today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...

abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...

سیستم­های پشتیبان تصمیم گیری به تصمیم­گیرندگان کمک می­کند که از طریق کنش متقابل مستقیم با اطلاعات و مدل­های تحلیلی به حل مسائل نیمه ساختاری بپردازد. مفهوم مستتر در سیستم پشتیبان تصمیم گیری این است که نتایج باید بدون نیاز به مشورت با متخصصین سریعاً به دست آیند و مستقیماً توسط سیاست­گذاران و نه پژوهشگران متخصص مورد استفاده قرار گیرند. در تحقیق حاضر ساختار مدیریت شهری و سیستم­های پشتیبان مورد استفاد...

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

Abstract Background and purpose: One of the major purposes of health and clinical centers is the satisfaction of patients which will consequently enhance their status of health. This study aimed at determining the level of inpatients satisfaction in Sari Imam Khomeini Hospital from the services provided according to SERVQUAL model. Materials and methods: In a descriptive-analytical study in...

the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...

magnetic resonance imaging (mri) is a notable medical imaging technique that makes of phenomenon of nuclear magnetic resonance. because of the resolution and the technology being harmless, mri has considered as the most desirable imaging technique in clinical applications. the visual quality of mri plays an important role in accuracy of medical delineations that can be seriously degraded by exi...