To: File From: Jon Hagen Date: Mar 3, 1999 Subject: Brushless DC servo motor operation Draft Figure 1 shows a 3-phase motor connected to a single power supply via three totem pole drivers. ... This current will flow either from Vcc via Q1A (if Q1A is on), or from ground, via the free-wheeling diode D1A (if Q1A is off). ... As less current is required, Q1A will be pulsed with a lower duty cycle. ... The necessary duty cycle reduction will be done automatically by the controller's current feedback loop. ...

... casa . casa::Random . ... Base class for random number distributions. ... These function allow you to manipulate the parameters (mean variance etc. virtual Vector < Double > . ... The virtual member Random::operator() is the common way of extracting a random number from a particular distribution. ... virtual casa::Random::~Random . ... virtual Vector < Double > casa::Random::parameters . ... These function allow you to manipulate the parameters (mean variance etc. ) of random number distribution. ...

Next: HST Paper Products: A New Way to Look at HST Data . ... After providing on-the-fly re-calibration of HST data to archive users, ST-ECF has embarked on a new project aiming at grouping, cosmic ray cleaning and drizzling images taken by most HST instruments. ... The production of the missing jitter files combined with the extraction of additional engineering parameters will greatly enhance the homogeneity and the scientific value of the entire archive. ... 1995, HST Data Handbook, STScI, 107 . ...

... Feger T. How to connect up to 16 GLD 20-24 Mini motor control stages to a PC by using a Ethernet Terminal Server (LANtronix) 1. ... To use this software in combination with the terminal server, a virtual COM port must be created. ... Control a stepper motor: To control an stepper motor, set the generated virtual COM port on "Port" and select the corresponding axis on "Axes" in the IPCOMM software. ... Select the first generated COM port and the corresponding axis ID, then start the control panel. ...

First Name . Last Name . ... A contributed talk . A poster . ... Tentative title of your oral contribution/poster . Required if ask for a Poster or Talk . ... Required if you are member of a collaboration . Short abstract of your oral contribution/poster . Required if you ask for a Poster or Talk . Options . ... Please select additional options . ... Please check the required fields. Powered by jqueryform.com . ...

... Procedure . ... Wind Baffle Pendant Control, located in the 2.5m enclosure. Spreader Bar for wind baffle counterweights, located behind the Machine shop. ... Wind baffle frame tied to eyebolt in floor. ... Move the inner white wind baffle counterweight from the temporary mounting blocks at the front of the wind baffle frame to the standard location at the back. ... Rig the secondary truss to the overhead crane using a large shackle and 4 long nylon straps (load capacity of 1000 Lb. each). ...

The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The following are astronauts who are employed at NASA. Astronaut assignments and category definitions (e.g., "active" astronauts, "management" astronauts) are contained in a separate Flight Operations Directorate (FOD) policy letter. Astronaut . ... Acaba, Joseph M. 2004 . ... Aunon, Serena M. 2009 . ... Barratt, Michael R. 2000 . ... Burbank, Daniel C. 1996 . ... Cassada, Josh A. 2013 . ... 1998 . ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

... Blank lines and lines starting with "#" are skipped. #this line is optional INDENT=2 http://www.foo.com/ The top level entry http://www.bar.com/ One level down from the top http://www.baz.com/ Use a pipe symbol | to make some text appear outside of the link http://www.zap.com/ Use ampersand notation (e.g. &#124;) to include a pipe symbol in the link text * Use an asterisk for the URL if you want text but no link http://www.cow.com/ Two levels down | ... Two levels down (parent is asterisk line) . ...

... Space flight . Crew training . ... Space camp . ... acquiring practical habits and skills of performing all the flight operations envisaged for a flight participant; . maintaining and honing professionally required qualities and skills for a successful activity in conditions of effect of adverse factors of a space flight, as well . ... preparing for the activity outside the spacecraft; . ... preparing for professional activity in conditions of effect of the space flight factors; . ...

home . dfos . ... procedures . ... This page describes how to configure the DFOS login rc files in a standardised way. ... The standardised DFOS login relies on bash, the VLTSW standard PECS and then on .qcrc and .dfosrc files. Installation of PECS provides a .bashrc file, a .profile file and a .pecs directory filled with several further PECS files.. ... HOME}/.pecs/apps-all.env . ... Note though that processAB when called from Condor does source .bashrc, which thus sources your .pecs files. ...

