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Infrared Spectroscopy-Based Chemometric Analysis for Lard Differentiation in Meat Samples

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Computers, Materials & Continua 2023年第5期75卷 2859-2871页

作者： Muhammad Aadil Siddiqui M.H.Md Khir Zaka Ullah Muath Al Hasan Abdul Saboor Saeed Ahmed Magsi Department of Electrical and Electronic Engineering Universiti Teknologi PetronasSeri Iskandar32610Malaysia College of Engineering Al Ain UniversityAl Ain64141United Arab Emirates High Performance Cloud Computing Centre(HPC) Universiti Teknologi PetronasSeri Iskandar32610Malaysia

One of the most pressing concerns for the consumer market is the detection of adulteration in meat products due to their *** rapid and accurate identification mechanism for lard adulteration in meat products is highly necessary,for developing a mechanism trusted by consumers and that can be used to make a definitive *** Transform Infrared Spectroscopy(FTIR)is used in this work to identify lard adulteration in cow,lamb,and chicken samples.A simplified extraction method was implied to obtain the lipids from pure and adulterated *** samples were obtained by mixing lard with chicken,lamb,and beef with different concentrations(10%–50%v/v).Principal component analysis(PCA)and partial least square(pls)were used to develop a calibration model at 800–3500 cm^(−1).Three-dimension PCA was successfully used by dividing the spectrum in three regions to classify lard meat adulteration in chicken,lamb,and beef *** corresponding FTIR peaks for the lard have been observed at 1159.6,1743.4,2853.1,and 2922.5 cm−1,which differentiate chicken,lamb,and beef *** wavenumbers offer the highest determination coefficient R2 value of 0.846 and lowest root mean square error of calibration(RMSEC)and root mean square error prediction(RMSEP)with an accuracy of 84.6%.Even the tiniest fat adulteration up to 10%can be reliably discovered using this methodology.

关键词： Fourier transform infrared spectroscopy lard halal PCA pls RMSEC RMSEP

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基于路径建模的大理州居民幸福感研究

数学的实践与认识 2018年第17期48卷 276-284页

作者：叶青李振鹏黑韶敏大理大学统计系

基于路径建模方法及大理白族自治州12个县市问卷调查数据,建立大理州居民幸福感结构方程模型,对大理州居民幸福感进行测评分析.研究对幸福感测评体系建设有一定指导意义,进一步探讨了提高居民幸福感的政策建议.

关键词：路径建模 pls 大理居民幸福感

LapRLSR for NIR spectral modeling and its application to online monitoring of the column separation of Salvianolate

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Chinese Chemical Letters 2007年第7期18卷 852-856页

作者： Hui Hua Yang Feng Qin Qiong Lin Liang Yong Wang Yi Ming Wang Guo An Lu Analysis Center Tsinghua University Beijing 100084 China College of Computer Science and Control Guilin University of Electronic Technology Guilin 541004 China Modern Engineering Center for Traditional Chinese Medicine School of Pharmacy East China University of Science and Technology Shanghai 200237 China

A novel near infrared （NIR） modeling method-Laplacian regularized least squares regression （LapRLSR） was presented,which can take the advantage of many unlabeled spectra to promote the prediction performance of the model even if there are only few calibration samples. Using LapRLSR modeling, NIR spectral analysis was applied to the online monitoring of the concentration of salvia acid B in the column separation of Salvianolate. The results demonstrated that LapRLSR outperformed partial least squares （pls） significantly, and NIR online analysis was applicable.

关键词： Laplacian regularized least squares regression (LapRLSR) pls NIR Salvianolate

A compact positron annihilation lifetime spectrometer

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Chinese Physics C 2011年第1期35卷 100-103页

作者：李道武刘军辉章志明王宝义张天保魏龙 Key-Laboratory of Nuclear Analysis Techniques Institute of High Energy PhysicsChinese Academy of Sciences Graduate University of Chinese Academy of Sciences

Using LYSO scintillator coupled on HAMAMATSU R9800 （a fast photomultiplier） to form the small size γ-ray detectors, a compact lifetime spectrometer has been built for the positron annihilation experiments. The system time resolution FWHM=193 ps and the coincidence counting rate -8 cps/*** were achieved. A lifetime value of 219±1 ps of positron annihilation in well annealed Si was tested, which is in agreement with the typical values published in the previous lectures.

关键词： compact pls LYSO positron annihilation

High precision slope deformation monitoring model based on the GPS/Pseudolites technology in open-pit mine

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Mining Science and Technology 2010年第1期20卷 126-131,137页

作者： WANG Jianpeng, GAO Jingxiang, LIU Chao, WANG Jian School of Environment and Spatial Informatics, China University of Mining & Technology, Xuzhou 221008, China [a] School of Environment Spatial Informatics China University of Mining & Technology Xuzhou 221008 China

As the number and geometric intensity of visual satellites are susceptible to large slopes in open-pit mines, we propose integration of GPS/Pseudolites (pls) positioning technology which can increase the number of visible satellites, strengthen the geometric intensity of satellites and provide a precision solution for slope deformation monitoring. However, the un-modeled systematic errors are still the main limiting factors for high precision baseline solution. In order to eliminate the un-modeled systematic error, the Empirical Mode Decomposition (EMD) theory is employed. The multi-scale decomposition and reconstruction architecture are defined here on the basis of the EMD theory and the systematic error mitigation model is demonstrated as well. A standard of the scale selection for the systematic error elimination is given in terms of the mean of the accumulated standardized modes. Thereafter, the scheme of the GPS/pls baseline solution based on the EMD is suggested. The simulation and experiment results show that the precision factors (DOP) are reduced greatly when pls is located suitably. The proposed scheme dramatically improves the reliability of ambiguity resolution and the precision of baseline vector after systematic error being eliminated, and provides an effective model for high precision slope deformation monitoring in open-pit mine.

