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1. East Siberian Center for the Earth's Ionosphere Research. SW radiosignal
Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The algorithm and appropriate program for decametric radiosignal propagation conditions prediction for paths from 500 to 9000 km have been developed at ISTP SB on the basis of normal wave method (AltyntsevaB.I,Iliyin N.V., Kurkin V.I. and others //Decameters channel simulation on the base of normal wave method . ... Solar activity indices are chosen automatically from the prediction date from the database . ...
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Ссылки http://rp.iszf.irk.ru/esceir/lchmen/predicten.htm -- 8.0 Кб -- 02.06.2001
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2. Bojan Nikolic -- Calculating dispersive path delay due to the atmosphere
... Bojan Nikolic web pages home . ... I've posted a simple command-line program to compute the dispersive path delay due to the atmosphere using ATM (more precisely my re-packaging AATM). ... I had not appreciated that even at 330GHz, the dispersive wet delay is about 10% of the non-dispersive wet delay. Please enable JavaScript to view the comments powered by Disqus. blog comments powered by Disqus . Copyright 2012, Bojan Nikolic feedback welcome ...
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Ссылки http://www.mrao.cam.ac.uk/~bn204/blog/2008/12/calculating-dispersive-path-delay-due.html -- 4.3 Кб -- 22.11.2012
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3. Determination of atmospheric parameters and calculation of chemical composition
... We cannot use for this purpose equivalent widths and profiles of HI lines (well known criteria of atmospheric conditions for normal supergiants), since these lines are strongly distorted in the spectrum of IRAS04296 as seen in Fig. ... Figure: Upper: iron abundance FeI (circles) and FeII (crosses) calculated for IRAS04296+3429 with model parameters , and using lines with different excitation potentials EP of a low level; bottom: the same as a function of the equivalent width W . ...
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Ссылки http://mavr.sao.ru/hq/ssl/IRAS04296/node7.html -- 28.8 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/ssl/IRAS04296/node7.html -- 28.8 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/ssl/IRAS04296/node7.html -- 28.8 Кб -- 01.10.2012
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[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/ssl/IRAS04296/node7.html -- 28.8 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/ssl/IRAS04296/node7.html -- 28.8 Кб -- 01.10.2012
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4. Prediction technique
Geomagnetic storms and substorms are a natural hazard similar to hurricanes, floods etc. ... Solar and geomagnetic activity also probably influences the Earth's climate and human health. ... Under southward directed IMF the Earth's magnetosphere is open to input from the solar wind flow. ... Since practical importance of solar wind measurements was recognized, a number of approaches was developed for prediction of the geomagnetic activity basing on the solar wind data. ...
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Ссылки http://www.iki.rssi.ru/apetruko/forecast/epsilon.html -- 7.5 Кб -- 27.01.2000
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/forecast/epsilon.html -- 7.5 Кб -- 27.01.2000
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[ Сохраненная копия ] Ссылки http://www.cosmos.ru/forecast/epsilon.html -- 7.5 Кб -- 27.01.2000
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5. sfit help file
... While Sfit accepts input from "stdio", it is more natural to save/edit commands in a file (eg "solve_input.sfit") and run the code simply by entering > Sfit solve_input.sfit [linelist] . ... The model grid (3.4MB) produced by Example 1 and a selection of input spectra ( f008 f036 f068 f304 f354 ), together with SFIT output files are also given in this folder . ... The model grid (2.8MB) produced by Example 3 and an input spectrum together with SFIT output files are also given in this folder . ...
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Ссылки http://star.arm.ac.uk/~csj/software_store/guide/sfit.html -- 10.2 Кб -- 03.07.2008
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6. Approach for Calculating an Analytical PSF
... Since image restoration algorithms are highly sensitive to the accuracy of the calculated PSF, a significant portion of our research effort is devoted to accurately modeling the PSF which is a highly non-linear problem. Our approach is based on analytical modeling of the wavefront phase using Zernike polynomials. ... In the Fourier domain, we scale the phase map by an observed PSF to more accurately account for the HST/FOC combination. ... The final result is an improved estimate of the phase map. ...
