نتایج جستجو برای: seat
تعداد نتایج: 5836 فیلتر نتایج به سال:
This paper investigates the effects of mandatory seat belt laws on driver behavior and traffic fatalities. Using a unique panel data set on seat belt usage in all U.S. jurisdictions, we analyze how such laws, by influencing seat belt use, affect the incidence of traffic fatalities. Allowing for the endogeneity of seat belt usage, we find that such usage decreases overall traffic fatalities. The...
This study examined the psychosocial and behavioral correlates of seat-belt use among 1,728 10th-graders in four Northern California high schools. Parent and friend seat-belt use patterns were most highly correlated with student seat-belt use (r = 0.66 and r = 0.61, respectively) and together accounted for 46% of the variation in use. These relationships held across differences in sex, ethnicit...
Natural canine crowns are preferred as abutments for removable partial dentures because of their root morphology and bony support. However, preparing the rest seat on the lingual surface of a mandibular canine risks perforating the enamel. An alternative rest-seat preparation, on the marginal ridge of the canine crown, conserves tooth structure and provides a rest seat of adequate length and de...
Vehicle seat suspension is one of very important components to provide ride comfort, in particular, commercial vehicles, to reduce driver fatigue due to long hours driving. This paper presents a study on active control of seat suspension to reduce vertical vibration transmitted from uneven road profile to driver body. The control problem will be firstly studied by proposing an integrated seat s...
INTRODUCTION Bicycle seat pressure is thought to be the principal risk factor for bicycle seat injuries such as erectile dysfunction; however there is a lack of understanding regarding the characteristics of a cyclist that predict bicycle seat pressure. AIM The purpose of this study was to determine if select attributes of a cyclist are associated with seat pressure during stationary bicyclin...
Travel by bus with long hours will create discomfort feeling for bus passenger. Long hour travel will create physiological stress and psychological stress on bus passenger. It may due to vibration, noise, as well as seat comfort. Seat comfort is a subjective feeling of bus passenger. In this research, air cushion was used to replace the part of the seat foam. During the development of the integ...
This study estimated the effectiveness of seat belts in reducing injuries and estimated the associated economic benefits using state of Kansas data. The estimation process included three stages. In the first stage, seat belt effectiveness in reducing injuries to motor vehicle occupants was estimated. Crash data from Kansas Accident Reporting System (KARS) database was used to accomplish this es...
As the primary interface with the human body during rear impact, the automotive seat holds great promise for mitigation of Whiplash Associated Disorders (WAD). Recent research has chronicled the potential influence of both seat geometrical and constitutive properties on occupant dynamics and injury potential. Geometrical elements such as reduced head to head restraint, rearward offset, and incr...
Even though the safety benefits of using seat belts are well-known among the transportation community, the average usage rates in some states remain at relatively low levels than it is desired. Among many factors that could be contributing the situation, the type of the seat belt law could be a major one. While many states still need to aggressively work on passing the primary seat belt law, es...
brought before parliament in early 1986. The next and obvious stage is to extend the requirement to rear seat occupants. Britain is one of the last of the motorised nations which does not yet require fitting rear seat belts. In depth studies of crashes have shown that one of the limitations to the protection of front seat occupants occurs in frontal collisions when correctly belted front occupa...
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