Results 71 to 80 of about 1,916 (295)

Electrocapillary Modulated Interfacial Tension Amplifies Liquid Metal Transduction

Advanced Functional Materials, EarlyView.
This study presented an electrocapillary‐enhanced magnetohydrodynamic pumping strategy that harnesses the Lorentz force and interfacial tension modulation of liquid metal droplets to achieve amplified fluidic power. The system enabled low‐voltage, self‐oscillating fluidic transduction with enhanced pressure and flow generation, supporting compact ...
Saba Firouznia, Ciqun Xu, Michael D. Dickey, Jonathan Rossiter   +3 more
wiley   +1 more source

Thermally Pre‐Formed Reconfigurable Resistive Random‐Access Memory Crossbar Arrays: A Dual‐Mode Platform for Robust Physically Unclonable Functions and In‐Memory Computing

Advanced Functional Materials, EarlyView.
A reconfigurable RRAM platform utilizing thermally pre‐formed filaments (TPFs) is developed to realize robust hardware security. By exploiting the thermodynamic stochasticity of TPFs, exceptionally reliable physically unclonable functions (PUFs) are achieved.
Seongbin Kwon, Taewon Lee, Dohyeong Kim, Sungmin Hwang, Sungjoon Kim   +4 more
wiley   +1 more source

Modeling and Prediction Analysis of Magnetic Field in DC Yard of VSC-HVDC Station under Short Circuit Condition

Zhongguo dianli, 2021
For the voltage source converter based high voltage direct current (VSC-HVDC) station equipped with hybrid DC breakers, the DC circuit breaker has fast speed for breaking fault current and short time for internal commutation.
Meng BAO, Hong SHEN, Jialiang LI, Yan SHI, Lei QI, Qian WANG   +5 more
doaj   +1 more source

Time‐Resolved Magnetization Switching Dynamics Driven by Orbital Torques

Advanced Functional Materials, EarlyView.
Du et al. reveal nanosecond magnetization switching driven by orbital currents using time‐resolved Hall detection. The measurements separate domain nucleation from domain wall propagation and show that Joule heating strongly assists switching by lowering energy barriers.
Ao Du, Shilei Ding, Min‐Gu Kang, Marco Hoffmann, Pietro Gambardella   +4 more
wiley   +1 more source

Design of a Solid State Circuit Breaker Using a SiC MOSFET for LVDC Applications

IEEE Access
In this paper, a solid state circuit breaker(SSCB) for a low voltage direct current (LVDC) system is presented. The LVDC distribution system such as a household distribution, require a DC input source, DC loads, and a DC circuit breaker.
Byong Jo Hyon, Poo Reum Jang, Dongmyoung Joo, Yong-Su Noh, Jun-Hyuk Choi, Sang Bin Lee   +5 more
doaj   +1 more source

Performance Evaluation and Limitations of Overvoltage Suppression Circuits for Low- and Medium-Voltage DC Solid-State Breakers

IEEE Open Journal of Power Electronics, 2021
This paper presents a design and performance evaluation of three different overvoltage suppression circuits employed in a solid-state circuit breaker for medium- to high-power and low- to medium-voltage DC grids.
Andreas Giannakis, Dimosthenis Peftitsis
doaj   +1 more source

Polymer‐Redox Interactions Enhance Ferro/Ferricyanide Thermogalvanic Cells

Advanced Functional Materials, EarlyView.
Polyelectrolyte could modify the hydration structure of the redox couple in solution and improve the output performance of thermogalvanic cells, providing new fundamental insight into how electrostatic interactions can be exploited to tailor thermoelectric properties.
Pedro Santos Candiotto de Oliveira, Ziyauddin Khan, Swathi Suneesh, Sarbani Ghosh, Zia Ullah Khan, Reverant Crispin, Dan Zhao   +6 more
wiley   +1 more source

Prediction and Analysis of Transient Electric Field in DC Yard of Flexible Converter Station Under Short-Circuit Conditions

Zhongguo dianli, 2021
In the case of short-circuit fault, the flexible DC converter station would produce transient yet strong electromagnetic field, which would impact on the secondary equipment in the converter station.
Sihang WU, Hong SHEN, Lei QI, Peng QIU, Zhaoxia KUAI   +4 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Superconducting dc Current Limiting Vacuum Circuit Breaker

, 2012
Acircuitofadc superconductingfault current limiter witha direct current circuit-breaker fora nominal current 300A is proposed. It includes the 2G high temperature superconducting (HTS) tapes and the high-speed dc vacuum circuit breaker.Thetestresultsof ...
Budovskii, A.I., Yevsin, D.V., Sidorov, V.A., Akhmetgareev, M.R., Ivanov, V.P., Alferov, D.F., Bunin, R.A., Tshai, E.V., Degtyarenko, P.N., Voloshin, I.F., Fisher, L.M.   +10 more
core   +1 more source