Готові списки джерел за темами / GREEN CIRCUIT

Добірка наукової літератури з теми "GREEN CIRCUIT"

Автор: Grafiati
Опубліковано: 11 вересня 2023

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Статті в журналах з теми "GREEN CIRCUIT"

1

Carmo, Andréa de Araújo do, and Kelly Fernanda de Sousa Santos. "Transforming the University into an Environmental Space." IOP Conference Series: Earth and Environmental Science 1194, no. 1 (July 1, 2023): 012034. http://dx.doi.org/10.1088/1755-1315/1194/1/012034.

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Abstract The Environmental Management Superintendence of the Maranhão State University, which works its Environmental Management System through the Environmental Agenda in Public Administration, education for sustainability is being developed continuously and based on A3P since 2015, in all its six axes. In the axis, Awareness and Training of Servants, the opportunity arises to raise awareness environmental issues not only the academic community, but also society as a whole. Through the development of the Green Room Circuit Project, which has been under development since 2018 at the university, the objective was to describe the actions carried out in the year 2021 and to analyze the environmental perceptions of the public after remotely participating in the Green Room Circuit at the Paulo VI Campus. The Circuit consists of five dynamic and successive stages, where lectures corresponding to the contents that would be worked on in each stage were remotely applied. In 2021, due to the pandemic, the Green Room Circuit returned to activities in May, remotely. Fourteen circuits were carried out during the period from May to December, between the different levels of education, 29% of the elementary level, 64% of the secondary level and 7% of the technical level. The activities developed were thematic lectures on: composting, sustainable actions, fungi, agroecological trails, conservation of snakes, mammals and endangered animals. From the public, 580 visitors participated, being 97% students and 3% teachers. The Green Room Circuit on the Paulo VI Campus, education schools in the state of Maranhão has gained an alternative place to know and experience environmental education in an articulated way beyond the classroom, as well as, in the approximation and interaction between basic and higher education system.
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2

Zhang, Feng Ying, and Yun Hua Gao. "Study on Green Gas Data Detection System." Advanced Materials Research 722 (July 2013): 322–27. http://dx.doi.org/10.4028/www.scientific.net/amr.722.322.

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This paper describes a wireless gas data detection system, based on CC1010 MCU as the core controller design measurement circuit of indoor air quality. IF in the air pollutants such as smokes and doors, TGS gas sensor sensitive to perceived pollutants transferred to the receiving device through the wireless function after CC1010 MCU treatment analysis. The system has the function of wireless data transmission, small size, high sensitivity, good stability, low cost, long life and other advantages of the peripheral circuits required little devices can be widely used in enclosed spaces such as indoor, automobile air pollution detection.
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3

Bastos, A. R. N., A. Shahpari, E. Rodríguez-Castellón, M. Lima, P. S. André, and R. A. S. Ferreira. "Green photonics integrated circuit for NGOA coherent receivers." Optics & Laser Technology 115 (July 2019): 222–28. http://dx.doi.org/10.1016/j.optlastec.2019.02.018.

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4

Marinova, Galia, and Zdravka Tchobanova. "Circuit Design for Green Communications – Methods, Tools and Examples." Spring 2017 5, no. 2 (May 1, 2017): 1–11. http://dx.doi.org/10.33107/ijbte.2017.5.2.01.

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The paper makes an overview of the existing methods applied for circuit design with low power consumption objective. It considers Computer-Aided Design (CAD) tools and modules for power consumption estimation at the design stage. For analog and mixed analog-digital circuit design, the power estimation options in ORCAD Design Suit with PSpice and Analog Filter Wizard are studied. For digital communication systems the study covers the power estimation, analysis and optimization in ISE and Vivado systems, Xilinx Power Estimator (XPE) tool and spreadsheet, the XPower Analyzer, as well as similar tools proposed by ALTERA - PowerPlay Early Power Estimator and QUARTUS II Power Play Power Analyzer. Two examples are developed: Power consumption estimation of a Universal Software Radio Peripheral (USRP)-based communication system design, based on datasheets and software energy monitoring tools, and power consumption estimation of a Kasami pseudo-random sequence generator circuit design on FPGA using Vivado.
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5

Wan, Lin Sheng, Shu Sheng Yang, Li Fu Zhao, and Hong Chao Li. "The Technology Progress and Development of APT Green Smelting in China." Advanced Materials Research 550-553 (July 2012): 682–86. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.682.

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In the paper, the four core technologies "low cost and efficient decomposition," "APT property control", "fuzzy exchange and super desorption," "liquid、gas efficient closed-circuit" in Zhangyuan Tungsten Co.,Ltd in the past 20 years are elaborated in all aspects，and the research of wolframite and scheelite closed-circuit smelting process and zero emission technology are also introduced
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6

Hower, Haisen, Tamrin, Filli Pratama, and Hersyamsi. "Performance of primrose willow (Ludwigia peruviana) as a photosensitizer in dye-sensitized solar cell (DSSC)." IOP Conference Series: Earth and Environmental Science 1025, no. 1 (May 1, 2022): 012015. http://dx.doi.org/10.1088/1755-1315/1025/1/012015.

