Tomsk Polytechnic University
Author list of organization
List of articles written by the authors of the organization
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01.00.00 Physical-mathematical sciences
DescriptionSpecially formed mixtures of isotopes of chemical elements have better consumer properties than their natural counterparts. Therefore, the development of methods for increasing the efficiency of the known methods for producing of isotope materials is relevant. It is known that the chemical bond is formed only in the singlet state of the spins of valence electrons of the reagents. On the basis of the known representations about dispersion of spin projections on the coordinate axes and the molecular-kinetic theory of gases was obtained an expression for the constant of the chemical reaction between the radicals occurring in the magnetic field. This expression allows calculating the reactivity of the isotopic modifications of radicals. Plasma allows to transfer many of the compounds in the gas phase. It is known that a significant part of particles in low temperature plasma is in a radical form. The equations of chemical kinetics for describing the process of oxidation of the carbon isotopes in argon-oxygen plasma occurring in an external permanent magnetic field were written in the work. It was shown that the efficiency of plasma process of isotopes separation can be increased only under insufficient oxygen relative to the stoichiometric value. These equations of chemical kinetics of processes occurring in the plasma process of incomplete oxidation of carbon isotopes needed to find experimental conditions that provide the maximum isotope effect in a magnetic field
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MAGNETIC PARTICLES` FORMATION IN CONDITIONS OF THE LOW-TEMPERATURE PLASMA AND MAGNETIC FIELD
01.00.00 Physical-mathematical sciences
DescriptionChemical processes are often connected with use or formation of condensed dispersed phase (CDP). Dispersed particles can change mobility of charges, as well as other parameters of the low-temperature plasma. The aim of this work is to study the effect of magnetic field on the processes of dispersed particles formation in argon-oxygen plasma containing iron and carbon atoms at atmospheric pressure. The equilibrium composition of iron and carbon atoms containing mixture simulated at temperatures of 1000-5000K for optimization of the plasma-forming gas composition. It is shown that in case of oxygen excess, the CDP particles contain only iron oxides. The literature data about the phase transition processes in a low-temperature plasma, as well as the data about the processes with participation of ferromagnetic particles in a constant magnetic field analyzed. The results of investigations of the dispersed particles forming in argon-oxygen plasma of arc discharge in the presence and in the absence of the magnetic field are shown. The formed disperse phase was deposited on the substrates and studied by the electron microscopy and X-ray methods. It was found that with the lack of oxygen the size of the iron-oxide particles created in the arc discharge containing iron and carbon is affected by magnetic field: in a magnetic field of 10 mT the particles are larger than in its absence
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10.00.00 Philological sciences
DescriptionThe article analyzes the particular characteristics of the logical and psychological sides of argumentation as a means of a persuasive effect in the speech of a public linguistic identity. The relevance of the research is defined by the importance of problems of studying the language of the given linguistic identities. The novelty is in the aspect of setting the problem of studying various types of public linguistic identities and in involving previously unresearched material. The object of study is a rhetorical speech portrait of a public language identity (prosecutor). The subject is particularities of logical and psychological lines of reasoning as ways of persuasive effect. The method used is scientific description with elements of speech portraying, observation. As a whole, the speech of the prosecutor corresponds to the rhetorical canons, having a standard logical composition: introduction, analysis and evaluation of the evidence gathered in the case, personality characteristics, conclusion. Various types of logical and rhetorical (psychological) lines of reasoning were distinguished in the course of the analysis. It is found that the text is rich in affective evaluation and metaphors. The general strategy is the prevalence of the psychological side of persuasive speech over the logical. The public language identity chosen strategy turned out to be successful, i.e. it made the speech expressive, original, assisting the formation of the judge's opinion in terms of conviction
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Description
The article is devoted to the study of factors of adaptation of Chinese students to educational environment of TPU. The goal of this work is to identify influence of different factors on adaptation of foreign students studying in Tomsk Polytechnic University. Various methods of data collection and analysis are used in the research –an associative experiment, open-ended questions and observation. As a result of the associative experiment main factors of adaptation of foreign students are revealed: interest in Tomsk, comfortable accommodation, professional tutors, relationship with peers and Russian language level. Weather and the need to adjust to new surroundings negatively influence adaptive capacity. Analysis of answers to the open-minded questions has confirmed the results of the associative experiment. Negative character traits are mentioned as factors that negatively influence adaptive capacity. The Russian language is regarded ambivalently by the Chinese students. It is perceived both as a negative and as a positive factor by the same respondents. Many students consider successful passing of Russian as a Foreign Language Test as personal success. Therefore, Russian is the most important factor of adaptation of the Chinese students in TPU
