Results 41 to 50 of about 1,762 (207)
Revista Brasileira de Cartografia, 2014 Não há como, efetivamente, entender um fenômeno ou processo histórico-geográfico sem se considerar ambos espaço e tempo. Concordando com tal afirmação, os Sistemas de Informações Histórico-Geográficas (HGIS) são cada vez mais utilizados em pesquisas nas ...
Pedro Arias Martins +1 more
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Gaoya dianqi, 2022 文中针对国网公司通用设计方案中220 kV HGIS配电装置占地大、构架设置复杂及进出线型式单一等缺点展开模块化设备选型和布置方案优化研究。文中提出进出线双间隔母线侧“共用套管”和分段—母联公用间隔“共用套管”两种模块化设备，阐述其接线原理、布置方案和不停电检修扩建方案。借助三维设计手段开展配电装置场地优化，通过安全净距校验将双间隔宽度由25 m优化至24.5 m，母线构架宽度由26 m优化至24.5 m，结合吊装模拟验证模块化设备运输方案并优化道路布置。优化后220 ...
周亚龙, 熊静, 陈斌, 王椿丰
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, 1875 Hannibal and St. Joseph Railroad Co.The original of this document is in the Stevens Family Papers, #1210, at the Division of Rare and Manuscript Collections, Cornell University Library, Ithaca, New York ...
Neilson, William H.
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cScience, Volume 1, Issue 1, December 2025.ABSTRACT The steel industry is among one of the largest CO2 emitters in the world. To meet climate targets, replacing fossil‐based carbon with renewable biocarbon in metallurgical processes, particularly in blast furnaces (BFs) and electric arc furnaces (EAFs), has emerged as a viable short‐ to mid‐term solution.
Yu‐Chiao Lu +4 more
wiley +1 more source
Gaoya dianqi, 2021 气体绝缘开关设备（GIS）设备受制造技术、装配工艺、运行环境,等因素影响,运行中可能会出现SF6气体泄漏、局部放电、气室异响,等故障。文中详细介绍了某500 kV混合式气体绝缘开关设备（HGIS）套管SF6气体泄漏异常事件,经解体检查、成分分析后判定是密封圈硅脂涂抹过多,溢出密封槽,长期运行过程中与空气、密封铝板发生化学反应造成密封劣化所致。对该型号套管提出双层密封,加强装配工艺管控,等合理化建议,并对站内同批次的其他套管加装防雨帽、防水伞裙,预防类似现象发生。可为HGIS设备套管漏气分析 ...
吴西博 +4 more
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Financing the Response to AIDS in Low- and Middle-Income Countries: International Assistance From the G8, European Commission and Other Donor Governments, 2008 [PDF]
, 2009 Summarizes 2008 data on international AIDS assistance from donor governments. Presents trends by donor country, by funding channel, on aid as percentages of GDP, and on the gaps between needs and resources and between commitments and ...
Carlos Avila, Eric Lief, Jennifer Kates
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European Journal of Sport Science, Volume 25, Issue 12, December 2025.ABSTRACT Nine ultra‐endurance athletes completed a randomised, crossover trial involving two 28‐day dietary arms during which the athletes consumed a carbohydrate‐rich diet (carbohydrate 58 ± 3, protein 15 ± 2 and fat 26 ± 2%) containing low‐ or high‐glycaemic‐index (LGI or HGI, respectively) carbohydrates.
Ross A. Hamilton +5 more
wiley +1 more source
Gaoya dianqi, 2009 笔者首先简要介绍了HGIS设备的特点、性能以及国产500 kV HGIS开关设备在贵广II回直流工程宝安换流站的应用情况,接着分析了因隔离开关机构箱与设计图存在一些差别导致现场调试过程中出现隔离开关不能正常操作的情况,在分析原始设计图的设计原则的基础上,给出了3种设计变更方案及其优劣性对比,介绍了该站所选方案的具体实现情况,最后给出了在今后的HGIS设计、调试和运行过程中须注意的几点建议。
雷兵, 夏拥
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Halogen bonds between ligands and proteins: Can we use them in validation?
Protein Science, Volume 34, Issue 11, November 2025.Abstract Halogen bonds are polar interactions between a halogen atom and its acceptor. They have characteristic geometry induced by the positively charged σ‐hole on the halogen atom. Despite their importance in drug development, halogen bonds are often overlooked in the analysis and validation of ligand‐protein complexes.
Ida de Vries +3 more
wiley +1 more source
Gaoya dianqi, 2010 带电合地刀是五大恶性误操作之一,必须坚决予以防范。介绍了发生在某500 kV变电站HGIS设备的一起带电合地刀操作及其分析处理过程,得出事故发生的原因为HGIS内部隔离开关操动机构某连板螺钉脱落,导致刀闸实际未断开,提出了厂家应采取改进措施、建立完善的五防系统、标注HGIS分合闸位置、严格执行间接验电程序4条防范措施,对于防止类似事件的发生有很好的借鉴作用。
肖承仟, 智勇军
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