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... Лекция 1 (63K) | Лекция 2 (86K) | ... Листок 1 (125K) | ... Одной из самых известных задач в этой области, мотивировавшей многочисленные исследования в течение уже более чем века, является 16-я проблема Гильберта, а точнее вторая ее часть. В ней требуется найти верхние оценки на число предельных циклов полиномиальных векторных полей на плоскости. 16-я проблема не решена до сих пор, даже в случае квадратичных векторных полей. ... Векторные поля и поля направлений на плоскости и на сфере. ...

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When using a large number of Virtual Hosts, Apache may run out of available file descriptors (sometimes called file handles if each Virtual Host specifies different log files. ... Unix operating systems limit the number of file descriptors that may be used by a process; the limit is typically 64, and may usually be increased up to a large hard-limit. ... If you system falls into 1 or 2 (above), then increase the file descriptor limit before starting Apache, using a script like #!/bin/sh . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Radio luminosity - spectral type plot for all ultracool dwarfs observed at 4.9 GHz. ... Whilst no radio emission was detected from any of the targets, significant upper limits were placed on the radio luminosities that are below the luminosities of previously detected ultracool dwarfs. Combining our results with those from the literature gives a detection rate for dwarfs in the spectral range M7 тАУ L3.5 of тИ® 9%. ...

... Opportunityт??s devilish view from on high . ... Does temperature have an upper limit like the lower limit of absolute zero? What's the highest measured value? ... The universe s absolute high temperature correlates to the energy and heat that existed during the Big Bang. ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

. Note: This material is from a 1994(!) Talk about CCDs - the physics remains the same, only the detector size has increased since then. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

... Main page News People . ASA . Master . Master net Homepage . ... MASTER . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... Latest news and news archive . ... 21.05.2011 . ... All news ...

... Diffraction-limited Bispectrum Speckle Interferometry and Speckle Polarimetry of the Young Bipolar Outflow Source S140 IRS1 . ... P06P We present bispectrum speckle interferometry and speckle polarimetry of the deeply embedded infrared bipolar outflow source S140 IRS1, a massive protostellar object in the L1204 molecular cloud. ... Our data suggest that the central source is marginally resolved with a FWHM diameter of approximately 20 mas (~ 20 AU). ...

... very large . no limits in x,m . ... x, m, alpha . ... no limits in x,m,alpha . As a first approximation when one wants to learn possible effects of nonsphericity of scatterers. seldom . ... very large / large . ... Study of shape effects since spheroids with different semiaxis ratio present a set of 2D shapes from needles to disks (incl. spheres) . ... Study of complex shape effects. seldom . ... Possible study of 3D shape effects. ... Possible study of shape and structure effects. ...

... Consider Term Limits . ... Give volunteers public recognition . More Tips on Retaining Volunteers . ... previous page | ... People are the heart of your club, and without a variety of volunteers -- and new blood -- to help run the club, it can stagnant. ... Sharing the Universe videos are produced by the Astronomical Society of the Pacific (ASP) from research conducted by the Institute for Learning Innovation, the ASP, and from astronomy clubs like yours. www.astrosociety.org/SharingTheUniverse . ...

... 13 февраля 2014 года . ... ISRO планирует запустить тестовую капсулу в космос во время первого экспериментального суборбитального запуска новейшей индийской ракеты, - Geosynchronous Satellite Launch Vehicle Mark III. ... В октябре 2014 года было объявлено, что первый полет новой индийской ракеты-носителя (полет имеет обозначение GSLV Mk III X1), предназначенный для для вывода спутников на геостационарную орбиту, состоится в период с 1 по 8 ноября 2014 года . ... Вес модуля составит около 4 тонн . ...

... Limit of star magnitude. If you want to obtain best results, you should use reference stars not more dimly than limiting star magnitude of your telescope. Limiting star magnitude depends on time of an exposition also.) This value should be set as " maximum of star magnitude " in a dialog box " Extraction from catalogue". To find darkest stars in the frame, make the following: . ... Two star magnitudes (m1, m2 in two photometric systems) will be outputted in the window "Information". ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . FileљList . ... python . ... mov . checkSegment.py . ... 11 љ @param[in] pA position of starting point at time t = 0 . ... 13 љ @param[in] pB position of ending point at time t = dt . ... 16 љ @param[in] doPos log test position? . ... 20 љ @param[in] axisLim axis limits (a tcc.base.AxisLim) . ... 36 љ Even if you request that position limits be checked, some paths . ... 63 љ # check position limits; expand the limit to include the starting position . ...

Эта книга является плодом многолетней работы ряда американских ученых - членов Общества по исследованиям в области планетарного SETI (The Socity for Planetary SETI Search - SPSR). Авторов сборника объединила страсть к археологической разведке Марса. ... Книга состоит из 10 разделов, подробно описывающих историю открытия и исследований марсианских аномалий, в частности знаменитого "Лица Марса". ... Кроме "Лица", заслуживающими внимания сочтены и 12 других деталей ("Форт", "Город" и др.) ...

... Package . Class . Use . ... FRAMES NO FRAMES All Classes . Packages that use ij.text . ... ij.text . Classes in ij.text used by ij . TextPanel . This is an unlimited size text panel with tab-delimited, labeled and resizable columns. Classes in ij.text used by ij.macro . ... Uses a TextPanel to displays text in a window. Classes in ij.text used by ij.text . ...

The upper limit to stellar masses is unclear, as is the relative importance of nature (stellar physics) and nurture (formation environment) to the limit. ... Despite some uncertainties in the linear growth rate, we conclude that these modes saturate nonlinearly at small and harmless amplitudes. Vigorous, optically thick winds driven by the Rosseland-mean opacity near 100,000 K are more likely to limit the main-sequence lifetime. ...

Общая Астрономическая Конференция > Жизнь астрономов-любителей > Наш "Старлаб" > Вопрос . ... Просмотр полной версии : Вопрос . ... 21.06.2009, 10:46 . ... Viacheslav . ... В разделе "Астрономическое оборудование" появилось сообщение: . ... Статус топикстартера "администратор", сообщений 1. ... Ибо, если администратор то зачем так безбожно спамить и оффтопить. Если не администратор, то почему статус "администратор"?? ...

... Сегодня: 10 апреля 2016 г. Американского миллионера Грегори Олсена отстранили от полета на МКС по медицинским показания. ... Американец должен был лететь на МКС в апреле 2005 года. ... До него туристический полет в космос уже совершили гражданин США Деннис Тито (в 2001 году) и южноафриканский миллионер Марк Шаттлворт (в 2002 году). ... Примерно столько же намеревался заплатить за полет Грегори Олсен. ... Американца Грегори Олсена отстранили от полета на МКС . ...

Next: Case A: Up: No Title Previous: Introduction . Let us assume that two neutron stars with masses and are merging. The following state of the after-merging object is determined by the ratio of the resulting total mass and the Oppenheimer-Volkoff limit. ... Here and below we interpret the Oppenheimer-Volkoff limit not as the standard value derived for the cold equation of state of baryonic matter for a non-rotating neutron star, but as a modified one. ...