Challenges and opportunities for energy recovery from municipal solid waste in the Russian Federation

Energy recovery from municipal solid waste (MSW) is currently a key factor in waste management in Russia, as can be seen from the corresponding changes in the state regulatory framework. The paper presents a comparative assessment of different waste flow characteristics; it focuses on pre-treatment options and the method of subsequent thermal treatment. It reflects the basic method of untreated MSW incineration and other advanced technologies which have different levels of waste preparation. Step-by-step research has been carried out in a large Russian city in order to determine different technological approaches to recovering energy from MSW. The study included: 1) field studies of the composition and characterization of MSW; 2) laboratory studies of MSW thermal properties, i.e. moisture, ash content and calorific value; 3) several options for waste treatment schemes with equipment of different technical specifications; 4) analysis of material flow, energy flow and key substance flow according to these considered schemes. The research revealed that for all seasons a significant proportion of MSW (almost 40%) is represented by fines (below 50 mm). On average, the energy potential of MSW (the total content of waste paper, polymers, textiles, wood, multilayer packaging, leather, rubber, footwear) amounts to about 40%. It was found that MSW calorific value depends on fraction size, since screening (over 50 mm) is characterized by high moisture and low content of valuable components, compared to MSW greater than 50 mm in size. Pre-processing and treatment of MSW allows solid recovered fuel (SRF) to be obtained with a calorific value similar to brown coal. The energy balance of the process allows the conclusion that 33.8% of initial MSW energy potential is concentrated in residues from the sorting process, since it has a relatively low calorific value of 4.8 MJ/kg, but a high mass fraction of 47.9%. In the process of MSW treatment and solid fuel production, most of the chlorine and mercury (80% and 55% respectively) is removed by the rest of the sorting process. The data obtained in the study can be used in selecting the optimal option for energy recovery from MSW. © 2019 WIT PressACKNOWLEDGEMENT The work was supported by Act 211 Government of the Russian Federation, contract № 02.A 03.21.0006

The requirements for qualification of teaching staff of the system of secondary professional education and the results of their training

Рассматриваются региональные особенности, актуальные требования, зафиксированные в профессиональном стандарте и ФГОС ВО, перспективы развития профессионально-педагогической деятельности в среднем профессиональном образованииThis article discusses the regional peculiarities, actual requirements set forth in the professional standard and GEF, prospects for the development of vocational pedagogical activity in secondary vocational educatio

Developed and developing countries: towards the common target with different speeds

Objective: to analyze the expected economic transformations in the 21st century in various countries of the world. Methods: abstract-logical method, methods of modeling of socio-economic self-organization, methods of long-term forecasting of world dynamics, theory of institutional matrices.Results: based on the performed analysis, the following conclusions are made: 1) in the coming decades, a complex continuum of types, transitions, combinations and forms of economic structures will be observed in the world (with an increase in the proportion of post-industrial forms). At the same time, there will be a shift towards strengthening distributive institutions in developed countries and a shift towards strengthening market institutions in developing countries that continue the processes of economic and socio-political modernization; 2) the process of internationalization of the labor force will be intensified (due to the development of remote employment) along with the internationalization of capital; 3) a new technological wave (2030s – 2070s) will bring new resources and expand the sphere for production and services, which will support economic growth in both developed and developing countries; 4) at the same time in some areas, in particular in medicine, a very significant regulation of economic activity is inevitable, while in other areas, in particular in robotics, economic mechanisms of a market-corporate type may strengthen; 5) thus, the most important task in the coming decades is to increase the flexibility of socio-economic development of all countries of the world, namely, gaining the ability to regulate the ratio of market and distribution mechanisms depending on the spheres of activity and tasks to be solved without the pressure of ideological dogmas.Scientific novelty: based on the historical trends analysis using the theory of institutional matrices, a forecast of economic transformations in the 21st century is made for the countries of various types and the expected features of these transformations are substantiated.Practical significance: the proposed methods of long-term forecasting can be used in strategic planning systems in the Russian Federation

Highly diastereoselective 1,3-dipolar cycloaddition of nonstabilized azomethine ylides to 3-nitro-2-trihalomethyl-2H-chromenes: Synthesis of 1-benzopyrano[3,4-c]pyrrolidines

Reactions of 3-nitro-2-trifluoro(trichloro)methyl-2H-chromenes, including 2-unsubstituted derivatives, with N-alkyl-α-amino acids (sarcosine, proline) and paraformaldehyde proceed diastereoselectively to give 1-benzopyrano[3,4-c]pyrrolidines in good yields as a result of a 1,3-dipolar cycloaddition of the intermediate nonstabilized azomethine ylide at the Δ3-bond of the chromene system. © 2013 Elsevier Ltd. All rights reserved

