نتایج جستجو برای: plsr

تعداد نتایج: 656  

2013
Noraini Ibrahim Antoni Wibowo

Floods are common phenomenon in the state of Kuala Krai, specifically in Kelantan-Malaysia. Every year, floods affecting biodiversity on this region and also causing property loss of this residential area. The residents in Kelantan always suffered from floods since the water overflows to the areas adjoining to the rivers, lakes or dams. Months, average monthly rainfall, temperature, relative hu...

2017
Adnan Adnan Dieter von Hörsten Elke Pawelzik Daniel Mörlein

Moisture content (MC) is one of the most important quality parameters of green coffee beans. Therefore, its fast and reliable measurement is necessary. This study evaluated the feasibility of near infrared (NIR) spectroscopy and chemometrics for rapid and non-destructive prediction of MC in intact green coffee beans of both Coffeaarabica (Arabica) and Coffeacanephora (Robusta) species. Diffuse ...

2016
J. Oinas L. Rieppo M. A. J. Finnilä M. Valkealahti P. Lehenkari S. Saarakkala

The changes in chemical composition of human articular cartilage (AC) caused by osteoarthritis (OA) were investigated using Fourier transform infrared microspectroscopy (FTIR-MS). We demonstrate the sensitivity of FTIR-MS for monitoring compositional changes that occur with OA progression. Twenty-eight AC samples from tibial plateaus were imaged with FTIR-MS. Hyperspectral images of all samples...

Journal: :Applied spectroscopy 2013
Martin Georg Ljungqvist Stina Frosch Michael Engelbrecht Nielsen Bjarne Kjær Ersbøll

The aim of this study was to investigate the possibility of predicting the type and concentration level of astaxanthin coating of aquaculture feed pellets using multispectral image analysis. We used both natural and synthetic astaxanthin, and we used several different concentration levels of synthetic astaxanthin in combination with four different recipes of feed pellets. We used a VideometerLa...

2016
Masami Fujiwara Can Zhou Chelsea Acres Fernando Martinez-Andrade

This study investigated the contribution of shrimp stocks in supporting the production of valuable predator species. Fishery-independent data on white shrimp, brown shrimp, and selected fish species (spotted seatrout, red drum, and southern flounder) were collected from 1986 to 2014 by the Texas Parks and Wildlife Department, and converted to catch-per-unit effort (CPUE). Here, the associations...

Journal: :Open Geosciences 2021

Abstract Salinization is one of the most widespread environmental threats in arid and semi-arid regions that occur either naturally or artificially within soil. When exceeding thresholds, salinity becomes a severe danger, damaging agricultural production, water soil quality, biodiversity, infrastructures. This study used spectral indices, including vegetation Sentinel-2 MSI original bands, DEM,...

2017
Xiaochun Zheng Yankun Peng Wenxiu Wang

A nondestructive method was developed for assessing total viable count (TVC) in pork during refrigerated storage by using hyperspectral imaging technique in this study. The hyperspectral images in the visible/near-infrared (VIS/NIR) region of 400–1100 nm were acquired for fifty pork samples, and their VIS/NIR diffuse reflectance spectra were extracted from the images. The reference values of TV...

Journal: :Remote Sensing 2015
Junjie Wang Tiejun Wang Andrew K. Skidmore Tiezhu Shi Guofeng Wu

The characterization of plant nutrients is important to understand the process of plant growth in natural ecosystems. This study attempted to evaluate the performances of univariate linear regression with various vegetation indices (VIs) and multivariate regression methods in estimating grass nutrients (i.e., nitrogen (N) and phosphorus (P)) with canopy hyperspectral reflectance. Synthetically ...

2017
Byeong-Ju Lee Hye-Youn Kim Sa Rang Lim Linfang Huang Hyung-Kyoon Choi

Panax ginseng C.A. Meyer is a herb used for medicinal purposes, and its discrimination according to cultivation age has been an important and practical issue. This study employed Fourier-transform infrared (FT-IR) spectroscopy with multivariate statistical analysis to obtain a prediction model for discriminating cultivation ages (5 and 6 years) and three different parts (rhizome, tap root, and ...

Journal: :Analytica chimica acta 2010
Kunwar P Singh Nikita Basant Amrita Malik Gunja Jain

The paper describes linear and nonlinear modeling of the wastewater data for the performance evaluation of an up-flow anaerobic sludge blanket (UASB) reactor based wastewater treatment plant (WWTP). Partial least squares regression (PLSR), multivariate polynomial regression (MPR) and artificial neural networks (ANNs) modeling methods were applied to predict the levels of biochemical oxygen dema...

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