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Showing papers by "Ontario Ministry of Transportation published in 1975"


Journal ArticleDOI
TL;DR: In the last decade a broad knowledge of dynamics of wall turbulence in water flow has been obtained through development of a hot-film anemometer or a hydrogen-bubble method as mentioned in this paper.
Abstract: In the last decade a broad knowledge of dynamics of wall turbulence in water flow has been obtained through development of a hot-film anemometer or a hydrogen-bubble method. One of the headmost studies in this field was done by a group of Stanford University1) under the direction of Kline who looked for the mechanism of turbulence production by means of flow visualization with the hydrogen-bubble method. Several experimental works done by use of both flow visualization and point measurements have recently brought to light turbulence characteristics of the shear flow, with aid of improved methods of data analysis. Turbulence measurments of open-channel shear flow over a smooth or rough bed were vigorously done by Raichlen2), McQuivey et al.3), Ishii et a1.4) and Imamoto5) by making use of singlesensor hot-film anemometer. It is very interesting in practice to investigate how the structure of turbulence would be influenced by hydraulic parameters such as Reynolds

118 citations


Journal ArticleDOI
TL;DR: In this paper, a mathematical theory associated with frequency and duration methods in system reliability evaluation is developed, which is based upon the concept of frequency as an expectation of the state encounter rate.
Abstract: This paper develops a mathematical theory associated with frequency and duration methods in system reliability evaluation. The approach is based upon the concept of frequency as an expectation of the state encounter rate. These concepts are then used to derive the basic conditions for mergeability which are very useful when evaluating the reliability of large systems.

33 citations


Journal ArticleDOI
TL;DR: In this article, the authors performed electrophoresis of ferricyanide treated haemolysate at pH 7 and pH 8.1 and pH 6-9.2.

20 citations


Journal ArticleDOI
TL;DR: In this paper, the authors derived the complementary formula for the frequency of system failure using tie set approach, which is based on the reliability block diagram of the network and the tie sets.

13 citations


Journal ArticleDOI
TL;DR: In this article, the eigenvalue problem of an open-ended, dielectric loaded, circular cylindrical resonator is investigated by the boundary value and numerical techniques to compute the volumetric void fraction of gas bubbles in organic oil coolants used in some modern nuclear reactors.
Abstract: The eigenvalue problem of an open-ended, dielectric loaded, circular cylindrical resonator is investigated by the boundary value and numerical techniques to compute the volumetric void fraction of gas bubbles in organic oil coolants used in some modern nuclear reactors. The resonator sensing section geometry is such that an organic coolant (or similar material) is transported through circular pipes acting as waveguides on both sides of the resonator section whose diameter is enlarged by a dielectric ring. The results are shown to be in excellent agreement with experimental data for the special case when the dielectric in the enlargement is the same the special case when the dielectric in the enlargement is the same as the transported material.

4 citations