消息传输中间件JWMQ原理和应用

为保障信息交换的可靠性和应用接口的简单性,中间件技术可以为应用提供简单的消息传输接口,并在接口内部实现了断电续传、消息路由、消息转发、传输监控和数据加密等功能.大量的实际应用表明,JWMQ的应用可简化应用实现的复杂性,增强系统的模块化,提高数据传输的可靠性,具有较好的社会和商业应用价值.     

整体式悬挑结构与岩土共同作用研究

介绍了一种山区道路拓宽技术——整体式悬挑结构,运用有限元软件数值模拟了岩土对荷载的响应,提出了其简化计算方法；用visual c++编写了一种适用于该结构的计算程序,对该结构与岩土的共同作用进行了研究；得出了不同土体对结构受力的影响,实际工程选用老填土和碎石土是经济的.     

What Does Happen to Our Driving When We Get Older?

Abstract

The objective of this paper is to uncover the main antecedents associated with driving errors among older drivers in order to establish a framework for analyzing potential skill improvements using other approaches, for example, games. The article also aims at classifying age-related declines in seniors' abilities associated with their driving performance. The research undertakes an analysis of attempts made through the investigation of the literature. We have systematically searched papers and extracted (1) prevalent driving errors among seniors and (2) underlying age-related declines in seniors' abilities associated with their driving performance. We have also identified some characteristics of the research in this area (e.g. the research methods and geographical distribution of the research). Our expert panel mapped the functional declines in seniors' abilities to the driving errors to identify the relationship between these findings. A reliability test resulted in 81% reliability of findings. We have identified eight groups of driving errors, which could be affected by physical, visual, and cognitive declines among seniors. According to the experts' opinions, the underlying relationship of physical, visual, and cognitive declines among seniors and their driving errors were also presented. Our findings show that there is a potential for the use of innovative interventions such as playing video games to create an inexpensive, motivational, and enjoyable method that may provide a transfer effect to specific driving skills. This could help improve seniors' driving performance by improving specific functional abilities associated with driving.     

On a clear day in Ogunquit,Maine

Abstract

Winning a court case against a federal agency may seem to be the sweetest success for an environmental group, but losing litigation is not total failure. In the case of Ogunquit Village Corporation et al., vs. R. M. Davis the plaintiff lost the legal skirmish against the Soil Conservation Service, but in doing so significantly aided the struggle within the agency to implement more environmentally sensitive planning and engineering procedures. This paper describes the court case in terms of the Soil Conservation Service's procedural and policy responses including the agency's modus operandi and the internal paths/pitfalls involved with the implementation of visual resource management. The author also speculates as to the visual resource understanding of the evidence presented by the plaintiff and a possible but unstated visual basis for the original complaint.     

基于侧墙效应的隧道行车安全实验研究

隧道内是公路交通事故多发区,由隧道内封闭单调的行车环境引起的侧墙负面效应是事故发生的主要原因,设计合理的隧道侧墙图案可有效缓解这一效应.通过利用3DMAX等软件模拟长隧道驾驶环境,采用评价清单的方式,从视认性和闪现率的角度对隧道内侧墙图案的色彩、图案尺寸及间距进行了实验研究.通过实际工程验证,提出了适用于高速公路隧道内的侧墙图案应用设计,可改善隧道内的视觉环境,提高其行车的安全性.     

机车仿真器视景系统中的图象处理

为了满足视景仿真中空间分辨率的要求，将传统的几何变换和小波变换相结合，提出了一种改进的图象放大算法。该算法能够在不丢失高频信息的条件下放大图象，使得放大后的图象画面清晰，细节丰富。为了叠加信号灯，提出了基于模式识别的区域连接增长算法，该算法能够自动跟踪信号灯的位置和大小。     

指控系统间文电格式的标准化和互操作研究

提出了一种可扩展的文电标准化格式，并简要说明了利用该文电格式如何实现系统间使命的互操作。     

飞行器飞行试验三维视景仿真系统设计与实现*

介绍了一种基于Vega和Visual C＋＋6．0的飞行器飞行试验三维视景仿真系统,给出了系统总体设计方案,阐述了系统实现的关键技术及系统调试过程。该系统具有人机交互界面友好,帧频高、逼真性好等优点。     

高速公路交通标志内容设置的若干问题

高速道路建设和运载技术的发展，使得跨区域交通活动不断增长。交通标志是出行者了解道路信息的基本途径，在交通运输活动中发挥着必不可少的指引作用。地名信息的使用越来越频繁，然而交通标志的内容设置规范和标志管理信息化等方面仍然存在一些问题，妨碍了道路信息的传达和标志的指引功能。以广州市环城高速公路交通标志的调查为基础，根据现行设计标准，总结了主要的常见问题以及改善建议，并提出了实行必要的信息化管理手段以有助于交通标志信息的统一管理和及时更新。