... They are known: active quantum frequency standards on the ammonia molecules beams (molecular generator) on the hydrogen generator (hydrogen generator) passive quantum frequency standards on the Cs atoms’ beam (cerium atomic beam tube); active and passive quantum frequency standards with an optical pumping of Cs or Rb steams. The stability of atomic beam quantum frequency standard achieves 10^ - 14. ...

Shell scripts can act like standard UNIX commands and take arguments from the command line. Arguments are passed from the command line into a shell program using the positional parameters $1 through to $9 . Each parameter corresponds to the position of the argument on the command line. ... For example: cat printps # This script converts ASCII files to PostScript # and sends them to the PostScript printer ps1 # It uses a local utility "a2ps" a2ps $* | lpr -Pps1 printps elm.txt vi.ref msg . ...

... The New 1997 IEEE Standards Products Catalog features the complete listing of standards publica-tions and services IEEE Standards offers, along with the information you need to place your order. ... Books and Other Products on Standards - contains a detailed listing of informative print and electronic publications relevant to standards and their implementation in areas of electrical engineering, electronics and computer technology. ... IEEE Standards Products Listing 22 . ... Power Electronics 41 . ...

... Classes . ... casa::Aberration . ... More... #include < Aberration.h > . ... Aberration (const Aberration &other) . ... operator() ( Double epoch) . ... Actual Aberration for a certain Epoch is calculated by the () operator as Aberration(epoch), with epoch Double MJD, values returned as an MVPosition . ... Double casa::Aberration::aval [3] [private] . ... Double casa::Aberration::checkEpoch [private] . ... Double casa::Aberration::dval [3] [private] . ... const Double casa::Aberration::INTV [static]...

Bridge World Standard Bridge World Standard (BWS) is a system based on the majority preferences of approximately 125 leading experts and thousands of Bridge World readers. ... Jacoby transfers (splinter rebids; game raise is slam try; two diamonds plus two spades forcing only one round); two spades shows minors; three hearts invitational, major two-suiter; Texas transfers; Stayman (two-spade rebid invitational; two-heart rebid weak; minor rebid forcing); Smolen; three of a minor invitational; Gerber. ...

... There are two ways to produce flat fields for use with IR data. The standard method is to take 'LAMP ON' and 'LAMP OFF' exposures of the calibration spot on the telescope dome. The 'LAMP ON' exposure contains light from both the calibration lamp, which should provide the even illumination needed for the flat field, together with potentially uneven illumination from the telescope and instrument environments. ... In MIDAS, you may directly use COMPUTE/IMAGE to perform the subtraction. ...

This service contributes to the International Service of Geomagnetic Indices (ISGI) of the IAGA . ... The Kp numbers of the previous month are available in tabular format . ... There are available also historical and current Kp and derived indices per anonoymos FTP (see below). ... U.S.A. FTP server: ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/KP_AP/ . monthly update) . ... contains the monthly Kp / ap tables in a simple text format readable for both humans and computers (*.tab). ...

... The pinhole simulation program is a computationally and memory intensive task. ... A parallel version was developed instead, to enable distributed processing on a cluster of workstations. The program makes use of the Message Passing Interface (MPI) standard for parallel processing, implemented as an API (Application Programming Interface) to the Local Area Multicomputer (LAM) programming environment developed at the Ohio Supercomputer Center. ...

The CHIANTI database consists of 4 primary ASCII files for each ion in the database. contains the energy levels in cm^(-1) It includes both experimental data and theoretical values of the levels energies. ... For consistency with Griffin et al 2000, who adapted their atomic structure calculation to a set of observed energies identical to the NIST one, we use the NIST v.2 level ordering. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % E.Landi - Nov 2004 . ...

Digital Equipment Corporation has announced DEC Fortran 90/High Performance Fortran, which is a native Fortran 90/HPF compiler that includes support for parallel execution. ... For parallel execution, a package including DEC Fortran 90 V2.0 together with Digital's PSE is available for Alpha systems running Digital UNIX (OSF/1). For serial execution, DEC Fortran 90 V2.0 is available for Alpha systems running either Digital UNIX (OSF/1) or OpenVMS. ... DEC Fortran 90 V2.0 (for Digital UNIX) . ...

