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Publicado: 6 de septiembre de 2023

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1

Marano, Stefano, Vincenzo Matta y Peter Willett. "Nearest-Neighbor Distributed Learning by Ordered Transmissions". IEEE Transactions on Signal Processing 61, n.º 21 (noviembre de 2013): 5217–30. http://dx.doi.org/10.1109/tsp.2013.2273887.

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2

Sriranga, N., K. G. Nagananda y R. S. Blum. "Shared Channel Ordered Transmissions for Energy-Efficient Distributed Signal Detection". IEEE Communications Letters 23, n.º 1 (enero de 2019): 96–99. http://dx.doi.org/10.1109/lcomm.2018.2883045.

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3

Blum, Rick S. y Brian M. Sadler. "Energy Efficient Signal Detection in Sensor Networks Using Ordered Transmissions". IEEE Transactions on Signal Processing 56, n.º 7 (julio de 2008): 3229–35. http://dx.doi.org/10.1109/tsp.2008.919101.

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4

Wang, Gicheol y Gihwan Cho. "Secure Cluster Head Sensor Elections Using Signal Strength Estimation and Ordered Transmissions". Sensors 9, n.º 6 (16 de junio de 2009): 4709–27. http://dx.doi.org/10.3390/s90604709.

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5

Sen Gupta, Sayan, Sai Kiran Pallapothu y Neelesh B. Mehta. "Ordered Transmissions for Energy-Efficient Detection in Energy Harvesting Wireless Sensor Networks". IEEE Transactions on Communications 68, n.º 4 (abril de 2020): 2525–37. http://dx.doi.org/10.1109/tcomm.2020.2964545.

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6

Hesham, Laila, Ahmed Sultan, Mohammed Nafie y Fadel Digham. "Distributed Spectrum Sensing With Sequential Ordered Transmissions to a Cognitive Fusion Center". IEEE Transactions on Signal Processing 60, n.º 5 (mayo de 2012): 2524–38. http://dx.doi.org/10.1109/tsp.2012.2187644.

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7

BERMOND, JEAN-CLAUDE, RALF KLASING, NELSON MORALES, STÉPHANE PÉRENNES y PATRICIO REYES. "GATHERING RADIO MESSAGES IN THE PATH". Discrete Mathematics, Algorithms and Applications 05, n.º 01 (marzo de 2013): 1350004. http://dx.doi.org/10.1142/s1793830913500043.

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In this paper, we address the problem of gathering information in one node (sink) of a radio network where interference constraints are present: when a node transmits, it produces interference in an area bigger than the area in which its message can actually be received. The network is modeled by a graph; a node is able to transmit one unit of information to the set of vertices at distance at most dT in the graph, but when doing so it generates interferences that do not allow nodes at distance up to dI(dI ≥ dT) to listen to other transmissions. We are interested in finding a gathering protocol, that is an ordered sequence of rounds (each round consists of noninterfering simultaneous transmissions) such that w(u) messages are transmitted from any node u to a fixed node called the sink. Our aim is to find a gathering protocol with the minimum number of rounds (called gathering time). In this article, we focus on the specific case where the network is a path with the sink at an end vertex of the path and where the traffic is unitary (w(u) = 1 for all u); indeed this simple case appears to be already very difficult. We first give a new lower bound and a protocol with a gathering time that differ only by a constant independent of the length of the path. Then we present a method to construct incremental protocols. An incremental protocol for the path on n + 1 vertices is obtained from a protocol for n vertices by adding new rounds and new calls to some rounds but without changing the calls of the original rounds. We show that some of these incremental protocols are optimal for many values of dT and dI (in particular when dT is prime). We conjecture that this incremental construction always gives optimal protocols. Finally, we derive an approximation algorithm when the sink is placed in an arbitrary vertex in the path.
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8

Kondoju, Sai Krishna y V. V. Mani. "Outage and BER analysis of dual-carrier modulation over frequency-selective Nakagami-m fading channels". COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 36, n.º 1 (3 de enero de 2017): 90–107. http://dx.doi.org/10.1108/compel-03-2016-0097.

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Purpose This paper aims to the increasing need for high-speed low-power data transmissions over frequency-selective fading channels has drawn attention to suggest dual-carrier modulation (DCM) for multiband orthogonal frequency division multiplexing (OFDM) transceivers for ultra wideband (UWB) wireless personal area network (WPAN). Design/methodology/approach Under frequency-selective fading channel conditions, the decoder is not sufficient enough to decode the transmission bits of severely attenuated data tones. Hence, the authors suggest DCM for a multiband OFDM transceiver because of its multiple capability of providing both frequency diversity and coding gain. It also resulted in low bit-error-rate (BER) at a given signal- to-noise ratio when compared to conventional multiband OFDM system. To achieve an optimised BER, DCM transforms four re-ordered bits into two quaternary phase shift keying symbols and further transforms to two 16-quadrature amplitude modulation-like (16-QAM) symbols with a suitable mapping technique, and at the receiver end, they are decoded with maximum likelihood decision rule. After performing the transformation, the outage probability and average BER expressions are derived to analyse the system performance. Findings DCM is suitable for high data rate transmission and is immune to frequency-selective fading. The outage and BER performance outstands over conventional multiband OFDM transceiver because of the inclusion of DCM mapping. Practical implications It is widely used in WPANs such as high definition multimedia interface and wireless universal serial bus. Originality/value This paper derives novel closed-form outage probability and a tight upper bound on average BER expressions for DCM-based multiband OFDM UWB transceiver over frequency-selective Nakagami-m fading channels for any arbitrary value of m. For this, moment-generating function of sum of squared, independent and identically distributed (i.i.d.) Nakagami-m random variables are used. Further, the system performance is also validated for the case of exponential decaying power delay profile, and the simulation results are provided to check the accuracy of the derived expressions.
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9

