Results 141 to 150 of about 68,865 (333)

Coverage Analysis for Cellular-Connected Random 3D Mobile UAVs with Directional Antennas [PDF]

, 2022
HongGuang Sun, Chao Ma, Linyi Zhang, Jiahui Li, Xijun Wang, Shuqin Li, Tony Q. S. Quek   +6 more
openalex   +1 more source

Geometry‐Dependent Adhesion in Transparent Monodomain Liquid Crystal Elastomers

Advanced Functional Materials, EarlyView.
Liquid Crystal Elastomers (LCEs) are emerging as exciting pressure‐sensitive adhesives. We examine adhesion in chemically identical elastomer films, exploring the influence of geometry (director orientation) and phase (nematic or isotropic). We demonstrate the potential of these aligned films as transparent, tunable, broad‐temperature‐range smart ...
Aidan Street, Devesh Mistry, Johan Mattsson, Helen F. Gleeson   +3 more
wiley   +1 more source

Analyzing The Performance of the Dynamic Position Location and Tracking (D-Pl&T) of Mobile Nodes Using Omni Directional Antenna in Manet

, 2015
Sharmistha Khan, Golam R Khan, Dhadesugoor R. Vaman, Siew T. Koay, Suxia Cui   +4 more
openalex   +1 more source

Method for directional pattern adaptation of hydroacoustic antenna array to the current conditions of a non-stationary underwater communication channel [PDF]

, 2021
Petr Unru
openalex   +1 more source

Biobased Bionic Spider Silk via Electrostatic Complexation for Simultaneously Harvesting Atmospheric Water and Triboelectric Energy

Advanced Functional Materials, EarlyView.
Bio‐based bionic spider silk and spider web are first prepared using polyelectrolyte complexation technique for the simultaneous harvesting of water and triboelectric energy. The advantage of this process lies on entirely bio‐based materials, fully green water‐processable procedures, extremely high production rate (99.36%), excellent fog harvesting ...
Qin Chen, Araz Rajabi‐Abhari, Tongtong Fu, Haonan Zhang, Siqi Huan, Liang Chen, Jinchao Li, Cheng Hao, Yaping Zhang, Ning Yan   +9 more
wiley   +1 more source

A Low Cost and Portable Microwave Imaging System for Breast Tumor Detection Using UWB Directional Antenna array. [PDF]

Sci Rep, 2019
Islam MT, Mahmud MZ, Islam MT, Kibria S, Samsuzzaman M.   +4 more
europepmc   +1 more source

Biomimetic Ion‐Orchestrated Hierarchical Armored Hydrogel Coating for Robust and Multifunctional Surface Protection

Advanced Functional Materials, EarlyView.
Inspired by the skin‐toughening mechanism of marine sponges, an ion‐orchestrated structural engineering strategy is proposed to regulate the surface microstructure of hydrogel coatings, enabling the in situ formation of a robust armor layer that enhances mechanical integrity and provides multifunctional protection by suppressing fouling attachment and ...
Wenshuai Yang, Ziqian Zhao, Weiyan Zhu, Lu Gong, Yongxiang Sun, Haoyu Yang, Ling Zhang, Wenfei Zhang, Hao Zhang, Fang Zhou, Xuwen Peng, Hongbo Zeng   +11 more
wiley   +1 more source

Photoconductivity‐Driven Quantum Efficiency Gain in Inorganic Ruddlesden‐Popper Layered Cs2PbBr2I2 Perovskite Photodetector for Visible Light Detection

Advanced Functional Materials, EarlyView.
Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah, Asif Abdullah Khan, Saikiran Khamgaonkar, Majid Haji Bagheri, Danyah Khan, Md Rasidul Islam, Mahmoud Almadoun, Aixi Pan, Alexander Li, Marwa Abd‐Ellah, Vivek Maheshwari, Dayan Ban   +11 more
wiley   +1 more source

Synthesis of Amplitude-Phase Distribution in Quasiconcave an Antenna Array

Известия высших учебных заведений России: Радиоэлектроника, 2017
Ring antenna arrays find wide application in radio systems of various purpose. However, in many cases it is necessary to use quasi-ring antenna arrays when the emitters are not located in a circle.
M. R. Bibarsov, E. V. Gribanov, D. D. Gabrielyan, D. S. Fedorov, D. S. Fedorov   +4 more
doaj  

Low-profile ultra-wideband directional dipole antenna as a feed for reflectors in radio telescopes [PDF]

, 2016
Chao Xie, Jungang Yin, Xiang Li, Feng Pang, Jian Yang   +4 more
openalex   +1 more source