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BOBROVNIKOVA, K., and E. TOVSTUKHA. "METHODS FOR ENERGY EFFICIENCY AND ENERGY SAVING IN THE SMART HOME SYSTEM." Computer Systems and Information Technologies 1, no. 1 (September 2, 2020): 54–59. http://dx.doi.org/10.31891/csit-2020-1-7.
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Today, the efficient use of energy resources is one of the most important tasks. The fastest growing sector of energy consumption in the world is electricity, which is projected to grow by 56% by 2035, and in developed countries almost all the growth is due to the generation and consumption of electricity and heat. Further growth of energy consumption by the population is also expected. At the same time, almost a third of the total energy consumption is made up of certain losses, ie energy is consumed for other purposes. Against the background of global growth in energy consumption, the rate of further accumulation of CO2 emissions will increase. That is why the European Union, United Nations bodies, international financial organizations and the International Energy Agency give priority to energy efficiency issues. To this end, a set of mechanisms and practical tools for economic stimulation of measures to implement modern energy-saving technologies is used at the international level. Smart home is a system for managing the basic life support processes of both small systems (commercial, office premises, apartments, cottages) and large automated complexes (commercial and industrial complexes). One of the important tasks to be solved by the concept of a modern smart home is the problem of energy efficiency and energy saving. Effective control of heating, ventilation, air conditioning, more efficient use of traditional appliances and the introduction of energy-efficient equipment in the building are important to ensure productive, healthy and safe work and life of residents, play an important role in preventing energy loss and reduce impact on the environment. In addition, improving the efficiency of energy management is the only approach to ensuring the energy efficiency and energy saving of many existing buildings that cannot be upgraded according to the requirements of modern construction technologies. The paper presents an overview of modern methods and technologies aimed at ensuring energy efficiency and energy saving in the smart home system.
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Vlasenko, V., and V. Martynov. "PRINCIPLES OF FORMATION OF ENERGY EFFICIENT RESIDENTIAL BUILDINGS." East European Scientific Journal 2, no. 10(74) (November 22, 2021): 4–15. http://dx.doi.org/10.31618/essa.2782-1994.2021.2.74.136.
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The article analyzes the European and Ukrainian modern experience in designing energy efficient housing. The relevance and innovation of designing energy-efficient residential buildings and complexes, as well as its features are determined. The basic principles of designing energy efficient residential buildings are determined.
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Bondarenko, V. I., I. A. Kovalevska, and K. M. Prokopenko. "Modern methods of development of marine gas hydrate deposits." Technium: Romanian Journal of Applied Sciences and Technology 1 (December 21, 2019): 29–36. http://dx.doi.org/10.47577/technium.v1i.10.
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In recent years, there has been a trend around the world towards a constant increase in the consumption of fuel and energy resources, in connection with this there is a significant increase in interest in non-traditional methods of extraction of various energy sources. For many countries, this issue is especially relevant, since the price of natural gas supplied from abroad is growing every year, which negatively affects the economy. Therefore, the need to modernize the structure of the oil and gas complexes and to improve the mechanism for the development of the energy segment, which is possible through the introduction and application of the latest gas hydrate technologies, which will provide an opportunity to obtain additional energy, is obvious.
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Filimonova, A. A., A. A. Chichirov, N. D. Chichirova, A. G. Filimonov, and V. V. Kulichikhin. "Modern directions for the development of hydrogen energy technologies." Safety and Reliability of Power Industry 12, no. 2 (August 14, 2019): 89–96. http://dx.doi.org/10.24223/1999-5555-2019-12-2-89-96.
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Hydrogen energy combines a set of technologies for the production, transportation, storage and use of a versatile secondary energy carrier — hydrogen. The energy use of hydrogen is formed from the possibilities of environmentfriendly generation of electricity and long-term storage without loss, including on a large scale. Questions related to the consumption of hydrogen as a promising environment-friendly and versatile energy carrier and energy storage in various sectors of the national economy were formulated in the early 70s of the last century after the first oil fuel crisis. It has become obvious that it is necessary to develop new, ecologically optimal energy technologies based on the use of renewable energy sources, nuclear energy, coal and versatile environment-friendly energy carriers, making it possible to replace non-renewable energy resources as these are depleted and become more expensive. Hydrogen as a secondary energy carrier reveals its potential in a global strategy for sustainable energy development in the 21st century, which confronts the challenges of irreversible climate change, unsustainable oil production and increasing environmental pollution. Hydrogen can play a key role in mainline transportation by road and rail, in coastal and international shipping, in air transport, as well as in long-term and seasonal storage of electricity in networks, relying mainly on local renewable energy sources and local raw materials. The decisive element in the commercialization of hydrogen fuel technologies in Russia at the current stage is the formation of cost-effective hydrogen-transport-energy complexes, in particular, within power generating facilities.
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Dovgalyuk, O. М., R. V. Bondarenko, and I. S. Yakovenko. "DEVELOPMENT OF MEASURES TO IMPROVE THE OPERATIONAL EFFICIENCY OF AUTONOMOUS LIGHTING COMPLEXES FOR UKRAINIAN HIGHWAYS." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (1) (December 30, 2020): 38–45. http://dx.doi.org/10.20998/2224-0349.2020.01.06.
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Reducing highway hazards through the creation of modern lighting systems is an important practical task that currently has some difficulties. The rapid development of renewable energy makes it possible to use off-the-shelf solutions to create autonomous lighting complexes for unregulated pedestrian crossings. The analysis of peculiarities of design, constructive structure and operation of autonomous lighting complexes, which are located in Kharkiv region and use renewable energy sources and energy storage systems to power lighting devices and flashing signal lights, is carried out. The analysis results showed that the lighting complexes under investigation are not capable of supplying sufficient energy for themselves and of functioning properly at low insolation and low ambient temperatures. The reasons for the unstable operation of autonomous lighting complexes have been identified, with the main one being the insufficient accuracy of taking into account the actual climatic operating conditions of facilities when forming design solutions. Measures have been developed to improve the efficiency of the autonomous lighting complexes under study, involving the use of off-the-shelf technical solutions based on modern tools and technologies. A criterion for sufficiency of the developed measures to solve the problem of autonomous power supply of lighting complexes for highways is proposed. The sign of the resulting capacity of the complex over the calculation time period is taken as a sufficiency criterion. The practical use of the developed criterion confirmed the feasibility of the proposed measures to improve the operational efficiency of the investigated autonomous lighting complexes for highways. Calculations have shown that it is not sufficient to use solar panels alone to supply highway lighting complexes located in regions with unstable levels of insolation. The feasibility of hybrid power supply systems for autonomous lighting complexes that use additional power sources such as wind turbines and systems with electromechanical converters in addition to solar panels has been quantitatively confirmed.
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Belikov, O. V., and V. R. Kozak. "Power Supplies of Correction Magnets of Modern Accelerating Complexes." Physics of Particles and Nuclei Letters 17, no. 4 (July 2020): 507–10. http://dx.doi.org/10.1134/s1547477120040093.
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Bulavenko, Iryna. "Relationship of formation and functioning of natural territorial complexes." Visnyk of the Lviv University. Series Geography, no. 42 (October 15, 2013): 22–26. http://dx.doi.org/10.30970/vgg.2013.42.1759.
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The article is filed interpretation of the term “formation” and “functioning” natural territorial complexes and their relationship. Processes in NTC looks at how modern spatio-temporal flows of matter and energy, the interaction of physical, chemical and biological properties that underlie its self (self-forming). Therefore we think that the formation and functioning of NTC is a twin process. Key words: NTC, formation, functioning, indicator analysis.
