搜索结果: 1-15 共查到“理学 Shocks”相关记录39条 . 查询时间(0.088 秒)
Accelerometric radiation simulation for the September 26,1997 Umbria-Marche (Central Italy) main shocks
kinematic source model strong motion simulation Umbria-Marche main shocks
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2015/9/28
We applied a hybrid stochastic-deterministic method to simulate the strong ground motion characteristics associated with the September 26, 1997 Umbria-Marche main shocks. One hundred different rupture...
Dynamic Spatial Panel Models: Networks, Common Shocks, and Sequential Exogeneity
Spatial Panel Models Networks
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2015/9/24
This paper considers a class of GMM estimators for general dynamic panel models,
allowing for cross sectional dependence due to spatial lags and due to unspecified common shocks. We signiᤙ...
Rupture history of the 1997 Umbria-Marche (Central Italy) main shocks from the inversion of GPS, DInSAR and near field strong motion data
slip history waveform inversion geodetic data modeling Colfiorito earthquakes kinematic source models
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2015/9/15
We investigate the rupture history of the three largest magnitude earthquakes of the 1997 Umbria-Marche sequence by inverting GPS, DInSAR and near-source strong motion waveforms. We use the frequency ...
SUPERIOR INFORMATION, INCOME SHOCKS, AND THE PERMANENT INCOME HYPOTHESIS
SUPERIOR INFORMATION INCOME SHOCKS
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2015/7/23
According to the permanent income hypothesis with quadratic
preferences, households save for a rainy day the transitory component of
income innovations and consume entirely the permanent one. The mo...
Powerful H$_2$ Line-cooling in Stephan's Quintet : I - Mapping the Significant Cooling Pathways in Group-wide Shocks,
intergalactic medium shock waves
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2014/12/22
We present results from the mid-infrared spectral mapping of Stephan's Quintet using the Spitzer Space Telescope. A 1000 km/s collision has produced a group-wide shock and for the first time the large...
Microinstabilities at perpendicular collisionless shocks: A comparison of full particle simulations with different ion to electron mass ratio
Microinstabilities perpendicular collisionless shocks comparison of full particle simulations electron mass ratio Plasma Physics
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2012/4/24
A full particle simulation study is carried out for studying microinstabilities generated at the shock front of perpendicular collisionless shocks. The structure and dynamics of shock waves are determ...
Effects of Leakage Neutral Particles on Shocks
Effects Leakage Neutral Particles Shocks
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2012/2/23
The interstellar medium is not necessary fully ionized. When a shock propagates into the partially ionized medium, some neutral particles leak into the upstream region from the downstream region. In t...
Global Stability of Steady Transonic Euler Shocks in Quasi-One-Dimensional Nozzles
Transonic Euler Shocks Global Stability Quasi-One-Dimensional Nozzles Analysis of PDEs
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2011/9/22
Abstract: We prove global in time dynamical stability of steady transonic shock solutions in divergent quasi-one-dimensional nozzles. We assume neither the smallness of the relative slope of the nozzl...
Evidence for mild deviation from power-law distribution of electrons in relativistic shocks: GRB 090902B
radiation mechanisms: non-thermal - methods: analytical - methods: numerical- gamma-rays: bursts, theory - gamma-ray burst: individual: GRB090902B
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2011/9/29
Many previous studies have determined that the long lasting emission at X-ray, optical and radio wavelengths from gamma-ray bursts (GRBs), called the afterglow, is likely produced by the external forw...
Mapping photodissociation and shocks in the vicinity of Sgr A*
astrochemistry – Galaxy abundances – Galaxy center – Galaxy
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2010/11/16
Aims. We study the chemistry in the harsh environments of galactic nuclei using the nearest one, the Galactic center (GC).Methods. We have obtained maps of the molecular emission within the central fi...
The Role of Diffusive Shock Acceleration on Nonequilibrium Ionization in Supernova Remnant Shocks II: Emitted Spectra
High Energy Astrophysical Phenomena (astro-ph.HE)
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2011/1/6
We present a grid of nonequilibrium ionization models for the X-ray spectra from supernova remnants undergoing efficient diffusive shock acceleration. The calculation follows the hydrodynamics of the ...
Computation of synthetic spectra from simulations of relativistic shocks
High Energy Astrophysical Phenomena (astro-ph.HE) Classical Physics (physics.class-ph)
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2010/12/24
Particle-in-cell (PIC) simulations of relativistic shocks are in principle capable of predicting the spectra of photons that are radiated incoherently by the accelerated particles. The most direct met...
Cosmic-ray current driven turbulence in shocks with efficient particle acceleration: the oblique, long-wavelength mode instability
High Energy Astrophysical Phenomena (astro-ph.HE) Plasma Physics (physics.plasm-ph)
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2010/12/23
In order for diffusive shock acceleration (DSA) to accelerate particles to high energies, the energetic particles must be able to interact with magnetic turbulence over a broad wavelength range.
Coherent Structures and Carrier Shocks in the Nonlinear Periodic Maxwell Equations
Coherent Structures Carrier Shocks Nonlinear Periodic Maxwell Equations
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2010/12/15
We consider the one-dimensional propagation of electromagnetic waves in a weakly nonlinear
and low-contrast spatially inhomogeneous medium with no energy dissipation. We focus on the case of a period...
The spectrum of Cosmic Rays escaping from relativistic shocks
Cosmic Rays relativistic shocks
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2010/3/8
We derive expressions for the time integrated spectrum of Cosmic Rays (CRs) that are accelerated in a decelerating relativistic shock wave and escape ahead of the shock. It is assumed that at any give...