نتایج جستجو برای: Major and Minor Failures

تعداد نتایج: 16867009  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده حقوق 1389

if the precise implementation of the principle of proportion and:balance between the violation and the penalty as well as the other dimensions could be considered as a stick yard for the imptementation of justice any lack of preciseness in carrying out such principle would not indeed be much too far from injustice . naturally ,if it would be imagined that the objective of balance between...

Akbar Bayat Basir Hashemi, Tayebe Kazemei

Cochlear implantation is a method used for the treatment of patients with profound hearing loss. This procedure may the accompanied by some major or minor complications. We evaluated the surgical complications of cochlear implantation in Fars province (south of Iran). A total of 150 patients with cochlear implantation were enrolled in the present study. Most of the patients were pre-lingual chi...

2002
Waltraud Kahle Charles E. Love

An operating system is observed to undergo failures. On failure, one of three actions was taken: failures were minimally repaired, given a minor repair or given a major repair. Furthermore, periodically the machine was stopped for either minor maintenance action or major maintenance action. Either on failure or maintenance stoppage, both minor and major repairs are assumed to impact the failure...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده پتروشیمی 1389

this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...

Journal: :iranian journal of medical sciences 0
basir hashemi akbar bayat tayebe kazemei department of otolaryngology, khalili hospital, shiraz university of medical sci-ences, shiraz, iran.

cochlear implantation is a method used for the treatment of patients with profound hearing loss. this procedure may the accompanied by some major or minor complications. we evaluated the surgical complications of cochlear implantation in fars province (south of iran). a total of 150 patients with cochlear implantation were enrolled in the present study. most of the patients were pre-lingual chi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - پژوهشکده ادبیات 1391

the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...

The Circuit Breaker (CB) is one of the most important equipment in power systems. CB must operate reliably to protect power systems as well as to perform tasks such as load disconnection, normal interruption, and fault current interruption. Therefore, the reliable operation of CB can affect the security and stability of power network. In this paper, effects of Condition Monitoring (CM) of CB on...

Journal: :Quality and Reliability Engineering International 2021

We consider a multistate system wherein deterioration is modeled as semi-Markov process with an absorbing state. The can suffer major and minor failures. When the reaches state, failure occurs it replaced. Meanwhile, occur at each Upon occurrence of failure, minimally repaired. propose optimal state–age-dependent maintenance policy for which minimizes expected long-run cost rate. study structur...

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