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Alekseev, A. V., V. V. Kuznetsov, S. A. Sogonov, and A. A. Ravin. "Marine energy at the turn of digitalization and intellectualization of system management." Transactions of the Krylov State Research Centre S-I, no. 1 (December 8, 2021): 43–52. http://dx.doi.org/10.24937/2542-2324-2021-4-398-43-52.
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In the development of the results of the analysis of the directions of development of ship power engineering and automation, promising trends in the development of modern technologies of digitalization and intellectualization of marine equipment are considered. The special role and importance of the methodology and methods of system analysis and research design of complexes and digital technologies of intellectualization of management of complex electric power systems based on monitoring the state and dynamics of their functioning, proactive proactive management of diagnostics and localization of failures, emergencies and accidents is shown. Atypical ways of forced development of new technologies, training of specialists and ensuring competitive superiority of the created ship complexes and systems are given.
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Alekseev, A. V., V. V. Kuznetsov, S. A. Sogonov, A. A. Ravin, and O. V. Khrutsky. "Marine energy at the turn of digitalization and intellectualization of system management." Transactions of the Krylov State Research Centre S-I, no. 1 (December 8, 2021): 15–18. http://dx.doi.org/10.24937/2542-2324-2021-1-s-i-15-18.
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In the development of the results of the analysis of the directions of development of ship power engineering and automation, promising trends in the development of modern technologies of digitalization and intellectualization of marine equipment are considered. The special role and importance of the methodology and methods of system analysis and research design of complexes and digital technologies of intellectualization of management of complex electric power systems based on monitoring the state and dynamics of their functioning, proactive proactive management of diagnostics and localization of failures, emergencies and accidents is shown. Atypical ways of forced development of new technologies, training of specialists and ensuring competitive superiority of the created ship complexes and systems are given.
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Ukhanova, Viktoriya Yu. "Automated Control of the Microclimate in the Premises of Pig-Breeding Complexes." Elektrotekhnologii i elektrooborudovanie v APK, no. 3 (September 20, 2020): 103–8. http://dx.doi.org/10.22314/2658-4859-2020-67-3-103-108.
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In the pig breeding, a large share of the production cost is accounted for by the cost of electricity and heat. Reducing energy costs is one of the important tasks of the industry. It is important to identify and study modern technologies and equipment for pig farming due to the constant increase in electricity tariffs, significant energy costs for creating and maintaining a microclimate. (Research purpose) The research purpose is in an analysis of modern available technologies and equipment for agricultural production, including pig farming, allowing to reduce the cost of production. (Materials and methods) Authors used a method for determining the standard indicators of energy consumption of energy resources in the pig industry, based on the calculation and analytical method. The article presents an analyze of automated microclimate management systems in pig breeding complexes, taking into account the individual characteristics of farms produced by OWEN. (Results and discussion) Automated microclimate management systems can improve the productivity of pig farms; reduce the cost of electrical and thermal energy, reduce the number of diseases of animal from hypothermia, high humidity or temperature in the room, feed consumption; monitor the chemical composition of the air. The article considers three options for creating a microclimate in rooms with animals, taking into account the individual characteristics of enterprises. (Conclusions) The profitability of pig production depend on the level of technical equipment of farms, automation, and the use of energy-saving technologies and equipment. The use of innovations in agricultural production makes it possible to increase labor productivity up to three times, and savings due to reduced feed costs can reach several million rubles a year.
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Kirsanov, Mykhailo, Inna Slobodiannykova, and Olena Gupalo. "Improving the technology of using freon-steam turbines in mine power complexes." IOP Conference Series: Earth and Environmental Science 970, no. 1 (January 1, 2022): 012019. http://dx.doi.org/10.1088/1755-1315/970/1/012019.
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Abstract Mining power complexes can significantly reduce the cost of production of mining enterprises and increase their competitive position in the relevant market. To solve the urgent problem of further improving the operation of mine energy complexes, it is proposed to include in their composition installations for the useful use of energy from low-potential sources with a freon-steam turbine, which implement the thermodynamic Rankine cycle. The article considers the features of the organization of the Rankine cycle depending on the properties of freons. When choosing freons, the emphasis is placed on the use of strictly ozone-safe freons that meet modern requirements for normalizing the value of the global warming potential. The previously proposed method for calculating the thermodynamic parameters necessary for evaluating useful action’s coefficient of using specific freons in a useful energy recovery equipment has been improved. The calculation of the energy efficiency of the equipment with a freon-steam turbine for the selected options for the use of freons is performed. The analysis of the obtained results showed that the use of ozone-safe freons with low values of the global warming potential in installations for the utilization of energy from low-potential sources will improve the operation of mine energy complexes.
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Gvozdev, Daniil A., Evgeniy G. Maksimov, Marina G. Strakhovskaya, Vladimir Z. Paschenko, and Andrey B. Rubin. "Hybrid Complexes of Photosensitizers with Luminescent Nanoparticles: Design of the Structure." Acta Naturae 13, no. 3 (November 15, 2021): 24–37. http://dx.doi.org/10.32607/actanaturae.11379.
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Increasing the efficiency of the photodynamic action of the dyes used in photodynamic therapy is crucial in the field of modern biomedicine. There are two main approaches used to increase the efficiency of photosensitizers. The first one is targeted delivery to the object of photodynamic action, while the second one is increasing the absorption capacity of the molecule. Both approaches can be implemented by producing dyenanoparticle conjugates. In this review, we focus on the features of the latter approach, when nanoparticles act as a light-harvesting agent and nonradiatively transfer the electronic excitation energy to a photosensitizer molecule. We will consider the hybrid photosensitizerquantum dot complexes with energy transfer occurring according to the inductive-resonance mechanism as an example. The principle consisting in optimizing the design of hybrid complexes is proposed after an analysis of the published data; the parameters affecting the efficiency of energy transfer and the generation of reactive oxygen species in such systems are described.
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Umarjon o’g’li, Hamidov Oybek. "Processes of Modern Design of Shopping and Entertainment Complexes in the Regions of the Republic of Uzbekistan." International Journal for Research in Applied Science and Engineering Technology 9, no. 11 (November 30, 2021): 279–80. http://dx.doi.org/10.22214/ijraset.2021.38793.
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Abstract: Currently, the creation of service centers for the population - modern shopping markets (supermarkets, hypermarkets) in order to improve the life of the population serves to improve the architectural and urban planning environment, the development of aesthetics, beauty of the city. Keywords: Modern - Zamonaviy, Trade - Savdo, Entertainment - Kungil Ochar, Service - Izmat Kursatish, Complex - Mazhmua, Architectural - Memorchilik.
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Re, Suyong, Hiraku Oshima, Kento Kasahara, Motoshi Kamiya, and Yuji Sugita. "Encounter complexes and hidden poses of kinase-inhibitor binding on the free-energy landscape." Proceedings of the National Academy of Sciences 116, no. 37 (August 26, 2019): 18404–9. http://dx.doi.org/10.1073/pnas.1904707116.
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Modern drug discovery increasingly focuses on the drug-target binding kinetics which depend on drug (un)binding pathways. The conventional molecular dynamics simulation can observe only a few binding events even using the fastest supercomputer. Here, we develop 2D gREST/REUS simulation with enhanced flexibility of the ligand and the protein binding site. Simulation (43 μs in total) applied to an inhibitor binding to c-Src kinase covers 100 binding and unbinding events. On the statistically converged free-energy landscapes, we succeed in predicting the X-ray binding structure, including water positions. Furthermore, we characterize hidden semibound poses and transient encounter complexes on the free-energy landscapes. Regulatory residues distant from the catalytic core are responsible for the initial inhibitor uptake and regulation of subsequent bindings, which was unresolved by experiments. Stabilizing/blocking of either the semibound poses or the encounter complexes can be an effective strategy to optimize drug-target residence time.
