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Chair of solid state physics . ... Defects in crystals . ... Lectures program for the undergraduate students of the Faculty of general and applied physics of Moscow Institute of Physics and Technology (State University) . The defect-free and unlimited solid is though a useful ideal construction, but it is quite far from reality. ... At the beginning, the 0-dimensional defects like vacancies, interstitials, dislocation kinks and kinks of surface steps are discussed. ... Grain boundary dislocations. ...

... Both Surface temp any object `near' beam to be within 2°C of ambient 21 May 2010 FTT Technical meeting 2 Camera Thermal Operation Scenarios No enclosure cooling fan running: not acceptable if the air temperature in the enclosure is lower than -5°C [0°C from camera spec] No control over humidity ­ dew point problems Start-up issues in cold weather allows some ventilation but otherwise allows ... Peltier on: set temperature of -85°C produces T = 8°C camera has a 50mm silent fan. ...

Microsymposium 34, MS058, 2001 ANOMALIES OF THE MOON'S THERMAL EMISSION IN THE IR SPECTRAL RANGE (10.5 - 12.5 micron). ... Sternberg State Astronomical Institute, Moscow, 119899, Russia, pugach@sai.msu.ru Summary: New satellite measurements of the lunar-surface radiation temperature were used to construct the spatial angular function of thermal radiation of the Moon in the infrared (10.5-12.5 micron) spectral range. ... These thermal anomalies are observed only in the limited range of phase angles. ...

Next: Modes of Operation Up: CCD Scientific Performance Previous: Field of View . Thermal excitation of charge carriers from the valence to the conduction band creates a dark current signal which may vary with position in the array, and also has temporal shot noise variation. ... In a device devoid of localized defects which give rise to individual dark current spikes , most dark current arises from electrons generated at interface states at the surface. ...

... Comet Halley's Nucleus . ... While probably formed at the same time as Io, the difference between the surfaces of these two moons of Jupiter could hardly be greater. ... In 1994, Clementine spent 70 days in lunar orbit mapping the Moon's surface. ... Red stars are cool, with temperatures of around 3,000 degrees Kelvin (K), while blue stars are hotter and can have temperatures over 30,000 degrees K. Our own lovely yellow Sun's temperature is a comforting 6,000 degrees K. Star Trails in Northern Skies...

The turret floor sits on a set of rollers bolted to the feed tower. The rolling surface sits between the bottom of the floor and the rollers. ... The plot shows the roll of the turret floor during a turret spin (.ps) ( .pdf) from 26 to 340 degrees and back (roll is in the direction of rotation). ... If there were 6 sections of rolling surface you might expect this spacing to be 60 degrees (or some beat of the 60 degree spacing and the spacing of the fixed rollers). ...

... 2013 July 31 . 130 Years of Earth Surface Temperatures . Image Credit: GISS , NASA . Explanation: How has the surface temperature of Earth been changing? ... On average, the display demonstrates that the temperature on Earth has increased by nearly one degree Celsius over the past 130 years, and many of the warmest years on record have occurred only recently. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . NASA Web Privacy Policy and Important Notices . ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

Physical conditions of the interstellar medium in galaxies are closely linked to the ambient radiation field and the heating of dust grains. ... The KINGFISH profiles are well suited to examining trends of dust temperature Tdust and нІ because they span a factor of ~200 in the ISRF intensity heating the bulk of the dust mass, Umin. Results from fitting the profile SEDs suggest that, on average, Tdust, dust optical depth о„dust, and Umin decrease with radius. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... A brief snapshot summary of the Australia Telescope Compact Array surface extension project is presented here. ... Go to MNRF Projects Page . ...

... Погружения поверхностей в $R^3$ и основная проблема их классификации с точностью до регулярной гомотопии и кобордизма. ... A. Определение групп $Imm^o(n,1)$ и $Imm^{so}(n,1)$. ... Imm^{so}(0;1)$ степень отображения. ... B. Устойчивые отображения. Нормальная локальная форма устойчивых отображений. ... Пример вычисления алгебраического числа особенностей $I$-cтруктуры коразмерности 1 при регулярной гомотопии двух устойчивых погружений и гомотопии двух устойчивых отображений. ...

Next: C.S. Jeffery, Research Astronomer Up: Research Previous: J.E. Chambers, Research Astronomer Contents . During 1998 Dr Gerry Doyle was involved with three PPARC PDRA research grants, and was also a co-organiser of two international conferences (the COSPAR Symposium `Activity Observed in the Sun and in Similar Stars', and the Armagh Cool Star Workshop `Solar and Stellar Activity: Similarities and Differences'). He was Associate Scientist with the CDS and SUMER instruments on SOHO. ...

Ariel . ... Ariel [AIR-ee-al] is a relatively small satellite and is the brightest moon of Uranus. ... This image of Ariel shows a world pock-marked with craters. ... This image is a mercator map of Ariel. ... This image is a polar stereographic map of the southern hemisphere of Ariel. ... This image is an orthographic view of Ariel centered at -66 degrees latitude and 316 degrees longitude. ... This image of Ariel is at the same geometry of the highest resolution mosaic of Ariel taken by Voyager. ...

Understanding Europa's Radiation Environment and How it Influences Landing Site Characterization G.W. Patterson, L.M. Prockter, C. Paranicas Applied Physics Laboratory Introduction · The surface of Europa is weathered by charged and neutral particles, micrometeroids, and photons. ... Background · Criteria for characterizing potential landing sites [e.g., Figueredo et al., ... 2004) Background · Criteria for characterizing potential landing sites [e.g., Figueredo et al., ... Figueredo et al., ...

PixelVision Inc. ... Soft X-ray Imaging Systems . ... Figure 1: Schematic of a Back-Illuminated CCD . ... To complete CCD thinning, the back surface must be specially "treated" or very low and very unstable responsivity will be exhibited. ... Figure 2: Back-illuminated CCD electron hole pair generation rate as a function of depth from back surface . X-ray detection occurs in a CCD when a high-energy primary x-ray dissipates its energy in the silicon of the back-illuminated CCD. ...

... SPICE System Documentation . Comprehensive set of SPICE System documentation including tutorials, subroutines and data formats descriptions, etc. Other related home pages: . Navigation and Ancillary Information Facility at JPL . MARS-96 Space Mission . ... Please, forward comments and questions about information on this page and all descending NAIF and M96 SPICE implementation pages to NAIF group at IKI . naif@arc.iki.rssi.ru . ...

... Other planets also have mantles. ... From Lava Lamps to Lava Flows . The urge of the mantle to lose heat can also cause rock to bubble up toward the surface in blobs. ... Because blobs carry hot rock from the interior of the planet toward the surface, they supply volcanoes with lava. ... Convection cycles can be tens of thousands of miles tall, as they are in stars; hundreds of miles tall, as they are in planets; or just a few inches tall, as they are in tea kettles. ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

We present spectral line images of [CI] 809 GHz, CO J=1-0 110 115 GHz and HI 1.4 GHz line emission along a ~1ТА region in the l=328ТА direction of the Galactic plane. The [CI] data comes from the High Elevation Antarctic Terahertz (HEAT) telescope, a new facility on the summit of the Antarctic plateau where the precipitable water vapour falls to the lowest values found on the surface of the Earth. ... The [C/CO] abundance ratio averaged through the filament is found to be approximately unity. ...