Results 41 to 50 of about 11,144 (287)

The Effect of Ingredients Mixing Sequence in Rubber Compounding upon Vulcanization Kinetics of Natural Rubber: An Autocatalytic Model Study

open access: yesIndonesian Journal of Chemistry, 2018
This study examined the effect of ingredients mixing sequence to the vulcanization kinetics of natural rubber. The effects of mixing temperature, vulcanization temperature, and the carbon black type upon the kinetics were also studied by using rheography
Abu Hasan   +3 more
doaj   +1 more source

Anion–π catalysis on carbon allotropes

open access: yesBeilstein Journal of Organic Chemistry, 2023
Anion–π catalysis, introduced in 2013, stands for the stabilization of anionic transition states on π-acidic aromatic surfaces. Anion–π catalysis on carbon allotropes is particularly attractive because high polarizability promises access to really strong
M. Ángeles Gutiérrez López   +7 more
doaj   +1 more source

Continual reproduction of self-assembling oligotriazole peptide nanomaterials. [PDF]

open access: yes, 2017
Autocatalytic chemical reactions, whereby a molecule is able to catalyze its own formation from a set of precursors, mimic nature's ability to generate identical copies of relevant biomolecules, and are thought to have been crucial for the origin of life.
Brea, Roberto J, Devaraj, Neal K
core   +2 more sources

Chemical Ecosystem Selection on Mineral Surfaces Reveals Long-Term Dynamics Consistent with the Spontaneous Emergence of Mutual Catalysis

open access: yesLife, 2019
How did chemicals first become organized into systems capable of self-propagation and adaptive evolution? One possibility is that the first evolvers were chemical ecosystems localized on mineral surfaces and composed of sets of molecular species that ...
Lena Vincent   +8 more
doaj   +1 more source

Reaction diffusion processes on random and scale-free networks [PDF]

open access: yes, 2004
We study the discrete Gierer-Meinhardt model of reaction-diffusion on three different types of networks: regular, random and scale-free. The model dynamics lead to the formation of stationary Turing patterns in the steady state in certain parameter ...
De Wit A.   +4 more
core   +2 more sources

Using Patchy Particles to Shed New Light on the Autocatalytic Aggregation of Soft Matter

open access: yesProceedings, 2019
Autocatalysis, i.e., the speeding up of a reaction through the very same molecule which is [...]
Silvia Corezzi   +2 more
doaj   +1 more source

Platinum Group Metals: A Review of Resources, Production and Usage with a Focus on Catalysts

open access: yesResources, 2021
The major applications of PGMs are as catalysts in automotive industry, petroleum refining, environmental (gas remediation), industrial chemical production (e.g., ammonia production, fine chemicals), electronics, and medical fields.
Anthony E. Hughes   +3 more
doaj   +1 more source

Complete homochirality induced by the nonlinear autocatalysis and recycling

open access: yes, 2003
A nonlinear autocatalysis of a chiral substance is shown to achieve homochirality in a closed system, if the back-reaction is included. Asymmetry in the concentration of two enantiomers or the enantiometric excess increases due to the nonlinear ...
Bada J. L.   +12 more
core   +1 more source

The occurrence of prime numbers revisited

open access: yesGECONTEC: Revista Internacional de Gestión del Conocimiento y la Tecnología, 2016
Based on an arithmetical and autocatalytic approach, the authors propose a solution for the occurrence of prime numbers. Exact arithmetical calculations are provided for: the closest prime to any given positive integer (or any number of bigger or smaller
Ernesto Tapia Moore, José Tapia Yañez
doaj   +4 more sources

Instability of Turing patterns in reaction-diffusion-ODE systems

open access: yes, 2016
The aim of this paper is to contribute to the understanding of the pattern formation phenomenon in reaction-diffusion equations coupled with ordinary differential equations.
Karch, Grzegorz   +2 more
core   +1 more source

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