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基于基准过程的动态均值-方差最优投资组合选择 被引量:5
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作者 刘利敏 肖庆宪 《数学的实践与认识》 CSCD 北大核心 2013年第1期1-9,共9页
利用动态规划方法研究了基于基准过程的动态均值-方差最优投资组合问题,证明了识别定理,得到了剩余过程的均方最优投资策略和有效前沿.
关键词 均值-方差投资组合选择 识别定理 基准过程 有效前沿
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通过地层沉积过程进行储集层的精细描述 被引量:8
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作者 侯维虹 渠永宏 +1 位作者 张永庆 吕晓光 《石油勘探与开发》 SCIE EI CAS CSCD 北大核心 2004年第B11期106-109,共4页
应用高分辨率层序地层学理论分析萨尔图油田中部北一区断东西块葡Ⅰ油层组的地层沉积过程,发现当地层沉积于基准面上升半旋回时,河道砂体的宽度与厚度、储集层的孔隙度与渗透率减少,而保存沉积相的多样性增加,非河道流动单元类型增多,... 应用高分辨率层序地层学理论分析萨尔图油田中部北一区断东西块葡Ⅰ油层组的地层沉积过程,发现当地层沉积于基准面上升半旋回时,河道砂体的宽度与厚度、储集层的孔隙度与渗透率减少,而保存沉积相的多样性增加,非河道流动单元类型增多,流动单元间的连通性变差;而当地层沉积于基准面下降半旋回时,储集层的所有属性与上升半旋回的变化完全相反。通过对地层沉积过程的分析,可以表征和预测储集层的各种属性,从而表征大庆油田开发老区的层内非均质性。 展开更多
关键词 地层沉积过程(基准而升降) 高分辨率层序 储集层属性
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基于在线测量的制造质量零废品控制模型的研究 被引量:3
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作者 亓四华 费业泰 孙键 《中国机械工程》 EI CAS CSCD 北大核心 2001年第2期223-225,共3页
分析在线测量对零件加工尺寸分布及误判率的影响,建立误判率与加工误差和测量误差之间的数学模型。探计改变加工过程尺寸基准和利用多次加工来降低废品率的措施.建立过程尺寸基准和验收安全裕度的优化数学模型,并给出了应用实例。
关键词 在线测量 零废品控制 过程尺寸基准 安全裕度
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The Six Sigma Approach to Solid Waste Management and Minimization: Moving towards Zero Landfill Facilities
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作者 Matthew Franchetti 《Journal of Environmental Science and Engineering(B)》 2012年第3期299-311,共13页
This article provides an overview of an eleven step solid waste analysis and minimization process that is based on the six sigma approach to problem solving that may be applied at a wide variety of organizations. The ... This article provides an overview of an eleven step solid waste analysis and minimization process that is based on the six sigma approach to problem solving that may be applied at a wide variety of organizations. The six sigma approach provides a holistic process that focuses on minimizing defects, in this case, eliminating waste disposed at landfills. As many organizations are moving towards "zero landfill" facilities, such a process is needed to aid in achieving these goals. The eleven step processes provides details on establishing goals, creating process flowcharts, conducting waste sorts, data collection, establishing baseline data, identifying improvement opportunities, cost justification, executing improvement plans and validating results. The article also includes a case study that applies that eleven step process. The goal of the article is to provide the audience with a structured process to evaluate and minimize solid waste generation based on cost justified improvement opportunities. 展开更多
关键词 Six sigma solid waste auditing zero landfill solid waste minimization.
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生产和会计的逻辑统一
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作者 姚采薇 《时代金融》 2011年第4X期20-20,共1页
我国的会计制度选择了传统的完全成本法,但在管理会计上,生产性的评价不是以资源运转(开工率)为中心的全部成本计算,而是以反应物流速度的现金流或直接成本计算,其更符合新的生产范式。完全成本法的缺陷和局限性日益暴露了出来。
关键词 完全成本法 变动成本法 过程周期时间基准分配法
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Global Financial Planning Education Standards
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作者 Ken Bruce Rakesh Gupta 《Journal of Modern Accounting and Auditing》 2011年第11期1169-1178,共10页
Financial planning may not meet all the accepted criteria of traditional professions such as divinity and law, it does, however, fit the post-modernist view of professions characterized by the role played by professio... Financial planning may not meet all the accepted criteria of traditional professions such as divinity and law, it does, however, fit the post-modernist view of professions characterized by the role played by professional associations. The hallmark of a profession is the presence of a common body of knowledge and it can be claimed that a theoretical body of knowledge for the "financial planning profession" has always existed, although it has only been in recent times that agreement has been reached on a common understanding of the theoretical basis of the financial planning profession. This common body of knowledge is the basis upon which the Financial Planning Standards Board [FPSB] is attempting to develop a global curriculum as part of the certification process for financial planners. The FPSB has developed a curriculum framework to be applied by its affiliate members to ensure consistency in global education standards. A review of Certified Financial Planner (CFP) certification in Australia, China, India and the United States exposes differences in how this is approached. The Intemational Organization for Standardization [ISO] has also emerged as another forum in which global financial planning education standards have been set. Although the FPSB's global financial planning education standards has a high degree of compatibility with the ISO standard, the ISO standard has largely remained as a shelf reference. 展开更多
关键词 professions financial planning EDUCATION body of knowledge
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