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2591 条记录 (耗时 0.043 秒)

    PIPE DEFECT ASSESSMENT SYSTEM AND METHOD
    73.
    发明申请
    PIPE DEFECT ASSESSMENT SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20170322182A1

    公开(公告)日：2017-11-09

    申请号：US15316193

    申请日：2015-06-04

    申请人： SCHLUMBERGER TECHNOLOGY CORPORATION

    发明人： Shunfeng ZHENG ,  Zhanke LIU

    IPC分类号： G01N27/87 ,  G01R33/09 ,  G06F17/10 ,  G06F17/30

    CPC分类号： G01N27/87 ,  E21B47/0905 ,  G01N27/83 ,  G01R33/09 ,  G06F16/00 ,  G06F17/10

    摘要： A technique facilitates examination of a tubing string which may comprise coiled tubing or other types of pipe. A sensor is positioned to monitor a pipe for a magnetic flux leakage signal indicating a defect in the pipe. The sensor outputs data on the magnetic flux leakage signal to a data processing system. Correlations between magnetic flux leakage signals and fatigue life of the pipe may be accessed by the data processing system and these correlations may be used to automatically predict a fatigue life of the pipe. Based on the determined fatigue life, an operation with respect to the pipe is selected and such operation may comprise continued normal use, repair, or removal from service.

    PREDICTING SYSTEM TRAJECTORIES TOWARD CRITICAL TRANSITIONS
    74.
    发明申请
    PREDICTING SYSTEM TRAJECTORIES TOWARD CRITICAL TRANSITIONS 审中-公开

    公开(公告)号：US20170308505A1

    公开(公告)日：2017-10-26

    申请号：US14209314

    申请日：2014-03-13

    申请人： HRL Laboratories, LLC

    发明人： Kang-Yu Ni ,  Tsai-Ching Lu

    IPC分类号： G06F17/14

    CPC分类号： G06F17/14 ,  G06F17/10

    摘要： Described is a system for predicting system trajectories toward critical transitions. The system transforms a set of multivariate time series of observables of a complex system into a set of symbolic multivariate time series. Then pair-wise time series of a transfer entropy (TE) measure are determined, wherein the TE measure quantifies the amount of information transfer from a source to a destination in the complex system. An associative transfer entropy (ATE) measure is determined which decomposes the pair-wise time series of TE to associative states of asymmetric, directional information flows, wherein the ATE measure is comprised of an ATE+ influence class and a ATE− influence class. The system estimates ATE+, TE, and ATE− trajectories over time, and at least one of the ATE+, TE, and ATE− trajectories is used to predict a critical transition in the complex system.

    METHOD AND SYSTEM FOR DECOMPOSING A PROBLEM INVOLVING DISCRETE OPTIMIZATION INTO A PLURALITY OF SMALLER SUBPROBLEMS AND USE OF THE METHOD FOR SOLVING THE PROBLEM
    77.
    发明申请
    METHOD AND SYSTEM FOR DECOMPOSING A PROBLEM INVOLVING DISCRETE OPTIMIZATION INTO A PLURALITY OF SMALLER SUBPROBLEMS AND USE OF THE METHOD FOR SOLVING THE PROBLEM 审中-公开

    公开(公告)号：US20170255592A1

    公开(公告)日：2017-09-07

    申请号：US15447879

    申请日：2017-03-02

    申请人： 1QB INFORMATION TECHNOLOGIES INC.

    发明人： Hamed KARIMI ,  Gilad ROSENBERG

    IPC分类号： G06F17/11 ,  G06N5/02 ,  G06N99/00

    CPC分类号： G06F17/11 ,  G06F17/10 ,  G06N5/003 ,  G06N5/025 ,  G06N99/002 ,  G06N99/005 ,  Y04S10/54

    摘要： A method is disclosed for preprocessing a problem involving discrete optimization over a plurality of variables, the method comprising obtaining an indication of a problem involving discrete optimization; converting the problem involving discrete optimization into a problem suitable for a given optimization oracle architecture of an optimization oracle; providing a given number of times M the problem suitable for the given optimization oracle architecture to the optimization oracle; for each providing of the problem, performing a given number K of calls to the optimization oracle; each call generating a given configuration; obtaining a variable selection criterion, the variable selection criterion for determining at least one variable of the plurality of generated configurations that can be fixed; determining at least one variable that matches the variable selection criterion and a corresponding value for each variable; fixing the at least one determined variable at the corresponding value in the problem involving discrete optimization to thereby preprocess the problem to generate at least one subproblem and providing an indication of the at least one generated subproblem and an indication of the at least one fixed variable.

    Symmetry Graphical Method in Thermodynamics
    78.
    发明申请
    Symmetry Graphical Method in Thermodynamics 审中-公开

    公开(公告)号：US20170242936A9

    公开(公告)日：2017-08-24

    申请号：US14815827

    申请日：2015-07-31

    申请人： Zhen-Chuan Li

    发明人： Zhen-Chuan Li

    IPC分类号： G06F17/50 ,  G06F17/10

    CPC分类号： G06F17/5009 ,  G06F17/10 ,  G06F2217/16

    摘要： From a mathematical point of view, thermodynamic properties behave like multi-variable functions and can usually be differentiated and integrated. Many thermodynamic equations with similar function forms could be resolved into families. The members of a family with ‘patterned self-similarity’ can precisely be defined as symmetrical functions, which are left invariant not only in function form, but also in variable nature and relationship under symmetrical operations. The simplest and must evident symmetrical operations happen in the geometrical symmetry of a physical object. Therefore it is possible to employ geometry to reveal symmetry in thermodynamics, incorporate the symmetry to develop a coherent and complete structure (a diagram or model) of thermodynamic variables, and facilitate the subject with the symmetry. In this invented method you can find out that (1) A variety of (totally forty four) thermodynamic variables are properly arranged at vertices of an extended concentric multi-polyhedron based on their physical meanings. (2) Numerous (more than three hundreds) equations of twelve families can concisely be depicted by overlapping specific movable graphical patterns on fixed diagrams through symmetrical operations. (3) Any desired partial derivatives can graphically be derived in terms of several available quantities like getting any destinations on a map.