Results 101 to 110 of about 82,151 (249)

Atom–Cluster Synergy in Scalable Fe–Ru Dual‐Site Architectures Accelerates Alkaline Hydrogen Evolution

Advanced Materials, EarlyView.
A mechanochemically synthesized dual‐site electrocatalyst (RuNC@Fe1NC) accelerates alkaline hydrogen evolution via atomic‐level spatial decoupling. Oxophilic Fe single atoms effectively dissociate water, while adjacent Ru nanoclusters rapidly recombine hydrogen.
Jae‐Hoon Baek, Seong Hyeon Kweon, Sun Gwan Cha, Se Jung Lee, Jinwoo Baek, Dong Hyeok Kwon, Hojeong Lee, Youngkook Kwon, Sang Kyu Kwak, Jong‐Beom Baek   +9 more
wiley   +1 more source

A novel fabrication process for capacitive cantilever structures for smart fabric applications [PDF]

, 2012
This paper reports, for the first time, capacitive freestanding cantilever beams fabricated by screen printing sacrificial and structural materials onto a fabric/textile.
Torah, Russel, Beeby, Steve, Tudor, J, Torah, R, Yang, Kai, Wei, Yang, Yang, K, Tudor, John, Wei, Y, Beeby, S   +9 more
core   +1 more source

A Multifunctional Ionograsper Enabling Ion‐Redistribution Proximity Sensing and Structural‐Reconfiguration‐Driven Bidirectional Actuation

Advanced Materials, EarlyView.
A solid‐state ionic actuator integrates sensing, actuation, and memory within one material. A brief UV pulse induces long‐lasting deformation via coupled network rearrangement, dehydration, and rehydration, while ionic redistribution enables self‐powered sensing, supporting multifunctional, energy‐efficient soft robotic functions without continuous ...
Yong Min Kim, Jin Han Kwon, Hyeon Woo Yang, Sungryong Kim, Gyeong Rok Lee, Hong Chul Moon   +5 more
wiley   +1 more source

Rounded-corner plate geometry for edge effects mitigation in capacitive wireless power transfer systems

Results in Engineering
The capacitive wireless power transfer (CPT) systems are limited by the low coupling capacitance and high voltage stress levels constraints. The localized electric field (E/F) intensifications restrict the safe voltage levels and increase the risk of ...
Maha B. Hussein, Yasir M.Y. Ameen
doaj   +1 more source

Tunable multimode interference coupler [PDF]

, 2007
An electrically tunable multimode interference (MMI) coupler/splitter is demonstrated. The device operates by modifying the phase of the multiple self-images that are formed around the midpoint of the MMI structure.
JOSE JAVIER SANCHEZ MONDRAGON, DANIEL ALBERTO MAY ARRIOJA, CELSO VELASQUEZ ORDOÑEZ   +2 more
core  

Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon

Advanced Materials, EarlyView.
We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra, Tobias Schwaigert, Yingxin Zhu, Aiden Ross, Muhammad Aminul Haque Chowdhury, Shun‐Li Shang, Sameer Singh, Zhiyu Zhang, Zhe Wang, Brynn Brower, Saugata Sarker, Suchismita Sarker, Zi‐Kui Liu, Rama K. Vasudevan, Long‐Qing Chen, Yang Yang, Darrell G. Schlom, Venkatraman Gopalan   +17 more
wiley   +1 more source

A design of compact reflective analog phase shifter

Dianzi Jishu Yingyong
This paper proposes a miniaturized analog reflective phase shifter operating in the ISM band. Based on a 3 dB directional coupler as the core topology, the circuit integrates fan-shaped resonators at key nodes of the transmission line.
Lu Tao, Huang Heping, Yang Bo, Lu Feifan
doaj   +1 more source

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

Advanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim, Haeseong Kim, Joo Hwan Ko, Gil Ju Lee, Dae‐Hyeong Kim, Young Min Song   +5 more
wiley   +1 more source

Soft and Transient Bioelectronics Enabled by Polymer‐Free Ti3C2Tx MXene Hydrogels

Advanced Materials, EarlyView.
We present Ti3C2Tx MXene hydrogel (MXgel) bioelectronics, a soft, flexible, and fully transient platform for high‐fidelity neural recording and stimulation. MXgel bioelectronics exhibit exceptional electrical conductivities, low electrochemical impedances, and high charge injection capacities.
Raghav Garg, Franco A. Laimo, Stefano Ippolito, Prastuti Upadhyay, Spencer R. Averbeck, Dimitris Boufidis, Charles‐Antoine Assenmacher, Dayo O. Adewole, Sai Panigrahy, Bita Soltan Mohammadlou, Lucy Plant, Yuan Zhang, Andrew G. Richardson, Yury Gogotsi, D. Kacy Cullen, Flavia Vitale   +15 more
wiley   +1 more source

Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging Applications

Applied Sciences
A detailed theoretical design of an electric resonance-based coupler for dynamic wireless power transfer (DWPT) at the mobile robot level is presented. The scattering matrix of the coupler was derived by transforming and multiplying transmission matrices
Hongguk Bae, Sangwook Park
doaj   +1 more source