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Averyanova, Olesya, Aleksandra Amelina, Pavel Amelin, Aleksandra Makeeva, Sergej Manovitskij, and Ernest Ivanov. "Balancing fittings in a water heating system." E3S Web of Conferences 140 (2019): 04006. http://dx.doi.org/10.1051/e3sconf/201914004006.
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Energy conservation and improving energy efficiency are priority areas for the development of the global economy. The need to increase the energy efficiency of the engineering equipment of buildings is due to both the requirements to reduce the energy consumption of buildings in general, and the increase in the proportion of energy-consuming climate systems used in modern construction. In large modern office, hotel and residential complexes to achieve the greatest energy efficiency it is necessary to use various technical solutions. The main element of an energy-efficient heating system is regulation. Balancing devices allow to not only balance and tune the system at any time of operational period but also serve as stop valves during reparation and diagnostics. Determination of energy savings bases on the average value heat consumption before and after modernization, depending on the type of installed valves or their combination. The focus of the work is hydraulic calculation of the heating system the authors conduct research on the effect of differently balancing fittings on the hydraulics of the heating system.
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DEMIANCHUK, O., and A. BABARYKINA. "ENERGY EFFICIENT SOLUTIONS IN INFRASTRUCTURE PROJECTS OF SORTING COMPLEXES OF RAILWAY STATIONS." Transport systems and transportation technologies, no. 22 (December 28, 2021): 13. http://dx.doi.org/10.15802/tstt2021/247878.
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Purpose. Improving approaches and methods of calculation and design of energy-efficient sorting slides of railway stations, taking into account the mechanization of their braking positions based on the use of modern car moderators, including energy efficient structures. Methodology. The research was performed using the methods of the theory of bitter calculations in combination with the tools of mathematical statistics and probability theory. The assessment of the possible economic effect was carried out taking into account the technical and economic calculations on the criterion of the given savings of annual costs. Results. An estimate of the predicted value of the speed of the very good runner at the entrance to the brake positions when calculating their needs. An adaptive approach to the calculation of the required power of the 1st and 2nd brake positions on the descent part of the sorting slides is proposed. The condition of technological reliability and "survivability" of the system of control of speeds of movement of couplings at rolling down from a sorting hill is checked taking into account action of probabilistic factors. The economic effect of reducing the need for car decelerators for the braking positions of the slides, as well as energy efficiency of sorting complexes. Practical value. The obtained important scientific and practical results to substantiate the reduction of energy consumption and increase the energy efficiency of sorting stations can be used to develop new projects and to survey the parameters of existing sorting complexes, including non-mechanized slides.
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Reznichenko, V. P., H. A. Kulyk, and M. M. Kovalov. "Substantiation of closed resource-saving manufacturing of environmentally sound agricultural products at modern energy independent agro ecological complexes." Taurian Scientific Herald 109, no. 1 (2019): 109–14. http://dx.doi.org/10.32851/2226-0099.2019.109-1.17.
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SEMBIN, Mukhtar S., Sh Zh SURANKULOV, and Elena A. AKHMEDOVA. "THE EXPIRIENCE OF RESEACH OF URBAN RESERVES FOR THE DEVELOPMENT OF URBAN AGRICULTURE IN MODERN MEGASITIES." Urban construction and architecture 9, no. 3 (September 15, 2019): 151–58. http://dx.doi.org/10.17673/vestnik.2019.03.19.
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The article is devoted to solving problems associated with the use of town-planning reserves in the largest cities for urban food production technologies. One of the forms of urban reserves is the use of roofi ng resources. In roof construction, modular, quickly erected structures can be used. Such greenhouse energy-effi cient construction projects can be located on the roofs of buildings of various functional purposes - shopping centers, shops, garages and other public and communal facilities. In the structure of the largest city, such greenhouse complexes can be located both in peripheral areas and in the middle zone. In some cases, greenhouse complexes on hydroponics can be elements of more complex cluster formations such as research bio-eco-agro centers, agricultural parks, and other innovative urban complexes. Such objects function not only as agricultural production, but also as integrated scientifi c and experimental, educational, leisure and educational complexes. The article describes in more detail the experience of placing urban farms and greenhouses in the USA, using the examples of the largest megacities. At the same time, such city farms are becoming places of labor for some sections of the townspeople, solving an important social problem. The article raises the problems of the formation of modern innovative agriculture in cities, thanks to which residents of megacities can be employed and constantly provided with fresh food. In the conditions of the modern world, this is becoming more and more relevant, since a healthy lifestyle and nutrition is gaining popularity, including in the southern regions of Northern Kazakhstan, Russia
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Di Cicco, Andrea. "Local structure in molecular complexes probed by multiple-scattering XAS." Journal of Synchrotron Radiation 10, no. 1 (December 24, 2002): 46–50. http://dx.doi.org/10.1107/s0909049502017193.
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The GNXAS (n-body distribution function X-ray absorption spectroscopy) method for multiple-scattering (MS) data analysis of EXAFS (extended X-ray absorption fine structure) data and the results recently obtained on molecular complexes relevant to biological matter are briefly reviewed and discussed. Practical MS calculations for important molecular fragments like Fe—O—O and Fe—C—N—Cu are presented in detail showing the potential of the techniques for measuring bond-angle distributions. The optimal conditions for obtaining accurate structural refinements using EXAFS measurements and modern data-analysis schemes are discussed as well as the current perspectives in the exploitation of the technique.
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Ito, Shunichiro, Kazuo Tanaka, and Yoshiki Chujo. "Characterization and Photophysical Properties of a Luminescent Aluminum Hydride Complex Supported by a β-Diketiminate Ligand." Inorganics 7, no. 8 (August 17, 2019): 100. http://dx.doi.org/10.3390/inorganics7080100.
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Aluminum hydrides are versatile compounds utilized as reducing agents, precursors of aluminum complexes, and as catalysts for polymerization reactions. However, their photophysical properties have been overlooked, although several luminescent aluminum complexes have been utilized conventionally for emitting layers in modern light-emitting devices. Herein, we report the synthesis and photophysical properties of a luminescent β-diketiminate dihydride complex through the reaction between lithium aluminum hydride and the corresponding ligand. The obtained compound exhibits crystallization-induced emission (CIE) properties at room temperature and long-lifetime phosphorescence at 80 K. Our experimental and theoretical investigations suggest that low-energy molecular vibration could play an important role in the realization of the CIE property.
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Belіkov, V., O. Hryhoriev, S. Kovalishyn, and I. Symonenkova. "MODERN SYSTEM OF THE POWER SUPPLY OF THE MODULE TRANSPORT PLATFORMS OF GROUND ROBOTIC COMPLEXES FOR COVERT COMBAT ACTIONS." Collection of scientific works of Odesa Military Academy 2, no. 12 (December 27, 2019): 33–38. http://dx.doi.org/10.37129/2313-7509.2019.12.2.33-38.
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The choice of energy sources to ensure the smooth functioning of the entire set of actuators of an autonomous transport platform of ground military robot, including traction propulsion, has a decisive impact on the overall performance and viability of the entire GRC (ground robotic complex) and determines, ultimately, its quality and reliability in the process. For covert warfare, recommending the use of energy sources such as internal combustion engines is impractical because of the high levels of inherent acoustic noise. With the advent of electrochemical energy sources, significant progress has been made in the development of a number of high technologies, namely, in the newest fields of technology - portable electronics and power electromechanics. Power sources such as lithium-ion batteries have proven to be much lighter and more compact than other types of batteries. Therefore, electrochemical lithium-ion batteries have been widely used in military robotics, ranging from small UAVs and multicopters to portable ground combat robots and marine robotic vehicles. Recent achievements in enhancing the specific performance of batteries of this type make it possible to use them in the electromechanical motors of modular transport platforms of modern ground robots for covert combat operations with a carrying capacity of up to 500 kg and above. The analytical purpose of the materials in this article is to compare the potential sources of electricity in terms of their practical use in military robotics, namely, in the transport platforms of modern GRC for covert warfare. Frame-modular platforms with a capacity of 50, 150 and 500 kg were adopted for the real objects with installed sources of electricity. The principal feature of these platforms is the presence of rigid tubular modular horizontal frame made of precision steel or composite tubes. In the internal cavities of these pipes it is proposed to install power sources made in the form of cylindrical functional blocks-modules.
