Results 81 to 90 of about 523 (173)

“THE REAL DISTANCE WAS GREAT ENOUGH”: REMAPPING A MULTIVALENT PLANTATION LANDSCAPE USING HISTORICAL GEOGRAPHIC INFORMATION SYSTEMS (HGIS)

open access: yes, 2019
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
core   +1 more source

南阳站1100kV HGIS VFTO仿真

open access: yesGaoya dianqi, 2013
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

open access: yes, 2019
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
core  

EVOLUÇÃO DOS LIMITES DISTRITAIS DA CIDADE DO RIO DE JANEIRO, UM RECORTE DO SÉCULO XX

open access: yesRevista Brasileira de Cartografia, 2019
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  

Mapping the landscapes of the Stalinist mass repressions. [PDF]

open access: yesOpen Res Eur, 2022
Pallot J, Gavrilova S.
europepmc   +1 more source

Insulation condition monitoring of hybrid switchgear

open access: yes, 2008
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
core  

超高压变电站接地引线电流特性测试研究

open access: yesGaoya dianqi, 2017
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

open access: yes, 2017
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
core   +1 more source

Gli HGIS catastali strumenti di rappresentazione aumentata del paesaggio urbano. Il caso di Parma fra XVIII e XX secolo

open access: yes, 2016
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  

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