搜索结果: 1-15 共查到“理学 Parametrization”相关记录17条 . 查询时间(0.098 秒)
Multiobjective H_2/H_infinity-optimal control via finite dimensional Q-parametrization and linear matrix inequalities
Controller design convex semidefinite programming impulse response
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2015/8/11
The problem of multi-objective H2/H-infinity optimal controller design is reviewed. There is as yet no exact solution to this problem. We present a method based on that proposed by Scherer. The proble...
Nonlinear Youla Parametrization and Information Constraints for Decentralized Control
Information Constraints Parametrization
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2015/6/19
We present a generalization of the Youla parametrization for discrete-time nonlinear systems, and give conditions when a constrained set of controllers and a set of Youla parameters correspond to each...
A bulk parametrization of melting snowflakes with explicit liquid water fraction for the COSMO model
melting snowfl akes explicit liquid water fraction
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2014/12/12
A new snow melting parametrization is presented
for the non-hydrostatic limitedarea COSMO (“consortium
for small-scale modelling”) model.
Coupling a new turbulence parametrization to RegCM adds realistic stratocumulus clouds
turbulence parametrization RegCM adds realistic stratocumulus
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2014/12/10
To model stratocumulus clouds in the regional climate model, RegCM4.1, the University of Washington (UW)
turbulence parametrization has been coupled to RegCM. We
describe improvements in RegCM’s coa...
Phase space parametrization of rain: the inadequacy of the gamma distribution
Phase space parametrization of rain the inadequacy of gamma distribution
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2012/11/23
We show that the Gamma distribution is not an adequate fit for the probability density function of drop diameters using the Kolmogorov-Smirnov goodness of fit test. We propose a different parametrizat...
Constraining dynamical dark energy with a divergence-free parametrization in the presence of spatial curvature and massive neutrinos
Constraining dynamical dark energy divergence-free parametrization presence spatial curvature massive neutrinos
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2012/2/21
In this paper, we report the results of constraining the dynamical dark energy with a divergence-free parameterization, $w(z) = w_{0} + w_{a}(\frac{\ln(2+z)}{1+z}-\ln2)$, in the presence of spatial cu...
Approximate Parametrization of Space Algebraic Curves
Approximate Parametrization Space Algebraic Curves Algebraic Geometry
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2011/8/30
Abstract: Given a non-rational real space curve and a tolerance $\epsilon>0$, we present an algorithm to approximately parametrize the curve. The algorithm checks whether a planar projection of the sp...
Radial extension of a bi-Lipschitz parametrization of a starlike Jordan curve
Radial extension bi-Lipschitz parametrization
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2010/11/24
In this paper we discus the radial extension $w$ of a bi-Lipschitz parameterization $F(e^{it})=f(t)$ of a starlike Jordan curve $\gamma$ w.r. to $0$. We show that, if parameterization is bi-Lipschitz,...
A parametrization of the abstract Ramsey theorem
parametrization the abstract Ramsey theorem
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2010/11/23
We give a parametrization with perfect subsets of $2^{\infty}$ of the abstract Ramsey theorem (see \cite{todo}) Our main tool is an extension of the parametrized version of the combinatorial forcing d...
Optimal bounded trigonometry control of N-level quantum systems based on the geometrical parametrization
Optimal bounded trigonometry control N-level quantum systems based geometrical parametrization
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2010/11/5
Based on the observation that the pure states of $N-$level quantum systems can be expressed in terms of $2(N-1)$ real geometric parameters, we make full use of distinguished properties of generalized ...
Algorithms for Del Pezzo Surfaces of Degree 5 (Construction, Parametrization)
Algorithms Del Pezzo Surfaces of Degree 5
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2010/12/9
It is well known that every Del Pezzo surface of degree 5 defined over k is parametrizable over k. In this paper we give an efficient construction for parametrizing, as well as algorithms for construc...
Casas-Ibarra parametrization and leptogenesis
Casas-Ibarra parametrization type-I seesaw leptogenesis
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2009/12/24
The Casas-Ibarra parametrization is a description of the Dirac neutrino mass matrix MD in terms of the neutrino mixing matrix V, an orthogonal matrix O and the diagonal mass matrices of light and heav...
A new parametrization for ambient particle formation over coniferous forests and its potential implications for the future
ambient particle formation coniferous forests potential implications future
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2009/11/9
Atmospheric new particle formation is a general phenomenon observed over coniferous forests. So far nucleation is either parameterised as a function of gaseous sulphuric acid concentration only, which...
Parametrization of Contaminant Transport through an Anisotropic Unconfined Aquifer
Parametrization Contaminant Transport Anisotropic Unconfined Aquifer
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2009/10/28
A duo two-dimensional deterministic model of contaminant transport through
a homogeneous and anisotropic unconfined aquifer is developed. This model
is then utilized to evaluate the effects of such ...
On the Parametrization of Basal Heat Flux for Sea-ice Modelling
Arctic oceanography climate modelling climate change ice-ocean heat flux
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2009/6/10
A sea-ice model is used to investigate the ice-ocean heat flux that occurs at the base of the ice. The source of this basal heat flux is supposed in reality to arise from physical processes (e.g. ocea...