نتایج جستجو برای: the fire
تعداد نتایج: 16063331 فیلتر نتایج به سال:
Background and Objectives: Earthquake can be the source of many secondary disasters. Fire is one of the most important secondary hazards after the earthquake. In some cases, post-earthquake fires, in urban areas, may cause far more severe damages than the earthquake itself. After the earthquake, the risk of fire is greatly increased due to the existence of sources of fire, such as arteries of g...
The aim of this study was to assess the regional effects of fire on the surface cover and forage production of mountainous rangelands of Delfan County, Lorestan province, Iran. The fire took placed in June 2007 with significant effects on the vegetation characteristics in the study area. Four fire affected sites were selected for sampling and a close area without fire was considered as control....
Introduction: Fire stations as a place for locating firefighters and equipment are an important center for emergency services in urban societies. This research aimed to prioritize the improvement tasks of service quality in Yazd fire stations using AHP and TOPSIS. Methods: In this descriptive-analytic study, the information about personnel in stations and mission command, stations buildings ...
Fire causes destructive effects on soil, water and components of wetland ecosystems. The aim of this study was to investigate the effects of fire on runoff amount and nutrient concentration of Zrebar Lake watershed between 2014 and 2017 and the return of burned areas to their natural conditions in the short, medium and long term. The results showed that in the fourth year after the fire, the am...
fire is one of the most dangerous phenomena in the world which yields main damages, healthy and economical, and is thus a major threat to hospitals. since, most of the residents in hospitals are the individuals who cannot rescue themselves in such situations, fire in hospitals is more hazardous than any other public place; hence, it can endanger several sophisticated medical equipment. therefor...
nanoclay/triphenyl phosphate hybrid system was employed to examine the fire retardancy and mechanical properties of pc/abs blends. each of the polymers and their blends are widely used in the automotive, electrical andelectronic industries. because most thermoplastics are easily combustible they need to be flame retarded to reduce the burning rate especially in the initial phase of a fire incid...
Abstract Fire in natural resources is one of the crises that causes irreparable damage to ecosystems and the environment every year. The purpose of this research is to attempt to study areas of risk aversion and to prepare a map of forest fire hazard area by integrating topographic data and other additional information from a GIS system for Golestan province. In order to carry out this resear...
the risks of fire and explosion in oil and gas industry need to be managed. the objectives of the present study were to assess the risk of fire and explosion in iso-max unit of tehran oil refinery using dow’s fire and explosion index and to study the influences of the controlling methods. the latest version of dow fire and explosion index guideline was applied to calculate the fire and explosio...
the sassanid rulers’ endeavor to establish an empire led to a substantial change in the previous ruling system and to the foundation of a new order. the founders of the empire enjoyed the legacy of parthian and other preceding rules. they were fully acquainted with the concept of sh?hansh?hi (‘king of kings’) which aroused in parthian and other preceding rules on the one hand, and with zoroastr...
Awareness of the effects of fire on various aspects of an ecosystem after the fire,is important for range management. Changes in soil physical and chemical propertiescaused by fire can be the cause of changes in the vegetation. In this study, effects of fire onphysical and chemical characteristics of soil were investigated. This research was carriedout in a randomized block design method in the...
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