To investigate the incidence and pattern of traumatic spinal fractures (TSFs) and associated spinal cord injury (SCI) resulting from motor vehicle collisions (MVCs).This was a cross-sectional study. We retrospectively reviewed 698 patients with TSFs resulting from MVCs admitted to our university-affiliated hospitals from 2001 to 2011. The incidence and pattern were summarized with respect to di...

background trauma constitutes a major public health problem in our country and contributes significantly to unacceptably high morbidity and mortality. objectives this study aimed to evaluate the epidemiology of trauma in dead patients referred to shahid rajaee trauma hospital, shiraz, iran. patients and methods in a cross-sectional study, all patients with trauma admitted to our center were enr...

This article deals with the theoretical basis for design of a motorcycle frame such as geometry motorcycle, choice shape and material manufacture frame. The is devoted to use simulation tools detect critical points in using Autodesk Inventor 2020 software. results simulations were used production real an electric motorcycle.

BACKGROUND Motorcycle sales, registration and use are increasing in many countries. The epidemiological literature on risk factors for motorcycle injury is becoming outdated, due to changes in rider demography, licensing regulations, traffic mix and density, road environments, and motorcycle designs and technologies. Further, the potential contribution of road infrastructure and travel speed ha...

The project aimed to investigate how hazard perception and responding is affected by level of experience as a motorcycle rider and to assess the extent to which hazard perception and responding can be improved by specific training. The literature review showed that car drivers with fewer crashes and older or more experienced drivers respond more quickly on hazard perception tasks and that at le...

Motorcycle safety was a prominent public and political issue during the 1980s largely because of the dramatic increase in the number of deaths and injuries occurring at that time, commensurate with the growth in the number of vehicles and licensed riders (Simpson and Mayhew 1991). Since then, deaths and injuries have declined steadily and, as a consequence, motorcycle safety has become a relati...

If you were to go into a motorcycle-parts department and ask them for a feedback assembly they wouldn’t know what the hell you were talking about. They don’t split it up that way. No two manufacturers ever split it up quite the same way and every mechanic is familiar with the problem of the part you can’t buy because you can’t find it because the manufacturer considers it part of something else...

We investigate how a straight skeleton can be used to approximate a motorcycle graph. We explain how to construct a planar straight-line graph G such that the straight skeleton of G reveals the motorcycle graph of M , for every given finite set M of motorcycles. An application of our construction is a proof of the Pcompleteness of the construction problem of straight skeletons of planar straigh...

When Colonel T.E. Lawrence ("Lawrence of Arabia") was fatally injured in a motorcycle accident in May 1935, one of the several doctors attending him was a young neurosurgeon, Hugh Cairns. He was moved by the tragedy in a way that was to have far-reaching consequences. At the beginning of the Second World War, he highlighted the unnecessary loss of life among army motorcycle dispatch riders as a...

Abstract— The main objective of this paper is the reconstruction of lateral dynamics and both roll angle and steering torque of single track vehicles (motorcycle, scooter, etc.). For that purpose, the well-known motorcycle model developed by Sharp in 1971 is used. This model characterizes the lateral dynamics of a motorcycle [16]. The roll angle is not observable in the obtained structure, for ...