Results 21 to 30 of about 27,594,235 (204)

Impact of Chemical Treatment on Surface Modification of Agave Americana Fibres for Composite Application – A Futuristic Approach

Journal of Natural Fibers, 2023
As a futuristic approach an attempt has been made in this study to improve the compatibility between reinforcement and polymer matrix in composites by various chemical treatments.
S. Thamarai Selvi, R. Sunitha, L. Ammayappan, C. Prakash   +3 more
doaj   +1 more source

Categorical Dimensions of Human Odor Descriptor Space Revealed by Non-Negative Matrix Factorization [PDF]

, 2013
In contrast to most other sensory modalities, the basic perceptual dimensions of olfaction remain unclear. Here, we use non-negative matrix factorization (NMF) – a dimensionality reduction technique – to uncover structure in a panel of odor profiles ...
Castro, Jason B., Jason B. Castro, Castro, Jason B, Chennubhotla, Chakra S., Ramanathan, Arvind, Schaefer, Andreas, Chennubhotla Chakra S., Arvind Ramanathan (198127), Jason B. Castro (460485), Jason B Castro, Ramanathan Arvind, Arvind Ramanathan, Castro Jason B., Chakra S. Chennubhotla, Chennubhotla, Chakra S, Chakra S Chennubhotla, Chakra S. Chennubhotla (232086)   +16 more
core   +2 more sources

matrix-toolbox/CHM_scripts: Sinkhorn Algorithm

, 2023
Several CHM matrices (M-scripts) obtained by the Sinkhorn Algorithm are ...
matrix-toolbox
core   +1 more source

Hybrid membrane using polyethersulfone-modification of multiwalled carbon nanotubes with silane agent to enhance high performance oxygen separation

International Journal of Science and Engineering, 2014
Mixed matrix membrane comprising carbon nanotubes embedded in polymer matrix have become one of the emerging technologies. This study was investigated in order to study the effect of silane agent modification towards carbon nanotubes (CNT) surface at ...
Tutuk Djoko Kusworo, Ahmad Fauzi Ismail, Azeman Mustafa   +2 more
doaj   +1 more source

PURIFICATION OF INDONESIAN NATURAL GRAPHITE AS CANDIDATE FOR NUCLEAR FUEL MATRIX BY ACID LEACHING METHOD: CHEMICAL CHARACTERIZATION

Urania, 2020
PURIFICATION OF INDONESIAN NATURAL GRAPHITE AS CANDIDATE FOR NUCLEAR FUEL MATRIX BY ACID LEACHING METHOD: CHEMICAL CHARACTERIZATION. Graphite matrix in Pebble Bed Reactor (PBR) – High Temperature Gas Cooled Reactor (HTGR) has an important role as heat ...
Deni Mustika, Torowati Torowati, Arbi Dimyati, Sudirman Sudirman, Adel Fisli, I Made Joni, Ratih Langenati   +6 more
doaj   +1 more source

Characterizing the Urban Mine—Challenges of Simplified Chemical Analysis of Anthropogenic Mineral Residues

Resources, 2019
Anthropogenic mineral residues are characterized by their material complexity and heterogeneity, which pose challenges to the chemical analysis of multiple elements.
Paul Martin Mählitz, Amund N. Løvik, Renato Figi, Claudia Schreiner, Claudia Kuntz, Nathalie Korf, Matthias Rösslein, Patrick Wäger, Vera Susanne Rotter   +8 more
doaj   +1 more source

Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging

npj Materials Degradation, 2021
Three-dimensional (3D) time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging is a promising tool in the analysis of surface modifications of alloy matrix and intermetallic particles induced by localized corrosion due to its good spatial ...
Meicheng Li, Antoine Seyeux, Frédéric Wiame, Philippe Marcus, Jolanta Światowska   +4 more
doaj   +1 more source

Composite bond strength improvement with thermal vibration: an experimental non-randomised study

Кубанский научный медицинский вестник, 2021
Background. Secondary caries formation is a relevant issue due to poor long-term quality of composite fillings, with inherent subsequent chipping and cracking of the material.
A. A. Gushchin, A. A. Adamchik, V. Ya. Zobenko, V. N. Samhaev   +3 more
doaj   +1 more source

A Columnwise Update Algorithm for Sparse Stochastic Matrix Factorization

, 2022
Nonnegative matrix factorization arises widely in machine learning and data analysis. In this paper, for a given factorization of rank r, we consider the sparse stochastic matrix factorization (SSMF) of decomposing a prescribed m-by-n stochastic matrix V
Ching, W, Bai, Z, Xiao, G
core   +1 more source

Data Processing Thresholds for Abundance and Sparsity and Missed Biological Insights in an Untargeted Chemical Analysis of Blood Specimens for Exposomics

Frontiers in Public Health, 2021
Background: An untargeted chemical analysis of bio-fluids provides semi-quantitative data for thousands of chemicals for expanding our understanding about relationships among metabolic pathways, diseases, phenotypes and exposures.
Dinesh Kumar Barupal, Sadjad Fakouri Baygi, Robert O. Wright, Manish Arora   +3 more
doaj   +1 more source