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Tokarchuk, D. M., N. V. Pryshliak, O. A. Tokarchuk, and K. V. Mazur. "TECHNICAL AND ECONOMIC ASPECTS OF BIOGAS PRODUCTION AT A SMALL AGRICULTURAL ENTERPRISE WITH MODELING OF THE OPTIMAL DISTRIBUTION OF ENERGY RESOURCES FOR PROFITS MAXIMIZATION." INMATEH Vol.61 61, no. 2 (August 31, 2020): 339–49. http://dx.doi.org/10.35633/inmateh-61-36.
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The use of biogas is one of the ways to supplement and partially replace traditional fuels in rural areas. The feasibility of farms’ energy supply from their own energy source and the need to reduce harmful emissions into the environment make the biogas plant an indispensable element of modern livestock complexes. The article considers the possibility of using biogas for energy supply of an agricultural enterprise. The schemes and design capabilities of biogas plant for small and medium size farms are considered. The list and volume of products that can be obtained from the operation of the biogas plant have been determined. Economic indicators of the use of animal manure for biogas production have been determined. A comparison of the cost-effectiveness of using biogas energy products has been conducted.
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Danishevskiy, O. V., A. V. Parfenov, and V. V. Stankevich. "MODERN SOLUTIONS IN THE FIELD OF ROBOTIC VISION TO CREATE A UNIVERSAL CYBERNETIC PLATFORM." Issues of radio electronics, no. 5 (June 8, 2019): 32–38. http://dx.doi.org/10.21778/2218-5453-2019-5-32-38.
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The article describes modern solutions used to create vision systems for autonomous robotic complexes, a device for controlling video sensors, methods for obtaining stereo images, processing and further using them in the navigation system. A functional diagram of the organization of the robotic vision system, which is part of the NIIVK M. A. Kartsev Computing System Research and Development Institute, platform, a brief description of its functions and principles of action. The proposed solution involves placing a pair of optical sensors in the head of the robot, simulating the binocular stereoscopic vision inherent in higher animals. A feature of the development is the rejection of the use of laser, infrared, radio frequency, ultrasound and other active emitters, which reduces energy costs and the cost of products without reducing their reliability.
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Abdibattayeva, Мaral, Kylyshbay Bissenov, Zheniskul Zhubandykova, Raigul Orynbassar, Lyazzat Tastanova, and Bayan Almatova. "Purification of Oil-Containing Waste Using Solar Energy." Environmental and Climate Technologies 25, no. 1 (January 1, 2021): 161–75. http://dx.doi.org/10.2478/rtuect-2021-0011.
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Abstract Significant oil losses in oil-containing wastes and their adverse impact on the region environmental setting bring about the need to develop an oil-containing wastes treatment technology. To tackle this issue, the authors have set an aim of designing a helio device and creating an oil-containing wastes treatment method based on it to extract oil products. Considering a widespread in the composition and properties of potential oil sludge raw materials and their tendency for either formation of stable emulsions or phase separation, we have conducted in-depth modern physical and chemical studies and defined the need to develop a commercial oil-containing wastes purification method. We have designed the device, in which oil product hydrocarbons undergo thermal treatment using solar energy. Following oil-containing wastes purification using solar energy, the particulate load in soil does not exceed 6.65–6.79 % and the absolute molecular weight of hydrocarbons approaches that of bitumen. The developed oil-containing wastes purification method solves an important environmental issue of oil-containing wastes recycling, promotes recovery, and prevents degradation of natural complexes, and reduces soil and water pollution.
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Shuvalov, V. "TRENDS IN THE DEVELOPMENT OF MODERN ARCHITECTURE OF RECREATIONAL FACILITIES IN BANGLADESH." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 5, no. 11 (December 4, 2020): 66–74. http://dx.doi.org/10.34031/2071-7318-2020-5-11-66-74.
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The article discusses new directions in the development of the architecture of recreational facilities in South-east Asia, which need to be implemented to form a modern recreational and tourist cluster in Bangladesh. The author reveals compositional, spatial-planning, decorative-stylistic, functional and design features in the architecture of recreational objects made of bamboo. It is proposed to build the main accommodation facilities (hotels, hotels, motels, arrival houses and houses with the status of "second homes") and food facilities (cafes, bars, canteens, restaurants) using traditional ecological materials. Modern methods of energy saving, their implementation in the practice of design and construction in countries with hot and humid climates are listed. When designing recreational and tourist complexes, innovative technologies, materials and structures are introduced that increase the comfort of recreational facilities. The government relies on the development of the recreational tourism industry in the country, creating economic advantages in the development of this business in the Republic of Bangladesh, increasing the investment attractiveness for domestic and foreign investors, offering preferential tax and customs regimes for the construction and operation of recreational and tourist facilities. Many facilities of the recreational and tourist industry, built in the period 1980-2010 do not meet modern requirements for energy efficiency, environmental friendliness and aesthetic appeal, which definitely has a negative impact on the recreational attractiveness of some regions of the country, this is especially important for remote and difficult to access areas where created objects.
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Sinchuk, Ihor O., Albert B. Somochkyn, Kyrylo V. Budnikov, Svitlana V. Somochkyna, Vladyslav D. Baranovskyi, and Oleksandr V. Danilin. "Modelingtoolsforimprovingenergyefficiencyofwaterdrainagecomplexesatironoreunderground mines." Herald of Advanced Information Technology 5, no. 1 (April 18, 2022): 40–51. http://dx.doi.org/10.15276/hait.04.2022.4.
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The natural presence of water in underground mining processes creates significant difficulties and requires constant water drainage, i.e. pumping water to the day surface into special reservoirs. The so-called main drainage complexesare used for perform-ing these operations. Mine water drainage is an energy-consuming process. Therefore, the need to reduce energy intensity of water drainage complexes is a relevant task, which is so far unsolved to a level that is fully adequate. To solve the above-mentioned prob-lem on a systemic basis, it is of primary importance to assesstools of improving energy efficiency of water drainage complexes ac-cording to their efficiency levels. It is vital for further formatting the scientific search for options that possess sufficient efficiency. For such technology-intensive types of consumers as underground mines, modeling of power consumption is an effective and afford-able method of obtaining preventive results, which are close to real-life conditions. Of course, the level of adequacy of the modeling results obtained depends on compliance of input parameters of a model with real values. Such a model of the electric power system as a complex of groundwater drainage to the day surface can be used as a supporting option for modeling in order to get the required results for both developing energy-efficient control measures for drive electromechanical complexes and designing an effective struc-ture of the entire drainage complex. It is in this perspective that the research methodology is built, the results of which are outlined in the article.Modeling the levels of efficiency in the use of some modern trends in improving the operation of drainage complexes of iron ore underground production made it possible to rank them according to the levels of implementation, starting with the use of controlled electric drives and ending with the optimization of their operating modes.
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Khvoshchan, O. V., and O. P. Smirnov. "DEPENDENCE OF ENERGY PROCESSES OF HIGH-VOLTAGE ELECTRIC-DISCHARGE BOREHOLE COMPLEXES "SKIF" ON CHARACTERISTICS OF LOADING." Tekhnichna Elektrodynamika 2022, no. 1 (January 24, 2022): 58–66. http://dx.doi.org/10.15407/techned2022.01.058.