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Abstract Natural dyes have been extracted from leaves (green) and flowers (yellow) of primrose willow (Ludwigia peruviana) and were used as a photosensitizer of dye-sensitized solar cell (DSSC). The result of this research showed that absorption peaks of leaf extract were located at 420nm and 665nm. Open-circuit voltage, short-circuit current, and power conversion efficiency of natural green materials were obtained at 580mV, 0.0067mA, and 0.52%, respectively. Bandgap, absorbance coefficient and field factor values were around 2.96eV and 1.87eV, 2.58k.m-1 and 1.63k.m-1 and 0.2196, respectively. However, absorption peak of flower extract was located at 450nm. Open-circuit voltage, short-circuit current, and power conversion efficiency of flowers were obtained at 466mV, 0.0089mA, and 0.488%, respectively. Bandgap, absorbance coefficient, and field factor values were discovered at 2.76eV, 2.41 k.m-1, 0.1722 respectively. To sum up, primrose willow has a potential as a source of DSSC photosensitizer. Its rapid growth will become a prospective source of natural dye.
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7

Kwon, Oh-Sung, Jin-Hyo Kim, and Jung-Hwa Ra. "Landscape Ecological Analysis of Green Network in Urban Area Using Circuit Theory and Least-Cost Path." Land 10, no. 8 (August 13, 2021): 847. http://dx.doi.org/10.3390/land10080847.

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Quantitative securing of green space in already developed cities has many practical limitations due to socio-economic limitations. Currently, South Korea is planning a green network to secure and inject effective green space, but it is difficult to reflect it in the actual space plan due to the abstract plan. This study utilizes circuit theory and least-cost path methods for presenting a green network that is objectified and applicable to spatial planning. First, an analysis of the Least-cost Path revealed 69 least-cost paths between 43 core green areas of the study site. Most least-cost paths have been identified as passing through small green areas and streams in the city. Using the circuit theory, it was also possible to distinguish areas other than least-cost paths from areas with high potential for development, areas where target species are concentrated within corridors. In particular, areas with relatively high green network improvement effects were derived within and around corridors. This study is most significant in establishing and evaluating existing urban green networks, overcoming the limitations discussed at the linear level and expanding to the area level. To increase the utilization of this study in the future, field surveys and monitoring studies on target species need to be supplemented.
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8

Shao, Z., A. C. Puche, E. Kiyokage, G. Szabo, and M. T. Shipley. "Two GABAergic Intraglomerular Circuits Differentially Regulate Tonic and Phasic Presynaptic Inhibition of Olfactory Nerve Terminals." Journal of Neurophysiology 101, no. 4 (April 2009): 1988–2001. http://dx.doi.org/10.1152/jn.91116.2008.

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Olfactory nerve axons terminate in olfactory bulb glomeruli forming excitatory synapses onto the dendrites of mitral/tufted (M/T) and juxtaglomerular cells, including external tufted (ET) and periglomerular (PG) cells. PG cells are heterogeneous in neurochemical expression and synaptic organization. We used a line of mice expressing green fluorescent protein under the control of the glutamic acid decarboxylase 65-kDa gene (GAD65+) promoter to characterize a neurochemically identified subpopulation of PG cells by whole cell recording and subsequent morphological reconstruction. GAD65+ GABAergic PG cells form two functionally distinct populations: 33% are driven by monosynaptic olfactory nerve (ON) input (ON-driven PG cells), the remaining 67% receive their strongest drive from an ON→ET→PG circuit with no or weak monosynaptic ON input (ET-driven PG cells). In response to ON stimulation, ON-driven PG cells exhibit paired-pulse depression (PPD), which is partially reversed by GABAB receptor antagonists. The ON→ET→PG circuit exhibits phasic GABAB-R-independent PPD. ON input to both circuits is under tonic GABAB-R-dependent inhibition. We hypothesize that this tonic GABABR-dependent presynaptic inhibition of olfactory nerve terminals is due to autonomous bursting of ET cells in the ON→ET→PG circuit, which drives tonic spontaneous GABA release from ET-driven PG cells. Both circuits likely produce tonic and phasic postsynaptic inhibition of other intraglomerular targets. Thus olfactory bulb glomeruli contain at least two functionally distinct GABAergic circuits that may play different roles in olfactory coding.
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9

Shi, Xuemin, and Mingzhou Qin. "Research on the Optimization of Regional Green Infrastructure Network." Sustainability 10, no. 12 (December 6, 2018): 4649. http://dx.doi.org/10.3390/su10124649.

