... Mokhovaya st., 11, Moscow, 103907, Russia. ... Proceedings of the 6th IEEE International Specialist Workshop on Nonlinear Dynamics of Electronic Systems, Budapest, Hungary, 16-18 July, 1998 , pp. ... The method for synchronization of drive-response systems on conditions of a large mismatch of parameters is considered on example of the system based on modified Chua's circuit. The approach to information transmission using such method is proposed. ...

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On April 27 the large sunspot in Active Region 8970 was observed using the Adaptive Optics system at the Swedish Vacuum Solar Telescope at La Palma. ... It showed to give a significant improvement of the image quality under less favorable conditions. Click on the image to get a high resolution version. ... The data cube is cut in three pieces to get manageable file sizes, you can glue them together to restore the whole 108 images cube. gband_ao.01_36.cube.fits 36.5 Mb: image 1 - 36 . ...

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• Dust grains from the heart of supernovae
• IBIS - Installation

... Assured of a reliable method of solving the normal equations, we now consider the equations of condition. The observed magnitude m of a star at M air masses with true instrumental magnitude is modelled as ([ 10 ], [ 28 ]) . ... The effective extinction coefficient depends on the effective spectral gradient [ 29 ] of the star, for which we use some color index, affected by half the atmospheric reddening ([ 26 ], [ 10 ]): . ... Thus, for the B band of UBV, we use the (U-V) color. ...

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• Adaptive filtering from the wavelet transform
• Hierarchical adaptive filtering
• ADAPT/ROMAFOT

Next: Scattering properties Up: Polarization properties (transmitted radiation) Previous: Linear polarization: wavelength dependence . Traditionally, the main problem considered in connection with circular interstellar polarization is the meaning of the wavelength where changes the sign . ... This is also demonstrated by Fig. 19 (lower panel) which shows the wavelength dependence of the factors of linear and circular polarization for particles of magnetite as was done by Shapiro ([ 1975 ]). ...

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• Database of Optical Properties -- Level: subsubpage
• Database of Optical Constants -- Level: welcome
• Point matching method

... Since variance is the square of standard deviation, the obvious thing to to is to divide the input variance image by the square of the exposure map . Remember that, regardless of the value of readvarianceset , the task makes use of an internal variance image if either writevarianceset =`yes' or smoothstyle =`adaptive'.) ... However, recall that adaptive smoothing makes use of the input variance to calculate the signal-to-noise ratio (SNR) of the input image. ...

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• Smoothing from an adaptive template

Projectile Motion: In Aristotle's view, objects moved parallel to the Earth's surface until it was time (i.e. it was their destiny) to fall back to the earth . Aristotle believed that the "natural" state of massive objects was to seek the center of the Earth. When a stone is launched, an impetus is given to it to disturb it from its natural condition. ... Archimedes' catapults lobbed quarter-ton stones at the attacking Roman ships, quickly destroying the clumsy Roman siege engine. ...

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• The Galaxy Gallery: Messier Objects

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . Spaceflights Chronology . Chronology of Extravehicular Activity . ISS 45/46 . ... Rocket Space Complexes . ... Launches Chronology . ... Automatic Space Systems . ... HISTORY . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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• INTERNATIONAL SPACE STATION

Astronomy Picture of the Day . ... 18.02.2000 . ... Credit: AO Staff , Keck , LLNL Explanation: From the Earth's surface, Neptune usually appears as a fuzzy blotch. The blurring effects of the Earth's atmosphere deny clearer images. ... February 2000 . ... 1999 2000 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... U. Based on Astronomy Picture Of the Day . Publications with keywords: neptune - adaptive optics . Publications with words: neptune - adaptive optics . ...

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• Астронет > Neptune through Adaptive Optics
• Астронет > sample
• Journal "Peremennye Zvezdy"

... ARC 3.5m | Weather Closure Conditions . The enclosure will be closed by the Observing Specialist under the following conditions. ... This policy will be consulted whenever there are questions or disagreements concerning closure of the APO 3.5-meter telescope due to hazardous conditions or situations, at times when telescope operations are being overseen by an APO Observing Specialist. ... the on-duty Observing Specialist has full responsibility, and sole authority, to make this decision. ...

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• APO Telescope Documentation
• MILT Description

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

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• General Astrophysics
• HIGH RESOLUTION IONOSPHERIC MASS SPECTROMETER P-11
• Physics and Chemistry of Comets

Next: Results Up: Adaptive Regularized Restoration Algorithms Previous: Introduction . For the algorithms discussed here, the restoration approaches have been formulated to handle the problem of an image degraded by a spatially invariant or spatially variant blur operator with additive Gaussian noise. ... Iterative approaches may be used to solve this inverse problem very effectively. ... In order to solve for an optimal restored image and regularization parameter at each iteration, we use . ...

