نتایج جستجو برای: reaction to fire
تعداد نتایج: 10711701 فیلتر نتایج به سال:
A methodology is proposed for the characterization of fire resistive materials with respect to thermal performance models. Typically in these models, materials are characterized by their densities, heat capacities, thermal conductivities, and any enthalpies (of reaction or phase changes). For true performance modelling, these thermophysical properties need to be determined as a function of temp...
Large-scale fire danger assessment has become increasingly relevant in the past few years, and is usually based on weather information. Still, fuel characteristics also play an important role in fire behavior. This study presents a fire behavior simulation based on a global fuelbed dataset and climatic and topographic information. The simulation was executed using the Fuel Characteristic Classi...
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 ...
Many patterns of ancient art and architecture have been designed based on religious beliefs and orders in the Indian continent. One of them is the wisdom of sacred art Vastu Purusha Mandala. This knowledge is related to square plan that has its roots in the ancient Indian religious texts that so called Vedas. The mandala has three main shapes: circle, square and triangle. Although the circle i...
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 stu...
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...
Introduction: Due to the presence of causes of fire in the operating room, that these kinds of accidents likely take place in these places. Therefore, it is necessary for the operating room staff, including the anesthesia team and the operating room, to have sufficient information in order to prevent the accident and function properly during the accident. This study aimed to investigate the kn...
Beam-to-column connections have been found to be of great significance in influencing structural behavior at ambient and elevated temperatures. Observations from full-scale fire tests and damaged structures confirm that connections have a considerable effect on the stability time of structural components in fire. Due to the high cost of elevated temperature tests, adequate experimental data abo...
Background and Objectives: Fire risk is a potential risk in operating rooms. To have safety, fire risk management and its prerequisites including knowledge enhancement should be considered in operation rooms. The aim of this study was to determine knowledge of operating room staff about fire resources and fire prevention in Valiasr hospital, Boroujen. Material and Methods: In this cross-section...
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