منابع مشابه
Parallel Simulation of Bevel Gear Cutting Processes with OpenMP Tasks
Modeling of bevel gear cutting processes requires highly flexible data structures and algorithms. We compare OpenMP3.0 tasks with previously applied approaches like nesting parallel sections and stack based algorithms when parallelizing recursive procedures written in Fortran 95 working on binary tree structures.
متن کاملUltrasonic root-end preparation. Part 1. SEM analysis.
Preparations of apical cavities in resected root ends using rotary burs, with and without citric acid rinse, and ultrasonic tips were compared based on the presence or absence of superficial debris and smear layer. Three groups of 20 extracted teeth each were prepared as follows; I, a size 010 round bur was used to prepare an apical cavity 2-3 mm down the long axis of the root; II, treatment as...
متن کاملFZG Gear Efficiency and Pin-on-Disc Frictional Study of Sintered and Wrought Steel Gear Materials
Load-dependent power loss is a major contributor to power loss in gear transmission systems. In this study, pin-on-disc frictional and FZG efficiency experiments were conducted with powder metallurgy (Distaloy AQ ? 0.2 %C) and wrought material (16MnCr5) combinations. The gear mesh torque loss from gear efficiency tests and the friction coefficient from the pin-on-disc tests were then compared. ...
متن کاملInfluence of Laser Cutting Parameters on CFRP Part Quality
Material processing of Carbon Fibre Reinforced Plastics (CFRP) parts by means of shape-cutting or jet-cutting technologies is state of the art today. These processes still perform in some applications with lack of part quality such as delamination and low productivity. Therefore, laser cutting processes have a great potential in material processing of CFRP. Laser process parameters have to be a...
متن کاملCutting efficiency of apical preparation using ultrasonic tips with microprojections: confocal laser scanning microscopy study
OBJECTIVES The purpose of this study was to compare the cutting efficiency of a newly developed microprojection tip and a diamond-coated tip under two different engine powers. MATERIALS AND METHODS The apical 3-mm of each root was resected, and root-end preparation was performed with upward and downward pressure using one of the ultrasonic tips, KIS-1D (Obtura Spartan) or JT-5B (B&L Biotech L...
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ژورنال
عنوان ژورنال: Transactions of the Japan Society of Mechanical Engineers
سال: 1959
ISSN: 0029-0270,2185-9485
DOI: 10.1299/kikai1938.25.479