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With the rapid rate of urbanization, green infrastructure land is increasingly being converted to urban construction land, and the fragmentation of regional green infrastructure (GI) networks is intensifying. The connectivity of a GI network is of paramount importance for maintaining both regional biodiversity and regional ecosystem service capacity, among others. In this paper, an innovative approach to planning a GI network is presented. The proposed approach is based on the Morphological Spatial Pattern Analysis (MSPA) method, minimum path method, and circuit theory. Using the Zhengzhou–Kaifeng metropolitan area in China as a case study, we argue that the combination of the MSPA method and circuit theory can more fully and comprehensively identify the components of a GI network and its key areas. The methodology consists of three steps: (i) Identifying the cores and bridges of the GI by the MSPA method based on land use data, followed by determining the hubs of the GI network by assessing the connectivity of the core area; (ii) establishing potential connecting corridors between hubs by the minimum path method; (iii) identifying the “pinch point” area of the potential connecting corridors based on current density by applying circuit theory. This approach not only makes identification of the “hubs” and “links” in the green infrastructure network more scientific and comprehensive, but it also further identifies “pinch point” areas of the connecting corridors that require priority protection or recovery. The research results can be used as a practical reference for urban planners when planning urban land use.
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10

Hou, Jue, Minsu Liu, Huacheng Zhang, Yanlin Song, Xuchuan Jiang, Aibing Yu, Lei Jiang, and Bin Su. "Healable green hydrogen bonded networks for circuit repair, wearable sensor and flexible electronic devices." Journal of Materials Chemistry A 5, no. 25 (2017): 13138–44. http://dx.doi.org/10.1039/c7ta03100a.

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Дисертації з теми "GREEN CIRCUIT"

1

Sato, Ken-ichi. "Optical Technologies that Enable Green Networks." IEEE, 2011. http://hdl.handle.net/2237/14453.

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2

Ozkal, Piroglu Sefika. "Analysis Of Coupled Lines In Microwave Printed Circuit Elements." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12609047/index.pdf.

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Full wave analysis of microstrip lines at microwave frequencies is performed by using method of moments in conjunction with closed-form spatial domain Green&rsquo
s functions. The Green&rsquo
s functions are in general Sommerfeld-type integrals which are computationally expensive. To improve the efficiency of the technique, Green&rsquo
s functions are approximated by their closed-forms. Microstrip lines are excited by arbitrarily located current sources and are terminated by complex loads at both ends. Current distributions over microstrip lines are represented by rooftop basis functions. At first step, the current distribution over a single microstrip line is calculated. Next, the calculation of the current distributions over coupled microstrip lines is performed. The technique is then, applied to directional couplers. Using the current distributions obtained by the analysis, the scattering parameters of the structures are evaluated by using Prony&rsquo
s method. The results are compared with the ones gathered by using simulation software tools, CNL/2&trade
and Agilent Advanced Design System&trade
(ADS).
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3

Tueros, Farfán Felipe Gonzalo. "Desarrollo de un Circuito Genético Sintético Conformado por el Gen de la Proteína Verde Fluorescente (GFP) y el Promotor psp de Escherichia coli." Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/838.

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El aumento de la actividad minera en el Perú hace necesario el desarrollo de tecnologías rápidas y económicas de detección de contaminantes para su monitoreo y control. Implementando conocimientos de biología molecular y de la regulación génica podemos construir un circuito genético sintético que posibilite el monitoreo de sustancia toxicas que generen estrés oxidativo como son los compuestos cianurados. El objetivo de esta investigación es desarrollar un circuito genético sintético conformado por el promotor de la proteína del shock por fagos (psp) de Escherichia coli y las secuencia codificante del gen de la proteína verde fluorescente (GFP). La construcción de dicho circuito se logró usando estrategias de clonamiento por topoisomerasas y clonamiento clásico con enzimas de restricción, se usó la reacción en cadena de la polimerasa (PCR) para confirmar que todos los segmentos del circuito estén presentes en el vector. Los estudios preliminares de la actividad del nuevo circuito se realizaron transformando genéticamente células competentes de E. coli. La observación de dichas bacterias muestra una expresión de GFP continua, lo que indica que el circuito sintético está siendo activado sin estar en presencia de agentes de estrés oxidativo, lo que suponía una posible interacción con otros sistemas de regulación de estrés en la célula. Due to the increase of mining activity in Peru new technologies that can detect and monitor hazardous pollutants in a faster and cheaper way must be developed. Implementing molecular biology knowledge about genetic regulation we are able to construct a synthetic genetic circuit that can allow the monitoring of toxic substances that generate oxidative stress such us cyanide compounds. The objective of this research is to develop a synthetic genetic circuit from the promoter of the phage shock protein operon from E. coli and the complementary DNA of the green fluorescent gene (GFP). The construction of the circuit was achieved using classic cloning strategies with restriction enzymes and also more advanced strategies such us topoisomerase cloning, the polymerase chain reaction (PCR) was used to confirm the presence of all the desire segments in the vector. Preliminary studies of the circuit activity were carried out by genetically transforming competent E. coli cells. The observation of the bacteria shows a continuous expression of GFP without any inducer, this indicates that the synthetic circuit is being activated through a possible interaction with other stress response pathway.
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4

CURCURACI, ELEONORA. "Production of high value added nutraceuticals in a multi-trophic aquaculture system within a closed circuit marine hatchery (NUTRAQUA)." Doctoral thesis, Università degli Studi di Palermo, 2022. https://hdl.handle.net/10447/561285.