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The work determines the dependences of electrical parameters of the ground and submerged parts of the charging unit of the electric-discharge borehole complex "Skif-100M" on peculiarities of changing of electrical characteristics of the active and reactive load contributed by modern geophysical cables up to 10 km long with an active resistance from 24 to 644 Ohm, capacitance from 0.2 to 1.8 μF and inductance from 2.9 to 31 mH. New dependences and conditions to increase the charging power of storage capacitor, the output power of the complex and the voltage of ground part of its power supply from load parameters were determined on the basis of analysis of transients in the charging circuit of a complex. There were realized necessary energy characteristics for creation of a universal submersible charging unit to increase energy efficiency and productivity of high-voltage borehole electric-discharge complexes of "Skif" type. The obtained results provide effective modernization of the domestic submersible electric-discharge equipment of such complexes (in particular, their ground power sources and submersible charging units). This extends the scope of their application in the oil and gas industry of Ukraine and increases the attractiveness of investment of foreign companies engaged in the processing of oil wells in different countries of the world to the Ukrainian economy. References 11, figures 4, tables 3.
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Borozdin, M. K., S. S. Nepochatov, and N. O. Primachenko. "IMPROVEMENT OF DRILLING RIG ELECTRICAL EQUIPMENT." Системи управління, навігації та зв’язку. Збірник наукових праць 1, no. 59 (February 26, 2020): 12–14. http://dx.doi.org/10.26906/sunz.2020.1.012.
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The article describes the electrical complex of a modern electric drilling rig. The structure of electrical complexes is caused by a wide range of requirements for the drilling depth, purpose and operating conditions of the drilling rig. The issue of the direct use of the engine, namely, the conversion of various types of energy into mechanical energy, is also considered. Today, in leading industries, the ratio of the installed capacity of electric drives to the total installed capacity of drives with engines of all types (Thermal, hydraulic, pneumatic) is approaching 100%. This is determined by the fact that electric motors are manufactured for various capacities (from hundredths of a watt to tens of thousands of kilowatts) and rotational speeds
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Paten, Tom. "The prospectivity of the Late Triassic intervals in the outboard Exmouth Plateau, Western Australia." APPEA Journal 60, no. 2 (2020): 742. http://dx.doi.org/10.1071/aj19173.
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The Exmouth Plateau is a deep-water plateau on the Australian continental margin underlain by 10–15 km of flat-lying, tilted and block-faulted Paleozoic–Mesozoic sedimentary rocks, which were deposited predominantly during periods of extension before continental break-up commenced in the middle Jurassic. The recent acquisition of the Mawson MC3D broadband seismic survey provides a modern, high-quality dataset located ~230 km to the north-west of Dampier, in the outboard Exmouth Plateau, in a relatively under-explored portion of the Northern Carnarvon Basin. The Late Triassic Mungaroo Formation is the primary reservoir target for the majority of the exploration in the Exmouth Plateau to date. A detailed investigation into the reservoir potential and prospectivity of the Mungaroo Formation is possible by utilising this modern dataset. The high-quality data presents a high-resolution view of the Rhaetian carbonate reef platforms and pinnacle reef complexes that are present within the Mawson survey footprint, revealing an under-explored play type within the region. The development of a detailed stratigraphic framework through the Late Triassic–Jurassic, combined with the use of attribute analyses and amplitude versus offset products can help de-risk identified prospects and highlight further prospectivity during the exploration process.
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Golyshev, V. M., D. V. Pyshnyi, and A. A. Lomzov. "Calculation of Energy for RNA/RNA and DNA/RNA Duplex Formation by Molecular Dynamics Simulation." Molecular Biology 55, no. 6 (November 2021): 927–40. http://dx.doi.org/10.1134/s002689332105006x.
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Abstract The development of approaches for predictive calculation of hybridization properties of various nucleic acid (NA) derivatives is the basis for the rational design of the NA-based constructs. Modern advances in computer modeling methods provide the feasibility of these calculations. We have analyzed the possibility of calculating the energy of DNA/RNA and RNA/RNA duplex formation using representative sets of complexes (65 and 75 complexes, respectively). We used the classical molecular dynamics (MD) method, the MMPBSA or MMGBSA approaches to calculate the enthalpy (ΔH°) component, and the quasi-harmonic approximation (Q-Harm) or the normal mode analysis (NMA) methods to calculate the entropy (ΔS°) contribution to the Gibbs energy ($$\Delta G_{{37}}^{^\circ }$$ ) of the NA complex formation. We have found that the MMGBSA method in the analysis of the MD trajectory of only the NA duplex and the empirical linear approximation allow calculation of the enthalpy of formation of the DNA, RNA, and hybrid duplexes of various lengths and GC content with an accuracy of 8.6%. Within each type of complex, the combination of rather efficient MMGBSA and Q-Harm approaches being applied to the trajectory of only the bimolecular complex makes it possible to calculate the $$\Delta G_{{37}}^{^\circ }$$ of the duplex formation with an error value of 10%. The high accuracy of predictive calculation for different types of natural complexes (DNA/RNA, DNA/RNA, and RNA/RNA) indicates the possibility of extending the considered approach to analogs and derivatives of nucleic acids, which gives a fundamental opportunity in the future to perform rational design of new types of NA-targeted sequence-specific compounds.
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Tryuhan, M., and M. Barabash. "MODERN TRENDS OF FUNCTIONAL-PLANNING FORMATION OF ICE FACILITIES." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 6, no. 11 (August 18, 2021): 97–105. http://dx.doi.org/10.34031/2071-7318-2021-6-11-97-105.
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The article is devoted to the development of ice sports facilities. The current trends in the development of the architecture of ice arenas and sports facilities in the world are described. The functions of modern ice sports facilities and their transformation from the beginning of the appearance of the first indoor ice arenas are considered. Changes in the typology of ice arenas are considered in connection with the modern conditions of urban life and with the development of construction and engineering technologies. The conditions for the architectural formation of sports facilities with artificial ice are presented. The analysis of domestic and foreign experience in the design of modern sports ice facilities reveals the features of the space-planning structure of urban planning conditions. The prospects for the development of ice sports facilities from the point of view of the multifunctionality and universality of buildings are described. Possible measures aimed at improving the energy efficiency of sports ice arenas and complexes are presented. The article touches upon the issue of ensuring the safety of people in the conditions of their mass congestion at sports events through the architectural and spatial organization of the building and the adjacent territory. Multifunctionality, all-season nature, as well as the growing trend of filling sports ice facilities with public entertainment functions will attract a large number of people to visit ice arenas, as well as raise the level of public interest in sports
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Fedosimova, A. I., I. A. Lebedev, A. G. Mayorov, E. A. Dmitriyeva, E. A. Bondar, P. M. Krassovitskiy, Kh K. Olimov, I. I. Absalyamova, and D. O. Murzalinov. "Application of ASAS method to PAMELA calorimeter." Journal of Physics: Conference Series 2155, no. 1 (January 1, 2022): 012001. http://dx.doi.org/10.1088/1742-6596/2155/1/012001.
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Abstract In this paper, we propose a method that makes it possible to to improve energy reconstruction for data obtained via thin heterogeneous calorimeters for direct measurements of cosmic rays with energies of TeV and higher. Despite the large number of modern experimental complexes, the primary energy of cosmic nuclei with energies above 1 TeV is determined with large errors associated with fluctuations in the development of the cascade. For heterogeneous calorimeters, transient effects give an additional negative effect. In this paper we analyze the main causes of fluctuations and discuss a method for reducing the effect of fluctuations on the results of primary energy reconstruction. The method of accumulation of signal along the spectrum (ASAS) is used to reduce fluctuations associated with transient effects. The method was tested using the heterogeneous calorimeter of the PAMELA collaboration. It is shown that the proposed approach makes it possible to correctly determine the energy of slowly developing showers, the maxima of which are not measured.
