نتایج جستجو برای: cerec system
تعداد نتایج: 2231122 فیلتر نتایج به سال:
امروزه ، استراتژی ها و روشهای مختلفی توسط مترجمان در زمینه ترجمه متون به کار گرفته می شود. یکی از این روشهای رایج، استفاده از شیفت ها است. مطالعه ی پیش رو کاربرد استراتژی شیفت ها در ترجمه بروشورهای تبلیغاتی مربوط به محصولات مراقبت شخصی از زبان انگلیسی به فارسی را بر اساس مدل کتفورد (1965) مورد بررسی قرار داده است. هدف این مطالعه بررسی میزان استفاده از این استراتژی از طریق مقایسه متون زبان مبدا ...
purpose a metabolic abnormality such as obesity is a major obstacle in the maintenance of the human health system and causes various chronic diseases including type 2 diabetes, hypertension, cardiovascular diseases, as well as various cancers. this study was designed to summarize the recent scientific knowledge regarding the anti-obesity role of curcumin (diferuloylmethane), which is isolated f...
in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...
OBJECTIVES This study evaluated the strength and fracture pattern of monolithic posterior CAD/CAM crowns hypothesizing that zinc-phosphate cemented lithium disilicate crowns might show the same fracture strength as adhesively cemented crowns. METHODS Two sets of monolithic posterior crowns each with uniform occlusal and lateral wall thickness of 1.5mm were fabricated from three types of block...
در یک تقسیم¬بندی کلّی، اقتصاد یک کشور را می¬توان به دو بخش رسمی و غیر قابل مشاهده تقسیم¬بندی کرد. ملاک این تقسیم¬بندی، قابلیت ثبت و گزارش فعالیت¬های اقتصادی مورد نظر به¬طور رسمی است. در واقع، به¬دلایل متعددی، ابعادی از فعالیت¬های اقتصادی چه در بخش تولید و چه در بخش مبادله از دید منابعِ ثبت و گزارش¬دهی پنهان می¬مانند. این فعالیت¬ها تحت عناوین مختلفی از جمله اقتصاد غیر رسمی، اقتصاد پنهان و اقتصاد...
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
the rehabilitation of heavily abraded occlusion in patients with parafunctional habits is a restorative challenge to the dentist. use of all-ceramic systems in such cases is widely considered, but uncertainty over their resistance hinders their broad use. the authors would like to illustrate a possible approach by mixing two all-ceramic systems based on zirconium dioxide and lithium disilicate....
Maria Doukantzi, Dr Med Dent/Philippe Mojon, Dent/Ana Todorovic, Dent/Najla Chebib, Dent/Bjarni Elvar Pjetursson, Prof Dent, PhD/Sabrina Maniewicz, Dent/Irena Sailer, Dent: Purpose: To investigate the differences in accuracy (ie, trueness and precision) of five different optical impression systems. Materials Methods: The following systems was tested: (1) CEREC Bluecam (BL); (2) Omnicam (OM); (3...
Objective: The applications of single-structure fiber-reinforced composite (FRC) in restorative dentistry have not been well reported. This study aimed to clarify the static mechanical properties of anterior crown restorations prepared using two types of single-structure FRC. Materials and methods: An experimental crown restoration was designed for an upper anterior incisor. The restorations we...
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