Lighter, Jennifer, Stephanie Sterling, Kelly McKinney, Judith Medefindt, Sarah Hochman, Anna Stachel, Vinh Pham y Michael S. Phillips. "1616. Confronting Measles: The View from a New York City Health System at the Center of the Outbreak". Open Forum Infectious Diseases 6, Supplement_2 (octubre de 2019): S589. http://dx.doi.org/10.1093/ofid/ofz360.1480.

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Abstract Background A measles outbreak was identified in NYC in October, 2018. Over 430 cases have been confirmed to date, mostly in under-vaccinated children. Due to referral patterns, our health system provided care to a large number of these patients in the ambulatory, Emergency Department and inpatient settings, placing significant pressure on Infection Prevention and Control efforts. Our response utilized the engineering, administrative, protective equipment and educational hierarchy of controls to prevent transmission to patients, visitors and staff. Methods Patients residing from outbreak zip codes were flagged in our electronic medical record. Screening for symptoms, measles exposure, vaccine opportunities and education were provided when patients presented for care. Enhanced controls for premature infants and immunocompromised patients were enacted. Automated emails to providers caring for patients from the outbreak area served as reminders to consider measles in differential diagnosis. As most cases of measles occurred in children, special effort was taken to prevent transmissions in pediatrics. Patient rooms on multiple inpatient floors were converted to negative pressure with respect to corridor, as admitted patients developed symptomatic (contagious) illness while hospitalized. We limited all nonimmune visitors <5 years from entering inpatient units. Patients were contacted prior to ambulatory visits, procedures, and surgery to ensure patients from outbreak zip codes were triaged appropriately. Automated alerts to Infection Control when measles testing was ordered allowed timely implementation of prevention measures and surveillance. Finally, educational materials for patients and visitors were translated into 7 languages and shared with other NYC hospitals. Results To date, 95 patients with suspect measles presented to our system, with 20 patients (16 pediatric and 4 adult) laboratory-confirmed cases requiring hospital admission due to measles pneumonia, hepatitis, and encephalitis. There was no evidence of transmission within the hospital and ambulatory setting to patients or staff. Conclusion A coordinated response involving engineering and administrative controls, PPE training and education is necessary when confronting a large urban measles outbreak. Disclosures All authors: No reported disclosures.
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10

Müller, Wolfgang, Nicolas Friedrich Walte y Nobuyoshi Miyajima. "Experimental deformation of ordered natural omphacite: a study by transmission electron microscopy". European Journal of Mineralogy 20, n.º 5 (5 de noviembre de 2008): 835–44. http://dx.doi.org/10.1127/0935-1221/2008/0020-1851.

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11

Erdogan, H. y J. A. Fessler. "Ordered subsets algorithms for transmission tomography". Physics in Medicine and Biology 44, n.º 11 (20 de octubre de 1999): 2835–51. http://dx.doi.org/10.1088/0031-9155/44/11/311.

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12

Razpet, Alenka, Göran Possnert, Anders Johansson, Anders Hallén y Klas Hjort. "Ion transmission and characterization of ordered nanoporous alumina". Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 222, n.º 3-4 (agosto de 2004): 593–600. http://dx.doi.org/10.1016/j.nimb.2004.03.072.

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13

Shalin, Alexander S. y Vladimir S. Gorelik. "Anomalies of light transmission in structurally ordered nanocomposites". Journal of Russian Laser Research 31, n.º 4 (julio de 2010): 390–402. http://dx.doi.org/10.1007/s10946-010-9159-x.

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14

Recur, B., H. Balacey, J. Bou Sleiman, J. B. Perraud, J. P. Guillet, A. Kingston y P. Mounaix. "Ordered subsets convex algorithm for 3D terahertz transmission tomography". Optics Express 22, n.º 19 (16 de septiembre de 2014): 23299. http://dx.doi.org/10.1364/oe.22.023299.

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15

Perdry, Hervé, Marie-Claude Babron y Françoise Clerget-Darpoux. "The ordered transmission disequilibrium test: detection of modifier genes". Genetic Epidemiology 33, n.º 1 (enero de 2009): 1–5. http://dx.doi.org/10.1002/gepi.20348.

