Hide Zen home . ... Index . ... Do we really need them for database indexing ? ... We need simple numbering scheme, so that for any given point we could easily calculate the number of "pixel", this is what HealPix provides and lacks HTM. ... During Rtree queries the number of index blocks read is several times greater than during Q3C queries. ... But in Q3C scheme, as we showed before, the circle is segmented, so we extract from the database only a few percents more data than occur in the circle. ...

... PmWiki . ... Go to new wiki . ... The (:if:) directive allows portions of a page to be included or excluded from processing. ... if name PAGENAME:) . current page is named " PAGENAME " . ... if auth LEVEL PAGENAME:) . ... if true:) . ... true if current date is DATE . ... true if current date is DATE or later (unlimited) . ... true if current date is in range DATE1 to DATE2 (inclusive) . ... true if the page pagename exists . ... current page is in group PmWiki or a group beginning with Pmwiki . ...

... Credit: J. C. Casado Explanation: Comet Hale-Bopp 's recent encounter with the inner Solar System allowed many breath-taking pictures. Above, Comet Hale-Bopp was photographed on March 8th in the constellation of Cygnus . ... The North American Nebula is about 1500 light years away, much farther than the comet, which was about 8 light minutes away. ... Publications with keywords: Comet Hale-Bopp . Publications with words: Comet Hale-Bopp . ... Comet Hale Bopp and the North America Nebula . ...

... October 9, 1997 . Hale-Bopp and the North American Nebula . ... Explanation: Comet Hale-Bopp 's recent encounter with the inner Solar System allowed many breath-taking pictures. Above, Comet Hale-Bopp was photographed on March 8th in the constellation of Cygnus . ... The North American Nebula is about 1500 light years away, much farther than the comet, which was about 8 light minutes away. ... About APOD > . ...

... Assured of a reliable method of solving the normal equations, we now consider the equations of condition. The observed magnitude m of a star at M air masses with true instrumental magnitude is modelled as ([ 10 ], [ 28 ]) . ... The effective extinction coefficient depends on the effective spectral gradient [ 29 ] of the star, for which we use some color index, affected by half the atmospheric reddening ([ 26 ], [ 10 ]): . ... Thus, for the B band of UBV, we use the (U-V) color. ...

home . projects . my portfolio . blog . contact . My Ph.D. work was focused mainly on the development of boundary conditions for Smoothed Particle Hydrodynamics simulations of binary stars. ... I developed and tested an innovative way of modeling only the outer parts of stars, therefore allowing for an increased particle and mass resolution in the mass transfer itself. This work was published in Lajoie Sills 2010a (The Astrophysical Journal 726, 66). ...

... Space flight . ... The L-39 two-seat training jet plane is intended for flights in regular and complex meteorological conditions at day and night time, as well as for acrobatic flying. ... A cockpit canopy is pressure-tight with a single layer glazing, the back-folding parts can be thrown off under abnormal condition by pyrotechnical systems. ... Comparable on size and assigned tasks with the American F-16 and F/A-18 fighters, the MIG - 29 is presently in the service of 23 countries of the world. ...

OptInt PmWiki : Pm Wiki / Conditional Markup . ... current page is named " PAGENAME " . ... true if current page name matches the regular expression . ... The name and group conditionals will work even for an included page, as the "name" and "group" conditionals always check the currently displayed page, as opposed to the page that the markup appears in. ... can be used with the name and group conditional markups, thus: . ... current page is in group PmWiki or a group beginning with PmWiki . ...

... Telescopes . ... Fig. ... Theoretical optical resolving power of the MSS, depending on the phases of the moon under typical weather conditions. ... The optical resolving power of the telescope with the MSS allows to observe stars of up to the 12 magnitude. ... Currently, more than 90% of observational time with the MSS spectrograph is used in the spectropolarimeter mode with a diffraction grating 24.7њ. ... wide spectral region with a reciprocal linear dispersion of 9 ?/mm (0.1215 ?/pix) at a time. ...

