc. It has broad application prospects in security detection, high-resolution imaging, high-speed communication and other fields. In recent years, as a new way to control THz wave, THz metasurface functional devices have attracted extensive attention of researchers. In this paper, vanadium dioxide (VO<sub>2</sub>), a phase change material, is introduced into the coding metasurface. By regulating a circularly polarized wave and the orthogonal linearly polarized waves independently, a multi-function coding metasurface that can work at dual frequency points is obtained. It is composed of three layers. The top layeris a metal-VO<sub>2</sub> composite structure. The middle is a polyimide dielectric layer. The bottom is a metal ground. Under certain conditions, the double split ring resonator (DSRR) and the cross structure in the top layer are relatively independent. Designing the coding sequences for them separately can enable the coding metasurface to have multiple functions. The electromagnetic simulation software CST is used for modeling and simulation, and the results are as follows. When the VO<sub>2</sub> is in an insulating state and a circularly polarized wave at 0.34 THz is incident vertically, the characteristics of coding metasurface elements are mainly affected by the DSRR. The DSRR is rotated to meet the requirements of 3-bit Pancharatnam-Berry phase coding. The coding sequence is designed to generate vortex beams with the topological charge <i>l</i>=± 1 at a specific angle. The VO<sub>2</sub>’s state is changed to a metallic state, the DSRR can be equivalent to a metal ring. When the orthogonal linearly polarized waves at 0.74 THz are incident vertically, the characteristics of coding metasurface elements are mainly affected by the cross structure. Because of its anisotropy, four different 2-bit coding metasurface elements can be obtained respectively by changing the length of the horizontal arm and the vertical arm. The design of appropriate coding sequences can realize the radar cross section reduction of the x-polarized wave and the beam splitting of the y-polarized wave, and the results have broadband characteristics. Multiple coding sequences can be designed by specialcharacteristics of the coding metasurface, then various expected functions can be realized on the same metasurface. To a certain extent, it solves the problem of single function of ordinary metasurface devices, and paves a novel way to the development of THz multi-function systems.
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Williams, Deborah Kay. "Hostile Hashtag Takeover: An Analysis of the Battle for Februdairy." M/C Journal 22, no. 2 (April 24, 2019). http://dx.doi.org/10.5204/mcj.1503.

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We need a clear, unified, and consistent voice to effect the complete dismantling, the abolition, of the mechanisms of animal exploitation.And that will only come from what we say and do, no matter who we are.— Gary L. Francione, animal rights theoristThe history of hashtags is relatively short but littered with the remnants of corporate hashtags which may have seemed a good idea at the time within the confines of the boardroom. It is difficult to understand the rationale behind the use of hashtags as an effective communications tactic in 2019 by corporations when a quick stroll through their recent past leaves behind the much-derided #qantasluxury (Glance), #McDstories (Hill), and #myNYPD (Tran).While hashtags have an obvious purpose in bringing together like-minded publics and facilitating conversation (Kwye et al. 1), they have also regularly been the subject of “hashtag takeovers” by activists and other interested parties, and even by trolls, as the Ecological Society of Australia found in 2015 when their seemingly innocuous #ESA15 hashtag was taken over with pornographic images (news.com.au). Hashtag takeovers have also been used as a dubious marketing tactic, where smaller and less well-known brands tag their products with trending hashtags such as #iphone in order to boost their audience (Social Garden). Hashtags are increasingly used as a way for activists or other interested parties to disrupt a message. It is, I argue, predictable that any hashtag related to an even slightly controversial topic will be subject to some form of activist hashtag takeover, with varying degrees of success.That veganism and the dairy industry should attract such conflict is unsurprising given that the two are natural enemies, with vegans in particular seeming to anticipate and actively engage in the battle for the opposing hashtag.Using a comparative analysis of the #Veganuary and #Februdairy hashtags and how they have been used by both pro-vegan and pro-dairy social media users, this article illustrates that the enthusiastic and well-meaning social media efforts of farmers and dairy supporters have so far been unable to counteract those of well-organised and equally passionate vegan activists. This analysis compares