机构

• 地理科学与资源研究所 [6]
• 长春光学精密机械与物... [2]
• 青藏高原研究所 [1]
• 武汉物理与数学研究所 [1]
• 重庆绿色智能技术研究... [1]
• 上海光学精密机械研究... [1]
• 更多

采集方式

• OAI收割 [13]

内容类型

• 期刊论文 [6]
• SCI/SSCI论文 [3]
• 会议论文 [3]
• 学位论文 [1]

发表日期

• 2021 [3]
• 2017 [1]
• 2015 [1]
• 2014 [1]
• 2013 [2]
• 2010 [2]
• 更多

学科主题

• 光学 [1]
• 地理学::自然地理学 [1]

筛选

浏览/检索结果: 共13条，第1-10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 Contrasting Uncertainties in Estimating Floods and Low Flow Extremes 期刊论文  OAI收割 WATER RESOURCES MANAGEMENT, 2021, 页码: 21 作者:  Meresa, Hadush;  Zhang, Yongqiang   |  收藏  |  浏览/下载：30/0  |  提交时间：2021/06/10 Uncertainty  Hydrological models  Parameters  Extremes  Frequency   Contrasting Uncertainties in Estimating Floods and Low Flow Extremes 期刊论文  OAI收割 WATER RESOURCES MANAGEMENT, 2021, 页码: 21 作者:  Meresa, Hadush;  Zhang, Yongqiang   |  收藏  |  浏览/下载：19/0  |  提交时间：2021/06/10 Uncertainty  Hydrological models  Parameters  Extremes  Frequency   Pragmatic Implementation With Non-Gaussian Devices of Noise-Limited Weak Value Amplification 期刊论文  OAI收割 IEEE PHOTONICS JOURNAL, 2021, 卷号: 13, 期号: 2, 页码: 11 作者:  Wu, Hao;  Wu, Peng;  Luo, Zheng-Chun;  Xu, Li-Ping;  Xie, Jia-Heng   |  收藏  |  浏览/下载：28/0  |  提交时间：2021/04/06 Phase measurement  Wave functions  Measurement uncertainty  Couplings  Sensitivity  Light sources  Frequency measurement  Weak measurement  phase estimation  precision optimization   Estimation of instantaneous peak flow from maximum mean daily flow by regionalization of catchment model parameters 期刊论文  OAI收割 HYDROLOGICAL PROCESSES, 2017, 卷号: 31, 期号: 3, 页码: 612-626 作者:  Ding, J (Ding, Jie);  Haberlandt, U (Haberlandt, Uwe);  Ding, J   |  收藏  |  浏览/下载：16/0  |  提交时间：2018/07/26 HYDROLOGICAL MODEL  FREQUENCY-ANALYSIS  UNGAUGED CATCHMENTS  WATERSHED MODEL  RIVER-BASIN  RUNOFF  PREDICTIONS  CALIBRATION  RAINFALL  UNCERTAINTY   Progress towards primary frequency standard 期刊论文  OAI收割 ACTA PHYSICA SINICA, 2015, 卷号: 64, 期号: 16, 页码: 9 作者:  Ruan Jun;  Wang Ye-Bing   |  收藏  |  浏览/下载：14/0  |  提交时间：2021/11/29 cesium fountain clock  frequency stability  frequency uncertainty  optical clock   Regional frequency analysis of extreme precipitation and its spatio-temporal characteristics in the Huai River Basin, China SCI/SSCI论文  OAI收割 2014 作者:  Xia J. 收藏  |  浏览/下载：43/0  |  提交时间：2014/12/24 Extreme rainfall  Regional frequency analysis  L-moments  Monte Carlo  simulation  The Huai River Basin  l-moment  hydrological model  rainfall extremes  uncertainty  parameter  trends  statistics  climate  pattern   Optical frequency standard based on a single Ca-40(+) 期刊论文  OAI收割 CHINESE SCIENCE BULLETIN, 2013, 卷号: 58, 期号: 8, 页码: 853-863 作者:  Gao KeLin 收藏  |  浏览/下载：19/0  |  提交时间：2015/06/23 optical frequency standard  single calcium ion  systematic uncertainty  absolute frequency measurement   Assessing the effect of climate change on reference evapotranspiration in China SCI/SSCI论文  OAI收割 2013 Zhang D.; Liu X. M.; Hong H. Y. 收藏  |  浏览/下载：28/0  |  提交时间：2014/12/24 Reference evapotranspiration  Climate change  Trend  GCMs  pan evaporation  river-basin  uncertainty  trend  frequency  paradox  iran   Embedded system of time uniform based on DSP (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者:  Li N.;  Liu C.-X.;  Liu C.-X.;  Chen J.;  Guo L.-H. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 We introduced a design method of DSP-based System of time uniform  which combine the GPS and the Compass to calibrate the time. The system can use UTC (Coordinated Universal Time) of the GPS or the Compass for time base  to generate absolute time and different frequency of synchronous signals. We used DSP (Digital Signal Processor) to calculate the satellite information which includes the UTC time. After getting the UCT time information  put it into the CPLD (Complex Programmable Logic Device) for correction of time delay and serialization to output. Meanwhile  we divided 1PPS (one-pulse-per-second) signal of the GPS and the Compass into 20Hz  50Hz  and 800Hz synchronous signal. And we analyzed the precision of time and frequency. To conclude  the uncertainty of system absolute time is less than 100ns  the uncertainty of system synchronous signals is less than 20ns. This system is easy and flexible for use  stable and reliable in performance. 2010 IEEE.   Study on dynamic imaging on TDI CCD optical remote sensor of push-broom technology (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China 作者:  Liu L.;  Ren J.-Y.;  Liu L.;  Gao M.-H. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 A set special detecting system is proposed based on TDICCD push-broom technology applying in dynamic imaging detecting experiment of space optics remote sensor. In the system  In the course of detecting  push-broom movement of the satellite is simulated through using double supporting U structure precision rotary platform with remote sensor by angular speed 0.555/s  regard Nyquist frequency target as detecting aim  within the range of 5 and control precision on steady speed achieves 0.3%  in order to solve matching uncertainty between the CCD pixel and the vertical target strip image when the remote sensor does push-broom  make matching simplify  enhance the measurement result the accuracy. So the tolerance a/n arithmetic progression gap target strip is joined in each group of rectangular vertical group target strip. The remote sensor obtains in vertical  the level and 45 the direction 0 fields of view  0.86 the field of view Nyquist frequency target strip image after detected  a group target strip which can precision matching to TDICCD pixel at least can be obtained through analysis and dealing with 0.86 field of view's target strip image. The experiment not only verifies the detecting system's feasibility but simultaneously verifies whether to have the high quality dynamic imaging quality when TDICCD push-broom technology is adopted on the remote sensor developed. 2010 Copyright SPIE - The International Society for Optical Engineering.