中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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A fast progressive spectrum denoising combined with partial least squares algorithm and its application in online Fourier transform infrared quantitative analysis 期刊论文  OAI收割
ANALYTICA CHIMICA ACTA, 2019, 卷号: 1074, 页码: 62-68
作者:  
Zhang, Genwei;  Peng, Silong;  Cao, Shuya;  Zhao, Jiang;  Xie, Qiong
  |  收藏  |  浏览/下载:364/0  |  提交时间:2019/07/11
CHARACTERIZATION OF THE RELEASE OF UREA FROM COATED FERTILIZER BY FOURIER TRANSFORM INFRARED SPECTROSCOPY WITH ATTENUATED TOTAL REFLECTANCE 期刊论文  iSwitch采集
ANALYTICAL LETTERS, 2015, 卷号: 48, 期号: 15, 页码: 2380-2390
作者:  
Shen, Yazhen;  Du, Changwen;  Zhou, Jianmin;  Ma, Fei
收藏  |  浏览/下载:42/0  |  提交时间:2019/10/10
红外光谱定量分析算法研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2011
作者:  
彭江涛
收藏  |  浏览/下载:197/0  |  提交时间:2015/09/02
Baseline correction combined partial least squares algorithm and its application in on-line Fourier transform infrared quantitative analysis 期刊论文  OAI收割
ANALYTICA CHIMICA ACTA, 2011, 卷号: 690, 期号: 2, 页码: 162-168
作者:  
Peng, Jiangtao;  Peng, Silong;  Xie, Qiong;  Wei, Jiping
收藏  |  浏览/下载:26/0  |  提交时间:2015/08/12
In Situ Evaluation of Net Nitrification Rate in Terra Rossa Soil Using a Fourier Transform Infrared Attenuated Total Reflection N-15 Tracing Technique 期刊论文  iSwitch采集
APPLIED SPECTROSCOPY, 2009, 卷号: 63, 期号: 10, 页码: 1168-1173
作者:  
Du Changwen;  Linker, Raphael;  Shaviv, Avi;  Zhou Jianmin
收藏  |  浏览/下载:29/0  |  提交时间:2019/10/10
parallel preconditioners for large scale partial difference equation systems 期刊论文  OAI收割
Elsevier, 2009, 卷号: 226, 期号: 1, 页码: 125-135
Sun Jia-Chang; Cao Jianwen; Yang Chao
  |  收藏  |  浏览/下载:20/0  |  提交时间:2010/08/24
Prediction of soil available phosphorus using Fourier transform infrared-photoacoustic spectroscopy 期刊论文  iSwitch采集
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY, 2007, 卷号: 35, 期号: 1, 页码: 119-122
作者:  
Du Chang-Wen;  Zhou Jian-Min
收藏  |  浏览/下载:33/0  |  提交时间:2019/10/10
The study on the near infrared spectrum technology of sauce component analysis (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Li S.;  Wang C.;  Chen X.;  Chen X.;  Chen X.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
The author  Shangyu Li  engages in supervising and inspecting the quality of products. In soy sauce manufacturing  quality control of intermediate and final products by many components such as total nitrogen  saltless soluble solids  nitrogen of amino acids and total acid is demanded. Wet chemistry analytical methods need much labor and time for these analyses. In order to compensate for this problem  we used near infrared spectroscopy technology to measure the chemical-composition of soy sauce. In the course of the work  a certain amount of soy sauce was collected and was analyzed by wet chemistry analytical methods. The soy sauce was scanned by two kinds of the spectrometer  the Fourier Transform near infrared spectrometer (FT-NIR spectrometer) and the filter near infrared spectroscopy analyzer. The near infrared spectroscopy of soy sauce was calibrated with the components of wet chemistry methods by partial least squares regression and stepwise multiple linear regression. The contents of saltless soluble solids  total nitrogen  total acid and nitrogen of amino acids were predicted by cross validation. The results are compared with the wet chemistry analytical methods. The correlation coefficient and root-mean-square error of prediction (RMSEP) in the better prediction run were found to be 0.961 and 0.206 for total nitrogen  0.913 and 1.215 for saltless soluble solids  0.855 and 0.199 nitrogen of amino acids  0.966 and 0.231 for total acid  respectively. The results presented here demonstrate that the NIR spectroscopy technology is promising for fast and reliable determination of major components of soy sauce.  
The regularity of the wave equation with partial Dirichlet control and colocated observation 期刊论文  OAI收割
SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 2005, 卷号: 44, 期号: 5, 页码: 1598-1613
作者:  
Guo, BZ;  Zhang, X
  |  收藏  |  浏览/下载:16/0  |  提交时间:2018/07/30