搜索结果: 1-15 共查到“理学 Visibility”相关记录18条 . 查询时间(0.062 秒)
Seismic visibility of a deep subduction channel – insights from numerical simulation of high-frequency seismic waves emitted from intermediate depth earthquakes
Seismic visibility deep subduction channel numerical simulation high-frequency seismic waves emitted intermediate depth earthquakes
2015/1/6
Return flow in a deep subduction channel (DSC) has been proposed to explain rapid exhumation of high pressure–low temperature metamorphic rocks, entirely based on the fossil rock record. Supported by ...
Carbonaceous and Ionic Components of Atmospheric Fine Particles in Beijing and Their Impact on Atmospheric Visibility
PM2.5 OC EC Ion Visibility
2016/3/25
Ground-based observation of fine particulate matter (PM2.5) in Beijing was carried out continuously in 2006. The
carbonaceous and ionic components, as well as their distribution characteristics and s...
Hausdorff dimension of visibility sets for well-behaved continuum percolation in the hyperbolic plane
Boolean model continuum percolation fractal geometry Hausdorff-dimension hyperbolic geometry
2011/7/27
Abstract: Let Z be a so-called well-behaved percolation, i.e. a certain random closed set in the hyperbolic plane, whose law is invariant under all isometries; for example the covered region in a Pois...
Asymptotics of visibility in the hyperbolic plane
Boolean model hyperbolic geometry visibility Poincar´ e disc
2011/2/25
At each point of a Poisson point process of intensity in the hyperbolic place, center a ball of bounded random radius. Consider the probability Pr that from a fixed point, there is some direction in...
Unsolved Problems in Visibility Graphs of Points, Segments and Polygons
Unsolved Problems Visibility Graphs of Points Segments Polygons
2011/3/3
In this survey paper, we present open problems and conjectures on visibility graphs of points, segments and polygons along with necessary backgrounds for understanding them.
Horizontal visibility graphs transformed from fractional Brownian motions: Topological properties versus Hurst index
Horizontal visibility graphs transformed fractional Brownian motions Topological properties versus Hurst index
2010/12/28
Nonlinear time series analysis aims at understanding the dynamics of stochastic or chaotic processes.In recent years, quite a few methods have been proposed to transform a single time series to a comp...
Description of stochastic and chaotic series using visibility graphs
Data Analysis, Statistics and Probability (physics.data-an) Chaotic Dynamics (nlin.CD)
2010/11/10
Nonlinear time series analysis is an active field of research that studies the structure of complex signals in order to derive information of the process that generated those series, for understanding...
High-visibility nonclassical interference between pure heralded single photons and weak coherent photons
High-visibility pure heralded single photons weak coherent photons
2010/11/9
We present an experiment of nonclassical interference between a pure heralded single-photon state and a weak coherent state. Our experiment is the first to demonstrate that spectrally pure single phot...
The "Blue Sky Project" was proposed in 1998 to investigate by how much emissions should be reduced to increase blue sky frequency in Beijing, which hosted the Summer Olympics in 2008. This paper focus...
Urban Aerosol Studies of PM1 Size Fraction with Reference to Ambient Conditions and Visibility
PM1 Urban aerosol Size distribution Aerosol extinction coefficient Nanoparticles
2016/3/29
Mass measurement of ambient PM10 and PM2.5 size fractions is a rather well established technique. However there is a
broad consensus in the scientific community about the importance of smaller partic...
Using Sharpness Image with Haar Function for Urban Atmospheric Visibility Measurement
Atmospheric visibility digital image processing Haar function filtering
2016/3/29
Air quality affects human health, traffic safety and human life quality. The status of air quality can be indicated by the
urban atmospheric visibility. The atmospheric visibility is traditionally th...
Horizontal visibility graphs: exact results for random time series
Horizontal visibility graphs random time series
2010/4/2
The visibility algorithm has been recently introduced as a mapping between time series and complex networks. This procedure allows to apply methods of complex network theory for characterizing time se...
Quantifying high z galaxy selection and visibility with the COSMOPACK tool
z galaxy selection COSMOPACK tool
2009/6/12
Quantifying high z galaxy selection and visibility with the COSMOPACK tool。
HI Fluctuations at Large Redshifts：I -Visibility correlation
large scale structures diffuse radiation
2009/5/20
We investigate the possibility of probing the large scale
structure in the universe at large redshifts by studying fluctuations in the
redshifted 1420 MHz emission from the neutral hydrogen (HI) at ...
Solutions of some visibility and contour problems in the visualisation of surfaces
Computer graphics visualisation visibility and contour problems
2009/1/4
We give a short survey of the main principles of our software
for the visualisation and animation in mathematics and study the visibility
and contour problems in the representation of surfaces, whic...