630 research outputs found
Structural-phase state and mechanical properties of submicrocrystalline titanium alloy Ti-6Al-4V obtained with use of reversible hydrogen alloying
Features of evolution of structural-phase state of titanium alloy Ti-6Al-4V at the process of submicrocrystalline structure formation using reversible hydrogen alloying have been investigated by methods of electron microscopic and X-ray diffraction analyses. Influence of hydrogen alloying on mechanical properties at stretching of submicrocrystalline titanium alloy Ti-6Al-4V in temperature interval of 293...1023 K was studied. Possible reasons of increase in ultimate and yield strength and reduction of deformation to destruction of submicrocrystalline alloy Ti-6Al-4V in temperature interval 873...1023 K at hydrogen alloying in quantity 0,08...0,33 mas. % were discusse
Multicultural University Education and Museum Pedagogy
© Published under licence by IOP Publishing Ltd. The specifics of the educational process in the museum are revealed. The experience of using the multicultural educational space of the museum for developing non-humanitarian directions of the university of general cultural competencies is expounded. The emphasis is on the formation of the ability to tolerate social, ethnic, confessional and cultural differences
The role of language representation of the time model in the process of meaning creation
The aim of the article is to demonstrate the language picture of the world, which owes its structural integrity to its relational framework. The archetype “time” is central to the Christian mythology, in fairy tales and other linguocultural artefacts. The thought-language essences representing the category TIME in the modern German language, connect different time modes (past, present, future), allowing to distinguish different worlds. The memory of the ways of the development of the human soul is concentrated in the
The characterization soft and heterogeneous surfaces with map of elasticity properties obtained by atomic force microscopy method
Study of the Effect of Radiation Dose Rate on the Stability of Various Organochlorine Pesticides
Abstract irradiated at dose of 10 kGy with dose rate varied from 8.3 ⋅ 10−3 up to 2.33 Gy/sec. It is found that the shape of the degradation degree relationship on dose rate is similar for different OCPs in polar and non-polar solvents (hexane, 2-propanol) and does not depend on the concentration of initial substance. The maximum of the OCP degradation degree is registered in the dose rate range of 0.23-0.43 Gy/sec. A lognormal distribution is considered as a function best fitting the experimental data. The OCP degradation mechanism could be explained by the ratio of active and recombined particles along the gradient of ionizing radiation intensity.
Keywords: organochlorinated pesticide; irradiation, dose and dose rate of gammaradiation; radiation degradation; functional dependenc
ALTERATION OF ACTIVE SUBSTANCE CONTENT IN "HEXACHLORAN DUST" PESTICIDE FORMULATION AT EXPOSURE TO ELECTRON BEAM
The most popular methods of organochlorinated pesticides (OCP) destruction, which are based on thermal dechlorination, are not ecologically safe. The other process – radiation-chemical degradation – has got some advantages. It does not involve high temperatures and expensive reagents. In this study, the effective OCP degradation was observed under irradiation of residuals of the active substance of ‘Hexachloran dust’ pesticide formulation, intended for utilization. Parameters for the preparation powder (dry form) exposure to electron beam are discussed. It is shown that at the exposure to electron beam at dose of 100 kGy, the degradation degree of hexachlorocyclohexane (HCH) isomers in a composition of active substance achieves 56.2–66.3%
Techniques for upgrading educational standards in tourism: how to integrate business circles into university research?
Methodology of developing modern educational standards has to comply with the new economic trends. Meeting the requirements of the market is conditioned by the integration of higher professional education and business all over the world. For the implementation of this integration strategy it is efficient to use the module education principle. This paper considers the main components of the module educational program: projective, innovative, and learner-centered. It has been shown that integration of business into research university programs can provide the necessary synthesis of theoretical and practical aspects of training professionals in tourism
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