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5

Gómez, Núñez Alberto. "On the experimental and theoretical studies of ZnO precursors: towards Green Chemistry." Doctoral thesis, Universitat de Barcelona, 2018. http://hdl.handle.net/10803/481979.

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Although an extensive number of investigators, during the arise of this printed materials technology, were devoted to make very interesting discoveries concerning the most used sol-gel precursor to thermally produce ZnO, the motives for which the ZnO material is formed in a certain way from some certain initial conditions is not yet well understood. The first effort carried out was to solve the crystal structure, never reported before, arising from the mixture between the zinc salt (Zinc acetate dihydrate) and the typical stabilizer used (Ethanolamine). This crystal structure was then compared with the molecular models designed and optimized by means of simulations. Simulationes were also useful in the study of the stability of this precursor and explaining the experimental results on its degradation in presence of light and CO2. Regarding the ZnO formation from the precursor’s thermal decomposition, it could be demonstrated the reason why the final ZnO was having traces of nitrogen at high temperatures. In addition, the theory regarding the specimens arising when the precursor is being degraded was also validated. Nevertheless, the presence of nitrogen at high temperatures as well as the toxic species that were evolving from the precursor when decomposing were a serious matter to confront. The aim of the next study was to investigate the substituent effects in this nitrogen-based ZnO precursor. To do so, up to seven aminoalcohols were used in order to study the dependence of rigidity on the stability and the decomposition process of the precursor. Experiments confirmed that the use of any of the aliphatic aminoalcohols in the precursor produce high stability comparing to those using aromatic aminoalcohols. They bolstered also the conclusion that the aminoalcohol’s rigidity plays and important role. It was additionally confirmed that the use of flexible aromatic stabilizers could be counterproductive, regarding the poor stability and the ZnO purity, while the aliphatic-based aminoalcohols provide better performances. Simulations were useful to comparatively study these different aminoalcohols in terms of stability and molecular dynamics at different temperatures. Dynamic simulations at different temperatures provided conclusive evidences on the nitrogen prevalence in the precursor even at high temperatures, suggesting that the Zn-N bond has effects on the thermal decomposition. For that reason, additives containing nitrogen are not the best solution to stabilize the metal and to produce pure ZnO (or at least with control on the contamination) at the same time. The next focused was on the desire to increase the number of Zn-O (weaker) interactions at the expense of eliminate the Zn-N bonds (stronger) using the so-popular Green Chemistry. Up to five ZnO precursors were synthesised following these principles, solving their crystal structure and studying their thermal decomposition. In order to increase the stability of the transition metal in the precursor, it was decided to resort to natural occurring carboxylic acids such as salicylic, citric, succinic and lactic acids. Thermal analysis found decomposition processes lasting ca. 150 C less than the required temperature for nitrogen-based precursors. Furthermore, these decomposition processes consisted of cleaner steps and purer ZnO with a lower temperature. Two of the five precursors were chosen, taking into account their delay in synthesizing and their solubility in common solvents (water and ethanol), to compare the behaviour of inks based on these precursors with the ones based on nitrogen compounds from the previous study. Continuous and homogeneous films of highly pure ZnO were obtained at lower temperatures adjusting the dwell time at the maximum temperature as well as the heating rate. At this point, there was only one proposal to make: the addition of new properties to those already existing in this ZnO. The addition of properties between two metals, well-known in Chemistry, is called molecular hybridization. Thus, the objective of this work was to synthesize an heteropolymetallic precursor that, through thermal decomposition, could generate the Franklinite / ZnO tandem with a variable iron content at will by controlling the atmosphere in which this precursor is decomposing.
La combinación de acetato de zinc y etanolamina conforma el precursor de sol-gel más utilizado para la producción de ZnO con fines de electrónica impresa. Aunque las propiedades de tinta basadas en precursores se han reportado ampliamente, las razones por las que el material de ZnO se forma de cierta manera a partir de condiciones iniciales específicas todavía no se conocen bien. En el presente trabajo, la estructura de la mezcla se caracteriza experimentalmente y se compara con los modelos moleculares optimizados mediante simulaciones. Además, se ha demostrado tanto los procesos que llevan a su degradación a temperatura ambiente como la descripción del proceso de descomposición indica efectos de sustituyentes importantes en este precursor basado en nitrógeno, que se analizan mejor comparando varios amino-alcoholes con diferentes sustituciones de radicales. La falta de control sobre los efectos de estos amino-alcoholes en el material final hace deseable aumentar el número de interacciones Zn-O (más débiles) a expensas de eliminar los enlaces Zn-N (más intensos). En consecuencia, se han diseñado nuevos precursores sobre la base de la Química verde recurriendo para ello a ácidos carboxílicos naturales. Se describen aquí sus estructuras cristalinas y procesos de descomposición térmica, que consisten en pasos más limpios y en la producción de un ZnO más puro a temperaturas más bajas que cuando se usan amino-alcoholes para estabilizar el metal Zn (II). Al agregar solventes comunes (agua y etanol), las tintas obtenidas muestran claras mejoras para las tecnologías de impresión basadas en precursores de ZnO. Como último estudio, se procedió a la incorporación de un segundo metal en este tipo de precursores, el hierro, con el fin de estudiar la conveniencia en la disposición de dos metales que, en función de la atmosfera en la que se descomponga el precursor, generen una proporción controlada de Franklinita (conocida por sus propiedades magnéticas) con respecto a la proporción de ZnO. Un estudio futuro más detallado sobre esta Franklinita podría, incluso, detallar las condiciones en las que encontrar la proporción de Fe(II)/Fe(III), y por tanto su capacidad magnética, deseada para cada fin.
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6

