A Study On the Self- Expectation of Undergraduates and High School Students In Achievement Context

美国心理学家韦纳的归因理论认为学生会对自己学习的成功与失败进行原因归因，这种归因会引起情感及期望的改变，从而影响学习动机，进而影响成就行为。本论文以归因理论为切入口，通过自编的问卷详细调查与分析了大、中学生学习成败时的期望变化规律与特点，并提炼出了关于学习情境中的稳定性与成功期望的理论模型，同时在论文最后部分还就学生的现状提出了相应的对策。本次研究所得主要结论如下：1、不管是在意外成败情境还是在经常成败情境中，大学生与中学生都表现出高成功期望与高坚持性。2、大、中学生在各情境中所表现出的高成功期望与他们对成败的稳定原因与不稳定原因的归因高相关。3、在失败情境中，大学生对自己的学习能力、努力和学...Causal attribution theory of Bernard Weiner showed that students would ascribe their success and failure to some causes in achievement context, which would influence their sentiments and achievement expectation, and then influenced their motivation and the following behaviors of study. On the basis of causal attribution theory, this paper analyzed particularly the traits and laws of success or ...学位：教育学硕士院系专业：高等教育科学研究所_高等教育学学号：20021701

Modernizing the Personality of the College Students

社会的现代化呼唤人格的现代化。大学生作为未来社会发展的中坚力量 ,他们人格的状况将直接影响我国社会现代化的进程。从大学生人格现代化的必要性入手 ,探讨了大学生现代化人格的特征 ,并在此基础上提出了有关培养与塑造大学生现代化人格的方法与途径The modernization of the society calls for the modernization of personality. As the backbone of the development of the future society, the well being of the personality of the college students will exert a significant influence on the modernization process of the society. With the necessity being acknowledged, the characteristics of the modernization of the personality of students are analyzed and relevant approaches and measures are proposed

Study for the Anterior Capsule of Human Crystalline Lens with Nonlinear Finite Element Analysis

在临床试验获得的形态数据和物理数据的基础上,建立了连续环形撕囊后前囊膜的物理模型,利用非线性有限元分析法对撕开口大小与囊膜最大拉伸长度之间的关系进行了仿真计算。结果表明,随撕开口的增大,囊膜所能承受的最大拉伸长度显著增加,最大拉伸状态下的撕开口周长Cr与撕开口初始周长Cc的比值(Cr/Cc)也增大。该结论与实验研究的结论一致,表明前囊膜的可拉伸性能随着撕开口的增大而增大。进一步分析指出,拉伸时,撕开口边缘处外力作用的范围会显著影响最大拉伸长度:外力作用范围越大,囊膜所能承受的最大拉伸长度也就越大;增大幅度随作用范围的增加而减小。研究结果表明,仿真分析取得的结果与实验研究结果相符。Based on experimental data,a nonlinear finite element model of the anterior capsule was constructed to study the relationship between the diameter of continuous circular capsulorhexis(ccc) and the maximum extend of the anterior capsule by finite element analysis.Calculating results showed that the capsule could be extended larger by an external force as the diameter of CCC aperture increasing.This result is accord with the results of experimental studies on lens capsules of human body.Furthermore,simulation indicates that the contact area of the external force has a great influence on the max extend length: giving the same diameter of CCC,the capsule's extend length increasing as the contact area of the external force become larger.This result remains undiscovered in experimental studies.The current work demonstrates that simulation analysis is believed to be a promising,powerful tool in the field of biology medical engineering.国家自然科学基金资助项目(60371012);; 福建省科技重点项目(2002Y021

前瞻我国研究型大学的师资队伍建设

在高校的构成中,教师是一个最重要组成部分。目前,我国正处在建立研究型大学的起步阶段,通过研究美国著名研究型大学师资队伍建设的成功经验,在此基础上根据我国政治经济环境并结合高校实际,提出有“中国特色”的师资队伍建设策略,对促进我国研究型大学的跨越发展具有前瞻性意义

Research of automatic steering control system on agricultural machinery based on variable damping ratio control by fuzzy PID

为提高农机自动转向过程中的动态性能,提出一种模糊PID变阻尼控制方法。首先,针对电控液压式农机自动转向控制系统,建立统一的二阶系统模型。然后,基于该控制方法设计模糊PID变阻尼控制器,能够通过在线调整反馈通道增益,达到改变系统阻尼比的目的。最后,与传统PID控制方法进行对比实验。实验结果表明,该方法能够显著降低系统的超调和振荡,提高农机自动转向控制过程中的转向快速性和稳定性

