... 5 Commerce Way Auburn, NY 13210 www.volpiusa.com Contents 1 2 2.1 2.2 2.3 2.4 Historical Overview Fundamentals of Light Propagation in Light Guides Total Internal Reflection Numerical Aperture of a Light Guide Guided Light Outside the Core Medium Phase Shift of Total Reflection 3 Light Guides - Modes 3.1 Mode Equation 3.2 Mode Number of a Light Guide 4 Light Intensity Distribution in a Light ... Such a light guide is referred to as a coherent fiber bundle or image bundle. ...

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

-0670 rex_a_parker@msn.com ereal times id s The Official Publication of the Amateur Astronomers Association of Princeton February 2007 Assistant Director: John Miller (609) 252-1223 jmiller@princetonastronomy.org Program Chairman: Treasurer: Ken Kremer Brian VanLiew (609) 558-4955 (908) 281-7857 ken@princetonastronomy.org brian@princetonastronomy ... There was a concern about keyholders wanting to go out of state for new moon weekends, or to attend other star parties. ...

COPRATES CHASMA NORTH WALL INTERIOR LAYERED DEPOSIT: LAYER MEASUREMENTS AND COMPARISON WITH JUVENTAE CHASMA ILDS USING MARS EXPRESS HIGH RESOLUTION STEREO CAMERA (HRSC) DERIVED TOPOGRAPHY Michael, G.1, E. Hauber1, K. Gwinner1, R. Stesky2 ... Planets, Freie Universitaet, Berlin, Germany 5ESTEC, ESA, Noordwijk, The Netherlands Introduction: The interior layered deposit ( ILD ) in the north wall of Coprates ... The lesser section of the ILD is confined by a ridge of the chasma wall. ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...

... There are preliminary series of photometric and radio spectral observations of the above-mentioned stars, archival data on the light curves of the stars, results of the search for OH and H 2 O maser emission in IRAS point sources that possess the IR parameters similar to Miras. ... The aim is a detailed study of the maser emission variability. ... In 1996-1997, astronomical observations of Mira Ceti-type stars (miras) were carried out in three spectral ranges: optical, infrared, and radio. ...

... Participant : The person whose name appears on the booking form. ... Participation Fee/ Optional Program Price . ... Passport and Visas . ... Travel insurance is highly recommended for all Participants while attending SpaceDTP-2016 and any related optional trips arranged by the Organizer. ... This booking condition states that the Participant must assume that he/she is not covered by the Organizer insurance policy including all liability insurance, for death, injury, damage or any other loss. ...

THE 75th NAME-LIST OF VARIABLE STARS. ... The 75th Name-List consists of two tables. ... the literature, taken from positional catalogues, including USNO A1.0/A2.0 and GSC, or determined by the authors); the range of variability (sometimes the column Min gives, in parentheses, the amplitude of light variation; the symbol ( means that the star , in minimum light, becomes fainter, than the magnitude indicated); and the system of magnitudes used ( P are photographic ...

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

Sun and Geosphere, 2011; 6(1): - 33-35 ISSN 1819-0839 White light corona at different phases of the solar cycle P. V. Stoeva1, A. D. Stoev1, S. V. Kuzin2 1 Space and Solar-Terrestrial Research Institute, BAS, Stara Zagora Department, Bulgaria 2 Lebedev Physical Institute, RAS, Moskow, Russia E-mail: penm@abv.bg, stoev52@abv.bg, kuzin@sci.lebedev.ru Accepted: 12 October 2011 Abstract. ... 33 V. Stoeva, A. D. Stoev, S. V. Kuzin, White light corona at different phases of the solar cycle Fig.1. ...

... In spite of the good potential possibilities, some of the station "Dnepr" design characteristics did not allow us to apply the usual special IS radar measurement methods. ... Thus for IS signal measurements at the "Dnepr" station, we have developed special methods for recording and processing IS signals in order to determine plasma ionospheric parameters. ... Equations (4-5) from the basis for data post processing to obtain ionosphere parameters. ...

... 2 Measurement of PMTs counting characteristics and selection of op erating p oint To select the operating point of the PMT, that is the optimal values of the high voltage supply and pulse discrimination threshold, the command run counting=hv value is provided in the program mass. ... Starting with the minimum voltage (say 550 V) run command run counting=550 for the measurement execution. ... It is recommended to take measurements for the set of values of 0.4, 0.6, 0.8, 1.0. ...

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