目标函数的埃尔米特插值技术

构建了2维埃尔米特插值多项式,对分片埃尔米特插值多项式进行了实例验证。     

可持续发展决策支持系统开发与应用

讨论了发展中国家可持续发展问题的特征 ,为开发和应用决策支持系统辅助发展中国家可持续发展问题的决策 ,给出了构造可持续发展决策支持系统的策略、可持续发展问题模型化的表示方法、开发定义可持续发展问题的非过程性语言的方法和基于定理证明的数值计算与非数值计算     

大学生阅读心理浅析

本文从高校图书馆的工作实际,对大学生读者阅读的特点、目的和动机及阅读兴趣、阅读需求进行了分析,对于正确引导大学生读者有效利用图书馆阅读有所裨益。     

1981—1998期刊管理自动化研究的统计分析

通过对１９８１－１９９８年间我国期刊管理自动化研究论文的统计和定量分析,笔者认为：该领域的研究已进入快速发展阶段;研究论文主要集中于图书情报类刊物,论文合著率明显提高,但多产作者校少;综合性论文居多。     

EMP径向滑动轴承热弹流分析与仿真

Elastic metal plastic (EMP) journal bearing is a kind of original bearing. Because of the specialty of the composite materials, elastic and thermal deformations of the EMP bush are much larger than that of common metal bush. In this paper, the three-dimensional mathematical model is established to analyze thermo-elasto-hydrodynamics (TEHD) of EMP. The numerical TEHD analysis software is programmed. An example is given to prove the lubrication performance of EMP. Supported by the National Natural Science Foundation of China (59775037)     

弧面分度凸轮机构的分析与设计

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应用随机模拟试验解决三类标准秘书问题

设经理要从一批应聘者中录用一名秘书，以Xn,yn，（n=1，2，…，N）表示n个面试者的绝对名次、相对名次，试确定最优策略τ．本文根据国内外目前对秘书问题的研究成果，运用随机分析，最优停止理论等工具、采用随机模拟试验的办法，对三类标准秘书问题建立了一个适于计算机操作的控制系统．     

对大学生心理健康及教育问题的探讨

随着社会的发展,生活节奏的加快,人们的心理负荷逐渐加重,大学生的心理健康状况令人担忧.如何正确认识心理健康问题,对大学生进行良好的心理健康教育,很值得探讨．     

典型矮塔斜拉桥地震风险概率评估方法研究

鉴于矮塔斜拉桥受力性能的特殊性,引入增量动力分析（IDA）和拉丁超立方体抽样（LHS）评估该结构在地震激励下发生损伤的风险概率。首先采用LHS考虑桥梁构件材料的随机性,与事先选取的地震波相结合形成桥梁-地震动样本集合;其次在确定桥梁有限元模型主要构件损伤指标的基础上采用基于蒙特卡罗（MC）抽样的IDA进行地震易损性分析和地震风险概率评估。为验证方法的正确性和有效性,对一预应力混凝土独塔双索面矮塔斜拉桥结构模型进行地震风险概率评估,结果表明:该方法既充分考虑了材料和地震输入双重随机性又避免了繁琐的积分过程,同时也提高了工程计算的效率及精度。     

A Person-Centered Approach to Students' Evaluations of Perceived Fear Appeals and Their Association With Engagement

A person-centered approach was employed to investigate how students' evaluation of perceived teacher utility value messages, i.e., fear appeals, as a threat and as a challenge, combined within individuals and how these combinations related to student engagement. Two studies were conducted with students in their final two years of secondary education. Empirically distinct clusters emerged at two time points in the academic year. Evaluating the message in the fear appeal at a higher level of challenge than threat was beneficial. Unexpectedly, high threat was associated with high engagement, as long as high challenge was also present, however, this combination was also related to high emotional disaffection. Moderate threat combined with moderate challenge had the most detrimental relationship with student engagement. Educational interventions should aim to increase the likelihood of a challenge evaluation.