نتایج جستجو برای: reliability assessment

تعداد نتایج: 685970  

Deregulation policy has caused some changes in the concepts of power systems reliability assessment and enhancement. In this paper, generation reliability is considered, and a method for its assessment using intelligent systems is proposed. Also, because of power market and generators’ forced outages stochastic behavior, Monte Carlo Simulation is used for reliability evaluation. Generation r...

2007
J. L. Zunino

As the Army transforms into a more lethal, lighter and agile force, the technologies that support these systems must decrease in size while increasing in intelligence. Microelectromechanical systems (MEMS) are one such technology that the Army and DOD will rely on heavily to achieve these objectives. The MEMS devices within these systems will be required to last as long as the lifetime of the w...

2011

Issue Assessment of the potential risks to health from natural health products containing synephrine and/or octopamine in combination with caffeine. various products not licensed for sale in Canada Type of Product Natural Health Products Common Name (if any) various Medicinal/Active Ingredient(s) Synephrine and/or Octopamine and Caffeine Dosage Form(s) various Strength(s) various Route of Admin...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...

Journal: :The Netherlands journal of medicine 2005
H E M Daelmans H H van der Hem-Stokroos R J I Hoogenboom A J J A Scherpbier C D A Stehouwer C P M van der Vleuten

BACKGROUND Global performance rating is frequently used in clinical training despite its known psychometric drawbacks. Inter-rater reliability is low in undergraduate training but better in residency training, possibly because residency offers more opportunities for supervision. The low or moderate predictive validity of global performance ratings in undergraduate and residency training may be ...

2015
Austyn Snowden Mick Fleming

Macmillan Cancer Support UK have developed an electronic Holistic Needs Assessment (eHNA) to: (1) help people living with cancer express all their needs, (2) help those helping them better target support. eHNA consists of 48 items each ranked from zero (no problem) to 10. There has been no psychometric analysis of this tool and so its validity and reliability are untested. The aim of this study...

2014
ALEXEI V. IGUMNOV

The problem of reliability of new object of distributed hardware software (DHS) multi-agent system (MAS) is considered. DHS MAS is determined as a system that is based on agent technologies and consists of both agents and hardware components required for execution of agents and for interaction of agents with an environment. Reliability improvement, fault-recovery and several reliability assessm...

Journal: :basic and clinical neuroscience 0
fahimeh hashemirad department of physiotherapy, school of primary health care, medicine, nursing and health sciences, monash university, melbourne, australia. maryam zoghi department of medicine at royal melbourne hospital, university of melbourne, melbourne, australia. paul b fitzgerald monash alfred psychiatry research centre, alfred and monash university central clinical school, melbourne, australia. shapour jaberzadeh department of physiotherapy, school of primary health care, medicine, nursing and health sciences, monash university, melbourne, australia.

introduction: transcranial magnetic stimulation (tms) is a useful tool for assessment of corticospinal excitability (cse) changes in both healthy individuals and patients with brain disorders. the usefulness of tms-elicited motor evoked potentials (meps) for the assessment of cse in a clinical context depends on their intra-and inter-session reliability. this study aimed to evaluate if removal ...

2009
Michael Pecht Jie Gu

This paper presents a physics-of-failure (PoF)-based prognostics and health management approach for effective reliability prediction. PoF is an approach that utilizes knowledge of a product’s life cycle loading and failure mechanisms to perform reliability design and assessment. PoF-based prognostics permit the assessment of product reliability under its actual application conditions. It integr...

2002
Peter T. Popov

Reliability assessment of upgraded legacy systems is an important problem in many safety-related industries. Some parts of the equipment used in the original design of such systems are either not available off-the-shelf (OTS) or have become extremely expensive as a result of being discontinued as mass production components. Maintaining a legacy system, therefore, demands using different OTS com...

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