نتایج جستجو برای: taper constant
تعداد نتایج: 221061 فیلتر نتایج به سال:
A numerical method is developed for calculating the buckling loads of tapered columns of regular polygon cross-section with constant volume and both clamped ends. The linear, parabolic and sinusoidal tapers are considered in numerical examples. From the numerical results, the strongest columns by the taper types and side numbers of regular polygon cross-sections are identified.
Background and Aim: Tapering with herbal remedies may decrease the time for soft tissue injury recovery. In the present study, we investigated the effect of ethanolic extract of Nigella Sativa (NS) consumption during the taper period on hypoxia-inducible factor-1α and exercise-induced bronchial changes. Methods: A total of 60 male Wistar rats (five weeks old) were randomized to one of two group...
Background and Aims : According to the common application of non-metal prefabricated posts in dentistry and lack of enough information about the stress distribution in the root canal walls by these posts, this study was performed to compare the effect of two simple taper and double taper posts on the stress distribution on root canal walls by photo elastic method . Materials and Methods: Th...
We evaluated whether patterns in hydraulic architecture increase transport efficiency. Five patterns are identified: area-preserving branching; variable trunk versus twig sap velocity; distally decreasing leaf specific conductivity (K(L)) and conduit diameter; and a decline in leaf specific conductance (k(L)) of the entire plant with maturation. These patterns coexist in innumerable combination...
زمینه و هدف: باتوجه به کاربرد فراوان پست های غیرفلزی پیش ساخته در دندانپزشکی امروز و عدم وجود اطلاعات کافی در زمینه نحوه پخش استرس آنها در دیواره کانال دندان، این تحقیق با هدف مقایسه تأثیر دو نوع پست فایبر simple taper و double taper بر توزیع تنش بر دیواره های کانال ریشه دندان به روش فتوالاستیک انجام شد. روش بررسی: این تحقیق به روش experimental در سیستم فتوالاستیک انجام شد. در این تحقیق دو نو...
Introduction: Adaptation to attitude is a complementary exercise to increase athletes' fitness and physiological performance. The present study investigated the effect of high intensity interval training at the hypobaric hypoxia conditions on weight changes and endurance performance test in rats following a three-weeks tapering period. Materials and Methods: In this experimental study, 25 m...
the aim of this study was to investigate the effect of a period of interval training and step taper on weight changes and endurance performance in male rats during puberty. in this experimental study, 40 male wistar rats (3 weeks old) were randomly divided into exercise and control groups. after 6 weeks of incremental interval training, exercise group was divided in to 3 groups of 3-week taper ...
Introduction. The purpose of this study was to compare the taper variation in root canal preparations among Twisted Files and PathFiles-ProTaper .08 tapered rotary files to current standards. Methods. 60 root canals with severe angle of curvature (between 25° and 35°) and short radius (r < 10 mm) were selected. The canals were divided randomly into two groups of 30 each. After preparation with ...
BACKGROUND The association between buprenorphine taper duration and treatment outcomes is not well understood. This review evaluated whether duration of outpatient buprenorphine taper is significantly associated with treatment outcomes. METHODS Studies that were published in peer-reviewed journals, administered buprenorphine as an outpatient taper to opioid-dependent participants, and provide...
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