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1 | It is described how to produce polyolefines and pol-yethers from thermoplasts by sulphation of polystirol. The polystirol is introduced into the propilen in the pro¬portion of 5 through 15% in mass. The largest static exchange capacity belongs to the fiber obtaind by treating it with a sulfic acid of 93% concentration under temperature of 100-105 grad.C. The acheived purification coeffitient for Cz-137 is near to that acheived on ion-exchanging material of КУ-2-10 type. | 949 | ||||
2 | The problem of quality is a central one in the education at its different levels. The activity of monitoring centres concerning the quality of education shows that the adequate and continuous diagnostics of a training process becomes more and more meaningful stimulus for the personal, intellectual, professional and creative development of schoolchildren and students in secondary and higher educational institutions. The majority of systems for the knowledge quality control is focused only to the estimation of final results of training. Here we offer a technique, which allows to control the process of mastering the basic parameters of knowledge among the students' on the course of general physics. | 997 |