搜索结果: 136-150 共查到“理学 Small”相关记录480条 . 查询时间(0.099 秒)
Small time asymptotics for stochastic evolution equations
Stochastic partial differential equations small time asymp-totics
2011/1/18
We obtain a large deviation principle describing the small time asymp-totics of the solution of a stochastic evolution equation with multiplicative noise. Our assumptions are a condition on the linear...
Asymptotic stability of small solitary waves for nonlinear Schrödinger equations with electromagnetic potential in $ \mathbb{R}^3$
Asymptotic stability of small solitary waves nonlinear Schrö dinger equations electromagnetic potential $ \mathbb{R}^3$
2011/1/17
We consider the nonlinear magnetic Schr¨odinger equation for u : R3 × R → C,iut = (i∇ + A)2u + V u + g(u), u(x, 0) = u0(x),where A : R3 → R3 is the magnetic potential, V : R3 → R is the electric...
Speeding up evolutionary search by small fitness fluctuations
Speeding up evolutionary search fitness fluctuations
2011/1/5
We consider a fixed size population that undergoes an evolutionary adaptation in the weak mutuation rate limit, which we model as a biased Langevin process in the genotype space. We show analytically ...
The results of some experiments on convection by surface heating in a simple numerical model for small-scale processes in the dry atmosphere
Numerical Atmospheric Model Finite Difference
2010/9/27
The model described in this paper represents the flow of dry air in one horizontal dimension of domain length 64 km and the vertical dimension of height 16 km (the height of the tropopause in tropical...
Small (2,s)-colorable graphs without 1-obstacle representations
Small (2,s)-colorable graphs 1-obstacle representations
2011/3/4
An obstacle representation of a graph G is a set of points on the plane together with a set of polygonal obstacles that determine a visibility graph isomorphic to G. The obstacle number of G is the mi...
In the small phylogeny problem we, are given a phylogenetic tree and gene orders of the extant species and our goal is to reconstruct all of the ancestral genomes so that the number of evolutionary op...
The Need to Regularise Activities of Illegal Small-Scale Mining in Ghana: A Focus on the Tarkwa-Dunkwa Highway*
Law Small-Scale Mining Regularise Ghana
2013/3/6
Southwest Ghana is a major gold producing region. The current high gold price has attracted hundreds of unemployed youth to undertake small-scale mining (SSM). Most of these miners operate illegally e...
Elementary characterisation of small quantaloids of closed cribles
Elementary characterisation small quantaloids of closed cribles
2011/2/22
Each small site (C, J) determines a small quantaloid of closed cribles R(C, J). We prove
that a small quantaloid Q is equivalent to R(C, J) for some small site (C, J) if and only if
there exists a (...
Physical and chemical consequences of artificially deepened thermocline in a small humic lake – a paired whole-lake climate change experiment
Physical chemical consequences artificially deepened thermocline
2010/12/22
Climate change with higher air temperatures and changes in cloud cover, radiation and wind speed alters the heat balance and stratification patterns of lakes. A paired whole-lake thermocline manipulat...
The phase boundary for the chiral transition in (2+1)-flavor QCD at small values of the chemical potential
the chiral transition (2+1)-flavor QCD
2011/1/6
We determine the chiral phase transition line in (2+1)-flavor QCD for small values of the light quark chemical potential. We show that for small values of the chemical potential the curvature of the p...
The phase boundary for the chiral transition in (2+1)-flavor QCD at small values of the chemical potential
the chiral transition (2+1)-flavor QCD
2011/1/6
We determine the chiral phase transition line in (2+1)-flavor QCD for small values of the light quark chemical potential. We show that for small values of the chemical potential the curvature of the p...
The XMM-Newton survey of the Small Magellanic Cloud: A new X-ray view of the symbiotic binary SMC3
The XMM-Newton survey the Small Magellanic Cloud
2011/1/11
The XMM-Newton survey of the Small Magellanic Cloud (SMC) was performed to study the population of X-ray sources in this neighbouring galaxy. During one of the observations, the symbiotic binary SMC3 ...
The XMM-Newton survey of the Small Magellanic Cloud: Discovery of the 11.866 s Be/X-ray binary pulsar XMMUJ004814.0-732204 (SXP11.87)
The XMM-Newton survey the Small Magellanic Cloud
2011/1/11
One of the goals of the XMM-Newton survey of the Small Magellanic Cloud is the study of the Be/X-ray binary population. During one of our first survey observations a bright new transient - XMMUJ004814...
SMC SMP 24: A newly radio-detected planetary nebula in the small magellanic cloud
SMC SMP 24 newly radio-detected planetary nebula
2011/1/10
In this paper we report new radio-continuum detection of an extragalactic PN: SMC SMP 24. We show the radio-continuum image of this PN and present the measured radio data. The newly reduced radio obse...
Possible Origin of the Anomalous Far-infrared Absorption by Small Metal Particles
Origin of the Anomalous Far-infrared Absorption Small Metal Particles
2010/11/18
We have carried out far-infrared (far-IR) transmission measurements on the ligand stabilized
Au55 particles dispersed in CsI at volume fraction f = 0.002. We have found that while the
absorption coe...