Taub-NUT黑洞的统计熵

避开求解波动方程的困难,利用量子统计的方法,直接计算轴对称Taub-NUT黑洞背景下玻色场和费米场的配分函数.然后利用改进的砖墙方法——膜模型,计算黑洞背景下的玻色场和费米场的熵.计算表明,黑洞的熵与视界面积成正比的结论只有在薄膜的厚度远小于截断因子或两者为同阶无穷小时成立,当无穷小薄膜的厚度远大于无穷小截断因子时,黑洞的熵有一个对数发散项,黑洞熵不再与视界面积成正比.     

WORK AND THE CITY IN THE e-SOCIETY A critical investigation of the sociospatially situated character of economic production in the digital content industries in the UK

The aim of this paper is to ground debates about the 'new economy' or 'e-society' in the practice of individuals and companies producing 'new media'. The uncontroversial starting point is to question the generalization in much theorizing, and the tendency to technological reductive accounts of social and economic change. The focus here is to point to the intellectual sources of much policy in this field. The authors present case study material of three very specific parts of the new media/digital content industries (film special effects, computer games and web design). The paper concludes that both technological reductive and agentic accounts have underplayed the continuing importance of the social and economic embeddedness of production, and of the situated co-constitution of technologies, people and places. The differences between industries associated with labour processes, labour markets, users and markets for goods are highlighted. These particularities begin to offer more robust accounts of location and organization.     

The analysis of age-specific fertility patterns via logistic models

In this paper, we introduce logistic models to analyse fertility curves. The models are formulated as linear models of the log odds of fertility and are defined in terms of parameters that are interpreted as measures of level, location and shape of the fertility schedule. This parameterization is useful for the evaluation, and interpretation of fertility trends and projections of future period fertility. For a series of years, the proposed models admit a state-space formulation that allows a coherent joint estimation of parameters and forecasting. The main features of the models compared with other alternatives are the functional simplicity, the flexibility, and the interpretability of the parameters. These and other features are analysed in this paper using examples and theoretical results. Data from different countries are analysed, and to validate the logistic approach, we compare the goodness of fit of the new model against well-known alternatives; the analysis gives superior results in most developed countries.     

测字也是迷信

相信测字可以预知未来,就是迷信。但古代学人非职业性的测字,只是趣味性文字游戏。测字的手段拆字不是迷信,与抽签算卦等不完全相同,有一定的客观性、知识性。古书测字名例,都是文人编造的,不是真实的。迷信的测字,实际是以迷信的"心法"为据,用"字法"来附会。     

政策引导下企业跨区域迁移的演化博弈分析

采用演化博弈模型研究政策引导下的企业跨区域迁移行为,分析承接地政府和迁移企业的演化稳定策略(ESS).模型结果表明,迁移后获得持续增加的盈利空间、企业迁移成本、承接地政府的优惠政策以及迁出地和承接地环境规制力度的差别是影响企业迁移的重要因素;在不同的情境模式下,影响不同类型企业跨区域迁移行为的关键因素存在明显差异.在演化博弈分析的基础上,进而提出促进沿海企业向我国中西部地区有序迁移的政策建议.     

Gamers’ confidants: Massively Multiplayer Online Game participation and core networks in China

Through a survey of more than 18,000 participants in a Chinese Massively Multiplayer Online Game (MMOG), this study examines how the size and diversity of Chinese gamers’ core networks vary by individuals’ sociodemographic, socioeconomic and game-related characteristics. It represents the first study focusing exclusively on the gamer population and one of the most recent examining personal networks in contemporary China, home to over 560 million Internet users. We found that Chinese gamers have notably larger and more diverse core networks than those of major studies. Coplaying patterns and attachment to the game community contributed significantly to network size and diversity.     

从皮尔士到哈贝马斯的语用思考

回顾20世纪展望21世纪语用学理论的建构、发展及其未来走向,令国内外语言学界所关注.探讨语用学理论的哲学思想基础、语用学流派及其研究方法,特别是20世纪90年代以来出现的新语用推理机制,将展示语用学无限生命力及其跨学科的魅力.     

提高TiO2光催化降解性能的途径研究进展

TiO2半导体作为光催化剂降解难降解有机污染物有其独特的优势,它的光解效率与光量子效率有很大的关系.本文主要从提高光量子效率着手,用改变 TiO2的晶体结构、TiO2的晶体改性及外加物质辅助光催化等方法,分析提高光催化降解性能的途径.     

网络游戏外挂司法犯罪化的刑法规范解读

制售网络游戏外挂行为的司法犯罪化现象越来越普遍,而破坏计算机信息系统安全罪、非法经营罪和侵犯著作权罪是制售网络游戏外挂行为比较固定化的司法定性,但无论从技术的运行特征来看,还是从行为的违法性来分析,制售网络游戏外挂行为很难与现行刑法中某一具体犯罪的构成要件完全相吻合。事实上,网络游戏外挂是一种在未经软件著作权人许可的情况下,对原游戏程序的修改,从而增进游戏功能和效率的行为,而慎重适用刑法规范调整网络游戏外挂现象,既能最大限度实现非刑法制度的规范价值,又能更好地体现刑法保障性规范的谦抑性原则。     

模糊需求下供应链合作博弈的收益分配策略

研究一个由供应商、分销商和零售商组成的三级供应链在模糊需求环境下的合作博弈问题。将市场需求函数中的参数视为三角模糊变量,利用模糊截集理论,建立供应链成员在（S, D, R）型、（S,（D,R））型、（（S,D）,R）型以及（（S,D,R））型等不同情形下的合作博弈模型,并给出模型达到均衡时各参数模糊值的λ水平集。研究结果表明,当供应商、分销商和零售商组成大联盟体时,供应链系统的模糊收益达到最优。为使各成员的模糊收益在大联盟体中均取得改进,采用模糊Shapely值法来分配其模糊收益。最后通过数值算例对模型中的参数进行求解,并给出各成员的具体收益值。