University of Missouri bulletin. Engineering reprint series
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Item Pressure changes at open junctions in conduits(University of Missouri, 1959) Sangster, William M.; Wood, Horace W.; Smerdon, Ernest T.; Bossy, Herbert G."This paper contains the results of an analytical and experimental investigation of the effects of open junctions on the magnitude of pressure changes in closed conduits flowing full. Junctions of rectangular, square, and round plan were studied. Data concerning the performance of such junctions have been extremely meager in the past and designs have therefore been based on rather arbitrary procedures. The present paper furnishes data which afford the means for a rational hydraulic design of these structures."--Synopsis.Item Dewatering rates for digested sludge in lagoons(University of Missouri, 1960) Jeffrey, Edgar A."Digested sludge lagoons were originally considered temporary sludge storage devices; however, it was found that with prolonged storage a lagoon became an effective drying unit. Since they provide one of the more economical methods of dewatering digested sludges, they are being used frequently in place of other dewatering methods. Research is expected to improve methods of design and operation and minimize the disadvantages associated with digested sludge lagoon operation."--Page 1153.Item The mutual impedance of perpendicular half-wave antennas(University of Missouri, 1960) Capps, D.R.; Waidelich, D.L.The mutual impedance of two coupled linear antennas is needed to obtain the radiation impedance of an array of linear antennas and to determine the effect of one antenna upon a neighboring antenna, for example, the effect of a transmitting antenna upon an adjacent receiving antenna. Much work has been done on two parallel half wave antennas, but little quantitative data are available on skew antennas. The work presented in this paper is concerned with the mutual impedance of two half wave antennas at right angles. The method employed in calculating the mutual impedance was that of Carter and the resulting integrals were evaluated by an approximation method using a digital computer. The results are presented as curves in rectangular form for both the resistive and reactive components for the complex values of the mutual impedance. The curves indicate that the maximum coupling for two antennas at right angles occurs when the two antennas form an approximate L-shape.Item A statistical definition of perfect mixtures of solids of different sizes(University of Missouri--Columbia, 1966) Hyun, Kun Sup; de chazal, L.E. Marc"When mixing solids, it is desirable to be able to evaluate the performance of a mixer in terms of its ability to produce mixtures that approach the theoretical limit of uniformity. Although a satisfactory correlation exists for mixtures where the particles are of uniform size, none has yet been developed for multisized particles. A mathematical definition of a perfect mixture of three sizes of particles is proposed. The principles employed can be extended to any number of sizes, but the complexity of the equations increases rapidly. Agreement with experimental results appears substantially better than that obtained by previous investigators."--Page 105.Item Steady-state waves on transmission lines(University of Missouri, 1951) Waidelich, D.L.