Results 101 to 110 of about 444,463 (293)

Opportunistic secure transmission scheme for simultaneous wireless information and power transfer

Tongxin xuebao, 2019
Aiming at the different requirements of energy transmission and information transmission in simultaneous wireless information and power transfer (SWIPT),an opportunistic transmission scheme was proposed for enhancing physical layer security.Firstly,a ...
Keming MA, Yajun CHEN, Xin HU, Kaizhi HUANG, Xinsheng JI   +4 more
doaj   +2 more sources

Study of the Chalcogenide Nonlinear Fiber Bragg Gratings for All-Optical Switching

Communications, 2012
In this paper uniform and apodized nonlinear chalcogenide glass fiber Bragg gratings (FBG) as novel and promising devices for all-optical switching are investigated. The transmission response of these devices is discussed theoretically.
Eliska Jurisova, Jarmila Mullerova
doaj   +1 more source

Information Switching Processor (ISP) contention analysis and control [PDF]

Future satellite communications, as a viable means of communications and an alternative to terrestrial networks, demand flexibility and low end-user cost.
Inukai, T., Shyy, D.
core   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

A microfluidic 2×2 optical switch [PDF]

, 2004
A 2×2 microfluidic-based optical switch is proposed and demonstrated. The switch is made of an optically clear silicon elastomer, Polydimethylsiloxane (PDMS), using soft lithography.
Campbell, Kyle, Fainman, Yeshaiahu, Groisman, Alex, Levy, Uriel, Mookherjea, Shayan, Pang, Lin, Psaltis, Demetri   +6 more
core  

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Underwater Invisible Light Communication Network with Beam Steering Technology for Dynamic Switching Between Aerial and Underwater Optical Paths

Sensors
This study proposes a bidirectional underwater optical wireless communication network that maximizes data transmission capacity by dynamically switching between underwater and aerial optical paths based on channel conditions.
Kiichiro Kuwahara, Keita Tanaka, Ayumu Kariya, Shogo Hayashida, Takahiro Kodama   +4 more
doaj   +1 more source

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

Advanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu, Joel Aboagye, Marcella Edwards, Nick Rogozinski, Yufeng Wen, Angello Huerta Gomez, Zui Pan, Ge Zhang, Huaxiao Yang, Yi Hong   +9 more
wiley   +1 more source

AC Filter Switching Combination Optimization Strategy for "AC-to-DC" System

Zhongguo dianli
The "AC-to-DC " high voltage direct current transmission project can effectively improve power transmission efficiency and address challenges such as limited space for new transmission lines.
Xuan FENG, Xiangping KONG, Xiaozhou DU, Juntao FEI, Xianmeng ZHANG, Qiuyu JIANG, Zhenxing LI   +6 more
doaj   +1 more source

Microwave switching power divider [PDF]

, 1981
A pair of parallel, spaced-apart circular ground planes define a microwave cavity with multi-port microwave power distributing switching circuitry formed on opposite sides of a thin circular dielectric substrate disposed between the ground planes.
Johnson, R. W., Stockton, R. J.
core   +1 more source