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161. pdev_birdies_25jun07
... The pdev device uses 12 bit A/D converters and 18 bit registers when computing the butterfly stages of the FFT. ... When entering the pfb butterfly stages, pdev puts the 12 bit A/D samples in the upper 12 bits of the 18 bit register. ... But if you have a sine wave.. ... The maximum amplitude for a sine wave that won't saturate in the butterfly stages will then be 10 bits. ... On 26aug08 a sine wave was injected at 830 MHz into the downstairs IF/LO in place of the noise source. ...
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Ссылки http://www.naic.edu/~phil/hardware/pdev/pdevgain/injectSinewave_26aug08.html -- 8.7 Кб -- 02.09.2008
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162. Un iceberg g?йant se d?йtache du Groenland | Ciel et Espace
... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit?йs . ... des pages consacr?йes ?а la publication de vos photos Mais c'est aussi une vraie communaut?й avec laquelle partager votre passion et nourrir votre curiosit?й. Accueil Un iceberg g?йant se d?йtache du Groenland . ... Dans le nord du Groenland, un bloc de glace de plus de deux fois la taille de Paris s'est d?йtach?й d'un glacier polaire, le glacier Petermann, situ?й ?а environ 1000 km au sud du P??le Nord. ...
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Ссылки http://www.cieletespace.fr/node/5701 -- 29.2 Кб -- 09.04.2016
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163. Flying along the Vela ridge | Astronomy.com
... Tonight's Sky . ... Observing . ... Sky this Month . ... Star Atlas . ... stars . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Sky this Week . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Flying along the Vela ridge . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...
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Ссылки http://www.astronomy.com/news/2012/07/flying-along-the-vela-ridge -- 68.5 Кб -- 10.04.2016
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164. Armagh Astropark: Comets
... Solar System . ... Sun . ... Comets . ... Some get thrown out of the solar system forever, whereas others end up on yet smaller orbits, visiting the inner solar system fairly frequently - such as comet Halley. ... When a comet moves into the inner solar system, this is heated by the Sun, and the ices turn into gas which forms the head or coma of the comet, which may be hundreds of thousands of kilometres across and visible from Earth. The most striking part of many active comets is the tail . ...
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Ссылки http://star.arm.ac.uk/~csj/pus/astropark/comets.htm -- 10.1 Кб -- 23.05.2002
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165. ASP: NGC Images on the Net
... Non-NGC Images . ... Globular cluster in Scorpius (M80)..... image ..... caption . ... Globular cluster in Scorpius (M4)..... image ..... caption . ... Globular cluster in Oph (M107)..... image ..... caption . ... Nebula..... image . ... Globular cluster in Hercules (M13)..... image ..... caption . ... Globular cluster in Ophiuchus (M12)..... image ..... caption . ... Infrared-bright galaxy in Ophiuchus..... image ..... caption . ... Globular cluster in Ophiuchus (M10)..... image ..... caption . ...
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Ссылки http://www.astrosociety.org/resources/ngc4.html -- 48.3 Кб -- 03.01.2012
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166. Second Grade - Fourth Grade Teacher Notes
Teacher Journals . Second Grade through Fourth Grade . ... Linda Kirousis School: Petersham Center School . ... They're called sunflowers cause they follow the sun." - all comments from children. ... Does it take a long time for a forest to develop? ... Earth/Sun? ... The fourth graders tried the board on the second day. ... Fourth grade students will need a review of curves and circles. ... See the social studies notes below. ... Time zones in fourth grade math are in Addison Wesley, Chapter 8. ...
