. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

... The DiFX correlator has a capability to process many phase centers within a primary beam in one pass. ... SCHED supports the multiple phase center mode by providing the details of all the desired phase centers to use for a given pointing center in the output .v2d file, which is used in correlator setup. ... When using this capability, the user should specify the size of the FFTs to do on each baseband channel before spliting the data for each phase center. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Chirp ionosonde main technical characteristics . ... Linear frequency modulated continuous signals sounding method is relatively simple and has wide application in various special-purpose systems. ... Chirp signals which are applying for ionosphere channel diagnostics usually have10KHz/s -- 1MHz/s. We must point out that under modulation speed increasing there is an increase in noise suppression and resolution power. ...

... CfA Home . HCO Home . SAO Home . ... Welcome to CfA . CfA History . ... Laboratory Astrophysics . Extreme Astrophysics . ... 617) 495-7210 . ... 617) 495-7044 . ... 617) 495-7265 . ... HEA Research . ... HEA Home Page . CFA/HEA Home Page . ... High Energy Astrophysics Division (HEAD) . Chandra X-ray Center . ... Chandra Cluster Cosmology Project . Chandra Multiwavelength Project (ChaMP) . ... Chandra-Planck Clusters Project . ... CfA Virtual Observatory Project . ...

... Black Holes in Galactic Centers . ... HST , NASA Explanation: Do all galaxies have black holes at their centers? Although not even a single galaxy has yet been proven to have a central black hole , the list of candidates continues to increase. ... In all the galaxies studied, star speeds continue to increase closer the very center . ... Publications with keywords: black hole - Galactic Center . Publications with words: black hole - Galactic Center . ... Journey to the Center of the Galaxy . ...

... Мировой Центр Данных . ... Мировая система данных МЦД в России и Украине English . ... Данные . ... в Мировой Центр Данных по солнечно-земной физике в Москве ! МЦД по СЗФ является регулярным членом Мировой системы данных Международного совета по науке. ... Наш сайт содержит информацию о МЦД по СЗФ в Москве, его архивах и базах данных, о данных в прямом доступе и о возможности поиска данных, об участии центра в научных проектах и программах, а также ссылки на другие сайты с геофизическими данными. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. July 21, 1997 . In the Center of the Keyhole Nebula . ... Explanation: Stars, like people, do not always go gentle into that good night . The above Keyhole Nebula results from dying star Eta Carinae 's violently casting off dust and gas during its final centuries. ... About APOD > . ...

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... If the psf is very strongly peaked, set bin 1 to ensure ; pixellation is not a problem ; ; To get the profile from the original image, one can use RADPLOTF ; ; INPUTS ; radx radial profile : radial distances (in units of pixels) ; rady radial profile : fluxes ; ; OPTIONAL INPUTS ; x,y center location ; ; OUTPUTS ; outimg 2-d image ; ; KEYWORD INPUTS {defaults} ; imsize size of output image; may be a two element vector {64} ; ...

... PUL VLBI Analysis Center . ... Pulkovo EOP and Reference Systems Analysis Center (PERSAC) is located at the Pulkovo Observatory . ... Processing of VLBI , GPS, and optical observations aimed at analysis of the Earth rotation, station displacement, and celestial reference system. ... Celestial Pole Offset (CPO) and Free Core Nutation (FCN) . Four daily updated CPO and FCN series (models) are provided. ... File fcn1.dat contains the ZM1 FCN model with variable amplitude and phase. ...

. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

Physical and dynamical parameters of particles in outbursting Comet 17 P/Holmes . ... The time depending offset between the center of brightness and center of mass of the comet nucleus has been determined on the ground of positional observations of the comet. ... The motion of these particles allowed subsequent offset between the center of brightness and center of mass of the comet nucleus to be obtained from positional observations. ... comet, dynamical model, outburst, brightness. ...

... A lightweight stick with two balls of equal weight at its end obviously has its CG in the middle. When one ball is twice the weight of the other, the CG divides the distance between them by a ratio 1:2, in a way that makes it closer to the heavier mass ( see figure ). ... Even though the balls are separate, one can speak of their common center of gravity, on the line connecting their centers, 1/3 of the distance from the center of the heavier ball. ...

... CENTER> . ... Заголовки , текстовые элементы, блоковые элементы, а также элементы ADDRESS . ... Элемент CENTER эквивалентен DIV с ALIGN=CENTER. CENTER был введен Netscape прежде, чем в нем была добавлена поддержка элемента DIV. ... Использование атрибута ALIGN в элементах P и заголовках - предпочтительнее использования элемента DIV. Так как CENTER - блоковый элемент , он закрывает открытый элемент P (т.е. заставляет броузер вставлять тег </P>, когда это необходимо). ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

... Pre-university education . ... Research areas . Centers . ... Samara State Aerospace University Research Research and education centers . Scientific Research Laboratory of automated systems of scientific research (SRL-35) . Scientific Research Laboratory of diagnostics and reliability of aircraft and engines (SRL-36) . ... Samara regional center of information in the field of Education and Research (SamRCI-206) . ... Research and Education Center of Computer Science (REC Cs-208) . ...