It was during "sharing" time in my first week as a teacher's aide at Sunset View Elementary School in San Diego. ... So how can we get our school teachers to know more about science? One approach is to provide science enrichment programs for current and prospective teachers, and many such programs have had success. But there's a second approach that deserves far more attention than it has received: providing opportunities for scientists to become classroom teachers. ...

PowerCommand iWatch 100 Remote Network Monitoring Description The PowerCommand iWatch 100 system provides convenient means for remotely monitoring generator sets and transfer switches that are interconnected with a Cummins Echelon LonWorks network using an Internet Explorer browser operating on a remote personal computer (PC). ... PowerCommand iWatch 100 users can monitor generator set data including engine data, alternator data, and control system status. They can start or stop the generator set. ...

... A three-cell test section roughly representative of the primary mirror was provided for this test by the Steward Mirror Lab. ... Additionally, the tests are intended to determine relative airflow vs. pressure drop characteristics for each of the air flow patterns so the results can be evaluated both as a function of flow rate and of pressure drop along the flow path. ... The bottom (top as installed) was cut out so it could close the chamber for heating and be removed for the cooling tests. ...

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. ...

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... Previous: Generalized Linear Multi-Frequency Imaging in VLBI . ... At Astronomical Observatory of Valencia University (OAUV), CCD observations of asteroids and big planets satellites are obtained since 2001 with a big format camera and several telescopes. ... Software for comparison of single and overlapped CCD fields obtained at different epochs has been developed. ... After images measurement in CCD field, catalogue stars are identified and adjusted with images. ...

... MAO main . ... Fw: June Issue: The Neuroscience of Habits . ... Subject: June Issue: The Neuroscience of Habits . ... MwNzA3S0 =1 =0** Online Exclusives **Can Obsessive-Compulsive Disorder Be Blocked links.email.scientificamerican.com / ctt ?k...wNzA3S0 =1 =0How to Land Safely on M ars http:// links.email.scientificamerican.com / ctt ?kn=19 ms=NDU5NDcyNDQS1 r=NzEzNzI0NTUyNAS2 b=2 j= NDQyNjMwNzA3S0 mt=1 rt=0A Surveillance Network We Could Learn to Love http:// links.email.scientificamerican.com / ...

European Southern Observatory Conditions Governing CFPs and Contracts for VLT Instrumentation POLICY FOR GUARANTEED TIME OBSERVATIONS (GTO) (Ref. ... At least two months prior to the issue of a Call for Proposals the GTO PI will submit to ESO the complete GTO plan and will indicate specifically which part is proposed for the semester which is the subject of the Call. ... In their proposal, the GTO Teams will provide the specific list of targets, or the field coordinates and size to be explored. ...

. Latest HI Rez Visible Satellite Image . IR Enhanced Image of the PNW . (not always available - sorry) . 500 MB surface and the water vapor distribution: . Surface Pressures: . Extreme precipitation in 1995 and 1996 . Temperatures: Jan-Feb , Mar-Apr , May-Jun , July-August , Sept-Oct, Nov-Dec . Precipitation: Jan-Feb , Mar-Apr , May-Jun, July-Aug , Sept-Oct, Nov-Dec . Annual Precipitation Trends . The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

... D.1 Grammar . ... D.3 Comparison of tokenization in CSS2 and CSS1 . This appendix is normative. ... STRING ] S* ]? ']' ; pseudo : ':' [ IDENT | ... LENGTH S* | ... return CDC;} ~= { return INCLUDES;} |= { return DASHMATCH;} { string } { return STRING ;} { ident } { return IDENT ;} # {name} { return HASH;} @import { return IMPORT_SYM;} @page { return PAGE_SYM;} @media { return MEDIA_SYM;} @font-face { return FONT_FACE_SYM;} @charset { return CHARSET_SYM;} @ { ...

This module allows "anonymous" user access to authenticated areas. ... Source File: mod_auth_anon.c . ... This module does access control in a manner similar to anonymous-ftp sites; i.e. have a 'magic' user id 'anonymous' and the email address as a password. ... Anonymous_VerifyEmail The example below (when combined with the Auth directives of a htpasswd-file based (or GDM, mSQL etc. ) base access control system allows users in as 'guests' with the following properties: . ... Default: none . ...