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... Generalized maximum entropy method and its application to antenna pattern reconstruction. In this paper the Generalized maximum entropy method and its application to the reconstruction of two-dimensional complex functions (namely, far-field antenna pattern distribution) from nonuniformly distributed samples are considered. ... It is shown that the Generalized maximum entropy method is sufficiently stable in the presence of errors. ...

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• Annotation_26
• Annotation_40

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... The procedure of radiometer signal integration can be considered as a sort of reducing dimension of the initial sampling space, where the samples are the result of analog-to-digital conversion. ... The probability distribution of the signal and spikes is completely known. ... The quality of the considered algorithm could be also illustrated by Figure 2 . ... One could see the considered adaptive algorithm is preferable even by low degree of compression, because all spikes have been depressed. ...

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• Integer Functions, Random Number, String Conversion, Searching and Sorting:
• Character Classification and Conversion
• Data Conversion

Chair of solid state physics . ... The Physics of Phonons . ... In the first part of the course “The Physics of Phonons” the dynamics of atoms in one- and three- dimensional crystalline lattices is considered in detail. The quasiparticle conception in solids, taking phonons as an example, is discussed; creation and annihilation operators of phonons, main properties of acoustic and optical phonons dispersion laws, density of phonon states. ... Crystalline state. ... Acoustic and optical phonons. ...

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... The International Conference "Mode Conversion, Coherent Structures and Turbulence" will be held in the Space Research Institute of RAS during the period from 23 up to 25 November 2009. ... The international conference MSS-09 is organized by Space Research Institute with participation of the Russian Academy of Sciences, the Dynasty Foundation, the Russian foundation of fundamental researches, the European Geosciences Union, the Education and the Scientific Council on Nonlinear Dynamics of RAS. ...

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• AZ Key parameters, 1998
• AZ key parameters, 1996
• AZ Key parameters, 1997

... HST . ... Data . ... HST Overview . Overview . ... Retrieving HST Data . ... This FORM is a quick tool for flux conversion between diverse unit systems. ... INPUT FLUX or MAGNITUDE UNITS CLEAR Jy W/m2/Hz W/m2/um W/cm2/um erg/cm2/s/Hz erg/cm2/s/A photons/m2/w/um photons/cm2/s/A AB magnitude magnitude V magnitude U magnitude B magnitude R magnitude I magnitude J magnitude H magnitude K magnitude L magnitude L1 magnitude M magnitude N magnitude Q . ... Enter the Input Flux or Magnitude Value : . ...

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• Charge Injection (CI) in the WFC3 UVIS Detector
• The CO-to-H2 Conversion Factor from Infrared Dust Emission across the Local
• The CO-to-H2 Conversion Factor and Dust-to-gas Ratio on Kiloparsec Scales in

... Model of ejection of matter from dense stellar cluster and chaotic motion of gravitating shells . The motion with intersections of relativistic gravitating shells in the Schwarzschild gravitational field of a central body is considered. ... Such special casesas the Newtonian approximation, intersections of light shells, and intersections of a test shell with a gravitating shell are also considered.The ejection of one of the shells to infinity in the relativistic region is described. ...

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Blackholes2 Forum Message . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Post . ... Could This Be Considered The .. ... Post Message | ... www.astronomy.net . About Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• I Think What You're Saying Is Not A Deeply-considered Position - an Astronomy
• Re: Catalog Conversion Utility - an Astronomy Net XEphem Forum Message
• Conversion Of A Vintage 7x50 Binocular To A 18x90 Binocular - an Astronomy Net

... Future seminars . P a s t seminars . Seminar council . Interaction of radiation with heterogeneous surroundings " . ... Erokhin (IKI) . ...

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• mode conversion
• I. Трансформация волн (Mode conversion)
• Substorm Event On November 24, 1996

... To convert measurements in Kelvin to Jy (and vice versa) the global function convert_flux is needed. ... The function knows the basic parameters for some frequencies and telescopes, but the user may need to supply the aperture efficiency, telescope diameter or the Jy/K factor. ASAP> scans.convert_flux # If efficency known ASAP> scans.convert_flux(eta=0.48) # If telescope diameter known ASAP> scans.convert_flux(eta=0.48,d=35) # Unknown telescope ASAP> scans.convert_flux(jypk=15) # Alternative . ...

