Equation of time

Results: 210



#Item
61Physical quantities / Star / Limb darkening / Jeans instability / Free-fall time / Magnetic field / Mass / James Hopwood Jeans / Physics / Stellar astronomy / Astrophysics

Question 4. Starting from radiative transfer equation, suppose the source function is a linear a b ,v function of vertical optical depth S ,v (a) Please explain what is limb darkening effect using the surface intensiti

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Source URL: www.astro.ncu.edu.tw

Language: English - Date: 2014-05-12 00:06:46
62Tensors / Mathematics / Calculus of variations / Pullback / Tangent space / Symbol / Partial differential equation / Linear temporal logic / Differential geometry / Mathematical analysis / Differential topology

TIME DISCRETE GEODESIC PATHS IN THE SPACE OF IMAGES B. BERKELS, A. EFFLAND, M. RUMPF Abstract. In this paper the space of images is considered as a Riemannian manifold using the metamorphosis approach [24, 34, 35], where

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Source URL: numod.ins.uni-bonn.de

Language: English - Date: 2014-05-28 03:01:12
63Mathematics / Laplace transform / Transforms / Digital signal processing / Heat equation / Matrix exponential / Mathematical analysis / Differential equations / Fourier analysis

The distributions of some quantities for Erlang(2) risk models David C.M. Dickson and Shuanming Li Abstract We study the distributions of [1] the …rst time that the surplus reaches a given level and [2] the duration of

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Source URL: fbe.unimelb.edu.au

Language: English - Date: 2013-08-05 02:19:33
64Function / Expected value / Ordinary differential equations / Partial differential equation / Calculus of variations / Mathematics / Mathematical analysis / Calculus

THE COLLEGES OF OXFORD UNIVERSITY MATHEMATICS, JOINT SCHOOLS, AND COMPUTER SCIENCE SUNDAY 10 DECEMBER 2006 Time allowed: 2 12 hours For candidates applying for Mathematics, Mathematics & Statistics,

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Source URL: www.cs.ox.ac.uk

Language: English - Date: 2013-07-08 03:58:42
65Horology / Units of time / Celestial mechanics / Clocks / Sidereal time / Solar time / Orrery / Equation of time / Tropical year / Measurement / Time / Time scales

(Preprint) AASTIME IN THE 10,000-YEAR CLOCK Danny Hillis*, Rob Seaman†, Steve Allen#, and Jon Giorgini§ The Long Now Foundation is building a mechanical clock that is designed to keep time for the next 10,000

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Source URL: media.longnow.org

Language: English - Date: 2012-02-09 19:40:52
66Celestial coordinate system / Clocks / Horology / Celestial mechanics / Analemma / Gnomon / Equation of time / Declination / Armillary sphere / Measurement / Sundials / Time

The Mathematics of Sundials Liew Huay Ling, Lim Siew Yee and Helmer Aslaksen Department of Mathematics, National University of Singapore Semester 2, Abstract What is a Sundial?

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Source URL: www.math.nus.edu.sg

Language: English - Date: 2001-06-23 20:14:22
67Control theory / Science / Heat equation / Method of undetermined coefficients / Physics / Quantum mechanics / Perturbation theory

Ph125c lecture notes, Time-dependent perturbation theory Say we have a time-dependent Hamiltonian H t  H 0  W t  . There will not generally be stationary states for the corresponding Schrödinger Equation

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Source URL: www.its.caltech.edu

Language: English - Date: 2001-04-10 14:52:57
68Partial differential equations / Fluid dynamics / Water waves / Icelandic language / Thorn / Wave equation / Korteweg–de Vries equation / Dispersion / Wave / Calculus / Mathematical analysis / Wave mechanics

Exact solutions of unsteady Korteweg-de Vries and time regularized long wave equations

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Source URL: www.springerplus.com

Language: English
69Density functional theory / Quantum mechanics / Partial differential equations / Equations / Time-dependent density functional theory / Schrödinger equation / Dirac delta function / Relaxation / Runge–Gross theorem / Physics / Chemistry / Mathematical analysis

Time-dependent density functional theory for quantum transport Yanho Kwok, Yu Zhang, and GuanHua Chen∗ Department of Chemistry, The University of Hong Kong (Dated: March 22, 2013) Throughout the last few decades, the r

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Source URL: yangtze.hku.hk

Language: English - Date: 2015-04-22 02:27:57
70Depth of field / Circle of confusion / Rendering / Partial differential equation / Computer graphics / Pinhole camera model / Miniature faking / Optics / Science of photography / Geometrical optics

Real-time, Accurate Depth of Field using Anisotropic Diffusion and Programmable Graphics Cards Marcelo Bertalm´ıo and Pere Fort Departament de Tecnologia Universitat Pompeu Fabra Abstract

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Source URL: www.klayge.org

Language: English - Date: 2012-07-23 02:34:51
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