Results 31 to 40 of about 3,330 (300)

Variational total curvature model for multiplicative noise removal

IET Computer Vision, 2018
The multiplicative noise removal problem has received considerable attention recently. To solve this problem, various variational models have been proposed, which minimise an energy functional composed of the data term and the regularisation term ...
Xinli Xu, Teng Yu, Xinmei Xu, Guojia Hou, Ryan Wen Liu, Huizhu Pan   +5 more
doaj   +1 more source

Nondestructive Detection of Weight Loss Rate, Surface Color, Vitamin C Content, and Firmness in Mini-Chinese Cabbage with Nanopackaging by Fourier Transform-Near Infrared Spectroscopy

Foods, 2021
A nondestructive optical method is described for the quality assessment of mini-Chinese cabbage with nanopackaging during its storage, using Fourier transform-near infrared (FT-NIR) spectroscopy.
Qiang Liu, Shaoxia Chen, Dandan Zhou, Chao Ding, Jiahong Wang, Hongsheng Zhou, Kang Tu, Leiqing Pan, Pengxia Li   +8 more
doaj   +1 more source

Determination of the Geographical Origin of Walnuts (Juglans regia L.) Using Near-Infrared Spectroscopy and Chemometrics

Foods, 2020
The prices of walnuts vary according to their geographical origin and, therefore, offer a financial incentive for adulteration. A reliable analysis method is required to quickly detect possible misdeclarations and thus prevent food fraud.
Maike Arndt, Alissa Drees, Christian Ahlers, Markus Fischer   +3 more
doaj   +1 more source

Minimization of Moiré effect generated by a double-layered metal mesh on top of the R-G-B optical source

Results in Physics, 2019
Fourier transform was utilized to analyze Moiré pattern for a two-layer metal mesh structure nonadjacent to an intensity patterned light source with a micron size separation.
Marzieh Pournoury, Ali Zamiri, Victor Yurlov, Tae Young Kim, Aeri Jung, Kyunghwan Oh   +5 more
doaj   +1 more source

Using Molecular Spectroscopic Techniques (NIR and ATR-FT/MIR) Coupling with Various Chemometrics to Test Possibility to Reveal Chemical and Molecular Response of Cool-Season Adapted Wheat Grain to Ergot Alkaloids

Toxins, 2023
The objectives of this study were to explore the possibility of using near infrared (NIR) and Fourier transform mid-infrared spectroscopy—attenuated total reflectance (ATR-FT/MIR) molecular spectroscopic techniques as non-invasive and rapid methods for ...
Haitao Shi, Peiqiang Yu
doaj   +1 more source

Preliminary exploration and application research on the model of gathering distillate according to the quality based on Fourier transform near infrared spectroscopy [PDF]

Zhongguo niangzao
In order to establish a fast, efficient and accurate technology based on gathering distillate according to the quality, the volatile flavor components in different grades of original liquor (initial distillate, middle distillate, last distillate) were ...
LIAO Li, ZHANG Guiyu, ZOU Yongfang, ZHU Xuemei, PENG Houbo, ZHANG Wei, LI Yan
doaj   +1 more source

The Impact of Preprocessing Methods for a Successful Prostate Cell Lines Discrimination Using Partial Least Squares Regression and Discriminant Analysis Based on Fourier Transform Infrared Imaging

Cells, 2021
Fourier transform infrared spectroscopy (FT-IR) is widely used in the analysis of the chemical composition of biological materials and has the potential to reveal new aspects of the molecular basis of diseases, including different types of cancer.
Danuta Liberda, Ewa Pięta, Katarzyna Pogoda, Natalia Piergies, Maciej Roman, Paulina Koziol, Tomasz P. Wrobel, Czeslawa Paluszkiewicz, Wojciech M. Kwiatek   +8 more
doaj   +1 more source

Determination of Soybean Oil, Protein and Amino Acid Residues in Soybean Seeds by High Resolution Nuclear Magnetic Resonance (NMRS) and Near Infrared (NIRS)

, 2012
A detailed account is presented of our high resolution nuclear magnetic resonance (HR-NMR) and near infrared (NIR) calibration models, methodologies and validation procedures, together with a large number of composition analyses for soybean seeds.
I. Baianu, Tiefeng You, P Lozano, Randall Nelson, Doina Costescu, I. C. Baianu, Randall L. Nelson, Tiefeng You, P R. Lozano, Valentin Prisecaru   +9 more
core   +1 more source

New sampling theorem and multiplicative filtering in the FRFT domain [PDF]

, 2019
Having in consideration a fractional convolution associated with the fractional Fourier transform (FRFT), we propose a novel reconstruction formula for bandlimited signals in the FRFT domain without using the classical Shannon theorem.
Castro, Luís P., Anh, P. K., Tuan, N. M., Thao, P. T.   +3 more
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source