Results 101 to 110 of about 470,664 (315)

Harnessing Outer Space for Improved Electrocaloric Cooling

Advanced Functional Materials, EarlyView.
A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo, Hyung Rae Kim, Joo Ho Yun, Hyunkyu Kwak, Do Hyeon Kim, Se‐Yeon Heo, Rujun Ma, Gil Ju Lee, Young Min Song   +8 more
wiley   +1 more source

PROTECTION COORDINATION OF PHOTOVOLTAIC POWER PLANT IN THE TIME DOMAIN [PDF]

Advanced Engineering Letters
The safety of workers and equipment in the power grid requires the shutdown of power plants in case of maintenance or malfunction. The shutdown relies on protective devices that must be properly coordinated to isolate only the part of the grid ...
Josip Čolak, Srete Nikolovsk, Ružica Kljajić, Hrvoje Glavaš   +3 more
doaj   +1 more source

Advanced Micro‐OLED Integration on Thin and Flexible Polymer Neural Probes for Targeted Optogenetic Stimulation

Advanced Functional Materials, EarlyView.
This paper introduces a flexible neural probe with integrated micro‐OLEDs on a flexible substrate for the first time, featuring 8 micro‐OLEDs and recording electrodes for optogenetics. It uses advanced encapsulation and an IAI anode for durability, emitting 470 nm light for ChR2 activation, enabling high‐resolution, minimally invasive stimulation ...
Somin Lee, Mi Kyung Kim, Seonil Kwon, Jia Chee Leong, Byeongju Noh, Junhee Sim, Eun Gyo Jeong, Hyunjoo J. Lee, Kyung Cheol Choi   +8 more
wiley   +1 more source

Bi‐Directional Assembly of Boron Nitride µ‐Platelets by Micro‐Molding for Advanced Thermal Interface Materials

Advanced Functional Materials, EarlyView.
Bi‐directionally assembled BN µ‐platelets in micropatterns formed by a micro‐molding method for thermal interface materials are demonstrated. The BN µ‐platelets are vertically aligned selectively, while compressed regions without patterns accommodate horizontally assembled BN µ‐platelets. Through anisotropic orientation, high thermal conductivities for
Young Gil Kim, In‐Young Jung, Yujin Mun, Joo Hwan Shin, Sang Gil Lee, Gyan Raj Koirala, Taewoo Kang, Jehyung Ok, Hyesu Choi, Jiwon Kim, Youngkwang Shin, Seok Joon Kwon, Tae‐il Kim   +12 more
wiley   +1 more source

Comparison and Design Optimization of a Five-Phase Flux-Switching PM Machine for In-Wheel Traction Applications [PDF]

, 2019
A comparative study of five-phase outer-rotor flux-switching permanent magnet (FSPM) machines with different topologies for in-wheel traction applications is presented in this paper.
Chen, Hao, Demerdash, Nabeel, EL-Refaie, Ayman M., He, Jiangbiao, Liu, Xiangdong, Zhao, Jing   +5 more
core   +1 more source

A novel multi‐slice electromagnetic field‐circuit coupling method for transient computation of long‐distance gas‐insulated transmission lines

High Voltage
Accurate calculation of short‐circuit electromagnetic force is crucial for both mechanical strength check and the optimal design of gas‐insulated transmission lines (GIL).
Shucan Cheng, Yanpu Zhao, Kejia Xie, Bin Hu   +3 more
doaj   +1 more source

Influence of series compensation devices on secondary cables in case of single-phase short-circuit fault

International Journal of Electrical Power & Energy Systems
The installation of a Series Compensation Device (SCD) results in the series capacitive reactance offsetting a portion of the line inductive reactance. In the event of a single-phase short-circuit fault in a system equipped with an SCD, the potential for significant increases in fault current to ground exists if the SCD is unable to respond in a timely
Hongbin Zhang, Hongshun Liu, Zhiyuan Zhang, Luyao Liu, Ali Mohammed Ali Abdo, Dongxin He, Qingquan Li   +6 more
openaire   +2 more sources

Elucidating Sodium Ion Storage Mechanisms in Hard Carbon Anodes at the Electronic Level

Advanced Functional Materials, EarlyView.
High‐resolution, multi‐frequency continuous wave, and pulsed Electron Paramagnetic Resonance (EPR) spectroscopy uncover the intricate Na ion storage mechanisms in hard carbon. This study reveals the coexistence of Na ion intercalation and solvent co‐intercalation, alongside a subsequent transition of Na ions from ionic to quasi‐metallic to metallic ...
Qingbing Xia, Cheng‐Lin Ko, Emily R. Cooper, Qinfen Gu, Ruth Knibbe, Jeffrey R. Harmer   +5 more
wiley   +1 more source

Microwave Slow-Wave Structure and Phase-Compensation Technique for Microwave Power Divider [PDF]

, 2014
In this paper, T-shaped electromagnetic bandgap is loaded on a coupled transmission line itself and its electric performance is studied. Results show that microwave slow-wave effect can be enhanced and therefore, size reduction of a transmission-line ...
Gao, S. S., Li, J. L., Shao, W., Wang, J. P., Yang, X. S.   +4 more
core   +1 more source

Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement

Heliyon, 2021
The present Nigerian transmission network is faced with the difficulty of evacuating and dispatching reliable and quality electricity supply and simultaneously maintaining an operational standard of security to prevent any collapses.
Ademola Abdulkareem, A. Adesanya, A.F. Agbetuyi, A.S. Alayande   +3 more
doaj