نتایج جستجو برای: multiple failure modes

تعداد نتایج: 1195560  

2010
Zhengqiang Pan Peng Zhao

Many products have two kinds of failure modes, that is, degradation failure and traumatic failure. It is of great importance to study the competing failure of degradation failure and traumatic failure at use or accelerating conditions. In this paper, the problem of accelerated failure with competing causes of a degradation failure mode and multiple traumatic failure modes is treated. We discuss...

ژورنال: سلامت کار ایران 2013
علیمحمدی, ایرج, فرشاد, علی اصغر , میرزایی, فیض الله ,

  Background and aims : Technique of Failure Modes Effects and Criticality Analysis, FMECA, is a method for identifying and analyzing all potential failure modes of a system.This technique is used to prevent failures and to reduce their effects on the system . The main goal of this study was identifying and analyzing of the potential failure modes and assessing the effects of failures in the ce...

2014
Xiao Chen Wei Zhao Xiao Lu Zhao Jian Zhong Xu

This study presented a failure analysis of a 52.3 m composite wind turbine blade under static loading. Complex failure characteristics exhibited at the transition region of the blade were thoroughly examined and typical failure modes were indentified. In order to predict multiple failure modes observed in the tests and gain more insights into the failure mechanisms of the blade, a Finite Elemen...

ژورنال: بیمارستان 2021
Firouzi Jahantigh, Farzad, Vahedi nezhad, Neda,

Introduction and purpose: Risk assessment is a necessity in high-risk work environments like hospitals. During epidemics, the need to maintain the health of healthcare staff increases as they are effective people in controlling the spread of the disease. The purpose of this study was to assess the occupational safety of healthcare staff against coronavirus using FMEA in infectious diseases ward...

Journal: :iranian journal of neonatology 0
ali vafaee najar associate professor, health services management, health sciences research center, department of health and management, school of health, mashhad university of medical sciences, mashhad, iran hassan ghane msc, health services management, school of health, mashhad university of medical sciences, mashhad, iran hossein ebrahimipour associate professor, health services management, health sciences research center, department of health and management, school of health, mashhad university of medical sciences, mashhad, iran golam abbas nouri msc, health services management, imam reza hospital administrator, school of health, mashhad university of medical sciences, mashhad, iran bita dadpour md, internist, clinical toxicologist, assistant professor, imam reza hospital, mashhad university of medical sciences, mashhad, iran

prevention of medication errors in neonatal intensive care units (nicus) is of paramount importance due to age-specific and physiological conditions of neonates. this study aimed to evaluate the risk of medication prescription and administration via failure mode and effects analysis (fmea), which was carried out at the research and medical teaching center of imam reza hospital in mashhad, iran....

Journal: :Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 2012

Journal: :international journal of civil engineering 0
m. jahanandish dept. of civil eng., shiraz university, shiraz, iran m. veiskarami dept. of civil eng., shiraz university, shiraz, iran a. ghahramani dept. of civil eng., shiraz university, shiraz, iran

foundations behavior is affected by soil behavior which can vary from dilative to contractive depending on the stress level, particularly in dense frictional soils. the zero extension lines (zel) method has been generally developed to predict the foundations behavior. knowledge of soil behavior enables the zel method to predict the general and local shear failure modes. in this paper, a relativ...

روشن انتظار , صمد, پاشایی عدل, حمید,

In this paper the tunable M-channel filters based on Thue-Morse heterostructures consisting of single -negative materials has been studied. The results showed that the number of resonance modes inside the zero- gap increases as the number of heterogenous interface, M, increases. The number of resonance modes inside the zero- gap is equal to that of heterogenous interface M, and it can be used a...

Journal: :journal of occupational health and epidemiology 0
s mahdavi faculty member ,department of occupational health engineering, school of health, lorestan university of medical sciences, khorramabad, iran. p rasti pisheh student of occupational hygiene engineering, tehran university of medical sciences, tehran, iran m jozekanaani senior occupational hygienist, governing health section, hse main office, national iranian gas company (nigc), tehran, iran

background: the reliability and safety of gas refineries are strongly associated with the reliability of other parts of the system. defect and failure in one part of a system can cause total system breakdown or accident. the failure and damage in these equipment such as transformers and boilers results in not only the equipment damage and human injuries but also productivity reduction. the purp...

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