Results 271 to 280 of about 70,240 (312)
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Proceedings of the Paris C. Kanellakis memorial workshop on Principles of computing & knowledge: Paris C. Kanellakis memorial workshop on the occasion of his 50th birthday, 2003
Combinatorial optimization problems naturally arise in many application areas, including logistics, manufacturing, supply-chain management, and resource allocation. They often give rise to complex and intricate programs, because of their inherent computational and software complexity.
Laurent Michel, Pascal Van Hentenryck
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Combinatorial optimization problems naturally arise in many application areas, including logistics, manufacturing, supply-chain management, and resource allocation. They often give rise to complex and intricate programs, because of their inherent computational and software complexity.
Laurent Michel, Pascal Van Hentenryck
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Scientific American, 1980
Puzzling changes in the orbital period of Comet Encke, which circles the sun every 3.3 years, can be attributed to the rotation of its icy nucleus and the thrust of gases evaporated from it.
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Puzzling changes in the orbital period of Comet Encke, which circles the sun every 3.3 years, can be attributed to the rotation of its icy nucleus and the thrust of gases evaporated from it.
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Scientific American, 2014
A diagram is presented showing how the Rosetta spacecraft of the European Space Agency will carry out its mission of orbiting Comet 76P/Churyumov-Gerasimenko then sending a lander to the comet's surface from August 2014 through December 2015.
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A diagram is presented showing how the Rosetta spacecraft of the European Space Agency will carry out its mission of orbiting Comet 76P/Churyumov-Gerasimenko then sending a lander to the comet's surface from August 2014 through December 2015.
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Annual Review of Astronomy and Astrophysics, 1987
Recent theoretical and observational studies of comets are reviewed, with an emphasis on in situ data from spacecraft encounters with P/Giacobini-Zinner (September 1985) and P/Halley (March 1986). Topics addressed include clues on the origin and permanence of the Oort cometary cloud, observations of cometary nuclei far from the sun, the Halley nucleus,
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Recent theoretical and observational studies of comets are reviewed, with an emphasis on in situ data from spacecraft encounters with P/Giacobini-Zinner (September 1985) and P/Halley (March 1986). Topics addressed include clues on the origin and permanence of the Oort cometary cloud, observations of cometary nuclei far from the sun, the Halley nucleus,
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Advances in Space Research, 1987
Some of the chemical species which have been detected in comets include H2O, HCN, CH3CN, CO, CO2, NH3, CS, C2 and C3. All of these have also been detected in the interstellar medium, indicating a probable relationship between interstellar dust and gas clouds and comets.
J, Oró, J M, Berry
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Some of the chemical species which have been detected in comets include H2O, HCN, CH3CN, CO, CO2, NH3, CS, C2 and C3. All of these have also been detected in the interstellar medium, indicating a probable relationship between interstellar dust and gas clouds and comets.
J, Oró, J M, Berry
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Science, 2006
Recent advances in cometary science have indicated the importance of mixing of materials in the disk where the planets of our solar system formed. Now, the results from the Stardust Discovery Mission unambiguously show that even more extensive and earlier mixing of the material took place, raising new challenges for theories of the protoplanetary disk ...
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Recent advances in cometary science have indicated the importance of mixing of materials in the disk where the planets of our solar system formed. Now, the results from the Stardust Discovery Mission unambiguously show that even more extensive and earlier mixing of the material took place, raising new challenges for theories of the protoplanetary disk ...
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ESA F-Class Comet Interceptor: Trajectory design to intercept a yet-to-be-discovered comet
Acta Astronautica, 2021Daniel Ranuschio, G H Jones
exaly