Results 81 to 90 of about 523 (173)
This dissertation uses the tools of historical Geographic Information Systems (hGIS) to locate and describe mid-nineteenth-century plantation landscapes in Talbot County, Maryland.
Skolnik, Benjamin Adam
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对隔离开关操作引起的VFTO进行仿真是实现合理的绝缘配合及建设坚强特高压电网的重要课题。针对1 000 kV南阳开关站的HGIS布置,对隔离开关操作引起的VFTO进行了计算分析,计算结果表明,隔离开关中电阻对VFTO具有显著的抑制作用。南阳开关站隔离开关带有500Ω抑制电阻,在最苛刻条件下关合GIS中的VFTO幅值最大为1 266.6 kV,远低于其额定雷电冲击耐受水平2 400 kV;关合一次抑制电阻吸收的能量远低于其额定热容量,因此南阳开关站的隔离开关可以可靠操作。
魏长宇 +6 more
doaj
Out of the Classroom and Into History: Mobile Historical GIS and Community-Engaged Teaching
The authors discuss the use of historical geographic information systems (HGIS) in the teaching of local history. They mention the use of HGIS in the teaching of local history, the opportunity to engage with the community while participating in an active
Trepal, Daniel +6 more
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EVOLUÇÃO DOS LIMITES DISTRITAIS DA CIDADE DO RIO DE JANEIRO, UM RECORTE DO SÉCULO XX
A cidade do Rio de Janeiro, desde sua fundação, passou e passa por profundas mudanças em sua organização espacial. Diante deste fato, o presente trabalho desenvolverá a evolução administrativa dos distritos da cidade do Rio de Janeiro através de um ...
Kairo da Silva Santos +2 more
doaj
Maada'oonidiwag gete-dibaajimowen ("sharing old stories"): reflections on a place-based reparatory research partnership in Nbisiing Anishinaabeg Territory. [PDF]
Hemsworth K +4 more
europepmc +1 more source
Mapping the landscapes of the Stalinist mass repressions. [PDF]
Pallot J, Gavrilova S.
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Insulation condition monitoring of hybrid switchgear
Powerlink Queensland has been a pioneer utility in the application of hybrid gas insulated switchgear (HGIS). The first complete HGIS substation was commissioned in 1999. Since then, more than 200 modules of HGIS have been installed in Powerlink's 110 kV
Blundell, M. +4 more
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为了掌握超高压变电站设备接地线入地电流的实际情况,为下一步做入地电流对地网金属材料的腐蚀研究提供数据依据,笔者选取了东北地区5个超高压变电站,从理论上分析了组合电器和敞开式设备接地线入地电流产生的原因,利用霍尔效应原理对变电站内设备接地引线上的电流情况进行了测试研究。研究表明,带金属外壳设备(如HGIS、GIS、罐式断路器等)接地线上的电流比瓷柱敞开式设备的要大得多,且为工频电流;电流的大小与多种因素有关,如土壤特性、负荷电流大小、变电站布置方式、接地线连接情况、外部干扰等;550 kV ...
李爽 +4 more
doaj
Historical GIS (HGIS) is an interdisciplinary field that integrates the tools and methods of geographic information Science (GIS) into historical research. HGIS projects and studies emphasize the role of spatial context and relationships in understanding
Weiwei Zhang, John R. Logan
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The parcel-geometric cadastres, consisting of textual and cartographic documents, began to spread in Italy starting from the Eighteenth century. These, especially when combined with censuses, allow giving spatial connotation to phenomena that, in fact ...
ZERBI, Andrea
core

