Results 21 to 30 of about 6,673 (112)
Sexuality, Gender &Policy, Volume 8, Issue 4, November 2025.ABSTRACT For over 30 years, the northern Mexican state of Chihuahua bordering Texas and New Mexico has experienced and witnessed multiple forms of violence across its rural and urban regions. Communities are besieged with cartel and gender‐based violence and the saturation of international corporations that pay less than livable wages for workers in ...
Sylvia Fernández Quintanilla +1 more
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Review of Policy Research, Volume 42, Issue 6, Page 1509-1524, November 2025.ABSTRACT This paper provides a retrospective on California's oversight of 1,3‐dichloropropene (1,3‐D). It utilizes archival documents, including internal memos, emails, and risk assessments, to demonstrate how the state's Department of Pesticide Regulation consistently expanded allowable 1,3‐D use while presenting each policy change as scientifically ...
Kaitlyn Alvarez Noli
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The Two Faces of Introgression in Conservation Biology 基因渗入在保育生物学中的双重面貌
Integrative Conservation, Volume 4, Issue 3, Page 339-344, September 2025.Conservation biologist need to take into account the various aspects of introgression in their attempts to protect the species integrity and evolutionary potential of threatened species. To do so, they have to overcome the bias created by the Mayrian species concept that considers species as having distinct gene pools.
Harald Schneider, Charles H. Cannon
wiley +1 more source
Sexuality, Gender &Policy, Volume 7, Issue 4, Page 348-365, November 2024.Abstract In the armed conflict between Kashmiri militancy and the Indian state forces, Kashmiri women have been relentless victims of abduction, rape, molestation, and cruel objectification by the militaristic patriarchs of both sides. In the context of the state's unaccountability, the rebuttal of justice is horrific in Kashmir.
Payel Pal, Goutam Karmakar
wiley +1 more source
Core concerns: The need for a governance framework to protect global Internet infrastructure
Policy &Internet, Volume 16, Issue 2, Page 411-427, June 2024.Abstract The war in Ukraine has underscored the risks and threats to global Internet infrastructure from geopolitically motivated cyber operations. The Domain Name System and core protocols responsible for the routing, forwarding, and security of Internet traffic have been exploited by actors in Russia and Ukraine for denial‐of‐service attacks ...
Dennis Broeders, Arun Sukumar
wiley +1 more source
Dianci bileiqi, 1972 引言影响胶纸套管芯子的介损,有多方面的因素,最基本的应是胶粘剂的介损。用胶饼作为试样测定胶粘剂介损是较简便的方法。但要求测试准确可靠,才有助于选择粘剂的配方和改进制胶工艺,进而稳定或提高套管芯子的质量。试验的主要内容是:1 ...
西安绝缘材料厂
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Gaoya dianqi, 1996 一、中压开关一般的技术课题 1.小形化 为了实现小形化,对中压开关进行了绝缘技术的多种研究,其中有气体绝缘方式、复合绝缘方式、固体绝缘方式、高压力SF6气体绝缘方式、低压力SF6气体绝缘方式和SF6气体其它气体混合的绝缘方式等。复合绝缘方式有隔极绝缘和涂覆绝缘。隔极绝缘因在相间和相地间插入苯酚等绝缘板,使耐压提高1.5倍。涂覆绝缘是把带电部位用绝缘物覆盖,导体的涂覆绝缘有环氧粉末流动浸渍法和热收缩真空管法。固体绝缘方式的是采用将苯酚树脂注入主回路带电部位。 由于采用以上绝缘方式 ...
石春让
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Gaoya dianqi, 1998 【问】10kV手车柜绝缘结构有哪些必改项目? 【答】京津唐电网规定的手车柜绝缘结构必改项目有 1)材料:酚醛树脂、聚氯乙烯及聚碳酸酯等材料更换为机械、电气性能合格的阻燃型绝缘材料; 2)外绝缘爬电比距（爬电距离比最高工作电压）:有机绝缘:20mm/kV;无机绝缘:18mm/kV; 3)复合绝缘空气间隙≥30mm绝缘隔板表面爬距应≥150mm,全空气绝缘≥125mm如果达不到要求可加绝缘隔板; 4)柜与柜在母线间隔处加装隔板,绝缘隔板或金属绝缘套管;
林立生
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Gaoya dianqi, 2018 采用复合绝缘代替纯空气绝缘的金属封闭开关柜,实现了空气绝缘开关柜的小型化。但其多种绝缘介质以及绝缘界面共存的复杂结构,对电场分布以及其绝缘能力的评估带来了很大的困难。文中针对空气绝缘开关柜中的固封—手车式断路器触臂处复合绝缘结构进行了研究,通过对不同绝缘结构和绝缘材料在各电气间隙情况下的绝缘能力进行仿真和试验,结果表明:电场仿真中的最大电场强度不能作为评判复合绝缘击穿的标准,复合绝缘结构中的关键部位,如小间隙、界面等处的电场大小对绝缘耐受能力具有决定性的意义 ...
谭东现 +5 more
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±800 kV输电线路直流绝缘子串分布电导模型及其对电压和泄漏电流的影响研究
Gaoya dianqi, 2020 直流绝缘子串泄漏电流不仅是绝缘子金具腐蚀的主要原因,同时也是在线监测的一项重要指标。为了研究直流绝缘子串上不同位置绝缘子金具上的泄漏电流的组成及分布特性,文中建立了直流绝缘子串三维有限元模型,研究了绝缘子串上金具对导线、大地,以及绝缘子金具之间的电导,分析了绝缘子金具处泄漏电流的影响因素及分布特性。结果表明:直流绝缘子串不同位置金具上的泄漏电流存在较大的差异;绝缘子金具泄漏电流分为沿面泄漏电流和空间泄漏电流,沿面泄漏电流沿着绝缘子串表面流动,空间泄漏电流的一部分在绝缘子金具、空气、杆塔、大地之间流动 ...
曹晓斌 +4 more
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