This work was originally motivated by a classification of tensors proposed by Richard Harshman. In particular, we focus on simple and multiple “bottlenecks”, and on “swamps”. Existing theoretical results are surveyed, some numerical algorithms are described in details, and their numerical complexity is calculated. In particular, the interest in using the ELS enhancement in these algorithms is d...

Molecular Science and Biomedicine L Chemo/Bio-Sensing and Chemometrics, Engineering, College of Life Sciences, A Province, Hunan University, Changsha, Hu u.edu; ruowenwang@u.edu Department of Chemistry, Department of Ph for Research at the Bio/Nano Interface, Hea McKnight Brain Institute, University of Flori Department of Biotechnology and Biomed Tsinghua University, Zhejiang, 314006, Chi † E...

3. Data Analysis 1985 3.1. Fluorescence Data Structure 1985 3.2. Chemometrics 1985 3.3. Multivariate Analysis of Fluorescence Data 1985 3.4. Multiway Analysis of Fluorescence Data 1985 4. Food Studies 1986 4.1. Meat 1987 4.2. Fish 1989 4.3. Dairy Products 1989 4.4. Edible Oils 1990 4.5. Cereals 1990 4.6. Beer 1991 4.7. Fruit and Vegetables 1991 4.8. Sugar 1991 5. Conclusions and Perspectives 19...

The bootstrap is a resampling method for statistical inference. It is commonly used to estimate confidence intervals, but it can also be used to estimate bias and variance of an estimator or calibrate hypothesis tests. A short of papers illustrative of the diversity of recent environmentric applications of the bootstrap includes toxicology [2], fisheries surveys [27], groundwater and air poluti...

Different examples of successive coupling of Near Infrared Spectroscopy and chemometric for solving problems of authentication and quality control of food and drug samples will be presented. In particular, topics as the traceability of PDO products, the determination of nutritional value of cereals and the quantification of enantiopurity of pharmaceutical API will be discussed.

Nontargeted compound analysis and statistical tools were used in combination with the high sensitivity of the Agilent 5977A Series GC/MSD with Extractor EI Source to generate compound profiles that were used to differentiate five brands of whiskey.

background: a new microextraction method named dispersive liquid-liquid microextraction (dllme) for determination of chloroform in pool water and blood of swimmers after swimming is described. methods: this method was performed based on coupling dispersive liquid-liquid microextraction (dllme) with gas chromatog­raphy-mass spectrometry (gc-ms). methanol and trichloroethylenes were used as the d...

direct orthogonal signal correction(dosc) and savitzky-golay filters (sgf) were applied as preprocessing methods on the original and first derivative absorbance data. principle component regression (pcr), partial least squares (pls) and iterative target transformation factor analysis (ittfa), were used in spectrophotometric simultaneous determination of heavy divalent metal ions, lead, zinc,mer...

Bootstrap methods have gained wide acceptance and huge popularity in the field of applied statistics. The bootstrap is able to provide accurate answers in cases where other methods are simply not available, or where the usual approximations are invalid. The number of applications in chemistry, however, has been rather limited. One possible cause for this is the overwhelming number of techniques...

This paper describes potential applications of computer-assisted chemometrics in method development in liquid chromatography. These include modeling of retention (isocratic, gradient, molecular modeling, artificial neural networks), assessment of separation (peak capacity), single and multiple objective optimization approach, advanced optimization algorithms (genetic algorithms, simulated annea...