多路数码管显示仿真系统懿设计与实现

文章介绍了基于单点单路I／O仿真系统的多路数码显示仿真实现的分析与设计。     

汽车碰撞中乘员损伤成因分析与计算机仿真研究

目的运用计算机仿真技术模拟汽车碰撞过程,为法医学鉴定及交通事故处理提供参考依据。方法通过对汽车碰撞中乘员损伤成因分析及车辆痕迹检验,建立有效的人体、车辆仿真模型,利用动量冲量法与多刚体动力学结合仿真求解乘员运动模式,客观再现乘员交通伤特点。结果计算机仿真汽车碰撞过程中,人体模型上碰撞部位的分布符合法医学检验所得结果。结论计算机仿真求解乘员交通伤的方法在法医学鉴定和事故责任认定中具有参考价值。     

轿车与自行车碰撞事故仿真研究及骑车者致伤特点分析

目的研究计算机仿真技术重建自行车骑行状态下交通事故发生过程,并探讨此技术在分析真实事故中骑车者人体致伤方式、特点及损伤程度上的可行性。方法通过对事故人、车痕迹鉴定和模型建立,构建相关碰撞环境并利用高性能计算机及PC-Crash软件对事故进行再现研究。结果计算机仿真技术建立的人、车模型在模拟碰撞过程中,骑车者发生的运动过程、损伤分布及损伤动力学响应结果与法医学尸表检验人体损伤部位、程度基本吻合。结论利用计算机仿真技术重建自行车骑行状态下的事故碰撞过程、分析骑车者致伤方式及提供损伤部位动力学响应参数等,对于交通伤法医学鉴定及深化交通伤机制研究具有参考价值。     

骑跨伤在机动车碰撞自行车事故中的特征及生物力学分析

目的以真实案例为基础,研究自行车与机动车碰撞交通事故中,不同机动车型、交通方式等因子造成自行车骑车人下肢内侧骑跨伤的特征,分析其生物力学机制。方法选取上海地区发生的自行车与机动车碰撞交通事故案例140例,全面收集现场、自行车、机动车、人体、交通方向等信息,运用回顾性研究方法分析,同时,选取其中典型案例,通过计算机仿真技术模拟事故发生过程,提取人体各受伤部位的动力学响应数值,如加速度、力和力矩等,与案例研究结果对比。结果全部事故中出现骑跨伤与无骑跨伤案例频数相等;侧面撞击与前后方向撞击骑跨伤的发生情况无显著性差别;大型车辆撞击事故中出现骑跨伤频率较低;骑跨伤的发生频率随车速加大而增高;就骑跨伤的分布来说,撞击侧下肢骑跨伤位置低(链条、脚蹬管等损伤),而对侧骑跨伤位置高(鞍座损伤),在小型车辆撞击时该特点更明显。结论分析自行车骑车人的骑跨伤特征和生物力学机制有望对道路交通行为方式鉴定提供新依据。     

Empirical validation of a family-member prioritization approach to maximize statistical power in missing person cases

In order to prioritize the exhumation of the most informative reference relatives to increase the statistical power of a reference group, a conditional simulation approach for missing person identification that combines both exclusion and inclusion power in reference families has been previously developed. The aim of this study is to empirically validate this approach by comparing its predicted theoretical prioritization model with the observed changes in statistical power in real cases of our laboratory, in which new relatives had already been added. We conclude that this approach is a reliable tool to choose the most appropriate reference relatives to complete a family group and improve the identification power of a Missing Person (MP).     

物流仿真软件的应用现状与发展

物流仿真在我国已逐渐显出其重要作用。我国物流发展水平和研究应用能力还不尽人意，物流企业或企业物流在面临物流工程项目投资新建或原有系统技术改造时，由于缺乏准确丰富的信息数据和必要的物流仿真系统决策支持，造成了企业物流项目建设投入的盲目性和资金流失。物流仿真借助计算机技术对物流系统进行真实模仿，通过仿真实验得到各种动态活动及过程瞬间仿效记录，进而验证物流工程项目建设的有效性、合理性和优化效果，因此物流仿真是有其重要意义的。本文着重介绍物流仿真的功能，几种常见的物流仿真软件的性能特点，同时结合Flexsim和RaLC（乐龙）两种国内外典型仿真软件，进行物流仿真软件的应用过程与仿真效果分析。     

Do Role-Playing Simulations Generate Measurable and Meaningful Outcomes? A Simulation's Effect on Exam Scores and Teaching Evaluations

Role-playing simulations are frequently claimed to be effective pedagogical tools in the teaching of international relations (IR); however, there is a surprising lack of empirical evidence on their classroom utility. The assessment of simulations remains mostly anecdotal, and some recent research has found little to no statistically significant improvements in quantitative measures of academic performance among students who participated in them [for example, International Studies Perspectives (2006), vol. 7, pp. 395; International Studies Perspectives (2008), vol. 9, pp. 75–89]. Scant research has been conducted on how role-playing simulations might affect students' perceptions of the instructor's teaching. This paper investigates whether a simulation had statistically significant effect on students' exam scores in an IR course or on student teaching evaluation scores.     

Using "Shocks and Rumors" to Teach Adaptive Thinking

The business landscape is constantly changing. Moreover, because of globalization, increased competition, and instant communication, the rate of change is accelerating. A student who has practiced only static scenarios is ill prepared to recognize, process, or adapt to changing negotiation issues and interests. Thus, negotiation instructors must change our practices to prepare students to succeed in the increasingly dynamic negotiation situations they will face by utilizing simulations that are also dynamic. This article reviews research on adaptive thinking, applies it to negotiation training, and provides examples of dynamic simulations that require students to adapt. Finally, it offers advice on how to make existing cases dynamic by using "shocks and rumors."