نتایج جستجو برای: cure

تعداد نتایج: 29074  

Journal: :علوم و تکنولوژی پلیمر 0
میرحمیدرضا قریشی مهدی رافعی قاسم نادری غلامرضا بخشنده محمود نصیری

afinite element model is developed for simulation of the curing process of a thick axisymmetric rubber article reinforced by metal plates during the molding and cooling stages. the model consists of the heat transfer equation and a newly developed kinetics model for the determination of the state of cure in the rubber. the latter is based on the modification of the well-known kamal-sourour mode...

ژورنال: :مجله دندانپزشکی 0
مریم قوام m. ghavam محمد عطایی m. ataei فریبا بیک f. baik

اخیرا با کاربرد ترمیمهای همرنگ غیرمستقیم، تحقیقات جهت یافتن ماده مناسب جهت چسباندن این ترمیمها وسعت زیادی یافته است. سیمانهای رزینی به لحاظ استحکام، زیبایی، و ضخامت لایه ای مطلوب، کاربرد مناسبی در این زمینه دارند و انواع آنها با سیستمهای مختلف پلیمریزاسیون (شیمیایی، نوری، dual) بدین منظور توصیه شده اند؛ لیکن سیمانهای dual cure به دلیل ادعای کارخانه ها مبنی بر این که پس از قطع نور، پلیمریزاسیون ...

Journal: :علوم و تکنولوژی پلیمر 0
مهدی شیوا حسین آتشی

effect of partial natural rubber replaced with synthetic rubbers, styrene butadiene and cis butadiene, on failure and strength properties of bias tread nr/br based compound was studied by efficient and conventional sulfur curing systems and mixtures of different carbon black grades. it was observed that failure behavior comprising tear resistance and crack growth in substituted compounds droppe...

ژورنال: :مجله دندانپزشکی 0
محمد عطایی m. atai مریم قوام m. ghavam اسماعیل یاسینی e. yasini منصوره میرزایی m. mirzaei ایوب پهلوان a. pahlavan معصومه حسنی طباطبایی m. hasani tabatabaie سکینه آرامی

زمینه و هدف: پست های همرنگ غیر فلزی به واسطه سیمان رزینی و مواد چسبنده عاجی به دیواره کانال دندان می چسبند. دوام ترمیم به استحکام این اتصال وابسته است زیرا استحکام باند پست به ریشه منجر به گیر بهتر و توزیع مناسب تنش می شود. هدف از این مطالعه بررسی استحکام باند پست d.t. light توسط دو نوع سیمان رزینی self-cure و dual-cure و بررسی اثر مواد شوینده مختلف داخل کانال بر میزان استحکام باند این دو نوع س...

Journal: :jundishapur journal of chronic disease care 0
reza masoudi department of nursing, school of nursing and midwifery, ahvaz jundishapur university of medical sciences, ahvaz, ir iran heidarali abedi department of nursing, khorasgan (isfahan) branch, islamic azad university, isfahan, ir iran; department of nursing, khorasgan (isfahan) branch, islamic azad university, isfahan, ir iran. tel: +98-3115354001-9 parvin abedi department of midwifery, reproductive health research center, ahvaz jundishapur university of medical sciences ahvaz, ir iran seyed ehsan mohammadianinejad department of neurology, school of medicine, jundishapur university of medical sciences, ahvaz, ir iran

results two major themes were extracted from the analysis of the transcripts: “comprehensive caring commitment” and “patients’ medication grudge”. conclusions according to the findings, the nurses are in a unique position to care for people with ms; therefore they should be ready to provide high-quality patient care in ms patients. patients must be encouraged to study about their condition and ...

Journal: :iranian journal of medical physics 0
vahid changizi assistant professor, technology radiology& radiotherapy dept., faculty of paramedical sciences, tehran university of medical sciences, tehran, iran. mohammad ali nilforoush zadeh associate professor, dermatology dept., faculty of medicine, tehran university of medical sciences, tehran, iran. parisa kakanezhadian assistant professor of dermatology, research center professor torabinejad, esfahan, iran. homeira mardani m.sc. of biophysics, science and research branch, islamic azad university, tehran, iran.

introduction: in the present study, the effects of light cure on wound healing of mice’s skin with complete thickness were studied. materials and methods: forty male mice of nmri race were placed randomly into two groups of examination and control. under aseptic and unconscious conditions, a circular wound of 6 mm width with complete thickness of skin was made on the back of each mice. the surg...

ژورنال: مجله دندانپزشکی 2003
بانوا, سپیده, پهلوان, ایوب,

Statement of Problem: Composite reins have recently become popular for posterior teeth restorations. Gap formation and subsequent microleakage are of the complications resulting from such restorations. One of the techniques to overcome polymerization shrinkage of composite resins is sandwich technique (application of glass ionomer as a base beneath the composite resin). Since polymerization pat...

ژورنال: پژوهش در پزشکی 2010
حاجی‌زاده , ابراهیم, رحیم‌زاده کیوی, میترا, فیضی, سپهر,

Abstract Background: Although corneal graft may be rejected by the immune system of the recipient it remains as the most successful operation as compared to transplantation of other tissues. Since most patient do not reject the grafts, those who do are in the minority. This study was carried out to assess the usefulness of the cure frailty model for determining the significance of risk facto...

Journal: :journal of research in health sciences 0
ali asghar akhlaghi iraj najafi mahmood mahmoodi abbas shojaee mahmoud yousefifard mostafa hosseini

background: peritoneal dialysis is one of the most prevalent types of dialysis prescribed to the patients suffering from renal failure. studies on the factors affecting the survival of these patients have mainly used log-rank test and cox analysis. the present study aimed to investigate the risk factors affecting short- and long term survival of patients on continuous ambulatory peritoneal dial...

Journal: :international journal of advanced design and manufacturing technology 0
mahmood mehrdad shokrieh iran university of science and technology saeed akbari roknabadi iran university of science and technology

this research investigates the effect of the post-cure time on the residual stresses in laminated composites. laminated composites were made of t300 carbon fibers and epoxy resin. the post-cure process was carried out at the constant temperature of 120 °c for 6 and 12 hours for two specimens. the slitting method was employed to determine through-thickness residual stress distribution of the com...

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