Search

Radiation-induced decomposition of water in the BeO-adsorbed H2O system at room temperature (T = 300 K) under the conditions of γ-irradiation for different times was studied by Fourier IR spectroscopy. The water adsorption onto BeO was found to occur by the molecular and dissociative mechanisms. Intermediate active products of radiation-induced heterogeneous decomposition of water, beryllium hydrides and hydroxy groups, were detected. The highest radiation-chemical yield of molecular hydrogen, G(H2), was reached at the BeO particle size d ≤ 4 μm.

Ethyl 3,3,5,5-tetracyano-2-hydroxy-2-methyl-4,6-diphenylcyclohexane-1-carboxylate was synthesized for the first time by three-component condensation of benzaldehyde with ethyl acetoacetate and malononitrile in the presence of trichloroacetic acid. The product structure was proved by X-ray analysis.

The economy of energy conservation requires harmonizing the interests of energy producers and consumers. Such an agreement is possible in this case that the resource capabilities of the manufacturer and energy conservation of the consumers are considered simultaneously and on a unified basis. Investments should be directed to where minimal costs of produced or saved energy are ensured. With this approach, the demand for energy resources is provided at the cost-effective manner.

The article discusses the problems of waste disposal methods that do not cope with the task of environmentally friendly disposal of municipal solid waste (MSW). The comparison of destruction and thermal destruction methods (plasma gasification in particular) are given.

The distinctive characteristics of giftedness in the field of engineering and natural sciences are highlighted. The problems of intellectual giftedness are considered. The application of the projective method of diagnosing divergent thinking to determine endowments in the field of engineering and natural sciences, taking into account its adaptation, is substantiated.

the method of the university students’ engineering thinking development has been studied in the article, the experience of major universities of Germany implementing master programs in the field of sustainable resource management and waste management has been analyzed, the reasonableness of leading educational practices application by the specific topic lectures, the problem situations analysis, the logic of the engineering problems formulation has been substantiated.