Results 51 to 60 of about 1,007,559 (192)

Physical–Chemical Exfoliation of n-Alkylamine Derivatives of Layered Perovskite-like Oxide H2K0.5Bi2.5Ti4O13 into Nanosheets

open access: yesNanomaterials, 2021
In the present work, we report the results on exfoliation and coating formation of inorganic–organic hybrids based on the layered perovskite-like bismuth titanate H2K0.5Bi2.5Ti4O13·H2O that could be prepared by a simple ion exchange reaction from a ...
Iana A. Minich   +6 more
doaj   +1 more source

Generalized Haldane Equation and Fluctuation Theorem in the Steady State Cycle Kinetics of Single Enzymes

open access: yes, 2006
Enyzme kinetics are cyclic. We study a Markov renewal process model of single-enzyme turnover in nonequilibrium steady-state (NESS) with sustained concentrations for substrates and products. We show that the forward and backward cycle times have idential
D.-Q. Jiang   +11 more
core   +1 more source

On The Theory of Time dilation in Chemical Kinetics

open access: yes, 2017
The rates of chemical reactions are not absolute but their magnitude depends upon the relative speeds of the moving observers. This has been proved by unifying theories of chemical kinetics, which are transition state theory, collision theory, RRKM and ...
Baig, Mirza Wasif
core   +1 more source

On the multistationarity of chemical reaction networks

open access: yes, 2019
We present a new conjecture about a necessary condition that a (bio)chemical network has to satisfy for it to exhibit multistationarity. According to a Theorem of Feliu and Wiuf [27, 12], the conjecture is known for strictly monotonic kinetics.
Kaufman, Marcelle, Soulé, Christophe
core   +1 more source

Parallel versus off-pathway Michaelis-Menten mechanism for single-enzyme kinetics of a fluctuating enzyme

open access: yes, 2015
Recent fluorescence spectroscopy measurements of the turnover time distribution of single-enzyme turnover kinetics of $\beta$-galactosidase provide evidence of Michaelis-Menten kinetics at low substrate concentration.
Dua, Arti   +2 more
core   +2 more sources

Influence of surface diffusion on catalytic reactivity of spatially inhomogeneous surfaces mean field modeling

open access: yes, 2007
Kinetics of model catalytic processes proceeding on inhomogeneous surfaces is studied. We employ an extended mean-field model that takes into account surface inhomogeneities.
Barnes   +23 more
core   +1 more source

Ammonia/Ethane Blends Combustion and Oxidation: Experimental and Numerical Study

open access: yesApplied Sciences
Ammonia is considered as a promising hydrogen carrier and a carbon-free fuel. Methods for improving ammonia combustion characteristics often involve its co-firing with more reactive fuels (natural gas, biofuels, etc.).
Ksenia N. Osipova   +4 more
doaj   +1 more source

Fuel-Rich Premixed n-Heptane/Toluene Flame: a Molecular Beam Mass Spectrometry and Chemical Kinetic Study

open access: yesEurasian Chemico-Technological Journal, 2014
The mole fraction profiles of major flame species and intermediates including PAH precursors are measured in an atmospheric premixed burner-stabilized fuel-rich (φ = 1.75) n-heptane/toluene/O2/Ar flame (n-heptane/toluene ratio is 7:3 by liquid volume ...
D. A. Knyazkov   +5 more
doaj   +1 more source

Synthesis and Characterization of Some New Thermal Stable Polymers - Polymerization of N-[4-N´ -(Benzylamino-carbonyl)phenyl]maleimide

open access: yesE-Journal of Chemistry, 2007
This article describes the synthesis and characterization of homopolymer (H-BCPM) of N-[4-N'-(benzylamino-carbonyl) phenyl] maleimide (N-BACPMI) and copolymer (C-BCPM) of N-BACPMI with n-butyl acrylate (BA).
B. L. Hiran   +4 more
doaj   +1 more source

Prediction of hydrodynamics and chemistry of confined turbulent methane-air flames with attention to formation of oxides of nitrogen [PDF]

open access: yes
A formulation of the governing partial differential equations for fluid flow and reacting chemical species in a tubular combustor is presented. A numerical procedure for the solution of the governing differential equations is described, and models for ...
Elghobashi, S.   +2 more
core   +1 more source

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