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浏览/检索结果: 共4条，第1-4条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序提交时间升序提交时间降序题名升序题名降序作者升序作者降序 Dynamic cost analysis for disposal of low and intermediate level nuclear waste in China 期刊论文 ANNALS OF NUCLEAR ENERGY, 2021, 卷号: 154 作者:  Xia, Fan;  Zhao, Jiyun;  Cai, Junjie;  Liu, Jian 收藏  |  浏览/下载：85/0  |  提交时间：2021/05/17 Activity-based Life Cycle Costing  Dynamic cost estimation  Low and intermediate level waste  Waste management  Nuclear power plant   Dynamic reserve demand estimation model and cost-effectivity oriented reserve allocation strategy for multi-area system integrated with wind power 期刊论文 IET GENERATION TRANSMISSION & DISTRIBUTION, 2018, 卷号: 12, 期号: 7 作者:  Jiang, Haiyan;  Xu, Jian;  Sun, Yuanzhang;  Liao, Siyang;  Ke, Deping 收藏  |  浏览/下载：60/0  |  提交时间：2019/12/05 wind power plants  dynamic reserve demand estimation model  cost-effectivity oriented reserve allocation strategy  multi-area system  large-scale wind power  DRDE  N-1 contingency  load forecast error  two-dimensional binning technique  versatile probability distribution model  prediction level  6-bus test system  IEEE 118-bus test system   Optimization on motion estimation algorithm based on H. 264 (EI CONFERENCE) 会议论文 2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China Wen X.; Li G. 收藏  |  浏览/下载：55/0  |  提交时间：2013/03/25 Motion estimation is a very important part of video compression. As a result of using precision of motion vector in H.264 encoder  the computational cost increases rapidly  and motion estimation is the most time-consuming stage. In this paper  based on the UMHexagonS algorithm  an optimized algorithm is proposed based on the dynamic search window selection  big hexagon and small hexagon search mode respectively  which saves motion estimation time effectively with a little quality loss. Experiments with some typical video sequences show that compared to the original UMHexagonS algorithm  this new algorithm can save about 17.851 % motion estimation time and reduce the complexity of original scheme as well as enhance the real time performance of encoder and almost has no changes in the reconstructed picture quality and bitrates. 2010 IEEE.   空间数据库的混合查询优化策略 其他 2004-01-01 徐丹; 马修军; 谢昆青 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/11 Mixed query optimization  Separation of filter and refinement steps  Cost estimation  Selectivity analyze  Dynamic programming