Results 1 to 10 of about 2,285 (115)

Discharge characteristics and discharge simulation model of long air gaps containing a floating conductor [PDF]

open access: yes, 2022
Long air gaps containing a floating conductor are common insulation types in power grids. During the transmission line live-line work, the process of lineman entering the transmission line air gap constitutes a live-line work combined air gap, which is a
Gao, Jiachen <1995>
core   +1 more source

Mitigation methods and their applicability for DC stray current interference [PDF]

open access: yes, 2016
Through indoor simulated experimental equipment,mitigation methods which contained the bond resistor method,galvanic anode method and metallic shield method were studied to mitigate DC stray current interference caused by the impressed current cathodic ...
DU Yan-xia, LI Wei, WANG Jie-jun
core   +1 more source

埋地燃气钢管外防腐层检测方法研究

open access: yes, 2022
论文结合南昌市燃气集团湾里站—乐化站一标段高压燃气外防腐层及阴极保护电位与干扰电流检测项目的检测数据作为数据依据,介绍了通过交流电流衰减法(多频管中电流法)、交流电位梯度法技术检测燃气管道外防腐层总体质量状况及外防腐层破损情况。
陈 胜强
core   +1 more source

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

活性炭的电化学再生技术研究 [PDF]

open access: yes, 2000
本文在研究颗粒状活性炭对苯酚的吸附性能的基础上应用正交试验 方法对电化学再生活性炭工艺进行最优化设计并讨论了电化学再生活性 炭的机理分别从搅拌槽再生和固定床再生两个方面研究了活性炭电化学 再生技术结合活性炭吸附与活性炭电化学再生特点应用固定床填充电 极反应器处理含酚废水 三参数Redlich-Petersen等温线方程能够最好描述苯酚25时在活性炭上的吸附行 为pH值对苯酚在活性炭上的吸附影响较大温度对活性炭吸附苯酚能力的影响不大添 ...
Grindhammer, G   +3 more
core   +1 more source

掺杂氧化锑对氧化锌电阻片性能的影响

open access: yesDianci bileiqi, 2020
通过改变氧化锑的含量,分析不同含量对氧化锌电阻片电位梯度、泄漏电流等性能的影响。氧化锑在烧结过程中与氧化锌可以形成尖晶石相,可以抑制氧化锌晶粒尺寸的大小,进而调整电阻片电位梯度。在传统五元配方体系中,通过改变氧化锑的增加,电阻片收缩率逐渐增大,致密度逐渐增加;掺杂适量的氧化锑可以提高电位梯度,降低泄漏电流;掺杂过量的氧化锑会降低电位梯度。
刘亚芸, 厍海波, 杨军, 刘明新
doaj  

Cloning and expression analysis of calcium-activated potassium channel and voltage-gated calcium channel gene in the mud crab, Scylla paramamosain [PDF]

open access: yes, 2013
离子通道是位于细胞膜表面的一种膜蛋白,为各种无机离子跨膜运输提供通路。离子通道的主要功能是通过启闭通道控制离子进出细胞,启动细胞内信号传导系统,激活细胞内各种重要的生理活动。迄今甲壳动物离子通道的研究尚少。本文采用分子生物学等方法对拟穴青蟹(Scyllaparamamosain)钙激活钾通道与电压门控钙通道β亚基基因开展了克隆与表达的研究。主要结果如下: 1)获得拟穴青蟹钙激活钾通道基因(SPSlo)的6种剪接异构体(splicevariants),并发现7个选择性剪接位点 ...
刘学良
core  

Electrolyte With Functionalized Boron Nitride Nanosheets for Dendrite‐Free Lithium Metal Anodes

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Lithium metal batteries (LMBs) are regarded as promising candidates for the next‐generation high‐energy‐density storage systems due to their unparalleled theoretical energy density and low redox potential. However, the commercialization of LMBs is tremendously plagued by the barbaric growth of lithium dendrite and the intricate decomposition ...
Ji Zhou   +5 more
wiley   +1 more source

PROGRESS IN ELECTROCHEMICAL PROTECTION FOR STEEL REINFORCING CONCRETE STRUCTURES [PDF]

open access: yes, 2000
作者简介:邱富荣,男,1940年出生,副研[中文文摘]综述了钢筋混凝土构筑物电化学保护的发展和现状 ,包括牺牲阳极系统和外加电流系统 .内容涉及对不同类型、不同龄期构筑物的保护标准、保护参数选择、保护效果的评价以及检测、监测等诸方面 .认为有必要加强电化学驱氯、电化学再碱化等新技术的研究 ;根据构筑物的不同使用环境 ,采用多种有效的、综合的保护措施.[英文文摘]The electrochemical protection mostly in terms of cathodic protection ...
余兴增(中国科学院福建物质结构研究所二部)   +3 more
core  

Coalescence‐Ripening Mechanism of γ′−Ni3(Al, Ti) During Long‐Term/High‐Temperature Operation of Ni‐Based Superalloy Discs

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The evolution of the γ′−Ni3(Al, Ti) phase in superalloys is governed by a coupled coalescence‐ripening mechanism driven by elemental diffusion. In this study, thermal exposure experiments were performed at 750°C and 800°C for durations ranging from 100 to 20,000 h.
Zhaotian Wang   +5 more
wiley   +1 more source

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