搜索结果: 31-45 共查到“理学 noise”相关记录222条 . 查询时间(0.031 秒)
Matrix Completion with Noise
Matrix completion low-rank matrices semidefinite programming duality in optimization nuclear-norm minimization oracle inequalities compressed sensing
2015/6/17
On the heels of compressed sensing, a remarkable new field has very recently emerged. This field addresses a broad range of problems of significant practical interest, namely, the recovery of a data m...
Ergo d ici ty of Sto chastic 2D Navie r- Stokes eq uations with L′evy Noise
L′evy Noise Sto chastic
2015/4/3
The Navier-Stoke s e quations are the fundame ntal m o de l of the
fluids . De spite t he ir gre at physic al im p ortance , exist ence and
uniquenes s res ults for the e quations in the three -dime...
Investigating the long-term evolution of galaxies: Noise, cuspy halos and bars
cuspy halos bars
2014/12/26
I review the arguments for the importance of halo structure in driving galaxy evolution and coupling a galaxy to its environment. We begin with a general discussion of the key dynamics and examples of...
We present a theory for describing the evolution of a galaxy caused by stochastic events such as weak mergers, transient spiral structure, orbiting blobs, etc. This noise excites large-scale patterns ...
Using the theory describing the evolution of a galaxy halo due to stochastic fluctuations developed in the companion paper, we show that a halo quickly evolves toward the same self-similar profile, in...
Heat transfer sets the noise floor for ultrasensitive electronics（图）
ultrasensitive electronics noise
2014/12/1
A team of engineers and scientists has identified a source of electronic noise that could affect the functioning of instruments operating at very low temperatures, such as devices used in radio telesc...
The crust and uppermost mantle structure of Southern Peru from ambient noise and earthquake surface wave analysis
Central Andes flat subduction surface wave tomography
2014/4/10
Southern Peru is located in the northern Central Andes, which is the highest plateau along an active subduction zone. In this region, the Nazca slab changes from normal to flat subduction, with the as...
IMPLEMENTATION OF THE EU NOISE DIRECTIVE IN PROCESS OF URBAN PLANNING IN POLAND
Urban planning Environmental noise Acoustic climate Strategic Noise Map Poland
2014/4/24
In Poland spatial planning policies are described by a system of planning documents controlled by act of Spatial Planning and Land
Development of 27 March 2003. Sustainable development principle and...
Spurious velocity changes caused by temporal variations in ambient noise frequency content
Time-series analysis Interferometry Surface waves and free oscillations Coda waves
2014/4/10
Ambient seismic noise cross-correlations are now being used to detect temporal variations of seismic velocity, which are typically on the order of 0.1 per cent. At this small level, temporal variation...
Locating a scatterer in the active volcanic area of Southern Peru from ambient noise cross-correlation
Interferometry Wave scattering and diffraction Volcanic arc processes
2014/4/10
We report on a strong scatterer of seismic energy in the 5–10 s period range located in the volcanic arc of Southern Peru. It is superficially like an active noise source in that it produces a continu...
High-resolution 3D shallow crustal structure in Long Beach, California: Application of ambient noise tomography on a dense seismic array
High-resolution 3D shallow crustal structure in Long Beach California ambient noise tomography on a dense seismic array
2014/4/10
Ambient noise tomography has proven to be effective in resolving shallow earth structure. We applied ambient noise tomography on a dense seismic array in Long Beach, California. The array was composed...
Calculation of Some Expected Values for Parameterized Mean Model with Gaussian Noise
Calculation Expected Values Parameterized Mean Model Gaussian Noise
2012/11/23
This document derives several expected values related to the parameterized mean model with Gaussian noise and their simplified forms.
Predictor-corrector methods for a linear stochastic oscillator with additive noise
predictor-corrector method linear stochastic oscillator symplecticity stochastic Hamil-tonian system second moment mean-square convergence
2012/8/7
The predictor-corrector methods P(EC)k with equidistant discretization are applied to the nu-
merical integration of a linear stochastic oscillator. Their ability in preserving the symplecticity, the...
The Appearance of Noise Terms in Modified Adomian Decomposition Method for Quadratic Integral Equations
Modified Adomian Decomposition method Quadratic integral equation The noise Terms
2013/1/30
In this paper, we apply the modified Adomian Decomposition Method to get the numerical solutions of Quadratic integral equations. The appearance of noise terms in Decomposition Method was investigated...
Geometric Influences II: Correlation Inequalities and Noise Sensitivity
Influences geometric influences noise sensitivity correlation between increasing sets Talagrand’s bound Gaussian measure isoperimetric inequality
2012/6/25
In a recent paper, we presented a new definition of influences in product spaces of continuous distributions, and showed that analogues of the most fundamental results on discrete influences, such as ...