نتایج جستجو برای: سیستم های repair

تعداد نتایج: 631209  

The present study is an attempt to investigate conversational repair phenomenon in Persian dramatic discourse and it tries to check the presence of any predominant preference for employing a specific type of repair rather than the others in the context of Persian drama. To reach the aforementioned purpose, Schegloff, Jefferson, and Sacks’s (1977) framework has been adopted and applied to Akbar ...

Journal: :iranian journal of pediatric surgery 0
mehran hiradfar associate professor of pediatric surgery. mashhad university of medical sciences- iran reza shojaeian assistant professor of pediatric surgery mahmoud reza ashab yamin assistant professor of plastic surgery. kerman university of medical sciences- iran

introduction : although many techniques have been described for reconstruction of the giant omphalocele, we present a simple , effective and safe new technique. materials and methods: we have studied 11 neonates with giant omphalocele that were treated by a new technique, umbrella repair, in sarvar pediatric hospital of mashhad, iran. in this new technique we released the skin around the omphal...

Journal: :journal of dentistry, tehran university of medical sciences 0
m. khoroushi sh. motamedi

objective: different ceramic repair systems have been reported for fractured ceramics. however, limited information is available concerning the bond strength of these systems especially after thermocycling. the aim of this in-vitro study was to determine the effect of thermocycling on the shear bond strength of composite-resin to feldspathic porcelain with and without silane pretreatment. mater...

Journal: :journal of dentistry, tehran university of medical sciences 0
m. hasani tabatabaei y. alizade s. taalim

statement of problem: in some clinical situations, repair of composite restorations is treatment of choice. improving the bond strength between one new and old composite usually requires increased surface roughness to promote mechanical interlocking since chemical bonding might not be adequate. similarly, the treatment of a laboratory fabricated resin composite restoration involves the same pro...

Journal: :research in cardiovascular medicine 0
maziar gholampour-dehaki heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran asghar zareh heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran solmaz babaki heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; department of cardiology, ludmillenstift hospital, ludmillenstraße, meppen, germany hoda javadikasgari heart valve disease research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; department of thoracic and cardiovascular surgery, cleveland clinic foundation, cleveland, ohio, usa; heart valve disease research center, rajaie cardiovascular medical and research center, vali-asr st., niayesh blvd, p. o. box: 1996911151, tehran, ir iran. tel: +1-6822192494

patients and methods previously recorded data of 231 patients who underwent surgical closure of vsd between january 2009 and january 2012 at the rajaie cardiovascular medical and research center were retrospectively reviewed. vsd surgical repair was performed using continues suturing technique in group a patients (n = 163, 70.6%) and interrupted suturing technique in group b patients (n = 68, 2...

Journal: :تحقیقات مهندسی کشاورزی 0
عباس روحانی دانشجوی دکتری ایرج رنجبر دانشیار گروه ماشین های کشاورزی دانشگاه تبریز محمدحسین عباسپور فرد استادیار گروه ماشین های کشاورزی دانشگاه فردوسی مشهد یحیی عجب شیرجی دانشیار گروه ماشین های کشاورزی دانشگاه تبریز مصطفی ولی زاده استاد گروه زراعت دانشگاه تبریز

the management of machine replacement (specifically tractors) is one of the most critical factors for performing field operations on time. therefore, tractor repair and maintenance costs must be accurately predicted. this research was carried out to evaluate the use of the regression technique in predicting tractor repair and maintenance costs. the study was conducted using empirical data on 60...

Tang, Yinghui, Wu, Wenqing, Yu, Miaomiao,

This paper studies an M/G/1 repairable queueing system with multiple vacations and N-policy, in which the service station is subject to occasional random breakdowns. When the service station breaks down, it is repaired by a repair facility. Moreover, the repair facility may fail during the repair period of the service station. The failed repair facility resumes repair after completion of its re...

Journal: :journal of family and reproductive health 0
roxana kargar department of obstetrics & gynecology, shahid beheshti university of medical sciences, tehran, iran afsaneh aghazadeh nainie department of obstetrics & gynecology, shahid beheshti university of medical sciences, tehran, iran hamid reza khoddami vishteh department of internal medicine, shahid beheshti university of medical sciences, tehran, iran

objective: to compare the efficacy of emla cream and lidocaine injection to reduce pain during episiotomy repair. materials and methods: a total of 46 primiparous women with normal pregnancy who referred for normal vaginal delivery and needed episiotomy repair were selected and randomly divided into two groups. for emla group, one hour before the estimated time of delivery, 5g of emla cream was...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1386

چکیده ندارد.

Journal: : 2022

سابقه و هدف: امروزه صنعتی شدن توسعه شهرنشینی باعث آلودگی هوا در اکثر کلان‌شهرهای جهان شده است سالانه میلیون­ ها نفر به ­علت جان خود را از دست می­ دهند. ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﻣﺤﺪود ﺑﻮدن ﺷﺒﻜﻪ اﻳﺴﺘﮕﺎه‌ﻫﺎى ﭘﺎﻳﺶ آﻻﻳﻨﺪه‌ﻫﺎى ﻫﻮا ﻏﻴﺮ اﻗﺘﺼﺎدى اﻓﺰاﻳﺶ ﺗﻌﺪاد این اﻳﺴــﺘﮕﺎه‌ﻫا سطح شهرها، دﺳﺖ‌ﻳﺎﺑﻰ ﭘﻮﺷــﺶ ﻣﻜﺎﻧﻰ زﻣﺎﻧﻰ ﻣﻨﺎﺳــﺐ برای ﻧﺸﺎن دادن ﺗﻐﻴﻴﺮات ﻏﻠﻈﺖ ذرات آلاینده ﺑﺴﻴﺎر دﺷﻮار اﺳﺖ. بر اساس پژوهش حاضر با هدف تهیه نقشه ­ها...

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