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16

Habib, Khaled y A. Al-Arbeed. "Boundary Line of Microcrystallites in Amorphous and Crystalline Structures of Metallic Glasses". Defect and Diffusion Forum 283-286 (marzo de 2009): 123–27. http://dx.doi.org/10.4028/www.scientific.net/ddf.283-286.123.

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In a recent study conducted by the author, microcrystallites were observed to exist in amorphous, short range ordered, structures of several metallic glasses. The observation is based on X-Ray Diffraction (XRD) and Electron Diffraction (ED) and Transmission Electron Microscopy (TEM). The data from the X-ray diffraction shows that the metallic glasses have typical amorphous structures. However, the data from the Electron Diffraction indicates that the metallic glasses possess polycrystalline structures. This discrepancy between the XRD and ED data can be interpreted and explained by diffraction theory [1,2] with the aid of Transmission Electron Microscopy. In fact results in the recent work show that with a mathematical relationship originally derived by Sherrer [1], one can determine the boundary line between microcrystallites in amorphous, short range ordered, structures and crystalline, long range ordered, structures. The boundary line of microcrystallites is defined with the aid of Transmission Electron Microscopy in which the size of subgrains, of the metallic glasses was determined from the mathematical relationship.
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17

FON-DER-FLAASS, DMITRI y IVAN RIVAL. "COLLECTING INFORMATION IN GRADED ORDERED SETS". Parallel Processing Letters 03, n.º 03 (septiembre de 1993): 253–60. http://dx.doi.org/10.1142/s0129626493000290.

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We consider a set of computers with precedence constraints (an ordered set) in which stored information can be passed, serially or in parallel, from one computer to any other which is an immediate successor. When is it possible to organize information transmission so that each computer receives all information from its predecessors, without duplication?
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18

Yan, Pengfei, Toshiyuki Mori, Yuanyuan Wu, Zhimin Li, Graeme John Auchterlonie, Jin Zou y John Drennan. "Microstructural and Chemical Characterization of Ordered Structure in Yttrium Doped Ceria". Microscopy and Microanalysis 19, n.º 1 (11 de enero de 2013): 102–10. http://dx.doi.org/10.1017/s1431927612013888.

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AbstractThe ordered structures in different doping levels (x = 0.1, 0.15, 0.2, 0.25, 0.3) of yttrium doped ceria (YDC, Ce(1−x)YxO2−δ) electrolytes were investigated by electron diffraction, high-resolution transmission electron microscopy (TEM), scanning TEM, and electron energy loss spectroscopy. Oxygen vacancy ordering was experimentally confirmed within the ordered structures. With increasing the doping level, the concentration of trivalent Ce cations was increased in YDC samples and such trivalent Ce cations were supposed to mainly exist in the ordered structures. Based on our electron microscopic observation and microanalysis, a crystal model for the ordered structures is proposed.
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19

Zhao, Hai Jing, Dong Lin Zhao, Ji Ming Zhang y Dong Dong Zhang. "Ordered Mesoporous Carbon Nano Spheres as Electrode Material for Supercapacitors". Applied Mechanics and Materials 320 (mayo de 2013): 661–64. http://dx.doi.org/10.4028/www.scientific.net/amm.320.661.

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Ordered mesoporous carbon nanospheres with uniformly penetrating channels have been successfully synthesized by a nanocasting method using mesoporous silica as a template. The ordered mesoporous carbon nanospheres were investigated as electrode materials for supercapacitors via high-resolution transmission electron microscopy, nitrogen adsorption and desorption isotherms and a variety of electrochemical testing techniques. The electrodes with ordered mesoporous carbon nanospheres prepared by coating method exhibited good rate capability and reversibility at high scan rates in electrochemical performances. Ordered mesoporous carbon nanosphere electrode with specific surface area of 904 m2/g maintained a stable specific capacitance of 210 F g-1under specific current of 0.1 A g-1for 500 cycles of charge/discharge.
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20

Khoroshko, Liudmila, Aleksey Baglov, Taisa Orekhovskaya, Sergei Trukhanov, Daria Tishkevich, Alex Trukhanov, Tamara Raichenok y Anatoly Kopots. "Optical Properties of Valve Metals Functional Thin Films Obtained by Electrochemical Anodization on Transparent Substrates". Coatings 12, n.º 11 (4 de noviembre de 2022): 1678. http://dx.doi.org/10.3390/coatings12111678.

