Results 301 to 310 of about 2,754,138 (369)

The use of shape memory alloy NiTi particles in SnPbAg matrix: interfacial chemical analysis and mechanical characterisation

open access: closedMaterials Science and Engineering: A, 1999
Abstract Uncoated and copper electroless coated fine NiTi superelastic particles have been incorporated into a liquid SnPbAg matrix. The wettability of the Cu coating by the molten alloy was determined with a wetting balance. The composite interfaces have been investigated by Auger electron spectroscopy (AES). Uncoated NiTi reacted with the matrix to
Jean‐François Silvain   +3 more
openalex   +3 more sources

Direct Analysis of Volatile Methylsiloxanes in Gaseous Matrixes Using Atmospheric Pressure Chemical Ionization-Tandem Mass Spectrometry

open access: closedAnalytical Chemistry, 2009
Atmospheric pressure chemical ionization-tandem mass spectrometry (APCI-MS/MS) was applied for the first time to the direct analysis of octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5) in gaseous matrixes without extraction or prior chromatographic separation.
Koffi Badjagbo   +4 more
openalex   +4 more sources

Substituent-induced chemical shifts in 3- and 4-substituted styrenes: factor analysis of the styrene data matrix

Canadian Journal of Chemistry, 1983
The techniques of factor analysis are used to investigate a data matrix constructed from magnetic resonance parameters for seventy-five 4-substituted styrenes, α-methylstyrenes, and α-tert-butylstyrenes and 3-substituted styrenes and α-methylstyrenes (with fifteen common substituents for each series).
Gordon K. Hamer   +8 more
openaire   +3 more sources

Generation of an Industry-specific Physico-chemical Allocation Matrix. Application in the Dairy Industry and Implications for Systems Analysis (9 pp)

The International Journal of Life Cycle Assessment, 2005
Allocation is required when quantifying environmental impacts of individual products from multi-product manufacturing plants. The International Organization for Standardization (ISO) recommends in ISO 14041 that allocation should reflect underlying physical relationships between inputs and outputs, or in the absence of such knowledge, allocation should
Andrew Feitz   +4 more
openaire   +3 more sources

Advances in Chemical Analysis of Oil Spills Since the Deepwater Horizon Disaster

Critical reviews in analytical chemistry, 2022
Analytical techniques for chemical analysis of oil, oil photochemical and biological transformation products, and dispersants and their biodegradation products benefited significantly from research following the 2010 Deepwater Horizon (DWH) disaster ...
S. Wise   +7 more
semanticscholar   +1 more source

Molecular electrostatic potential analysis: A powerful tool to interpret and predict chemical reactivity

WIREs Computational Molecular Science, 2022
The molecular electrostatic potential (MESP) V(r) data derived from a reliable quantum chemical method has been widely used for the interpretation and prediction of various aspects of chemical reactivity.
C. Suresh   +2 more
semanticscholar   +1 more source

The C-matrix: Augmentation and reduction in the analysis of chemical composition and structure

Chemical Engineering Science, 2014
Abstract We propose a unified linear-algebraic approach that allows determining the three key matrices of chemical kinetics: molecular, stoichiometric and Horiuti matrix, all within a single procedure. This procedure is based on calculating a so called C-matrix, which is obtained from each matrix by augmenting it with a unit matrix and then reducing ...
D. Constales, G.S. Yablonsky, G.B. Marin
openaire   +2 more sources

Atom Probe Tomography for 3D Structural and Chemical Analysis of Individual Proteins.

Small, 2019
Determination of the 3D structure of proteins and other biomolecules is a major goal in structural biology, to provide insights to their biological function.
G. Sundell   +3 more
semanticscholar   +1 more source

Digital Protocol for Chemical Analysis at Ultralow Concentrations by Surface-Enhanced Raman Scattering.

Analytical Chemistry, 2018
Single molecule surface-enhanced Raman spectroscopy (SM-SERS) has the potential to revolutionize quantitative analysis at ultralow concentrations (less than 1 nM).
C. D. D. de Albuquerque   +3 more
semanticscholar   +1 more source

Homogeneity Test on Bio-Matrix Reference Material for Chemical Analysis of Environmental Pollutants

open access: closedJournal of Environmental Science International, 2018
Jangho Lee   +4 more
openalex   +3 more sources

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