基于自组织理论的互联网金融研究

通过外部负熵流、序参量和涨落机制的引入,互联网金融系统的自组织功能得到了增强,而自组织功能是金融系统从无序走向有序,从低级有序发展为高级有序的内在作用机制和关键影响因素。     

项目管理教学中学生整合思维能力的培养探索

本文将整合思维定义为批判性思维、创造性思维、系统性思维三位一体的思维,并分别探讨了在项目管理课程教学中如何培养大学生的创造性思维、批判性思维和系统性思维能力的问题。     

思想政治教育制度化建设的思考

思想政治教育制度化建设就是使制度与思想政治教育结合,促进人们思想德行的形成。它的主要功能体现在教育和引导、保障和规范、教育成本的节约等方面。当前,我国思想政治教育的制度化建设工作既有着良好的发展机遇,又面临严峻的挑战。我们探索思想政治教育制度化建设的方法与途径,主要应从教育活动运行制度化、教育程序监督制度化、教育决策制度化、教育保障制度化、教育奖惩制度化等方面进行,并不断加以总结,共同发挥思想政治教育的重要功能。     

陀螺转子随载体的进动对末制导炮弹弹道影响

以往将末制导炮弹视为由弹体以及惯导陀螺组成的两刚体系统,以分析陀螺动力学特性对弹体弹道特性的影响,而忽略弹体运动对惯导陀螺转子定向性的作用。为了确定惯导陀螺转子定向性对弹道特性产生的影响,通过计算运载体传递到内、外框架的作用力矩,得到陀螺转子进动角速度模型,对末制导炮弹惯导飞行增程段弹道进行仿真,分析得到转子在空间的运动并非具有定轴性,而是会产生一定的偏转,且陀螺转子进动对弹道特性产生一定影响的结论。     

基于特征矢量稀疏分解的非圆信号DOA估计

文中提出当信源为非圆信号时,基于特征矢量稀疏分解进行DOA估计;并在稀疏恢复过程中,比较空间范数变化对误差的影响.该方法对协方差矩阵进行了扩展,在利用L曲线方法自适应得到正则化参数的同时,对空间范数应用进行了推广.不仅提高信息利用率,能够处理相干信号源,而且不需要已知信号源数目,性能优于平滑处理过后的NC-MUSIC算法.     

VDS-A01客车前空气悬架参数计算

以VDS-A01客车前空气悬架为研究对象,充分考虑了其他系统和外界条件对悬架计算结果精度的影响,计算了前空气悬架的刚度、固有频率和侧倾刚度,计算结果与实验结果相对偏差在3％以内,计算结果满足设计要求.该参数计算方法对客车空气悬架开发与设计具有良好的借鉴意义.     

Experimental study on calculation of hydro-geological parameters for unsteady flow

After the linear analytical method of unsteady flow theory is further improved, an innovative and faster algorithm is introduced. The water storage in a confined aquifer is derived from the water transmissivity coefficient and the water-pressure conductivity coefficient. The water transmissivity coefficient is approximated by a Taylorseries expansion of drawdown, and the water-pressure conductivity coefficient is obtained by the average drawdown. In this algorithm, the distance of the observation points from the pumping well must be short. When the distance is as short as the radius of the main pumping well, the data of the drawdown difference between the sidewall and the center of pumping well are difficult to measure, but the same results can be achieved based on the assumption that the drawdown difference approximates to the drawdown of the observation wells at a radial distance from the pumping well according to the algorithm. Without the help of charts, this algorithm is more concise and efficient, which has been verified by the test of water pumping project in Tianjin Binhai International Airport.     

The role of parents in young people’s education—a critical review of the causal evidence

There is currently a considerable body of research suggesting that parental involvement is linked to young people’s attainment at school. It is also generally agreed that a number of factors such as parental background, attention, warmth and parenting style are associated with children’s later life outcomes. However, although widely assumed on the basis of these associations, the nature of this causal link has not yet been established. This paper summarises what would be needed to demonstrate that enhanced parental involvement produced better attainment and other outcomes, based on establishing an association, the correct sequence of events, sensitivity to intervention and an explanatory mechanism. It then reports on the findings of a systematic review of available and relevant studies, based on this approach. The search for evidence on the impact of attitudes, expectations and behaviour on attainment yielded 1,008 distinct reports. Of these, 77 were directly about the impact of parental involvement. These confirm that parental involvement and attainment are linked, and in the correct sequence for a causal model. There are several plausible mechanisms to explain why parental involvement might have an impact. And most crucially and unlike all other areas linking attitudes and behaviour to attainment, there is promising evidence that intervening to improve parental involvement could be effective.     

Classroom dialogue: a systematic review across four decades of research

Recognizing that empirical research into classroom dialogue has been conducted for about 40?years, a review is reported of 225 studies published between 1972 and 2011. The studies were identified through systematic search of electronic databases and scrutiny of publication reference lists. They focus on classroom dialogue in primary and secondary classrooms, covering the full age range of compulsory schooling. The methods of data collection and analysis used in the studies are described and discussed, with changes and continuities over time highlighted. Study results are then summarized and integrated to present a succinct picture of what is currently known and where future research might profitably be directed. One key message is that much more is known about how classroom dialogue is organized than about whether certain modes of organization are more beneficial than others. Moreover, epistemological and methodological change may be required if the situation is to be remedied.     

Relational maintenance behaviors in the sibling relationship

Beatty, McCroskey, and Heisel (1998) argue that a limitation of current intervention research on communication apprehension is that the experimental designs employed in this research have failed to take into account the effects of testing on participants, among other things. To address this issue, this study employed a Solomon Four‐Group Design, which controls for testing effects, to examine whether systematic desensitization, a widely used procedure for reducing communication apprehension, would reduce communication apprehension beyond the level attributable to repeated testing. These data indicate that systematic desensitization produced a significant reduction in communication apprehension that cannot be explained by “testing effects.” The paper concludes with a discussion of the implications of these findings.