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• Simulated Results with the HST
• Conclusions
• Anand Sivaramakrishnan

... 2000 February 18 . Neptune through Adaptive Optics . Credit: AO Staff , Keck , LLNL . Explanation: From the Earth's surface, Neptune usually appears as a fuzzy blotch. The blurring effects of the Earth's atmosphere deny clearer images. ... The above image of Neptune in three infrared colors demonstrates the clarity of the new technique - as compared to an image of Neptune from Keck II without AO . ... About APOD | ...

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... Research of an atmosphere of the Earth and other planets of Solar system by optical methods . ... The long-term experience of study of atmospheres of planets of Solar system in a department of physics of planets has defined directions and methods of researches spent for laboratory . ... The tasks of laboratory are researches by optical methods of structure of a Terrestrial atmosphere, namely study of spectra of absorption of its compound radiation of natural and artificial sources. ...

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• Sosonkin Mh.G.
• Publications
• Air Optical Communication Systems

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

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Next: QuickLook Data Reduction Pipeline - Keck Adaptive Optics Real Time Data Reduction Software . Up: Adaptive and Active Optics . ... The concept of NAOS 1 Preparation Software (PS) enables any user to optimize the adaptive optics (AO) system, independently of his/her level of expertise. ... The preparation of observations to be carried out with adaptive optics systems (esp. ... the PS returns an optimized set of NAOS parameters for the observation specified by the user. ... NAOS 1 . ...

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• CAOS Simulation Package 3.0: an IDL-based Tool for Adaptive Optics Systems
• Adaptive and Active Optics
• QuickLook Data Reduction Pipeline - Keck Adaptive Optics Real Time Data

The Initial Condition of Cosmological High-Resolution Simulations T. Ogawa et al. ... However, the resolution of their INITIAL conditions is not high. ... The reso- lution of these initial conditions are constrained by the mesh size, in other words, high-frequency components of (x) are neglected initially. We argue the need for cosmological high-resolution sim- ulations to use a high-resolution initial condition, in other words, an initial condition including high-frequency components. ...

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• http://www.mrao.cam.ac.uk/projects/OAS/mroi_visual_intro/
• Astrophysics Group Adaptive Optics Publications
• AO Publications

... Science Users Information > Observing with ESO Telescopes > Phase 2 Preparation > Observing conditions . ... Service Mode Philosophy . ... The following definitions of the observing conditions are common between Phase 1 preparation and Phase 2 preparation, as well as between Service Mode and Visitor Mode observations. ... There are additional Service Mode Policies and Service Mode Guidelines regarding the observing conditions. ... Seeing (Phase 1) and Image quality (Phase2) constraints . ... Moon . ...

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• ESO - E-ELT Site
• "First Light" image from the SINFONI Adaptive Optics Module | ESO
• ESO - Adaptive Optics

Intensity of atmospheric motions in the mabl retrieved from ocean surface radar imagery M. Mityagina E-mail: mityag@iki.rssi.ru Abstract. The paper is dedicated to the theory and practice of analysis of radar images of sea surface, obtained under unstable atmospheres. In this case, the sea surface reveals wind field variations in the marine atmospheric boundary layer (MABL) caused by atmospheric convec-tive processes, accompanied by air motions with mainly vertical direction. ...

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• http://www.iki.rssi.ru/ofo/pdf/BOKZ_e.pdf
• http://www.iki.rssi.ru/conf/mss09/MSS-09_files/pap-eng-2.doc
• PhSRM

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Investigations of the ionospheric response to strong magnetics storms which are usual for our latitudes, are of great interest. ... In the figure, we present ionospheric parameter dynamics during three perturbed days in July 2000. ...

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• East Siberian Center for the Earth's Ionosphere Research. Capabilities and
• East Siberian Center for the Earth's Ionosphere Research. SW radiosignal

. RSAA Home . GSAOI Home . Instrument . Description . Science . Picture Gallery . Performance . Calculator . Contact Us . Internal . Other Links . GSAOI passes critical design review . GSAOI work progresses despite bushfires . RSAA wins GSAOI competition .

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• GSAOI Instrument Description Page
• Gemini South Adaptive Optics Imager Performance Calculator
• GSAOI Latest Developments Page