All stars derive their energy through the thermonuclear fusion of light elements in to heavy elements. High temperatures are required so that the mutual electrostatic repulsion of the protons in each fusing atomic nucleus is overcome. ... Elements with more protons in their nuclei require higher temperatures. ... This sequence is now shown in the animation below. ... First Step of the Proton-Proton Chain Narration . Second Step of the Proton-Proton Chain Narration . ...

WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Chapter 3: Choosing the Optimum HST Instrument > 3.3 Comparison of WFC3 with Other HST Imaging Instruments . ... 3.3.2 Field of View . ... Figure 3.1 illustrates the fields of view, at the same scale, for all of the HST imaging instruments currently available on HST . Figure 3.1: Schematic diagram comparing relative sizes of the fields of view for all available HST imaging instruments. ... WFC3/IR . ...

... Hardware Platform Hardware Platform IBM Cyclops System: · Very Dense Multi- Node HPC system · 3D grid configuration · Max size 24X24X24 nodes · Each node consisting of one multi-processor Cyclops chip · Each Cyclops Device contains 80 Dual Thread Unit Processing Elements, Dual ALU single FPMAC unit The Cyclops Processor Device Simplified Cyclops Diagram Cyclops Capabilities · 500 MHz system clock frequency · 80 GFLOPS peak ...

... Intro: beam reinforcement . ... positioning sequence, kips required for repair (.pdf) . ... dome . ... td12 . kips . ... 8.834 . ... loosen bolts at u2 on current beam, attach new beam to u2 via bolts (bolts remain loose) . ... az->315 deg, dome=8, ch=8.834 . ... pull on tiedowns till you have 48 kips in td4 (td12,4,8 distance=21.81,22.058,21.831) . move dome up till we have 64 kips in td 4 . ... kip (bad) . ... installing first beam. tensions,temp@9:45am. 16sep10 . ... tdPos:(21,19,22) . ...

... TBB: retain a few seconds of raw data Off-line follow-up Coherent dedisperse The Matched Filter Optimal detector for a known signal in known Gaussian noise Matches expected signal shape (template, h) to data (s), and sums Pros: optimal for a given Gaussian dataset Cons: requires full signal knowledge , not blind to signal shape Performance : signal -to-noise ratios Template matched to ...

Next: Public Understanding of Science, Up: Technical Research Summaries Previous: New Approaches to Risk . ... Michael Smith has been analysing new infrared data collected from 11 PPN and PN by Chris Davis (Joint Astronomy Centre, Hawaii) to search for clues as to how the objects evolve. ... Georgi Pavlovski studied the properties of supersonic turbulence in molecular clouds and its effect on the molecular cloud properties and their chemical evolution. ...

Radiotekhnika i elektronika, 1998, vol. ... Transmission of Chaotic Sample Sequences Through RF Channel . ... Received January 29, 1998 . ... The following set of operations is proposed for this purpose: transformation of the chaotic sample sequence into a sequence of AM pulses, modulation of high-frequency carrier by this signal, filtering out the high-frequency signal, demodulating it into a sequence of pulses, and retrieving estimates of the sequence of the chaotic samples. ...

... Up: VO Resources . ... Monkewitz, S. & Good, J. 2003, in ASP Conf. ... We describe the architecture of a general cross-comparison engine capable of spatially matching sources in one astronomical source catalog with those in another. ... Support is provided for common catalog formats and data sources (e.g. local disk, database servers), and the addition of support for custom data formats and sources is simplified by the modular architecture employed. ... Data Access: . ... Source List Processing: . ...