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Nanostructured aluminum, tantalum, and vanadium oxide layers on glass substrates were obtained by electrochemical anodizing in oxalic and sulfuric–oxalic electrolytes. The morphological and optical properties of the obtained structures were investigated experimentally by scanning electron microscopy and transmission spectroscopy. Obtained oxide coatings are quasi-ordered arrays of vertical (aluminum oxide/tantalum oxide, aluminum oxide/vanadium oxide, and aluminum oxide obtained in the oxalic electrolyte) or non-ordered tree-like (aluminum oxide obtained in the sulfuric–oxalic electrolyte) pores depending on the initial film metal and anodizing technology. The light transmission in the range of 750–1200 nm is up to 60% for aluminum oxide/tantalum oxide/glass (annealed) and quasi-ordered aluminum oxide/glass structures, and around 40% for aluminum oxide/tantalum oxide/glass (not annealed) and aluminum oxide/vanadium oxide. Non-ordered aluminum oxide is characterized by low transmission (no more than 8%) but has a developed surface and may be of interest for the formation of films with poor adhesion on smooth substrates, for example, photocatalytic active xerogels. The refractive indices of dispersion of the obtained layers were calculated from the transmission spectra by the envelope method. The dispersion of the refractive indices of the obtained oxide films is insignificant in a wide range of wavelengths, and the deviation from the average value is assumed to be observed near the intrinsic absorption edges of the films. The glasses with proposed semi-transparent nanostructured oxide layers are promising substrate structures for subsequent sol–gel coating layers used in photocatalytic purification systems or up-conversion modules of tandem silica solar cells with forward and reverse illumination.
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21

Usami, Takamasa, Ippei Suzuki, Mitsuru Itoh y Tomoyasu Taniyama. "Transmission of spin waves in ordered FeRh epitaxial thin films". Applied Physics Letters 108, n.º 23 (6 de junio de 2016): 232404. http://dx.doi.org/10.1063/1.4953464.

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22

Quan, Chen, Nandan Sriranga, Haodong Yang, Yunghsiang S. Han, Baocheng Geng y Pramod K. Varshney. "Efficient Ordered-Transmission Based Distributed Detection Under Data Falsification Attacks". IEEE Signal Processing Letters 30 (2023): 145–49. http://dx.doi.org/10.1109/lsp.2023.3244748.

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23

Chbihi, Abdelahad, Xavier Sauvage, Cécile Genevois, Didier Blavette, Dmitriy Gunderov y Alexander G. Popov. "Disordering and Ordering in a Severely Deformed FePd Alloy". Solid State Phenomena 172-174 (junio de 2011): 703–8. http://dx.doi.org/10.4028/www.scientific.net/ssp.172-174.703.

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A Fe50Pd50alloy was severely deformed by High Pressure Torsion (HPT). For a processing temperature ranging from 20°C to 300°C, the Severe Plastic Deformation (SPD) induces a significant grain size reduction (in a range of 50 to 150 nm) but also a strong disordering of the long range ordered L10phase. However, Transmission Electron Microscopy (TEM) data clearly show that few ordered nanocrystals remain in the deformed state. The deformed material was annealed to achieve a nanoscaled long range ordered structure. The transformation proceeds via the nucleation and growth of ordered domains along grain boundaries. Aging at lower temperature (400°C) gives rise to a smallest domain size and thus the highest coercivity.
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24

Wu, Y., D. Pasero, E. E. McCabe, Y. Matsushima y A. R. West. "Partial cation-order and early-stage, phase separation in phase W, Li x Co 1− x O: 0.075≤ x ≤0.24−0.31". Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 465, n.º 2106 (25 de marzo de 2009): 1829–41. http://dx.doi.org/10.1098/rspa.2008.0489.

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We report the characterization using X-ray and neutron powder diffraction, transmission electron microscopy and extended X-ray absorption fine structure of a new, partially ordered rock-salt-like solid solution phase Li x Co 1− x O: 0.075≤ x ≤0.24−0.31. The cation stacking sequence along [111] consists of alternating planes of Co and Co/Li. Nano-sized domains of this cation-ordered phase appear alongside disordered regions; domain size increases from 2 to 8 nm with increasing Li content. Compositions of ordered and disordered regions are Li- and Co-rich, respectively, and, therefore, the phase exhibits frozen-in, incipient phase separation. This microstructure could be considered as a precursor to precipitation of fully ordered, rhombohedral LiCoO 2 .
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25

Krumeich, Frank. "Intergrowth of niobium tungsten oxides of the tetragonal tungsten bronze type". Zeitschrift für Naturforschung B 75, n.º 11 (26 de noviembre de 2020): 913–19. http://dx.doi.org/10.1515/znb-2020-0107.

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AbstractSince the 1970s, high-resolution transmission electron microscopy (HRTEM) is well established as the most appropriate method to explore the structural complexity of niobium tungsten oxides. Today, scanning transmission electron microscopy (STEM) represents an important alternative for performing the structural characterization of such oxides. STEM images recorded with a high-angle annular dark field (HAADF) detector provide not only information about the cation positions but also about the distribution of niobium and tungsten as the intensity is directly correlated to the local scattering potential. The applicability of this method is demonstrated here for the characterization of the real structure of Nb7W10O47.5. This sample contains well-ordered domains of Nb8W9O47 and Nb4W7O31 besides little ordered areas according to HRTEM results. Structural models for Nb4W7O31 and twinning occurring in this phase have been derived from the interpretation of HAADF-STEM images. A remarkable grain boundary between well-ordered domains of Nb4W7O31 and Nb8W9O47 has been found that contains one-dimensionally periodic features. Furthermore, short-range order observed in less ordered areas could be attributed to an intimate intergrowth of small sections of different tetragonal tungsten bronze (TTB) based structures.
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26

Zhou, Liguo, Yanshuang Han, Hang Wu, Zhihe Long, Hui Li y Tianliang Zhang. "Multi-order Miniaturized Dual Transmission Zeros HTS Filter without Cross Coupling". International Journal of Information and Electronics Engineering 10, n.º 2 (junio de 2020): 28–34. http://dx.doi.org/10.18178/ijiee.2020.10.2.716.

