نتایج جستجو برای: detection system

تعداد نتایج: 2682674  

Journal: :iranian journal of medical physics 0
seyed mahdi safavi m.sc. in nuclear engineering, faculty of nuclear engineering, shahid beheshti university, tehran, iran. hamid jafari m.sc. in nuclear engineering, faculty of nuclear engineering, shahid beheshti university, tehran, iran. alireza kamali asl assistant professor of radiation medical engineering., shahid beheshti university, tehran, iran. majid shahreyari professor, nuclear engineering dept, shahid beheshti university, tehran, iran.

introduction: radiation imaging is one of the applicable methods in diagnostic medicine and nondestructive testing for industrial applications. in nondestructive 3d imaging, in addition to the radiation source, there is a requirement for a suitable detection system, data acquisition system, mechanical sections for moving objects, reconstruction algorithm and finally a computer for processing an...

Journal: :international journal of automotive engineering 0
m. shahab m. moavenian ferdowsi university

vehicle driveline system and its working accuracy play an important role in the performance of car. the purpose of this study is to provide an appropriate mechanism for investigating, identifying and determining the position and size of defects in the vehicle power transmission system. this is based on the patterns of the residual signal, obtained from a simulated model of the system. neuro-fuz...

Journal: :archives of razi institute 0

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Journal: :تحقیقات مهندسی کشاورزی 0
بهاره جمشیدی کارشناس ارشد از دانشگاه تربیت مدرس سعید مینایی استادیار دانشکده کشاورزی، دانشگاه تربیت مدرس شهریار صرامی کارشناس ارشد از دانشگاه تربیت مدرس

development of a suitable method for color sorting of agricultural products such as: tomato, apple and orange, based on surface reflection and image formation was the goal of this research. a suitable scheme of color differentiation using an optic head and electrical processing circuitry for separating red from green and other colors is presented. a photo-conductive transducer, electrical resis...

Journal: :Jurnal Komputer & Informatika 2023

Road is a means of access for humans to move from one place another, connecting and serving as transportation infrastructure. At all times, asphalt roads are passed by road users, including small, medium, large vehicles. However, conditions not always smooth often there damages in certain parts the road. Factors such water, weather, temperature changes, unstable soil conditions, air temperature...

this research explores the manipulation of biomedical big data and diseases detection using automated computing mechanisms. As efficient and cost effective way to discover disease and drug is important for a society so computer aided automated system is a must. This paper aims to understand the importance of computer aided automated system among the people. The analysis result from collected da...

Internet of Things is an ever-growing network of heterogeneous and constraint nodes which are connected to each other and the Internet. Security plays an important role in such networks. Experience has proved that encryption and authentication are not enough for the security of networks and an Intrusion Detection System is required to detect and to prevent attacks from malicious nodes. In this ...

Journal: :iranian journal of electrical and electronic engineering 0
m. j. abbasi semnan university h. yaghobi semnan university, semnan

the doubly fed induction generator (dfig) is one of the most popular technologies used in wind power systems. with the growing use of dfigs and increasing power system dependence on them in recent years, protecting of these generators against internal faults is more considered. loss of excitation (loe) event is among the most frequent failures in electric generators. however, loe detection stud...

Journal: :journal of computer and robotics 0
maryam fathi ahmadsaraei faculty of computer and information technology engineering, qazvin branch, islamic azad university, qazvin, iran abolfazl toroghi haghighat faculty of computer and information technology engineering, qazvin branch, islamic azad university, qazvin, iran

by extending wireless networks and because of their different nature, some attacks appear in these networks which did not exist in wired networks. security is a serious challenge for actual implementation in wireless networks. due to lack of the fixed infrastructure and also because of security holes in routing protocols in mobile ad hoc networks, these networks are not protected against attack...

Prompt detection and diagnosis of faults in industrial systems areessential to minimize the production losses, increase the safety of the operatorand the equipment. Several techniques are available in the literature to achievethese objectives. This paper presents fuzzy based control and fault detection for a6/4 switched reluctance motor. The fuzzy logic control performs like a classicalproporti...

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