... The Russian Federation State Program "Physics of Condenced Matter", the "Superconductivity" division , Project code "Generation-2" . ... The multielement josephson structures are known to allow implementation of the unique properties of the Josephson junctions as electromagnetic waves sources with high change rate of generation frequency, working in the millimeter and submillimeter wavelength diapasones. ... Even the optimal type of the junction electrodynamic interconnection isn't chosen. ...

... Monitoring of the development of the on-board 92-cm   receiver (R-SRT-92 cm) ongoing at the KB GORIZONT in Nizhnii Novgorod: . ... OHCFS-SRT      Space Radio Telescope On-board Heterodyne and Clock Frequency   Synthesizer set . OHFS-SRT        Space Radio Telescope On-board Hydrogen Frequency Standard . ORFS-SRT        Space Radio Telescope On-board Rubidium Frequency Standard Service Module, . ... SRT                  Space Radio Telescope (all scientific payload including 10-m dish) . ...

... multiple records containing an ascii data record header followed by 100 ipps of binary (short) data. ... The data taking program has two input buffers (100 ipps each). ... The power program and clp programs have different transmitter samples: . ... To automatically differentiate between power and clp ipps, the rms was computed (using the I sample) for tx samples 1000 thru 1500. ... The clp ipps had tx samples (so the rms would be large) while the power ipp was blanked (so the rms should be small). ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . ... Parkes radio telescope . Australia Telescope Compact Array . ... 3mm Home Page System Performance Calibration Observing Quick Start System Specs mmATCA Receivers mmATCA Results . The new millimetre receivers system installed on the Australia Telescope Compact Array make use of Monolithic Microwave Integrated Circuit (MMIC) amplifiers. ...

... Ham packet radio system including: . ... control computer RSC 2. dedicated software monitoring generation of probing pulses in onboard transceiver in radio beacon mode; . ground receiving network of ham radio packet communication to record probing pulses of onboard radio beacon; . ... Generation of onboard radio beacon probing pulses as time marks to ground receiving network (including ham radio receivers of USW) and transmission of the measurement results throughout Internet network. ...

... Science . ... Science Users Information > Science Activities > APEX Science Verification > SHFI . ... Observing Facilities . ... Observing with ESO Telescopes . ... Telescope Time Allocation . ... ESO Data . ... The Science Verification (SV) observations of the APEX Swedish Heterodyne Facility Instrument were observed in March 2008. ... A selection of the APEX-1 proposals listed below have been observed during the week of joint SV observations in March 2008, and later during the ESO time of period...

... a file that contains codes which are not part of the ASCII character set . ... Recipients cannot see who else has received the message: hence the term "blind". this term derives from `bootstrap loader', a short program that was read in from cards or paper tape, or toggled in from the front panel switches. ... a temporary area of memory which data can be read from and written to. a unit of memory or data consisting of 8 bits which is used to represent one character. ...

The XPA source code directory contains two test programs, stest.c , and ctest.c that can serve as examples for writing XPA servers and clients, respectively. ... The stest program can be executed with no arguments to start an XPA server that contains the access points: xpa, xpa1, c_xpa (containing sub-commands cmd1 and cmd2), and i_xpa. ... xpaset xpa # send to xpa cat xpa.c | xpaset "xpa*" # send to xpa and xpa1 xpaget xpa # receive from xpa xpaget xpa* # receive from xpa and xpa1 etc. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Receiving systems . The SSRT has two independent receiving systems for recording solar observational data, and several ancillary receivers for checking, setting up and adjusting the instrument. The base receiving systen is a multichannel filter receiver for a simultaneous recording in 180 channels with the 500 kHz band each, adjusted at steps of about 600 kHz. ... Channel's band . ...

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. ...

... 8, ``Celestial Mechanics'', 2002 First results of GPS orbit determination with GRAPE package using a square--root information filter M. O. Keshin Institute of Applied Astronomy, St. Petersburg, Russia The zero--differenced carrier phase measurements contain the distance be­ tween the phase centres of receiver and transmitter antennas biased by unknown integer number of cycles (phase ambiguities). ... In the case of GPS the problem of solar radiation pressure modelling is of primary importance. ...

The information path to prepare, perform and reduce a radioastronomical observation, using the Arcos correlator , is schematized in the figure: . The programs reside part on the computer network of the Arcetri Observatory, and part at the Medicina Radio Telescope . All programs running at Arcetri are written for a Sun workstation, and are public domain software, available upon request. Programs running at the telescope are written for a PC with DOS/Windows (or Linux).

In the PROJECT we are using the following peculiar . features of RATAN-600 . ... Brightness temperature sensitivity being equal to the antenna temperature sensitivity .. ... Receiver system .. ... Using aperture averaging effect. dual- beam and dual (multi-) frequency filtration, we demonstrated full filtration of the atmosphere noise down to the receiver noise at all scales of acoustics peaks ( Fig.1 , Fig 2 ). ... We select this frequency as the central one in our project. ... Antenna surface . ...

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

Radio Interferometry Principles . Radio Interferometry Signal Processing . ... A radio interferometer consists of a pair of directional antennas that are tuned to receive radio emissions from a source in a desired RF band. ... The antennas are pointed at the radio source of interest and are set up to receive the signal and process it into a form suitable for transmission to the correlator. ... In connected element interferometry, the digital signal goes directly to the correlator. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Antenna system . ... The Irkutsk incoherent scatter radar is one of the world's nine active radars which give the opportunity to investigate ionosphere by the incoherent scatter method. ... Antenna gain coefficient . ... Antenna . ... Two antennas . ... To get an idea what station "Dnepr" antenna system looks like, let us consider some of the radar views which are given by the photographs General view and Side view . ...

... It also sends commands to the trolley micro to switch between track mode and slew mode. ... Laser head (7702) Linear interferometer (7002) Retroreflector(7003) Various mirrors Beam expanders Fibre optic pickup Measurement board(2002) Datum switch(Sony SETP151) A schematic layout is shown below in Fig 1 Optical fibres connect the receiver to the measurement board and from the laser to the reference input on the measurement board. ... Reset the datum latch circuit. ...

National Aeronautics and Space Administration . Lyndon B. Johnson Space Center . ... William A. Anders (Major General, USAF Reserve, Ret.) NASA Astronaut (former) . ... EDUCATION: Received a bachelor of science degree from the United States Naval Academy in 1955 and a master of science degree in Nuclear Engineering from the Air Force Institute of Technology at Wright-Patterson Air Force Base, Ohio, in 1962. ...

Next: Important parts of the Up: Overview of a Linux Previous: Overview of a Linux . A UNIX operating system consists of a kernel and some system programs . ... The system programs use the tools provided by the kernel to implement the various services required from an operating system. ... An operating system can also contain compilers and their corresponding libraries (GCC and the C library in particular under Linux), although not all programming languages need be part of the operating system. ...

Suzanne Gurton, the Education Manager at the Astronomical Society of the Pacific (ASP), has received the 2008 Professional Award, given each year by the Astronomical Association of Northern California to an astronomer who has done outstanding work in distinguishing and fostering amateur astronomy. ... She has spearheaded several major national educational initiatives that benefit the amateur and educational communities in astronomy . ...