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27

Kim, Seog-Jun y Darrell H. Reneker. "Scanning Tunneling Microscopy of Carbon Blacks". Rubber Chemistry and Technology 66, n.º 4 (1 de septiembre de 1993): 559–66. http://dx.doi.org/10.5254/1.3538328.

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Abstract Three kinds of carbon black, HAF (high abrasion furnace, N330), MT (medium thermal, N990), and graphitized MT were observed with the scanning tunneling microscope (STM), the transmission electron microscope (TEM), and the scanning electron microscope (SEM) All the STM images are formed from measurements of the x, t, and z position of points on the surface of the particle. The STM images of carbon blacks were compared to transmission electron microscope (TEM) photographs. Pitted and stepped bumps were observed on the surface of HAF carbon black. The surface of MT carbon black was more rough and disorganized At the atomic scale, ordered structure was found on the surface of HAF carbon-black particles Graphitized MT carbon-black particles were faceted polyhedra. Some facets were smooth while others had multiple terraces. The surface of graphitized MT carbon black was so well ordered that a lattice of carbon atoms similar to HOPG (highly ordered pyrolytic graphite) was observed on the smooth facets.
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28

Zhang, Junxi, Huaping Zhao, Ming Gong, Lide Zhang, Zhijun Yan, Kang Xie, Guangtao Fei et al. "Revealing the truncated conical geometry of nanochannels in anodic aluminium oxide membranes". Nanoscale 14, n.º 14 (2022): 5356–68. http://dx.doi.org/10.1039/d2nr01006b.

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29

WANG, QING YUN, MATJAŽ PERC, ZHI SHENG DUAN y GUAN RONG CHEN. "SPATIAL COHERENCE RESONANCE IN DELAYED HODGKIN–HUXLEY NEURONAL NETWORKS". International Journal of Modern Physics B 24, n.º 09 (10 de abril de 2010): 1201–13. http://dx.doi.org/10.1142/s0217979210055317.

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We study the phenomenon of spatial coherence resonance (SCR) on Hodgkin–Huxley (HH) neuronal networks that are characterized with information transmission delay. In particular, we examine the ability of additive Gaussian noise to optimally extract a particular spatial frequency of excitatory waves in diffusive and small-world networks on which information transmission amongst directly connected neurons is not instantaneous. On diffusively coupled HH networks, we find that for short delay lengths, there always exists an intermediate noise level by which the noise-induced spatial dynamics is maximally ordered, hence implying the possibility of SCR in the system. Importantly thereby, the noise level warranting optimally ordered excitatory waves increases linearly with the increasing delay time, suggesting that extremely long delays might nevertheless preclude the observation of SCR on diffusive networks. Moreover, we find that the small-world topology introduces another obstacle for the emergence of ordered spatial dynamics out of noise because the magnitude of SCR fades progressively as the fraction of rewired links increases, hence evidencing decoherence of noise-induced spatial dynamics on delayed small-world HH networks. Presented results thus provide insights that could facilitate the understanding of the joint impact of noise and information transmission delay on realistic neuronal networks.
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30

Landacanovas, AR y LC Oterodiaz. "A Transmission Electron Microscopy Study of the MnS-Er2S3 System". Australian Journal of Chemistry 45, n.º 9 (1992): 1473. http://dx.doi.org/10.1071/ch9921473.

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A systematic search mainly by means of electron diffraction and microscopy techniques was performed to elucidate the structural behaviour of the Mn-Er-S ternary system at 1373-1773 K. At 1773 K a new phase MnEr2S4 with spinel structure, a = 11.97(2) � , was found. It transforms, due to electron beam damage (400 kV), into rock-salt (α-MnS ) domains and slabs of defects formed by some unit cells of MnEr2S4 (CaTi2O4 type) and MnEr4S7 (Y5S7 type) structures. The composition range between MnEr4S7 (S/M = 1.333) and MnEr4S7 (S/M = 1.400) is covered quasi-continuously by ordered and disordered intergrowth of both phases. Two ordered phases with composition Mn3Er8S15 (S/M = 1.3636) and Mn2Er6Sll (S/M = 1.375) have been found; however, disordered crystals due to a non-uniform mixing of those structures are more commonly observed. Furthermore, a new phase with a layer structure, reminiscent of LaCrS3 type, has been found mainly at 1373 K.
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31

Amador, Guillermo J., Dennis van Dijk, Roland Kieffer, Marie-Eve Aubin-Tam y Daniel Tam. "Hydrodynamic shear dissipation and transmission in lipid bilayers". Proceedings of the National Academy of Sciences 118, n.º 21 (21 de mayo de 2021): e2100156118. http://dx.doi.org/10.1073/pnas.2100156118.

