Results 51 to 60 of about 233,710 (298)
A Novel Passive Wireless Sensor for Concrete Humidity Monitoring
Sensors, 2016 This paper presents a passive wireless humidity sensor for concrete monitoring. After discussing the transmission of electromagnetic wave in concrete, a novel architecture of wireless humidity sensor, based on Ultra-High Frequency (UHF) Radio Frequency ...
Shuangxi Zhou +5 more
doaj +1 more source
2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics
Advanced Functional Materials, EarlyView.2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit +5 more
wiley +1 more source
Wireless Power Transfer System Architectures for Portable or Implantable Applications
Energies, 2016 This paper discusses the near-field inductive coupling wireless power transfer (WPT) at the system level, with detailed analyses on each state-of-the-art WPT output voltage regulation topologies.
Yan Lu, Dongsheng Brian Ma
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Signal and System Design for Wireless Power Transfer : Prototype, Experiment and Validation [PDF]
, 2020 A new line of research on communications and signals design for Wireless Power Transfer (WPT) has recently emerged in the communication literature. Promising signal strategies to maximize the power transfer efficiency of WPT rely on (energy) beamforming,
Clerckx, Bruno +2 more
core +2 more sources
Advanced Functional Materials, EarlyView.This study demonstrates an artificial polymodal nociceptor whose firing threshold is actively modulated by temperature. A volatile TiN/TiOx/ZnO/TiOx/ITO memristor shows interfacial ion–driven resistive switching and membrane‐potential‐like dynamics, enabling temperature‐dependent nociceptive behavior.
Chanmin Hwang +3 more
wiley +1 more source
EnergiesThis study introduces a novel uninterruptible power supply (UPS) configuration that integrates active power filter (APF) capabilities within a single-phase matrix converter (SPMC) framework.
Muhammad Shawwal Mohamad Rawi +2 more
doaj +1 more source
Sensors, 2019 In the context of the Internet of Things, billions of devices—especially sensors—will be linked together in the next few years. A core component of wireless passive sensor nodes is the rectifier, which has to provide the circuit with ...
Dominik Mair +4 more
doaj +1 more source
Efficient modeling of the wireless power transfer efficiency for varying positions and orientations between transmitter and receiver [PDF]
, 2015 A method that efficiently calculates the Power Transfer Efficiency (PTE) of a Wireless Power Transfer (WPT) system is described in this paper. It allows for arbitrary relative positions and orientations between devices in the system, both in far-field ...
Rogier, Hendrik +2 more
core +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT In this work, we introduce a trifluoromethoxy (OCF3) group as a pseudo‐halogen terminal group design for non‐fullerene acceptors, which combines strong inductive electron‐withdrawing ability with moderate resonance donation. The as‐synthesized BTP‐OCF3, when benchmarked against its methoxy analogue BTP‐OCH3, demonstrates narrowed bandgap ...
Chunliang Li +16 more
wiley +1 more source
Dual-band ambient energy harvesting circuit design
Dianzi Jishu Yingyong, 2018 A low power dual band energy harvesting rectifier is designed ,which is matched by T matching network.Futhermore,two stubs are used to expand the matching bandwidth. The testing result shows that the rectifier matchs well at 1.84 GHz and 2.45 GHz.
Xu Lixiang, You Bin, Hua Fuchun
doaj +1 more source