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    • 2. 发明申请
    • Methodology and Process For Constructing Factor Indexes
    • 构建因子指标的方法与过程
    • US20130332391A1
    • 2013-12-12
    • US13965621
    • 2013-08-13
    • Anthony A. Renshaw
    • Anthony A. Renshaw
    • G06Q40/06
    • G06Q40/06
    • Approaches to the construction of indexes are addressed wherein a portfolio of securities such as stocks, bonds, or the like and their associated investment weights or shares is generated. Indexes can be used as investment tools in various ways. For instance, indexes comprising a plurality of securities can often be bought and sold more cheaply than buying and selling the individual constituents of the index. This pricing differential allows investment with reduced transaction costs. Alternatively, in passive and enhanced indexing, investments are made with reference to an index. Performance statistics such as return and risk are reported with respect to the reference index. Factor indexes can serve as active manager benchmarks or the underlyers for investable products such as exchange traded funds and mutual funds. Computer based systems, methods and software are addressed for constructing indexes that replicate the returns of a quantitative factor such as medium term momentum or value. Further, processes and methodology are described by which the index can have the best possible replication of the underlying factor returns as well as other desirable characteristics. The methodology provides an approach to determine the index even when all desirable characteristics of the index are not simultaneously achievable.
    • 解决了构建指标的方法,其中生成股票,债券等证券组合及其相关投资权重或股份。 索引可以以各种方式用作投资工具。 例如,包括多个证券的指数通常比购买和出售指数的个体成本更便宜地买卖。 这种定价差异允许投资减少交易成本。 或者,在被动和增强的索引中,投资是参考一个指数。 关于参考指数报告绩效统计,如回报和风险。 因素指标可以作为主要经理人基准,也可以作为交易所交易基金和共同基金等可投资产品的基础。 基于计算机的系统,方法和软件被解决用于构建复制定量因素(例如中期动量或价值)的回报的指数。 此外,描述了过程和方法,通过该过程和方法,索引可以对潜在的因素返回以及其它期望的特征进行最佳的复制。 即使在索引的所有期望特征不能同时实现的情况下,该方法也提供了确定索引的方法。
    • 6. 发明申请
    • Text-based calculator for dimensional computations
    • 用于尺寸计算的基于文本的计算器
    • US20090240751A1
    • 2009-09-24
    • US12381539
    • 2009-03-12
    • Anthony A. RenshawCarl Edward Renshaw
    • Anthony A. RenshawCarl Edward Renshaw
    • G06F15/02G06F3/00G06F3/048
    • G06F15/0258G06F3/04895
    • The present invention relates to tools that handle and perform computations using dimensional and dimensionless values, automatically converting them appropriately within equations, outputting answers in default or user-selected output units, and indicating when inconsistencies or errors are present in the input so that these can be quickly and easily identified and immediately corrected. More particularly, it relates to improved, computer-based systems, methods and software for automatically changing between different units, correctly computing formulas using dimensional values, and outputting the results in arbitrary dimensionally consistent units. The current embodiments accomplish these objectives with as much simplicity, as flexible a syntax, as little typing, and with as little chance of human error as possible.
    • 本发明涉及使用维度和无量纲值来处理和执行计算的工具,它们在等式中适当地自动转换它们,在默认或用户选择的输出单元中输出答案,以及指示何时在输入中存在不一致或错误, 快速,容易地识别并立即纠正。 更具体地说,本发明涉及改进的基于计算机的系统,用于在不同单元之间自动改变的方法和软件,使用尺寸值正确地计算公式,并以任意尺寸一致的单位输出结果。 当前的实施例以尽可能简单的方式实现这些目标,即灵活的语法,如打字,以及尽可能少的人为错误的机会。
    • 8. 发明授权
    • Bearings for x-ray tubes
    • X射线管轴承
    • US5483570A
    • 1996-01-09
    • US264869
    • 1994-06-24
    • Anthony A. RenshawMinyoung Lee
    • Anthony A. RenshawMinyoung Lee
    • A61B6/03F16C33/10H01J35/10H05G1/04
    • F16C33/109A61B6/035A61B6/4488F16C17/026F16C17/045F16C33/107H01J35/101H05G1/04F16C2380/16H01J2235/1046
    • An improved x-ray system/tube comprising an enclosure having oil contained therein, an oil pump, for circulating oil within the system, at least one cooling structure operatively connected to the enclosure and the oil pump, for cooling the oil, an x-ray tube, operatively positioned inside the enclosure for generating and directing x-rays toward a target, the x-ray tube comprising: a glass envelope, a cathode, operatively positioned in the glass envelope, an anode assembly including a rotor and a stator, operatively positioned relative to the rotor, a target, operatively positioned relative to the cathode and operatively connected to the anode assembly, for directing x-rays out of the system, and bearing structure having opposing surfaces and lubricant means having debris therein, operatively connected to the anode assembly, for enabling the target to rotate at a high rate and at a low resistance, the bearing structure including means for capturing the debris such that bearing performance is maintained at or near the level of a bearing structure having no debris therein. The debris capturing means can be grooved, operatively positioned in the bearing structure, for preventing debris from moving to the interface point between the bearing surfaces. This can be accomplished by positioning various grooves in various types of bearing and by forming ridges in the grooves already in the bearing for capturing the debris.
    • 一种改进的x射线系统/管,包括其中容纳有油的外壳,用于在系统内循环油的油泵,可操作地连接到外壳和油泵的用于冷却油的至少一个冷却结构, 射线管,可操作地定位在所述外壳内部,用于产生并将X射线朝向目标,所述x射线管包括:玻璃外壳,阴极,可操作地定位在所述玻璃外壳中,阳极组件,包括转子和定子, 相对于转子可操作地定位,目标,相对于阴极可操作地定位并且可操作地连接到阳极组件,用于将x射线引导出系统,以及具有相对表面的轴承结构和在其中具有碎屑的润滑装置,可操作地连接到 阳极组件,用于使靶能够以高速率和低阻力旋转,所述轴承结构包括用于捕获碎片的装置,使得轴承能够 ce保持在其中没有碎屑的轴承结构的水平或附近。 碎片捕获装置可以被开槽,可操作地定位在轴承结构中,以防止碎屑移动到支承表面之间的界面点。 这可以通过将各种凹槽定位在各种类型的轴承中并且通过在已经在轴承中的凹槽中形成脊来捕获碎屑来实现。