Quantitative analysis of bioactive carbazole alkaloids in Murraya koenigii (L.) from six different climatic zones of India using UPLC‐MS/MS and their principal component analysis

2021 ◽  
Author(s):  
Shiv Nandan ◽  
Sumit K. Singh ◽  
Pratibha Singh ◽  
Vikas Bajpai ◽  
Ashwanee K. Mishra ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Quantitative Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Murraya Koenigii ◽  
Climatic Zones ◽  
Carbazole Alkaloids

Quantitative analysis of interspecific and ontogenetic variation in Osteoglossum species (Teleostei: Osteoglossiformes: Osteoglossidae)

Zootaxa ◽  
2006 ◽  
Vol 1239 (1) ◽  
pp. 49 ◽  
Author(s):  
MARIA E.C. LEAL ◽  
VIVIANNE B. DE SANT-ANNA
Keyword(s):  
Principal Component Analysis ◽  
Quantitative Analysis ◽  
Intraspecific Variation ◽  
Principal Component ◽  
Component Analysis ◽  
Growth Trajectories ◽  
Ontogenetic Variation ◽  
Morphometric Characters ◽  
Interspecific And Intraspecific Variation

Patterns of interspecific and intraspecific variation were investigated on samples of postembryos, juveniles, and adults of the two species of the osteoglossid genus Osteoglossum (O. bicirrhosum and O. ferreirai). Twenty-two morphometric characters were analyzed, utilizing principal component analysis (PCA) that discriminate ontogenetic classes and between species. The results showed differences in both categories. Morphometric characters related to dorsal and anal fin lengths proved to be the most important in taxonomic recognition. The comparison of growth trajectories for these characters showed that growth offset for O. bicirrhosum overlaps with growth onset for O. ferreirai, which may be indicative of a peramorphic morphology in the latter species.

scholarly journals Agro-climatic classification in India

MAUSAM ◽  
2021 ◽  
Vol 44 (1) ◽  
pp. 53-60
Author(s):  
A. CHOWDHURY ◽  
H. P. DAS ◽  
S.S. SINGH
Keyword(s):  
Principal Component Analysis ◽  
Soil Moisture ◽  
Spatial Variability ◽  
Principal Component ◽  
Component Analysis ◽  
Climatic Zones ◽  
Climatic Classification ◽  
Agroclimatic Zones ◽  
Rainy Days

In the present study, principal component analysis has been applied to agroclimatic variables for delineating India into homogeneous agroclimatic zones for kharif crops. The vaTiates chosen were soil moisture, water need of the crops, number of rainy days and radiation. Spatial variability of some of these factors has been discussed. Vector 1 and vector 2 were obtained for each of the three separate sets of the variates and plotted to obtain grid maps. Through a process of successive superimposition of these maps, agro-climatic zones have been obtained.  

Kansei Quantitative Analysis and its Application to Drum Washing Machine Apperence Design

2013 ◽  
Vol 401-403 ◽  
pp. 193-196 ◽  
Author(s):  
Sai He ◽  
Jian Ming Che
Keyword(s):  
Principal Component Analysis ◽  
Statistical Analysis ◽  
Quantitative Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Analysis Method ◽  
Kansei Engineering ◽  
Washing Machine ◽  
Design Elements ◽  
Statistical Analysis Method

Kansei Engineering (KE) refers to the translation of consumers' emotional requirements about a product into perceptual design elements. The Kansei Engineering is applied to the drum washing machine aided by a variety of engineering mean.Semantic differential (SD) is applied to extract the kansei tags.Multivariate statistical analysis method is also used for data mining.The data of design elements is processed by principal component analysis (PCA) and SPSS.

Quantitative Analysis for Nonlinear Fluorescent Spectra Based on Principal Component Analysis

2009 ◽  
Vol 29 (5) ◽  
pp. 1285-1291 ◽  
Author(s):  
陈扬 Chen Yang ◽  
张太宁 Zhang Taining ◽  
郭澎 Guo Peng ◽  
王湘晖 Wang Xianghui ◽  
王倩 Wang Qian ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Quantitative Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Fluorescent Spectra

scholarly journals Quantitative Analysis of Velopharyngeal Movement by Applying Principal Component Analysis to Range Images Produced by a Three-Dimensional Endoscope

2017 ◽  
Vol 5 (2) ◽  
pp. 14
Author(s):  
Asuka Nakano ◽  
Katsuaki Mishima ◽  
Mami Shiraishi ◽  
Hirotsugu Umeda ◽  
Hiroyuki Nakano ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Quantitative Analysis ◽  
Three Dimensional ◽  
Principal Component ◽  
Component Analysis ◽  
Range Images

scholarly journals Multivariate statistical analysis of tropane alkaloids in Anisodus tanguticus (Maxim.) Pascher from different regions to trace geographical origins

2021 ◽  
Author(s):  
Chen Chen ◽  
Jingjing Li ◽  
Feng Xiong ◽  
Bo Wang ◽  
Yuanming Xiao ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Quantitative Analysis ◽  
Discriminant Analysis ◽  
Least Squares ◽  
Partial Least Squares ◽  
Geographical Origin ◽  
Principal Component ◽  
Tropane Alkaloids ◽  
Component Analysis ◽  
Tibet Plateau

Abstract Anisodus tanguticus (Maxim.) Pascher is an important Tibetan folk medicine and the source of tropane alkaloids (TAs) grown in Qinghai-Tibet Plateau. There are marked differences in quality of A. tanguticus from geographic areas. The aim of present research was to establish a method for the quantitative analysis of TAs coupled with chemometrics analysis to trace geographical origins. Qualitative analysis of TAs in A. tanguticus was carried out using ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry and quantitative analysis of TAs in different plant organs from different geographical origin was achieved. Contents of TAs were subjected to the principal component analysis, and orthogonal partial least-squares discriminant analysis. The contents of the three marker compounds (anisodamine, anisodine and atropine) in the roots and acrial parts of A. tanguticus were positive correlated and varied significantly from different geographical origins. Principal component analysis, and orthogonal partial least-squares discriminant analysis results showed excellent discrimination between different geographical origin of A. tanguticus. This study could provide comprehensive evaluation and further utilization of A. tanguticus resources.

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