一"私"出多"险"

汽车给人们的出行带来了极大的方便:省时省劲,乘坐舒适,高贵典雅.可是,由于大多数人收入不太富裕,人人都想拥有一辆属于自己的私家车还只能是一个奋斗的目标.没有,但又想坐车、用车,因此,有的人就瞄准了公家车.这样一来,公车私用、私自出车的现象就屡见不鲜.手续齐全的公车私用这里暂且不提,就私自出车来说,看似平常,但实则隐患不少.我就有过这样一次经历.     

难得一窥"美洲豹"

我信步京城街头,途经一家装潢考究的餐馆,门前停放的一辆红色轿车赫然映入眼帘.凭我多年的"观车"经验,便知那绝非一辆普通轿车,便急步上前,顿觉眼前一亮,果然是一辆产自"大英"的老"美洲豹"("JAGUAR",台、港亦称"捷豹"、"积架")!很早就听说,京城民间珍藏着这款稀世名车,曾令到京城一游的"大英"国民都叹为观止.本人几乎跑遍京城各个角落寻觅她的踪迹,哈哈真是踏破铁鞋无觅处,得来全不费功夫.     

"一把方向"见高低

日前的一天下午,在杭甬高速公路柯桥路段发生了一起多辆轿车追尾相撞的交通事故. 因为施工,原来的四车道改为双车道.当一辆高速行驶的本田轿车发现前面有道路施工安全标致时,已刹车不及,一头撞上了锥形交通标墩!接着第二辆、第三辆、第四辆,连续追尾相撞,损失惨重,尤其是第二辆轿车.     

切莫一"鸣"惊人

7月28日下午、湖北保康县龙坪镇至襄樊市路段,一辆正在行驶的八平头大卡车接近路边一骑车人时,突然一声鸣笛、骑车人顿时手忙脚乱,连人带车钻进了汽车"肚"里.交警大队的鉴定书上写着:受害人因受突然惊吓、导致大脑神经过度紧张、失控……     

"超运证"一地一办苦了司机

"超运证"为何不能联网办理? 四川司机尤女士向记者反映说,她的大货车拉运大型设备急送北京,因只有四川公路局的超限运输证,被公路执法检查人员拦截在川陕交界.费尽周折,耽误了两天,才继续前行.     

一车挡"道"多车受阻

3月13日上午9时30分左右,在云南省大保高速公路永平境内的马道子隧道,一辆满载日用百货的大货车在行驶过程中发生侧滑,正好横在了隧道口,将隧道堵得水泄不通.……     

送"贼"一辆车(外一篇)

城郊农村,一个小院子,主人进城去了,只有一条狼狗在守门。有脚步声传来,狼狗叫起来。来人是主人出嫁的女儿,她特意来看爸爸和继母。她打开门,喊一声狗就不叫了,狗是认识她的。见爸和继母不在家,她坐了一会,就放下礼物,留张纸条要走了。刚要关门,进来一个中年人,模样憨实,农村人装扮,说是一家子,是××的侄儿,住在××村,借用一下摩托车,中午就送过来。她只知道继母的娘家在××村,说得还投合,但不知道有什么亲属,见那人还老实,想不会有错,再看院子里放的摩托车,已经很旧,老爸刚换了一辆新车,骑走了。就没想很多,说:"你看能不能发动着。"那人去试了一下,很快就发动着     

"五慢一快"话安全

因驾驶速度快,尤其是在一些特殊路段、路况和特殊条件下高速行驶,是导致摩托车交通事故的主要原因.为有效避免悲剧发生,摩托车驾驶者不妨试一试"五慢一快"的安全驾驶方法.     

与"氢"一起飞翔

当其它汽车品牌正如火如荼发展节能环保新能源汽车的时候,奔驰也没有停下其奔向环保的脚步,曾于2005年在底特律车展展出过一款名为B-Class F-Cell的概念车,如今这款车的量产车马上就要与我们见面了.     

体验长途行车加油难

"五一"期间,笔者所在单位组织员工自备车辆到洛阳、开封、焦作等地旅游.此前对限量加油早有所闻,但未曾亲历感受.通过本次远距离行车,感受颇多.     

