spectrum1d - compute auto- [and cross- ] spectra from one [or two] timeseries. spectrum1d [ x [ y ] file ] -S segment _ size ] [ -C ] [ -D dt ] [ -N name _ stem ] [ -V ] [ -W ] [ -bi [ s ][ n ] ] [ -bo [ s ] ] spectrum1d reads X [and Y] values from the first [and second] columns on standard input [or x [ y ] file ]. ... Units same as ypower. name _ stem .npower Power spectral density of the noise output. Units same as ypower. name _ stem .gain Gain spectrum, or modulus of the transfer function. ...

... Start a psql session. psql ts_db; . Need to set the locale for the default tsearch configuration. ... Create the table ts_readme table. CREATE TABLE ts_readme ( line_number INTEGER PRIMARY KEY, line TEXT); . ... psql ts_db . Add a column ts_vec of type ts_vector. ... ALTER TABLE ts_readme ADD COLUMN ts_vec tsvector; . Update the ts_vec column using the to_tsvector() function. ... UPDATE ts_readme SET ts_vec = to_tsvector(coalesce(line, '')); ...

The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... That produces an extra resistance to the flow of current. ...

... index.php (1) | bbclone/ | ... To do you can use the following sample and point your browser to it. <?php define("_BBC_PAGE_NAME", "Test"); define("_BBCLONE_DIR", "bbclone/"); define("COUNTER", _BBCLONE_DIR."mark_page.php"); if (is_readable(COUNTER)) include_once(COUNTER); ?> ... Create the file "count.php" and add the following: <?php define("_BBCLONE_DIR", "/the/path/that/leads/to/bbclone/"); define("COUNTER", _BBCLONE_DIR."mark_page.php"); if (is_readable(COUNTER)) include_once(COUNTER); ?> ...

... Aurora from Space . ... Magnetic Storms . ... The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... Why no aurora at the magnetic poles? ...

... CodingљStyle . ... Plugins . ... Building Plugins . ... dynamic plugins are stand-alone dynamic libraries (separate files with .so extension on Linux, .dll in Windows or .dylib on Mac OS X) that are loaded at run-time (on start-up) by Stellarium. This allows dynamic plugins to be distributed separately from Stellarium. static plugins are linked statically at build-time. ... For the rest of this discussion, I will assume you downloaded the source code in the directory /home/me/builds/stellarium . ...

... Data Reduction Guide . ... Please note that all the instructions herein are specifically for the DIS RED chip, the same goes for the BLUE chip, just redo everything but with filenames having "b's" in them instead of "r's". Incidentally as best as I can tell the image region for the RED chip is [145:755,230:665] and for the BLUE chip it is [125:480,125:375] . ... At this point you need to load the ccdredd package. ... Oh, and the read-noise for both chips is 9.5 electrons. ...

php /* * Backup script on server. ... Connects to the mySQL * database and creates a backup file of the whole database. ... Yes/No? ... It will void your warranty :-D! $ date = date ( mdy-hia ); $filename = $savepath/$dbname-$ date .sql ; if($use_gzip== yes ){ $ filename2 = $ file ; } else { $ filename2 = $savepath/$dbname-$ date .sql ; } if($send_email == yes ){ $fileatt_type = filetype($ filename2 ); $ fileatt_name = .$dbname. - .$ ... BR>"; $message .= "--{$mime_boundary}\n" ." ...

In this chapter we will consider two very simple but useful Web agents that I have written on Actor Prolog for my own needs. ... Let us start the Web agent. Fig. ... Start of the Web agent. The Context diagram consists of three blocks: "Logic Programming Sites", "Edit", and "Check". ... Some Web sites that are linked with the logic programming and Prolog are listed in the pulldown list (these addresses are transferred to the "Edit" block from the "Logic Programming Sites" block). ...

... The unusual geometry of this stellar nebula creates somewhat of a mystery. At the nebula's center is a young binary star system that probably created the nebula, but how? ... M16: Dust and an Open Cluster . ... Comet Hale-Bopp Update . ... Will comet Hale-Bopp become the brightest comet of the Century in early 1997? ... It is an emission nebula surrounding a cluster of hot, young stars called the 30 Doradus super cluster. Aurora Astern . ... The aurora, also known.. ... A Total Solar Eclipse . ...

