钢箱梁初步设计近似公式研究

箱型钢梁是薄壁结构,理论上应使用板壳元素为分析元素较能反映实际的受力及变形。为有效进行设计与分析,已有多种商业软件,但是在确定分析元素与分析的前置作业也相当繁杂费时,而造成初步设计的困难。因此如何利用平板力学相关理论推导箱型钢梁受力变形近似公式将可帮助箱型钢梁设计者减少非必要的工作负担。本文的探讨方法是将箱型钢梁上翼板变形分为上翼板与腹板交界处变形及上翼板变形这两种变形的迭加,进而推导出近似公式。直线型式等截面简支箱型钢梁分别用有限元软件SAP2000和近似公式计算进行准确度的比较,误差百分比尚在初步设计的容许误差范围内。     

美国陪审制的功能与作用

由陪审团审判是美国宪法规定的一项重要的权利,陪审制在美国司法制度中有着举足轻重的地位。美国的陪审团分为大、小陪审团两种,它们在实际运作过程中既承担着民主政治的功能,也体现了保障公众参与司法、尊重当事人的程序性选择权、推进完善证据规则等法律制度功能。并且陪审制的良好运用,对律师用有激励作用,对法官有制约作用,对社会则可起到缓和、抚慰作用。     

论江泽民对“人的全面发展思想”的继承和发展

人的全面发展思想是马克思主义的重要内容。本文就江泽民同志关于“人的全面发展是社会主义的本质要求”的论断、现阶段人的全面发展目标以及实现的途径和手段等方面作一些探讨     

The research pendulum: multiple roles and responsibilities as a researcher

Qualitative research on sexual identities has highlighted the use of oral narratives to understand the lives of lesbians and gay men. Feminist ethnographers, sociologists and queer theorists have further posed methodological inquiries to the issues of insider/outsider, the possibilities of an erotic subject and the matter of representation. Using interview data with Hong Kong lesbians, this paper discusses a researcher's multiple positionalities and its effects on both the researched and the researcher. Being self-reflexive requires a researcher to test her or his own boundaries and to take up social responsibilities as the interpreter of texts. This paper calls for further dialogue between a researcher's subject positions, research processes and the final presentation of findings. doi:10.1300/J155v10n03_02.     

把高校建成传播先进文化的坚强阵地

如何才能把高校建成传播先进文化的坚强阵地,这既是一个理论问题,也是一个实践问题.首先,必须深刻认识高校文化建设的战略意义,始终坚持先进文化发展的前进方向.其次,必须抓住关键,发挥学生的主体作用和教师的主导作用.同时,必须加强领导,齐抓共管,课堂内外,全面渗透,从而营造具有浓厚文化氛围的育人环境,使高校成为传播先进文化的坚强阵地.     

Zone control charts with estimated parameters for detecting prespecified changes in linear profiles

ABSTRACT

In profile monitoring, control charts are proposed to detect unanticipated changes, and it is usually assumed that the in-control parameters are known. However, due to the characteristics of a system or process, the prespecified changes would appear in the process. Moreover, in most applications, the in-control parameters are usually unknown. To overcome these issues, we develop the zone control charts with estimated parameters to detect small shifts of these prespecified changes. The effects of estimation error have been investigated on the performance of the proposed charts. To account for the practitioner-to-practitioner variability, the expected average run length (ARL) and the standard deviation of the average run length (SDARL) is used as the performance metrics. Our results show that the estimation error results in the significant variation in the ARL distribution. Furthermore, in order to adequately reduce the variability, more phase I samples are required in terms of the SDARL metric than that in terms of the expected ARL metric. In addition, more observations on each sampled profile are suggested to improve the charts' performance, especially for small phase I sample sizes. Finally, an illustrative example is given to show the performance of the proposed zone control charts.     

转移支付制度的国际比较与借鉴

如何建立规范的财政转移支付制度,是当前进一步完善分税制财政体制的重大问题。借鉴发达国家财政转移支付制度的有益做法,结合我国实际,笔者认为,今后完善转移支付制度重点应放在转移支付目标的确定、补助方式的选择及制度的规范化等方面     

论高校少数民族学生宗教信仰与民族团结的关系——以包头师范学院为例

多元化时代的高校,宗教信仰以其较强的心理慰藉功能和行善避恶的教义吸引着大多数少数民族学生,他们活跃于校园的每一个角落,以宗教的核心理念参与校园民族团结建设,在一定程度上推动了校园民族团结.     

传媒业与高校的产学合作模式

随着媒体间竞争的激烈,媒体不仅整合内部资源,增强竞争能力,还要整合外部资源,快速成长。媒体在寻求外部发展空间的过程中,逐渐认识到高校的资源在传媒业发展中的作用,通过各种形式与高校建立战略性联盟,为自身的发展提供智力支持。高校在践行社会服务的使命中,也需要传媒业这样的操作平台实现智力与人才资源的落地。目前,传媒业与高校产学合作主要有人才培养型、项目咨询型、联合研发型、共建实体型、产业园区型五种模式。促进传媒业与高校产学合作性运转,必须建立产学合作的预评估机制,建立规范有序的政策机制、紧密的管理机制和科学的评价体系。