... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...

... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...

Course : Social media for civil society Lecturer: Olga Guzhva, Assistant Professor, Vice dean of International cooperation department of sociology, general editor of SCS Journal( www.scsjournal.org) The course consist of main thematic chapter as I theory and practise of e-Democracy, overview of channel of communication and social media , social media tools ( practical cases)) Theme /Modules Theme 1 Introduction to the course ... Discussion involves participants in active learning. ...

RECREATIONAL TELESCOPES . ... ASTRONOMICAL TELESCOPES . ... Home Products Telescopes Astronomical Telescopes ASTELE™ 152MN . ... Whatever eyepiece you're using at the time is your finder eyepiece. ... 152MN is 4.4, so, unlike telescopes with much longer ?-ratios, you're able to use low magnification (27.4 X, 2.3° with the 25 mm PlЖssl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE? ... BK7 optical glass . ...

... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...

University Satellites and . Space Science Education . ... News . ... Internet seminars as the new way of Inter-University Aerospace Centre activity . ... In such a dynamic field as remote sensing, the Internet resources already beat traditional libraries and image depositories. ... In 2000-2005 seven Internet-based seminars were held: "Obtaining satellite images over Internet". ... Images of new types. ... Skobeltsyn Institute of Nuclear Physics, Moscow State University, 2005-2006 . ...

... Epistemology is a part of the study of Philosophy dealing with how we use our senses to know something about the world. ... Yet we know that we can be deceived by our senses. ... If we cannot always trust our senses, how can we ever know anything for certain about the world? ... A branch of epistemology that has come into vogue in the last 10-15 years is the problem of consciousness. ... What relationship is there between our conscious experience and the true nature of the physical world? ...

... В теме В разделе По форуму . ... На форуме начался конкурс - Астрофотография месяца: АПРЕЛЬ! ... Форум . ... Телескопостроение, оптика (Модераторы: I.A.R. , Ivan7enych ) ? Статья Сиглера за 1982 год . ... Сообщений: 157 . Рейтинг: +2/-0 . А мне тоже этот форум нравится . ... Если кто-нибудь владеет хотя-бы общим описанием этой статьи: . ... 1982. ... Записан . Сообщений: 4 453 . ... Моя просьба - это краткое описание статьи или статья, если кто имеет. ... Сообщений: 5 967 . ...

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

... What are mechanisms of secular evolution? ... Internal mechanisms of secular evolution may b e: · bar instabilities in dynamically cold disk galaxies , · deviations from circular rotation due to non-axisymmetric gravitation p otential effect which may b e produced by planar structures ... gravitational and energetic, effects of nuclear sup ermassive black holes ­ they may provoke as attraction as well expansion, · certain gas expansion by galactic winds and fountains, etc ...

ISSN 0038 0946, Solar System Research, 2011, Vol. ... S. Ivanova, L. A. Goncharova, A. V. Mitrofanova, S. G. Popova, T. A. Sherginaa, V. A. Solov'eva, S. N. Oparina, and A. M. Zykova b Sternberg State Astronomical Institute, Moscow, Russia Lebedev Physics Institute of the Russian Academy of Sciences, Moscow, Russia Received April 13, 2010 a Abstract--On February 26, 2009, the first data was obtained in the TESIS experiment on the research of the solar corona using imaging spectroscopy. ... 2009). ...

... They are an indicator of accuracy of the CCD positional observations for a given observatory. ... Planetary and Space Science 56 (2008) 1847 ­1850 Table 4 The best results of CCD asteroid observations from MPC database for some professional observatories MPC Observatory Code Professionals 673 Telescope 000 :07 0.07 0.08 0.06 000 :06 0.06 0.04 0.05 Year Total asteroids Total positions s a 1849 sd Type USA, table Mountain, D ј 0:61 m, FL ј 9:0 m, FOV ј 22 б ...

IDL . Python IDL download calc_kcor.pro . K-corrections calculator in IDL. ... Python download calc_kcor.py . ... Available filter-colour combinations must be present in the ` coeff ` dictionary keys. @type filter_name: string @param filter_name: Name of the filter to calculate K-correction for, e.g. 'u', 'g', 'r' for some of the SDSS filters, or 'J2', 'H2', 'Ks2' for 2MASS filters (must be present in ` coeff ` dictionary) @type redshift : float @param redshift : ... Get the code . ...

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... 18941904; Bespalov P.A. Effective saturation of absorption in a plasma magnetospheric maser. In book: Nonlinear Space Plasma Physics, R.Z. Sagdeev -Editor-in-Chief, American Institute of Physics, 1993, p.339-346]. Magnetospheric plasma maser [Bespalov P.A, Trakhtengerts V.Yu., ... In a magnetospheric plasma maser (MPM) the relatively dense magnetised plasma and the conjugate ends of a magnetic trap form a quasioptical resonator for electromagnetic waves. ...

... About StarCalc . News . ... StarCalc Home Page . Short description of changes, implemented in the StarCalc, . ... CHANGES OF PROGRAM CORE FUNCTIONS. CHANGES OF PROGRAM INTERFACE. CHANGES OF OBJECT INTERFACES. ... New "Output console". ... Information, which is generated by StarCalc, is added into the console - for example, ephemeris tables. ... In the StarCalc state file can be saved autorotation parameters, object selection, object locking mode, auto start and stop autorotation mode. ...

... РЕШЕНИЕ ЗАДАЧ СФЕРИЧЕСКОЙ АСТРОНОМИИ . ... Вычисление точных топоцентрических эфемерид планет . ... В качестве примера в нем приведены исходные данные сервера для расчета эфемерид Марса. Ниже списка располагаются четыре кнопки для модификации исходных данных. ... Через некоторое время, которое в основном определяется скоростью передачи данных по сети, на экране появиться большая таблица рассчитанных значений параметров, снабженных многочисленными комментариями. ...

O-C for observatory with code - 046. September, 2004 . Compressed Ephemeris DE200/LE200 -------------- MP Obs Dynamical Time RA (O-C)cosDEC DEC (O-C) h m s " ' " " 4179 046 2004 9 10.858556 21 51 58.693 -0.35 -15 46 13.30 0.26 4179 046 2004 9 10.860276 21 51 58.588 -0.44 -15 46 14.86 0.45 4179 046 2004 9 10.861726 21 51 58.508 -0.41 -15 46 16.33 0.45 Mean of last 3 obs. ... 91042 046 2004 9 10.015486 1 59 29.878 -2.37 +12 30 33.76 0.81 ? ... Mean of last 6 obs. ...

Электронная библиотека астронома-любителя. ... Ru.Space.News: . Апрель 1998 . ... Дата: 02 апреля 1998 (1998-04-02) От: Alexander Bondugin Тема: Director Ed Stone Projects A Promising Future For JPL [1/2] Привет всем! ... Дата: 02 апреля 1998 (1998-04-02) От: Alexander Bondugin Тема: Mars Global Surveyor Imaging Schedule Announced Привет всем! ... Дата: 02 апреля 1998 (1998-04-02) От: Alexander Bondugin Тема: Announcement of the creation of Espas, the European Space Society Привет всем! ...