... Created: 23 February 2001 . ... SOFTWARE MAINTENANCE MANUAL . ... 9 January 2001 . ... Note: in the final document, the table of contents will be to third level] . The Software Maintenance Manual describes the procedures for installation and maintenance of the software for the Gemini Near-infrared Integral Field Spectrograph (NIFS). ... Section 19.4.3 of the document “Programmatic Requirements for Gemini Instrumentation Development” states the requirements for the Software Maintenance Manual . ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... It's a 10 Layer board ! ... Back-End PCI is a 64 Bit PCI board. ... Independent PCI master and PCI slave. Communication and data transfers all on serial link Handshake communication to Front-End Data rate on one channel between front and back-end ~ 200MByte Back-End Back-End VIDEO FIFO Header #01 Rx Tx PCI BUS Interface XILINX IP PCI REGISTERS SLAVE IF MASTER IF TX COM #10 STATUS REG # 14 COMMAND REG #1C Rx RX COM #10 Header #02 Tx Front-End Basic Board Sequencer ...

... JavaScript version 1.3 provides the following new features and enhancements: . ... See the Client-Side JavaScript Guide for details. ... Changes to the Array object. ... The push method returns the new length of the array rather than the last element added to the array. ... Changes to the Date object. ... Added a day parameter to the setMonth method. ... Added the apply method, which allows you to apply a method of another object in the context of a different object (the calling object). ...

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Rocket Systems . ... Sea Launch . ... Land Launch . ... Universal Space Platform . ... A self-propelled semi-submersible, catamaran-type, Launch Platform (LP) Odyssey is a floating rocket launch system. ... A remotely-controlled rocket fuelling system and an automatic launch system allow to conduct pre-launch operations without any persons present on board the platform. ... Rocket segment systems on the launch platform: ...

Next: CONICA: The high resolution Up: VLT Status and Instruments Previous: VLT First Light . ... Infrared instruments for the VLT . Instrument Summary . ... The already approved infrared instruments for the VLT are: . ... CONICA: Coude Near Infrared Camera (P.I. R. Lenzen, MPIA, Heidelberg) - an historical name as this instrument will be used for diffraction limited 1-5 m imaging, polarimetry and spectroscopy with the NAOS, Nasmyth Adaptive Optics System on UT1 (P.I. G. Rousset, ONERA ). ...

... Arithmetic Functions . Random Numbers . String Conversion . Searching and Sorting . ... There are 4 basic integer functions: . int abs(int number); long int labs(long int number); div_t div(int numerator,int denominator); ldiv_t ldiv(long int numerator, long int denominator); . ... In practice no functions produce truly random data -- they produce pseudo-random numbers. ... The stdlib.h provides 2 useful functions to perform general searching and sorting of data on any type. ...

... Apache HTTP Server Version 2.2 . ... Overview of the Apache EBCDIC Port . ... Version 1.3 of the Apache HTTP Server is the first version which includes a port to a (non-ASCII) mainframe machine which uses the EBCDIC character set as its native codeset. ... prove the feasibility of porting the Apache HTTP server to this platform . ... set/unset when the request body is received - depending on the content type of the request body (because the request body may contain ASCII text or a binary file) . ...

Astronomy Picture of the Day . La Palma Eclipse Sequence . ... Credit Copyright: Miguel Claro ( TWAN ) Explanation: At left, a dramatic image sequence follows late September's total lunar eclipse above a rugged landscape and sea of clouds from the Canary island of La Palma . Composited in a circular fisheye projection, the brightness of the Full Perigee Moon changes drastically in transition from outside the total eclipse phase compared to its dim glow during the 72 minute long totality . ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . Login . See many more Astronomy Listings by: Category or Alphabet . Information source and manufacturer of equatorial platform drive systems for dobsonian telescopes. ... Web Site . ... Additional Information . Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

... Telescope concept . ... The Submillimetron Project is dedicated to astronomical studies at the submillimeter and far infrared wavelengths using a cryogenic telescope located on the Russian segment of the International Space Station (ISS). The Astro Space Center of the Lebedev Institute of the Russian Academy of Sciences is responsible for developing the Submillimetron Project. ... Currently, the Astro Space Center is carrying out a pre-Project study under contract with the Russian Space Agency. ...