Boutar, Abdelghafour. "Contribution au développement de modèles circuits pour l’étude de couplages électromagnétiques à l’intérieur d’enceintes métalliques." Thesis, Limoges, 2014. http://www.theses.fr/2014LIMO0040/document.

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La prédiction du couplage d’interférences électromagnétiques avec les systèmes électroniques sensibles situés dans des enceintes blindées est devenue une nécessité dans le domaine de la compatibilité électromagnétique (CEM) des systèmes complexes. L’étude du couplage d’un champ ÉM avec et à l’intérieur de l’enceinte d’un équipement électronique a été réalisée antérieurement en utilisant des méthodes numériques et analytiques. Le travail de recherche présenté tout au long de ce document de thèse à pour but d’apporter une contribution à une meilleure compréhension des modèles analytiques permettant d’évaluer rapidement les niveaux de couplages induits sur un équipement électronique, en représentant celui-ci sous forme d’une enceinte métallique qui contient des monopôles, des dipôles, des plans de masse représentatifs de cartes et des lignes de transmissions. Après avoir établi le modèle physique de la fonction de Green (FG) relative à une cavité rectangulaire, la première partie à été consacrée à l’étude du couplage ÉM à l’intérieur d’une enceinte métallique rectangulaire en employant les modèles ILCM (Intermediat Level Circuit Model). Dans la deuxième partie de ce document, nous avons exploité le modèle ILCM pour l’étude du couplage ÉM avec des structures filaires de petite dimension. Afin d’étudier le couplage ÉM avec une ligne de transmission (LT) située à l’intérieur de l’enceinte d’un équipement électronique, nous avons développé au cours de la dernière partie de ce manuscrit un nouveau modèle du couplage. Différentes configurations ont été analysées, les résultats obtenus par ces analyses ont été comparés et validés avec Temsi-FD et avec les mesures expérimentales
He electromagnetic interferences (EMI) coupling inside metallic cavities that constitutes the shielding of electronic cards is an important problem in the electromagnetic compatibility (EMC) domain. The electromagnetic (EM) coupling with transmission lines (TL) or other objects located inside an enclosure has been investigated by different authors. Previous analyses have been made using numerical and analytical methods. The goal of the research work presented in this manuscript is to make a contribution to a better understanding of the analytical models allowing to predict the EM coupling level induced on an electronic device. After the establishment the physical model for the modal representation of the Green function (GF), the first part is devoted to analyse the EM coupling within enclosure by using the ILCM (Intermediat Level Circuit Model) technique. In the second part of this manuscript, we have exploited the ILCM model for predicting the EM coupling with elementary antennas fixed within enclosure. Finally, in the last part, a simple and efficient analytical model has been developed for the prediction of the electromagnetic (EM) field coupling with a lossless transmission line (TL) located in a rectangular enclosure. The analytical results have been successfully compared over a wide frequency band with Temsi-FD and experimental results
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7

Hu, Anqiao. "Green Electronics: High Efficiency On-chip Power Management Solutions for Portable and Battery-Powered Applications." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1291144939.

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8

Braga, Paulo Farias. "Desenvolvimento de antenas de microfita com aberturas nos patches condutores atrav?s do m?todo da segmenta??o." Universidade Federal do Rio Grande do Norte, 2005. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15401.

