In this study, detection and identification of common faults in industrial gas turbines is investigated. We propose a model-based robust fault detection(FD) method based on multiple models. For residual generation a bank of Local Linear Neuro-Fuzzy (LLNF) models is used. Moreover, in fault detection step, a passive approach based on adaptive threshold is employed. To achieve this purpose, the a...

The Quchan fault is located in Quchan - Shirvan area which is a part of Chenaran- Bojnourd plain in Kopeh-Dagh zone, NE Iran. The Quchan active fault with northwest – southeast trending is one of the most important strike-slip faults in the area which its activity led to the numerous historical and instrumental earthquakes. The Neo-tectonic activities of this fault are investigated by the drain...

An approach for assignment of the optimal location and tap changer adjustment related to flux-lock type superconducting fault current limiters with tap changer (TC-FLSFCL) is used in this paper by debating the reduction of fault current flowing from each device and enhancement of reliability varying with customer type in a distribution network connected with distribution generation (DG). TC-FLS...

wireless sensor networks (wsns) consist of a large number of sensor nodes which are capable of sensing different environmental phenomena and sending the collected data to the base station or sink. since sensor nodes are made of cheap components and are deployed in remote and uncontrolled environments, they are prone to failure; thus, maintaining a network with its proper functions even when und...

changes in the physicochemical conditions of process unit, even under control, may lead to what are generically referred to as faults. the cognition of causes is very important, because the system can be diagnosed and fault tolerated. in this article, we discuss and propose an artificial neural network that can detect the incipient and gradual faults either individually or mutually. the main fe...

conclusions the prevalence of both fv and fii variants are population based. iran is an ethnically diverse country. therefore, for a comprehensive analysis of a potential association of fv and/or fii mutations with stroke among iranian population, epidemiological studies could be conducted among different ethnic groups. patients and methods the study population consisted of 153 patients of diff...

background work-related injuries are the most important cause of work absence, disability, retirement, mutilation, and even mortality. in iran a great number of work-related injuries are occurred in construction industry. however, less than 12% of total workers are active in the construction sector. objectives this study aimed to determine the incidence rate of work-related injuries, the type o...

background: complete and fast diagnosis, registry and treatment programs are the main effective strategies for controlling infectious diseases. in addition, an organized and extended infectious disease surveillance system is crucial in designing and monitoring communicable diseases control programs. the quality of the surveillance system can be evaluated by several indices such as timeliness, c...