نتایج جستجو برای: gas insulated substations

تعداد نتایج: 249589  

Journal: :Informatica, Lith. Acad. Sci. 2012
Jianhong Chen Kefei Chen Yongtao Wang Xiangxue Li Yu Long Zhongmei Wan

Key-insulated cryptography is an important technique to protect private keys in identitybased (IB) cryptosytems. Despite the flurry of recent results on IB key-insulated encryption (IBKIE) and signature (IBKIS), a problem regarding the security and efficiency of practicing IBKIE and IBKIS as a joint IB key-insulated signature/encryption scheme with a common set of parameters and keys remains op...

Journal: :Lasers in surgery and medicine 2017
Tae-Rin Kwon Eun Ja Choi Chang Taek Oh Dong-Ho Bak Song-I Im Eun Jung Ko Hyuck Ki Hong Yeon Shik Choi Joon Seok Sun Young Choi Gun Young Ahn Beom Joon Kim

BACKGROUND AND OBJECTIVES Many studies have investigated the application of micro-insulated needles with radio frequency (RF) to treat acne in humans; however, the use of a micro-insulated needle RF applicator has not yet been studied in an animal model. The purpose of this study was to evaluate the effectiveness of a micro-insulated needle RF applicator in a rabbit ear acne (REA) model. STUD...

2014
Xiaoxing Zhang Qinchuan Chen Ju Tang Weihua Hu Jinbin Zhang

The detection of partial discharge by analyzing the components of SF6 gas in gas-insulated switchgears is important to the diagnosis and assessment of the operational state of power equipment. A gas sensor based on anatase TiO2 is used to detect decomposed gases in SF6. In this paper, first-principle density functional theory calculations are adopted to analyze the adsorption of SO2, SOF2, and ...

Journal: :Coatings 2022

Accidents always occur in gas-insulated switchgears (GIS) and lines (GIL) since filmed joint electrodes are produced when internal gases react with the electrode’s surface there is a discharge or electricals overheat. To solve problem, this paper analyzed evolution of elements on contact electrode. The reaction SF6 under breakdown currents overheating conditions was obtained, time current effec...

2017
Dong Yang Ke Li Fuping Zeng Qiang Yao Yulong Miao Lincong Chen

Aimed to clarify the correlation characteristics between the internal partial discharge (PD) in negative direct current (DC) gas insulated system (GIS) and gas pressure initiated by two typical defects (i.e., free-metal particles and metal protrusion), this study on PD decomposition of sulfur hexafluoride (SF6) was investigated under different pressures on the basis of constructing a SF6 decomp...

2004
Zhengyi Le Yi Ouyang James Ford Fillia Makedon

In key-insulated cryptography, there are many private keys with different indexes and a single, fixed public key. When the trust model includes multiple Certification Authorities (CAs), it can be used to shorten the verification path and mitigate the damage caused by the compromise of a CA’s private key. Existing work requires that the total number of CAs be fixed and that a trusted keystore st...

Journal: :Journal of the Korean Institute of Electrical and Electronic Material Engineers 2012

Journal: :Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice 2020

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