The Use of Reftinskaya State District Power Plant Fly Ash in the Production of Building Materials and Products

The system of dry ash–slag removal at the Reftinskaya state district power plant which provides capture, storage and shipment of fly ash to the consumers is considered in this study. The results of determination of chemical and phase composition, physical properties, melting temperature and activity of natural radionuclides of ash which is form during burning of stone coal of Ekibastuz basin are presented. Ash is acidic, superfine and refractory one with a low content of combustible substance. As to composition and properties it satisfies the requirements of Russian Standard no. 25818 and ships to consumers under Technical Conditions 5717–004–79935691–2009. The results of laboratory tests and industrial production of building materials and products on the basis of ash of Reftinskaya state district power plant are presented. It is shown that ash is used in the production of Portland cement, heavy and cellular autoclave concrete, dry mixes and can also be used as part of fly ash non-fired and agloporite gravel, ceramic bricks. The features of their production, basic physical and mechanical properties of building materials and products are described. It is shown that the introduction of a new system of dry ash removal at the state district power plant contributes to the expansion of directions and increase in the volume of ash recycling. Keywords: Reftinskaya state district power plant, dry ash removal, fly ash, composition, properties, use, construction materials and product

Crop correlations with structure elements in varieties of grain sorghum of various ecological and geographical origin

In the conditions of the Donbass region, 38 varieties of grain sorghum of various ecological and geographical origin-breeding companies of Western Europe (“RAGT SEMENCES”, “EURALIS SEMENCES”, “PIONEER”), Ukraine, Russia, the international company “ADVANTA”, the American company “RICHARDSON SEED” were studied. Field research was carried out in the period from 2016 to 2018 in the experimental field of the Lugansk National Agrarian University on ordinary shallow weakly washed blackearth (chernozem) on loess-loam. It was found that the most adapted and productive (6,0 t/ha of grain or more) were early – maturing hybrids – Swift and Queyras; middle early – Solarius, PR88Y20, Bianca, Puma Star; mid-season - Bounty. The most productive (5,0 t/ha and more grain) varieties – Odessky 205, Krupinka 10, Darunok, Zersta 97. The average positive correlation between the duration of the growing season of varieties and crop yield was established. The density of the productive stem in the range from 11 to 25 panicles per 1 m2, the length of the panicle leg and the weight of 1000 grains did not have a significant correlation with the level of sorghum yield. Sorghum yield had an average and increased correlation with panicle weight, grain weight per panicle, number of grains per panicle, grain type, and medium negative relationship with plant height

Development of control systems and safety devices for solving the problems of digital transformation of the transport complex

The article considers the challenges facing the transport complex, in particular, at the stage of digital transformation. The directions of development of the transport complex are defined, including the creation of a highly effective "trusted environment". The reasons why the transition to a new paradigm of building transport control systems and safety devices of a new generation is extremely necessary are identified and analyzed. The basic principles and architecture of the basic platform for advanced control systems, safety and diagnostics of traction rolling stock are formulated and justified

Creation of database for strength calculation of constructions

The problems of creation of an automated system for obtaining, processing and storing experimental information on the physical and mechanical properties of structural materials, building materials and various soil media used to provide information support for automated computing systems for analysis of strength and design of structures are discussed. The developed database is focused on studying the effects of the behavior of structural materials under highly parametric influences of force, temperature and other physical fields, as well as on equipping and experimental substantiation of mathematical models describing these effects. In the proposed variant, the database is implemented as a client-server application executed on the Microsoft.Net Framework using a powerful database management system MS SQL Server. The content of the created bank is made up of sections of primary information, material properties and material models. In order to automate the processing of data at all stages of information conversion, a special “Desktop” subsystem is included in the bank, which allows aggregating data obtained from several different experiments, correcting the selected data, processing and converting it. Processing and transformation of data in the subsystem “Desktop” can be carried out either in manual mode or on the basis of special algorithms using appropriate mathematical methods

Creation of database for strength calculation of constructions

The problems of creation of an automated system for obtaining, processing and storing experimental information on the physical and mechanical properties of structural materials, building materials and various soil media used to provide information support for automated computing systems for analysis of strength and design of structures are discussed. The developed database is focused on studying the effects of the behavior of structural materials under highly parametric influences of force, temperature and other physical fields, as well as on equipping and experimental substantiation of mathematical models describing these effects. In the proposed variant, the database is implemented as a client-server application executed on the Microsoft.Net Framework using a powerful database management system MS SQL Server. The content of the created bank is made up of sections of primary information, material properties and material models. In order to automate the processing of data at all stages of information conversion, a special “Desktop” subsystem is included in the bank, which allows aggregating data obtained from several different experiments, correcting the selected data, processing and converting it. Processing and transformation of data in the subsystem “Desktop” can be carried out either in manual mode or on the basis of special algorithms using appropriate mathematical methods

