Results 11 to 20 of about 326,648 (267)

Reaction–diffusion with stochastic decay rates [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2017
Microscopic physical and chemical fluctuations in a reaction–diffusion system lead to anomalous chemical kinetics and transport on the mesoscopic scale. Emergent non-Markovian effects lead to power-law reaction times and localization of reacting species.
G. John Lapeyre, Marco Dentz
openaire   +4 more sources

Precision long-term measurements of beta-decay-rate ratios in a controlled environment

open access: yesPhysics Letters B, 2017
We report on measurements of relative beta-decay rates of Na-22, Cl-36, Co-60, Sr-90, Cs-137 monitored for more than one year. The radioactive samples are mounted in an automated sample changer that sequentially positions the five samples in turn, with ...
S.D. Bergeson, J. Peatross, M.J. Ware
doaj   +1 more source

General decay for a nonlinear pseudo-parabolic equation with viscoelastic term

open access: yesDemonstratio Mathematica, 2022
This work is concerned with a multi-dimensional viscoelastic pseudo-parabolic equation with critical Sobolev exponent. First, with some suitable conditions, we prove that the weak solution exists globally.
Vu Ngo Tran   +2 more
doaj   +1 more source

Decay rate of reindeer pellet-groups

open access: yesRangifer, 2008
Counting of animal faecal pellet groups to estimate habitat use and population densities is a well known method in wildlife research. Using pellet-group counts often require knowledge about the decay rate of the faeces.
Anna Skarin
doaj   +1 more source

On Global Well-Posedness and Temporal Decay for 3D Magnetic Induction Equations with Hall Effect

open access: yesMathematics, 2020
The main purpose of this paper is to study the global existence and uniqueness of solutions for three-dimensional incompressible magnetic induction equations with Hall effect provided that ∥u0∥H32+ε+∥b0∥H2 ...
Xiaopeng Zhao
doaj   +1 more source

Effects of methionine treatment on storage quality and antioxidant activity of postharvest jujube fruit

open access: yesJournal of Integrative Agriculture, 2023
Jujube fruits usually suffer from physiological disorders or infectious diseases during storage, leading to quality deterioration, softening, or rotting.
Yao LIU   +4 more
doaj   +1 more source

On the decay rate of sunspots [PDF]

open access: yesGeophysical Research Letters, 2003
We have analyzed the decay of 32 sunspots observed during the years 1988 through 2001 at the San Fernando Observatory (SFO). The data are from digital images obtained in the red (672 nm) with the Cartesian Full Disk Telescope No.1 (CFDT1). We find that the rate of decay is strongly correlated with the total sunspot area and the umbral to total area ...
G. A. Chapman   +3 more
openaire   +1 more source

Determination of Microbial Maintenance in Acetogenesis and Methanogenesis by Experimental and Modeling Techniques

open access: yesFrontiers in Microbiology, 2019
For biogas-producing continuous stirred tank reactors, an increase in dilution rate increases the methane production rate as long as substrate input can be converted fully. However, higher dilution rates necessitate higher specific microbial growth rates,
Fabian Bonk   +7 more
doaj   +1 more source

decay rate [PDF]

open access: yes, 2014
Citation: 'decay rate' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.D01541 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

Influence of Vertical Fastener Stiffness on Rail Sound Power Characteristics: Numerical Study and Field Measurement

open access: yesApplied Sciences, 2020
The aim of this paper is to investigate the influence of vertical fastener stiffness on the sound power characteristics of rail rolling noise. The rail mobility is obtained by using the Timoshenko-beam track model and the spectral element method.
Xi Sheng, Ying Zhang, Xiaozhou Liu
doaj   +1 more source

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