نتایج جستجو برای: restoration

تعداد نتایج: 51103  

Journal: :amirkabir international journal of electrical & electronics engineering 2015
m. kosari s. h. hosseinian a. mahmoudi

variation of frequency and voltage by load changes in a microgrid is a challenge in droop control method. centralized restoration frequency or voltage in a microgrid requires communication link and therefore affects the advantage of decentralized droop control such as reliability, simplicity and inexpensiveness. this paper proposes a decentralized method that restores the frequency of a microgr...

Journal: :journal of dental materials and techniques 0
behjat-al-molook behjat-al-molook ajami dental material research center, department of pediatric dentistry, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) masoumeh ebrahimi dental material research center, department of pediatric dentistry, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) abbas makarem dental material research center, department of pediatric dentistry, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) taraneh movahhed dental material research center, department of pediatric dentistry, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) amir reza motamedi dentist, mashhad, iran

introduction: in restorative dentistry, selecting the proper material is an important factor for clinical success. the objective of this study was clinical evaluation of survival time of three tooth color materials in primary anterior teeth. methods: in this interventional clinical trial study, 94 deciduous anterior teeth (36 teeth in boys, 58 teeth in girls) belonging to 3-5 year old children ...

Journal: :international journal of environmental research 0
p. gallardo department of agronomy, university of almeria, spain j. salazar department of economics and business, university of almeria, spain f. j. lozano department of agronomy, university of almeria, spain m. c. navarro department of economics and business, university of almeria, spain c. asensio department of agronomy. university of almeria, spain

the influence of wind erosion on soil productivity was studied applying fan-forced wind in a wind tunnel located in the campo de nijar area in se spain where the main crops are cereals. wind erosion is highly variable depending on the type of soil (aric-haplic calcisols, aric-calcaric cambisols or aric-calcic luvisols, according to iuss working group wrb, 2014) and the time elapsed since the la...

Journal: :journal of dentistry, tehran university of medical sciences 0
h afshar associate professor, department of pediatric dentistry, school of dentistry, tehran university of medical sciences, tehran, iran. a jafari m r khami s razeghi

this study addresses the question of whether conservative methods of restoration may be applied efficaciously in permanent posterior teeth with proximal lesions and intact occlusal preventive resin restoration (prr). the purpose of the present study was to assess the microleakage at amalgam-composite interface and composite-composite interface in permanent tooth with prr.thirty-five premolar te...

Journal: :هنرهای تجسمی 0
محسن قانونی کارشناسی ارشد مرمت آثار و اشیا فرهنگی و تاریخی، کتابخانه، موزه و مرکز اسناد مجلس شورای اسلامی، تهران مهدی حسینی استاد دانشکده هنرهای تجسمی، دانشگاه هنر، تهران، ایران حمید فرهمند بروجنی عضو هیئت علمی دانشکده مرمت، دانشگاه هنر، اصفهان، ایران

abstract aesthetic viewpoints and philosophical concepts are effective factors which can conduct artistic movements. the impact of philosophical basis on the cultural, social, historical and artistic tendencies is to extent that the mentioned philosophical basis is specified as detailed and separated chapters. among the development and exposition of the philosophical concepts of art area, there...

ژورنال: مجله دندانپزشکی 1994
خوشخونژاد, علی اکبر,

Nowadays, due to recent developments and researches in dental science, it is possible to preserve and restore previously extracted cases such as teeth with extensive caries, fractured or less appropriate cases for crown coverage as well as teeth with external perforation caused by restorative pins. In order to restore the teeth with preservation of periodontium, we should know thoroughly physio...

Journal: :journal of rangeland science 0
jalil ahmadi ferdowsi university of iran mohammad farzam ferdowsi university of mashhad amir lagzian ferdowsi university of mashhad

fire is one of the incorporate vegetation management practices for grasslands and semi-arid rangelands. it may affect symbiotic relationship between range plants and mycorrhiza. accordingly, this research was aimed to investigate the effects of a spring prescribed fire on the symbiotic relationships between mycorrhiza and 6 plant species. the study was conducted in a semi-arid steppe rangeland ...

Journal: :journal of dental research, dental clinics, dental prospects 0
firoz pouralibaba mohammad joulaei atabak kashefimehr farzaneh pakdel zahra jamali ali esmaeili

background and aims. the present study evaluated the most common reasons for replacing amalgam restorations in a university clinic. materials and methods. a total of 217 restorations which needed to be replaced were clinically and radiographically evaluated in a period of 4 months. the frequencies of reasons for replacing amalgam restorations were calculated: the assessed items included recurre...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
رویا امینیان roya aminian dental school, shahid beheshti university of medical science, tehran-iran ([email protected])دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی نغمه جماعت لو naghme djamaatloo

background & aim: repair or replacement of restorations is one of the main necessities for health promotion. however, it has its own physical, psychological and economical side effects. the aim of this study was to investigate the prevalence of factors causing restoration replacement or repair. methods & materials: a non probable sampling was used for this cross – sectional observational descri...

Journal: :dental research journal 0
sheeba saini deepak sharma

a virtual absence of palliative, preventive and restorative care characterizes juvenile oral health care in most of the developing and underdeveloped countries. consequently, carious cavities remain untreated, which leads to pain, discomfort and functional limitation. it further, impacts negatively upon general health and cognitive development apart from causing decreased masticatory efficiency...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید