Yurenka


T. Sakamoto, F. Shiga. A. Yasuhara, D. Uchiyama. Y. Kondo, and H. Yaraanaka, Synthesis, 746 (1992).  [c.274]

H. Yaraanaka, M. An-naka, Y. Kondo. and T. Sakamoto. Chem. Pharm. Bull., 33, 4309 (1985).  [c.280]

A milestone measurement in carbon science was Bacon s production of graphite whiskers. These were grown in a DC arc under conditions near the triple point of carbon and had a Young s modulus of 800 GPa and a yield strength of 20 GPa. If we assume that these whiskers, which Bacon considered to be a scrolllike structure, had no hollow core in the center, then the same scaling rule, eqn (1), can be used for the yield strength of carbon nanotubes. As a practical means of estimating yield strengths, it is usually assumed that the yield strength is proportional to the Youngs modulus (i.e., Yrnax = /Sf), where /3 ranges from 0.05 to  [c.144]

A. S. Tetelman, Fracture Processes in Fiber Composite Materials, in Composite Materials Testing and Design, Steven Yurenka (Chairman), New Orleans, Louisiana, 11-13 February 1969, ASTM STP 460, American Society for Testing and Materials, 1969, pp. 473-502.  [c.363]

A. S. Tetelman, Fracture Processes in Fiber Composite Materials, in Composite Materials Testing and Design, Steven Yurenka (Chairman), New Orleans, Louisiana, 11-13 February 1969, ASTM STP 460, American Society for Testing and Materials, 1969, pp. 473-502.  [c.363]

Griew and Tucker (1958) foimd that in a machine shop, older men appeared to achieve the same results with fewer control movements than younger men working on similar machines. In a study of pillar drilling (Murrell et al., 1962), the performance of older inexperienced workers was substantially worse than yormg inexperienced workers, but the performance of older professional drillers obtained from industry was slightly better than that of yoimg drillers. This demonstrates the role of experience in compensating for increasing age. However, this compensation only occurs up to a point, and good management should identify those aspects of the task which make the greatest demands upon the older worker and if possible modify the tasks accordingly. An extensive review of the effects of age on performance is available in Small (1987).  [c.142]


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Machanics of composite materials (1998) -- [ c.363 ]