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Electric vehicles connected directly to the distribution network are expected to increase the base electric loads and reduce the stability of a power system. Meanwhile, equipped with bidirectional battery chargers, electric vehicles can work in V2G mode, as spinning reserve, and enhance grid stability. This paper discusses the charger technologies, requirements and proposes transient voltage stability...
Spatial queries such as range query and $k$<alternatives> <inline-graphic xlink:type="simple" xlink:href="chen-ieq1-2330836.gif"/></alternatives>NN query in road networks have received a growing number of attention in real life. Considering the large population of the users and the high overhead of network distance computation, it is extremely important to guarantee...
Evaluation of spatial accessibility are always the research hotspot in space planning, geography and so on. This article makes full use of two GIS-based accessibility measures including the two-step floating catchment area method and the gravity-based method to examining spatial accessibility to town and rural in Dachang County. Based on communicant and socioeconomic data of Dachang County in 2009,...
Based on the PARADISE (Platform for Applying, Researching and Developing Intelligent Search Engine), we construct a literature search engine with a collection of papers in computer network area. Besides retrieval, the system also provides comments and impact-based summaries of a paper. The comments are extracted from the citing papers and the summary is obtained from the paper sentences impacting...
Aiming at the problem that the traditional control has a limited control bandwidth and delays in digital implementation, a novel generalized inverse control of three-phase active power filter is studied in this paper. And the generalized inverse system can be approximated by LS-SVM due to the fast operational speed of LS-SVM. On the other hand, since the traditional algorithm has slow convergence...
Monitoring and assessing land degradation is important to local sustainable development in Guizhou province, Southwest China, where limestone distributed about 61.7 %. Using the 1 km Advanced Very High Resolution Radiometer Normalized Difference Vegetation Index (AVHRR/NDVI) data (1992-1993) and 500 m, Moderate Resolution Imaging Spectroradiometer Normalized Difference Vegetation Index (MODIS/NDVI)...
The objective of this study was to examine the vegetation response to the climatic variation in Guizhou province, Southwest China. The relationship between vegetation and climate change was investigated with Normalized Difference Vegetation Index (NDVI) (1982-1999) images derived from the Advanced Very High Resolution Radiometer (AVHRR), and climate data acquired from 19 meteorological stations in...
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