Results 231 to 240 of about 5,559,545 (283)
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Wear rates of posterior composite resins
The Journal of the American Dental Association, 1986The wear rates of nine posterior composite resins were determined for a period of up to 3 years. The wear rates observed depended on the method used for evaluation. A quantitative method of evaluation showed that the wear rates decreased with time. With the use of the quantitative measurements obtained at the end of 6 months after insertion, it was ...
K F, Leinfelder +2 more
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One‐Minute Wear‐Rate Measurement
Macromolecular Rapid Communications, 2005AbstractSummary: Single‐asperity wear measurements were performed on small quantities of polyethylene with different molecular weights. Experiments could be performed on a surface area of 25 × 3000 μm2. A quantitative value of wear rate could be obtained that was proportional to macroscopic results relating the wear rate to the molecular weight ...
Schaake, R.P. +3 more
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Wear, 1971
Abstract The wear rates of hemispherical and cylindrical specimens initially decrease with distance slid; the pattern of wear behaviour of such specimens however, is relatively simple. The wear rate of metals depends upon their dynamic rather than their static hardness.
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Abstract The wear rates of hemispherical and cylindrical specimens initially decrease with distance slid; the pattern of wear behaviour of such specimens however, is relatively simple. The wear rate of metals depends upon their dynamic rather than their static hardness.
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Wear rates of regular and tempered composites
Journal of Dentistry, 1997One of the reasons for using composite inlays is that restorations can be tempered. Composites tempered with heat and light have, at least initially, an enhanced degree of cure which, it is claimed, improves their physical properties, including wear resistance.
Wassell RW, McCabe JF, Walls AWG
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Rate of Wear in Total Hip Replacement
Clinical Orthopaedics and Related Research, 1975The wear of high molecular weight polyethylene sockets was measured on radiographs, over a period of 9 to 10 years, in a group of patients whose ages averaged 73.3 years at the end of the period. The average rate of wear was 0.15 mm/year and 68 per cent of patients followed this pattern. Wear more than 2.5 mm in 10 years occurred in 15 per cent.
J, Charnley, D K, Halley
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Wear rate calculation in the four-ball wear test
Wear, 1989Abstract Experiments were conducted to determine the wear rate of lubricated sliding surfaces using a variation of the standard ASTM D 4172-82 four-ball wear test. The relative displacement between the balls was recorded continuously during these tests using a linear variable differential transducer (LVDT) and a data acquisition system.
Michael S. Wright +2 more
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Proceedings of the 48th Design Automation Conference, 2011
The limited write endurance of phase change random access memory (PRAM) is one of the major obstacles for PRAM-based main memory. Wear leveling techniques were proposed to extend its lifetime by balancing writes traffic. Another important concern that need to be considered is endurance variation in PRAM chips.
Jianbo Dong +4 more
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The limited write endurance of phase change random access memory (PRAM) is one of the major obstacles for PRAM-based main memory. Wear leveling techniques were proposed to extend its lifetime by balancing writes traffic. Another important concern that need to be considered is endurance variation in PRAM chips.
Jianbo Dong +4 more
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Journal of Basic Engineering, 1965
This paper contains exhaustive analytical data on factors contributing to wear. The wear of a deformed body interacting with an absolutely rigid rough solid is considered. It is believed that wear results from the deformation of a body due to geometrical and mechanical factors and due to the adhesion bonds thereof.
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This paper contains exhaustive analytical data on factors contributing to wear. The wear of a deformed body interacting with an absolutely rigid rough solid is considered. It is believed that wear results from the deformation of a body due to geometrical and mechanical factors and due to the adhesion bonds thereof.
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Dental wear, wear rate, and dental disease in the African apes
American Journal of Primatology, 2010AbstractThe African apes possess thinner enamel than do other hominoids, and a certain amount of dentin exposure may be advantageous in the processing of tough diets eaten byGorilla. Dental wear (attrition plus abrasion) that erodes the enamel exposes the underlying dentin and creates additional cutting edges at the dentin‐enamel junction ...
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On the wear rate of an Sn11Sb5.5Cu Babbitt
Journal of Friction and Wear, 2017The microstructure of β-phase of Sn11Sb5.5Cu Babbitt produced by casting and liquid forging has been analyzed by optical and scanning electron microscopy using EBSD analysis. It has been established that a significant decrease in the wear rate of Babbitt produced by liquid forging is caused by generation of fine grain structure in the particles of the ...
A. Kh. Valeeva +2 more
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