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。     

基于供应链信息集成的VMI系统构建及其绩效研究

探讨了企业如何构建有效的VMI信息系统，介绍了采纳VMI战略对各方所造成的利益变动情况。分析结果可作为实施VMI战略时企业间如何进行利益协调的参考。     

Influence of hydrogen content on the behavior of grain reflnement in hypereutectic aluminum-silicon alloy

Dissolved hydrogen is harmful to mechanical properties of refined hypereutectic aluminum-silicon alloys. In the present work, by using a stepped-form mold and the hydrogen-detecting instrument HYSCANⅡ, the relationship between the initial hydrogen content in the melt and the refinement effect on the casting of hypereutectic aluminum-silicon alloy was investigated. The experimental results show that the cooling rate, the hydrogen content and the grain refinement effect are three interactive factors. When the hydrogen content is above 0.20 mL/100 g and the cooling rate is lower than that in 50 mm-thick step, hydrogen dissolved in the alloy melt influences the grain refinement effect. With increasing the cooling rate, the critical hydrogen content increases too. It is expected that much hydrogen in the melt make the net interfacial energy larger than or equal to zero, resulting in the shielding of the particles A1P during solidification and that the critical gas content is closely related to the critical     

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)     

交换式以太网的计算机建模与仿真

文章在对以太网原理和运行机制以及交换式以太网工作原理深入研究的基础上,对交换式以太网系统进行了基于传输层的模型抽象,采用面向事件的模拟仿真建模方法定义网络实体以及相关事件,并且将仿真结果与实测数据进行了对比。     

基于CCM技术的开放式数控系统组件实现

通过对组件技术和RTCORBA技术的研究分析，提出了一种开放式数控系统体系结构。遵循CCM（CORBA Component Model）规范，详细阐述了体系结构中组件的功能定义。基于CORBA IDL（Interface Definition Language）语言给出了组件定义及实现，并在TAO（The ACE ORB）环境下进行了应用开发。满足了开放式数控系统高度模块化、分布式控制的需要。     

Evolutionary authoring tool for adaptive hypermedia with multimodal navigation

This paper discusses the importance of user adaptation and software evolution in hypermedia applications, and reviews some of the most relevant approaches to both fields. The paper describes a model that has been conceived for the development, maintenance and navigation of adaptive hypermedia systems. This model, called SEMantic, systemic and evolutionary model to develop HyPermedia systems (SEM-HP), includes an incremental design process, a layered architecture and an authoring tool integrated with a navigation tool. SEM-HP architecture is composed of four subsystems, which allow the separation of aspects related to knowledge representation, presentation, navigation and user adaptation. In addition, SEM-HP has a higher layer, which acts as a meta-system and allows a consistent evolution of the elements defined in each of the four subsystems, as well as their automatic co-evolution. Regarding user interaction, four alternative ways of navigating hypermedia information are supported. Finally, the paper shows the main results of two case studies carried out with the authoring and navigation tool, JSEM-HP, at the University of Granada, Spain.     

浅析如何加强水利工程水闸的安全管理

水闸作为水利工程中最重要的基础建筑设施，具有资源调配、防洪、灌溉等功能。本文介绍了如何加强水利工程安全管理的方法，希望为水利工程建设做出贡献。