Study of effectiveness of enrofloxacin and moxifloxacin in experimental salmonellosis of chickens

In this publication we present a comparative study of effectiveness of enrofloxacin and moxifloxacin for treatment of chickens, experimentally infected with Salmonella infantis. The chickens received both drugs in water-soluble form via drinking water ad libitum at concentrations of 200 mg/L, 100 mg/L, 50 mg/L and 25 mg/L one day before the challenge and then four consecutive days. The chickens were challenged by intraperitoneal injection with 150 million CFUs of one-day old agar culture of S. infantis in 0.5 mL isotonic saline. The observation period was 15 days. Enrofloxacin proved most effective (88% and 84%) at concentrations of 200 mg/L and 100 mg/L. Lower concentrations caused a decrease in its effectiveness. When enrofloxacin was administered at a concentration of 50 mg/L the survival rate for chickens was 64%. The effectiveness of moxifloxacin in our experiment was considerably lower. The survival rate for chickens, receiving moxifloxacin at concentrations 200 mg/L, 100 mg/L, 50 mg/L and 25 mg/L was respectively 32%, 28%, 32% and 16%, and their average lifespan was half as long as of those groups, receiving enrofloxacin. The results of our research prove the high effectiveness of enrofloxacin at a concentration 200 mg/L in drinking water for the treatment of experimental salmonellosis in chickens

Intravital and postmortem laboratory diagnostics of hydrophobia clinical cases

Rabies excitant is a neurophilic virus (Rabiesvirus), regarding to Mononegavirales order, Rhabdoviridae family, Lyssavirus genus. The situation with rabies morbidity in Russia is characterized as extremely unpleasant. Saliva, tear liquid, patient’s cornea prints were used in the work as well as, after their death, various segments of brain and salivary glands were used. Additionally, antibody concentration in blood serum of humans passing antirabies therapy after animal bites were investigated. Research Research of eye cornea prints from patient A, suffered from wolf bite, with antibody fluorescent method showed positive result 6 days before the death. The obtained results were confirmed postmortem while the investigation of brain various segments and salivary glands with the use of antibody fluorescent spectroscopy and enzyme-linked analysis method, ELISA, and in biosamples. Intravital research of various biosamples picked from the patient B, suffered from homeless dog bite, showed the precedence of Virus 9 days before the death. Rabies virus antigen was discovered on the basis of research results of eye cornea prints with confocal spectroscopy, saliva samples - with ELISA method, as well as rabies virus genome in saliva and tear liquid was demonstrated with Nested Enzyme-Linked Analysis with Reverse Transcription (Nested RT-PCR). Intravital diagnostics results of hydrophobia patient were confirmed afterwards postmortem while the investigation of brain various segments with confocal fluorescence spectroscopy, ELISA, method and biopsy. Hydrophobia of injured was going on in clinically well-expressed manner. The results of intravital and postmortem laboratory diagnostics of hydrophobia clinical cases in Russian Federation were considered. These cases were the result of wolf and homeless dog bites. Both hydrophobia cases, caused by wild predator and dog bite, were laboratory confirmed yet during patient’s life. Introduction of intravital laboratory rabies diagnostics into medical practice is an important element of differential diagnostics

International community in search of legal answers to the digitalisation challenges

The purpose of the study is to analyse the regulatory potential of international law taking into account its main focus for the regulation of new relations associated with digitalisation processes. The research methodology consisted of formal-legal, formal-logical, interpretation of law as well as general-scientific methods. The research resulted in the solution of problems involving the determination of the key areas of international cooperation in respect of those issues in which the need for international legal regulation has already most clearly manifested so far. The authors attributed to them the international cooperation under the auspices of international organisations, primarily the United Nations, monitoring compliance with international law and preventing its possible violations, solving global problems such as climate change, sustainable development, migration, terrorism and armed conflicts. The novelty of the research lies in the very formulation of the problem as well as the conclusion that international legal regulation in the field of digitalisation should be based on international consensus. At the same time, it is possible to reach such a consensus both within the framework of existing international organisations, which can be adapted to address new issues due to their universality, and through the development of new international agreements

Nanoscale Waveguide Beam Splitter in Quantum Technologies

Usually in quantum optics, the theory of large- and small-scale waveguide beam splitters is the same. In this paper, it is shown that the theory of the nanoscale waveguide beamsplitter has a significant difference from a similar device, but of a larger scale. It is shown that the previously known theory of the waveguide beam splitter is a particular case of the theory presented here. The wave function at the output ports of the nanoscale beam splitter is analyzed. The results obtained are sensitive to the size of the beam splitter, the coupling parameter of the two waveguides, and the degree of nonmonochromaticity of the photons entering the first and second ports of the beam splitter. The results are important for quantum technologies using a nanosized beam splitter