长寿命路面沥青层底拉应变影响因素分析

沥青层底拉应变是长寿命沥青路面在设计中的一个重要指标,可以作为路面是否能够达到长寿命要求的一个初步评价标准。因此,分析影响路面沥青层拉应变的相关因素,以及各因素的影响水平对指导长寿命沥青路面结构材料的设计具有十分重要的意义。     

剑麻纤维改性再生混合料抗冲刷性能研究

剑麻纤维的掺入对再生混合料的最佳含水量和最大干密度影响不大,且能够提高水泥稳定再生混合料的无侧限抗压强度。试验表明：剑麻纤维能够显著改善水泥稳定再生混合料的抗冲刷性能,且在一定掺量范围内,抗冲刷性能随着掺量的增加而提高。     

Eye-Movement Characteristics of Drivers According to Driving Experience-Relevance to Traffic Sign Legibility

An experiment was conducted to find the variability of driver eye movement according to different driving experience.An eye tracking system was used to study the regularity of driver eye movements, such as fixation duration, variations of fixation points, and the distribution of glance zone.It was found that driving experience had a significant effect on driver eye movement behavior.The percentage of fixation duration to total glance time for inexperienced drivers was 61.5%, while the percentage for experienced drivers was 50.2%.Moreover, the majority of drivers paid attention to the left region of the field of view more frequently than the central and the right regions.This study indicates that it takes inexperienced drivers more time to recognize traffic signs.The findings from this study will assist traffic engineers in designing and installing the traffic signs in an optimal way.     

Traffic Impact Analysis of the Access to Projects on Traffic Performance of Nearby Roadways

Access to any development is a connection between the buildings and urban roadways. The impact of access on urban roads varies with location of the access. This paper studies the impact of access to large buildings on the surrounding road network by exploring traffic conflicts based on the configuration of the access. The concept of conflict intensity is introduced in this study as a new evaluation indicator to evaluate the traffic conflict triggered by the presence of access. The results show that the greater the speed, the greater the conflict intensity of access. Meanwhile, a similar situation exists when other variables (e.g., conflict angle or the number of conflicts) change. The larger the conflict intensity, the more dangerous the access. Results from this study can help developers and traffic engineers choose suitable locations of access and organize the traffic in a logical manner.     

城市典型客运方式选择影响因素分析

在我国,交通工具种类众多,影响城市客运方式选择的因素纷繁复杂. 为了简化分析过程,筛选客运方式选择主要的影响因素是研究交通方式选择的基础. 对苏州等4个代表性城市居民出行调查数据进行因子分析. 采用SPSS中因子分析的主成份分析法,筛选出影响城市5种典型客运方式选择的主要个体属性影响因素,结合社会环境影响因素,得出影响每种客运方式选择的因素. 在分析过程中,也识别了因素间的主次、关联关系,为进一步量化与分析决策提供依据. 选取的数据直观简洁,能实际有效地反映居民对客运方式的选择,为城市交通管理部门制定合理的交通组织方案奠定基础.     

多媒体技术在水上专业游泳课教学中的应用

计算机技术、网络技术、多媒体技术正在飞速发展而且应用日益广泛,把多媒体CAI课件作为一种辅助教学手段引进体育教学课堂,是21世纪高校体育改革的必然趋势;本文通过游泳教学实践,探讨了多媒体技术在水上专业游泳教学中的应用,实验表明:有显著性的差异,教学效果优于传统教学.     

丰田T-TEP培训模式特点及启示

随着我国高等职业教育发展,以任务驱动、就业导向的教学理念深入人心,培养能够从事专业岗位的高等技术应用性人才的教育目标也得到高职院校的广泛认同。T-TEP是丰田技术培训计划的简称,是丰田公司针对客户要求和提高自身售后服务水平需要而开发的针对员工培训的课程和证书考核体系。文章在总结T-TEP特点的基础上,分析其对职业院校专业课程体系改革的启示。     

客运车站安全智能视频监控系统研究

本文首先介绍铁路客运车站安全视频监控系统的发展情况,分析系统的应用需求,应用智能视频分析技术设计了客运车站安全智能视频监控系统框架和实现关键技术.     

基于PCI总线的智能双通道RS422通信卡设计

设计实现了一种基于PCI总线的智能双通道RS422通信卡.板卡的核心部分包括PCI总线控制器PLX9052、双口RAM,CPLD,AVR单片机Atmega128,异步收发器,及RS422总线接口芯片.介绍RS422通信卡的硬件实现及系统软件结构,包括应用程序设计和WDM驱动程序设计.该通信卡允许多达128个的接口芯片接在同一总线上,便于实现多机通信.该接口卞可以用于高速的数据通信中,并且在计算机联锁全电子智能化执行机中得到了很好的应用.     

盾构在矿山法隧道中长距离推进关键技术浅析

区间隧道两端多为强风化的岩层或残积土,中间较深段常遇到未风化或微风化的高强度岩层,单靠盾构法施工难以完成,多采用"矿山法+盾构法"施工。针对"矿山法+盾构法"新型复合工法,介绍其适用范围、施工过程和优点,并以深圳地铁某区间隧道为例,提出需解决的关键技术问题,简析复合支护的受力与变形特性,为这种新型复合工法的推广及应用给予工程实践指导和建立理论基础。