阿以恐怖主义宗教历史渊源探

宗教本身并不一定导致恐怖主义。作为人类文明一种重要的渊源性文化形式，一些宗教在特定层面和阶段对暴力恐怖行为的一定诠释与支持往往也是显而易见的。从宗教历史层面看，阿以之间的暴力冲突尤其如此。     

船舶安全避让管见

本文论述了了船舶在长江航行中，驾引人员的安全意识、法规意识和当前发生碰撞事故的特点，提出了实操过程中安全避让的具体方法。     

低空空域飞行冲突避让算法

为了预防航空器在低空空域飞行中发生相撞，根据空中交通管理规则的飞行间隔规定，采用速度矢量三角分析法，分析了避免冲突的基本条件，确定了航空器B与航空器A的速度矢量关系，提出了调整速度和改变航向两种解决方法，推导出速度和航向改变量的计算公式。通过系统演算和DRS-98型雷达管制模拟机的验证表明，在任何情况下都能够使用改航法避让飞行冲突，航空器之间的距离和航向差越大，航向的改变量就越小；当航空器之间的距离大于6倍的飞行间隔时，应当使用调速法避让飞行冲突，这样航空器可以继续保持原定的飞行航线。     

Modeling traffic operation at signalized intersections without explicit left‐turn yielding rules with an enhanced cell transmission model

This paper presents an enhanced cell transmission model (CTM) to capture traffic operation at signalized intersections without explicit permissive left‐turn yielding rules (i.e. aggressive permissive left‐turn maneuvers may not necessarily yield to opposing through traffic), which can be widely observed in many developing countries. Different from previous studies that focus on traffic dynamics on approaching links, this study contributes to modeling traffic operations within the intersection. A novel cell transmission framework with various types of virtual cells is proposed to model the dynamics of traffic movements from approach to exit. The unique phenomenon of competitive occupying of the conflict point between the left turn and opposing through movements is modeled. The cell state indicating its blockage is proposed to capture the dynamic queue formulation and dissipation and to evaluate the operational traffic performance at the intersection. Field validation results show that the proposed model can capture the operation of traffic at signalized intersections without explicit permissive left‐turn yielding rules with significantly higher level of accuracy than traditional traffic flow models. Copyright © 2016 John Wiley & Sons, Ltd.     

Vehicle rollover avoidance by application of gain-scheduled LQR controllers using state observers

Many researches have been conducted in the area of control applied to vehicle dynamics, aiming at reducing the possibility of the occurrence of the type of accident known as rollover. In this research, based on a common nonlinear model and its linearisation, a method for properly selecting matrices for solving the Riccati equation considering different speeds was proposed. The method showed in which ways speed really influences the choice of controller gains. By developing the dynamic equations for the yaw- and roll-coupled motions and modelling of controllers and state observers, it is possible to compare the efficacy of this control strategy using both linear and nonlinear simulations using Matlab. Significant results were obtained regarding the reduction of the rollover coefficient for a double-lane change manoeuvre at different speeds, thus indicating advantages of using this controller in practical cases.     

STUDY ON CONFLICT MANAGEMENT FOR COLLABORATIVE DESIGN SYSTEM

IntroductionAdvances in computer networks and informationtechnology have enabled product designers tomore effectively communicate,collaborate,ob-tain and exchange a wide range of design re-sources during product development.ComputerSupported Cooperative Work( CSCW) describesa research area concerned with people working ingroups and computer systems supporting them,and collaborative design is an important applica-tion of CSCW.Collaborative design has typicallydistributed multiple functional…     

高速铁路列车运行冲突判定及其实现

为了提高高速铁路行车调度水平,保障行车安全,研究了车站间隔时间冲突、区间冲突、到发线运用冲突、行车作业与维修作业冲突、列车运行与旅客换乘时间冲突、动车组接续时间冲突和跨线列车跨线时间冲突7类冲突的判定方法.根据高速铁路列车运行冲突的判定依据,运用时间拓扑矩阵理论,建立了事件时间片时态关系的计算准则,实现了列车事件的时间逻辑判断.将高速铁路列车运行冲突判定分为到发线运用冲突判定和其他类型冲突判定,提出了冲突判定的思路和步骤.应用实例表明:利用上述列车运行冲突判定规则和时间拓扑矩阵模型的组合,能够实现各类列车运行冲突的实时判断,满足高速铁路行车指挥的需要.      

无信号控制交叉口行人过街间隙选择模型研究

我国城市道路交叉口中大量行人与机动车冲突导致了交叉口运行效率降低,同时也引发了不容忽视的安全问题。在对无信号控制交叉口进行录像调查的基础上,分析了行人与机动车冲突特性,利用实测数据建立了行人过街间隙选择行为概率与安全间隙之间的数学关系模型,并对模型进行了检验与验证,证明该模型具有较好的拟和度和预测精度,同时与已有的Logit模型进行比较分析。     

基于重复博弈的无灯控交叉口驾驶员行为模型

在分析无灯控交叉口插车过程中驾驶员行为决策相互影响关系的基础上,从更小时空尺度出发,提出了考虑安全因素、速度因素的驾驶员插车行为过程效用函数,建立了基于动态重复博弈的无灯控交叉口驾驶员插车行为模型,分析了不同驾驶员类型组合在插车博弈过程中的纳什均衡及相应的驾驶员决策行为。结果表明:该模型能够在一定程度上反映不同条件下交通冲突的演化结果,说明了应用动态重复博弈进行驾驶员行为模型研究的合理性。     

基于交通冲突技术的交叉口安全可靠度分析

借鉴路网可靠性分析方法,定义交叉口安全可靠性的概念,提出基于,中突概率分布的安全可靠度理论计算方法以及基于综合交通冲突率的安全可靠度计算方法,结合实例实现交叉口安全评价的定量分析。