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741.
742.
We evaluate stability of preference using a randomized intervention that exogenously changes the income opportunity set of participants. We use a unique panel data, comprising of surveys and lab-in-the-field experiments conducted before and after the intervention, to examine whether our elicited measures of preferences (risk, competitiveness, and confidence) remain stable. We find that after accounting for the change in the income opportunity set, the elicited preferences indeed appear to be temporally stable under a state dependent framework. Consequently, even though we find across subject variation in preferences, the average measure of preferences remain temporally stable, providing support to a representative agent model of decision-making with temporally stable preferences. 相似文献
743.
针对产业集群金融支持评价问题,选取了金融相关率、保险深度等10个指标,运用物元法定量分析了阜新市金融支持度,得出了阜新市的产业集群金融支持度综合评价为“中”的结论. 相似文献
744.
将直线电机置于井下,直接驱动柱塞泵举升原油,有利于提高系统效率和节能。根据直线电机抽油泵结构,结合柱塞和阀球运动模型,运用动网格技术和自编程UDF模块对Fluent进行二次开发,实现了柱塞和阀球运动与流场的耦合求解。可以确定泵筒内任意计算时刻流场状态,揭示了柱塞往复运动过程中泵筒内部流场演化、阀球运动和流场特性。计算结果与实验结果吻合较好,为研究新型抽油泵提供了参考和依据。 相似文献
745.
提出了利用紧凑型静电加速管对强流相对论电子束进行加速的概念。通过理论分析及粒子模拟,对1kA、500kV的初始入射电子束,在约0.8m的加速段加速使其达到10MeV,在没有聚束磁场的前提下电子束可以得到传输和加速。通过优化设计可使加速腔的最大场强降为20MV?m?1。 相似文献
746.
吴建国 《南通工学院学报(社会科学版)》2001,17(2):4-6
简要介绍了过程控制发展的几个阶段,并着重对现场总线的技术特点、现场总线的一般结构形式以及几种常用的现场总线进行了分析。 相似文献
747.
吴康茹 《湛江师范学院学报》2009,30(1):42-46
18世纪法国启蒙文学史叙述中存在着一些需要重新认识和探讨的具体问题。文中围绕怎样重新评价法国启蒙文学成就、认识法国启蒙文学发生机制,以及如何认识18世纪法国启蒙文学中的公共文体问题,探讨了重构18世纪法国启蒙文学史的可能性。 相似文献
748.
赵逵夫 《陇东学院学报(社会科学版)》2008,(1)
《牛郎织女》的两主人公分别来自周人和秦人的祖先,是我国从史前直至近代农业经济社会中男耕女织家庭的集中反映。牛女传说具有突出的反封建性,反映了广大劳动人民对幸福生活的不懈追求和对爱情的无限忠贞。《山海经.海内经》、《山海经.大荒西经》、《山海经.大荒北经》都有周祖叔均突出贡献的记载,《诗经》、《史记.周本纪》中更有祭祀周田祖和先周历史的详细描述。周祖叔均发明了牛耕,是周民族历史上杰出的首领,也成了周民族的田祖。甘肃庆阳地区属于古代文献中所说的豳地的范围之中,是周人的发祥地和早期活动地区。《诗经.小雅》中的《甫田》、《大田》是周人祭祀田祖叔均的诗篇,表现了周人对远古先祖的缅怀与崇敬。叔均应名"均","叔"是辈份的排序,不是周祖的长子,应有哥哥,这与牵牛(牛郎)有哥哥的情节相合。分析民国时期不同地区流传的六个主要采录本,再结合古代诗、词、赋、小说和戏曲来看,牛女故事也是最早流传于北方,应产生于西北。 相似文献
749.
GABRIEL PETERS 《Journal for the theory of social behaviour》2012,42(1):63-86
Many authors have argued that all studies of socially specific modalities of human action and experience depend on some form of “philosophical anthropology”, i.e. on a set of general assumptions about what human beings are like, assumptions without which the very diagnoses of the cultural and historical variability of concrete agents' practices would become impossible. Bourdieu was sensitive to that argument and, especially in the later phase of his career, attempted to make explicit how his historical‐sociological investigations presupposed and, at the same time, contributed to the elaboration of an “idea of the human being”. The article reconstructs Bourdieu's philosophical anthropology, starting with his genetic sociology of symbolic power, conceived as a form of critical theory (latu sensu), and concluding with an account of the conditio humana in which recognition (“symbolic capital”) appears as both the fundamental existential goal through which human agents strive to confer meaning on their lives and the source of the endless symbolic competition that keeps society moving. The agonistic vision of the social universe that grounds his sociological studies returns in his philosophical anthropology under the guise of a singular synthesis between Durkheim's thesis that “Society is God” and Sartre's idea that “hell is other people”. 相似文献
750.
Elizabeth A. Heron Cathal D. Walsh 《Journal of the Royal Statistical Society. Series C, Applied statistics》2008,57(1):25-42
Summary. Hip replacements rovide a means of achieving a higher quality of life for individuals who have, through aging or injury, accumulated damage to their natural joints. This is a very common operation, with over a million people a year benefiting from the procedure. The replacements themselves fail mainly as a result of the mechanical loosening of the components of the artificial joint due to damage accumulation. This damage accumulation consists of the initiation and growth of cracks in the bone cement which is used to fixate the replacement in the human body. The data come from laboratory experiments that are designed to assess the effectiveness of the bone cement in resisting damage. We examine the properties of the bone cement, with the aim being to estimate the effect that both observable and unobservable spatially varying factors have on causing crack initiation. To do this, an explicit model for the damage process is constructed taking into account the tension and compression at different locations in the specimens. A gamma random field is used to model any latent spatial factors that may be influential in crack initiation. Bayesian inference is carried out for the parameters of this field and related covariates by using Markov chain Monte Carlo techniques. 相似文献