نتایج جستجو برای: newtons method
تعداد نتایج: 1630280 فیلتر نتایج به سال:
Aim: In this study was evaluated the fracture resistance of endodontically treated maxillary premolars restored with different restorative materials. Methods: Sixty were submitted to same mesio-occlusal-distal cavity preparation, endodontic treatment and divided into 5 groups (n = 10): Coltosol Group – GCO calcium silicate material; Glass Ionomer Cement GGIC, Maxxion R; Modified GMGIC, Gold Lab...
in iran we already use laminate tubes only in cosmetics industry. laminate tube manufacturers via using the most modern technology of the world, faced with the laminate tube market being saturated in cosmetics industry for packaging the cosmetic creams and toothpaste. but considering the great food market and therefore laminate tube features such as beautiful packaging, ease of use for the fina...
دیوارهای خاک مسلّح ، دیوارهای مقرون به صرفه ای هستند که امروزه کاربرد زیادی در پروژه های عمرانی دارند. پایداری دیوارهای خاک مسلّح از دو جنبه پایداری خارجی و پایداری درونی مدّ نظر است. پایداری درونی دیوار شامل پایداری در برابر گسیختگی و بیرون کشیدگی مسلّح کننده ها می باشد. جهت بررسی پایداری درونی دیوار بایستی نیروی مسلّح کننده ها محاسبه شود. برای محاسبه این نیروها روش های مختلفی ارائه شده که در این ت...
the purpose of this study was the relationship between problem – solvi ability with fdi cognitive style of students.the research method was correlation method. for data analysis pearson test was used. statistical society in this research was all the students of alligoodarz city in 1391-92 year.to sampling of statiscal population was used sampling multi-stage random the size of sample selected 2...
a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...
The aim of this in vitro study was to investigate three different cements for their suitability provide semi-permanent cementation, and compare the retention forces implant-supported single crowns (SC) three-unit fixed dental prostheses (FDP) luted with these cements. Twenty-four methacrylate models were supplied implants/abutments each simulate condition SCs/FDPs. Cobalt-chromium frameworks fa...
Abstract OBJECTIVES This study was conducted to measure suture tie-down forces and evaluate cyclic contractile (CCFs) in beating hearts after undersized 3-dimensional (3D) rigid-ring tricuspid valve annuloplasty (TAP). METHODS Eight force transducers were attached the 3D rigid TAP ring. Segments 1 8 from mid-septal anterior-septal commissural area a counterclockwise order. Two-sizes-down ring T...
• Latex balloons act like plastic in the environment. We quantified balloon degradation freshwater, saltwater and compost. Degradation was equivocal: retained original size shape. Mass change, elasticity FTIR spectra varied among water compost treatments. Balloons will continue to persist as anthropogenic debris threaten wildlife. are a poorly-studied aspect of pollution that affects wildlife s...
Abstract. The operating temperature of the transmission unit is noted to affect its reliability and can serve as a diagnostic criterion. It proposed diagnose technical condition by in friction zone order take into account influence air temperature, solar radiation heating adjacent heat-producing objects. (Research purpose) To ensure bearing controllability based on thermal load study. (Material...
today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...
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