Results 21 to 30 of about 41,990 (343)

Tridiagonal Matrices and Boundary Conditions [PDF]

SIAM Journal on Matrix Analysis and Applications, 2016
13 pages, 4 ...
Veerman, J. J. P., Hammond, David K.
openaire   +3 more sources

Purification of Curcuminoids from Natural Deep Eutectic Solvents (NADES) Matrices Using Chromatography-Based Separation Methods

Indonesian Journal of Chemistry, 2021
Curcuminoids can be successfully extracted from Curcuma zedoaria using natural deep eutectic solvents (NADES) as extraction solvents. However, a mixture of extracted curcuminoids, NADES, and impurities from C. zedoaria was obtained as a slurry at the end
Orchidea Rachmaniah, Muhammad Rifqy Muhsin, Angga Widya Putra, Muhammad Rachimoellah   +3 more
doaj   +1 more source

An FPGA-based analysis of trade-offs in the presence of ill-conditioning and different precision levels in computations.

PLoS ONE, 2020
Several areas, such as physical and health sciences, require the use of matrices as fundamental tools for solving various problems. Matrices are used in real-life contexts, such as control, automation, and optimization, wherein results are expected to ...
Ignacio Algredo-Badillo, José Julio Conde-Mones, Carlos Arturo Hernández-Gracidas, María Monserrat Morín-Castillo, José Jacobo Oliveros-Oliveros, Claudia Feregrino-Uribe   +5 more
doaj   +1 more source

Three-Dimensional Acoustic Analysis of a Rectangular Duct with Gradient Cross-Sections in High-Speed Trains: A Theoretical Derivation

Applied Sciences, 2022
Rectangular ducts used in the air-conditioning system of a high-speed train should be carefully designed to achieve optimal acoustic and flow performance.
Yanhong Sun, Yi Qiu, Lianyun Liu, Xu Zheng   +3 more
doaj   +1 more source

Classification of structural MRI images in Alzheimer's disease from the perspective of ill-posed problems. [PDF]

PLoS ONE, 2012
BACKGROUND:Machine learning neuroimaging researchers have often relied on regularization techniques when classifying MRI images. Although these were originally introduced to deal with "ill-posed" problems it is rare to find studies that evaluate the ill ...
Ramon Casanova, Fang-Chi Hsu, Mark A Espeland, Alzheimer's Disease Neuroimaging Initiative   +3 more
doaj   +1 more source

A Research on Cross-Regional Debris Flow Susceptibility Mapping Based on Transfer Learning

Remote Sensing, 2022
Debris flow susceptibility mapping (DFSM), which has proven to be one of the most effective tools for risk management, faces a variety of problems. To realize the rational use of debris flow sample resources and improve the modeling efficiency, a unified
Ruiyuan Gao, Changming Wang, Songling Han, Hailiang Liu, Xiaoyang Liu, Di Wu   +5 more
doaj   +1 more source

An efficient Dai-Kou-type method with image de-blurring application [PDF]

Iranian Journal of Numerical Analysis and Optimization
Well-conditioning of matrices has been shown to improve the numerical performance of algorithms by way of ensuring their numerical stability. In this paper, a modified Dai–Kou-type conjugate gradient method is developed for constrained nonlinear monotone
K. Ahmed, M.Y. Waziri, S. Murtala, A.S. Halilu, H. Abdullahi, Y.B. Musa   +5 more
doaj   +1 more source

Conditional S-matrices

Linear Algebra and its Applications, 2004
Conditional \(S\)-matrices and conditonal \(S^*\)-matrices (denoted as \(CS\)-matrices and \(CS^*\)-matrices, respectively), were first analyzed by \textit{R. A. Brualdi}, \textit{K. L. Chavey} and \textit{B. L. Shader} [Conditional sign-solvability, Math. Comput. Modelling 17, No. 1, 141--148 (1993; Zbl 0768.90051)] and \textit{R. A.
Xu, Guang-Hui, Shao, Jia-Yu
openaire   +2 more sources

Improved conditioning of isogeometric analysis matrices for trimmed geometries

Computer Methods in Applied Mechanics and Engineering, 2018
A stable basis for isogeometric analysis of trimmed models is obtained by combining extended B-splines with truncated hierarchical B-splines. While extended B-splines guarantee that the condition number of system matrices is independent of the location ...
B. Marussig, R. Hiemstra, T. Hughes
semanticscholar   +1 more source

Microbiological assessment of heat treatment of broiler mash at laboratory scale to evaluate Salmonella reduction during feed conditioning

Journal of Applied Poultry Research, 2021
Summary: Salmonella is the pathogen mostly associated with feed and dry food safety incidents and is a cause of many foodborne outbreaks. In most feed mills conditioning and retentioning systems are installed to improve the pelleting process but also as ...
S. Steghöfer, R. Limburn, E. Margas
doaj   +1 more source