中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共7条,第1-7条 帮助

条数/页: 排序方式:
Review, framework, and future perspectives of Geographic Knowledge Graph (GeoKG) quality assessment 期刊论文  OAI收割
GEO-SPATIAL INFORMATION SCIENCE, 2024, 卷号: N/A
作者:  
Wang, Shu;  Qiu, Peiyuan;  Zhu, Yunqiang;  Yang, Jie;  Peng, Peng
  |  收藏  |  浏览/下载:15/0  |  提交时间:2024/10/21
Three-reference-point based group ELECTRE III method for urban flood resilience evaluation 期刊论文  OAI收割
EXPERT SYSTEMS WITH APPLICATIONS, 2022, 卷号: 210, 页码: 19
作者:  
Tu, Yan;  Shi, Hongwei;  Chen, Kai;  Liang, Yingying;  Zhou, Xiaoyang
  |  收藏  |  浏览/下载:34/0  |  提交时间:2023/02/07
Comprehensive Evaluation of Electric Power Prediction Models Based on D-S Evidence Theory Combined with Multiple Accuracy Indicators 期刊论文  OAI收割
JOURNAL OF MODERN POWER SYSTEMS AND CLEAN ENERGY, 2022, 卷号: 10, 期号: 3, 页码: 597-605
作者:  
Cui, Qiong;  Zhu, Jizhong;  Shu, Jie;  Huang, Lei;  Ma, Zetao
  |  收藏  |  浏览/下载:24/0  |  提交时间:2023/11/21
Evaluation of aquatic ecological health of sluice-controlled rivers in Huai River Basin (China) using evaluation index system 期刊论文  OAI收割
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2022, 页码: 16
作者:  
Chen, Hao;  Li, Wen;  Zuo, Qiting;  Zhang, Yongyong;  Liang, Shikui
  |  收藏  |  浏览/下载:21/0  |  提交时间:2022/09/21
The Research of real time auto-recognition of the moire fringe (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wang M.-J.; Wu Z.-G.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
Measuring the movement of raster by the method of moire fringe has the advantage of high sensitivity  high resolution and non-contacted measurement. The characteristic of moire fringe is that the image is white alternate with black  the angle of the stripes is uniform  the width of the stripes is uniform  the terminators of the stripes aren't clear. A fast method that can figure out the width and angle of the moire fringe precisely is put forward in this paper. It calculates the angle the stripes firstly. According to the principle of the minimum mean squared error (MMSE)  the closer a series of data is  the smaller the value of the MMSE will be. The method is described as follows: It takes the image's center as the origin  180 beelines pass through the origin with the same angle interval. it calculates the value of the minimum mean squared error of the 180 beelines and find out the least one among those  then the angle of the moire fringe comes out primarily. In order to improving the calculating precision of moire fringe  60 equal angles are divided in the neighborhood of the angle  then a precise angle of moire fringe is calculated according to the principle of the MMSE. After getting out the angle of the moire fringe  we begin to calculate the width of moire fringe. A line vertical with the moire fringe is drawn  and we can get the width of the moire fringe by the vertical line. In order to get over the influence of the noise  an effective area with the shape of diamond is selected in the image. The data of area is accumulated and projected according to the direction of moire fringe  and a sine curve come out. The width of moire fringe can be obtained by getting the position of the first wave crest  the position of the last wave crest and the number of wave crest. Experiments prove that the precision of the method put forward in this paper is enhanced in comparison with the traditional frequency method  the precision of width calculation achieves to 99.6% according to the evaluation indicators of width detection error. The computing speed is boosted largely compared with traditional method  and it can achieve with 15 ms  that satisfying the demand of real time. 2011 SPIE.  
Impacts of agricultural land management on soil quality after 24 years: a case study in Zhangjiagang County, China 期刊论文  iSwitch采集
NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH, 2011, 卷号: 54, 期号: 4, 页码: 261-273
作者:  
Qi, Y. B.;  Huang, B.;  Darilek, J. L.
收藏  |  浏览/下载:43/0  |  提交时间:2019/10/10
Measurement indicators and an evaluation approach for assessing urban sustainable development: A case study for China's Jining City 期刊论文  OAI收割
LANDSCAPE AND URBAN PLANNING, 2009, 卷号: 90, 期号: 1, 页码: 134-142
作者:  
Li, Feng;  Liu, Xusheng;  Hu, Dan;  Wang, Rusong;  Yang, Wenrui
收藏  |  浏览/下载:30/0  |  提交时间:2015/08/07