نتایج جستجو برای: fault incidence

تعداد نتایج: 306725  

2014
J. P. Anita

In fault pair collapsing, certain fault pairs are eliminated from the fault list, since those fault pairs are guaranteed to be distinguished by the remaining fault pairs in the fault list. Considering a fault pair is important in the case of diagnostic fault simulation and test generation. The concept of Z-set and independent fault set are used for fault pair formation. Z-set characteristics de...

Journal: :اخلاق در علوم و فناوری 0

background: medical liability systems play an important role on doctors’ everyday practices and their relationship with patients. they can be established in two ways, fault-based and non-fault. basing medical liability upon the element of fault links it to various issues of medical ethics.  in this paper, we have studied the possible ways each system, could affect the applicability of values an...

In this paper, a simulation-based method is proposed for optimal placement of vibration sensors for the purpose of fault detection in a centrifugal pump. The centrifugal pump is modeled to investigate the effect of vane tip fault on fluid flow patterns numerically. Pressure pulsations are investigated at different locations at the inner surface of the pump before and after the presence of the f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعت آب و برق (شهید عباسپور) - دانشکده مهندسی برق و کامپیوتر 1392

abstract according to increase in electricity consumption in one hand and power systemsreliability importance in another , fault location detection techniqueshave beenrecentlytaken to consideration. an algorithm based on collected data from both transmission line endsproposed in this thesis. in order to reducecapacitance effects of transmission line, distributed parametersof transmission line...

This paper presents a new Fast Kurtogram Method in the time-frequency domain using novel types of statistical features instead of the kurtosis. For this study, the problem of four classes for Bearing Fault Detection is investigated using various statistical features. This research is conducted in four stages. At first, the stability of each feature for each fault mode is investigated. Then, res...

ژورنال: کنترل 2020

In this study, a novel fault detection scheme is developed for a class of nonlinear system in the presence of sensor noise. A nonlinear Takagi-Sugeno fuzzy model is implemented to create multiple models. While the T-S fuzzy model is used for only the nonlinear distribution matrix of the fault and measurement signals, a larger category of nonlinear systems is considered. Next, a mapping to decou...

Journal: :journal of structural engineering and geo-techniques 2012
m. askari hasan aghbarati

near-fault ground motions have caused very much damage in the vicinity of seismic sources during recent earthquakes. it is well known that under specific circumstances, intensive ground shakings near fault ruptures may be characterized by short-duration impulsive motions. this pulse-type motion is generally particular to the forward direction, where the fault rupture propagates towards the site...

Journal: :international journal of industrial mathematics 2014
h. hamidi

we present an approach to design of fault tolerant computing systems. in this paper, a technique is employed that enable the combination of several codes, in order to obtain flexibility in the design of error correcting codes. code combining techniques are very effective, which one of these codes are turbo codes. the algorithm-based fault tolerance techniques that to detect errors rely on the c...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده برق 1391

با رشد روزافزون علم، انتظارها از سیستم های کنترل در صنعت بیشتر شده است. در این میان مسائل مربوط به ایمنی، بهره وری و بهره برداری اقتصادی از سیستم ها و تجهیزات صنعتی از اهمیت ویژه ای برخوردار هستند. از اینرو، تشخیص خطا و ایزوله کردن آن در سیستم های بکار رفته در صنعت، امری اجتناب ناپذیر است. در این پایان نامه به شرح کامل مزیت ها و پیشرفت هایی که در استفاده از طراحی رویتگر مدلغزشی (smo) در شناسایی...

Journal: :گوارش 0
behrooz mozaffari namin department of microbiology of pathobiology, school of public health, tehran university of medical sciences, international campus (tums-ic), tehran, iran. nasser ebrahimi daryani department of gastroenterology and hepatology, school of medicine, tehran university of medical sciences, tehran, iran. mohammad mehdi soltab dallal food microbiology research center / division of food microbiology, department of pathobiology, university tehran of medical sciences, school of public health, international campus (tums-ic), tehran, iran.

today’s knowledge on oesophageal adenocarcinoma and its rising incidence has encouraged researcher to illustrate relationship between barrett’s disease and progression to adenocarcinoma. the incidence of this disease has been accelerated sharply in current decades since people life has changed. studies have been demonstrated that several potential factors including genetical  and environmental ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید