Results 171 to 180 of about 73,972 (294)

A 2-6 GHz Ultra-Wideband Shared-Aperture Antenna Array for 5G Multi-Band Base Station. [PDF]

Micromachines (Basel)
Yang L, He J, Gao Y, Wang Y, Wang J.
europepmc   +1 more source

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

Advanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo, Jiawang Zeng, Qian Chen, Valentin A. Bobrin, Deepak Mishra, Anthony Chun Yin Yuen, Yixia Zhang, Cyrille Boyer, Jin Zhang   +8 more
wiley   +1 more source

Research on a comprehensive compensation strategy for continuous cable traction power supply system based on adaptive impedance matching network

机车电传动
To mitigate excessive along-line voltage rise caused by capacitive reactive power of cables in conventional continuous cable power supply systems, this paper proposes a comprehensive compensation strategy that adaptively matches the cables' reactive ...
SUN Wei, MA Bin, FENG Jinwei, WANG Shuai
doaj  

Ultra-Wideband Quad-Parallel Shunt-Diode Rectifier for Sub-6 GHz Wireless Power Transfer. [PDF]

Micromachines (Basel)
Zuhur S.
europepmc   +1 more source

Structural and Chemical Engineering of Sub‐Nanochannel Membranes Toward Ion Selectivity

Advanced Functional Materials, EarlyView.
This review summarizes recent advances in structural and chemical engineering of sub‐nanochannels for ion selectivity. We first introduce fundamental ion transport mechanisms within sub‐nanochannels, followed by strategies to tune pore size, geometry, and surface functionalities, categorized into charge‐based, ion‐recognition, hydrophilic bonding, and ...
Yuyu Su, Huacheng Zhang, Tamar L. Greaves, Qi Han, Weiwei Lei, Dan Liu   +5 more
wiley   +1 more source

Design of Dual Continuous-Mode Class-J Power Amplifiers with Harmonic Matching Networks for X and Ku Bands. [PDF]

Micromachines (Basel)
Yuan Y, Zhao X, Fan J, Yu Z.
europepmc   +1 more source

Unlocking Multi‐Valley Energy Pockets and Interface‐Induced Phonon Filtering in InSb Thermoelectrics by Reaction‐Driven Interface Engineering

Advanced Functional Materials, EarlyView.
InSb, a narrow‐bandgap semiconductor with high carrier mobility, is promising for thermoelectric energy conversion but suffers from high lattice thermal conductivity and strong bipolar conduction. Here, in situ interface engineering using Co2O3 nanoprecursors forms hierarchical CoSbx/In2O3/CoSb3 heterostructures that enhance phonon scattering and ...
Jiwu Xin, Xiao Yang, Xiao‐Lei Shi, Chengyun Xu, Xi Ling, Pengyu Zhang, Jinfeng Dong, Yong Du, Haisheng Chen, Ting Zhang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

One-dimensional well-defined peapod Co_xNi_y@C nanocomposite hollow nanorod towards enhanced electromagnetic performance. [PDF]

Adv Compos Hybrid Mater
Liang Y, Qiu J, Zhang M, Li X, Sun X, He D, Wang X, Lei H, Liu TX, Liu B.   +9 more
europepmc   +1 more source

Engineering Intelligent Graphene Oxide‐Cellulose Membranes: Suppressing Thermal Runaway for a Safer Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
A novel thermos‐responsive hydroxypropyl cellulose/graphene oxide (HPC/GO) composite membrane is fabricated for reversible temperature‐gated ion transport in aqueous zinc‐ion batteries. Enabled by LCST‐driven structural transition, unimpeded ion diffusion at room temperature delivers high capacity, while elevated temperature suppresses transport; full ...
Xueli Bi, Kou Yang, Shushen Zheng, Juncheng Wang, Meng Li, Zhenzhen Wu, Yulin Zhong, Daria V. Andreeva, Kostya S. Novoselov, Shanqing Zhang   +9 more
wiley   +1 more source

Design of a Low-Noise 2.4/5.5 GHz Dual-Band LNA Based on Microstrip Structure. [PDF]

Micromachines (Basel)
Zhang M, Cheng Z, Gong T, Zheng B, Zhang Z.   +4 more
europepmc   +1 more source