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PRECEDENT TEXTS AT LESSONS OF RUSSIAN AS A FOREIGN LANGUAGE
DescriptionThe relevance of the article is caused by the necessity to form the linguacultural competence of foreign students studying Russian language that corresponds to the Contemporary didactics of foreign language teaching. The case (precedent) texts are considered as one of the main means of linguacultural orientation used in practices of teaching Russian as a foreign language. The necessity to study the case (precedent) texts in this way is defined by its active use in language and by the presence of cultural component determining the valuable priorities of Russian vision of the world. Therefore, the assimilation of case (precedent) texts as actively used language elements of Russian culture is the most important principle of developing the communicative competence. The aim of this work is the attempt to describe the case (precedent) texts, acting as key material in the practice of teaching Russian as a foreign language. The article reveals the specificity of case (precedent) texts in the context of national culture, it also identifies and analyses their formal and semantic features, the peculiarities of perception of the case (precedent) texts by foreign students. The researching results of the peculiarities of the case texts that are used in the process of studying and teaching Russian as a foreign language, allow drawing the conclusion that the efficiency of assimilation of the considered units is caused by knowledge of their structure and semantics, by understanding the values, determined by them
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COMPARISON OF RADIATION SOURCES FOR PLANT GROWING BY LUMINOUS ENERGY UNIT'S COSTS AND ANALOGS
DescriptionThe article considers the method of comparison of radiation sources for plant growing by photosynthetic energy units or analogs costs, evaluation of critical values photosynthetic active radiation efficiency at which light-emitting diodes comparable by photosynthetic energy unit's costs with the most common alternative sources for irradiation of plants – high pressure sodium lamps
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01.00.00 Physical-mathematical sciences
DescriptionThe steady increase in demand for isotopes requires the development of methods to increase the efficiency of isotope separation technologies. Methods of isotope separation based on thermodynamic differences of isotopic forms of the molecules don't require significant investment, but characterized by a low rate of exchange. It's known that the magnetic effect leads to a change the vibrational frequency of the molecules, and therefore their thermodynamic parameters. The change increases the thermodynamic parameters, including the exchange rate. The results of the experimental determination of the thermal effect of dissolving the salts of NaCl, KCl, CuSO4, sodium amalgam decomposition by distillate in a magnetic field and without field were shown. Magnetic interference can have a significant effect on the amalgam exchange method which was shown by quantum and mechanical analysis of the results
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PHYSICAL BASIS OF ISOTOPE-ENRICHED LAYERS FORMATION IN FIBER OPTICS
01.00.00 Physical-mathematical sciences
DescriptionIt is known that transmission coefficient of quartz glass containing the same amount of 28Si and 30Si in the silicon optical fiber is lesser than in commercial LEDs for telecommunications. Therefore it is topical to develop the method of optical glass formation with specified isotope composition in the core and in the shell. The article provides an analysis of physical and chemical processes occurring at the formation of quartz optical fiber blanks by vapor deposition from the gas phase. It is shown that the part of the silicon tetrachloride oxidation stages passes through the radical processes. Therefore for quartz glass formation with specified isotope composition it is possible to use the paramagnetic phenomena caused by the external magnetic field in a high-temperature flow at the quartz glass chemical deposition from the vapor phase. In this case alloy additive using is not necessary. Alloy additives can form density inhomogeneities in the glass. Simultaneous silicon glass formation and silicon isotope separation process bring to significant reduction of the fiber cost in comparison with isotope-enriched materials using. The permanent magnets can be used for magnetic field formation at existing process units
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DEVELOPMENT OF THE NONCHEMICAL WATER PURIFICATION SYSTEM
DescriptionThe water treatment and water disposal generalized technological scheme implemented in a system of water extraction from the subterranean and surface water is represented. The basic units and work principle of a system are described. The main parameters of treatment are presented and a comparison of water treatment methods is done. It is shown that the presented system can be useful for wastes post-treatment
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LOCALIZATION FEATURES OF GEOCHEMICAL TYPES OF UNDERGROUND WATER OF OB-TOMSKOYE INTERFLUVIAL
DescriptionThe chemical composition of neogen-quaternary, paleogene, cretaceous and paleozoic aquifer systems in the Ob-Tomskoye interfluves area is presented in the article. The water saturation with respect to secondary minerals is described. Authors show that the waters of all studied aquifer systems are saturated with respect to montmorillonites and calcite in a less degree. The geochemical water types are identified and their distribution is described