搜索结果: 1-15 共查到“理学 velocities”相关记录52条 . 查询时间(0.062 秒)
Atmospheric anomalies over Mt.Etna using GPS signal delays and tomography of radio wave velocities
GPS atmospheric anomalies tropospheric delays tomography of radio wave velocities
2015/9/2
Due to the prominent topography of Mt. Etna, the use of satellite geodetic techniques may significantly suffer from atmospheric heterogeneities. This problem mainly affects the DInSAR technique. To ov...
Crust and upper mantle velocity structure of the northwestern Indian Peninsular Shield from inter-station phase velocities of Rayleigh and Love waves
mantle velocity Indian Peninsular Shield
2015/8/17
We measure the inter-station Rayleigh and Love wave phase velocities
across the northwestern Indian Peninsular shield (NW-IP) through crosscorrelation
and invert these velocities to evaluate the und...
Crust and upper mantle velocity structure of the northwestern Indian Peninsular Shield from inter-station phase velocities of Rayleigh and Love waves
Cratons Surface waves Lithosphere-Asthenosphere boundary Indian Peninsular shield
2015/8/14
We measure the inter-station Rayleigh and Love wave phase velocities across the northwestern Indian Peninsular shield (NW-IP) through cross-correlation and invert these velocities to evaluate the unde...
GENERALIZED SURFACE QUASI-GEOSTROPHIC EQUATIONS WITH SINGULAR VELOCITIES
GENERALIZED SURFACE QUASI-GEOSTROPHIC EQUATIONS SINGULAR VELOCITIES
2014/4/3
This paper establishes several existence and uniqueness results for two families of active scalar equations with velocity elds determined by the scalars through very singular integrals. The rst fami...
Correlation of Seismic P-Wave Velocities with Engineering Parameters (N Value and Rock Quality) for Tropical Environmental Study
Geoscientists Geophysical N Value Rock Quality Environmental
2013/3/11
The physical parameters of the subsurface from the environmental site investigation are important for geoscientists and engineers to understand and very low cost-effective method, especially when comb...
Validity of the Refraction Microtremors (ReMi) Method for Determining Shear Wave Velocities for Different Soil Types in Egypt
Refraction Microtremors ReMi Crosshole Downhole Shear Wave Egypt
2013/3/7
The Refraction Microtremor (ReMi) method is being used around the world by the geotechnical and geophysical community to determine shear-wave velocities. This is due to its faster, less expensive and ...
The HARPS search for southern extra-solar planets. XXXI. Magnetic activity cycles in solar-type stars: statistics and impact on precise radial velocities
Planetary systems – Stars: activity – Stars: chromospheres – Line: profi les – Techniques: radial velocities – Techniques:spectroscopic
2011/10/17
Context. Searching for extrasolar planets through radial velocity measurements relies on the stability of stellar photospheres. Aims. We aim at characterizing the statistical properties of magnetic ac...
Pairwise Velocities of Dark Matter Halos: a Test for the Lambda Cold Dark Matter Model using the Bullet Cluster
method : N-body simulations — galaxies : evolution — galaxies : for-mation — galaxies: clusters — cosmology : theory — cosmology : dark matter
2011/10/13
The existence of a bullet cluster (such as 1E0657-56) poses a challenge to the concordance Lambda cold dark matter model. Here we investigate the velocity distribution of dark matter halo pairs in lar...
Minimal Number of Discrete Velocities for a Flow Description
Minimal Number Discrete Velocities Flow Description
2011/8/17
Abstract: It seems intuitively correct to describe fluid flows by using fictitious particles hopping on homogeneously separated nodes with a given finite set of discrete velocities, however, it is not...
Minimal Number of Discrete Velocities for a Flow Description
Minimal Number of Discrete Velocities Computational Physics Fluid Dynamics
2011/9/13
Abstract: It seems intuitively correct to describe fluid flows by using fictitious particles hopping on homogeneously separated nodes with a given finite set of discrete velocities, however, it is not...
Relative velocities for radial motion in expanding Robertson-Walker spacetimes
Robertson-Walker cosmology Fermi relative velocity kinematic relative velocity astrometric relative velocity
2011/7/28
Abstract: The expansion of space, and other geometric properties of cosmological models, can be studied using geometrically defined notions of relative velocity. In this paper, we consider test partic...
Warm dark matter at small scales: peculiar velocities and phase space density
Warm dark matter small scales peculiar velocities phase space density
2010/11/12
We study the scale and redshift dependence of the power spectra for density perturbations and
peculiar velocities, and the evolution of a coarse grained phase space density for (WDM) particles that d...
Modeling maximum astrophysical gravitational recoil velocities
maximum astrophysical gravitational recoil velocities
2010/11/16
We measure the recoil velocity as a function of spin for equal-mass, highly-spinning black-hole
binaries, with spins in the orbital plane, equal in magnitude and opposite in direction. We con rm that...
Modeling maximum astrophysical gravitational recoil velocities
Modeling maximum astrophysical gravitational recoil velocities
2010/12/20
We measure the recoil velocity as a function of spin for equal-mass, highly-spinning black-hole
binaries, with spins in the orbital plane, equal in magnitude and opposite in direction. We con rm that...
Perturbative effects of spinning black holes with applications to recoil velocities
Perturbative effects of spinning black holes applications recoil velocities
2010/12/20
Recently, we proposed an enhancement of the Regge-Wheeler-Zerilli formalism for first-order perturbations about a Schwarzschild background that includes first-order corrections due to the background b...