abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...

Background and Objective: This study was designed to assess the safety and health risk in Ilam gas refinery and evaluation of TOPSIS method performance in risk assessment. Materials and Methods:  After identifying 955 hazards case, the risks were ranked separately in the health and safety sectors using criteria such as exposure level, severity and probability of the occurrence and use TOPSIS m...

  Ranking of a project's risks is considered an essential part of risk management process, especially when the number of risk factors increases. In the present study, a comprehensive structure of main risks existing in tunneling projects was initially prepared composed of 17 major levels and 196 sub-level, and these risks were subsequently ranked in tunneling project of Seymareh dam in South-We...

Wetland ecosystems have many economic and ecological functions and values, but today their security and existence have been heavily influenced by various natural and human factors. Therefore, the present study was conducted to identify, rank and assess environmental risks threatening Khur-e- Azini International wetland located in Hormozgan province. In order to identify risk factors, the Delphi...

Introduction: High-rise building projects are increasing due to the population growth, urban development, and migration of people to the major cities. High-rise buildings have special importance in terms of HSE risks rather than other projects since these projects are located in the cities and in the direct contact with people. However, in most incidents and events, organizations do not have en...

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

بروز انواع ریسک­ها و بحـران­هـای مـالی در فرایند جهانی شدن، ارتقای سطح کمی و کیفی خدمات بخش مالی را  بیش از پیش ضروری نموده است. بانک­هایاسلامیبهعلتماهیتخاصقرارداد­هایخود،افزونبرریسک­هایمتداول بانکداریبا ریسک­هایمنحصر­به­فردی رو­به­روهستندکهشناسایی و مدیریتآن­هاضروریاست. مقاله حاضر به شناسایی ریسک­های نظام بانکداری بدون­ ربا و بررسی روابط بین آن­ها می­پردازد. ابتدا ریسک‌های عمومی بانکداری بدون ...

  Background and aims: Today, due to the increasing of urban population and hence land shortage, construction of tall buildings are rising . The potential risks of such projects arecomparatively more than the conventional construction as the construction industry is reliant on manpower. Therefore attention to the health and safety of persons engaged in construction projects is essential.The pur...

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...