... We study in this paper the effect of shock excitation of leaky and surface modes by the p-polarized electromagnetic wave incident on the rapidly ionized gaseous or solid layer. ... For example, if [pic] (solid density, multiple ionized plasma), the basic frequency [pic], [pic], [pic] we find, that the wavelength of leaky wave [pic] is in soft x rays band. ... If [pic] (low density gaseous plasma), the basic frequency [pic], [pic], [pic] we find, that the wavelength of leaky wave [pic] is in THz band...

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. ...

... I tried reducing the field with five different model point-spread functions (PSFs): (1) a spatially invariant PSF derived from ten bright stars in the test image itself; (2) a quadratically varying PSF derived from the NGC 1850 frames discussed by Stetson (1994b); and (3) spatially invariant, (4) quadratically varying, and (5) cubically varying PSFs derived from grids of model profiles generated with Tiny TIM by Shaun M. Hughes. ...

Analysis of general features of the chaotic system behavior and investigation of the properties of concrete chaotic sources. ... Analysis of information properties of chaotic systems and chaotic oscillations as concrete objects for information processing and comunications. ... This hypothesis gives a possibility of designing simple mathematical structures accomplishing various processes of information processing using chaos. ... Activities | ... E-mail: chaos@mail.cplire.ru ...

... Up: Future Instruments and Telescopes, Tools . ... New Generation Astronomical Telescopes (NGAT), a class of telescopes designed to be operated remotely and robotically, require efficient methods for communicating images over heterogeneous and low-bandwidth data networks such as the Internet. ... Methods researched thus far involve the classification of astronomical images based on object parameterisation, progressive image transmission, and evaluation of existing image compression schemes. ...

... 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. ...

My research interests are focussed on the theory and modelling of accretion processes as well as star and planet formation mechanisms. I am particularly interested in the stability properties of accretion discs, the generation of MHD turbulence and associated angular momentum transport, disk - planet interactions and the origin and characteristics of jets and winds from accreting systems . ... These results have been published in Salmeron & Wardle, 2005, M.N.R.A.S., 361: 45-69. ...

... trous Up: The discrete wavelet Previous: Introduction . Multiresolution analysis [ 25 ] results from the embedded subsets generated by the interpolations at different scales. ... In order to restore the original data, Mallat uses the properties of orthogonal wavelets, but the theory has been generalized to a large class of filters [ 8 ] by introducing two other filters and named conjugated to h and g . ... Figure: The filter bank associated with the multiresolution analysis . ...

... Compressional Pc 5 ( ULF ) waves, found on the nightside close to the flanks of the magnetosphere , are the dominant pulsations occurring beyond L =8. ... Accordingly, the events are strongly associated with high beta plasma clouds and are much more likely to be observed near the equator than >10њ off the equator (see, e.g., Anderson, 1993). ... Azimuthally polarized toroidal Pc 5 pulsations are thought to be fundamental mode toroidal field line resonances (FLR) with magnetic node at the equator. ...

The general formulation of the problem of light scattering (diffraction) is rather simple. The field is incident on a scatterer of the volume , and creates the field inside the scatterer and an additional (diffraction) field outside it. ... Despite the simplicity of the scheme, a concrete solution of the problem essentially depends on the geometry of the scatterer and its structure. ...

... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Due to its low inland population density and low background radio signal levels, Australia has a number of superb sites for these telescopes. ... CSIRO-ATNF invites you to a one-day workshop to discuss the development of novel energy solutions for these distributed telescopes and welcomes short contributions to the workshop. ...

. Language [RU/EN] Search: . Home . UP . Research . Projects . Services . Info . News . Events . Personal . Archive . Ionosphere and radiowave propagation: structure . The main page . Information . Publications: . 2011 - 2015 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2000 - 2004 . 1995 - 1999 . Participation in International symposiums and conferences: . 2013 - 2015 . 2011 - 2012 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2002 - 2004 . N.V. Pushkov . 09/04/2016 23:52 MSK . webmaster@izmiran.ru .

... Proposed location of the new generation Russian VLBI network radio telescopes Kaliningrad St. Petersburg Zelenchukskaya (Zc) Badary (Bd) Ussurijsk Working frequency bands for the new generation Russian VLBI network S X Ka 2.2 2.6 7.0 9.5 27 33 F, GHz Data acquisition parameters 4 frequency bands : 512 MHz bandwidth x 2 polarisations or 1024 MHz bandwidth x 1 polarisation 2-bit sampling ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... Star Atlas . ... stars . ... Observing Podcasts . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... How do neutron stars generate steady magnetic fields? ... How can a neutron star exist if those neutrons are just going to pieces? Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...

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. ...

... The goal of this course is to teach some basic methodologies for analysing problems of control of partial differential equations. ... When dealing with controllability problems, one has to distinguish between finite-dimensional systems modelled by ordinary differential equations and infinite-dimensional distributed systems described by means of partial differential equations. Most of this course deal with problems related with partial differential equations. ...

... user-defined data file formats . ... better integration with a user's analysis routines To add such functionality to SAOimage, we developed the XPA Messaging System that allows X programs to define points of public access through which data and commands can be exchanged with external programs. ... We have utilized XPA to develop "SAOimage: The Next Generation" (SAOtng), an extensible image display service that can cooperate with other processes and programs. ... SAOtng help pages . ...

TOOLS OF TEST GENERATION FOR SATELLITES CONTROL PROGRAMS Andrey Tyugashev, Ekaterina Myasnikova, Elena Sopchenko S.P. Korolyov Samara State Aerospace University (National Reseach University) The paper presents a research in the field of test automation for testing spacecraft control programs. ... Programmers or designers of spacecraft systems write tests manually. ... Tests are carried out by issuing the control actions on the spacecraft and condition monitoring systems parameters of the spacecraft. ...

... The 2 air conditioners in the dome (18K Btu, 33K Btu) generated a comb with a 1 Mhz spacing. ... It as well as the old 33K Btu unit were fitted with an analog thermostat and the digital control was removed. ... Horizontal dashed lines have been drawn where the old Ac unit was turned on and off. ... The dashed red lines line up with the 1 Mhz comb when the old Ac is on. ... There is lots of rfi left in the band when the old Ac was off, but not of it looked like it was part of a 1 Mhz comb. ...