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Ссылки http://hea-www.harvard.edu/ECT/journals24.html -- 46.3 Кб -- 01.10.2012
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167. Discrimination of Point-like Objects in Astronomical Images using Surface
... A new method for the discrimination of point-like objects in astronomical images is presented. The method makes use of the surface curvature of the image, without any a priori knowledge of the shape of the point-like objects. ... We propose a new approach to the problem based on the properties of surface curvature which is related to peaks, pits and flats in images and therefore contain the key information to discriminate point-like objects. ... The image of means is called the analysis image. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/llebariaa.html -- 15.6 Кб -- 03.11.2000
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168. Retrieval of surface from data across the MUSTANG field
... OOF . ... OOF Index . ... OOF software . ... Fits up to fifth order . ... These are experimental data currently being analysed, not final documentation of research. ... Only fitting for Zernike orders up to and including 3rd to concentrate on finding possible off-axis aberrations. ... The results below show that when fitting for all Zernikes up to and including fifth order, the output maps vary greatly between pixels. As above, but fitting up to fifth order Zernike polynomial. ...
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Ссылки http://www.mrao.cam.ac.uk/~bn204/mk2/oof/mustang-field-t18.html -- 37.7 Кб -- 25.11.2009
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169. HST/NICMOS Observations of the Interacting System Arp 299
Next: NICMOS Camera 3 Parallel Up: NICMOS Science Previous: HST-NICMOS Observations of Galactic . ... Observations . ... Arp 299 (IC 694 + NGC 3690) is one of the nearest examples of interacting galaxies with a high infrared (IR) luminosity ( , for the assumed distance Mpc), close to the limiting value for ultraluminous IR galaxies. We present HST /NICMOS observations taken with all three cameras. ... We have presented HST /NICMOS observations of the interacting system Arp 299 (IC 694 + NGC 3690). ...
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Ссылки http://www.stecf.org/conferences/sardinia/node31.html -- 33.3 Кб -- 12.06.2006
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170. The Sunspot Observer - The solar regions - The description of the solar regions
Statistics of sunspot activity . ... The solar regions . ... NOAA 11300's . ... The single sunspot with fine penumbra was crossed the Sun disc since 25.08 to 6.09 across the middle latitudes of the Northern hemisphere. ... The fine sunspots were observed at the 20th parallel of the Northern hemisphere since 27.09 to 2.10, in the Western part of the Sun disc. ... The fine sunspots were observed at the middle latitudes of the Northern hemisphere since 6.11 to 10.11, in the Western part of the Sun disc. ...
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Ссылки http://www.alexeyryback.ru/en/solar_regions/11100.htm -- 34.0 Кб -- 03.02.2016
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171. The M111 - "On Line"
Previous Editions of the M111: . ... The Christmas Star - Fact Or Fiction? ... Any time you have something you'd like to offer - be it a story of how you first got started in astronomy, a star party you just attended, a telescope you just bought, or your favorite constellation, just drop me a line with the story included and I'll be sure to get it posted! ... First and foremost, I'd like to thank everyone who took the time to vote on this year's board and officer elections both in person and by proxy. ...
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Ссылки http://www.wro.org/ras/m111/december2008m111.html -- 27.2 Кб -- 12.02.2009
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172. Where On Earth Will The Sun Rise Earliest - an Astronomy Net Article
Where On Earth Will The Sun Rise Earliest . ... This imaginary circle around the earth at 66? 33' north latitude where the Sun is split in half by the horizon at noon during the winter solstice is called the Arctic Circle . ... So we are looking for a point on earth that is on or just barely west of the International Date Line (it has to be Saturday, January 1?not Friday, December 31) and on or just barely north of the Antarctic Circle, where the Sun rises from its brief arc below the horizon. ...
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Ссылки http://www.astronomy.net/articles/19/ -- 30.0 Кб -- 09.04.2016
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173. http://zebu.uoregon.edu/1996/ph199/hw1.html
... The State that has the highest rate of usage of ethanol as an alternative fuel . ... The last time the Oregon Ducks beat UCLA in basketball . The participants and score of the 1980 Rose Bowl . ... An Image of Issac Newton . ... The second highest paid player in the NBA last season . ... A map of the dams that comprise the British Columbia Hydropower System . ... The current freeway traffic flow in Seattle Washington . An image of a 1966 Shelby (Mustang) . ... Dr DarkMatter's Home Page . ...
