نتایج جستجو برای: digital

تعداد نتایج: 307822  

Journal: :dental research journal 0
sima saghaie roshanak ghaffari

background:   fl uence of image compression on the identi fi   materials and methods:   fi   fi   fi   results:   conclusion:   fi   fi   le format for the compression of digital lateral cephalograms. cation of cephalometric points compared with the dicom format. jpeg2000 is a reliable   jpeg2000 images of lateral cephalograms with quality factors 85, 75, and 60 did not demonstrate any alterati...

Journal: :پژوهشنامه کتابداری و اطلاع رسانی 0

purpose – this paper aims to describe the role of public libraries in bridging the digital divide. the paper firstly reviews the existing literature body in this area and then suggests a number of practical solutions. digital divide is a concept which appears in the area of information and communication technology (ict) since 1990 and refers to the existing inequality in accessing to ict among ...

Majid Fani Seyyed Mehdi Jalali, Shadan Vahabzadeh

This research aims to study the effect of using digital (web-based) analyses in performance measurement and optimization of digital marketing in digital-based companies in Tehran. The data collection tool was a researcher-made questionnaire. A panel of experts and supervisor were asked to measure the validity of the questionnaire. For reliability analysis of this tool, Cronbach’s alpha test was...

Kasra Rahimipour, Mahdi Kadkhodazadeh, Mahshid Namdari, Reza Amid,

Objectives: An efficient, safe, affordable and easily accessible measuring instrument for quantitative assessment of bone prior to dental implant placement enables more accurate treatment planning. Costly imaging modalities are neither widely available, nor affordable for some patients. This study sought to assess the efficacy of a newly designed digital bone gauge for measurement of bone width...

Naghmeh Abdollahi Seyedeh Saeede Mohtavipour Seyedeh Tahereh Mohtavipour Somayeh Nemati

Introduction: Dental caries is the most common chronic condition in children. Recently, there has been a growing tendency to using digital panoramic radiography among clinicians. The present study aimed to determine the accuracy of digital panoramic radiography with and without software enhancement in the diagnosis of proximal dental caries in primary molars. Methods: This study was conducted u...

Background: The COVID-19 pandemic has forced many educational institutions to shift to flexible learning options (FLO), which require technology in teaching. Digital immigrant nurse educators, who are educators born before 1985, may need help adopting FLO due to their limited knowledge and skills in technology. This study aims to explore the experiences of digital immigrant nurse educators' cha...

Journal: :پژوهشنامه کتابداری و اطلاع رسانی 0
سمیه رجبی محمد رضا کیانی محسن نوکاریزی

purpose: the aim of this study was to investigate the information poverty of post graduate students of birjand university with respect to its 4 indicators (information overload, information vacuum, information inequality, and digital divide) and the role of globalization in information poverty from their point of view. methodology: this study was a descriptive survey. the population consisted o...

Journal: :journal of electrical and computer engineering innovations 0
shiva taghipour department of electrical engineering, university of guilan, rasht, iran rahebeh niaraki asli department of electrical engineering, university of guilan, rasht, iran

due to the expected increase of defects in circuits based on deep submicron technologies, reliability has become an important design criterion. although different approaches have been developed to estimate reliability in digital circuits and some measuring concepts have been separately presented to reveal the quality of analog circuit reliability in the literature, there is a gap to estimate re...

F.Ghassemi and R.safari,

Distance relays are used to protect EHV and HV Transmission lines. Over the past decades many algorithms have emerged for digital distance relays. These are based on the calculation of the transmission line impedance from the relaying to fault points. In this paper a novel method for digital distance relaying is proposed. In the method the tracking procedure is implemented. The method uses the ...

Journal: :iranian journal of radiology 0
solmaz valizadeh department of oral and maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran mostafa goodini department of endodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran sara ehsani dental research center, research institute of dental sciences, shahid beheshti university of medical sciences, tehran, iran; dental research center, research institute of dental sciences, shahid beheshti university of medical sciences, tehran, iran. tel: +98-2122413897, fax: +98-2122427753 hadis mohseni department of computer engineering, shahid bahonar university of kerman, kerman, iran fateme azimi department of oral and maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran hooman bakhshandeh cardiovascular intervention research center, rajaie cardiovascular medical and research center, tehran university of medical sciences, tehran, iran

conclusions the designed software was able to detect a significant number of dentin caries and acceptable measuring of the depth of carious lesions in enamel and dentin. however, the software had limited ability in detecting enamel lesions. background radiographs, adjunct to clinical examination are always valuable complementary methods for dental caries detection. recently, progressing in digi...

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