نتایج جستجو برای: spacecraft

تعداد نتایج: 11066  

Journal: :International Journal of Modern Education and Computer Science 2011

Journal: :Eos, Transactions American Geophysical Union 1997

Journal: :Wilderness & Environmental Medicine 2005

Journal: :Eos, Transactions American Geophysical Union 2004

1998
Robert Twiggs

A revolution in spacecraft guidance, navigation and control technology has started with GPS to autonomously provide spacecraft position, attitude and time information. This new technology is being applied to spacecraft constellations to achieve the precision formation flying required for many proposed science and commercial missions. These innovations will also result in significant reductions ...

2008
Andrew C. Schuerger Steven Trigwell Carlos I. Calle

Atmospheric pressure glow-discharge (APGD) plasmas have been proposed for sterilizing spacecraft surfaces prior to launch. The advantages of APGD plasmas for the sterilization of spacecraft surfaces include low temperatures at treatment sites, rapid inactivation kinetics of exposed microbial cells, physical degradation and removal of microbial cells, physical removal of organic biosignature mol...

Journal: :CoRR 2013
Yury A. Tyapchenko

A salient feature of the manned spacecraft is the predominance of discrete information in the manual control loop of the onboard systems. Specifically, command-signaling control panels (CSCP) as a subsystem of the manual control loop are widely used in the Russian manned spacecraft. In this paper CSCP are classified into four types: a) control panels based on multichannel control; b) control pa...

2015
Saptarshi Bandyopadhyay Soon-Jo Chung Fred Y. Hadaegh

National Aeronautics and Space Administration’s Asteroid Redirect Mission (ARM) aims to capture a Near Earth Orbit (NEO) asteroid or a piece of a large asteroid and transport it to the Earth–Moon system. In this paper, we provide a detailed analysis of one of the main control challenges for the first ARM mission concept, namely despinning and three-axis stabilizing the asteroid and spacecraft c...

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