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Ссылки http://www.stsci.edu/stsci/meetings/irw/proceedings/poovendranr.dir/section3_2.html -- 4.5 Кб -- 18.04.1994
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7. Algorithm for calculations of the Voigt function
Algorithm for calculations of the Voigt function . ... алгоритма расчета профиля Фойгта ! ... функция Фойгта ! текст модуля на языке Паскаль (Delphi) для ее вычисления ! ... github.com...dawson.cpp процедура Хумличека для вычисления функции Фойгта ! ... Humlicek 1979 JQSRT v21 p309 ! ... 2005A+A___442___11F 2006 Tepper-Garcia, MNRAS, v369 p2025 ! 2006MNRAS_369_2025T 2007 Letchworth and Benner, JQSRT, v107 p173 ! ... 2009JQSRT_110__376A 2014 Abrarov and Quine, J. Math. ...
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Ссылки http://www.uafo.ru/msg/voigt.html -- 9.2 Кб -- 07.08.2015
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8. The contour method of calculating source region shape
... Meta Index / Home Page / Description / Specifying source region shapes . When radiusstyle =`contour', the task calculates the source region shape as an elliptical locus which approximates the contour of the PSF at a given flux value. ... Clearly, in order to calculate the shape of such a flux contour, it is necessary firstly to normalize the PSF to the source brightness and secondly to determine the flux level (in `brightness' units per pixel) at which to find the contour. ...
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Ссылки http://xmm.vilspa.esa.es/sas/7.1.0/doc/region/node8.html -- 9.0 Кб -- 09.07.2007
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9. The AstroStat Slog Blog Archive Differential Emission Measure [Eqn]
... Archives . ... Magnitude [Eqn] . ... Differential Emission Measures (DEMs) are a summary of the temperature structure of the outer atmospheres (aka coronae) of stars, and are usually derived from a select subset of line fluxes. ... is called the Differential Emission Measure and is a very useful summary of the temperature structure of stellar coronae. ... Tags: DEM , Differential Emission Measure , EotW , Equation , Equation of the Week , stellar coronae . ... Comment ( RSS ) | ... Chandra Blog . ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/2008/eotw-dem/index.html -- 24.3 Кб -- 01.03.2014
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10. Modern CCD Observations of Moving Celestial Objects: Algorithms and Software
... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/bykovo/ -- 12.3 Кб -- 16.07.1999
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11. http://www.gao.spb.ru/english/as/j2014/presentations/tsyba.pdf
National Research Institute for Physical-Technical and Radio Engineering Measurements IMPROVEMENT OF THE SOFTWARE BERNESE FOR CALCULATION OF THE EARTH ROTATION PARAMETERS ACCORDING TO THE DATA OF SATELLITE LASER RANGING (LAGEOS 1, LAGEOS 2) IN THE MAIN METROLOGICAL CENTRE OF THE STATE TIME AND FREQUENCY SERVICE Tsyba E. N., Kaufman M. B. 141570, Mendeleevo, Moscow region, Russia tel. +7-903-194-7575; tsyba_e_n@mail.ru ABSTRACT Preparatory ...
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Ссылки http://www.gao.spb.ru/english/as/j2014/presentations/tsyba.pdf -- 679.3 Кб -- 07.10.2014
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12. http://www.ipa.nw.ru/conference/2002/sovet/PS/KUDRYAV.PS
... 8, ``Celestial Mechanics'', 2002 An improved analytical technique for accurate calculation of satellite motion perturbations due to the Moon/Sun/planets S. M. Kudryavtsev Sternberg Astronomical Institute, Moscow, Russia An improved analytical technique for accurate calculation of satellite orbit perturbations caused by attraction of the third body (the Moon, the Sun, plan ets) is presented. ... As the perturbing bodies we considered the Moon, the Sun, Venus, Jupiter, Mars, and Saturn. ...
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Ссылки http://www.ipa.nw.ru/conference/2002/sovet/PS/KUDRYAV.PS -- 44.3 Кб -- 19.08.2002
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13. Details of the luminosity calculation
The radio luminosity formula (see Hogg D.W. ) is . where luminosity (bolometric) distance is . and K-correction is . Deceleration parameter is for Lambda = 0. The fitting curve is used for the luminosity calculation in the frequency range choosed. The Hubble constant , the deceleration parameter , the redshift of radio source , and the emission comoving frequency range can be choosed as parameters.
