基于鲁棒二次稳定性理论的状态观测器增益矩阵求法

针对具有定子电阻不确定参数的电机模型，设计了全阶自适应状态观测器，运用具有定子电阻参数不确定系统的二次稳定性理论，推导出转子速度的自适应辨识率，同时将定子电阻和速度视作不确定参数，利用LMI工具箱中求解不确定参数系统二次稳定性的方法，得到状态观测器的增益矩阵来保证整个系统在全速度范围内的稳定运行。此方法计算量小，易满足实时性控制要求。仿真结果表明，基于鲁棒二次稳定性理论求出状态观测器增益矩阵能保证系统在全速度范围内的稳定运行，并且可抑制定子电阻不确定性对速度辨识的影响，具有很好的鲁棒性能。     

水工混凝土结构损伤识别软件的开发与应用

在水工混凝土结构损伤识别理论的基础上．利用多语言编程技术（C＋＋＆Fortran）开发了界面友好、使用方便的损伤识别软件。应用软件对理论模型和试验模型进行识别。得到了很好的识别结果。     

互见中船舶的不协调行为

驾驶员操船行为的不协调是造成海难事故的重要因素之一。结合实例,阐述了互见中船舶不协调行为对航行安全的危害、产生原因以及各种预防措施。     

Reintroducing attitude theory in travel behavior research: The validity of an interactive interview procedure to predict car use

A methodological challenge is to develop methods which satisfy the need in transport planning of accurately forecasting travel behavior. Drawing on a review of the current state of attitude theory, it is argued that successfully forecasting travel behavior relies on a distinction between planned, habitual, and impulsive travel. Empirical illustrations are provided in the form of stated-response data from two experiments investigating the validity of an interactive interview procedure to predict household car use for different types of trips, either before or after participants were required to reduce use.     

PATERNITY IDENTIFICATION ON ABORTED FETAL MATERIAL

ＰＡＴＥＲＮＩＴＹＩＤＥＮＴＩＦＩＣＡＴＩＯＮＯＮＡＢＯＲＴＥＤＦＥＴＡＬＭＡＴＥＲＩＡＬＬｉＳｈｅｎｇｂｉｎ；ＬｉＸｉａｏｍｉｎｇ；（ＤｅｐａｒｔｍｅａｔｏｆＦｏｒｅｎｓｉｃＭｅｄｉｃｉｎｅ，Ｘｉ＇ａｎＭｅｄｉｃａｌＵｎｉｖｅｒｓｉｔｙ，Ｘｉ＇ａｎ...     

AIS信息与驾驶台信息过载

AIS信息显示与航行安全有一定的联系。船载AIS安装后，驾驶台信息数量的增多将增加驾驶员对目标信息进行分析判断的难度；AIS与已有的驾驶台信息系统性能标准的不统一以及综合显示的问题将在一定程度上加剧驾驶台信息过载的程度。     

射频识别技术应用构想

介绍射频识别技术及其应用现状,对船舶识别及管理应用前景等方面,提出了船舶自动识别物流系统应用的构想,并分析其关键技术。     

Application of ML to System Identification for Underwater Vehicle

In this paper, maximum-likelihood (ML) and its relaxation algorithm, which are used to identify the mathematicsmodel of an underwater vehicle(UV), arc discussed. With the trial data of zigzag tests, the hydrodynamic derivatives of theUV were estimated, and the relaxation algorithm is confirmed to have better astringency from the contrast between the twomethods.Then a simulation environment based on these parameters is established to verify the validity and effect of these meth-ods. The result shows the model is credible and the methods are very useful for the research of maneuverability and adaptivecontrol of underwater vehicles.