浅谈桥面铺装的早期病害与防治措施

对钢筋混凝土桥柔性桥面铺装的早期病害及其原因进行了分析与研究,针对性的提出了解决方案.     

船舶机舱监测报警系统的应用现状及发展趋势

机舱监测报警系统自动化是船舶自动化的一个重要组成部分,它直接影响到船舶的安全和船舶营运的经济效益.文章回顾了船舶机舱监测报警系统的发展历程,介绍了两种典型监测报警系统的特点,并结合现代技术的发展特点指出了未来机舱监测手段的发展趋势.     

沥青砼路面早期破坏的原因浅析

结合广东省某地方公路沥青砼路面破坏的情况,从交通组成调查、设计与施工等方面分析了沥青路面破坏原因,并提出了相应的技术建议。为类似工程避免同类病害的产生提供参考。     

铁路防灾系统中风雨报警判断的算法实现

铁路防灾系统处于起步阶段,此项研究具有重要的现实意义.本文提出了一种实用的风雨报警判断算法,并用计算机语言(C#)实现和验证了这种算法.     

桥梁结构状态预警系统研究

探讨了桥梁结构状态预警系统。根据桥梁结构损伤的特点,将预警系统分为两个体系:局部预警体系和整体预警体系。局部预警体系采用无模型预警体系,整体预警采用基于神经网络的新奇检测技术。通过将两者相结合,提高了预警的及时性和准确性。     

公路隧道火灾自动检测设备试验研究

根据公路隧道的运营特点,分析了影响火灾自动报警系统准确、及时报警的主要因素,提出公路隧道火灾自动报警设施的试验方法.     

基于AVR单片机的光纤自动保护倒换系统的设计

讨论了一种基于AVR单片机的光纤通信自动保护系统的设计,并阐述相应的系统构成原理及软、硬件主要功能特点.该系统对光纤通信进行实时在线监测和管理,及时有效地对光缆线路故障做出反应,并将通信中断时间缩短到1 s以内.系统技术指标分析表明其设计的有效性,能够有力地保证整个城域通信无间断地进行.     

西江大风对船舶航行的影响及预防措施

西江大风天气时常威胁着船舶的航行安全,易造成西江航运海难事故。文章介绍了西江大风天气的特征,分析了西江大风对船舶航行的影响,并提出建立天气预警系统和提高船舶防御能力的预防措施。     

旧水泥混凝土路面沥青加铺层早期病害分析

文章通过对某一级公路旧水泥混凝土路面加铺沥青路面早期病害的调查与试验检测,分析了沥青加铺层早期病害产生的原因,并提出了相应的病害处理方案,可为旧水泥混凝土路面加铺改造工程的设计与施工提供借鉴。     

Comparing high-end and low-end early adopters of battery electric vehicles

Battery electric vehicle adoption research has been on going for two decades. The majority of data gathered thus far is taken from studies that sample members of the general population and not actual adopters of the vehicles. This paper presents findings from a study involving 340 adopters of battery electric vehicles. The data is used to corroborate some existing assumptions made about early adopters. The contribution of this paper, however, is the distinction between two groups of adopters. These are high-end adopters and low-end adopters. It is found that each group has a different socio-economic profile and there are also some psychographic differences. Further they have different opinions of their vehicles with high-end adopters viewing their vehicles more preferentially. The future purchase intentions of each group are explored and it is found that high-end adopters are more likely to continue with ownership of battery electric vehicles in subsequent purchases. Finally reasons for this are explored by comparing each adopter group’s opinions of their vehicles to their future purchase intentions. From this is it suggested that time to refuel and range for low-end battery electric vehicles should be improved in order to increase chances of drivers continuing with BEV ownership.