tweets in the first week of the respective campaigns, concluding that organisations, industries and their representatives should be extremely wary of engaging said activists who are not only highly-skilled but are also highly-motivated. Grassroots, ideology-driven activism is a formidable opponent in any public space, let alone when it takes place on the outspoken and unstructured landscape of social media which is sometimes described as the “wild West” (Fitch 5) where anything goes and authenticity and plain-speaking is key (Macnamara 12).I Say Hashtag, You Say Bashtag#Februdairy was launched in 2018 to promote the benefits of dairy. The idea was first mooted on Twitter in 2018 by academic Dr Jude Capper, a livestock sustainability consultant, who called for “28 days, 28 positive dairy posts” (@Bovidiva; Howell). It was a response to the popular Veganuary campaign which aimed to “inspire people to try vegan for January and throughout the rest of the year”, a campaign which had gained significant traction both online and in the traditional media since its inception in 2014 (Veganuary). Hopes were high: “#Februdairy will be one month of dairy people posting, liking and retweeting examples of what we do and why we do it” (Yates). However, the #Februdairy hashtag has been effectively disrupted and has now entered the realm of a bashtag, a hashtag appropriated by activists for their own purpose (Austin and Jin 341).The Dairy Industry (Look Out the Vegans Are Coming)It would appear that the dairy industry is experiencing difficulties in public perception. While milk consumption is declining, sales of plant-based milks are increasing (Kaiserman) and a growing body of health research has questioned whether dairy products and milk in particular do in fact “do a body good” (Saccaro; Harvard Milk Study). In the 2019 review of Canada’s food guide, its first revision since 2007, for instance, the focus is now on eating plant-based foods with dairy’s former place significantly downgraded. Dairy products no longer have their own distinct section and are instead placed alongside other proteins including lentils (Pippus).Nevertheless, the industry has persevered with its traditional marketing and public relations activities, choosing to largely avoid addressing animal welfare concerns brought to light by activists. They have instead focused their message towards countering concerns about the health benefits of milk. In the US, the Milk Processing Education Program’s long-running celebrity-driven Got Milk campaign has been updated with Milk Life, a health focused campaign, featuring images of children and young people living an active lifestyle and taking part in activities such as skateboarding, running, and playing basketball (Milk Life). Interestingly, and somewhat inexplicably, Milk Life’s home page features the prominent headline, “How Milk Can Bring You Closer to Your Loved Ones”.It is somewhat reflective of the current trend towards veganism that tennis aces Serena and Venus Williams, both former Got Milk ambassadors, are now proponents for the plant-based lifestyle, with Venus crediting her newly-adopted vegan diet as instrumental in her recovery from an auto-immune disease (Mango).The dairy industry’s health focus continues in Australia, as well as the use of the word love, with former AFL footballer Shane Crawford—the face of the 2017 campaign Milk Loves You Back, from Lion Dairy and Drinks—focusing on reminding Australians of the reputed nutritional benefits of milk (Dawson).Dairy Australia meanwhile launched their Legendairy campaign with a somewhat different focus, promoting and lauding Australia’s dairy families, and with a message that stated, in a nod to the current issues, that “Australia’s dairy farmers and farming communities are proud, resilient and innovative” (Dairy Australia). This campaign could be perceived as a morale-boosting exercise, featuring a nation-wide search to find Australia’s most legendairy farming community (Dairy Australia). That this was also an attempt to humanise the industry seems obvious, drawing on established goodwill felt towards farmers (University of Cambridge). Again, however, this strategy did not address activists’ messages of suffering animals, factory farms, and newborn calves being isolated from their grieving mothers, and it can be argued that consumers are being forced to make the choice between who (or what) they care about more: animals or the people making their livelihoods from them.Large-scale campaigns like Legendairy which use traditional channels are of course still vitally important in shaping public opinion, with statistics from 2016 showing 85.1% of Australians continue to watch free-to-air television (Roy Morgan, “1 in 7”). However, a focus and, arguably, an over-reliance on traditional platforms means vegans and animal activists are often unchallenged when spreading their message via social media. Indeed, when we consider the breakdown in age groups inherent in these statistics, with 