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IBM Journal of Research and Development

Issue 5 • Date Sept. 1972

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Displaying Results 1 - 12 of 12
  • Combinatory Programming and Combinatorial Analysis

    Publication Year: 1972, Page(s):450 - 461
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (518 KB)

    The principal purpose of this paper is to illustrate by means of simple examples a technique for deriving programs and generating functions from set descriptions. The paper discusses certain interesting correspondences among types of trees, which follow from the use of the technique, and it demonstrates close connections between programming techniques and some aspects of combinatorial theory. View full abstract»

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  • Recursive Computational Procedure for Two-dimensional Stock Cutting

    Publication Year: 1972, Page(s):462 - 469
    Cited by:  Papers (6)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (448 KB)

    A recursive algorithm is implemented to give high computational speeds in the solution of a cutting-stock problem. Optimal edge-to-edge cutting is shown to be achieved more easily by recursive programming than by conventional methods. The technique features preliminary discretization, which lowers the memory requirements in the computational procedure. A comparison is made between this recursive a... View full abstract»

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  • Existence and Uniqueness of the Solution to Holland's Equations for a Class of Multicolumn Distillation Systems

    Publication Year: 1972, Page(s):482 - 488
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (481 KB)

    The Holland equations for a multiunit system of distillation columns, interconnected so as to contain recycle loops, can be expressed as a matrix generalization of the Holland equations for a single complex column. Proof of the existence and uniqueness of a positive solution for the single-column case has previously been given. In this paper a proof is given for the case of a multiunit system cont... View full abstract»

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  • Compiling Optimized Code from Decision Tables

    Publication Year: 1972, Page(s):489 - 503
    Cited by:  Papers (1)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (736 KB)

    This paper reviews the structure of decision tables and methods for converting them into procedural code. It describes new optimization methods, which are applied before, during, and after code generation. Some results from an experimental decision table processor are provided. View full abstract»

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  • Widely Convergent Method for Finding Multiple Solutions of Simultaneous Nonlinear Equations

    Publication Year: 1972, Page(s):504 - 522
    Cited by:  Papers (47)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (978 KB)

    A new method has been developed for solving a system of nonlinear equations g(x) = 0. This method is based on solving the related system of differential equations dg/dt ± g(x) = 0 wherein the sign is changed whenever the corresponding trajectory x(t) encounters a change in sign of the Jacobian determinant or arrives at a solution point of g(x) = 0. This procedure endows the method with a mu... View full abstract»

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  • Detection of Discontinuities in Passivating Layers on Silicon by NaOH Anisotropic Etch

    Publication Year: 1972, Page(s):523 - 529
    Cited by:  Papers (3)  |  Patents (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1214 KB)

    Discontinuities in glasses deposited on silicon substrates are readily detected by a silicon-preferential etch that uses single component alkali solutions. The etchants can be applied to thermally gown oxide films, pyrolytically-deposited passivating layers or sputtered quartz. The character of the discontinuities in these films is shown and the size can be estimated (although both observations ar... View full abstract»

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  • Nuclear Backscattering Analysis of Nb–Nb2O5–Bi Structure

    Publication Year: 1972, Page(s):530 - 535
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (410 KB)

    The technique of nuclear backscattering has been used to analyze the interface reactions of Nb-Nb2O5-Bi multilayer films. This new analytical technique is explained in detail. It has been concluded that the drastic and erratic changes in the electrical properties of niobium oxide switchable resistor devices that take place at 450°C are associated with the gross migrati... View full abstract»

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  • Recent Papers by IBM Authors

    Publication Year: 1972, Page(s):536 - 539
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (287 KB)

    Reprints of the papers listed here may usually be obtained by writing directly to the authors. The authors' IBM divisions and locations are identified as follows: ASDD is the Advanced Systems Development Division; CD, Components Division; DPD, Data Processing Division; FED, Field Engineering Division; FSD, Federal Systems Division; GSD, General Systems Division; OPD, Office Products Division; RES,... View full abstract»

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  • Recent IBM Patents

    Publication Year: 1972, Page(s):540 - 542
    IEEE is not the copyright holder of this material | PDF file iconPDF (292 KB)
    Freely Available from IEEE
  • Authors

    Publication Year: 1972, Page(s):543 - 544
    IEEE is not the copyright holder of this material | PDF file iconPDF (280 KB)
    Freely Available from IEEE
  • Contents of previous issue

    Publication Year: 1972, Page(s): 545
    IEEE is not the copyright holder of this material | PDF file iconPDF (230 KB)
    Freely Available from IEEE
  • Inductance Calculations in a Complex Integrated Circuit Environment

    Publication Year: 1972, Page(s):470 - 481
    Cited by:  Papers (507)  |  Patents (22)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (659 KB)

    This paper describes a method for calculating multiloop inductances formed by complicated interconnection conductors. Knowledge of these inductances leads to useful information concerning the design of such systems. In the approach pursued here, the conductor loops are divided into segments for which so-called partial inductances are calculated. The partial inductances are then appropriately added... View full abstract»

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The IBM Journal of Research and Development is a peer-reviewed technical journal, published bimonthly, which features the work of authors in the science, technology and engineering of information systems.

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Editor-in-Chief
Clifford A. Pickover
IBM T. J. Watson Research Center