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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Discrete & computational geometry 4 (1989), S. 1-2 
    ISSN: 1432-0444
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik , Mathematik
    Notizen: Abstract The Isotopy Conjecture for Oriented Matroids states that the realization space over the real number field of an oriented matroid is path-connected. We provide a nonuniform counterexample of rank 3 on 42 points.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Discrete & computational geometry 4 (1989), S. 97-100 
    ISSN: 1432-0444
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik , Mathematik
    Notizen: Abstract We give an easy general construction for uniform oriented matroids with disconnected realization space. This disproves the longstanding isotopy conjecture for simple line arrangements or order types in the plane.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    Digitale Medien
    Digitale Medien
    Bradford : Emerald
    Sensor review 17 (1997), S. 97-98 
    ISSN: 0260-2288
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Discusses the concept of intelligent sensors and presents a definition of the term. Provides examples of the benefits of using the intelligent sensor approach. Suggests possibilities for future use of intelligent sensors.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 438 (2005), S. 74-77 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Ocean thermal expansion contributes significantly to sea-level variability and rise. However, observed decadal variability in ocean heat content and sea level has not been reproduced well in climate models. Aerosols injected into the stratosphere during volcanic eruptions scatter incoming solar ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Combinatorica 11 (1991), S. 275-293 
    ISSN: 1439-6912
    Schlagwort(e): 68 C 20 ; 13-04 ; 20 C 05
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Notizen: Abstract Using Buchberger's Gröbner basis theory, we obtain explicit algorithms for computing Stanley decompositions, Rees decompositions and Hironaka decompositions of commutative Noetherian rings. These decompositions are of considerable importance in combinatorics, in particular in the theory of Cohen-Macaulay complexes. We discuss several applications of our methods, including a new algorithm for finding primary and secondary invariants of finite group actions on polynomial rings.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 6
    Digitale Medien
    Digitale Medien
    Bradford : Emerald
    Sensor review 20 (2000), S. 135-138 
    ISSN: 0260-2288
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: The use of polymer thick-film technology for the implementation of piezoelectric sensors opens up the way towards the low-cost production of piezoelectric sensing devices. A novel polymer thick-film piezoelectric paste is presented and compared with other piezoelectric materials. The main advantages of these films are the low processing temperature, their flexibility and the ease of creating patterns with feature sizes as small as 200µm. Various applications are proposed demonstrating the potential of these screen printable polymer piezoelectrics.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Aequationes mathematicae 39 (1990), S. 254-260 
    ISSN: 1420-8903
    Schlagwort(e): Primary 51A20 ; Secondary 11Y50, 05B30, 68Q40
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Notizen: Summary A conjecture of Grünbaum states that everyn 3 -configuration in the real plane can also be realized in the rational plane. We prove this conjecture forn ⩽ 12 by computing rational coordinates for all 31 types of 113 -configurations and all 228 types of 123- configurations in the classification of Daublebsky.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 8
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 357 (1992), S. 482-484 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] We use two years of Geosat altimeter data to calculate the variance in surface velocity at crossover points, where time series of the two components of velocity from ascending and descending groundtracks are available. The absolute velocity cannot be determined accurately from altimetry because ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 9
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 375 (1995), S. 432-432 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE news that the pharmaceutical company Bristol-Myers Squibb has registered the name taxol as a trademark in nearly 70 countries worldwide, potentially giving them the right to prevent anyone else from using the name, has given rise to widespread comment in the ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Journal of intelligent and robotic systems 11 (1994), S. 91-107 
    ISSN: 1573-0409
    Schlagwort(e): Plücker coordinates ; Grassmann—Cayley algebra ; robot ; motion space ; series-parallel ; mechanism ; infinitesimal rigiditly ; spline ; Cayley factorization ; bracket algebra ; projective geometry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik , Maschinenbau
    Notizen: Abstract Plücker coordinates are a suitable way to represent lines in space for purposes of studying instantaneous motions of robot arms. Similarly, we can represent any affine subspace of Euclidean space of any dimension. This can be useful for studying motion spaces of robot arms. In this paper, after we introduce Plücker coordinates and develop a few of their basic properties, we present them in a somewhat more abstract setting, called the Grassmann—Cayley algebra. Several other applications of this algebra are also described.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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