Results 71 to 80 of about 1,101,459 (243)
Dirac‐Source Linear X‐Ray Detection Diode
Advanced Functional Materials, EarlyView.Monolayer graphene imparts near linear current‐voltage behavior to a perovskite X‐ray detection diode, contrasting with conventional diode‐like responses. Exploiting graphene's Dirac dispersion and a Schottky‐like back‐to‐back junction, the device achieves six‐orders‐of‐magnitude dark current suppression while retaining linearity over 200 V, enabling ...
Babar Shabbir +8 more
wiley +1 more source
Refurbishment of an 800 kV impulse generator
, 1999 This paper describes work done on refurbishing a Ferranti 800 kV impulse generator. The multi-gap firing system which was originally designed by Ferranti Ltd. to avoid using the traditional variable spark gaps, gradually failed. This has been replaced by
Habtay, Y. +4 more
core
, 2018 The abnormal heating phenomena of contact terminal in large DC current loop of the ultra-high voltage direct current (UHVDC) converter station became one of the most serious problems, which caused serious impact on the operation reliability of the power ...
Dongsheng Lu, Peng Chen, Liang Ma
core +1 more source
Advanced Functional Materials, EarlyView.This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie +13 more
wiley +1 more source
Testing of 800 kV and 1200 kV class circuit breakers
, 2012 The most critical transient a circuit breaker has to endure during its operation is the transient recovery voltage (TRV), initiated by the electric power system as a natural reaction on current interruption.
Smeets, R.P.P. +2 more
core
Gaoya dianqi, 2008 ZF27-800型GIS是为满足我国西北750 kV输电工程自主研发的800 kV气体绝缘金属封闭开关设备。笔者介绍了ZF27-800型GIS的研制情况,主要对800kV断路器的开断系统、绝缘系统、传动系统和动力系统的关键技术进行了分析,还对GIS中的母线、进出线套管的设计技术进行了说明。
韩国辉, 谭盛武, 韩书谟
doaj
Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport
Advanced Functional Materials, EarlyView.Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar +1 more
wiley +1 more source
Comparing the standard knee X-ray exposure factor, 10 kV rule, and modified 10 kV rule techniques in digital radiography to reduce patient radiation dose without loss of image quality [PDF]
Introduction The 10 Kilovoltage (kV) rule was a historic exposure adaption technique designed for film screen X-ray imaging to reduce ionising radiation dose without loss of image quality.
Lockwood, P., Wenman, A.
core +1 more source
Gaoya dianqi, 2007 介绍了直流输电工程采用的直流滤波器的类型与构成,分析了±800 kV特高压直流输电工程换流器在直流侧产生的谐波的特点,并与±500 kV高压直流输电工程做了比较。以实际的±800 kV特高压直流输电工程为例,对换流器在直流线路上产生的等效谐波干扰电流进行了计算,对不同直流滤波器设置方案下的滤波效果进行了比较,并以计算结果为依据提出了较为合理的±800 kV特高压直流输电工程直流滤波器设置方案,为最终确定实际工程直流滤波器方案具有一定的参考作用。
张万荣, 任军辉, 王蔚华
doaj
Seismic evaluation of ±800 kV UHVDC disconnect switch by shake table test
The Journal of Engineering, 2019 Disconnect switches, the widely used electrical substation apparatuses, however, were severely damaged in several earthquakes, causing huge economic losses.
Jiayi Wen, Qiang Xie
doaj +1 more source