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Vital biological processes, such as trafficking, sensing, and motility, are facilitated by cellular lipid membranes, which interact mechanically with surrounding fluids. Such lipid membranes are only a few nanometers thick and composed of a liquid crystalline structure known as the lipid bilayer. Here, we introduce an active, noncontact, two-point microrheology technique combining multiple optical tweezers probes with planar freestanding lipid bilayers accessible on both sides. We use the method to quantify both fluid slip close to the bilayer surface and transmission of fluid flow across the structure, and we use numerical simulations to determine the monolayer viscosity and the intermonolayer friction. We find that these physical properties are highly dependent on the molecular structure of the lipids in the bilayer. We compare ordered-phase with liquid disordered-phase lipid bilayers, and we find the ordered-phase bilayers to be 10 to 100 times more viscous but with 100 times less intermonolayer friction. When a local shear is applied by the optical tweezers, the ultralow intermonolayer friction results in full slip of the two leaflets relative to each other and as a consequence, no shear transmission across the membrane. Our study sheds light on the physical principles governing the transfer of shear forces by and through lipid membranes, which underpin cell behavior and homeostasis.
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32

Lai, Ming-Wei y Hiroki Kurata. "Exploring (1$$\overline{1}$$2)-related ordered structure in oxidation-synthesized α-Fe2O3 nanowhiskers". Journal of Materials Science 56, n.º 12 (25 de enero de 2021): 7286–97. http://dx.doi.org/10.1007/s10853-021-05787-4.

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AbstractHematite (α-Fe2O3) nanowhiskers (NWs) synthesized via oxidation of iron-based substrates are a promising photoanode material for photoelectrochemical water splitting. Such synthesized α-Fe2O3 NWs have been found to contain ordered axial structures. Herein, we reveal that the known (1$$\overline{1}$$ 1 ¯ 2)-related ordered structure actually exists in bicrystalline α-Fe2O3 NWs instead of single-crystalline α-Fe2O3 NWs and that it is associated with another known (3$$\overline{3}$$ 3 ¯ 0)-related ordered structure. Through a spherical aberration (CS)-corrected high-resolution transmission electron microscopy (HR-TEM) investigation, the microstructural characteristic of the (1$$\overline{1}$$ 1 ¯ 2)-related ordered structure is verified to be periodic atomic column displacements serving as tensile strain accommodation. The HR-TEM observation are also supported by a monochromated O K-edge EELS analysis, which indicates that α-Fe2O3 NWs hosting the (1$$\overline{1}$$ 1 ¯ 2)-related ordered structure are indeed associated with lattice expansion. In sum, our microstructural study elucidates the root cause of the long-asserted relationship between the (1$$\overline{1}$$ 1 ¯ 2)-related ordered structure and oxygen vacancy ordering.
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33

Chen, Guangming, Zongneng Qi y Deyan Shen. "Shear-induced ordered structure in polystyrene/clay nanocomposite". Journal of Materials Research 15, n.º 2 (febrero de 2000): 351–56. http://dx.doi.org/10.1557/jmr.2000.0055.

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A shear-induced ordered structure in an exfoliated polystyrene (PS)/clay nanocomposite is reported. X-ray diffraction (XRD), transmission electron microscopy (TEM), and infrared dichroism techniques have been employed to investigate the shear-induced ordered structure in the exfoliated PS/clay nanocomposite. Compared with the broad amorphous peaks before extrusion, a series of sharp diffraction peaks were observed in XRD pattern for the extruded PS/clay nanocomposite pellet sample, showing that an ordered structure occurred under shear flow. TEM images confirmed directly that the origin of the ordered structure was mainly due to the planar orientation of the primary particles of silicate layers as well as local ordered microstructure of the primary particles, induced by shear flow. The infrared dichroism study indicated that the phenyl group of PS apparently oriented parallel to the film surface, whereas no obvious orientation of the aliphatic chain could be observed. Based on these investigations, a possible mechanism was deduced for the formation of the ordered structure induced by shear flow in the exfoliated PS/clay nanocomposite.
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34

Cheng, G. S., L. D. Zhang, S. H. Chen, Y. Li, L. Li, X. G. Zhu, Y. Zhu, G. T. Fei y Y. Q. Mao. "Ordered nanostructure of single-crystalline GaN nanowires in a honeycomb structure of anodic alumina". Journal of Materials Research 15, n.º 2 (febrero de 2000): 347–50. http://dx.doi.org/10.1557/jmr.2000.0054.

