Machines which have been used successfully for the teaching of work measurement practices are described. Although designed to shorten the period of instruction for beginners) they appear to be suitable for postgraduate ...

This interim note presents an analysis, using an energy method, of the thermal stresses in a finite length box structure resulting from uniform skin heating. The solution depends upon an eighth order differential equation ...

This paper describes the investigation of a number of possible semiconductor devices which can be used for the detection of radioactive particles. The sensitivities of two types of transistor (a p-n-p alloy junction and ...

Two port network representations are derived for the general linear magnetic and electric field transducers. The constraints imposed by linearity requirements are discussed. It is shown that for the most general form ...

Experiments to determine the effect of various operating and design parameters on the performance of a vortex tube are described in College of Aeronautics Note No. 30. The present note gives additional performance data ...

The injection of water into a spark-ignition piston engine tends to reduce both the power and the tendency to knock. Because of the latter effect the conditions of operation can be made more severe in order to realise ...

The writer was in Germany from April 4th. to April 16th. 1955 for discussions with the headquarters' staff of the REFA Organisation, and practitioners of the REFA techniques in various factories. This report deals with ...