The Olympiad participants are not supposed to study at any institutions of higher education (university or school which can be considered technical colleges). ... Only students did not participated at the IAO or APAO of the current educating year may participate in SiberiaOpen (that is, during an educating year - since autumn till spring - a student may participate in IAO or in APAO or in "Siberia Open", not in any two of these Olympiads). ... m - those who finish school later than in 3 years; . ...

Hide Zen home . ... PostgreSQL: the best DBMS solution for astronomy and astrophysics. We consider PostgreSQL, an open-source RDBMS distributed under BSD license, as one of the best database solutions for astronomical and astrophysical tasks. ... We present two backend programming modules. pgSphere, the ready-for-use contribution module for PostgreSQL, offers the capability for dealing with geometric objects in spherical coordinates. ... Zen, 2003-2007 ...

... SSAU History . SSAU roadmap . ... Engineers of SSAU laboratory of additive technologies started to carry out experiments in the field of 3D-printing of metal parts, components and assemblies. The research of Samara scientists will allow producing highly complex and non-standard elements of spatial forms required for design and creation of advanced aviation and space technology. ... SSAU Laboratory of Additive Technologies is established in 2011. ... e-mail: ssau@ssau.ru . ...

THE 75th NAME-LIST OF VARIABLE STARS. ... The 75th Name-List consists of two tables. ... the literature, taken from positional catalogues, including USNO A1.0/A2.0 and GSC, or determined by the authors); the range of variability (sometimes the column Min gives, in parentheses, the amplitude of light variation; the symbol ( means that the star , in minimum light, becomes fainter, than the magnitude indicated); and the system of magnitudes used ( P are photographic ...

... In an ideal magnetized plasma, a steady bulk flow with velocity v requires the existence of an electric field E, satisfying the "ideal magnetohydrodynamic (MHD) condition" [e.g. Walen, 1946; Alfven, 1950] . ... It is a property of (1) that "particles move with field lines", i.e. any group of ions or electrons sharing a field line at one time continues doing so ever after, and a "moving field line" in what follows will mean a moving string of plasma particles, threaded by a common field line. ...

... Recent Topics . ... MAO main . ... IVSmail] GMVA: Call for Proposals . ... Кому: This email address is being protected from spambots. You need JavaScript enabled to view it. ... You need JavaScript enabled to view it. , "leon tavares" , This email address is being protected from spambots. ... You need JavaScript enabled to view it. , "f colomer" , "pablo devicente" , This email address is being protected from spambots. ... Тема: [IVSmail] GMVA: Call for Proposals (including ALMA) . ... MAO NASU . ...

Improved S-approximation for dielectric particles ? ... As for the extinction eфciency of dielectric spherical particles, the improved version of the S-approximation fairly well describes the behaviour of Mie curves for particles with the refractive indices up to 2.0 or more and may be useful in order to get in the analytical form the \smoothed" Mie curves when the ripple-type uctuations were averaged. ... Actually, the S-approximation restores the averaged curves of the Mie theory 15 Fig. ...