Blackholes Forum Message . ... Can Black Holes Create Space Time? ... Quasar jet streams (QJS) have been exhibiting Faster than light motion since they were first discovered by radio astronomy a long time ago. ... But what if Black holes were creating Space time, what if a relationship between matter energy and space time exists, in a conundrum what can matter exist in, it can exist in side of it's self, how about this as a hypothesis, can black holes create space time? ... www.astronomy.net . ...

... q3ctest=# \timing б  . ... q3ctest=# SELECT generate_series(1, 1000000 ) AS id , random()*360 AS ra , (random()-0.5)*180 AS dec INTO test_q3c ;б  . ... q3ctest=# INSERT INTO running_q3c ( id, ra, dec ) (SELECT generate_series(1 , 100000) , random()*360 , (random()-0.5)*180 );б  . ... q3ctest=# SELECT (SELECT count(*) FROM running_q3c WHERE q3c_radial_query(ra, dec, ra0, dec0, 1)) INTO test_res_q3c FROM (SELECT generate_series(1,1000), random()*360 AS ra0, (random()-0.5)*180 AS dec0) s;б  . ...

Software Development: ST-ECF IRAF Package : Installation instructions . ST-ECF quit 2) Create a directory to contain the STECF external package files. ... 3) Log in as IRAF and edit the extern.pkg file in the hlib directory to define the package to the CL. From the IRAF account, outside the CL, you can move to this directory with the command: % cd $hlib Define the environment variable stecf to be the pathname to the stecf root directory. ... Maintained by Richard Hook Richard.Hook@eso.org ...

SINGULAR POINTS IN THE SOLAR CHROMOSPHERE . ... In the structure of the solar chromosphere, containing information on the configuration of the magnetic field, we have found and identified all the main types of the singular points ( see Fig. 1 ), which are known as inherent features of the 2-D vector field. ... The main types of the singular points are the node, the focus, the center, and the saddle. ... Singular point of the focus type in the solar chromosphere. ...

... As a result of BTA observations of 23 chemically peculiar stars with strong magnetic fields, it was found that in 22 of them the longitudinal magnetic field, measured from the hydrogen line cores are considerably lower (by about 1/3) than the value measured from metal lines in the same spectra. ... New approaches need to be developed in order to interpret the data. ... The Zeeman spectrum of a star with a strong magnetic field, 53 Cam. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Meade 4M Community . ... Meade Instruments . ... Telescopes . LX850 Series . ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado Accessories . ... Weather Stations . ... Slim Line Series . ... Dealer Locator . ... Become a Meade Dealer . ... Slim Line Weather Stations (3) . ...

Python Reference Introduction These notes contain commands useful for analysing and plotting data using the Python programming language, together with the Numpy and Matplotlib libraries. ... So for example, the plot command (from matplotlib) would be executed by typing pylab.plot(.. ... Pulling out part of an array. ... To pick out only the chosen elements, and put them in a new array, use something like: new_array = my_array[index_array] Plotting We use Matplotlib (included in pylab) to plot. ...

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. ...

... Satellite data ] . SMIS ] . The program calculates the satellite orbit using ephemeris data in either predict-telegrams (APT predict, TBUS data) or 2-line NORAD format (TLE data). It determines the start and finish times of acquisition session and stores the data for antenna control during the receipt onto the hard disk. The program creates session schedules, supports selection of specific regions for observation and automatic filtration of satellite passes over the selected regions. ...

... Scientists of Samara State Aerospace University (SSAU) have created an unique mobile platform for the production of training and gaming simulators. ... Such mobile platforms also known as the Stewart platforms became widespread in the world primarily as simulators for training of highly-qualified military pilots and drivers. ... For example, the Rocket and Space Centre Progress is going to test level sensors for residual fuel in the fuel tanks of the rocket carrier on this mobile platform. ...