نتایج جستجو برای: fire detector

تعداد نتایج: 101184  

Fire can influence the stability of many natural habitats via changes in biological, chemical and physical properties of soil. The aim of the present study was to investigate the effects of fire on some chemical properties and nutrients availability in a rangeland soil. To perform this research, a fired area with a five-month history and a homogenized area close to it without fire were selected...

زمان پرور, علیرضا, شکوهی پور, امیر, محمدفام, ایرج,

Background & Objectives : It is not possible to live without using fire. However, fire could destruct human properties in a short time. One of the most important types of fire is intentional fire. This type of fire has become a great problem for insurance companies, fire departments, industries, government and business in the recent years. This study aimed to provide a framework for risk assess...

ژورنال: سلامت کار ایران 2015

Background and aims:Today one of the most important issues in organizations, companies, offices and schools is that people should know how to turn off the fires in emergency situation. Certainly knowing about fire factors and safety in workplaces can reduce the costs of fire accidents, and in this study our goal is to determine the knowledge level of students related to methods of fire control....

Aliakbari, fatemeh, Goddosi, mansoreh, Heidari, mohammad, Shahbazi, sara,

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...

ژورنال: مرتع 2023

Abstract Background and objectives: Fire as a frequent phenomenon in rangelands and because of its complicated and different effects on natural ecosystems, has great importance. Awareness of such fire effects on vegetation cover in point of rangeland management after fire is important and helps better Understanding and sustainable management of rangelands. Changing in plant structure and compo...

Journal: :پژوهش های علوم تاریخی 0
علی اصغر میرزایی استادیار گروه تاریخ دانشگاه اراک

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...

ژورنال: سنجش و ایمنی پرتو 2016

One of the most important instruments in gamma ray spectroscopy is HPGe detector. Concept of virtual point detector was considered for Ge(Li) detector. On the basis of this concept, there is a point inside a Ge detector that can be regarded as a fictitious point detector hosting all the interactions. If there is really a point whose response can be considered similar to that of the whole real b...

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...

شفیعی مطلق, مسعود , فردمال, جواد , محمدفام, ایرج , گلمحمدی, رستم ,

Introduction: Every year many people around the world lose their lives or suffer from injuries and serious damages in industrial fire. This study aims at evaluating fire risk using an suitable method and determining endangered humane, financial and environmental capitals in various parts of a chemical industries. . Material and Method: In this analytical study the developed Frank and Morgan me...

Journal: :Ophthalmic plastic and reconstructive surgery 2013
Kristin E Hirabayashi Jeremiah P Tao

PURPOSE To evaluate the efficacy of a midface seal drape in eliminating fire risk oxygen concentrations from nasal cannulated oxygen delivery compared with a standard open oculofacial surgical field. METHODS Controlled experiment using the SimMan patient simulator and an oxygen detector. Oxygen concentrations were measured at 9 facial surgical locations with nasal cannula flow rates of 2, 4, ...

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