18.8% of 14-24 year-olds not watching any commercial television at all, an increase from 7% in 2008 (Roy Morgan, “1 in 7”), it is a brave and arguably short-sighted organisation or industry that relies primarily on traditional channels to spread their message in 2019. That these large-scale campaigns do little to address the issues raised by vegans concerning animal welfare leaves these claims largely unanswered and momentum to grow.This growth in momentum is fuelled by activist groups such as the People for the Ethical Treatment of Animals (PETA) who are well-known in this space, with 5,494,545 Facebook followers, 1.06 million Twitter followers, 973,000 Instagram followers, and 453,729 You Tube subscribers (People for the Ethical Treatment of Animals). They are also active on Pinterest, a visual-based platform suited to the kinds of images and memes particularly detrimental to the dairy industry. Although widely derided, PETA’s reach is large. A graphic video posted to Facebook on February 13 2019 and showing a suffering cow, captioned “your cheese is not worth this” was shared 1,244 times, and had 4.6 million views in just over 24 hours (People for the Ethical Treatment of Animals). With 95% of 12-24 year olds in Australia now using social networking sites (Statista), it is little wonder veganism is rapidly growing within this demographic (Bradbury), with The Guardian labelling the rise of veganism unstoppable (Hancox).Activist organisations are joined by prominent and charismatic vegan activists such as James Aspey (182,000 Facebook followers) and Earthling Ed (205,000 Facebook followers) in distributing information and images that are influential and often highly graphic or disturbing. Meanwhile Instagram influencers and You Tube lifestyle vloggers such as Ellen Fisher and FreeLee share information promoting vegan food and the vegan lifestyle (with 650,320 and 785,903 subscribers respectively). YouTube video Dairy Is Scary has over 5 million views (Janus) and What the Health, a follow-up documentary to Cowspiracy: The Sustainability Secret, promoting veganism, is now available on Netflix, which itself has 9.8 million Australian subscribers (Roy Morgan, “Netflix”). BOSH’s plant-based vegan cookbook was the fastest selling cookbook of 2018 (Chiorando).Additionally, the considerable influence of celebrities such as Miley Cyrus, Beyonce, Alicia Silverstone, Zac Efron, and Jessica Chastain, to name just a few, speaking publicly about their vegan lifestyle, encourages veganism to become mainstream and increases its widespread acceptance.However not all the dairy industry’s ills can be blamed on vegans. Rising costs, cheap imports, and other pressures (Lockhart, Donaghy and Gow) have all placed pressure on the industry. Nonetheless, in the battle for hearts and minds on social media, the vegans are leading the way.Qualitative research interviewing new vegans found converting to veganism was relatively easy, yet some respondents reported having to consult multiple resources and required additional support and education on how to be vegan (McDonald 17).Enter VeganuaryUsing a month, week or day to promote an idea or campaign, is a common public relations and marketing strategy, particularly in health communications. Dry July and Ocsober both promote alcohol abstinence, Frocktober raises funds for ovarian cancer, and Movember is an annual campaign raising awareness and funds for men’s health (Parnell). Vegans Matthew Glover and Jane Land were discussing the success of Movember when they raised the idea of creating a vegan version. Their initiative, Veganuary, urging people to try vegan for the month of January, launched in 2014 and since then 500,000 people have taken the Veganuary pledge (Veganuary).The Veganuary website is the largest of its kind on the internet. With vegan recipes, expert advice and information, it provides all the answers to Why go vegan, but it is the support offered to answer How to go vegan that truly sets Veganuary apart. (Veganuary)That Veganuary participants would use social media to discuss and share their experiences was a foregone conclusion. Twitter, Facebook, and Instagram are all utilised by participants, with the official Veganuary pages currently followed/liked by 159,000 Instagram followers, receiving 242,038 Facebook likes, and 45,600 Twitter followers (Veganuary). Both the Twitter and Instagram sites make effective use of hashtags to spread their reach, not only using #Veganuary but also other relevant hashtags such as #TryVegan, #VeganRecipes, and the more common #Vegan, #Farm, and #SaveAnimals.Februdairy Follows Veganuary, But Only on the CalendarCalling on farmers and dairy producers to create counter content and their own hashtag may have seemed like an idea that would achieve an overall positive response.Agricultural news sites and bloggers spread the word and even the BBC reported on the industry’s “fight back” against Veganuary (BBC). However the hashtag was quickly overwhelmed with anti-dairy