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浏览/检索结果: 共9条，第1-9条 帮助

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Fitting limit lines (envelope curves) to spreads of geoenvironmental data 期刊论文  OAI收割
PROGRESS IN PHYSICAL GEOGRAPHY-EARTH AND ENVIRONMENT, 2021, 页码: 19
作者:  Carling, Paul A.;  Jonathan, Philip;  Su, Teng
  |  收藏  |  浏览/下载：26/0  |  提交时间：2022/09/21
Quantification of Water Sources in a Coastal Gold Mine through an End-Member Mixing Analysis Combining Multivariate Statistical Methods 期刊论文  OAI收割
WATER, 2020, 卷号: 12, 期号: 2, 页码: 27
作者:  Liu, Guowei;  Ma, Fengshan;  Liu, Gang;  Guo, Jie;  Duan, Xueliang
  |  收藏  |  浏览/下载：23/0  |  提交时间：2020/05/18
Statistical inference for M-t/G/Infinity queueing systems under incomplete observations 期刊论文  OAI收割
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, 2019, 卷号: 279, 期号: 3, 页码: 882-901
作者:  Li, Dongmin;  Hu, Qingpei;  Wang, Lujia;  Yu, Dan
  |  收藏  |  浏览/下载：80/0  |  提交时间：2020/01/10
Evaluation of spatial upscaling methods based on remote sensing data with multiple spatial resolutions (EI CONFERENCE) 会议论文  OAI收割
Satellite Data Compression, Communications, and Processing VIII, August 12, 2012 - August 13, 2012, San Diego, CA, United states
Ren R.; Gu L.; Cao J.; Chen H.; Sun J.
收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25
In most applications of remote sensing data  special spatial information is required from a finer to a coarser spatial resolution with appropriate upscaling methods. The purpose of this paper is to compare and evaluate current spatial upscaling methods using MODIS remote sensing data with multiple spatial resolutions. In the research  Northeast China was selected as the study area. MODIS data with spatial resolutions of 250 m (2 bands) and 500 m (7 bands) were used as the test data. Through using the selected upscaling methods  the Band 1 and Band 2 data of MODIS were scaled up from 250 m to 500 m spatial resolution. On the basis of land cover characteristics of Northeast China  the MODIS data located in the study area was classified into the five land cover types  including water  grasslands  forests  farmlands and bare lands using maximum likelihood method. The land cover classification results were further compared with MODIS Land Cover Type product. Finally  Structural Similarity (SSIM) was selected to evaluate the effects of these upscaling methods. The research can provide more useful information for spatial scaling transformation in remote sensing data applications. 2012 SPIE.  
Chirp estimation of PZT for integrating-bucket method (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:  Zhang J.;  Liu W.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25
The nonlinear response of the PZT for the integrating bucket method is studied by our proposed method: discrete chirp Fourier transform (DCFT) and maximum likelihood estimation (MLE) techniques for the integrating bucket method. Based on the signal processing theory  the intensity obtained from CCD is processed by the DCFT and thus nonlinear response and chirp coefficient of the PZT can be coarsely estimated. This is followed by the MLE method  in which an iterative optimization process is complemented for accurately estimating the nonlinear response and chirp coefficient of the PZT. One key advantage of the proposed method is that not only the nonlinear response and chirp coefficient of the PZT can be acquired  but also initial phase acquired. Our method is tested by simulating conditions under which a certain magnitude of nonlinearity is assumed. Nonlinear response attained by the DCFT is compared to that attained by the MLE  and a difference between the actual nonlinear response of the PZT and our accurate estimation by the proposed method is revealed. Several factors that will have influence on the nonlinear response of the PZT are discussed. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Improvement of urban land use and land cover classification approach in arid areas 会议论文  OAI收割
Proceedings of SPIE - The International Society for Optical Engineering, Image and Signal Processing for Remote Sensing XVI, Toulouse, France, 2010
Qian; Jing1; 2; Zhou; Qiming1; Chen; Xi2
收藏  |  浏览/下载：34/0  |  提交时间：2011/08/23
Application of the forward linear prediction on high-resolution NMR spectra in inhomogeneous fields 期刊论文  OAI收割
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2008, 卷号: 71, 期号: 3, 页码: 1027
Feng, H; Cai, SH; Chen, Z; Lin, MJ; Feng, J
收藏  |  浏览/下载：22/0  |  提交时间：2013/09/17
Phylogenetic analysis of 48 gene families revealing relationships between Hagfishes, Lampreys, and Gnathostomata 期刊论文  OAI收割
JOURNAL OF GENETICS AND GENOMICS, 2008, 卷号: 35, 期号: 5, 页码: 285-290
作者:  Yu Shuiyan;  Zhang Weiwei;  Li Ling;  Huang Huifang;  Ma Fei
  |  收藏  |  浏览/下载：25/0  |  提交时间：2021/02/26
Correlated data fitting and error analysis in gamma(2S) scan experiment 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2003, 卷号: 27, 期号: 6, 页码: 474-478
作者:  Mo XH(莫晓虎);  Zhu YS(朱永生);  Mo, XH;  Zhu, YS
收藏  |  浏览/下载：14/0  |  提交时间：2016/06/28