搜索结果: 1-15 共查到“理学 GEOMETRICAL”相关记录39条 . 查询时间(0.093 秒)
On the relationship between the geometrical control of scintillation indices and the data detrending problems observed at high latitudes
ionospheric scintillation GPS scintillation monitors scintillation indices
2015/9/2
The experimental estimate of radio waves scintillation, caused by plasma density irregularities in the ionosphere, is usually attempted by means of scintillation indices which are essentially standard...
In several recent reports, we have explained the frequency dependence of the apparent seismic quality-factor (Q) observed in many studies according to the effects of geometrical attenuation, which was...
Algebra in Cuneiform. Introduction to an Old Babylonian Geometrical Technique
Algebra in Cuneiform an Old Babylonian Geometrical Technique
2015/3/26
Around 1930, it was discovered that certain Babylonian cuneiform texts contain calculations that agree with what turns up in the solution of second-degree equations. Since the meaning of most of the t...
PHOTOINTERPRETATION AND SMALL SCALE STEREOPLOTTING WITH DIGITALLY RECTIFIED PHOTOGRAPHS WITH GEOMETRICAL CONSTRAINTS1
Architectural photogrammetry self-calibration rectification,
2015/3/6
It is well know that it is possible to use the vanishing point geometry to assess the orientation parameters of the photographic image.
Here we propose a numerical or graphical procedure to estimate...
A steady state capturing and preserving method for computing hyperbolic systems with geometrical source terms having concentrations
Shallow water equations Nozzle flow equations Discontinuous topography well-balanced scheme surface gradient method Shock capturing
2012/8/8
A steady state capturing and preserving method for computing hyperbolic systems with geometrical source terms having concentrations 。
Geometrical structure of Laplacian eigenfunctions
Laplace operator eigenfunctions eigenvalues localization
2012/6/25
We review the properties of eigenvalues and eigenfunctions of the Laplace operator in bounded Euclidean domains with Dirichlet, Neumann or Robin boundary condition. We keep the presentation at a level...
Geometrical defects in two-dimensional melting of many-particle Yukawa systems
Geometrical defects two-dimensional melting many-particle Yukawa systems Plasma Physics
2012/5/17
We perform Langevin dynamics simulations and use polygon construction method to investigate two-dimensional (2D) melting and freezing transitions in many-particle Yukawa systems. 2D melting transition...
Practical implications of the geometrical sensitivity of elastic dislocation models for field geologic surveys
Subduction zone seismic cycle deformation Sensitivity to plate geometry and slip distribution Coastal uplift and hingeline Elastic subducting plate model Backslip model Geodetic data inversion
2014/4/9
Geodetic observations of both coseismic and interseismic surface deformationfields in the vicinity of subduction zones are frequently interpreted using simple elastic dislocation models (EDMs). The ge...
The Geometrical Satake Correspondence for Ramified Groups
Geometrical Satake Correspondence Ramified Groups Number Theory
2011/9/22
Abstract: We prove the geometrical Satake isomorphism for a reductive group defined over F=k((t)), and split over a tamely ramified extension. As an application, we give a description of the nearby cy...
Geometrical exponents of contour loops on synthetic multifractal rough surfaces: multiplicative hierarchical cascade p-model
Geometrical exponents contour loops multiplicative hierarchical cascade p-model
2011/8/18
Abstract: In this paper, we study many geometrical properties of the contour loops to characterize the morphology of typical synthetic multifractal surfaces following multiplicative hierarchical casca...
Leptogenesis in a SUSY SU(5) x T' Model with Geometrical CP Violation
Leptogenesis in a SUSY SU(5) x T' Model with Geometrical CP Violation
2011/10/14
The complex Clebsch-Gordon coefficients in the double tetrahedral group T' offers the possibility that CP violation can be entirely geometrical in origin, as pointed out by us recently. In this note, ...
Absolute instruments and perfect imaging in geometrical optics
Absolute instruments perfect imaging geometrical optics
2011/8/4
Abstract: We investigate imaging by spherically symmetric absolute instruments that provide perfect imaging in the sense of geometrical optics. We derive a number of properties of such devices, presen...
Circular planar nearrings: geometrical and combinatorial aspects
Planar nearring BIBD Circular Disk Field
2011/1/18
Let (N, Φ) be a circular Ferrero pair. We define the disk with center b and radius a, D(a; b), as D(a; b) = {x ∈ Φ(r) +c | r 6= 0, b ∈ Φ(r) +c, |(Φ(r) +c) ∩ (Φ(a)+b)| = 1}.We prove that in the field-g...
Mathematics and Morphogenesis of the City, A Geometrical approach
Adaptation and Self-Organizing Systems(nlin.AO) Mathematical Physics(math-ph) Physics and Society(physics.soc-ph)
2010/11/10
Cities can be compared to living organisms. They are out of equilibrium, opened systems that never stop developing and sometimes die. The city’s growth is guided by needs in local distribution and in ...
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
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 ...