A training technique in the art of creative thinking by the use of a microcomputer system has been investigated. The training of thinking. is carried out by applying the technique, which is acombination of hardwares of digital electronics and softwares, to problems found everywhere in our daily life. As a typical problem, the electrical automatic washing machine is simulatedby a certain number of electronical components. The hardware and software both have elementary simple module structures. The elementary circuits used in the hardware are constructed by components which are easily available on the market. The training procedure of the software for the data structures of three type, such as linear, planer and time-sequential-functional data are given in a flowchart of the module structure. Effectiveness of the training can be seen when the student's unique idea is expressed by the use of this technique which is gained through training.
Periodic generation of discharge products were studied with the use of an infrared spectrometer in a cylindrical discharge tube. The results are as follows. Among the constituents of gaseous products by discharge in air, the generation and extinction of both HNO3 and NO2 were repeated periodically with the same period as that of the discharge current in spite of the constant applied voltage. The periodic characteristics were found to be a function of discharge current, but it was not the dominant cause of the periodic characteristics. The decomposition of HNO3 were not found to depend on NO2 but to depend on NO. It is suggested that the existence of a certain minimum amount of NO in the discharge appears to be an important factor in determining the periodic characteristics.
Five Cu-Zn alloys with different compositions were made into wire shape. The electrical resistivity of these samples was measured in the temperature range from 100K to 0.027K. Temperature dependence of the resistivity and the relation between the resistivity and the composition were obtained. At very low temperatures, Kondo effect for these samples was examined precisely. The results obtained could be of important value towards the develop-ment of the resistive SQUID assembled into a noise thermometer based on the Josephson effect.