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  • 1
    Electronic Resource
    Electronic Resource
    Coordination of many oscillators and generation of locomotory patterns (1990)
    Springer
    Biological cybernetics 63 (1990), S. 177-184 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract This paper considers a synthesis approach to a decentralized autonomous system in which the functional order of the entire system is generated by cooperative interaction among its subsystems, each of which has the autonomy to control a part of the state of the system, and its application to pattern generators of animal locomotion. First, biological locomotory rhythms and their generators, swimming patterns of aquatic animals and gait patterns of quadrupeds, are reviewed briefly. Then, a design principle for autonomous coordination of many oscillators is proposed. Using these results, we synthesize a swimming pattern generator and a gait pattern generator. Finally, it is shown using computer simulations that the proposed systems generate desirable patterns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00195856
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A new biodegradable polydepsipeptide microsphere for application in drug delivery systems (1990)
    Springer
    Colloid & polymer science 268 (1990), S. 726-730 
    Details
    ISSN: 1435-1536
    Keywords: Sequentialpolydepsipeptide ; polymericmicrosphere ; poly(L-alanyl-L-alanyl-γ-ethyl L-glutamyl-L-lactyl) ; solventevaporationprocess ; drugdeliverysystem ; malerat ; ratprostate ; 17Β estradiol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A sequential polydepsipeptide containing a tripeptide sequence L-alanyl-Lalanylγ-ethyl L-glutamyl and anα-hydroxy acid L-lactic acid, poly(Ala-Ala-Glu(OEt)-Lac), was synthesized to prepare the microspherical particles by the solvent evaporation process. In this case, the solvents play the most important role for the preparation of polydepsipeptide microspheres and, as an example, when 200 mg of the polydepsipeptide dissolved in 10 ml of 98/2% chloroform/dichloroacetic acid mixture was stirred at 400 rpm and 30
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411103
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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