Results 141 to 150 of about 2,781,871 (195)
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Deep-Space Optical Communications
Communications Satellite Systems Conference, 1966Communications requirements for manned deep space missions, using optical links, with PPM, PCM/PL AND coherent reception for each ...
C. CHAPOTON, J. WHITE
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Proceedings of the 18th meeting of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, 2014
Computing shading such as ambient occlusion (AO), subsurface scattering (SSS) or indirect light (GI) in screen space has recently received a lot of attention. While being efficient to compute, screen space methods have several key limitations such as occlusions, culling, under-sampling of oblique geometry and locality of the transport.
Nalbach, O. +2 more
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Computing shading such as ambient occlusion (AO), subsurface scattering (SSS) or indirect light (GI) in screen space has recently received a lot of attention. While being efficient to compute, screen space methods have several key limitations such as occlusions, culling, under-sampling of oblique geometry and locality of the transport.
Nalbach, O. +2 more
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Scientific American, 2017
The article examines research showing that cosmic radiation could be more damaging to astronauts brains than previously thought. Particular focus is given to how this might impact humanity and its ability to live and travel in space. Additional topics discussed include how cosmic radiation ionizes atoms in tissue, research taking place related to the ...
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The article examines research showing that cosmic radiation could be more damaging to astronauts brains than previously thought. Particular focus is given to how this might impact humanity and its ability to live and travel in space. Additional topics discussed include how cosmic radiation ionizes atoms in tissue, research taking place related to the ...
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DEEP SUBFASCIAL SPACE INFECTIONS
Hand Clinics, 1998Infections of the deep subfascial spaces of the hand and wrist are relatively uncommon but well recognized. Potential sites for infection include the interdigital web space, dorsal subaponeurotic space, Parona's space, thenar space, midpalmar space, and hypothenar space.
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IEE Review, 1998
Discusses communications with spacecraft in deep space from the point of view of: signal strength, the role of the DSN (Deep Space Network), the various missions, and the work of ESA/ESOC (European Space Operations Centre).
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Discusses communications with spacecraft in deep space from the point of view of: signal strength, the role of the DSN (Deep Space Network), the various missions, and the work of ESA/ESOC (European Space Operations Centre).
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Deep sea, deep snow … deep space
2012We know that ultra-high-energy protons can travel on average only about 160 million light years before interacting with the cosmic microwave background and losing energy. Ultra-high-energy photons can’t even travel that far before being absorbed by the background.
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Practical Pre-School, 2016
Jenni Clarke continues her series exploring the versatility of play dough. Here she suggests adding dark colours and some sparkle, to work within a space theme, and help children create their own special pictures.
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Jenni Clarke continues her series exploring the versatility of play dough. Here she suggests adding dark colours and some sparkle, to work within a space theme, and help children create their own special pictures.
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IRE Transactions on Military Electronics, 1960
This paper discusses the various factors that influenced the design of the TRACE deep space communications system, the choice of the operating frequency, and the selection of a suitable ground antenna. The configuration of the three different microwave communications system stations?launch, injection, and deep space?employed in the Pioneer III and IV ...
W. D. Merrick +3 more
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This paper discusses the various factors that influenced the design of the TRACE deep space communications system, the choice of the operating frequency, and the selection of a suitable ground antenna. The configuration of the three different microwave communications system stations?launch, injection, and deep space?employed in the Pioneer III and IV ...
W. D. Merrick +3 more
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2012
Any satellite (or a probe) which travels to a distance of 100,000 km or more from the Earth’s surface is known to have entered the region which is normally depicted as deep space. Earth’s Moon is approximately at the distance of 400,000 km; hence, Moon missions are generally termed as deep space missions.
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Any satellite (or a probe) which travels to a distance of 100,000 km or more from the Earth’s surface is known to have entered the region which is normally depicted as deep space. Earth’s Moon is approximately at the distance of 400,000 km; hence, Moon missions are generally termed as deep space missions.
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2015
So far we only examined trajectories where the maneuvers were given by the spacecraft at departure from Earth and/or at arrival at the destination. A third position where a maneuver could be given is during the trajectory. Since the position is between planets, this is referred to as ‘Deep-Space Maneuver’ (DSM).
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So far we only examined trajectories where the maneuvers were given by the spacecraft at departure from Earth and/or at arrival at the destination. A third position where a maneuver could be given is during the trajectory. Since the position is between planets, this is referred to as ‘Deep-Space Maneuver’ (DSM).
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