浅议“车辆工程”专业的定位和培养目标

文章提出了“车辆工程”专业应在原有的“汽拖”和“汽运”专业的基础上充分融合发展，积极面向整个汽车产业链，办成一个跨学科的崭新专业，培养具有较强就业竞争力的复合型人才。     

传感器网络及其操作系统

介绍传感器网络的特点、网络配置和操作系统等几方面内容,指出存在主要问题,以便更好地开展相关研究工作.     

高压线路数据采集系统设计

介绍高压线路数据采集系统的硬件和软件设计。硬件部分介绍总体设计思路、电压电流采集电路和数据处理,软件部分给出主程序流程图。该系统的优越性能主要体现在嵌入式硬件模块化设计,应用多任务实时操作系统,以及在系统可编程等。     

Fuzzy Web ad selector based on Web usage mining

Internet and Web technologies are widely available, making it easier for companies to conduct business and transfer information to customers. Moreover, they speed up financial transactions efficiently, reducing the transaction costs of commercial activities that businesses would normally incur. So, Internet business has created a competitive environment, a successful company wanting to survive and gain a competitive advantage must provide an acceptable bundle of customized services that satisfy customers' needs. Despite the Internet's obvious benefits as a new communication medium its advertising gives the same advertising messages to all customers and so has suffered from poor responses. To raise a Web ad's effectiveness, we propose a Web ad selector that personalizes advertising messages for customers based on their preferences and interests. The Web ad selection system divides Web site customers with similar preferences into several segments through Web usage mining. It uses fuzzy rules that express customer segments' surfing patterns on the basis of expert advice, and recommends appropriate ads by fuzzy inference.     

移动计算中基于Rough Set的时间序列研究与应用

提出了基于Rough Set在移动计算环境中进行数据挖掘的系统模型，给出了进行数据挖掘的具体算法，介绍了由实时时态信息系统转换为时态信息系统的平均时间间隔方法，以及由时态信息系统转换为传统信息系统的增量分析方法，最后给出了实例和应用结果.     

ISSE在信息系统中的应用

ISSE是由NSA提出的一种为信息系统提供安全服务的系统工程。该文介绍了系统工程和ISSE，并阐述了在一个信息系统的设计与实现中如何运用ISSE。     

Sampled- and continuous-time passivity and stability of virtual environments

We propose a new time-domain passivity observer (PO) and passivity controller (PC) which removes the constant-velocity assumption during one sample time, which was used in our previous PO/PC approach. A new sampled-time definition of passivity is introduced, and this new definition is compared with the previous sampled-time definition of passivity. Through this comparison, we propose the more accurate PO/PC approach. The proposed new PO/PC approach is applied to the "Excalibur" haptic interface system with very high stiffness (K = 120 kN/spl middot/m) virtual environment, and stable contact is demonstrated.     

Combined extended and superimposed finite element method for cracks

A combination of the extended finite element method (XFEM) and the mesh superposition method (s‐version FEM) for modelling of stationary and growing cracks is presented. The near‐tip field is modelled by superimposed quarter point elements on an overlaid mesh and the rest of the discontinuity is implicitly described by a step function on partition of unity. The two displacement fields are matched through a transition region. The method can robustly deal with stationary crack and crack growth. It simplifies the numerical integration of the weak form in the Galerkin method as compared to the s‐version FEM. Numerical experiments are provided to demonstrate the effectiveness and robustness of the proposed method. Copyright © 2004 John Wiley & Sons, Ltd.     

A Biopsychosocial Model of Disordered Eating and the Pursuit of Muscularity in Adolescent Boys.

This review provides an evaluation of the correlates and/or risk factors associated with disordered eating and the pursuit of muscularity among adolescent boys. One of the main conclusions is that similar factors and processes are associated with both behavioral problems. Several factors found to be consistently associated with disordered eating among boys are also similar to those found with girls. These include body mass index, negative affect, self-esteem, perfectionism, drug use, perceived pressure to lose weight from parents and peers, and participation in sports that focus on leanness. However, as many of the findings have only been verified using cross-sectional designs, prospective studies are now needed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

夹杂物对粉末冶金高温合金力学性能的影响

综述了非金属夹杂物对粉末冶金镍基高温合金力学性能影响的研究现状,特别着重夹杂物尺寸、位置、形态、数量等对粉末冶金镍基高温合金低周疲劳寿命(LCF)的影响。文中提出粉末冶金高温合金存在的问题及今后的研究方向。