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Honcharuk, A., V. Oleniev, V. Shlapak, V. Didyk, and N. Oleniev. "THE DETERMINATION OF THE PROSPECTIVE COMPOSITION OF THE POWER SUPPLY SYSTEM AS A PART OF COMBAT EQUIPMENT COMPLEXES OF SERVICEMENOF MILITARY RECONNAISSAHCE UNITS OF THE ARMED FORCES OF UKRAINE." Collection of scientific works of Odesa Military Academy 2, no. 12 (December 27, 2019): 46–54. http://dx.doi.org/10.37129/2313-7509.2019.12.2.46-54.
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In a certain perspective, the development of military equipment of military personnel should be aimed at equipping the military units with modern models of small arms that meet the world standards in terms of aiming, range and accuracy of shooting, armor-piercing, ammunition, energy supply, weight indicators etc. The priorities of logistical support are determined by: equipping the personnel with modern combat equipment complexes, which will consist of field uniforms at the level of the best world samples and personal protective equipment, night vision devices, navigation and communication equipment (with the necessary level of energy supply, energy security, security); search for new materials and technologies for the protection of manpower, terrestrial and aerial vehicles (composite nanostructured masking coatings with high thermal conductivity to reduce the likelihood of detection in the infrared spectrum by means of observation, detection, recognition) etc. The Individual Equipment Set of Personnel (IESP) remains one of the most important components that contributes to improving combat effectiveness and reducing personnel losses when performing combat missions. At the present stage of IESP development, priority is given to the creation of advanced systems of defeat, control and communication, protection, life support and energy supply, as well as increased soldier maneuverability in combat at the turn of 2020. A generalized analysis of the main tasks of creating a combat equipment complex (CEC) for the serviceman of the Armed Forces of Ukraine makes it possible to state that the fulfillment of all the intended goals and tasks should be ensured and accompanied by a highly effective system of scientific research and scientific support of the state programs of development of all systems and elements of the CEC. The power supply system and its components (chargers, power supplies, power converters and transmitters, means of controlling the system components) are one of the most important components of equipment. The most important stage of substantiation of the perspective composition of the energy supply system (chargers, power sources, means of transformation and transmission of electricity, means of controlling the performance of system components) in the complexes of combat equipment of military intelligence units is a complex assessment of the contribution to the effectiveness of combat based on mathematical modeling of fighting. According to the basic principles of the system approach, when developing requirements for individual subsystems, it is necessary to proceed from the basic purpose of the whole system as a whole, expressed in terms of its efficiency. This approach to the study of the energy supply system (chargers, power supplies, means of transformation and transmission of power, means of monitoring the performance of system components) in the complexes of military equipment of military intelligence units of the Armed Forces of Ukraine allows to choose rational option from the many options and direct the priority direction of upgrading of power supply system (chargers, power supplies, means of conversion and transmission of electricity, means of controlling work system components) in the complexes of military equipment of military personnel.
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Kaishev, V. G. "Food fortification – a modern principle of the food industry." Agrarian-And-Food Innovations 12 (December 25, 2020): 70–76. http://dx.doi.org/10.31208/2618-7353-2020-12-70-76.
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Aim. To analyze the scientific and technical literature and identify ways to create a new generation of mass-consumption food products enriched with vital nutrients. Discussion. The main malnutrition of the Russian population is the excess of caloric intake over an indicator of the level of energy consumption. One of the ways to solve this problem is the production of functional food products or enriched functional products. The essence of this is that only those micronutrients that are really in short supply should be used in the fortification of products. These should be products of mass consumption, and especially those that undergo refining, which results in the loss of micronutrients. The use of raw materials and ingredients only of natural (animal, vegetable, mineral) origin, allows you to create active complexes that qualitatively change the physiological properties of the product, and can affect many product characteristics and processes such as physico-chemical, structural-mechanical and organoleptic characteristics of the product, the processes of color formation, fermentation, oxidation, storage capacity. However, sometimes a strong passion for enriching the product with useful macro- and micronutrients affects the taste characteristics. Conclusion. When developing recipes and technologies for new-generation products, it is necessary that the enrichment of the product with important and necessary elements does not worsen the organoleptic characteristics. At the same time, it is necessary to ensure the safety of products without compromising consumer properties. The diet should contain all the necessary nutrients (nutrients) for a person in sufficient quantities and balanced with each other in the most favorable proportions.
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Sovilj-Nikić, Sandra, Bogdan Sovilj, Dušan Ješić, Vladimir Blanuša, Vladimir M. Tonkonogyy, and Liubov Bovnegra. "Development of the method of direct temperature measurement for gear cutting of cylindrical gears by hob milling." MATEC Web of Conferences 184 (2018): 03010. http://dx.doi.org/10.1051/matecconf/201818403010.
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The availability, adaptability, reliability and productivity of modern industrial complexes, maintenance costs, energy costs and industrial production costs depend also on the intensity of wear of the elements of tribo-mechanical systems. Gear cutting operations are usually a bottleneck of production, especially in higher types of production. Therefore, the necessity of researching the process of gear cutting by hob milling is obvious. In the paper a part of the results related to the possibility of direct measurement of the temperature in a very complex process of gear cutting of cylindrical gears by hob milling is given.
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GENERALOV, Victor Pavlovich, and Elena Mikhaylovna GENERALOVA. "SUSTAINABLE ARCHITECTURE. ENERGY EFFICIENCY AND ECOLOGICAL COMPATIBILITY OF LARGE-SCALE AFFORDABLE HOUSING WITH HONG KONG AS AN EXAMPLE." Urban construction and architecture 5, no. 4 (December 15, 2015): 23–29. http://dx.doi.org/10.17673/vestnik.2015.04.3.
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The article discusses issues related to the need for sustainable development of th-city environment, analyzes the problems arising in the process of formation of modern standards of energy efficiency and sustainability of affordable mass housing in Russia. Lighting beauty rich experience of Hong Kong in the use of green technologies during construction and operation of high-rise complexes, public housing, site improvement, development of public infrastructure, as well as criteria certification based on the level of environmental efficiency. Specifics of using different types of renewable energy, the active planting areas, protection measures against noise and innovative design approaches in terms of high-density development when the inclusion of residential units in the urban environment is based on the collection and comprehensive processing of large amount of information, covering architectural design, engineering, technological, economic and other aspects.
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Nikolaev, V. N., V. F. Stepanova, and A. V. Mikhailova. "Innovative Energy-Saving Sandwich-Panels for Industrial Construction." Stroitel'nye Materialy 787, no. 12 (2020): 47–51. http://dx.doi.org/10.31659/0585-430x-2020-787-12-47-51.
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Today, large-panel housing construction occupies a leading position, both in terms of construction speed and sales, which contributes to an increase in the volume of precast concrete housing construction. Outdated series of large-panel houses do not meet modern requirements. Old faceless panel houses are gradually replaced by beautiful housing complexes with different types of facades. At present, in the technology of construction of panel houses from sandwich-panels, the relevant trend is to reduce the standard thickness of the facade layer of a three-layer sandwich-panel (GOST 31310–2015 “ Three-Layer Reinforced Concrete Wall Panels with Effective Insulation. General Technical Conditions”) from 70 mm to 40 mm or less. Panel houses require a reduction in metal consumption, material consumption and improvement of thermal characteristics. This requires the development and implementation of new materials. The use of such construction products made of composite materials as diagonal flexible composite connections, flexible mounting loops and composite reinforcement mesh will make it possible to reduce the thickness of the protective layer of concrete without compromising the stability of the structure under the influence of the external environment due to the high corrosion resistance of the composite, reduce the weight of the panel, reduce the cost of manufacturing a unit of panel, increase the energy efficiency of the panel, ensure long-term strength of enclosing structures – create an innovative energy-efficient reinforced concrete sandwich panel of the XXI century.
