منابع مشابه
Experiments on dowel-type timber connections
Dowel-type connections are commonly used in timber engineering for a large range of structural applications. The current generation of design rules is largely based on empiricism and testing and lacks in many parts a stringent mechanical foundation. This often blocks an optimized use of the connections, which is essential for the design of economically efficient structures. Moreover, it severel...
متن کاملSealing ability of three fiber dowel systems.
PURPOSE To study the sealing ability of two new fiber dowel systems. MATERIALS AND METHODS Thirty-six extracted single-rooted teeth were endodontically treated and randomly assigned to two new fiber dowel systems and a control group: (1) an E-glass-based dowel, everStick-POST, cemented with ParaCem Universal DC resin cement (EV); (2) a glass-fiber dowel, RelyX Fiber Post, cemented with RelyX ...
متن کاملClinically significant factors in dowel design.
When a method of intracoronal reinforcement is selected, many factors must be weighed. The hazards include (1) the induced stresses and the risk of fracture during placement of the dowel, (2) the probability of root perforation during post space preparation, (3) the wedging action of tapered dowels, and (4) the incidence of fracture with self-threading pins in devitalized teeth. The amount of t...
متن کاملReversed Cyclically Loaded Dowel-Type Fasteners
In contrast to nailed connections, little research has been done on bolted connections using a reversed cyclic loading scheme, although cyclic loading provides important information about energy absorption and damping properties, which is essential when analyzing seismic performance. Dowrick (1986) noted that the hysteretic characteristics for the primary connection of a subassembly govern its ...
متن کاملDual fibular allograft dowel technique for sacroiliac joint arthrodesis
STUDY DESIGN Retrospective case series. OBJECTIVE To assess fusion rates in patients with sacroiliac joint (SIJ) pain following a minimally invasive technique using fibular dowel allograft. METHODS Thirty-seven consecutive patients (mean age: 42.5 years [range, 23-63 years]) with SIJ pain treated with 38 minimally invasive elective SIJ arthrodeses were retrospectively reviewed using char...
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ژورنال
عنوان ژورنال: Nihon Hotetsu Shika Gakkai Zasshi
سال: 1964
ISSN: 1883-177X,0389-5386
DOI: 10.2186/jjps.8.162