Results 71 to 80 of about 1,304,136 (197)

Neutrino Lasing in the Sun [PDF]

, 1993
Applying the phenomenon of neutrino lasing in the solar interior, we show how the rate for the generic neutrino decay process `\nu -> fermion + boson', can in principal be enhanced by many orders of magnitude over its normal decay rate.
A. Acker, A. Acker, A. Suzuki, E. Witten, G. D. Starkman, H. A. Bethe, J. A. Frieman, J. N. Bahcall, J. N. Bahcall, K. Choi, K. S. Hirata, L. Wolfenstein, L. Wolfenstein, M. N. Butler, N. Kaiser, P. Anselmann, R. A. Malaney, R. Davis, R. N. Mohapatra, S. P. Mikheyev, V. Barger, V. N. Gavrin, Y. Chikashige, Z. G. Berezhiani, Z. G. Berezhiani, Z. G. Berezhiani, Z. G. Berezhiani   +26 more
core   +2 more sources

The effect of water turnover time on decomposition of wild rice (Zizania latifolia) and nutrient dynamics in an artificial wetland system [PDF]

Journal of Ecology and Environment, 2014
The effect of different turnover time of water on the decomposition of emergent macrophyte litter (Zizania latifolia Griseb.) was investigated using a microcosm experiment.
Jae Geun Kim, Bo Eun Lee
doaj   +1 more source

Decay rate and renormalized frequency shift of a quantum wire Wannier exciton in a planar microcavity

, 2001
The superradiant decay rate and frequency shift of a Wannier exciton in a one-dimensional quantum wire are studied. It is shown that the dark mode exciton can be examined experimentally when the quantum wire is embedded in a planar microcavity.
A.L. Ivanov, A.V. Kavokin, B. Deveaud, B. Kramer, C. Constaintin, Der-San Chuu, E. Hanamura, F. Arechi, G. Björk, J. Knoester, J.J. Hopfield, K.C. Liu, K.C. Liu, M. Gross, M.A. Kaliteevski, N. Skiribanowitz, R.A. Römer, R.H. Dicke, T. Brandes, T. Ogawa, V. Agranovich, V. Ernst, V.M. Agranovich, Y. Manabe, Y.C. Lee, Y.C. Lee, Y.C. Lee, Y.N. Chen, Ya. Aaviksoo, Yueh-Nan Chen   +29 more
core   +1 more source

Sedimentary eDNA provides different information on timescale and fish species composition compared with aqueous eDNA

Environmental DNA, 2020
Aqueous environmental DNA (eDNA) analysis has been applied to the monitoring of various ecosystems and taxa, and the characteristics of aqueous eDNA have been previously studied.
Masayuki K. Sakata, Satoshi Yamamoto, Ryo O. Gotoh, Masaki Miya, Hiroki Yamanaka, Toshifumi Minamoto   +5 more
doaj   +1 more source

Harnessing decay rates for coastal marine biosecurity applications: A review of environmental DNA and RNA fate

Environmental DNA, 2023
Marine nonindigenous species (NIS) are spreading at an alarming rate internationally through anthropogenic activities such as shipping and aquaculture, affecting local biodiversity and negatively impacting the ecosystem and human well‐being.
Michelle Scriver, Anastasija Zaiko, Xavier Pochon, Ulla vonAmmon   +3 more
doaj   +1 more source

Differentiability, analyticity and optimal rates of decay for damped wave equations

Electronic Journal of Differential Equations, 2012
We give necessary and sufficient conditions on the damping term of a wave equation for the corresponding semigroup to be analytic. We characterize damped operators for which the corresponding semigroup is analytic, differentiable, or exponentially ...
Luci Harue Fatori, Maria Zegarra Garay, Jaime E. Munoz Rivera   +2 more
doaj  

Decay rates of Neutral Mesons [PDF]

Physical Review Letters, 1962
The partial width for the observed decay mode ω→π^++π^-+π^0 can be estimated by assuming, in the sense of dispersion theory, that the process is dominated by ω→p+π followed by p→2π. We treat p as a nearly stable particle and define a coupling parameter f_(ωpπ).
M. Gell-Mann, D. Sharp, W. G. Wagner
openaire   +2 more sources

Analysis of the Fractal Dimension, b-value, Slip Ratio, and Decay Rate of Aftershock Seismicity Following the 6 February 2023 (Mw 7.8 and 7.5) Türkiye Earthquakes

Fractal and Fractional
On 6 February 2023, Türkiye experienced a pair of consecutive earthquakes with magnitudes of Mw 7.8 and 7.5, and accompanied by an intense aftershock sequence.
Sherif M. Ali, Kamal Abdelrahman
doaj   +1 more source

Spin flip from dark to bright states in InP quantum dots

, 2003
We report measurements of the time for spin flip from dark (non-light emitting) exciton states in quantum dots to bright (light emitting) exciton states in InP quantum dots. Dark excitons are created by two-photon excitation by an ultrafast laser.
A. Vinattieri, C. Ulrich, D. W. Snoke, E. Blackwood, G. L. Bir, G. L. Bir, I. A. Yugova, I. V. Ignatiev, J. Hübner, M. Zundel, W. W. Rühle, X. Q. Zhou   +11 more
core   +1 more source

Quantization of energy and weakly turbulent profiles of solutions to some damped second-order evolution equations

Advances in Nonlinear Analysis, 2017
We consider a second-order equation with a linear “elastic” part and a nonlinear damping term depending on a power of the norm of the velocity. We investigate the asymptotic behavior of solutions, after rescaling them suitably in order to take into ...
Ghisi Marina, Gobbino Massimo, Haraux Alain   +2 more
doaj   +1 more source