نتایج جستجو برای: fire and earth
تعداد نتایج: 16850928 فیلتر نتایج به سال:
Forest fire is one of the important problems in Iran which is caused by different factors such as human and natural factors. One of these factors is climate conditions that can be created by heat wave and special circulation of atmospheric phenomena. Occurrence of forest fire in north of Iran have different impacts on environment such as destruction of natural. According to the position of Iran...
fire is one of the incorporate vegetation management practices for grasslands and semi-arid rangelands. it may affect symbiotic relationship between range plants and mycorrhiza. accordingly, this research was aimed to investigate the effects of a spring prescribed fire on the symbiotic relationships between mycorrhiza and 6 plant species. the study was conducted in a semi-arid steppe rangeland ...
Introduction: using fossil fuels, some hazards such as explosion and fire are probable. This study was aimed to consequence modeling of fire on Methane storage tanks in a gas refinery using analyzing the risk, and modeling and evaluating the related consequences. Method: Hazard analysis by PHA was used to choosing the worst-case scenario. Then, causes of the scenario were determined by FTA. ...
Background: With breakdown of the former structures and the acceleration of urbanization process in recent decades, cities need careful planning in order to provide citizens needs including safety city. Thus, one of the major tasks of planners and urban managers is to determine the proper location for the establishment of fire stations. Method: In this descriptive-analytic study, given that m...
Forest fire is the major disturbance that can severely destruct genetic stocks and delays evolution of the forest to reach the climax stage. In this research, the effect of fire, vegetation and soil changes from 2002 to 2013 have studied. Following the steps of determining the scope of fire using GPS, preparing a homogeneous unit map in ArcMap software and implementing a systematic random-acces...
Background and objective: According to the necessities in the part 3 of National Building Regulations, design and construction of buildings should be in a way that the structures, according to the type of use, the size and the number of floors, resist long enough to fire, and prevent from destruction of buildings or from spread of fire to adjacent spaces or buildings. For this purpose, it is ne...
An important challenge in Earth science processing is the large volume and distributed nature of the data required by many processing algorithms. Despite the increase in available bandwidth over the last several years, it is still often impractical, or at least very time-consuming, to acquire and locally stage the data prior to processing, because the volumes can run into tens or even hundreds ...
Background;Despite advances in technology, people are still exposed to fire hazard. Students can be one of the most important exposed groups. Therefore, fire safety inspection should be established in dormitories. The aim of this study was to develop a fire safety checklist for fire safety inspection in dormitories. Methods; This study was as a tool development followed by a cross-sectional st...
Abstract. Fire constitutes a key process in the Earth system (ES), being driven by climate as well affecting changing atmospheric composition and impacting terrestrial carbon cycle. However, studies on effects of fires composition, radiative forcing have been limited to date, current generation ES models (ESMs) does not include fully atmosphere–composition–vegetation coupled feedbacks. The aim ...
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