关键词： open-pit mine slope deformation pls EMD

Nonlinear Spline Kernel-based Partial Least Squares Regression Method and Its Application

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Journal of Donghua University(English Edition) 2008年第4期25卷 468-474页

作者：贾金明文香军 School of Economics & Management Southeast University Nanning Power Supply Bureau Guangxi Power Grid Corp.

Inspired by the traditional Wold's nonlinear pls algorithm comprises of NIPALS approach and a spline inner function model,a novel nonlinear partial least squares algorithm based on spline kernel(named SK-pls)is proposed for nonlinear modeling in the presence of *** on the inner-product kernel spanned by the spline basis functions with infinite number of nodes,this method firstly maps the input data into a high-dimensional feature space,and then calculates a linear pls model with reformed NIPALS procedure in the feature space and gives a unified framework of traditional pls "kernel" algorithms in *** linear pls in the feature space corresponds to a nonlinear pls in the original input(primal)*** good approximating property of spline kernel function enhances the generalization ability of the novel model,and two numerical experiments are given to illustrate the feasibility of the proposed method.

关键词： pls spline kernel nonlinear modeling

Three-dimensional holographic vector of atomic interaction field for quantitative structure-retention relationship of purine bases

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Chinese Science Bulletin 2006年第13期51卷 1557-1562页

作者： TONG Jianbo ZHOU Peng ZHANG Shengwan ZHOU Yuan MEI Hu ZENG Hui LI Meiping LI Zhiliang College of Chemistry and Chemical Engineering Shanxi University Taiyuan 030006 China College of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 China Key Laboratory of Biomedical Engineering of Ministry of Education and Chongqing Municipality Chongqing 400044 China

A newly developed descriptor, three- dimensional holographic vector of atomic interaction field (3D-HoVAIF), was used to describe the chemical structures of purine bases. After variable screening by stepwise multiple regression (SMR) technique, a partial least square (pls) regression model was built with 3D-HoVAIF. The model was satisfactory com- paring to reference since correlation coefficients of molecular modeling ( Rc 2um), cross- validation ( Qc 2um) and standard deviation of estimation (SD) were 0.966, 0.860 and 0.112, respectively, showing that the model had favorable estimation and prediction capa- bilities. It was illustrated that information related to retention data of purine bases could preferably be expressed by 3D-HoVAIF with definite physico- chemical meanings and easy structural interpretation for purine bases. It was illustrated that 3D-HoVAIF was to preferably express retention data of purine bases and had definite physicochemical significance. So 3D-HoVAIF was a useful structural expression technique for quantitative structure activity (or prop- erty or retention) relationships (QSAR/QSPR/QSRR) study, such as structural characterization and chro- matographic retention prediction.

关键词： 3D-HoVAIF 嘌呤 SMR pls QSAR/QSPR/QSRR

Data-driven modeling method with reverse process

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International Journal of Modeling, Simulation, and Scientific Computing 2022年第2期13卷 16-29页

作者： Guodong Yi Lifan Yi Zaizhao Zhang Chuihui Li State Key Laboratory of Fluid Power&Mechatronic SystemsZhejiang University Hangzhou 310027P.R.China Xiangyang Boya Precision Industrial Equipment Co. Ltd.China

The factors that affect the performance of the equipment are numerous and complicated,which makes it difficult to establish a performance calculation *** paper puts forward a data-driven modeling method with reverse process for this *** on the partial least squares(pls)algorithm and the gray relational analysis(GRA)method,the analysis method of the performance related factors,the extraction method of characteristic variables,and the performance modeling method are *** related factors of the energy consumption of an industrial steam turbine are analyzed,and an energy consumption calculation model is established,and the effectiveness of the above-mentioned modeling methods is verified with sample data,which provides a basis for the energy-saving optimization of the steam turbine.

关键词： Data-driven reverse process pls GRA

Severe and delayed immune-mediated hemolysis post-liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2017年第6期16卷 665-668页

作者： Quan Zhuang Hong Liu Ke Cheng Ying Niu Xing-Guo She Ying-Zi Ming Transplantation Center of the Third Xiangya Hospital Central South University Changsha 410013 China

To the Editor:Hemolysis,which is caused by a variety of immune and non-immune mechanisms,is a well-recognized complication of solid organ transplantation.;Hemolysis post-liver transplantation can be induced by drug,in... 详细信息

关键词： RBC Severe and delayed immune-mediated hemolysis post-liver transplantation pls DCD EBV