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Ссылки http://zebu.uoregon.edu/1996/ph199/hw1.html -- 3.4 Кб -- 08.10.1996
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174. Christopher C. Kraft Oral History
... This oral history session is being conducted with Chris Kraft in Houston, Texas, as part of the NACA [National Advisory Committee for Aeronautics] Oral History Project, sponsored by NASA Headquarters History Office. ... As an example, it was obvious that the use of wing sweep was going to be a major part of the future airplanes of that age, and all of that was confidential. ... As you know, the cowling, as an example, was an invention of NACA, and it changed the look of modern airplanes in those...
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Ссылки http://www.jsc.nasa.gov/history/oral_histories/NACA/KraftCC_8-5-14.htm -- 73.8 Кб -- 08.07.2015
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175. Amateur Telescope Makers of Boston
. This is a new popup window - close it when you are done . Submitted by Mario Motta M.D. on 11/30/2008 20:48:30 . NGC2163 . The "lost" nebula per Steve O'Meara, visually see the butterfly small section, but part of much larger area . Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us
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Ссылки http://www.atmob.org/gallery/showimage.php?id=1078 -- 3.0 Кб -- 09.04.2016
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176. http://www.aaa.org/EyepieceFiles/aaa/2015_10_October_Eyepiece.pdf
... But dust isn't all bad. ... The dust on Mars is much more poisonous than moon dust. ... Manned spacecraft need stronger hulls more than ever because of tiny bombs that might slam into the craft. 20th ANNUAL AAA STARFEST Saturday, October 17th: Central Park , Sheep M ead ow @ 67t h St r eet October 2015 WHAT'S UP IN THE SKY AAA Observers' Guide By Tony Faddoul AAA Events on the Horizon OCTOBER 2015 Saturday, October 3 Observing at Brooklyn Museum Plaza 9:00pm, PTC Tuesday, October ...
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Ссылки http://www.aaa.org/EyepieceFiles/aaa/2015_10_October_Eyepiece.pdf -- 1308.1 Кб -- 29.09.2015
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177. http://www.princetonastronomy.org/papers/jaworski.doc
... After arrival at the Rose Center, the township trip organizer, Michael Hritz, was able to secure tickets for the next space show in the New Hayden Planetarium in the top of the 87-foot sphere that is the centerpiece of the Rose Center. ... Does life exist anywhere else in the universe? ... Some examples shown were if the Hayden Sphere represented the size of the observable universe then a spheroid roughly the size of a beach ball represented the all of the galactic superstructure that has been...
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Ссылки http://www.princetonastronomy.org/papers/jaworski.doc -- 2478.5 Кб -- 27.04.2003
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178. Astrophysical Research Consortium - Apache Point Observatory
... Care and Feeding of the Echelle Spectrograph . Checking the Echelle Fill times from the Saddlebag (SHOWFILLTIMES command) . Echelle Slit Changes and Maintenace . ... The Schmidt camera tank is a highish-vacuum (10-7 to 10^-8 Torr) dewar for the SITe 2048^2 CCD detector which images the spectrum. ... You will get a warning window from Remark, then the bottom half of the config window will display the Slit Focus, CCD Tip, CCD Tilt, and CCD Focus positions for the echelle. ... CCD Focus : -1000 . ...
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Ссылки http://www.apo.nmsu.edu/35m_operations/35m_manual/Instruments/Echelle/Echelle_obsspec_info.html -- 39.1 Кб -- 30.04.2009
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179. http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.2.1/xmccd-4.2.1/docs/usb/usb.ids
# # List of USB ID's # # Maintained by Stephen J. Gowdy # If you have any new entries, send them to the maintainer. # Send entries as patches (diff -u old new). # The latest version can be obtained from # http://www.linux-usb.org/usb.ids # # $Id: usb.ids,v 1.374 2009/01/10 08:11:02 gowdy Exp $ # # Vendors, devices and interfaces. Please keep sorted. # Syntax: # vendor vendor_name # device device_name COM RS232 Adapter 6370 ViewMate Desktop Mouse CC2201 6560 CY7C65640 USB-2.0 "TetraHub" 6830 CY7C68300A
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Ссылки http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.2.1/xmccd-4.2.1/docs/usb/usb.ids -- 351.6 Кб -- 20.01.2009
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