Next: Up: Optical Interferometer Script Data Previous: Optical Interferometer Script Data . ... Programmer's reference . ... The plot selection widget . ... Astrometry . ... Script library files . ... Introduction . ... Data files . ... Basic widget procedures . Load data . ... File usage . ... Data and auxilliary files . ... Output files . ... Open the data file . ... Open a data file . Access a data file . ... Accessing data files . ... NPOI raw data files . ... NPOI raw packet data files . ...

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• Introduction
• Optical Interferometer Script Data Reduction Version 8 for IDL
• Pass band integrations

... Radio astronomy uses radio waves to study regions of space. Single-dish radio telescopes produce blurry images. Interferometry is a technique used to overcome the blurring and produce sharper radio images. The spacing between the radio telescope dishes in an interferometer determines the size of the objects that can be resolved by the interferometer. Using many dishes together in an interferometer array allows astronomers to form more complete images of objects. ...

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• What is Interferometry?
• An interferometer array
• Resolution of an interferometer

Next: Imaging by an Optimizing Method . ... A big advantage of this numerical integrator is its stability: the error in the semi-major axis and the eccentricity depends only on the step size and does not grow with an increasing number of time steps. ... As the integration time increases, the numerical results become more contaminated by various errors. ... A new symplectic integrator produces no secular truncation errors in the actions of a Hamiltonian system. ...

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• AIRY: Astronomical Image Restoration in interferometrY
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Next: Description of algorithm Up: A Method of Integrating Previous: A Method of Integrating . The fast real-time processing of radiometer signals can be successfully implemented because of the existence of modern high performance ADC and data acquisition systems. ... On the other, hand the median-like rank estimation are very robust to spike type contamination (up to 50%), but there is loss in efficiency in case of normally distributed, spike-free signal. ...

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• A Method of Integrating
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... Search PostgreSQL resources | ... Tsearch2 - is the full text engine, fully integrated into PostgreSQL RDBMS. Text Search is integrated into PostgreSQL 8.3 ! ... Download ispell dictionaries ready to use with tsearch2. ... chezh dictionaries , check also this article for more information. 61-tsearch-french-utf8.diff.gz - patch by Cedric Villemain, which adds utf8_french configuration (with snowball stemmer and list of french stop words) for fr_FR.UTF-8 locale . ... Text Search was sponsored by: . ...

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Next: RECEIVER CHOICE Up: Spectral-Line Observing at AO Previous: Spectral-Line Observing at AO . ... This involves deciding which receiver you wish to use, the observing procedure and parameters you wish to employ, what frequency range and set-up for the correlator boards you want, integration length, any equipment you may need to deal with RFI (filters, radar blankers, etc.), etc. ... These files are automatically saved into your project area on the ``observer'' computer. ...

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• VLBI at Arecibo Observatory
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... NICMOS has four detector readout modes that may be used to take data. ... The use of SLOW mode imposes a 3 second readout overhead which increases the minimum possible integration time (to slightly more than 3 seconds). When multiple readouts are obtained in ACCUM mode, the readout overhead becomes rather large (e.g., 30 seconds at the beginning and end of an exposure for NREAD=10 making 60 seconds the minimum exposure time). At this time we advise observers to use the FAST readout mode. ...

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• WFC3 Instrument Handbook
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Leon Takhtajan: Introduction to conformal field theory: Liouville model 1. Introduction: "A historical overview from Liouville to Polyakov" 2. Basic models of conformal field theory on a Riemann sphere: ) Case c=1: free Gaussian field (Euclidean boson massless field) ) Case c<1: Dotsenko-Fateev's Coulomb gas 3. Classical theory of Liouville equation and uniformization of Riemann surfaces 4. Liouville model in conformal field theory as quantum geometry of Riemann surfaces 5. ...

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GTK+ / Gnome Application Development . ... Inspired by the success of the similar K Desktop Environment (KDE) project, the burgeoning popularity of the GNU/Linux operating system, and and the power of the GTK+ graphical toolkit, Gnome grew quickly --- within a year, hundreds of programmers were involved and many thousands of lines of code had been written. ... Gnome is a part of the GNU Project, whose overall goal is developing a free operating system (named GNU) plus applications to go with it. ...

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• General Concept of MIDAS
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• EBCCD Tutorial abstract and introduction

... Format of the orbital elements | ... Collection of the determined by KIAM orbital elements valid for the backward integration of the spacecraft motion . Collection of the modified by IKI orbital elements valid for the forward integration of the spacecraft motion . Two kinds of the INTERBALL Tail probe orbital elements' collections are presented here. ... The backward in time integration was fulfilled at IKI for Tail probe orbit from now up to the launch. ... IKI RAN | SSC IKI RAN | ...

