Describes how spatial region boundaries are handled. The golden rule for spatial region filtering was first enunciated by Leon VanSpeybroeck in 1986: . ... With this in mind, the rules for determining whether a boundary image pixel or table row are assigned to a region are defined below. For image filtering, pixels whose center is inside the boundary are included. ... That is, an row is inside the boundary without regard to its integerized pixel value. ...

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There is often dust associated with ionized regions. Compact HII regions usually have associated dust from a molecular cloud in which the massive star is being "born". ... For such stars the dust is not produced by the star, and a variety of dust features are observed. The planetary nebulae also usually have associated dust from the previous stage of evolution where they were either carbon stars or M-type giants. ... The feature near 11.5 microns in the IC 418 spectrum may be due to SiC dust. ...

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О Центре | ... Проекты | ... О Центре /Проекты /Our Life /Our town . ... Проекты 2005/06 . ... Our town . ... Zelenogorsk - my town Zelenogorsk is a town in Krasnoyarsk Region. ... My Zelenogorsk is the capital of Krasnoyarsk region. ... It is an industrial and very important town in Krasnoyarsk region, because many useful things are prodused here. ... Zelenogorsk Zelenogorsk is one of the towns in Krasnoyarsk region. ... About my town Zelenogorsk is a town is Krasnoyarsk region. ... Центр Образования ...

... The regions can be specified via the outunit parameter in either of two projection-plane coordinate systems, namely `detxy' and `xy'. ... The first choice corresponds to columns DETX and DETY of the standard XMM EPIC event list, the second to columns X and Y . ... This information is obtained from keywords in the header of the supplied event list. ... If outunit is given as `detxy' and if the supplied source list is a standard XMM EPIC product then in principle the event list is unnecessary. ...

... 640W A survey of ultracompact (UC) Hii regions has been carried out by searching for 6.669-GHz methanol maser emission from a sample of 535 IRAS-selected candidates. A total of 201 candidates exhibit methanol emission. These sources have been used, in conjunction with previously identified UC Hii regions, to provide a base for further studies of such regions. ... Methanol maser and/or radio continuum emission is found in 364 cases towards IRAS-selected regions. ...

Plasma phenomena occuring at one place in the magnetosphere also affect other locations This linkage is most pronounced between points that share the same field line, since field lines guide the motion of ions and electrons. ... It follows that the places on Earth most sensitive to distant magnetic effects are the "polar caps" , the regions around the magnetic poles. A good example is the polar aurora . ... way polar field lines . ... and to the Sun . ... Next Stop: #26H. Polar Cap--History . ...

... Samara region . ... To enhance the prestige of engineering and technical professions and to start training personnel for aerospace companies of the region just from school-days - that is the goal of organizers of the tournament in mobile robotics "R2-D2" and their partners joined their efforts to implement the program "Formation of personnel potential for the aerospace industry through the development of technical creativity of children and youth in the field of robotics - R2-D2 Samara". ...

Astronomy Picture of the Day . Sunspot Region 30 . ... Credit: MDI , SOHO , ESA , NASA Explanation: The solar active region designated number 0030 is now appearing on the visible hemisphere of the closest star . ... The panels above were recorded July 15, 16, and 17 (top to bottom) by the MDI instrument on the space-based SOHO Observatory as the solar rotation slowly carried the large, dynamic sunspot group across the Sun's nearside . ... Publications with keywords: Sun - sunspot - active region . ...

... 2002 July 18 . Sunspot Region 30 . Credit: MDI , SOHO , ESA , NASA . Explanation: The solar active region designated number 10030 (or simply region 30) is now appearing on the visible hemisphere of the closest star . ... The panels above were recorded July 15, 16, and 17 (top to bottom) by the MDI instrument on the space-based SOHO Observatory as the solar rotation slowly carried the large, dynamic sunspot group across the Sun's nearside . ... About APOD | ... NASA Technical Rep.: ...

I-GALFA View of a Galactic Tangent Region . ... Image featured in NAIC Newsletter #46 . I-GALFA image of hydrogen gas in a tangent region outside the Sagittarius arm. ... Because we are viewing this gas in a direction closely aligned with (tangent to) its orbital motion, it appears to be moving away from us (we are orbiting the Galactic center with a similar speed, but our own motion in a different direction). ... The gas near 60 degrees longitude is being viewed tangent to its orbital motion. ...