... 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 ? ...

Arecibo Observatory . ... All participants will take part in a Hands-on Project at the single-dish school. Mentored by a member of the NAIC or NRAO staff, each of you will join a team of 3 or 4 participants to perform a short pre-planned research-style observation. ... Hence, while summer clothing is appropriate, a light sweater may be needed for the evenings, and also in the air-conditioned rooms, lecture theater and control room of the Observatory. ...

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

... Space flight . Crew training . ... The principle of the existing reliability level of space engineering, and first of all, of rocket-launchers is laid into the milestone of the cosmonauts training (the successful launch of "Soyuz" space vehicle is close to 1, but it is less than 1), that causes a possible landing of space crews outside the regular landing site. ... However, search operations can be hampered by difficult meteorological and geographical conditions in the region of emergency landing. ...

... After hearing and discussing Rocket-Space Corporation Energy General Designer U.P.Semevov's report on the fulfilling the flight program of the orbital complex Mir and proposals on its further exploitation, the Council draws attention to: . ... According to the Russian Government Resolution No. 76 of January 21, 1999 a large amount of work to find and attract Russian and foreign investments to provide the further exploitation of the orbital station Mir was carried out. ...

Symbolic circuit-matrix processor and evaluator . ... This software is reliable over the range of benchmark circuit complexity (both *.CIR and *.MAT file). ... SYMBOL is a symbolic-algebra package which in contrast to REDUCE, MACSYMA, MAPLE, MATHEMATICA, MathLAB, MathCAD and other known multi-purpose systems is especially intended for analysis of any lumped, linear, time-invariant circuit. ... pure ASCII text . ... CIRSYM - SYMbolic CIRcuit processor used to format ASCII text file *.out for CALCSYM. ...

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. ...

... Credit: T. Puckett ( Puckett Observatory ) Explanation: This enhanced composite image detailing structure in the coma and dust tail of Hale-Bopp was recorded May 5 - one day before the comet's passage from north to south across the plane of Earth's orbit . ... The comet's interaction with the changing equatorial solar wind and magnetic field during this crossing is expected to produce distortions and disconnections of Hale-Bopp's ion tail . ... Publications with keywords: Comet Hale-Bopp . ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

... July 2-3, Saturday-Sunday . ... July 4, Monday . ... Breakfast . ... Lunch . ... Visit to Bauman University museum and Research and academic Center "Photonics and infrared technology" . ... Dinner . ... July 5, Tuesday . ... Visit to R enterprise "Zvezda" . ... Introduction to team project . ... July 6, Wednesday . ... Visit to Mission Control Center (Korolev) . ... Cultural program: Theater . July 7, Thursday . ... Visit to Russian Space Research Institute . ... Team project . ...

... Technique of supervision of solar atmosphere active formations with the Multichannel Flare Spectrograph. Consider in details now a method of observations of fast processes in solar chromosphere with Multichannel Flare Spectrograph (MFS) installed in Ondrejov Observatory (Czech Republic). ... The working spectral range lies between IR CaII 8542 A and K CaII 3870 A. To observe solar image on the spectrograph's slit a lens, narrow-band H-alpha filter (4) ("Daystar") and CCD-chamber are used. ...

... See Deirdre's sketch on APOD . ... Between finishing the Venus vanishing sketch and the reemergence of Venus I put as much lunar detail as possible in the time and under the conditions as I could.