主成分线性加权综合评估模型

以企业为背景 ,建立一个对多指标系统进行综合评估的主成分线性加权数学模型 ,并对企业按多个经营指标进行综合评估和排序 ,为制定企业发展战略提供定量的依据     

气藏生产指示曲线的理论研究

对各类气藏的生产指示曲线特征进行了理论上的研究和探索,并得出结论:定容气藏的p_p-G_p型指示曲线为一直线,封闭气藏的F-G_p型指示曲线为一直线,水驱气藏的H-G_p, 型指示曲线也为一直线。应用直线型的生产指示曲线或指示曲线初始直线段部分的延长线,可以确定气藏的动态地质储量。     

活塞式压缩机指示图测试及研究

介绍了采用机械螺旋弹簧指示器测试Z - 0 .1 1 0 -C型空气压缩机指示图的装置和方法 ;对所测试的指示图进行了整理计算与分析 ;讨论了压力比对压缩机容积系数、排气量和功耗的影响     

How people interpret conditionals: Shifts toward the conditional event.

We investigated how people interpret conditionals and how stable their interpretation is over a long series of trials. Participants were shown the colored patterns on each side of a 6-sided die and were asked how sure they were that a conditional holds of the side landing upward when the die is randomly thrown. Participants were presented with 71 trials consisting of all combinations of binary dimensions of shape (e.g., circles and squares) and color (e.g., blue and red) painted onto the sides of each die. In 2 experiments (N? = 66, N? = 65), the conditional event was the dominant interpretation, followed by conjunction, and material conditional responses were negligible. In both experiments, the percentage of participants giving a conditional event response increased from around 40% at the beginning of the task to nearly 80% at the end, with most participants shifting from a conjunction interpretation. The shift was moderated by the order of shape and color in each conditional's antecedent and consequent: Participants were more likely to shift if the antecedent referred to a color. In Experiment 2 we collected response times: Conditional event interpretations took longer to process than conjunction interpretations (mean difference = 500 ms). We discuss implications of our results for mental models theory and probabilistic theories of reasoning. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

地表土壤中物理吸附轻烃的石油地质意义

油气藏中的轻烃在和环境进行物质和能量的交换过程中,各赋存状态轻烃在沉积岩表面的作用下构成了一个动态的物理化学平衡。油气藏上方地表土壤中的物理吸附轻烃主要来源于油气藏,其组成和含量上的特征可反映油气藏的性质和特征。根据环境中物理吸附轻烃的含量与组分特征,可追踪出轻烃供给源(即油气藏),并可进一步预测与推断出油气藏的性质和特征。物理吸附轻烃技术是让样品在真空状态下比较完全地释放出所吸附的物理吸附轻烃,用气相色谱仪定性和定量分析其中的轻烃组分,然后根据轻烃的浓度变化来推断油气藏的性质和特征。物理吸附轻烃技术在岩性变化很大的四川盆地新场气田实验剖面上、在地质及地表条件复杂的鄂尔多斯盆地镇原-泾川黄土塬实验区及塔里木盆地柴窝堡戈壁实验区都有很好的油气指示意义。该技术取得了很好的应用效果且有着广泛的应用前景。     

云天观测与临近天气的预报

云的演变常常能反映大气的结构情况、天气的变化,是天气变化的指示物,通过对云的连续观测,分析在大气环流背景下影响本地天气系统的云天变化规律及对未来天气的指示作用。系统性云,指示性云,地方云对天气的变化尤为重要,对本地的天气具有指示意义。掌握本地云天的演变模式,对作好短期天气预报,尤其是临近天气预报有积极的意义。     

基于阿拉伯数字中介的汉蒙数词对齐策略

在汉蒙词对齐任务的背景下,针对数词这一特殊的词类,提出了以阿拉伯数字作为转换中介的对齐方法。其基本思想是,将汉蒙文本中的数词分别转换为阿拉伯数字后再决定它们之间是否存在对应关系,即是否可以成为一个对齐连接。转换过程建立在汉蒙基本数词与阿拉伯数字信息对应表——numtable的基础上。numtable中设置了“标志位”信息,用以标明基本数词是否为“10”的倍数。数词到阿拉伯数字的转换模块依据numtable中的“标志位”信息,经过推理,将汉蒙数词分别转换为相应的阿拉伯数字。在实现转换时,不仅考虑了汉语数词和蒙古语数词各自的特征,而且以“词对齐”作为目标,对每一种语言内部不同类型的数词分别采取了不同的转换策略。     

活塞式压缩机指示图测试装置的设计及应用

介绍采用机械螺旋弹簧指标器测试压缩机指示图的基本原理、方法和指科测试装置的设计；在实验研究的基础上总结了对应用此装置的测录的指示图进行整理计算与分析的方法。     

Counterfactual and Prefactual Conditionals.

We consider reasoning about prefactual possibilities in the future, for example, "if I were to win the lottery next year I would buy a yacht" and counterfactual possibilities, for example, "if I had won the lottery last year, I would have bought a yacht." People may reason about indicative conditionals, for example, "if I won the lottery I bought a yacht" by keeping in mind a few true possibilities, for example, "I won the lottery and I bought a yacht." They understand counterfactuals by keeping in mind two possibilities, the conjecture, "I won the lottery and I bought a yacht" and the presupposed facts, "I did not win the lottery and I did not buy a yacht." We report the results of three experiments on prefactuals that examine what people judge them to imply, the possibilities they judge to be consistent with them, and the inferences they judge to follow from them. The results show that reasoners keep a single possibility in mind to understand a prefactual. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

试论碳酸盐岩锶同位素的应用与研究进展

介绍锶及其同位素的地球化学特征及这些特征在碳酸盐岩中的指示意义,综述了近年来国内学者利用碳酸盐岩中锶同位素特征开展海相地层定年、物源示踪、沉积环境变化等方面的研究情况,最后作者针对目前研究存在的局限性,提出了自己的看法.