... Such particles are called ``optically soft'', and the corresponding approximation could be named that of optically soft particles. ... For the theory based on the assumption (1), there are a set of the names: Rayleigh-Gans [ 11 ], Rayleigh-Debye [ 274 , 397 ], Rayleigh-Gans-Born [ 474 ], Rayleigh-Gans-Debye [ 78 , 144 , 409 , 410 ], Rayleigh-Gans-Rokard [ 132 ], Rayleigh-Debye-Gans (RDG) [ 100 , 462 ], Born (or the first Born) [ 56 , 135 ] approximation. ...

Next: Results of calculations Up: Initial conditions Previous: Initial velocity . We consider motion of the stars in the Galaxy with a model axially symmetrical potential which becomes quasi-spherical at large distances from the galactic center and gives rise to the observed galactic rotation curve. As an example we have taken the galactic potential as in Paczynsky (1990) paper. The potential consists of two disk components corresponding to the galactic disc and the buldge . ...

Describes how spatial region boundaries are handled. The golden rule for spatial region filtering was first enunciated by Leon VanSpeybroeck in 1986: . ... With this in mind, the rules for determining whether a boundary image pixel or table row are assigned to a region are defined below. For image filtering, pixels whose center is inside the boundary are included. ... That is, an row is inside the boundary without regard to its integerized pixel value. ...

There are many ordinary/partial differential equations/systems describing various phenomena in physics, mechanics, chemistry, biology, sociology, etc. ... Prerequisites: 1 semester "Advanced Calculus", 1 semester "Linear Algebra". Optional: 2 semester "Advanced Calculus", 2 semester "Linear Algebra", 1 semester "Functions of Complex Variables", elements of the functional analysis and the ordinary differential equations theory. ... Laplace transform for linear differential equations . ...

Intensity of atmospheric motions in the mabl retrieved from ocean surface radar imagery M. Mityagina E-mail: mityag@iki.rssi.ru Abstract. The paper is dedicated to the theory and practice of analysis of radar images of sea surface, obtained under unstable atmospheres. In this case, the sea surface reveals wind field variations in the marine atmospheric boundary layer (MABL) caused by atmospheric convec-tive processes, accompanied by air motions with mainly vertical direction. ...

... Another significant contribution to the crystal energy of metals is the electron-ion interaction or the electron bandstructure energy (E BS ) which is defined by the interaction of valence electrons and the Brillouin zone (BZ) planes. ... The program BRIZ has been developed for 3D visualization of Brillouin zone configurations and intersections of BZ planes with a Fermi sphere[4]. ... 1.75 (electrons/atom). ... 4] Degtyareva V.F., Smirnova I.S.: BRIZ: a vizualization program for Brillouin zone ? ...

... ARC 3.5m | Weather Closure Conditions . The enclosure will be closed by the Observing Specialist under the following conditions. ... This policy will be consulted whenever there are questions or disagreements concerning closure of the APO 3.5-meter telescope due to hazardous conditions or situations, at times when telescope operations are being overseen by an APO Observing Specialist. ... the on-duty Observing Specialist has full responsibility, and sole authority, to make this decision. ...

To order one of the possible additional functions use list box at the top left of the Select elements dialog box. ... On each element El in this column one can impose selection conditions of the types . ... El >= B AND El <= C. If B > C, then selection will contain all minor planets with element El complying with disjunction of conditions: . ... If conditions are imposed on several elements, then selection contains only those minor planets, which satisfy all requirements. ...

Next: Example of Deconvolution: Up: Interactive Deconvolution with Error Previous: Introduction . ... To a first approximation, the experimental data are related to the original object , the intensity of the source at some high level of resolution, by an experimental transfer relation: where is the Point Spread Function. ... The choice of its diameter is of fundamental importance because it is closely related to the resolution limit of the reconstruction process. ...

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Next: Identification and Analysis of Binary Star Systems using Probability Theory . ... We present a computing code for modelling energy flux distributions, photometric indices and spectral line profiles of (non-)radially pulsating Main-Sequence stars. ... In the case of slowly rotating stars one can use the zero-rotation approximation to describe stellar pulsations. Such a model was used already by Cugier, Dziembowski & Pamyatnykh (1994) to study nonadiabatic observables of Cephei stars. ...

... Assured of a reliable method of solving the normal equations, we now consider the equations of condition. The observed magnitude m of a star at M air masses with true instrumental magnitude is modelled as ([ 10 ], [ 28 ]) . ... The effective extinction coefficient depends on the effective spectral gradient [ 29 ] of the star, for which we use some color index, affected by half the atmospheric reddening ([ 26 ], [ 10 ]): . ... Thus, for the B band of UBV, we use the (U-V) color. ...

... Directives | ... Apache HTTP Server Version 2.4 . Apache > HTTP Server > Documentation > Version 2.4 > Rewrite . ... This document discusses some of the technical details of mod_rewrite and URL matching. ... Then the URL rewriting engine is started with the contained ruleset (one or more rules together with their conditions). ... If the Pattern matches, mod_rewrite looks for corresponding rule conditions (RewriteCond directives, appearing immediately above the RewriteRule in the configuration). ...

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

Text of report The subject if our report is the influence of the structure and physics of the uppermost superadaibatic layers on the oscillational spectrum of p-modes. ... In our report we will try to use a most simple representation of the spectrum, plotting the differences between theoretical (that is models') and observational frequencies against a frequency. ... It allow us to focused on the effects of the uppermost layers and ignore possible sophistications from effect of more deeper layers. ...

... Mokhovaya st., 11, Moscow, 103907, Russia. ... Proceedings of the 6th IEEE International Specialist Workshop on Nonlinear Dynamics of Electronic Systems, Budapest, Hungary, 16-18 July, 1998 , pp. ... The method for synchronization of drive-response systems on conditions of a large mismatch of parameters is considered on example of the system based on modified Chua's circuit. The approach to information transmission using such method is proposed. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Parkes | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Previous Section: APPENDIX A. The composite . ...

... DEPENDENCE OF ORDINARY WAVE ANOMALOUS ABSORPTION ON THE SOUNDING PROBLEM PARAMETERS . ... Transformation of electromagnetic wave into plasma waves plays an important role in different processes taking place in ionospheric plasma. ... According to modern point of view transformation of ordinary wave into plasma waves plays an important role in small-scale random irregularities generation when ionospheric plasma is heated by power radio wave [1,2]. ... Anomalous attenuation. ...

Do we need various assumptions to get a good FCN? A new multiple layer spectral method Cheng-li HuangMian Zhang Shanghai Astron. ... No FCN ! ... FCN,FCN,FCN.. Multiple layer spectral method (MLSM) + Linear Operator Method (LOM) Finite Element Method (FEM) · · Traditional approach solves one order ellipsoid only. ... Main Idea of FEM Boundary Surface could be described as: Let's consider how to solve the dynamic equation: Traditional Approach: Equivalent Spherical Domain . ...

Simple Waves Reference: Landau & Lifshitz, Fluid Mechanics 1 Nonlinear waves 1.1 Small amplitude waves When we considered sound waves we considered small amplitude perturbations to the fluid equations. In 1D 2 1 2 ------------ ­ ----- ------------ = 0 2 x 2 cs t 2 (1) Astrophysical Gas Dynamics: Simple Waves 1/33 The solution to this equation, of course, is: = f 1 x ­ c s t + f 2 x + c s t (2) where f 1 and f 2 are arbitrary functions. ... Astrophysical Gas Dynamics: Simple Waves 14/33 NB. ...