Modeling and Simulating of Human Crystalline Lens

组织器官的建模仿真是生物医学工程研究的热点,人眼作为人体最重要的感觉器官之一,对其组成部分的建模与仿真研究具有重要的意义,而晶状体仿真模型的建立是“国人虚拟眼”研究的重要组成部分。论述了国内外人眼晶状体建模仿真研究现状,讨论了建模研究中几何建模与物理建模两大关键技术的研究方法及其发展趋势,为进一步开展晶状体的建模仿真研究打下基础。The modeling and simulating of human tissues and organs is an attractive field in biological medical engineering. Human eye is one of the most important sense organ so it is significant to study its parts by simulating method. The researches on the field of modeling and simulating the human crystalline lens wer reviewed and the two key technologies, e.g. geometry modeling and physical modeling were discussed, including their current studies and developing trend. At last, a brief comment of future development on the study of the lens was given.国家自然基金项目(60371012);; 卫生部科学研究基金—福建省卫生教育联合攻关计划项目(WKJ2005-2-001);; 厦门市科技计划项目(3502Z20041044

A Dynamic Mass Spring Model for Simulation of Soft Tissue Deformation

针对可以用面模型近似表示的软组织,提出一种简单可靠的软组织变形仿真的质点弹簧建模方法。虚拟体弹簧动态地产生一种约束力表现软体的体特征,准静态方法求解模型使仿真效果更好;用修改的蝶形细分方法把比较粗糙的表面网格模型先细分成若干细节层次,仿真时依质点所受力的大小动态细分,以提高模型仿真的精确度。实验表明:所提出的方法确实增强了软组织变形仿真的体积感;局部动态细分模型与粗网格模型的计算量相差甚少,但其计算精度却提高多倍。A simple and reliable mass spring modeling method was proposed,which is adapted to the simulation of the soft tissue that can be approximately represented by surface mesh.The concept of virtual volumetric spring was introduced for simulating volumetric information of the soft tissue first.Then a dynamic local subdivision method was given to improve the simulation precision,which is based on the modified butterfly subdivision algorithm and processed on two-stage offline and online.In the offline stage,the base mesh was subdivided into some level of detail meshes.On simulating the online stage,the local subdivision mesh was generated according to some criteria such as stress strength.The experiment results show that the presented method enhances indeed the sense of volume for soft tissue deformation in real time simulation.The computation cost of the local subdivision model is almost the same as the initial coarser model but performs higher computational precision.国家自然科学基金(60371012);; 福建省科技重点项目(2002Y021);; 厦门市科技计划重点项目(3502Z20041044

Automatic line-aligning sensing device for corn combined harvester and automatic line alignment method

本发明属于农业智能装备领域，具体地说是一种玉米联合收割机自动对行传感装置及自动对行方法，包括传感器模块及安装固定单元、控制器和与其分别连接的对行信号采集节点、转向控制器，该传感器模块通过安装固定单元安装在玉米联合收割机上，传感器模块包括角度传感器、上盖、扭簧、支撑底座、转轴、固定板及探测杆。方法为玉米植株触碰偏离作物行的玉米收割机上探测杆的自由端，对行信号采集节点连接传感器实时采集角度信号输出给控制器，控制器根据接收的角度信号计算收割机的车轮转向角度，并通过玉米联合收割机的转向控制器控制电液比例阀控制车轮转向、自动对行。本发明实现了玉米收割机的自动对行，保证了玉米收割机沿着玉米作物行进行收割

Automatic line-aligning sensing device for corn combined harvester and automatic line alignment method

本发明属于农业智能装备领域，具体地说是一种玉米联合收割机自动对行传感装置及自动对行方法，包括传感器模块及安装固定单元、控制器和与其分别连接的对行信号采集节点、转向控制器，该传感器模块通过安装固定单元安装在玉米联合收割机上，传感器模块包括角度传感器、上盖、扭簧、支撑底座、转轴、固定板及探测杆。方法为玉米植株触碰偏离作物行的玉米收割机上探测杆的自由端，对行信号采集节点连接传感器实时采集角度信号输出给控制器，控制器根据接收的角度信号计算收割机的车轮转向角度，并通过玉米联合收割机的转向控制器控制电液比例阀控制车轮转向、自动对行。本发明实现了玉米收割机的自动对行，保证了玉米收割机沿着玉米作物行进行收割