浅析摩托车电喷系统的匹配技术与开发系统

全文从摩托车电喷系统的概述谈起,然后详细介绍了摩托车使用电喷系统的意义,最后就摩托车电喷系统的匹配技术与开发系统进行了全面的剖析。     

摩托车交通与城市发展相关问题研究——以广州市为例

摩托车交通是城市交通体系中的重要组成部分,随着社会的发展,摩托车所带来的问题也逐步凸显出来。在分析了摩托车的发展与国民经济的关系后,探讨了摩托车交通的发展对城市交通和治安安全、城市大气和噪音污染、其它交通出行的影响,结合广州市摩托车发展经验,提出了摩托车发展政策的相关建议,探求合适的摩托车交通发展战略,为城市交通的可持续发展提供规划依据。。     

Vulnerability of motorcycle riders and co-riders to injuries in multi-occupant crashes

In developing countries, most motorcycles are ridden with more than one occupant. The objective of this study was to establish the relative vulnerability of riders and co-riders to injury and determine the injury risk factors in multi-occupant motorcycle crashes. Between January and December 2010, we collected crash and injury data from victims of multi-occupant motorcycle. It is a hospital-based study. The probability of sustaining injuries was similar for co-riders and riders, but co-riders were more likely to sustain severe injuries. Occupants of >2-occupant motorcycles were also more likely to be involved in risky behaviours like not wearing helmet and speeding than those on 2-occupant motorcycles. Occupants of motorcycles on which there were more than two occupants were at an increased risk of sustaining injuries compared with occupants of motorcycles with only two occupants (OR: 2.1, 95% CI: 1.1–4.3). Motorcycle co-riders were more vulnerable to severe injuries than riders. The significance of the study finding to prevention was discussed.     

HXD1及HXD2型电力机车配件优化管理

文章结合和谐机车配件管理现状,从制度管理、流通结构及技术手段方面对配件管理系统进行优化分析,从而保障机车检修进度及质量。     

大排量摩托车冷却风扇噪声测试与选型分析

随着生活水平的提高,以休闲娱乐为主的大排量摩托车越来越受到大众的青睐。噪声水平直接影响摩托车的骑乘舒适性,冷却风扇噪声作为摩托车的主要噪声源之一需要重点关注。从摩托车骑乘工况和环境噪声污染的角度出发,提出一种合理的风扇噪声测试和评估方法。以某500 cc大排量摩托车风扇为测试对象,运用LMS Test.Lab测试系统进行噪声测试分析,明确冷却风扇噪声对驾驶员耳旁和四周环境噪声的贡献量,通过选型分析锁定整车噪声更低的风扇方案,提升了摩托车的骑乘舒适性,减少了环境噪声污染。风扇噪声测试和选型分析方法可为摩托车风扇匹配提供参考。     

Factors associated with child passenger motorcycle helmet use in Cambodia

This study examines factors associated with child passenger helmet use in five Cambodian provinces. We performed an analysis of periodic roadside observations of helmet use over a four-year period. A total of 62,039 child passengers 12 years of age and younger met inclusion criteria and were included in the analysis. Overall, 1369 (2.1%) of child passengers were observed to be wearing a helmet. Most significantly, children were six times more likely to wear a helmet if the driver was wearing a helmet (OR 6.2; 95% CI 5.1–7.5). In addition, the odds of helmet use were noted to be significantly different depending on province, day of the week, time of day and number of passengers on the motorcycle. This study highlights the extremely low rate of child passenger helmet use in Cambodia, and provides priorities for interventions and enforcement to ensure all children are protected from head injury.     

Clothing-related motorcycle injuries in Pakistan: findings from a surveillance study

This study aims to assess the burden and patterns of clothing-related motorcycle injuries in Karachi, Pakistan. Data were extracted from an ongoing traffic injury surveillance system. In three years (2007–2009), out of 99155 road traffic injury cases there were 986 (0.9%) cases of clothing-related motorcycle injuries. Most cases were females (73.9%) and pillion riders (80.6%). The crashes involving clothing-related injuries were mostly single vehicle (98.5%), and largely resulted in injuries to the external body (60.3%), limbs (51.0%), head (41.5%) and face (35.9%). One-third of injuries were either moderate (26.7%) or severe (10.2%) while 10 (1.01%) deaths were reported. Female gender (11.4%), age ≥ 45 years (19.4%), pillion riding (11.3%) and crashes occurring at intersections (12.3%) were more likely to result in moderate or severe injury as compared to other users (P < 0.001). Injuries due to entanglement of loose fitting clothing in motorcycles are not uncommon in Karachi. Awareness campaigns for prevention of such injuries may involve promotion of appropriate dressing for motorcycle riding including close wrapping of clothes and encouraging installations of covers on the rear wheels and drive chains.     

定价、“下乡”与销售：来自摩托车行业的实证

2009年我国实施的“摩托车下乡”政策拉动了农村居民对摩托车的消费。鉴于农村地区居民收入较低,摩托车的不同定价会影响销售吗？基于2007-2012年71家摩托车企业的面板数据,使用倍差法来评估“摩托车下乡”政策对不同定价的摩托车企业销售的影响差异性。研究发现,定价较低的摩托车企业在政策实施后销售量的增加大于定价较高的企业。这说明农村居民较为偏好满足基本需求的低定价产品。     

电动摩托车和电动自行车争议辨析

本文针对目前社会上就国家标准化管理委员会发布的4项电摩标准所引起的有关电动摩托车和电动自行车标准的争议,分别从法律层面、标准层面逐一对其差异进行了清晰、明确的阐述,并观点鲜明地指出电动摩托车和电动自行车是两种完全不同类型的产品,国家发布的电摩标准同样也不适用于电动自行车：最后,文章还就本项争议的原因作了言简意赅的分析和评价。