Methods of labor economy increasing in educational organization

The urgency of problem under investigation due to fact that increasing demand of the information technology infrastructure development in current conditions of educational institutions functioning, including formation of the information-educational environment point of view. Offered organizational and economic model of constructing processes for software development is based on agile project management, regarded as an object-oriented tool for optimizing labor economics. The purpose of article is in model for labor economy processes optimization as a part of software development based on agile project management methodology in departments associated with development of information technologies in educational organization. The leading method to the problem study is in measurement of labor economics key indicators, including specific metrics of technical expert’s human capital growth. As an experimental base of research are considered educational organizations, at different times, using classical approach for software development and agile project management. The article presents research results of educational organizations departments engaged in project activities for development of information technologies, which are in the development of software products using classical approach for software development and agile project management. Article submissions may be useful to create a culture for constructing labor economics and human capital system based on sustainable growth in departments of educational institutions working in the field of information technology. © 2016 Dorozhkin et al

Diversity-Oriented Synthesis of Novel Trihalomethyl-Containing Spirochromeno[3,4- a ](thia)pyrrolizidines and Spirochromeno-[3,4- a ]indolizidines by One-Pot, Three-Component [3+2]-Cyclo addition Reaction

Regio- and stereoselective methods for the synthesis of 6′-trifluoro(trichloro)methyl substituted spiro[acenaphthylene-1,11′-chromeno[3,4- a ](thia)pyrrolizidin]-2-ones and spiro[acenaphthylene-1,12′-chromeno[3,4- a ]indolizidin]-2-ones have been developed based on the three-component reaction of 3-nitro-2-trifluoro(trichloro)methyl-2 H -chromenes with azomethine ylides generated in situ from acenaphthenequinone and cyclic α-amino acids. The cycloaddition proceeds under mild conditions in ethanol or DMSO, and only endo -isomers of the products with cis -arrangement of nitro and trifluoromethyl groups are formed. The relative configuration of cycloadducts is reliably confirmed by X-ray diffraction analysis and by 2D NOESY spectroscopy. © 2021 Georg Thieme Verlag. All rights reserved.The work was financially supported by the Russian Foundation for Basic Research (grant 20-03-00716) and by the Ministry of Science and Higher Education of the Russian Federation (project FEUZ-2020-0052)

Properties of arsenic-implanted Hg1-xCdxTe MBE films

Defect structure of arsenic-implanted Hg1-xCdxTe films (x=0.23–0.30) grown with molecular-beam epitaxy on Si substrates was investigated with the use of optical methods and by studying the electrical properties of the films. The structural perfection of the films remained higher after implantation with more energetic arsenic ions (350 keV vs 190 keV). 100%-activation of implanted ions as a result of post-implantation annealing was achieved, as well as the effective removal of radiation-induced donor defects. In some samples, however, activation of acceptor-like defects not related to mercury vacancies as a result of annealing was observed, possibly related to the effect of the substrate

Second-order nonlinear optical properties of composite material of an azo-chromophore with a tricyanodiphenyl acceptor in a poly(styrene-co-methyl methacrylate) matrix

© 2017 Elsevier B.V.The composite material of new synthesized 4-((4-(N,N-n-dibutylamino) phenyl)diazenyl)-biphenyl-2,3,4-tricarbonitrile (GAS dye) in commercial poly(styrene-co-methyl methacrylate) (PSMMA) was prepared, poled and its nonlinear optical properties compared with DR1 dye were studied. High thermal stability of the composite material was revealed, and the maximal concentration of the chromophore was found to reach ∼20 wt%. The dipole moment, polarizability tensor, and first hyperpolarizability tensor of the investigated dyes were calculated by within the framework of the coupled perturbed density functional theory. A nanosecond second-harmonic generation Maker fringes technique was used which is capable of providing the magnitude of the second-order nonlinearity of optical materials at a wavelength of 1064 nm. For the tested GAS–PSMMA composite material, maximal coefficient d33 was found to be 50 pm/V. The nonlinear optical response, which was achieved here, shows possible usefulness of the GAS dye as a component for molecular design of nonlinear-optical materials with advanced characteristics

Accumulation and annealing of radiation donor defects in arsenic-implanted Hg0.7Cd0.3Te films

Processes of accumulation and annealing of radiation-induced donor defects in arsenic-implanted Hg0.7Cd0.3Te films were studied with the use of the Hall-effect measurements with processing the data with mobility spectrum analysis. A substantial difference in the effects of arsenic implantation and post-implantation activation annealing on the properties of implanted layers and photodiode ‘base’ layers in Hg0.7Cd0.3Te and Hg0.8Cd0.2Te films was established and tentatively explained