نتایج جستجو برای: height of fall
تعداد نتایج: 21174069 فیلتر نتایج به سال:
background : falls are important causes of mortality and morbidity in urban areas and put a high burden on societies. we investigated patterns of fall traumas and related factors in a referral trauma hospital in tehran, iran. methods: in this routine-data-based study, all documents of fall cases in hazrate-rasool hospital, tehran, iran, during october 2014-2015 were investigated. information on...
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
in this study, scour of mashkid bridge pier located in mashkid river of saravan county has been studied and to measure the scour rate, the numerical model hec-ras 4.0 has been used. upon selection of mashkid river as the case study and whereas the studied zone is important with respect to the climatic conditions and showery monsoon raining and flowing the great and destructive floodwaters, ther...
introduction: trauma due to accidents or fall from height is a major cause of disability and mortality. the present study was designed aiming to evaluate the baseline characteristics of fall from height victims presenting to emergency department (ed). methods: this prospective cross-sectional study evaluates the baseline characteristics of fall from height cases presenting to eds of three educa...
the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...
Introduction: Fall from height is one of the main causes of death in the construction workers. Therefore, this study aimed to identify and prioritize the factors affecting falls from height accidents in construction industry. Material and method: A descriptive-analytical study was conducted on five constructional projects in Pars Jonoobi industrial region, Iran. All of the reported events from...
Falling from height is an urban phenomenon and shows an important form of blunt trauma. We report an 18-year-old man who fell from 6 m height onto vertical steel rods in an under construction building. He went under surgery to remove two foreign bodies and was discharged on the 2nd day after surgery in good conditions. The objective of this report is to provide a definitive baseline to improve ...
rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...
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