activists mobilising online. Vegans issued a call to arms across social media. The Vegans in Australia Facebook group featured a number of posts urging its 58,949 members to “thunderclap” the Februdairy hashtag while the Project Calf anti-dairy campaign declared that Februdairy offered an “easy” way to spread their information (Sandhu).Februdairy farmers and dairy supporters were encouraged to tell their stories, sharing positive photographs and videos, and they did. However this content was limited. In this tweet (fig. 1) the issue of a lack of diverse content was succinctly addressed by an anti-Februdairy activist.Fig. 1: Content challenges. (#Februdairy, 2 Feb. 2019)MethodUtilising Twitter’s advanced search capability, I was able to search for #Veganuary tweets from 1 to 7 January 2019 and #Februdairy tweets from 1 to 7 February 2019. I analysed the top tweets provided by Twitter in terms of content, assessed whether the tweet was pro or anti Veganuary and Februdairy, and also categorised its content in terms of subject matter.Tweets were analysed to assess whether they were on message and aligned with the values of their associated hashtag. Veganuary tweets were considered to be on message if they promoted veganism or possessed an anti-dairy, anti-meat, or pro-animal sentiment. Februdairy tweets were assessed as on message if they promoted the consumption of dairy products, expressed sympathy or empathy towards the dairy industry, or possessed an anti-vegan sentiment. Tweets were also evaluated according to their clarity, emotional impact and coherence. The overall effectiveness of the hashtag was then evaluated based on the above criteria as well as whether they had been hijacked.Results and FindingsOverwhelmingly, the 213 #Veganuary tweets were on message. That is they were pro-Veganuary, supportive of veganism, and positive. The topics were varied and included humorous memes, environmental facts, information about the health benefits of veganism, as well as a strong focus on animals. The number of non-graphic tweets (12) concerning animals was double that of tweets featuring graphic or shocking imagery (6). Predominantly the tweets were focused on food and the sharing of recipes, with 44% of all pro #Veganuary tweets featuring recipes or images of food. Interestingly, a number of well-known corporations tweeted to promote their vegan food products, including Tesco, Aldi, Iceland, and M&S. The diversity of veganism is reflected in the tweets. Organisations used the hashtag to promote their products, including beauty and shoe products, social media influencers promoted their vegan podcasts and blogs, and, interestingly, the Ethiopian Embassy of the United Kingdom tweeted their support.There were 23 (11%) anti-Veganuary tweets. Of these, one was from Dr. Jude Capper, the founder of Februdairy. The others expressed support for farming and farmers, and a number were photographs of meat products, including sausages and fry-ups. One Australian journalist tweeted in favour of meat, stating it was yummy murder. These tweets could be described as entertaining and may perhaps serve as a means of preaching to the converted, but their ability to influence and persuade is negligible.Twitter’s search tool provided access to 141 top #Februdairy tweets. Of these 82 (52%) were a hijack of the hashtag and overtly anti-Februdairy. Vegan activists used the #Februdairy hashtag to their advantage with most of their tweets (33%) featuring non-graphic images of animals. They also tweeted about other subject matters, including environmental concerns, vegan food and products, and health issues related to dairy consumption.As noted by the activists (see fig. 1 above), most of the pro-Februdairy tweets were images of milk or dairy products (41%). Images of farms and farmers were the next most used (26%), followed by images of cows (17%) (see fig. 2). Fig. 2: An activist makes their anti-Februdairy point with a clear, engaging image and effective use of hashtags. (#Februdairy, 6 Feb. 2019)The juxtaposition between many of the tweets was also often glaring, with one contrasting message following another (see fig. 3). Fig. 3: An example of contrasting #Februdairy tweets with an image used by the activists to good effect, making their point known. (#Februdairy, 2 Feb. 2019)Storytelling is a powerful tool in public relations and marketing efforts. Yet, to be effective, high-quality content is required. That many of the Februdairy proponents had limited social media training was evident; images were blurred, film quality was poor, or they failed to make their meaning clear (see fig. 4). Fig. 4: A blurred photograph, reflective of some of the low-quality content provided by Februdairy supporters. (#Februdairy, 3 Feb. 2019)This image was tweeted in support of Februdairy. However the image and phrasing could also be used to argue against Februdairy. We can surmise that the tweeter was suggesting the cow was well looked after and seemingly content, but overall