Results 81 to 90 of about 26,558 (265)
基于COMSOL Multiphysics的多重雷电流分量对OPGW断股分析
Dianci bileiqi, 2020 光纤复合架空地线（OPGW）的断股严重影响着电力系统的安全稳定性,为了研究雷电流对OPGW断股的影响,应用COMSOL Multiphysics对雷击点局部温度进行仿真,对连续雷电流B、C分量的作用下与多重雷电流A、B、C分量的作用下进行OPGW断股特性分析。结果表明:转移电荷量的大小是决定断股的主要原因。多重雷电流A、B、C分量作用产生温度与断股损伤程度均高于连续雷电流B、C分量的作用。先导雷电流分量越多,作用在OPGW表面遗留的载流子越多,转化的温度越高 ...
孙伟 +6 more
doaj
Advanced Materials, EarlyView.A photoactive tweezers system based on photoactive colloids is developed and systematically investigated in this study. Through experimental and theoretical methods, we demonstrate that the photoredox reaction catalyzed by a dye‐sensitized TiO2 particle generates a strong positive phototaxis, enabling self‐entrapment in the beam center.
Jingyuan Chen +9 more
wiley +1 more source
Simulation of an Adaptive Fluid-Membrane Piezoelectric Lens
Micromachines, 2019 In this paper, we present a finite-element simulation of an adaptive piezoelectric fluid-membrane lens for which we modelled the fluid-structure interaction and resulting membrane deformation in COMSOL Multiphysics®.
Hitesh Gowda Bettaswamy Gowda +1 more
doaj +1 more source
A Wireless, Passive Multimodal Wearable Sensor With Decoupled Sensing Capabilities
Advanced Materials, EarlyView.A wireless passive multimodal electronic skin is presented for the simultaneous perception of pressure, humidity, and odor through a frequency‐divided LC resonator array. The decoupled sensing architecture suppresses cross‐interference and enables independent signal readout under superimposed stimuli while maintaining high stability.
Wenjiang Han +8 more
wiley +1 more source
Electrochromic Adaptive Solar Heater and Sub‐Ambient Passive Daytime Radiative Cooler
Advanced Materials, EarlyView.An electrochromic Cu–Bi nanocluster device dynamically switches between solar heating and daytime sub‐ambient radiative cooling without mechanical motion. Defect‐activated graphene, minimized electrolyte loss, and pulse‐assisted reversible electrodeposition enable opposite solar and mid‐infrared modulation in one opaque platform, establishing a design ...
Chenxi Sui +11 more
wiley +1 more source
Advanced Materials, EarlyView.Reducing Ni nanoparticle coverage on n‐Si photoanodes enhances photovoltage by promoting thicker interfacial SiOx formation during photoelectrochemical oxygen evolution reaction (OER). Experiments, analytical modeling, and finite‐element simulations reveal that coverage‐dependent chemical interface evolution, rather than geometric effects alone ...
Aarti Mathur, Ahmet Sert, Suljo Linic
wiley +1 more source
Advanced Materials, EarlyView.We show that sol‐gel‐fractured indium–magnesium oxide combines deep‐ultraviolet responsivity, high carrier mobility, and an excellent memory dynamic range. This unique materials platform enables deep‐ultraviolet long‐afterglow light‐emitting devices with multifunctional integration.
Zhongshi Ju +9 more
wiley +1 more source
Examining the role of the hole and the orientation of the baffle on the loss of sound transmission in reactive mufflers using COMSOL software simulation [PDF]
طب کارIntroduction: Nowadays, noise pollution in the environment has become as a worldwide health concern. A large share of this noise comes from vehicles, where mufflers in their exhaust systems are essential for lowering engine noise levels.
Iraj Alimohammadi +3 more
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