【摘 要】
：
The optimal selection method of spectral region based on the grey correlation analysis was applied in the analysis of near-infrared(NIR)spectra.In order to comp
【机 构】
：
Guanghua College of Changchun University,State Key Laboratory for Supramolecular Structure and Mater
【基金项目】
：
the Key Projects in the National Science & Technology Pillar Program,China;the Development Program of the Science and Technology of Jilin Province,China;the 11th Five-Year Key Project of Jilin Provinc
论文部分内容阅读
The optimal selection method of spectral region based on the grey correlation analysis was applied in the analysis of near-infrared(NIR)spectra.In order to compute “characteristic” spectral region,160 samples of tobacco were surveyed by NIR.Next,the whole spectral region was randomly divided into six regions,and the values of association coefficients and correlation orders of different regions were computed for total sugar,reducing sugar and nicotine.Moreover,two regions that owned the largest value of association coefficient were regarded as “characteristic” spectral region of a model.Finally,the quantitative analysis models of different components were established via the partial least squares method,and the common selection methods of spectral region were compared.The simulation results indicate that the models to choose the spectral region based on grey correlation analysis are more effective than the common selection methods of spectral region,the optimized time of algorithm is shorter,the prediction precision of the models is higher and generalization ability for quantitative analysis results is stronger.This research can provide the support for the quantitative analysis models of NIR spectra and new idea for commercial analysis software of NIR.So,it has a high application value in the analysis of NIR spectra.
其他文献
主要目的在于采用基于统计方法的新思想,用以改进现行体质健康标准测试的信息收集系统。以一个班级的体质健康测试数据为案例,应用统计的思想和方法提取出了对于学生和老师各
目的 探讨血管迷走性晕厥患者基础状态下的心脏结构及功能变化.方法 直立倾斜试验(HUTT)阳性的VVS患者40例(研究组),男性12例,女性28例,年龄7.5～35岁,平均年龄(13.23±4.23)岁
运用文献资料、走访调查、数理统计和逻辑学方法,对不同时间段的文献统计结果和相关体育文献内容类型统计结果对体育优势研究问题进行了分析.结果表明:体育优势问题的研究尚
The bifurcations of orbit flip homoclinic loop with nonhyperbolic equilibria are investigated.By constructing local coordinate systems near the unperturbed hono
We give a brief discussion of some of the contributions of Peter Lax to Computational Fluid Dynamics.These include the Lax-Friedrichs and Lax-Wendroff numerical
Self-assembly of latex particles is of great importance for fabricating various functional colloidal crystals.In this paper,we review recent research on the sel
A self-intermolecular cyclocondensation reaction of 3,4-dihydropyrimidine-2-thione (DHPM) to give a novel tricyclic structure containing DHPM core in the presen
Background Pneurnocystis jirovecii pneumonia (PCP) is one of the most common and fatal infections in non-AIDS immunocompromised patients,which is difficult to d
Exhaustive mineralization of pentachlorophenolate ion (PCP) in phosphate buffer was carried out using anodic contact glow discharge electrolysis (CGDE), in whic
In this article we state that the compression factor of the Redlich-Kwong Equation Of State (EOS) is smaller than that of van der Waals EOS.The Redlich-Kwong EO