Results 11 to 20 of about 10,358 (131)
全球能源互联网, 2023 大容量试验是检验电力装备性能，保障装备安全可靠运行的重要环节。现有的大容量试验回路主要依靠人工操作，存在流程复杂、效率低且易出错的问题。针对大容量试验回路智能化控制的难题，研究建立了冲击发电机单电机短路模型和双电机并联短路模型，分析了发电机短路特性，结合典型大容量试验回路设计了一键顺控方案，提出试验回路一键顺控操作流程。通过对发电机短路模型和大容量试验回路系统的仿真，验证了所建发电机短路模型的正确性及大容量短路试验一键顺控方案的合理性。
戴建卓 +7 more
doaj +1 more source
Lughawiyah: Journal of Arabic Education and Linguistics, 2023 This article aims to analyze the beautiful verses of As─ülib Bal─üghiyyah┬á and its meaning in Surah Al-Fath, because Surah Al-Fath has Uslub which contains secrets and wisdom of the victory of Muslims, the forgiveness of Allah S.W.T, as well as the events of B─üiÔÇÖu Ridw─ün and Shulhu-l-Hudaibiyyah, by using very beautiful languages and has a high m ...
Fairuz Subakir Ahmad +3 more
openaire +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Bio‐inspired artificial vision systems have made significant progress, but most focus on photo‐receptors, neglecting the hardware implementation of the efficient downstream neural circuits for complex computations like motion detection. To overcome this bottleneck, we demonstrate a neuromorphic vision system that mimics Drosophila's motion ...
Xianyu Hu +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo +6 more
wiley +1 more source
People and Nature, Volume 8, Issue 6, Page 1705-1727, June 2026.Abstract Active outdoor play has been positioned in the literature as an opportunity to address concerns over climate (in)action and the rising trend of disconnection from the outdoors and nature. The objective of this systematic review was to examine associations between active outdoor play and people's connection to nature and/or environmental ...
Louise de Lannoy +10 more
wiley +1 more source
Journal of Applied Ecology, Volume 63, Issue 4, April 2026.The modified PSR framework proved valuable for assessing conservation effectiveness and identifying research gaps for waterbirds in the EAAF. Recognizing similar threats to other migratory species globally, we urge action to: (1) prioritize regionally relevant research validating frontline conservation actions, (2) enhance communication between ...
Sze‐On Ng +4 more
wiley +1 more source
Growing Demand and Uneven Supply: Eight Years of Nature Education in China 需求增长与供给不均:中国自然教育八年发展回顾
Integrative Conservation, Volume 5, Issue 1, Page 46-58, March 2026.ABSTRACT This study examines the role of nature education in advancing conservation and sustainability in China between 2014 and 2023. Drawing on national survey reports and historical–comparative methods, it analyses the dynamics of public demand, institutional supply, and practitioner capacity.
Qi Yunxi, Lyu Xiang, Huang Yu
wiley +1 more source
Gaoya dianqi, 2011 同塔双回架空输电线路,测量I回线路零序阻抗,II回线路双端短路接地,其三相导线、地线与大地构成零序电流的通路,II回线路亦可等效为连续接地的避雷线,避雷线相当于I回线路的一个二次短路线圈,对I回线路磁场起去磁作用,引起I回线路零序阻抗幅值的降低和相角的变化。笔者理论分析同塔双回输电线路地线连续接地对零序阻抗测量结果准确性的影响,通过EMTP对典型同塔双回输电线路零序阻抗参数进行仿真计算,并且分析了4条500 kV线路、2条220 kV线路的零序阻抗实测结果,提出了现场实际测量中应该注意到的问题 ...
刘博 +5 more
doaj
Gaoya dianqi, 2020 GIS回路中导电接触状态关系到GIS的安全运行。文中通过对GIS回路电阻特性的研究,指出了通过直流法测量回路电阻来评估GIS回路接触状态的不足,发现直流法在测量回路电阻时存在一定随机性,且直流法通流时间短、电流幅值小、没有交流电动力的影响,与实际运行时的设备状况相差较大,不能准确反映GIS回路接触的真实情况,也不能用于对GIS回路电接触劣化程度进行准确评估。为了探究实际运行中导体发热和电动力产生的振动等因素对电接触的影响,文中在GIS设备中通过交流电流进行温升试验,并利用交流法计算了温升过程中回路电阻 ...
高凯 +5 more
doaj
Dianci bileiqi, 2023 加装单相同线安装方式的并联间隙，可有效提升10 kV架空裸导线路的耐雷水平。但目前相关研究仅针对10 kV单回架空线路，多回线路中仍存在并联间隙的安装数量、安装位置和放电电压数值的匹配问题。为此，本研究基于ATP-EMTP软件，搭建10 kV双回架空配电线路雷电过电压仿真模型。针对多回10 kV架空线路，分析了单相安装并联间隙的配置方法，并设计了多回线路耐雷水平的计算流程。以双回线路为计算实例，线路遭受感应雷过电压时，建议在每回线路的最高相上均安装一只并联间隙；线路遭受直击雷过电压时 ...
胡嘉宴, 杨鑫, 汤昕, 王延夫
doaj