具有线性输出结构的非线性系统故障诊断和容错控制

研究了一类具有线性输出结构的非线性系统故障诊断和容错控制,利用自适应观测器来构造线性残差,同时构造李亚普诺夫函数,使其一阶导数为负来得到故障估计值,容错控制部分设计了2个自适应观测器,通过控制器重组使故障发生后的系统输出跟踪原系统输出.理论分析和仿真结果证明了该方法的有效性.     

The Role of Survey Data in Nowcasting Euro Area GDP Growth

This paper evaluates the impact of new releases of financial, real activity and survey data on nowcasting euro area gross domestic product (GDP). We show that all three data categories positively impact on the accuracy of GDP nowcasts, whereby the effect is largest in the case of real activity data. When treating variables as if they were all published at the same time and without any time lag, financial series lose all their significance, while survey data remain an important ingredient for the nowcasting exercise. The subsequent analysis shows that the sectoral coverage of survey data, which is broader than that of timely available real activity data, as well as their information content stemming from questions focusing on agents' expectations, are the main sources of the ‘genuine’ predictive power of survey data. When the forecast period is restricted to the 2008–09 financial crisis, the main change is an enhanced forecasting role for financial data. Copyright © 2015 John Wiley & Sons, Ltd.     

样条子域法在桥头搭板内力分析中的应用

对具有一边简支支承的部分悬空，部分支承在温克勒弹怀地基上的板作为整体式桥头搭板的力学计算模型，采用样条子域法建立了桥头搭板内力计算的基本公式，并编制了计算程序。     

试析CGT模式与专科学生语言应用能力的提高

文章介绍了CGT英语教学模式 ,即控制学习、小组练习、语篇重建活动 ,并从三个方面论述了此模式有助于英语应用能力的提高     

分子轨道近似在八面体共价晶体中3d过渡金属离子轨道角动量和旋—轨耦合中的

用分子轨道近似推导了3d过渡金属离子在八面体晶体中轨道角动量和旋－轨耦合矩阵，同时得到了这些矩阵元与3d离子在纯晶体场近似下的矩阵之间的关系。通过以上矩阵元和关系可以很容易地计算3d离子在八面体晶体中的旋－轨、自旋－自旋和塞曼作用矩阵。     

一般Lurie型直接控制系统绝对稳定的充分条件

本文利用大系统的分解方法，给出一般Ｌｕｒｉｅ型直接系统绝对稳定的几个充分条件。     

论两岸交流中的政治文化差异：寻异求同的视角

文化差异是一把双刃剑，既能促进两岸文化的交流与融合，同时也能起阻碍作用，而政治层面的文化差异则是两岸文化交流与融合的最大障碍；化异求同，坚持“一个中国”的政治文化认同，是两岸政治文化交流与融合的根本路径；“厦金模式”能够成为两岸政治文化交流与融合的先行先试模式。     

HIs classification in HCR model for operator reliability study of nuclear power plants

The human cognition reliability model is used to study time-related human response interaction (HI). The classification of HI types is an important base. At present, the two types of HIS classification (i.e. SRK classification and CP classification) are based on subjective or objective characteristics respectively by which some phenomena can be hardly explained. Since the types were limited, they could not meet the requirements. The integrate approach of HIs classification is compatible with the original methods, and HIs are classified according to subjective and objective characteristics. The integrate approach contains more detailed types and has higher precision. It is more advantageous and convenient for the classification of HIs. The integrate approach has been used in the study of operator reliability for nuclear power plants in China. The results were satisfactory, and by which the integrate approach was verified.     

幸福感：大学生成长的重要因素

培养幸福感实质上是一种幸福教育。培养大学生的幸福感是必要的，对于大学生的德育、心理健康、学业发展、社会化等意义重大。可以从大学生人格教育和塑造，自我期待和社会期待的统一，学校良好氛围的营造等途径来培养大学生的幸福感。