نتایج جستجو برای: skidders traffic
تعداد نتایج: 98535 فیلتر نتایج به سال:
Introduction: driving is such a complex cognitive task that requires a high level of vigilance and response to an emergency. Anything that leads to cognitive performance degradation in the driver's mental processing, increases crash risks. Traffic noise as one of the most destructive elements of cognitive function was examined in this study. Methods: In this study, the sample consisted of 80...
This study was carried out to analyze the variations of Benzene, Toluene, and para- Xylene (BTp-X) present in the urban air of Delhi. These pollutants can enter into the human body through various pathways like inhalation, oral and dermal exposure posing adverse effects on human health. Keeping in view of the above facts, six different locations of Delhi were selected for the study during summe...
Because of rapidly rising network traffic, ISP providers are trying to create new network structures and extend more resources to control the growth of demands. It is important to efficiently split the network bandwidth among different sources so that each user has enough bandwidth. Traffic engineering is used to achieve this goal. Performing reliable and efficient network ope...
conclusions close attention to these predictors may aid officials in planning effective training programs and prevention measures. these predictors can also be used in the legislation of traffic laws and regulations and managerial plans of hospitals. patients and methods this longitudinal study reviewed 15,331 injuries in 21 hospitals in the city of tabriz from march 2012 to march 2013. the req...
road traffic accidents and the effects they subsequently incur are increasing dramatically, and estimating the cost of road traffic crashes could be a vital step in improving the recognition of this widespread problem. the main objective of this paper is to estimate the cost of road traffic crashes in iran using the human capital (hc) method. results of this study indicate that the cost of road...
the paper discusses the current state of research concerning railway network timetabling and traffic management. timetable effectiveness is governed by frequency, regularity, accurate running, recovery and layover times, as well as minimal headway, buffer times and waiting times. analytic (queuing) models and stochastic microsimulation are predominantly used for estimation of waiting times and ...
background: more than 20% of deaths from traffic crashes are related to pedestrians. this figure in tehran, the capital of iran, reaches to 40%. this study aimed to determine the high-risk areas and spatially analyze the traffic crashes, causing death to pedestrians in tehran. methods: mapping was used to display the distribution of the crashes. determining the distribution pattern of crashes...
introduction: among the environmental pollutions, noise is very important for its physiological and psychological effects on human. traffic noise is one of the most important pollutants and the hospitals are one of the critical places regarding this type of noise. for these reasons, in the summer of 1382, the traffic noise of mashhad main streets around the hospit...
background: iran is one of the countries with considerable road traffic injuries. pre-hospital interventions have an important role in preventing mortalities and disabilities caused by traffic accidents.the present study aimed to explore the barriers of pre-hospital care in traffic injuries in tehran, iran. methods: a qualitative content analysis approach was conducted based on 21 semi-structu...
The analysis of the existing condition of Serbian road network from the safety aspect, aiming at proving necessity for road network reconstruction as the basic precondition for reducing great number of traffic accidents is prepared in this paper.
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