... SphereParams Struct Reference . ... SphereParams (const float radius) . ... Definition at line 50 of file StelGeometryBuilder.hpp . ... Definition at line 103 of file StelGeometryBuilder.hpp . ... Definition at line 120 of file StelGeometryBuilder.hpp . ... Definition at line 112 of file StelGeometryBuilder.hpp . ... Definition at line 118 of file StelGeometryBuilder.hpp . ... Definition at line 110 of file StelGeometryBuilder.hpp . ... Definition at line 114 of file StelGeometryBuilder.hpp . ...

... Bojan Nikolic web pages (r. 329) . ... Building CASA . ... XML Schema for the tools description ( casa.xsd ) . These are my notes on how to create a new tool for CASA, in particular in this case a new tool to implement WVR phase correction. ... include <wvrphase_cmpt.h> . ... All of the files below need to be placed in the casa/code/xmlcasa/implement/synthesis directory and the tool will be built and accessible from Python. ... create (); wvrphase . ... How to create a new tool in CASA . ...

Next: GOCG Pre-Observation Products . Previous: RadioAstron Mission Element Overview . ... Observation Summary File (OSF) . GRT (Ground Radio Telescope) Schedule Files . ... How: The long-term schedulers will produce two files: GSTS-file (General Space Telescope Schedule) to be used by GOCG and LTS-file for all mission elements. ... What: The RSOG will produce schedule files for all GRTs participating in a particular observation, in the format required by each GRT. ...

README for XFree86 on OS/2 : Hardware and Software Requirements . ... XFree86 does not use the video services of the OS/2 operating system. ... XFree86/OS2-3.3.6 may use a local named-pipe connection or a TCP/IP based network connection. ... There are reports that with EMX 0.9 fix 4, you can also use the new 32 bit IBM TCP/IP 4.1 product. The old IBM TCP/IP 2.0, that comes with the IBM PMX product may be used with Warp as well, although it is no longer supported by IBM. ...

Circling around magnetic field lines. ... The ring current . Because positive ions and negative electrons drift in opposite directions (see drawing), that motion will create an electric current that circulates clockwise around the Earth when viewed from north. ... How then can the radiation belt and ring current arise? ... Electric fields are able to push trapped particles earthward, and unlike the purely magnetic motion described earlier, an electric field can also energize them. ...

... Linux systems will usually have the Python core (Version 2.7) available. ... ALSVID Python Utilities for Processing FITS Images ================================================== file _renumber.py Renumber files in a directory fits _1d_to_dat.py Extract a 1-dimensional FITS array as data fits _absolute_value.py Absolute value of an image fits _background_remove.py Fit and subtract a background fits _bias.py Subtract a bias frame fits _bin.py Bin a stack of images one by one ...

May 15, 2008, Baikonur launch site, branch office of S.P.Korolev RSC Energia . According to the flight program and Russian Party commitments under the International Space Station Project (ISS), Progress M-64 transport cargo vehicle was launched from Baikonur launch site at 00:22:56 Moscow time. ... Planned plant tests of Progress M-65 and the first modified Progress vehicle are currently conducted at S.P. Korolev RSC Energia. These vehicles are to be launched to the ISS this year. ...

This page could be summarized with the statement: don't require Apache to use DNS for any parsing of the configuration files . ... In order for Apache to function properly it absolutely needs to have two pieces of information about each virtual host: the ServerName and at least one IP address that the server responds to. ... use IP addresses in Listen . ... In any event it doesn't seem possible to reliably boot a virtual-hosted web server when DNS has failed unless IP addresses are used. ...

... HESS Gamma Ray Telescope . ... Credit: The HESS Collaboration Explanation: Most ground-based telescopes with lenses and mirrors are hindered by the Earth's nurturing, protective atmosphere that blurs images and scatters and absorbs light. But this telescope was designed to detect extreme gamma rays - photons with over 100 billion times the energy of visible light - and actually requires the atmosphere to operate. ... Публикации со словами: gamma ray - telescope - гамма-излучение - телескоп . ...