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  • Articles  (39)
  • 2000-2004
  • 1975-1979  (39)
  • 1975  (39)
  • Mathematics  (37)
  • Sociology
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  • Articles  (39)
Source
Keywords
Publisher
Years
  • 2000-2004
  • 1975-1979  (39)
Year
Journal
Topic
  • 1
    Electronic Resource
    Electronic Resource
    The Role of Peter Parker in the Opening of China (1975)
    Cambridge : Cambridge University Press
    The @China quarterly 63 (1975), S. 539-542 
    Details
    ISSN: 0305-7410
    Source: Cambridge Journals Digital Archives
    Topics: Linguistics and Literary Studies , History , Political Science , Sociology , Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0305741000007323
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  • 2
    Electronic Resource
    Electronic Resource
    Near rings with chain conditions (1975)
    Springer
    Monatshefte für Mathematik 80 (1975), S. 119-129 
    Details
    ISSN: 1436-5081
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract This paper considers near rings with d. c. c. on principalR-subgroups and a. c. c. on prinpipal annihilator right ideals. Many results concerning near rings on finite groups are then consequences of the above discussions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01339080
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  • 3
    Electronic Resource
    Electronic Resource
    Propagation of electromagnetic waves in a nonlinear dielectric slab (1975)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 26 (1975), S. 61-76 
    Details
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Description / Table of Contents: Zusammenfassung Die Anfangsphasen der Fortpflanzung einer elektromagnetischen Störung mit grosser Amplitude in einer nichtlinearen dielektrischen Platte zwischen zwei linearen Materialien werden mit der Methode der Charakteristiken untersucht. Durch Einführung einer Klasse von Modellgleichungen für das nichtlineare Dielektrikum wird eine genaue Lösung erzielt, die die Wechselwirkung zwischen einer zentrierten Schwingung und dem von der Plattengrenzschicht reflektierten Signal beschreibt.
    Notes: Abstract The early phases of propagation of a large amplitude electromagnetic disturbance in a nonlinear dielectric slab embedded between two linear media are investigated by the method of characteristics. This disturbance is triggered by the arrival of an electromagnetic shock wave at one of the interfaces. Reflection and transmission of an arbitrary signal when it arrives at one of the slab boundaries is characterized in terms of nonlinear reflection and transmission coefficients for the interface. No restrictions are placed on the form of the constitutive laws of the material comprising the slab. By introducing, for the nonlinear dielectric, a class of model equations, an exact solution to the characteristic equations which describes the interaction of a centered wave with anarbitrary oncoming signal is obtained. Solutions for the electromagnetic fields are derived for the special case in which the incident disturbance interacts with the reflected signal from the slab interface. A particular case of the disturbance propagating across a nonmagnetic slab is also examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01596279
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  • 4
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    FitzGerald, Stephen, China and the Overseas Chinese. A Study of Peking's Changing Policy, 1949-1970 (Book Review) (1975)
    Leiden : Periodicals Archive Online (PAO)
    Journal of Asian and African Studies. 10:1/2 (1975:Jan./Apr.) 105 
    Details
    ISSN: 0021-9096
    Topics: Ethnic Sciences , History , Political Science , Sociology , Economics
    Description / Table of Contents: Book Reviews
    Notes: SPECIAL NUMBER ON ADULT EPISODES IN JAPAN
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:n207-1975-010-01-000023
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  • 5
    Electronic Resource
    Electronic Resource
    An approximation theorem for sums of certain randomly selected indicators (1975)
    Springer
    Probability theory and related fields 33 (1975), S. 69-74 
    Details
    ISSN: 1432-2064
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00539864
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  • 6
    Electronic Resource
    Electronic Resource
    Exploration geochemistry—Distribution of elements and recognition of anomalies (1975)
    Springer
    Mathematical geology 7 (1975), S. 415-446 
    Details
    ISSN: 1573-8868
    Keywords: data processing ; discriminant analysis ; graphics ; mapping ; sampling ; simulation ; geochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract The exploration geochemist faces a serious problem in reconciling theoretical statistics with the empirical distribution of elements in materials in the earth's crust. The results of computer-simulation experiments being conducted by the Exploration Geochemistry Group at the University of New Brunswick illustrate some of the problems of the relation between frequency distributions and spatial distributions of elements and raise some interesting questions about sampling patterns and physical size of samples. Most importantly, the simulation experiments and empirical examples support the contention that attempts to make an assumption of normality more efficient by performing log transformations on positively skewed data may defeat the purpose of statistical analysis for exploration work. New developments in computer-data presentation and interpretation, including population sorting and classification, illustrate the increasing use of the computer in exploration geochemistry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02080498
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  • 7
    Electronic Resource
    Electronic Resource
    A generalized Lagrangian function and multiplier method (1975)
    Springer
    Journal of optimization theory and applications 17 (1975), S. 211-227 
    Details
    ISSN: 1573-2878
    Keywords: Augmented penalty function ; duality theory ; generalized Lagrangian function ; method of multipliers ; nonconvex programming
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract As is well known, a saddle point for the Lagrangian function, if it exists, provides a solution to a convex programming problem; then, the values of the optimal primal and dual objective functions are equal. However, these results are not valid for nonconvex problems. In this paper, several results are presented on the theory of the generalized Lagrangian function, extended from the classical Lagrangian and the generalized duality program. Theoretical results for convex problems also hold for nonconvex problems by extension of the Lagrangian function. The concept of supporting hypersurfaces is useful to add a geometric interpretation to computational algorithms. This provides a basis to develop a new algorithm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00933876
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  • 8
    Electronic Resource
    Electronic Resource
    On computations involving stiffness matrices stored in rectangular form (1975)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 9 (1975), S. 250-252 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620090120
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  • 9
    Electronic Resource
    Electronic Resource
    A direct method for the general solution of a system of linear equations (1975)
    Springer
    Journal of optimization theory and applications 16 (1975), S. 429-445 
    Details
    ISSN: 1573-2878
    Keywords: Mathematical programming ; conjugate-gradient methods ; variable-metric methods ; linear equations ; numerical methods ; computing methods
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract A computationally stable method for the general solution of a system of linear equations is given. The system isA Tx−B=0, where then-vectorx is unknown and then×q matrixA and theq-vectorB are known. It is assumed that the matrixA T and the augmented matrix [A T,B] are of the same rankm, wherem≤n, so that the system is consistent and solvable. Whenm〈n, the method yields the minimum modulus solutionx m and a symmetricn ×n matrixH m of rankn−m, so thatx=x m+H my satisfies the system for ally, ann-vector. Whenm=n, the matrixH m reduces to zero andx m becomes the unique solution of the system. The method is also suitable for the solution of a determined system ofn linear equations. When then×n coefficient matrix is ill-conditioned, the method can produce a good solution, while the commonly used elimination method fails.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00933852
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  • 10
    Electronic Resource
    Electronic Resource
    Optimal elastic design of trusses by feasible direction methods (1975)
    Springer
    Journal of optimization theory and applications 15 (1975), S. 131-143 
    Details
    ISSN: 1573-2878
    Keywords: Feasible direction method ; minimum-weight design ; structural analysis ; nonlinear programming ; truss design
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract An efficient algorithm, based on Zoutendijk's feasible direction methods, is developed primarily for elastic minimum weight design of trusses subjected to stress, displacement, and cross-sectional constraints. In determining a stepsize in a usable feasible direction, an elaborate procedure is developed to gain as much weight reduction with as little computational effort as possible. A step can be taken to get more weight reduction only if the additional reduction estimated justifies the additional cost.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00933026
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