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• casacore: casa::Conversion Class Reference
• Australia Telescope National Facility
• Plotter Annotations

... The simplest way to convert PostScript files into PDF on our Linux machines is to use the ps2pdf command, e.g. ps2pdf file.ps file.pdf . ... If all original files contain only one page then the resulting PDF document would have have one page for each file. ... Step: Add a pdfmark operator in the set-up section so that the list of bookmarks in the resulting PDF document is visible on the left hand side when the file is opened: . ... where bookmark_file is an ASCII file containing the pdfmark...

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• Date conversion functions
• ASCII Character Chart with Decimal, Binary and Hexadecimal Conversions
• The Quiet Explosion (annotated)

... stars . ... Could gas giants be considered stars that failed to ignite? ... The distinction between gas giant planets and brown dwarfs ("failed stars") is a vague one. ... It depends on what gas giant youт??re looking at and how you distinguish a т??planetт?? from a т??failed star.т?? A gas giant found in orbit around a star might be considered a planet like Jupiter around the Sun. An isolated gas giant is probably a failed star. ... Get instant access to subscriber content on Astronomy.com! ...

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Teaching courses . for student of the Department of Astrophysics and Stellar Astronomy . ... Geophysics and physics of the planets (Kurt, Panteleev) . ... Close Binary Stars . ... Solar Physics . ... This is introductory course for students of the third year of education which are familiar with elementary astronomy and general physics. ... The one-year course includes theory of radiation transfer, theory of internal stellar structure with account of binary systems with compact comapnions. ...

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The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

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• Linear polarization: wavelength dependence
• Circular polarization: change of sign
• Polar-Ring Galaxies

... The FITS conversion commands INTAPE and OUTTAPE can both access FITS files on disk or directly on tape devices. Thus, it is in principle possible to use general system utilities to transfer the FITS files between disk and tape. ... In order to save disk space, it may be desirable to compress the files. ... Use OUTTAPE to write file to disk in FITS format. Compress FITS file on disk e.g. compress . Use system utility to save compressed file on tape e.g. tar . ... File naming . ...

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• Format conversion
• HyperLEDA documentation: parameter: objname
• Combining Dark Frames

Irregular phenomena in the Earth Pole oscillation process and temporal variations of geopotential Valery Bondarenko, Vadim Perepelkin s The observed irregular phenomena in the Earth Pole oscillation process are very variety. ... These phenomena indicated in the IERS data are the "abnormal" fluctuation of the Earth Pole coordinates which owing to changing of the geodynamical parameters gives negative result in interpolation and forecast of the first approximation mathematical model. ... Fig. ...

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• http://www.gao.spb.ru/english/personal/malkin/publ/zm13r.pdf
• http://www.gao.spb.ru/english/as/j2014/presentations/tercjak.pdf
• http://www.gao.spb.ru/english/personal/malkin/publ/zm08g.pdf

Next: Image with sky grid Up: Celestial Coordinates from Image Previous: *skypix* conversion . ... logical . raw pixel coordinates of current image or image section . ... pixel coordinates of original image from which current image was derived ( logical if no blocking or sectioning have been performed) . ... sky coordinates . ... pixel coordinates on the tv ( SAOimage ) display. These will logical if an image section is specified as input to the display task. rsdc@cfa.harvard.edu . ...

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• *skypix* -- conversion of pixel position to sky coordinates
• An Annotated Quasar SED
• Tweets from the 218th meeting of the AAS

... It has been largely superceded by MatWeb . Conversion Factors . Material properties . Physical constants . Astronomical constants . This table gives conversion factors to convert various units to their SI equivalents. ... The units are SI. This is a short list of physical constants in SI units. ... Boltzmann constant . ... Gas constant . ... Mass . ... Plank's . ... Radiation constant . ... This is a short list of astronomical constants in SI units. ... Sun . ...

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• lsst.coordConv: coordConv: Astronomical Coordinate Conversions
• Conversion Factors
• Astrophysical Research Consortium - Apache Point Observatory

... We study ergodic properties of random maps defined as collections of nonsingular maps $f_1,\dots,f_w$ from a compact metric space $(X,\rho)$ into itself taken with probabilities $p_1,\dots,p_w$ ($\sum_i^wp_i=1$) and considered as Markov processes on $X$. ... In the first situation, when the random map is expanding on average, we mainly follow ideas borrowed from the theory of piecewise expanding maps and the corresponding Banach space is a version of the space of functions of bounded variation on $X...

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• Equations of Mathematical Physics
• Conference Global Fields
• Basic Representation Theory (spring 2002)