Results 21 to 30 of about 10,467 (165)
Dianci bileiqi, 2002 按照 JB5 892 - 1 991标准对型式试验的相关规定 ,结合本公司进行产品型式试验的经验和体会 ,介绍了棒形悬式复合绝缘子型式试验所用试品、试品数量、试品的准备及注意事项 ,提出了满足试验要求而且具有经济技术合理性的方法。
侯文千, 武怀永
doaj
Realization mechanism and performance of room-temperature gas sensors [PDF]
, 2016 降低工作温度对于提高气体传感器的安全性，增加便携式或可穿戴设备的续航时间和组建高可靠性的无线传感网络有至关重要的作用。然而对于金属氧化物气体传感器来说，工作温度的降低并不是一件简单的事情。任何定量检测的本质都是事先构建一个可量化的不稳定平衡，然后让待测物打破这个平衡来获得响应。把传感器看作一个封闭系统，工作温度的降低意味着系统稳定性的增强，以至于在较低的温度下电流（或电压）平衡难以被痕量待测气体的出现所打破。近年来有研究表明借助紫外光活化可以显著地降低气体传感器的工作温度，甚至实现了对多种气体的室温检测，
刘彬
core
Experimental Investigation on Viscosity of Latent Heat Nanofluids [PDF]
, 2011 TiO2-BaCl2-H2O is a kind of new latent heat nanofluids which can be used for phase change cool storage.The influences of volume fraction of TiO2 nanoparticles and temperature on the viscosity of latent heat nanofluids TiO2-BaCl2-H2O are measured.The ...
core +1 more source
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract In the era of the sixth mass extinction, reversing global biodiversity loss is of vital importance for life on Earth. In 2022, parties to the Convention on Biological Diversity (CBD) adopted the Kunming‐Montreal Global Biodiversity Framework (GBF), a strategic plan with 23 action‐oriented targets to be achieved by 2030.
Ina Lehmann +3 more
wiley +1 more source
Gaoya dianqi, 2015 金属化膜电容器具有高储能密度、高可靠性和高寿命特点。自愈是导致电容器电容量下降的主要原因。笔者分析金属化膜的自愈特性和电容量下降机制,通过研究自愈过程中的自愈面积、自愈能量和击穿电压的关联性,得出电压幅值和电压反峰比对电容器的寿命影响程度并归纳出经验公式。通过对金属化膜电容器的寿命测试,对经验公式中的系数进行拟合。最后得出不同电压幅值和不同电压反峰比下电容器寿命经验型预测公式。
于成龙, 杜涛, 李化, 李智威
doaj
Study on controllable growth and surface doping of large area CVD graphene [PDF]
, 2015 对石墨烯进行一定程度的改性是开发和实现其应用不可或缺的步骤。化学方法可能是最好的方法之一，目前，基于化学改性的石墨烯开发的触摸屏、超级电容、光电器件等应用已经取得了巨大的突破，越来越多的人们开始尝试通过化学的方法改善石墨烯的某一处或几处不完美之处，探索石墨烯在更多领域的应用。在实现其广泛应用的道路上，高质量石墨烯的可控制备同样是一个急需解决的问题。 本文在铜基CVD法石墨烯制备技术基础上，利用同位素标定及Raman、SEM等表征技术，在石墨烯生长机理 ...
黄志艺
core
Police Cloud: Functional modularity in China's cloud public security infrastructure
Regulation &Governance, Volume 20, Issue 1, Page 90-104, January 2026.Abstract Globally, China's Ministry of Public Security has one of the largest appetites and regulatory scopes for new technology use in policing. Using the case study of Police Cloud—a cloud infrastructure project, this paper examines a national wave of cloud migration initiated in Shandong in 2013.
Ausma Bernot
wiley +1 more source
World Medical &Health Policy, Volume 17, Issue 4, Page 831-853, December 2025.ABSTRACT This article aims to sort out the meaning of the term “health nationalism,” operationalize this term and analyze this phenomenon in opposition to the cosmopolitan health policy model. Here, health nationalism is treated as a serious obstacle to access to healthcare and a cultural‐ideological barrier to equity in global public health. Two ideal
Piotr Żuk, Paweł Żuk
wiley +1 more source
Isometric contraction of skeletal muscle with multiple parameters [PDF]
, 2016 2006-2007 > Academic research: refereed > Publication in refereed journalVersion of ...
Hu, YH, Shi, J, Zheng, YP
core
Mobilizing fears? How proximity to deportation threat affects political participation
Policy Studies Journal, Volume 53, Issue 4, Page 1138-1151, November 2025.Abstract Policies often provoke political changes, which are collectively known as feedback effects. Studying state variation in immigration policy, scholars have shown that proximity to hostile policy tends to mobilize Latinos. But not every member of the Latino community is likely to perceive the same proximity to anti‐immigrant policies.
Mackenzie Israel‐Trummel +2 more
wiley +1 more source