机构

• 地理科学与资源研究所 [5]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [6]

内容类型

• SCI/SSCI论文 [5]
• 会议论文 [1]

发表日期

• 2016 [2]
• 2015 [2]
• 2014 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共6条，第1-6条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Wavelet-Based Hydrological Time Series Forecasting SCI/SSCI论文  OAI收割 2016 作者:  Sang Y. F.;  Singh, V. P.;  Sun, F. B.;  Chen, Y. N.;  Liu, Y.   |  收藏  |  浏览/下载：34/0  |  提交时间：2017/11/09 Hydrological forecasting  Artificial intelligence modeling  Wavelet  analysis  Temporal scale  Hydrological time series analysis  Statistical  significance  neural-network models  practical guide  streamflow  trends  rivers   Wavelet-Based Hydrological Time Series Forecasting SCI/SSCI论文  OAI收割 2016 作者:  Sang Y. F.;  Singh, V. P.;  Sun, F. B.;  Chen, Y. N.;  Liu, Y. 收藏  |  浏览/下载：33/0  |  提交时间：2016/12/16 Hydrological forecasting  Artificial intelligence modeling  Wavelet  analysis  Temporal scale  Hydrological time series analysis  Statistical  significance  neural-network models  practical guide  streamflow  trends  rivers   Gradation of complexity and predictability of hydrological processes SCI/SSCI论文  OAI收割 2015 作者:  Sang Y. F.;  Singh, V. P.;  Wen, J.;  Liu, C. M. 收藏  |  浏览/下载：34/0  |  提交时间：2015/12/09 hydrological processes  complexity  predictability  climate change  modeling  multiscale entropy analysis  time-series  information-theory  practical  guide  wavelet  variability  basin  china   Wavelet Neural Modeling for Hydrologic Time Series Forecasting with Uncertainty Evaluation SCI/SSCI论文  OAI收割 2015 作者:  Sang Y. F.;  Wang, Z. G.;  Liu, C. M. 收藏  |  浏览/下载：35/0  |  提交时间：2015/12/09 Hydrologic time series analysis  Probabilistic forecasting  Uncertainty  evaluation  Wavelet neural model  Monte-Carlo simulation  monthly rainfall  practical guide  prediction  networks  precipitation  decomposition  sensitivity  calibration  level   Energy-Based Wavelet De-Noising of Hydrologic Time Series SCI/SSCI论文  OAI收割 2014 Sang Y. F.; Liu C. M.; Wang Z. G.; Wen J.; Shang L. Y. 收藏  |  浏览/下载：23/0  |  提交时间：2014/12/24 rainfall-runoff  practical guide  decomposition  reduction  multiresolution  transform   Application of precision harmonic gear drive in focusing mechanism of space camera (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, April 26, 2010 - April 29, 2010, Dalian, China 作者:  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25 A kind of precision harmonic gear drive in the focusing mechanism of space camera is studied  which adopt external meshing complex wave transmission mode. Wave generator is combined with an elliptic cam and a flexible bearing around it. Flexspline is a structure of single wave with the same teeth. The output shaft is supported by a single cross-roller bearing. Ball screws connected the output shaft translate the rotational motion to the linear motion  and drive the focusing mirror repeated moving along the linear guide. The output rigid wheel is connected with absolute encoder to detect displacement of focusing movement. It has the characteristics of big transmission ratio  high precision  compact structure  high efficiency and smooth running etc. According to the practical application of this harmonic gear drive in the space camera  the location relationship between the displacement of focusing structure and the focal plane movement is derived  and the system error is analyzed  its accuracy is tested with the open-loop control method. Experimental results show that transmission ratio of the instrument is 1:70  repeated positional accuracy is 2m  which meet the requirements for use. 2010 SPIE.