the message is as unclear as the image.While some pro-Februdairy supporters recognised the need for relevant hashtags, often their images were of a low-quality and not particularly engaging, a requirement for social media success. This requirement seems to be better understood by anti-Februdairy activists who used high-quality images and memes to create interest and gain the audience’s attention (see figs. 5 and 6). Fig. 5: An uninspiring image used to promote Februdairy. (#Februdairy, 6 Feb. 2019) Fig. 6: Anti-Februdairy activists made good use of memes, recognising the need for diverse content. (#Februdairy, 3 Feb. 2019)DiscussionWhat the #Februdairy case makes clear, then, is that in continuing its focus on traditional media, the dairy industry has left the battle online to largely untrained, non-social media savvy supporters.From a purely public relations perspective, one of the first things we ask our students to do in issues and crisis communication is to assess the risk. “What can hurt your organisation?” we ask. “What potential issues are on the horizon and what can you do to prevent them?” This is PR101 and it is difficult to understand why environmental scanning and resulting action has not been on the radar of the dairy industry long before now. It seems they have not fully anticipated or have significantly underestimated the emerging issue that public perception, animal cruelty, health concerns, and, ultimately, veganism has had on their industry and this is to their detriment. In Australia in 2015–16 the dairy industry was responsible for 8 per cent (A$4.3 billion) of the gross value of agricultural production and 7 per cent (A$3 billion) of agricultural export income (Department of Agriculture and Water Resources). When such large figures are involved and with so much at stake, it is hard to rationalise the decision not to engage in a more proactive online strategy, seeking to engage their publics, including, whether they like it or not, activists.Instead there are current attempts to address these issues with a legislative approach, lobbying for the introduction of ag-gag laws (Potter), and the limitation of terms such as milk and cheese (Worthington). However, these measures are undertaken while there is little attempt to engage with activists or to effectively counter their claims with a widespread authentic public relations campaign, and reflects a failure to understand the nature of the current online environment, momentum, and mood.That is not to say that the dairy industry is not operating in the online environment, but it does not appear to be a priority, and this is reflected in their low engagement and numbers of followers. For instance, Dairy Australia, the industry’s national service body, has a following of only 8,281 on Facebook, 6,981 on Twitter, and, crucially, they are not on Instagram. Their Twitter posts do not include hashtags and unsurprisingly they have little engagement on this platform with most tweets attracting no more than two likes. Surprisingly they have 21,013 subscribers on YouTube which featured professional and well-presented videos. This demonstrates some understanding of the importance of effective storytelling but not, as yet, trans-media storytelling.ConclusionSocial media activism is becoming more important and recognised as a legitimate voice in the public sphere. Many organisations, perhaps in recognition of this as well as a growing focus on responsible corporate behaviour, particularly in the treatment of animals, have adjusted their behaviour. From Unilever abandoning animal testing practices to ensure Dove products are certified cruelty free (Nussbaum), to Domino’s introducing vegan options, companies who are aware of emerging trends and values are changing the way they do business and are reaping the benefits of engaging with, and catering to, vegans. Domino’s sold out of vegan cheese within the first week and vegans were asked to phone ahead to their local store, so great was the demand. From their website:We knew the response was going to be big after the demand we saw for the product on social media but we had no idea it was going to be this big. (Domino’s Newsroom)As a public relations professional, I am baffled by the dairy industry’s failure to adopt a crisis-based strategy rather than largely rely on the traditional one-way communication that has served them well in the previous (golden?) pre-social media age. However, as a vegan, persuaded by the unravelling of the happy cow argument, I cannot help but hope this realisation continues to elude them.References@bovidiva. “Let’s Make #Februdairy Happen This Year. 28 Days, 28 Positive #dairy Posts. From Cute Calves and #cheese on Crumpets, to Belligerent Bulls and Juicy #beef #burgers – Who’s In?” Twitter post. 15 Jan. 2018. 1 Feb. 2019 <https://twitter.com/bovidiva/status/952910641840447488?lang=en>.Austin, Lucinda L., and Yan Jin. Social Media and Crisis Communication. 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