Results 291 to 300 of about 2,909,703 (371)
Some of the next articles are maybe not open access.

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

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

Chemical state analysis of ZnO/Ag film interface utilizing the matrix effect

Applied Surface Science, 2003
Abstract The degree of oxidization of Ag in the interface of ZnO/Ag has been investigated by utilizing the matrix effect. We monitored various secondary ions (Ag+, CsAg+, Ag−, AgO−) under Cs+ bombardment during the depth profile analysis. It was found that Ag+, Ag−, AgO− secondary ions exhibited a characteristic enhancement of secondary ion yield due
Y Yamamoto   +4 more
openaire   +1 more source

E.s.c.a. (electron spectroscopy for chemical analysis) Analysis) study of monomodal metal phases in a faujasite X matrix

Zeolites, 1982
A series of faujasite supported catalysts with monomodal dispersed phases of nickel, palladium, and platinum, exhibiting narrow particle size distributions, are chracterized by X.p.s. (X-ray photoelectron spectroscopy).
Schulz-Ekloff, G.   +2 more
openaire   +2 more sources

Structural and dynamics analysis of matrix metalloproteinases MMP-2 complexed with chemically modified tetracyclines (CMTs)

Journal of Biomolecular Structure and Dynamics, 2013
Matrix metalloproteinases (MMPs) play a critical role in physiological processes and pathological conditions such tumor invasion and metastasis. In recent years, a number of MMP inhibitors have been proposed, including the chemically modified tetracyclines (CMTs), which have been evaluated in preclinical cancer models showing promising results.
B L, Marcial   +3 more
openaire   +2 more sources

Analysis of Initial Reactions of MALDI Based on Chemical Properties of Matrixes and Excitation Condition

The Journal of Physical Chemistry B, 2012
This investigation concerns the initial chemical reactions that affect the ionization of matrixes in matrix-assisted laser desorption/ionization (MALDI). The study focuses on the relaxations of photon energy that occur on a comparable time scale to that of ionization, in which the available laser energy is shared and the ionization condition is changed.
Yin-Hung, Lai   +6 more
openaire   +2 more sources

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   +1 more source

Vibrational Analysis of 1,3,3-Trinitroazetidine Using Matrix Isolation Infrared Spectroscopy and Quantum Chemical Calculations

The Journal of Physical Chemistry A, 1997
Author Institution: Chemistry Division, U.S.Naval Research Laboratory; DEPARTMENT OF CHEMISTRY, UNIVERSITY OF NEW ...
Craig A. Thompson   +4 more
openaire   +1 more source

A methodology for equation-based analysis of large chemical processes using the functional matrix

Korean Journal of Chemical Engineering, 1987
The equation-based approach to process analysis is necessary for efficient optimization of large and complex processes, and involves the problem of solving a large number of equations. To complement this approach, an improved equation-solving system using the functional matrix suggested by Mattione, Meir and Book was developed, and its capacity for the
Soo Hyoung Choi, En Sup Yoon
openaire   +1 more source

Home - About - Disclaimer - Privacy