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Анотація:
Made available in DSpace on 2014-12-17T14:55:58Z (GMT). No. of bitstreams: 1 PauloFB.pdf: 617080 bytes, checksum: 5f9c06266e137d13c8b810163ede788d (MD5) Previous issue date: 2005-08-25
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
Microstrip antennas are widely used in modern telecommunication systems. This is particularly due to the great variety of geometries and because they are easily built and integrated to other high frequency devices and circuits. This work presents a study of the properties of the microstrip antenna with an aperture impressed in the conducting patch. Besides, the analysis is performed for isotropic and anisotropic dielectric substrates. The Multiport Network Model MNM is used in combination with the Segmentation Method and the Greens function technique in the analysis of the considered microstrip antenna geometries. The numerical analysis is performed by using the boundary value problem solution, by considering separately the impedance matrix of the structure segments. The analysis for the complete structure is implemented by choosing properly the number and location of the neighboor element ports. The numerial analysis is performed for the following antenna geometries: resonant cavity, microstrip rectangular patch antenna, and microstrip rectangular patch antenna with aperture. The analysis is firstly developed for microstrip antennas on isotropic substrates, and then extended to the case of microstrip antennas on anisotropic substrates by using a Mapping Method. The experimental work is described and related to the development of several prototypes of rectangular microstrip patch antennas wtih and without rectangular apertures. A good agreement was observed between the simulated and measured results. Thereafter, a good agreement was also observed between the results of this work and those shown in literature for microstrip antennas on isotropic substrates. Furthermore, results are proposed for rectangular microstrip patch antennas wtih rectangular apertures in the conducting patch
As antenas de microfita s?o estruturas muito utilizadas nos sistemas de telecomunica??es atuais. Isto decorre, principalmente, da diversidade de configura??es e da facilidade de constru??o e integra??o dessas antenas com outros dispositivos e circuitos de altas freq??ncias. Neste trabalho, o m?todo de an?lise empregado ? o Modelo de Circuito de M?lti-Porta (Multiport Network Model MNM), que combinado com o M?todo da Segmenta??o e a t?cnica da Fun??o de Green, mostra-se adequado ao estudo da antena de microfita com abertura no patch condutor. A partir do equacionamento do problema do valor de contorno, ? ent?o realizada uma an?lise num?rica que consiste em avaliar a estrutura da antena considerada a partir da integra??o dos elementos em que ela foi dividida. Nessa an?lise, os elementos s?o representados por matrizes de imped?ncia e a integra??o ? implementada atrav?s de portas de circuitos adequadamente escolhidas em n?mero e posicionamento. Na an?lise num?rica, foram consideradas as seguintes estruturas: a cavidade ressonante, a microfita com patch retangular convencional (sem abertura) e a microfita com patch retangular com abertura. A an?lise foi efetuada para substratos isotr?picos e estendida para o caso de antenas com substratos anisotr?picos uniaxiais atrav?s do M?todo do Mapeamento. S?o apresentados resultados para a freq??ncia de resson?ncia e para a imped?ncia de entrada de antenas de microfita. A parte experimental do trabalho consistiu no projeto, constru??o e medi??o de v?rios prot?tipos de antenas de microfita com patches retangulares com e sem abertura. Observou-se que os resultados obtidos, atrav?s da simula??o num?rica, apresentaram uma boa concord?ncia com os das medi??es efetuadas. Os resultados deste trabalho, tamb?m, concordaram com os resultados de outros autores, dispon?veis na literatura
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9

Garcia, Rosmond. "Contribution à l'étude de circuits planaires par une méthode itérative basée sur le concept d'onde (F. W. C. I. P)." Toulouse, INPT, 2001. http://www.theses.fr/2001INPT046H.

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Le travail présenté dans ce mémoire, a été dans un premier temps de formuler une nouvelle méthode itérative basée sur le concept d'onde (la FWCIP) pour modéliser tout type de dispositifs micro-ondes planaires sans aucune contrainte géométrique, puis à l'améliorer au fur et à mesure que les difficultés sont survenues. L'objectif de cette méthode est de déterminer une relation simple et efficace permettant de mettre en relation les ondes incidentes et réfléchies dans les différents milieux environnant la discontinuité en exprimant la réflexion dans le domaine modal et la diffraction, définie à partir des conditions aux limites et de continuité, dans le domaine spatial. Le processus itératif s'appuie sur la transformée de Fourier rapide en modes (FFTM) pour passer rapidement d'un domaine à l'autre et pour s'affranchir des fonctions d'essai. En sus, la FFTM permet de diminuer considérablement le temps de calcul. L'algorithme de la moyenne mobile a été appliqué à la méthode afin d'accroître les performances de celle-ci, en permettant l'accélération de la convergence de l'impédance vue par la source. Ce simulateur, après quelques comparaisons avec la littérature, se prête aussi bien à l'étude de structures en guide d'ondes classique (iris), des structures microrubans (antennes, coupleurs), qu'à des dispositifs coplanaires (filtres) en simple ou multicouches. Ensuite, la formulation de la méthode a été révisée pour permettre l'analyse de structures imprimées sur des matériaux artificiels réalisés soit à partir de plots métalliques (via-holes) disposés périodiquement dans le substrat diélectrique d'un circuit microruban ou à partir de gravures périodiques dans le plan de masse d'une ligne microruban. La FWCIP combinée avec la méthode des éléments de frontière a permis de définir les principales caractéristiques des filtres à gap photonique. Pour terminer, une étude comparative a été faite entre la simulation et les mesures.
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Sun, Fengyuan. "Analyse et caractérisation des couplages substrat et de la connectique dans les circuits 3D : Vers des modèles compacts." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0073/document.