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Ordered nanostructure of single-crystalline GaN nanowires in a honeycomb structure of anodic alumina was synthesized through a gas reaction of Ga2O vapor with a constant ammonia atmosphere at 1273 K in the presence of nano-sized metallic indium catalysis. Atomic force microscopy, x-ray diffraction, Raman backscattering spectroscopy, scanning electron microscopy, and transmission electron microscopy indicate that the ordered nanostructure consists of single-crystalline hexagonal wurtzite GaN nanowires in the uniform pores of anodic alumina about 20 nm in diameter and 40–50 μm in length. The growth mechanism of the ordered nanostructure is discussed. The photoluminescence spectrum of this nanostructure is also reported.
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35

Al-shami, Tareq M. "Defining and investigating new soft ordered maps by using soft semi open sets". Acta Universitatis Sapientiae, Mathematica 13, n.º 1 (1 de agosto de 2021): 145–63. http://dx.doi.org/10.2478/ausm-2021-0008.

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Abstract Here, we employ soft semi open sets to define new soft ordered maps, namely soft x-semi continuous, soft x-semi open, soft x-semi closed and soft x-semi homeomorphism maps, where x denotes the type of monotonicity. To show the relationships among them, we provide some illustrative examples. Then we give complete descriptions for each one of them. Also, we investigate “transmission” of these maps between soft and classical topological ordered spaces.
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36

Parsons-Moss, Tashi, Jinxiu Wang, Stephen Jones, Erin May, Daniel Olive, Zurong Dai, Mavrik Zavarin, Annie B. Kersting, Dongyuan Zhao y Heino Nitsche. "Sorption interactions of plutonium and europium with ordered mesoporous carbon". J. Mater. Chem. A 2, n.º 29 (2014): 11209–21. http://dx.doi.org/10.1039/c4ta01740d.

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37

Manglos, S. H., G. M. Gagne, A. Krol, F. D. Thomas y R. Narayanaswamy. "Transmission maximum-likelihood reconstruction with ordered subsets for cone beam CT". Physics in Medicine and Biology 40, n.º 7 (1 de julio de 1995): 1225–41. http://dx.doi.org/10.1088/0031-9155/40/7/006.

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38

Kamphuis, C. y F. J. Beekman. "Accelerated iterative transmission CT reconstruction using an ordered subsets convex algorithm". IEEE Transactions on Medical Imaging 17, n.º 6 (1998): 1101–5. http://dx.doi.org/10.1109/42.746730.

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39

Kole, J. S. "Statistical image reconstruction for transmission tomography using relaxed ordered subset algorithms". Physics in Medicine and Biology 50, n.º 7 (23 de marzo de 2005): 1533–45. http://dx.doi.org/10.1088/0031-9155/50/7/015.

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40

Baluc, N. y R. Schäublin. "Weak beam transmission electron microscopy imaging of superdislocations in ordered Ni3Al". Philosophical Magazine A 74, n.º 1 (julio de 1996): 113–36. http://dx.doi.org/10.1080/01418619608239693.

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41

Carta, Giorgio, Michele Brun, Alexander B. Movchan y Tetiana Boiko. "Transmission and localisation in ordered and randomly-perturbed structured flexural systems". International Journal of Engineering Science 98 (enero de 2016): 126–52. http://dx.doi.org/10.1016/j.ijengsci.2015.09.005.

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42

Furuichi, Hiroshi, Seiki Watanabe, Yang Wang y Shoichiro Nakamura. "Transmission electron diffraction pattern indicating partly ordered, partly disordered solid structure". Materials Letters 40, n.º 4 (agosto de 1999): 161–63. http://dx.doi.org/10.1016/s0167-577x(99)00068-3.

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43

Soo-Jin Lee. "Accelerated deterministic annealing algorithms for transmission CT reconstruction using ordered subsets". IEEE Transactions on Nuclear Science 49, n.º 5 (octubre de 2002): 2373–80. http://dx.doi.org/10.1109/tns.2002.803869.

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44

Díaz, Isabel, Viveka Alfredsson y Yasuhiro Sakamoto. "Transmission electron microscopy in formation and growth of ordered mesoporous materials". Current Opinion in Colloid & Interface Science 11, n.º 5 (noviembre de 2006): 302–7. http://dx.doi.org/10.1016/j.cocis.2006.09.007.

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45

Xu, Huiping y Jörg M. K. Wiezorek. "Transmission electron microscopy of room temperature deformed polytwinned L10-ordered FePd". Acta Materialia 52, n.º 2 (enero de 2004): 395–403. http://dx.doi.org/10.1016/j.actamat.2003.09.022.

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46

Vlasova, N. I., V. S. Gaviko, A. G. Popov, N. N. Shchegoleva, L. A. Stashkova, Dmitriy Gunderov y Xavier Sauvage. "Phase Transformations in Ferromagnetic Nanostructured FePd Alloy under Severe Plastic Deformation and Annealing". Solid State Phenomena 168-169 (diciembre de 2010): 392–95. http://dx.doi.org/10.4028/www.scientific.net/ssp.168-169.392.

