Results 61 to 70 of about 1,304,136 (197)

Extraction of Model Parameters for Reactive Solute Transport [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2019
Rock material is common in the construction of hydraulic structures. In the present study, to the aim is to examine the reactive solute relationships for transport and degradation processes through the rockfill media.
Jafar Chabokpour, Ali Akhoundzadeh
doaj   +1 more source

The Application of PMA (Propidium Monoazide) to Different Target Sequence Lengths of Zebrafish eDNA: A New Approach Aimed Toward Improving Environmental DNA Ecology and Biological Surveillance

open access: yesFrontiers in Ecology and Evolution, 2021
Environmental DNA (eDNA) analysis has enabled more sensitive and efficient biological monitoring than traditional methods. However, since the target species is not directly observed, interpretation of results cannot preclude process Type I errors ...
Takaya Hirohara   +5 more
doaj   +1 more source

Photoluminescence quantum efficiency of dense silicon nanocrystal ensembles in SiO2 [PDF]

open access: yes, 2006
The photoluminescence decay characteristics of silicon nanocrystals in dense ensembles fabricated by ion implantation into silicon dioxide are observed to vary in proportion to the calculated local density of optical states.
Atwater, H. A.   +4 more
core   +1 more source

The decay eta_c^prime -> eta_c pi pi

open access: yes, 2002
It is pointed out that the decay of the recently observed charmonium eta_c^prime resonance, eta_c^prime -> eta_c pi pi is simply related to the well studied decay psi^prime -> J/psi pi pi and can thus be used for absolute normalization of other decay ...
Chakravarty S.   +5 more
core   +2 more sources

Age‐Specific differences in Asian elephant defecation, dung decay, detection and their implication for dung count

open access: yesEcological Solutions and Evidence, 2022
In vertebrate population estimation, converting faecal density into animal density requires information on the faecal production rate, decay rate and faecal density.
Ashokkumar Mohanarangan   +4 more
doaj   +1 more source

Can Cosmic Ray Catalysed Vacuum Decay Dominate Over Tunnelling? [PDF]

open access: yes, 1997
We consider the question of whether cosmic ray catalysed false vacuum decay can be phenomenologically more important than spontaneous decay via quantum tunnelling.
Carena   +24 more
core   +2 more sources

Trends in Resonance Energy Shifts and Decay Rates for Bose Condensates in a Harmonic Trap

open access: yes, 2001
This is a study of quasi-discrete Bogoliubov quasi-particles in a spherically symmetric harmonic trap. We first evaluate analytically the aymptotic energy shifts of the high energy modes and find them to have $1/sqrt(n)$ dependence on the number of ...
Bergeman, Thomas, Das, Kunal
core   +1 more source

decay rate

open access: yes, 2010
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.D01542 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Energy decay of solutions for a wave equation with a constant weak delay and a weak internal feedback

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
In this paper, we consider the wave equation with a weak internal constant delay term: $$ u''(x, t)-\Delta_{x}u(x, t)+ \mu_1(t) \ u'(x, t) + \mu_2(t) \ u'(x, t-\tau) = 0 $$ in a bounded domain.
Abbes Benaissa   +2 more
doaj   +1 more source

On the Gauge Invariance of the Decay Rate of False Vacuum

open access: yes, 2017
We study the gauge invariance of the decay rate of the false vacuum for the model in which the scalar field responsible for the false vacuum decay has gauge quantum number.
Endo, Motoi   +3 more
core   +2 more sources

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