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L’intégration 3D est la solution technologique la plus prometteuse pour suivre le niveau d’intégration dictée par la loi de Moore (cf. more than Moore, versus more Moore). Elle entraine des travaux de recherche importants depuis une douzaine d’années. Elle permet de superposer différents circuits et composants dans un seul boitier. Son principal avantage est de permettre une association de technologies hétérogènes et très spécialisées pour la constitution d’un système complet, tout en préservant un très haut niveau de performance grâce à des connexions très courtes entre ces différents circuits. L’objectif de ce travail est de fournir des modélisations cohérentes de via traversant, ou/et de contacts dans le substrat, avec plusieurs degrés de finesse/précision, pour permettre au concepteur de haut niveau de gérer et surtout d’optimiser le partitionnement entre les différentes strates. Cette modélisation passe par le développement de plusieurs vues à différents niveaux d’abstraction: du modèle physique au modèle « haut niveau ». Elle devait permettre de répondre à différentes questions rencontrées dans le processus de conception :- le modèle physique de via basé sur une simulation électromagnétique 2D ou 3D (solveur « éléments finis ») est utilisé pour optimiser l’architecture du via (matériaux, dimensions etc.) Il permet de déterminer les performances électriques des via, notamment en haute fréquence. Les simulations électromagnétiques permettent également de quantifier le couplage entre via adjacents. - le modèle compact analytique de via et de leur couplage, basé sur une description de type ligne de transmission ou noyaux de Green, est utilisé pour les simulations au niveau bloc, ainsi que des simulations de type Spice. Les modèles analytiques sont souvent validés par rapport à des mesures et/ou des modèles physiques
The 3D integration is the most promising technological solution to track the level of integration dictated by Moore's Law (see more than Moore, Moore versus more). It leads to important research for a dozen years. It can superimpose different circuits and components in one box. Its main advantage is to allow a combination of heterogeneous and highly specialized technologies for the establishment of a complete system, while maintaining a high level of performance with very short connections between the different circuits. The objective of this work is to provide consistent modeling via crossing, and / or contacts in the substrate, with various degrees of finesse / precision to allow the high-level designer to manage and especially to optimize the partitioning between the different strata. This modelization involves the development of multiple views at different levels of abstraction: the physical model to "high level" model. This would allow to address various issues faced in the design process: - The physical model using an electromagnetic simulation based on 2D or 3D ( finite element solver ) is used to optimize the via (materials, dimensions etc..) It determines the electrical performance of the via, including high frequency. Electromagnetic simulations also quantify the coupling between adjacent via. - The analytical compact of via their coupling model, based on a description of transmission line or Green cores is used for the simulations at the block level and Spice type simulations. Analytical models are often validated against measurements and / or physical models
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Книги з теми "GREEN CIRCUIT"

1

Terminal City Motor Company (Vancouver, B.C.), ed. See Vancouver in the green cars. [Vancouver: s.n., 1996.

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Kelley, Daniel S. A chronological listing and index to divorce records in the Greene County Circuit Court. Springfield, Mo. (1126 Boonville, Springfield 65802): Greene County Archives and Records Center, Office of the County Clerk, 1988.

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Ron, Daniels, ed. New cleaning strategies: Environmental issues and technical developments. San Francisco: Miller Freeman Books, 1994.

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Baumgart, Klaus. Anna and the little green dragon. New York: Hyperion Books for Children, 1992.

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Les, Hymes, ed. Cleaning printed wiring assemblies in today's environment. New York: Van Nostrand Reinhold, 1991.

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Kawahara, Takayuki. Green Computing with Emerging Memory: Low-Power Computation for Social Innovation. New York, NY: Springer New York, 2013.

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Lyssel, Melanie Van. Environmentally acceptable soldering and cleaning materials in electronics. Norwalk, CT: Business Communications Co., 1997.

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Gurnett, Keith W. No-clean technology: An assessment of market & technical potential. Oxford, UK: Elsevier Advanced Technology, 1995.

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Fischer-Wolfarth, Jan. Advanced Microsystems for Automotive Applications 2013: Smart Systems for Safe and Green Vehicles. Heidelberg: Springer International Publishing, 2013.

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Rafael, Reif, and Symposium on Environmental, Safety, and Health (ESH) Issues in IC Production (1996 : Boston, Mass.), eds. Environmental, safety, and health issues in IC production: Symposium held December 4-5, 1996, Boston, Massachusetts, U.S.A. Pittsburgh, Pa: Materials Research Society, 1997.

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Частини книг з теми "GREEN CIRCUIT"

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Koreman, C. G. A., Hiroki Ito, S. Xu, C. Zou, Z. Yuan, Z. Yu, K. Zheng, R. Huang, K. Han, and W. D. Zhou. "HVDC Circuit Breakers." In CIGRE Green Books, 1–67. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-71619-6_51-1.

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Haiyue, Wang, and Su Xunwen. "Nonlinear Resistance Circuit Curve Intersection Method Algorithm Research." In Green Energy and Networking, 108–16. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62483-5_12.

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Wang, Juan, Liu Wenbin, Han Tongzhuang, and Zhou Xin. "Design and Analysis of a New Logistic Chaotic Digital Generation Circuit." In Green Energy and Networking, 66–74. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62483-5_8.

