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    • 53. 发明授权
    • Methods and systems for extending the range for fiber optic distributed temperature (DTS) systems
    • 扩展光纤分布式温度(DTS)系统范围的方法和系统
    • US08333505B2
    • 2012-12-18
    • US12735356
    • 2009-01-17
    • Chung LeeKent KalarMahesh AjgaonkarMichael Sanders
    • Chung LeeKent KalarMahesh AjgaonkarMichael Sanders
    • G01K3/00
    • G01K11/32
    • Systems and methods for extending the range of a fiber optic DTS system are provided. In one respect, a method may provide steps for transmitting, in a first time period, an optical signal at a first energy level through an optical fiber, collecting backscatter signals as a result of the first transmission, adjusting the first energy level to a second energy level, transmitting, in an additional time period, the adjusted optical signal through the optical fiber, collecting backscatter signals as a result of the adjusted transmissions, and using a portion of the collected backscatter as a result of the first transmission and a portion of the collected backscatter as a result of the additional transmissions, determining one or more parameter profiles, such as a temperature profile.
    • 提供了用于扩展光纤DTS系统范围的系统和方法。 在一个方面,一种方法可以提供在第一时间段内通过光纤在第一能级发射光信号的步骤,作为第一传输的结果收集反向散射信号,将第一能级调整到第二能级 能量水平,在额外的时间段内通过光纤传输经调整的光信号,作为经调整的传输的结果收集后向散射信号,并且作为第一次传输的结果使用收集的反向散射的一部分, 作为附加传输的结果的收集的反向散射,确定一个或多个参数分布,诸如温度分布。
    • 60. 发明申请
    • Method and apparatus for data validation in multidimensional database
    • 用于多维数据库中数据验证的方法和装置
    • US20050038799A1
    • 2005-02-17
    • US10915536
    • 2004-08-11
    • Philip JordanKeith NgMichael SandersJerry Stewart
    • Philip JordanKeith NgMichael SandersJerry Stewart
    • G06F17/00G06F17/30
    • G06F17/30592Y10S707/99932Y10S707/99945
    • A method of managing cells formed from a tuple of members in a multidimensional database include treating at least one dimension in the database as a plurality of hierarchically structured members divided into at least two levels, thereby defining a validation curve as the location of an intersection of the levels. What level the cells in the database are located is evaluated. Cells contained in a lower level are managed by automatically indicating them as one of valid and invalid at data load time, and cells contained in an upper level are managed by indicating them as one of valid and invalid according to a method involving at least one of less reading from and writing to the database at data load time than if all the cells in the upper level were indicated as one of valid and invalid at data load time. A computerized database management system uses a communication interface to practice the method.
    • 一种管理由多维数据库中的成员元组形成的小区的方法包括将数据库中的至少一个维度作为划分为至少两个级别的多个分层结构的成员进行处理,从而将验证曲线定义为 水平。 评估数据库中单元格的级别。 包含在较低级别中的单元通过在数据加载时自动将它们指示为有效和无效来管理,并且根据涉及以下方法中的至少一个的方法将包含在上级中的单元指示为有效和无效的方法来管理: 在数据加载时,读取和写入数据库的时间少于上一级的所有单元格在数据加载时被指示为有效和无效的一种。 计算机化的数据库管理系统使用通信接口来实施该方法。