As the high-speed development of our national economy and promotion of the urbanization process, the quantity of motor vehicle and traffic volume increase sharply. Therefore, it brings a series of urban transportation problem, such as traffic jam, aggravation of the environment pollution.
As a real project,an electric not stop charge system that serves 25000 motor vehicles in Chongqing city,southwest of China is contrasted to stop charge method,the data from on site survey show that:CO becomes 1 72 times lower, NO x becomes 0 49 times lower and THC becomes 0 16 times lower. 1 tab,6 refs.
Implementation of an OFDM underwater acoustic communication system on an underwater vehicle with multiprocessor structure
Experimental Research on Friction of Vehicle Tire Rubber
The prediction technology study of fatigue life for key parts of a tracked vehicle's suspension system
In allusion to fatigue life of a tracked vehicle torsion bar, a virtual prototype model of the tracked vehicle suspension system including a flexible torsion bar was built based on dynamic simulation software-ADAMS.
The finite element analysis of the vehicle frame was made and the result satisfied the requirements.
An Ultrasonic Leaching Method (ULM) was developed for the analysis of manganese and lead on roadside soil samples in order to assess the pollution from motor vehicle exhaust.
Methods This case-control study compared the proportion with physical illnesses among 822 cases who committed suicide with that among 944 controls who died due to motor vehicle accident at age 55 years or over in Alberta, Canada.
Results Compared to the motor vehicle accident deaths, the elderly who committed suicide were more likely to have cancer, ischemic heart disease, chronic pulmonary disease, peptic ulcer, prostatic disorder, depression and other psychiatric illnesses.
A 65-year-old man with an unreduced posterolateral knee dislocation with laterally dislocated patella was seen 3 weeks after a motor vehicle accident.
Pelvic ring injuries are increasingly common in motor vehicle trauma.
The studies also show that the substitution of tall towers for parallelepiped buildings on one side of the canyon may enhance the street ventilation and decrease the pollutant concentration emitted by motor vehicles.
Smoke particles were obtained by bladder method from the exhausts of various types of motor vehicles.
Persistent exposure to particulate air pollution from motor vehicles has been implicated as one of the factors that is responsible for the observed increased prevalence of atopy.
Anthropogenic elements in road dust, construction dust, motor vehicles emission, and other combustion components were identified.
The use of compressed natural gas (CNG) in motor vehicles and its effect on employment and air quality
This paper discusses the function,the structure and the design basis of thesoftware for monitoring vehicle in a system of automatic collection toll on the highway.Thecharacterities of the software are the following:(1)it can alternately monitor the vehiclespassing the entrance or the exit of the system in distribute time;(2)it can immediatelycommunicate with the magnetic card machine;(3)By adopting the method of saving data intoor taking data from the relative data chain table,it can dlsplay the weight of a...
This paper discusses the function,the structure and the design basis of thesoftware for monitoring vehicle in a system of automatic collection toll on the highway.Thecharacterities of the software are the following:(1)it can alternately monitor the vehiclespassing the entrance or the exit of the system in distribute time;(2)it can immediatelycommunicate with the magnetic card machine;(3)By adopting the method of saving data intoor taking data from the relative data chain table,it can dlsplay the weight of a vehicle andthe toll,and print them.
Laser light has been more and more weidely applied to collimating and measuring instruments in recent years.In this paper a kind of photoelectric sensor is designed using the diode of visible laser generator.With this kind of sensor,a velocity measuring system is developed for the use of the experiment of the navigation of a MHDP trial ship.And this kind of sensor can also be used in other applications such as the examination of types and amounts of the motor vehicles.