搜索结果: 1-15 共查到“理学 Propagating”相关记录52条 . 查询时间(0.078 秒)
The structure of the population inside the propagating front
Branch diffusion process of single particle particle
2015/9/25
We investigate the long-time and long-range behavior of branching diffusion processes (starting with a single particle) in two different situations: when the
branching potential has compact support a...
Imaging electric charge propagating along microbial nanowires（图）
microbial nanowires electric
2014/12/1
AMHERST, Mass. -– The claim by microbiologist Derek Lovley and colleagues at the University of Massachusetts Amherst that the microbe Geobacter produces tiny electrical wires, called microbial nanowir...
Propagating and evanescent internal waves in a deep ocean model
Propagating evanescent internal waves deep ocean model
2012/2/28
We present experimental and computational studies of the propagation of internal waves in a stratified fluid with an exponential density profile that models the deep ocean. The buoyancy frequency prof...
Deterministic production of free-propagating Fock states of programmable photon number from a single atom-cavity system
Deterministic production free-propagating Fock states programmable photon number single atom-cavity system
2012/2/28
We propose a mechanism for producing Fock states on demand leaking from a single mode optical cavity interacting with a single atom and a laser pulse. The number of photons can be chosen, as it is det...
Investigation on the scintillation reduction of elliptical vortex beams propagating in atmospheric turbulence
Atmospheric optics Free-space optical communication
2013/7/3
We numerically investigate the scintillation index of an elliptical vortex beam in both modest turbulence and strong turbulence. Numerical simulations are realized with random phase screen sc...
Experimental investigation on the scintillation index of vortex beams propagating in simulated atmospheric turbulence
Experimental investigation scintillation index vortex beams propagating simulated atmospheric turbulence
2013/7/3
The scintillation index of vortex beam in simu-lated atmospheric turbulence is experimentally investigated.The fluctuation of the intensity can be effectively reduced by vortex beams. In particular, t...
Propagating quantum coherence for a biological advantage
Propagating quantum coherence abiological advantage
2011/9/14
reaction centers, where excitations induce charge separation. Experimental evidence shows that a variety of photosynthetic systems can preserve quantum beats in this energy transfer process, even at r...
Technical Note: Propagating correlations in atmospheric inversions using different Kalman update smoothers
atmospheric Kalman update smoothers Technical Note
2011/2/25
The scheme to propagate correlations between on-line and off-line state variables in atmospheric inversions using the fixed-lag Kalman smoother proposed in Bruhwiler et al. (2005) is explained as a pr...
Propagating Waves in a Monolayer of Gas-Fluidized Rods
Propagating Waves Monolayer of Gas-Fluidized Rods
2010/11/22
We report on an observation of propagating compression waves in a quasi-two-dimensional onolayer of apolar granular rods uidized by an up ow of air. The collective wave speed is an order of magnitude ...
Characterizing and Propagating Modeling Uncertainties in Photometrically-Derived Redshift Distributions
Characterizing Propagating Modeling Uncertainties
2010/11/12
The uncertainty in the redshift distributions of galaxies has a significant potential impact on the cosmological parameter values inferred from multi-band imaging surveys. The accuracy of the photo-me...
The excitation of a two-level atom by a propagating light pulse
The excitation two-level atom propagating light pulse
2010/11/8
State mapping between atoms and photons, and photon-photon interactions play an important role in scalable quantum information processing. We consider the interaction of a two-level atom with a quant...
CRT: A numerical tool for propagating ultra-high energy cosmic rays through Galactic magnetic field models
Instrumentation and Methods for Astrophysics (astro-ph.IM)
2011/1/6
Deflection of ultra high energy cosmic rays (UHECRs) by the Galactic magnetic field (GMF) may be sufficiently strong to hinder identification of the UHECR source distribution. A common method for dete...
Robustness of bipartite Gaussian entangled beams propagating in lossy channels
Robustness bipartite Gaussian entangled beams propagating lossy channels
2010/10/20
Subtle quantum properties o er exciting new prospects in optical communications. Quan-
tum entanglement enables the secure exchange of cryptographic keys [1] and the distribu-
tion of quantum inform...
Effects of MHD slow shocks propagating along magnetic flux tubes in a dipole magnetic field
MHD slow shocks magnetic flux tubes dipole magnetic field
2009/11/12
Variations of the plasma pressure in a magnetic flux tube can produce MHD waves evolving into shocks. In the case of a low plasma beta, plasma pressure pulses in the magnetic flux tube generate MHD sl...
Nonlinear waves and solitons propagating perpendicular to the magnetic field in bi-ion plasma with finite plasma pressure
Nonlinear waves solitons propagating perpendicular magnetic field bi-ion plasma plasma pressure
2009/11/12
We investigate the nature of nonlinear waves propagating transverse to the magnetic field in a bi-ion plasma including plasma pressure. By using the conservation laws derived from the multi-ion fluid ...