陕西省优秀跆拳道运动员力量测试与分析

采用ISOMED2000获得陕西省优秀跆拳道运动员膝关节等速向心收缩的生物力学特征。跆拳道运动员右膝的力量与爆发力强于左膝,建议加强左膝屈伸肌群的力量练习与训练中的实战进攻训练;建议以300°/s伸小腿,可以发挥小腿伸肌群的爆发能力。     

偏磨套管的剩余抗挤能力研究

套管发生偏磨后,改变了原有的受力形式,将对其抗挤强度产生严重的影响。本文建立了偏磨套管分析的力学模型,应用曲杆理论导出了偏磨套管剩余抗挤能力的计算公式。通过与有限元数值计算结果对比表明,所得计算公式是可靠的。利用该公式可以快速而又准确地计算出偏磨套管的剩余抗挤强度,其具有较大的实用价值。同时研究了偏磨套管的剩余抗挤强度与套管相对磨损量的关系,结果表明,套管发生磨损后显著地降低了其抗挤强度。     

论农村集体成员身份和土地产权相对分离 ——以成员土地资格权的收回或转让及继承为视角

研究目的：从土地产权收回、转让和继承,探究集体成员身份与产权相对分离理论及制定面向未来的农村集体经济组织法。研究方法：规范分析法,实地调查法。研究结果：社会保障在城乡一体,集体成员身份保障功能在弱化,让农民工带财产进城需产权和身份分离,新型利益冲突需立法调控。研究结论：新型身份和产权关系应以农为本,逐步分离产权和身份绝对的绑定关系;土地经营权人可成为新社员和有偿使用宅基地;因入公职而离社,个人的由家庭共享,全家离社的承包地收回,宅基地保留与否视住房保障;宅基地资格权可为市民继承和转让,避免为占地新建闲置房;有农技的可优先继承股份和承包地;全家出国的,收回其土地产权;退休或恢复国籍回乡,可有偿使用宅基地。     

Risk preference and indirect utility in portfolio-choice problems

We consider a portfolio-choice problem with one risky and one safe asset, where the utility function exhibits decreasing absolute risk aversion (DARA). We show that the indirect utility function of the portfolio-choice problem need not exhibit DARA. However, if the (optimal) marginal propensity to invest is positive for both assets, which is true when the utility function exhibits nondecreasing relative risk aversion, then the DARA property is carried over from the direct to the indirect utility function.     

振兴东北经济的税收政策思考

自2004年振兴东北的序幕拉开至今,国家对东北地区出台了一系列税收优惠政策,通过对税收政策的归类、分析表明,诸项税收优惠政策中照顾性多、激励性、导向性的极少,鉴于此根据比较优势理论重新审视东北地区的优势产业,以此理顺税收激励政策.     

促进西部资源开发的财税政策

实施西部大开发战略，促进西部经济发展，发挥西部地区比较经济优势是关键。而比较优势的发挥，有赖于政府通过各种财税政策进行扶持。改善基础设施，营造良好的投资环境；加快增值税转型；赋予西部地区适度的税收立法权，这些政策对西部经济发展将发挥重要作用。     

The influence of brand personality and relative brand identification on brand loyalty in the European mobile phone market

This study investigates the influence of brand personality on consumer loyalty and the moderating role of relative brand identification for multiple brands in the same product category. Survey data were collected from 1,651 respondents in the United Kingdom, France, and Germany. Results indicate that dimensions of brand personality that are positively associated with consumer brand loyalty vary across brands in the mobile phone category. Furthermore, relative brand identification not only positively affects consumer loyalty, it also moderates the relationship between brand personality and consumer loyalty. Copyright © 2015 ASAC. Published by John Wiley & Sons, Ltd.     

MEASURING DISTRIBUTION MODEL RISK

We propose to interpret distribution model risk as sensitivity of expected loss to changes in the risk factor distribution, and to measure the distribution model risk of a portfolio by the maximum expected loss over a set of plausible distributions defined in terms of some divergence from an estimated distribution. The divergence may be relative entropy or another f‐divergence or Bregman distance. We use the theory of minimizing convex integral functionals under moment constraints to give formulae for the calculation of distribution model risk and to explicitly determine the worst case distribution from the set of plausible distributions. We also evaluate related risk measures describing divergence preferences.     

Political implications of Chinese tourism policy

This study is an examination of the political objectives and probable consequences of the decision to open the People's Republic of China to mass tourism. Through personal interviews and other reports, this article traces the organizational and political dimensions of the abrupt reversal of nearly three decades of restricted and selective foreign access. The author found several anomalies: more “market” oriented cost structure than in most non- socialist developing nations; a hierarchy of tourist classes in a supposedly classless society; liberalization in tourism itineraries along with a freezing of contacts between tourist and Chinese. The article concludes that while China has reaped few tangible political benefits and has incurred some new political vulnerability with its new tourism policy, Chinese tourism has avoided many of the social and economic costs associated with tourism development elsewhere.     

关于互不相关两动点相对加速度问题的探讨

文章对互不相关两动点的相对运动问题,提出了新的看法,并给出了两动点相对加速度的计算方法和计算通式。