Now showing items 51-60 of 79
An application of analog computer techniques to the problem of interpretation of the contact log
It is hoped that the following report may serve as the groundwork or basis for further applications of analog computer techniques to the field of electrical well logging interpretation. The author feels that this type of ...
An investigation of certain problems in the use of sample cores in analog simulation of magnetic amplifier circuits
In order to establish the conversion factors between an actual circuit and its computer simulation, the simple half wave magnetic amplifier-circuit was used. The Computer simulation of this circuit requires three operational ...
Analysis of low temperature chromatographic separation of methane-propane mixtures with N-decane on celite
An outline of the history of chromatography is presented, reviewing briefly the existing theories. The theory of Jame sand Martin for gas liquid partition chromatography and the extension to their theory by Litlewood and ...
A study of the quasi-frictional forces resulting on serrated clamping elements
It is intuitive that a clamping element will grip better if the surface is provided with teeth which penetrate Into the surface of the clamped object. This paper is concerned with the problem of determining a quantitative ...
A field method of determining soil permeability
The permeability of soil -- its capacity to transmit water under pressure -- may be determined by indirect or direct laboratory methods or by field methods. Most field methods are useful only below the water table, but in ...
A two dimensional photoelastic study of stress and load distribution in a rock bit cutter
A two dimensional photoelastic analysis was carried out on a rock bit cutter shell. The magnitude of the principle stresses in the cutter shell and the load distribution in the roller bearings was determined. Some conclusions ...