Results 31 to 40 of about 5,519 (170)

Study of PLSR-BP model for stability assessment of loess slope based on particle swarm optimization

Scientific Reports, 2021
The assessment of loess slope stability is a highly complex nonlinear problem. There are many factors that influence the stability of loess slopes. Some of them have the characteristic of uncertainty. Meanwhile, the relationship between different factors
Bin Gong
doaj   +1 more source

Visible and near-infrared spectroscopy and deep learning application for the qualitative and quantitative investigation of nitrogen status in cotton leaves

Frontiers in Plant Science, 2022
Leaf nitrogen concentration (LNC) is a critical indicator of crop nutrient status. In this study, the feasibility of using visible and near-infrared spectroscopy combined with deep learning to estimate LNC in cotton leaves was explored.
Qinlin Xiao, Qinlin Xiao, Na Wu, Wentan Tang, Wentan Tang, Chu Zhang, Lei Feng, Lei Feng, Lei Zhou, Jianxun Shen, Ze Zhang, Pan Gao, Yong He, Yong He   +13 more
doaj   +1 more source

Partial least squares regression (PLSR) associated with spectral response to predict soil attributes in transitional lithologies

Archives of Agronomy and Soil Science, 2017
ABSTRACTNew techniques and improvements are required to quantify soil’s chemical and physical properties on production environment, reducing environmental impacts and minimizing soil analysis time. The aim of this study is to evaluate the possibility to estimate the content of silt, sand, clay, total iron and organic matter in soils formed by different
Marcos Rafael Nanni, Everson Cezar, Carlos Antonio da Silva Junior, Guilherme Fernando Capristo Silva, Anderson Antonio da Silva Gualberto   +4 more
openaire   +1 more source

Quantitative analysis and resolution of pharmaceuticals in the environment using multivariate curve resolution-alternating least squares (MCR-ALS)

Acta Pharmaceutica, 2019
The study presents the application of multivariate curve resolution alternating least squares (MCR-ALS) with a correlation constraint for simultaneous resolution and quantification of ketoprofen, naproxen, paracetamol and caffeine as target analytes and ...
Mostafa Ahmed, Shaaban Heba
doaj   +1 more source

Non-destructive prediction of yak meat freshness indicator by hyperspectral techniques in the oxidation process

Food Chemistry: X, 2023
This study examined the potential of hyperspectral techniques for the rapid detection of characteristic indicators of yak meat freshness during the oxidation of yak meat.
Kai Dong, Yufang Guan, Qia Wang, Yonghui Huang, Fengping An, Qibing Zeng, Zhang Luo, Qun Huang   +7 more
doaj   +1 more source

Similar locomotor patterns across Quarter Horse disciplines inform lameness assessment

Equine Veterinary Journal, EarlyView.
Abstract Background Lineage‐based selection is central to the Quarter Horse industry and is often justified by the assumption that morphology determines locomotor function. However, objective evidence linking static conformation to discipline‐specific locomotor behaviour under standardised conditions remains limited.
Renata Farinelli de Siqueira, Lavínia Andressa Brito, Isabela Marques de Figueiredo, Ana Clara Rocha dos Santos, Larissa Santos dos Anjos   +4 more
wiley   +1 more source

Foliar Spectra and Traits of Bog Plants across Nitrogen Deposition Gradients

Remote Sensing, 2020
Bogs, as nutrient-poor ecosystems, are particularly sensitive to atmospheric nitrogen (N) deposition. Nitrogen deposition alters bog plant community composition and can limit their ability to sequester carbon (C). Spectroscopy is a promising approach for
Alizée Girard, Anna K. Schweiger, Alexis Carteron, Margaret Kalacska, Etienne Laliberté   +4 more
doaj   +1 more source

pH value monitoring during human albumin purification with near infrared spectroscopy and chemometrics [PDF]

Journal of Innovative Optical Health Sciences, 2018
Human albumin (HA) is a very important blood product which requires strict quality control strategy. Acid precipitation is a key step which has a great effect on the quality of final product.
Qiaofeng Sun, Zhongyu Sun, Fei Wang, Lian Li, Ronghua Liu, Lei Nie, Jiayue Wang, Mingyu Wang, Hengchang Zang   +8 more
doaj   +1 more source

ATR-IR coupled to partial least squares regression (PLSR) for monitoring an encapsulated active molecule in complex semi-solid formulations

The Analyst, 2018
Attenuated Total Reflectance-Infrared (ATR-IR) spectroscopy holds great promise for industrial applications as a quality control tool for complex galenic formulations.
Miloudi, Lynda, Bonnier, Franck, Barreau, Kevin, Bertrand, Dominique, Perse, Xavier, Yvergnaux, Florent, Byrne, Hugh, Chourpa, Igor, Munnier, Emilie   +8 more
openaire   +4 more sources

Common‐Mode Rejection Shifted‐Excitation Raman Difference Spectroscopy (CMR‐SERDS) Preserves Broad Structure Predictive of Soil Organic Carbon

Journal of Raman Spectroscopy, EarlyView.
Common‐mode rejection (CMR) is introduced as a physics‐motivated preprocessing method for shifted excitation Raman difference spectroscopy (SERDS) that removes the shared background of paired measurements while preserving the noncommon excitation‐dependent component. Applied to more than 900 North American soil samples, CMR improves soil organic carbon
Mahsa Zarei, Miayan Larose, Natalia V. Solomatova, Sadegh Shokatian, Edward Grant   +4 more
wiley   +1 more source