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Degodyuk, S. E. "Ecologically recoverable models of farming biology in Ukraine." Interdepartmental thematic scientific collection "Agriculture" 2, no. 93 (December 22, 2018): 76–78. http://dx.doi.org/10.31073/zem.93.76-78.
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The article presents the modern vision of the development of biologization of agriculture by restoring natural landscapes and agrocenoses in the basins of small rivers of Ukraine with carrying out works on the restoration of the channels, floodplains and watershed basins with the implementation of agro-, chemo-, bio- and phytomelioration. The prospects of implementation of energy-saving and nature-compatible agricultural systems on the restored landscapes, ensuring the cultivation of toxicological products of plant growing, are determined. The universal application of organo-mineral bioactive fertilizers as natural complexes that meet the needs of mineral nutrition of plants for both traditional and organic farming systems is determined.
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Khan, Saeed, Hasley Vincent, and Brent Wilson. "The qualitative and quantitative classification of modern clastic marginal-marine depositional systems, Trinidad." Journal of Sedimentary Research 91, no. 7 (July 15, 2021): 710–34. http://dx.doi.org/10.2110/jsr.2020.119.
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ABSTRACT Trinidad's modern coastal depositional systems are for the first time documented by (traditional) descriptive and (modern) semiquantitative and quantitative classification methods. The processes controlling the morphology and distribution of these systems are also investigated. Google Earth™ satellite images, together with published basinal processes data (e.g., significant wave height, surface littoral currents, and tidal cyclicity) are used to describe system morphology, map depositional elements, and to determine the processes responsible for system distribution, respectively. Coastal depositional systems along Trinidad's east, south, and west coasts comprise deltas, estuaries, tidal-inlet complexes, strandplains, and tidal flats. Their distribution is controlled by the wave regime, although they are also influenced by tidal and fluvial processes. The wave regime changes from wave-dominated along the open east coast, to mixed-energy wave-dominated along the semi-sheltered south coast, and to mixed-energy tide-dominated along the sheltered west coast. Distribution of depositional systems related to this regime are such that the wave-dominated east coast sees the development of wave-dominated estuaries. The south coast has a series of wave-dominated, tide- and river-influenced deltas. The sheltered west coast is the most morphologically diverse with river- and wave-dominated deltas, strandplains, and tidal flats. The application of semiquantitative and quantitative classification methods on modern systems has showed their competence in classifying mixed-influence systems from their morphology and sedimentary record. Quantitative classification using depositional elements lends an appreciation to the morphological signatures of mixed-influence systems. Quantitative classification for sedimentary sections gives an appreciation of the preservation of mixed-influence physical processes. The combination of both allows the correlation of the impact of physical properties on morphology and sedimentary record (i.e., possible disparities between morphology and processes). The combination of semiquantitative and quantitative methods may also hold the key to unlocking the mixed-processes classification of depositional elements.
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Lilić, Nikola, Aki Jääskeläinen, Aleksandar Cvjetić, and Sari Tappura. "Analysis of occupational health and safety system performance measurement in mining and energy complex." Tehnika 75, no. 6 (2020): 573–79. http://dx.doi.org/10.5937/tehnika2005573l.
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In modern mining complexes, the amount of available information on the performance of occupational health and safety systems is constantly increasing. Measurement and evaluation of system performance, as well as the need to develop a better measurement model, arises primarily due to necessity of the improvement of occupational health and safety. The scope of the model aiming to maturity analysis of safety performance measurement, which was applied in the research whose results are presented in this paper, included the performance measurement practice, the commitment and culture of performance measurement and the use of measurement results. In addition to the three basic topics mentioned, an assessment related to the state of the occupational health and safety system was added. As a result of the application of the proposed model, an overall maturity score was obtained. This paper presents the results of the maturity analysis of occupational health and safety system performance measurement in the company TE-KO "Kostolac", which identifies areas that will be given special attention in the future in terms of improving the management of occupational health and safety.
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Abel, Martin, and Lothar Frommhold. "Collision-induced spectra and current astronomical research." Canadian Journal of Physics 91, no. 11 (November 2013): 857–69. http://dx.doi.org/10.1139/cjp-2012-0532.
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Collision-induced spectra are the spectra of complexes of two or more atoms or molecules in a “fly-by” collisional encounter. Collision-induced absorption (CIA) has been observed in many dense gases and gas mixtures, in most cases at infrared frequencies in the form of quasi continua, and also in liquids and solids. CIA spectra of several binary complexes have been computed using modern quantum chemical methods, combined with molecular scattering theory, which couples the collisional complex to the radiation field as usual in other spectroscopic work. Binary collisional systems, such as H2 interacting with another H2 molecule, or with a helium or hydrogen atom, are first candidates for such computational work, owing to their small number of electrons and the astrophysical interest in such systems. The computed CIA spectra are found to be in close agreement with existing laboratory measurements of such spectra. Laboratory measurements exist at a limited selection of temperatures around 300 K and lower, but theory currently also provides CIA data for temperatures up to 9000 K and for higher frequencies (well into the visible), on a dense grid of temperatures and frequencies. For such calculations, detailed potential energy surfaces (PES) of the supermolecular complexes, along with the induced dipole surfaces (IDS), are needed so that the rotovibrational matrix elements of PES and IDS may be computed for the molecules involved, which may be highly rotovibrationally excited. Modern astronomical research needs opacity tables for analyses of the atmospheres of “cool” objects, such as cool white dwarfs, solar and extrasolar planets and their big moons, cool main sequence stars, and “first” stars, which are briefly described in a concluding section.
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Zhang, Xiuheng, Ningning Hu, Tianchi Chen, and Songquan Wang. "Lubrication properties of silver complexes under the high temperature abrupt operating conditions." Industrial Lubrication and Tribology 74, no. 2 (January 20, 2022): 186–96. http://dx.doi.org/10.1108/ilt-09-2021-0399.
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Purpose This study aims to prevent the sharp decline in the load-carrying capacity of lubricating oil film under harsh conditions of abrupt changes in friction interface temperature, which is a major challenge in lubrication technology. Design/methodology/approach In this paper, we synthesized a series of silver pyrazole methylpyridine complexes containing a high metal concentration and minimal supporting organic ligands (complex 1 [Ag(LMe)]2(BF4)2, complex 2 [Ag(Li-Pr)n](BF4)n and complex 3 [Ag(LMe)(NO3)]2). The thermal decompose behavior of as-prepared silver complex was investigated by thermogravimetric analysis and X-ray photoelectron spectrometry (XPS). Four-ball friction testers were used to evaluate the friction and wear properties of lubricating oil in the temperature ranges associated with the operation of modern heavy machinery. Findings The complex decomposed silver particles at high-temperature, which could fill the pits on the friction surface, change the wear form of the friction pair and reduce the roughness of the friction surface. Reduction in both friction coefficients and wear scar diameters was obtained by adding silver complexes in oil. The lubricating oil, with the additive content of 1.5 Wt.%, has the best tribological performance, moreover, the lubricating performance of the silver complexes in oil were correlated with their concentration and thermal decomposed temperatures, respectively. Originality/value As a result, a series of silver pyrazole methylpyridine complexes as oil additives can support friction and wear reduction under abrupt high-temperature conditions are intended to be a controllable backup lubricant additive.
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Aliev, Dmitry S., Alexander V. Ivanov, Yuri G. Pasternak, Vladimir A. Pendyurin, and Egor S. Chesnokov. "Asymmetrical dipole antenna based on a phase-correcting dielectric lens." Physics of Wave Processes and Radio Systems 24, no. 3 (November 18, 2021): 92–99. http://dx.doi.org/10.18469/1810-3189.2021.24.3.92-99.