... Credit Copyright: Richard Tresch Fienberg ( AAS ) Explanation: Comet Garradd continues to brighten as it drifts across the northern sky. Last week the comet, visible with binoculars and discernable by its green coma , passed nearly in front of globular cluster M71. M71 was once thought to be an open cluster, but is now known to be an older globular cluster containing over 10,000 stars. ... Publications with keywords: comet - globular cluster . ... M72: A Globular Cluster of Stars . ...

... The material in "From Stargazers to Starships" meets several important requirements of the national standards. Pages cited below are from National Science Education Standards National Academy Press, Washington 1995. ... For example: the sections on astronomy not only describe calendars and sundials (including their construction), but also the astronomy of the ancient Greeks, including two different ways in which ancient Greeks estimated the distance to the Moon. ...

... New engineering model of the feed system is under development now. ... Appendix (The list of used acronyms) ASC Cold Plate DC Astro Space Center of Lebedev Physical Instutute cooled LNAs and antenna feed hermetic device container (part of payload); it contains Formatter, Rb oscillators, synthesizer, control unit and is placed under dish DM Device Module = DC + H-maser EGSE Electronic Ground Support Equipment Electronic Complex ­ all SRT electronics EM Engineering Model FC Focal ...

... Standard Commands . ... TwistedActor.Actor is core code for writing an actor: an instrument control computer (ICC) or hub-based script that does something useful. This manual describes the standard commands and keywords that any actor based on TwistedActor.Actor will support. All actors based on TwistedActor typically support the following standard commands (plus additional device-specific commands documented in that actor's manual). ... Connect one or more devices (if not already connected). ...

... The standard lbn cal diode was compared to the standard diode. Using the standard diode value and the insertion loss the lbn cal value was computed every 25 MHz from 1200 MHz to 1600 Mhz. ... After the measurement, the insertion loss from the standard diode to the output of the coupler was measured over the frequency range 1200 to 1400 Mhz. ... The major uncertainty in the measurement is in the standard diode ENR and the insertion loss of the waveguide transition. ... freq [Mhz] . ...

Next: The root filesystem Up: Overview of the Directory Previous: Overview of the Directory . This chapter is loosely based on the Linux filesystem standard, FSSTND, version 1.2 (see the bibliography, [ Qui95 ]), which attempts to set a standard for how the directory tree in a Linux system is organized. ... This chapter does not explain all files in detail. ... The major parts are the root, /usr љ , /var љ , and /home љ filesystems (see figure 2.1 ). ... Figure 2.1: Parts of a Unix directory tree. ...

This section of library contains information about "classic" Star Catalogs. ... For a Henry Draper Catalog 272149 stars have received a total of 531,211 identifications in 7 сatalogs: . 270456 - in Astrographic Catalogue ( "Carte du Ciel", 4M), . 251943 - in Guide Stars Catalog (GSC), . ... A file with information on the components of 1788 of multiple systems in catalog HDEC (3681 component, or a combination thereof, with 4054 recording). ... A file with information about 21971 variable stars. ...

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. ...

... Science . ... Science Users Information > Observing with ESO Telescopes > Observing Tools and Services > Standard Stars Catalogues > Standard Star Catalogue Search Tool . ... Publications with ESO Data . ... ESO Data . ... This tool searches the standard star catalogues for standards that are within dX airmasses of the target at a given LST. ... In this case put the LST when the target was observed in the TargetLST box as before, and put the LST of the standard star observation in the StdObs LST box...

OptInt PmWiki : Pm Wiki / Wiki Group . ... PmWiki pages are organized into groups of related pages. ... By default, page links are between pages of the same group; to create a link to a page in another group, add the name of the other group and a dot or slash to the page name. ... To link to the default home page of a group, the name of the page can be omitted, like this: . ... For example, to make a default page in the group Foo, create a link to [[Foo/]] (or [[Foo.] ... Main : The default group. ...