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Ссылки http://www.sao.ru/cats/~CLUSTERS/CLUSTERS/java/R_spectrum/help/lum_help.html -- 2.1 Кб -- 12.06.2001
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14. Normal star evolution
... We consider stars with a constant (solar) initial chemical composition. Before the Roche lobe overflow, the components evolve as single stars (see for details LPP96). ... If the mass transfer onto a normal star occurs on a time-scale ten time shorter than the thermal Kelvin-Helmholz time for this star or a compact star is engulfed by a giant companion (e.g. as a result of the kick), the common envelope (CE) stage of the binary evolution is set in (Paczynski 1976). ...
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Ссылки http://xray.sai.msu.ru/~polar/sceintro/poster/be_inwww/node3.html -- 3.9 Кб -- 21.06.1996
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15. Rotang - IDL procedure for calculating the optimum rotation angle for ALFA
AO Home AO Astronomy Robert Minchin Blog Publications IDL Routines . Rotang can either be run from the command line as described here or through the alfa_ang GUI . ... To run rotang at Arecibo: . Start IDL . ... Run Rotang: . rotang, Date , RA , Dec , Time , /choice . ... Rotang also calculates the Azimuth and Zenith Angle fir every source. If the Zenith Angle is greater than 20 degrees, then the program will return that the source is down and will not calculate an optimum ALFA angle. ...
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Ссылки http://www.naic.edu/~rminchin/idl/rotang.shtml -- 5.7 Кб -- 10.04.2016
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16. casacore: casa::Aberration Class Reference
... Classes . ... casa::Aberration . ... More... #include < Aberration.h > . ... Aberration (const Aberration &other) . ... operator() ( Double epoch) . ... Actual Aberration for a certain Epoch is calculated by the () operator as Aberration(epoch), with epoch Double MJD, values returned as an MVPosition . ... Double casa::Aberration::aval [3] [private] . ... Double casa::Aberration::checkEpoch [private] . ... Double casa::Aberration::dval [3] [private] . ... const Double casa::Aberration::INTV [static]...
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Ссылки http://www.atnf.csiro.au/computing/software/casacore/casacore-1.2.0/doc/html/classcasa_1_1Aberration.html -- 40.4 Кб -- 14.02.2011
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17. Theoretical Astrophysics
Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...
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Ссылки http://space.univ.kiev.ua/courses/teor_astroph_e.html -- 8.7 Кб -- 23.02.2005
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18. Long description of example of cell background calculation
This diagram shows the six superimposed "layers" of the CSS table model. This diagram illustrates the algorithm for calculating a cell's final background. ... The diagram shows how, looking down on the six rectangles, one may compute the background color of each cell. ... A cell without a background color in the top layer is depicted as a "window" onto the lower layers, which give its final background color. ...
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Ссылки http://crydee.sai.msu.ru/~vab/html.doc/css2/images/longdesc/tbl-layers-desc.html -- 2.3 Кб -- 02.05.1998
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19. FractalBoxCounter (ImageJ API)
... Class . ... FIELD | ... METHOD . DETAIL: FIELD | ... java.lang.Object ij.plugin.filter.FractalBoxCounter . ... PlugInFilter . ... Calculate the so-called "capacity" fractal dimension. ... This method should return a flag word that specifies the filters capabilities. ... ImageJ will lock the image before calling this method and unlock it when the filter is finished. For PlugInFilters specifying the NO_IMAGE_REQUIRED flag and not the DONE flag, run(ip) is called once with the argument null . ...
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Ссылки http://www.astro.louisville.edu/software/astroimagej/imagej/api/ij/plugin/filter/FractalBoxCounter.html -- 17.2 Кб -- 02.12.2010
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20. Cosmological Issues for Theorists
. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu
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Ссылки http://zebu.uoregon.edu/cosmo.html -- 6.5 Кб -- 19.04.1999
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Астронет | Научная сеть | ГАИШ МГУ | Поиск по МГУ | О проекте | Авторам
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