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Ma, Chenguang, Xiaoqiang Yu, Feifei Yang, and Jun Mou. "Dynamical Analysis of the Fractional-Order Memristive Band Pass Filter Chaotic Circuit." In Green Energy and Networking, 181–92. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21730-3_20.

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Ouadfel, Ghania, Hamza Houassine, and Abdrrazak Gacemi. "Short Circuit Fault Detection in Photovoltaic Inverter Using FRA Analysis and FFT Method." In Advances in Green Energies and Materials Technology, 115–22. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0378-5_16.

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Amirgaliyev, Yedilkhan, Murat Kunelbayev, and Talgat Sundetov. "Calculation of the Energy of a Two-Circuit Solar System with Thermosiphon Circulation Based on the Internet of Things." In Computational Intelligence Techniques for Green Smart Cities, 321–33. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96429-0_15.

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Gabrielsson, Erik O., Daniel T. Simon, and Magnus Berggren. "Biocompatible Circuits for Human-Machine Interfacing." In Green Materials for Electronics, 91–118. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527692958.ch3.

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Karuppasamy, M., and S. P. Balakannan. "Energy-Efficient Data Delivery in Green Cloud Networks." In Nanoelectronics, Circuits and Communication Systems, 313–21. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0776-8_29.

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Pandey, Bishwajeet, and Keshav Kumar. "HDL coding of GCC Circuits." In Green Communication with Field-programmable Gate Array for Sustainable Development, 33–69. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003302872-3.

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Hedrich, Rainer, and Dirk Becker. "Green circuits — The potential of plant specific ion channels." In Signals and Signal Transduction Pathways in Plants, 401–14. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0239-1_22.

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Тези доповідей конференцій з теми "GREEN CIRCUIT"

1

Ge, Feng, Wei Wang, Naval H. Gupte, Ken Choi, Gyungsoo Kang, and SooHyun Kim. "A Circuit Prototype for Dielectric Polymer Energy Harvesting System." In 2011 IEEE Green Technologies Conference (IEEE-Green). IEEE, 2011. http://dx.doi.org/10.1109/green.2011.5754873.

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Jian, Yang, Liu Shuxin, Sun Zhuo, and Liu Shuze. "Research on Circuit Breaker Circuit Resistance Test Equipment." In 2022 Power System and Green Energy Conference (PSGEC). IEEE, 2022. http://dx.doi.org/10.1109/psgec54663.2022.9881054.

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Kwasinski, Andres, and Dhireesha Kudithipudi. "Towards integrated circuit thermal profiling for reduced power consumption: Evaluation of distributed sensing techniques." In 2010 International Conference on Green Computing (Green Comp). IEEE, 2010. http://dx.doi.org/10.1109/greencomp.2010.5598276.

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Kobayashi, Katsushi, Dai Mochinaga, Ichiro Murase, and Tomohiro Kudoh. "What can green hybrid optical circuit architecture achieve?" In 2010 Ieee Globecom Workshops. IEEE, 2010. http://dx.doi.org/10.1109/glocomw.2010.5700170.

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Bravo, Richard J., and Chuong Ly. "Electronic-Coupled Generators Short Circuit Impacts." In 2015 Seventh Annual IEEE Green Technologies Conference (GreenTech). IEEE, 2015. http://dx.doi.org/10.1109/greentech.2015.22.

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Marinova, Galia, and Zdravka Tchobanova. "Circuit Design for Green Communications – Methods, Tools and Examples." In University for Business and Technology International Conference. Pristina, Kosovo: University for Business and Technology, 2016. http://dx.doi.org/10.33107/ubt-ic.2016.51.

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Arturo, Gaytan C., Montaño R. Homero, Márquez M. Erika, and Uribe A. Roberto. "Concrete in the Inner Circuit: A Sustainable Solution for Mexico City." In Green Streets and Highways Conference 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41148(389)35.

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Muljadi, E., M. Singh, R. Bravo, and V. Gevorgian. "Dynamic Model Validation of PV Inverters under Short-Circuit Conditions." In 2013 IEEE Green Technologies Conference (GreenTech 2013). IEEE, 2013. http://dx.doi.org/10.1109/greentech.2013.23.

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Khairudin, A. R. M., and H. Salleh. "Multisource energy harvesting circuit for low power application." In GREEN DESIGN AND MANUFACTURE: ADVANCED AND EMERGING APPLICATIONS: Proceedings of the 4th International Conference on Green Design and Manufacture 2018. Author(s), 2018. http://dx.doi.org/10.1063/1.5066683.

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Rusev, Rostislav Pavlov, George Vasilev Angelov, Elitsa Emilova Gieva, Boris Petkov Atanasov, and Marin Hristov Hristov. "Microelectronic circuit emulating Hydrogen Bonding Network of Green Fluorescent Protein." In 2016 XXV International Scientific Conference Electronics (ET). IEEE, 2016. http://dx.doi.org/10.1109/et.2016.7753511.

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