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Equiatomic FePd alloy in the ordered state has been processed by means of high-pressure torsion deformation (HPTD) and then annealed. X-ray diffraction (XRD), transmission electron microscopy (TEM), and magnetic measurements have been carried out. HPTD results in an order-disorder transformation of the initial ordered L10-phase (s.g. P4/mmm) into a disordered fcc phase (s.g. Fm-3m) through the body-centered tetragonal (bct) phase (s.g. I4/mmm). Subsequent annealing restores the L10-phase.
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47

Iwasaki, Masanari, Yusuke Kanazawa, Daiki Manago, Maulik K. Patel, Gianguido Baldinozzi, Kurt E. Sickafus y Manabu Ishimaru. "Anomalous structural phase transformation in swift heavy ion-irradiated δ-Sc4Hf3O12". Journal of Applied Physics 132, n.º 7 (21 de agosto de 2022): 075901. http://dx.doi.org/10.1063/5.0098518.

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Swift heavy ion irradiation was carried out to examine the ionization effects on structural changes of δ-Sc4Hf3O12 in which oxygen vacancies are regularly arranged. The specimens were irradiated at room temperature with 92 MeV xenon ions to fluences ranging from 3 × 1012 to 1 × 1014/cm2 and characterized by grazing (glancing) incidence x-ray diffraction, transmission electron microscopy, and scanning transmission electron microscopy. It was found that the pristine long-range ordered rhombohedral δ-phase undergoes a reconstructive transformation toward a long-range disordered cubic oxygen-deficient fluorite phase promoted by ionization effects. In addition, an ordered phase with a short-range structure different from the δ-type was formed in a layer going from the surface to a depth of ∼4.5 μm in the specimen irradiated to a fluence of 1 × 1014/cm2. It was found that the ordered phase is formed from the disordered cubic fluorite phase. This structural change is anomalous, because it is the opposite process of the usual irradiation-induced structural change, the order-to-disorder phase transformation. Electron diffraction experiments revealed that short-range ordered regions in this layer possess an oxygen-excess bixbyite organization (C-type heavy rare-earth oxides) with randomly filled anion vacant sites to account for the different stoichiometry and a long-range average oxygen-deficient fluorite phase.
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48

Cao, Yang, Jian Zhong Zhu, Ying Ding, Gang Han, Rong Liang Fan y Hai Qin Fu. "Pore Size Control of Ordered Mesoporous Carbons and Adsorption Performance of Dye Molecules". Applied Mechanics and Materials 548-549 (abril de 2014): 38–42. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.38.

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Different kinds of mesoporous carbon materials can be obtained through the use of different templates or control condition. The study describes the adsorption behavior of dyes such as rhodamine B, methylthionine chloride and reactive red from aqueous solution using ordered mesoporous carbon in different pore size distribution. In this study, the method of controlling the aperture of ordered mesoporous carbon is changing the mass ratio of the revised template and carbon source. Ordered mesoporous carbon was synthesized with the evaporation induced self-assembly method in different proportion of template agent (F127) and phenolic resin and employed to evaluate the effects of initial concentration, contact time, pH and temperature on the removal of dye solution in batch experiments. The samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2 adsorption-desorption. These analyses reveal that the mesoporous carbon have ordered structure. The experimental results indicated the ordered mesoporous carbon in different pore size distribution showed significant differences in the adsorption of different dyes and it was provided with an excellent selective adsorption.
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49

Li, Miao, Hong Wang, Xian Qing Li y Jin Rong Liu. "Synthesis and Characterization of Mesoporous Molecular Sieve Al-MCM-41 Using Kaolin as Raw Material". Advanced Materials Research 779-780 (septiembre de 2013): 201–4. http://dx.doi.org/10.4028/www.scientific.net/amr.779-780.201.

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Ordered hexagonally mesoporous molecular sieve Al-MCM-41 with Si/Al (atom) ratio=9 was prepared by hydrothermal synthesis using raw kaolin. X-ray diffraction (XRD), Nitrogen adsorption desorption, Transmission Electron Microscope (TEM) and Energy Dispersive X-ray Detector (EDX) were employed to characterise raw kaolin, calcined kaolin, as-synthesized and calcined Al-MCM-41. The results indicated that characteristic reflections of raw kaolin disappeared after calcination, both of as-synthesized and calcined Al-MCM-41 exhibited well ordered hexagonally mesoporous molecular sieve structure.
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50

Zhang, Cheng Li, Shi Fei Kang, Qian Yu Zhang y Xi Li. "High Efficient Photoreduction CO2 with H2O on Metal Cu-Modified Graphitic Ordered Mesoporous Carbon Supported TiO2 Catalysts under Simulated Solar". Advanced Materials Research 906 (abril de 2014): 39–44. http://dx.doi.org/10.4028/www.scientific.net/amr.906.39.

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Cu-modified graphitic ordered mesoporous carbon supported TiO2 catalyst was synthesized based on a hard template method. X-ray diffraction, nitrogen adsorption-desorption, scanning electron microscopy and transmission electron microscopy analysis techinques were used to characterize the sample. It was observed that copper and anatase TiO2 nanoparticles were well dispersed in the Cu-modified mesoporous graphitic carbon, and the resulting composite with ordered mesostructure and high specific surface area exhibited an exceptionally high activity in the photocatalytic reduction of CO2 with H2O under simulated solar irradiation.
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