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  • Articles  (2)
  • 27.60.+j  (1)
  • descent control  (1)
  • Springer  (2)
  • 1995-1999  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Proton-neutron interaction at N≅Z — First observation of the Tz=1 nucleus 46 94 Pd48 in-beam (1995)
    Springer
    The European physical journal 353 (1995), S. 233-234 
    Details
    ISSN: 1434-601X
    Keywords: 21.60.Cs ; 23.20.Lv ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The neutron deficient nucleus94Pd was identified and studied for the first time by in-beam spectroscopy. An Iπ=(14+) isomer with t1/2=0.8 (2) μs was observed in a recoil catcher setup inside the multi-detector γ-array OSIRIS. Filter detectors for neutrons and charged particles were used to identify the (2p2n) exit channel of the reaction58Ni+40Ca, populated with only 0.06% of the total evaporation residue cross section. The structure of the isomer is discussed within the frame work of shell model calculations in the (p1/2,g9/2) model space with emphasis on the g 9 2/2 T=0, I=1,9 ”pairing” two-body matrix elements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01292324
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Autonomy capabilities of European deep space probes (1996)
    Springer
    Autonomous robots 3 (1996), S. 19-30 
    Details
    ISSN: 1573-7527
    Keywords: space vehicles ; autonomy ; attitude control ; descent control ; adaptive control ; computer simulation ; remote control ; robots
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The European Space Agency ESA is currently preparing the two deep space missions, Huygens and Rosetta. This paper reviews the related requirements for autonomous operations in a poorly known environment. While for Huygens emphasis is on the control of the descent through Titan's atmosphere, for Rosetta the safe drilling of material samples in the microgravity environment of a comet is analysed. The control concepts to enable adaptive reactions in an uncertain, remote environment are summarized for the crucial mission phases. The performance results obtained from computer simulations are presented and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00162465
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    Paper (German National Licenses)
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