Results 101 to 110 of about 19,278 (163)
Dianci bileiqi为充分了解避雷器用热爆式脱离器的机械特性和动作特性的现状，研究了被普遍采用的电工胶木、铝合金、ABS等5 种材质做为外壳的热爆式脱离器的拉伸、弯曲和扭矩破坏负荷的破坏形式、力值范围及平均值；从脱离器的内部结构、动作原理和安秒特性等方面进行了分析研究，为提高脱离器的性能以及相关标准的制修订提供了支撑。
桑建平, 李媛
doaj
Zhongguo shiyan zhenduanxue, 2013 目的评价缺血修饰白蛋白（IMA）与动态心电图（DCG）联合检查对无症状心肌缺血的临床诊断价值。方法对106例疑诊冠心病无症状心肌缺血患者进行缺血修饰白蛋白测定及动态心电图检查,并与冠状动脉造影（CAG）检查结果对比分析。结果 106例疑诊患者中,IMA诊断无症状心肌缺血的特异性为72.7%,敏感性为91.9%;DCG诊断无症状心肌缺血的特异性为81.8%,敏感性为83.8%;IMA联合DCG诊断无症状心肌缺血,将其中一项阳性作为诊断参考时,特异性为72.7%,敏感性为96.7 ...
周智
doaj
Functional Ecology, Volume 40, Issue 2, Page 534-552, February 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Non‐structural carbohydrates (NSC) are critical mediators of plant adaptation to fluctuating light environments. They are tightly coordinated with plant economic strategy, that is, leaf economics spectrum (LES) and root economics spectrum (RES).
Lulu Xie +6 more
wiley +1 more source
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Exploring heat tolerance and acclimation capacity can provide an effective approach to evaluating species’ sensitivity to extremely high temperatures due to climate warming. Despite some work on amphibian and reptile thermophysiological adaptation, related questions remain. We reviewed the literature to provide a synthesis of worldwide data on
Zijian Sun +8 more
wiley +1 more source
Mitigating light pollution impacts on arthropods based on light‐emitting diode properties
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Light pollution from artificial light at night (ALAN) is a significant environmental problem with far‐reaching consequences for ecological systems. Recent innovations in light‐emitting diode (LED) technology may offer sustainable outdoor lighting solutions, but scientific evidence is lacking. We investigated the effects of various LED lighting
Nicola van Koppenhagen +3 more
wiley +1 more source
Gaoya dianqi, 1978 触头行程机构是开关整个操作系统的一部份,它决定触头的行程和运动轨迹,显示触头的运动速度和负荷特性。因此,对它的分析,是设计计算操作系统一系列构件的基础。作为触头行程机构的一般四杆件,已在上章中作了分析。本章中要讨论的是直线和近似直线机构的特性,包括以下几个内容。
doaj
Shuitu Baochi Xuebao, 1995 从水力学与泥沙运动力学观点，对初生态侵蚀性坡面薄层水流的基本动力特性，如流产；充态、临界水深、阻力系数等几个基本问题，作了半理论性探讨。
沙际德 蒋允静
doaj
International Journal of Applied Linguistics, Volume 36, Issue 1, Page 393-408, February 2026.ABSTRACT Acknowledging the limitations of existing measurement instruments in adequately capturing the distinct cognitive processes (e.g., form‐focused vs. meaning‐focused) involved in informal digital learning of English (IDLE), this paper asserts a pressing need to develop and validate robust instruments that measure form‐focused and meaning‐focused ...
Minlin Zou +3 more
wiley +1 more source
Dianci bileiqi, 1985 本文介绍了西安高压电瓷厂按照引进GE公司SiC避雷器制造技术试制的FCZ10—444、468避雷器的基本原理、结构持点,并对其电气性能、耐震能力等特性作了较全面的介绍。其性能在SiC避雷器中具有国际水平。其中操作动作负载试验、震动台振动试验及污秽试验,在国内对500kV超高压避雷器均属首次进行。
段庆成, 张运庭, 欧阳昌宜
doaj
International Journal of Applied Linguistics, Volume 36, Issue 1, Page 522-539, February 2026.ABSTRACT This paper examines the features of metadiscourse across different teacher moves in university linguistics classroom discourse and the teaching strategies reflected in its use. The results reveal that teachers employ diverse metadiscourse during classroom interactions to support student reasoning.
Jingjie Li, Wenjie Hu
wiley +1 more source