自卸汽车侧翻事故分析实例

事故经过: 某单位一台矿内运输自卸汽车在存矿场进行卸载作业时发生倾倒事故,所幸侧翻时速度较慢,驾驶员反应灵敏,及时采取了自我防护措施,没有受伤,只是受了惊吓.车辆损失较大,两块蓄电池壳体破碎,燃油箱破裂造成燃油泄漏,举升油缸活塞杆轻度弯曲,举升油缸底座与车架连接处断裂.     

Application of a thermodynamic model with a complex chemistry to a cycle resolved knock prediction on a spark ignition optical engine

A combination of experimental and numerical methodologies is proposed for the investigation of knocking in spark ignition engines to aid in better understanding the physical and chemical processes that occur and to exploit the capabilities of a developed computational tool. The latter consists of a thermo-fluid dynamics model, which is part of an advanced 1-D fluid dynamics code for the simulation of the entire engine, and a complex chemistry model, which can be embedded into the thermo-fluid dynamics model using the same integration algorithm for the conservation equations and the reacting species. Their mutual interaction in the energy balance will be considered. The experimental activity was carried out in the combustion chamber of an optically accessible, single-cylinder P.F.I. engine equipped with a commercial head. The experimental data consisted of optical measurements correlated to the combustion and auto-ignition processes within the cylinder. The optical measurements were based on 2-D digital imaging, UV visible natural emission spectroscopy and the chemiluminescence of radical species (OH and HCO). The engine parameters, the pressure signals of the related data and optical acquisition are compared on an individual cycle basis in the simulation by running the engine at a constant speed and varying the spark advance from normal combustion to heavy knock conditions.     

一起货车与轿车侧面恶性擦撞事故的分析

介绍了一起货车与轿车侧面恶性擦撞事故的损伤情况，分析了两车相撞的部位、相撞前的相对速度及事故原因。     

体验长途行车加油难

“五一”期间，笔者所在单位组织员工自备车辆到洛阳、开封、焦作等地旅游。此前对限量加油早有所闻，但未曾亲历感受。通过本次远距离行车，感受颇多。发车之前，在单位内将客车燃油箱加注满燃油（单位配有自用油库），燃油箱约容纳220L柴油，由于该车型为单位通勤客车，所以只配备单燃油箱（旅游客车一般配置双燃油箱），这也成为本次旅行中的一大缺憾。     

一种矿用车专用变速器设计

结合矿用车工况,提出矿用车变速器的开发要求,作为设计开发输入,据此设计了一种专用车变速器,并详细介绍了该变速器的结构和工作原理。     

Using a surrogate safety approach to prioritize hazardous segments in a rural highway in a developing country

Road safety is a global concern particularly in developing countries where some road sections are disproportionately more vulnerable in terms of the frequency and severity of crashes. Other than using historical crash data based reactive approaches, those sections need to be identified proactively, so that mitigation measures can be applied. Moreover, those approaches are sometimes questioned mainly due to data reliability issues in developing countries. The study reported here is aimed at highlighting the applicability of traffic conflict techniques as surrogate safety measures to identify those sections of a rural highway in a developing country, which are most likely at risk. An adapted framework is demonstrated to identify traffic conflicts using combined surrogate indicators acknowledging the limited resources and facilities in developing countries. A new model is put forwarded using a count data modelling approach. Both fixed and random parameters model derivatives have been explored as an alternative methodological approach to relate the factors affecting the number and probability of conflicts. The partial effects of individual independent variables were estimated to gain a better insight of their impact. The results show that the model can predict high risk segments in terms of probability of conflicts as well as safety risk, as well as prioritize road sections according to the likelihood of their safety level. The model provides a less expensive alternative to the collection of historical crash data in order to identify hazardous road locations or black spots on two-lane highways in developing countries.¹     

一种用汽油燃烧系统模拟发动机台架催化剂热老化的方法

采用通用汽车公司的快速老化程序RAT-A，分别在FOCAS燃烧系统及发动机上对催化剂在老化前和老化后的性能进行对比试验。结果表明，FOCAS燃烧系统能够对催化剂进行和发动机类似的老化。与发动机台架试验相比，FOCAS系统有明显的优点，如严格地控制空燃比使其变化幅度很小、空燃比稳定运行的范围宽、活动部件少及易操作等。