Zobrazeno 1 - 10
of 935
pro vyhledávání: '"Heyman, J."'
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Heyman, J. N., Weiss, E. M., Rollag, J. R., Yu, K. M., Dubon, O. D., Kuang, Y. J., Tu, C. W., Walukiewicz, W.
THz Time-Resolved Photoconductivity is used to probe carrier dynamics in the dilute III-V nitride GaP0.49As0.47N0.036. In these measurements a femtosecond optical pump-pulse excites electron-hole pairs, and a delayed THz pulse measures the change in
Externí odkaz:
http://arxiv.org/abs/1805.04043
Publikováno v:
Journal of Geophysical Research 19, 1751-1767, 2014
This article examines the spatial {dynamics of bed load particles} in water. We focus particularly on the fluctuations of particle activity, which is defined as the number of moving particles per unit bed {length}. Based on a stochastic model recentl
Externí odkaz:
http://arxiv.org/abs/1611.04129
Publikováno v:
Geophysical Research Letters 40(1), 128-133, 2013
Steep slope streams show large fluctuations of sediment discharge across several time scales. These fluctuations may be inherent to the internal dynamics of the sediment transport process. A probabilistic framework thus seems appropriate to analyze s
Externí odkaz:
http://arxiv.org/abs/1611.04134
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
The $\mu(I)$-rheology has been recently proposed as a potential candidate to model the flow of frictional grains in a dense inertial regime. However, this rheology was shown to be ill-posed in the mathematical sense for a large range of parameters, n
Externí odkaz:
http://arxiv.org/abs/1609.01502
Autor:
Heyman, J. N., Schwartzberg, A. M., Yu, K. M., Luce, A. V., Dubon, O. D., Kuang, Y. J., Tu, C. W., Walukiewicz, W.
Publikováno v:
Phys. Rev. Applied 7, 014016 (2017)
We have used transient absorption spectroscopy to measure carrier lifetimes in the multiband band semiconductor GaPAsN. These measurements probe the electron populations in the conduction band, intermediate band and valance band as a function of time
Externí odkaz:
http://arxiv.org/abs/1608.05375
In gravel-bed rivers, bedload transport exhibits considerable variability in time and space. Recently, stochastic bedload transport theories have been developed to address the mechanisms and effects of bedload transport fluctuations. Stochastic model
Externí odkaz:
http://arxiv.org/abs/1604.00769
Publikováno v:
Water Resources Research; Jun2024, Vol. 60 Issue 6, p1-18, 18p
We investigated negative photoconductivity in graphene using ultrafast terahertz techniques. Infrared transmission was used to determine the Fermi energy, carrier density and mobility of p-type CVD graphene samples. Time-resolved terahertz photocondu
Externí odkaz:
http://arxiv.org/abs/1410.7495