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• The INTERBALL Auroral PROBE orbital elements collections
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... Meta Index . Library of Fortran 90 (and Perl) utilities needed for SAS task development. ... Module index . General-purpose array-processing utilities . Array or vector scalar integers . Return largest true index of a logical vector . Return smallest true index of a logical vector . ... Array or vector scalar reals . ... Array or vector array or vector . ... DSS utilities . ... Routines which return information about DSS components . ... Routines which act on DSS RangeT vectors . ...

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• Exposure corrections - introduction:

... Welcome to the Everyday Classroom Tools web site! ... When you see the symbol on the right, , it means there is an accompanying Adobe Acrobat document (in "pdf" format) you can view and print out. ... The files for download are: Title and Contents Section , The Threads of Inquiry, The Keys to Inquiry, and Folklore Resources , Assessment Strategies , and Bibliography and Journal Form . ... Kindergarten - Second Grade . Second Grade - Fourth Grade . ... Everyday Classroom Tools Home Page . ...

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... Astrophysics Group . ... Introduction to COAST . ... The quest for high angular resolution at optical wavelengths has prompted the development of a variety of techniques to overcome atmospheric seeing at astronomical sites. ... The Cambridge Optical Aperture Synthesis Telescope ( COAST ) was planned as a coherent array of four telescopes operating in the red and near infra-red, using Michelson interferometry on baselines of up to 100m to give images with a resolution down to 1 milliarcsecond. ...

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... Thanks to special permission from Cambridge University Press, we are able to bring you the complete Numerical Recipes in Fortran 77 book On-Line! ... 1.0 Introduction 1 . ... 2.4 Tridiagonal and Band Diagonal Systems of Equations 42 . ... 3.2 Rational Function Interpolation and Extrapolation 104 . ... 7.2 Transformation Method: Exponential and Normal Deviates 277 . ... 9.6 Newton-Raphson Method for Nonlinear Systems of Equations 372 . ... 12.3 FFT of Real Functions, Sine and Cosine Transforms 504 . ...

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Next: State of the problem Up: Old neutron star distribution Previous: Abstract . Recent results from BATSE device onboard GRO observatory have shown full isotropy of gamma-ray bursts locations upon the sky and their unhomogeneous space density ) (Meegan et al. 1992), where is the angle between the source and the galactic center, b is the galactic latitude and signifies averaging upon the whole sample. ...

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• State of the problem
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Subject of Astronomy. ... Celestial Sphere. ... Spherical Frames of Reference: Horisontal and Equatorial Coordinates, Ecliptical System. ... Transformation of Celestial Coordinates. ... Change of Object Coordinates as a Result of Diurnal Rotation of Celestial Sphere. Phenomenons, Which Lead to Celestial Coordinates Change. ... Motion of Equator, Ecliptic, and Their Poles. ... Diurnal Solar Motion on Different Latitudes. ... Time Equation. ... Apparent Motions and Configuration of Planets. ...

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Next: Case Study 1: The Up: Problem Based Learning in Previous: Problem Based Learning in . In most astronomy courses, we present the students with information about some topic, and then test their understanding of this topic using problem sheets. Problem Based Learning (PBL) is a teaching method that reverses this sequence. Students are presented with a problem first. ... Next: Case Study 1: The Up: Problem Based Learning in Previous: Problem Based Learning in Paul Francis 2001-06-21 ...

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. Comparison of conditionally periodic solutions with the results of numerical integration in the two rigid body problem . N. Yu. Saburova . Arkhangelsk State Technical University, Arkhangelsk, Russia Abstract: . No abstract Key words: . Very Long Baseline Interferometry (VLBI), celestial mechanics, conditionally periodic solutions, numerical integration, two rigid body problem.

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• EVN Symposium 2016

... With forseeable saturation of scaling CMOS devices the electron spin att racts much attention as a complement or even a replacement of the electron charge in digital information processing. ... Because of these properties the electron spin lifetime in silicon is long, which makes silicon perfectly suited for spin-driven applications. ... It is straightforward to apply the same techniques to obtain a spin lifetime above 1ns making silicon films and fins perfect spin interconnects. ... Wien - New York...

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Research Activities . Integrated superconducting submm receivers and spectrometers. ... Superconducting Integrated Submm Spectrometer for Laboratory Applications. ... Proposed Superconducting Integrated Submm spectrometer for laboratory applications can in situ detect radiation from a coolable rf source (4 - 100 K) within frequency range of 200 - 700 GHz at receiver noise temperature: below 500 K (direct detection sensitivity better than 10 -13 W). ... Prototype of the Integrated spectrometer (a). ...

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