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Problem. Modern mobile robotic systems are increasingly used in various fields of human activity. More and more stringent requirements are imposed on them to ensure high throughput, broadband and reliability of data transmission and control channels at the maximum distance from the control center. And what I would like to note separately is the requirement to reduce the cost of such complexes as much as possible. Therefore, the development of technologically advanced, economically feasible antenna systems that provide an increase in the energy potential of the radio channel in the interval of the robotic complex - control point is one of the ways to solve this problem. Formulation of the problem. It is required to develop a mechanically strong, technological antenna, built on the basis of lens structures of various configurations, made of modern dielectric materials, characterized by reduced weight and size characteristics and cost price, which will increase the level of radiated electromagnetic energy in a wide frequency band. Purpose of the article. Present the developed model of an asymmetric dipole antenna and the results of a numerical experiment. Result. The antenna design is made on a metallized round substrate and is a polystyrene cylinder with a funnel-shaped hole, inside which there is an asymmetrical conical vibrator arm. The results of calculations showed that in the frequency band, which is used to organize direct broadband radio communication channels with robotic complexes, the gain varies within 5.5-9 dB, which is superior in this parameter to the commonly used whip antennas. The calculated standing wave ratio confirms the performance of the developed antenna model in a wide frequency band. The impedance response and the Smith-Smith diagram showed a preliminary calculated spread of the input impedance of the antenna from 30 to 95 ohms. Practical significance. The proposed antenna model ensures manufacturability, mechanical strength, and low cost. The full-azimuth radiation mode and increased gain make it possible to predict the possibility of using this antenna as part of the equipment for the data transmission channel and control of robotic complexes such as unmanned aerial vehicles.
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Kazymov, Ivan M., Boris S. Kompaneets, and Oleg N. Drobyazko. "Development of a system for control of electric energy parameters in the distribution network." Transportation Systems and Technology 7, no. 2 (July 1, 2021): 106–18. http://dx.doi.org/10.17816/transsyst202172106-118.
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Background: The creation and distribution of technical means and complexes aimed at building effective control systems for electrical networks using information that can be collected by modern metering devices, as well as organizing work in an automated mode, is an urgent task at the present stage of development of the electric power industry in Russia and in the world.
Aim: The research presented in this article is aimed at creating an effective system for monitoring the parameters of electrical energy in distribution networks of low and medium voltage levels.
Methods: The study was carried out using the theoretical foundations and basic laws of electrical engineering, as well as methods of computer modeling and CAD.
Results: A description of the developed system is given, the applicability of its use is graphically shown and substantiated in writing, the possibilities and prospects of application are indicated, and recommendations for practical application are given.
Conclusion: The results obtained can be used by power grid companies to analyze the state and efficiency of power grids, and may also be of interest to researchers working on the creation of digital twins of power grids.
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Manakov, A. D., V. A. Shatokhin, and A. A. Poroshin. "ACTIVE PROTECTION METHOD FOR POWER SUPPLY OF MICROPROCESSOR COMPLEXES OF RAILWAY AUTOMATION AND REMOTE CONTROL." Automation on Transport 7, no. 4 (December 2021): 522–38. http://dx.doi.org/10.20295/2412-9186-2021-7-4-522-538.
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The article discusses the issues of increasing the reliability, safety, and survivability of power supply for railway automation and remote control devices. The authors have analyzed failures in the automation and remote control facilities in recent years, estimated the proportion of device failures due to lightning overvoltages, and highlighted an upward trend in the railway automation and remote control failures due to switching and lightning overvoltages. The design of modern uninterruptible power supply devices is provided with a description of the main structural units. Methods are proposed for the implementation of active protection for power supply of railway automation and remote control by introducing the thunderstorm locating functionality into the technical diagnostics and monitoring system. This solution will enable registration of hazardous thunderstorm activity and maintaining the devices’ serviceability and effi ciency, and will ensure the continuity and safety of the transportation process, which will help reduce damage incurred due to hazardous electromagnetic eff ects, including lightning overvoltages. The article suggests synchronizing the thunderstorm location system with the existing lightning detection networks through the Internet, a global computer network, as well as the option of installing a single-point lightning detector at an electrical interlocking post.
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Riazantsev, O., and V. Shylin. "Hydrotechnical construction, water engineering and water technologies: some modern issues and training of professionals." New Collegium 1, no. 103 (March 30, 2021): 29–34. http://dx.doi.org/10.30837/nc.2021.1.29.
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The article considers modern problems and problems that currently exist in hydraulic engineering and hydropower, problems of land and water resources. And also problems of training of experts. able to solve these problems
Recently, the problems caused by existing large hydraulic structures are increasingly mentioned. The main problem is that the nodes of hydraulic structures often form artificial reservoirs of a large plane. It often happens that the depths of reservoirs are insignificant. This situation is very unsatisfactory because the land is used irrationally. which is a valuable resource and has a high cost and can be used effectively for agriculture. Creation of hydraulic structures, complexes of hydraulic structures significantly change the hydrological, biological. salt and thermal regimes of the river on which they are built, the regime of groundwater movement, cause climate change in the surrounding areas. Cascades of hydraulic structures have a special influence. As an example, we can cite the Dnieper cascade of hydroelectric power plants and compare the area of its reservoirs and the amount of electricity generated by its power plants with the world's largest hydroelectric power plants.
In addition, shallow water bodies cause a significant deterioration in water quality. And since reservoirs are often a source of water supply for settlements and industrial enterprises, this situation is controversial. Intensive construction of hydraulic structures and their complexes took place during the twentieth century, many of them exhausted their resources and needed either reconstruction or decommissioning. The reasons for this state of affairs are the development of technology, the emergence and development of other alternative energy sources for thermal and nuclear power plants, other than hydraulic. Also, since the construction of many buildings, approaches to determining their profitability and efficiency have changed.
Aspects of training specialists in hydraulic engineering and water engineering, able to solve these problems of the industry today, and those that will face them in the near future are considered. The ability of a competent professional to anticipate the consequences of any action must be an integral part of it. Attention is drawn to the need to apply conceptually new approaches to solving problems of construction of new hydraulic and hydropower facilities, operation and reconstruction of existing facilities.
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Kolchina, Nina, Vladimir Khavinson, Natalia Linkova, Alexander Yakimov, Dmitry Baitin, Arina Afanasyeva, and Michael Petukhov. "Systematic search for structural motifs of peptide binding to double-stranded DNA." Nucleic Acids Research 47, no. 20 (October 10, 2019): 10553–63. http://dx.doi.org/10.1093/nar/gkz850.
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Abstract A large variety of short biologically active peptides possesses antioxidant, antibacterial, antitumour, anti-ageing and anti-inflammatory activity, involved in the regulation of neuro-immuno-endocrine system functions, cell apoptosis, proliferation and differentiation. Therefore, the mechanisms of their biological activity are attracting increasing attention not only in modern molecular biology, biochemistry and biophysics, but also in pharmacology and medicine. In this work, we systematically analysed the ability of dipeptides (all possible combinations of the 20 standard amino acids) to bind all possible combinations of tetra-nucleotides in the central part of dsDNA in the classic B-form using molecular docking and molecular dynamics. The vast majority of the dipeptides were found to be unable to bind dsDNA. However, we were able to identify 57 low-energy dipeptide complexes with peptide-dsDNA possessing high selectivity for DNA binding. The analysis of the dsDNA complexes with dipeptides with free and blocked N- and C-terminus showed that selective peptide binding to dsDNA can increase dramatically with the peptide length.
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Ulloa, Osvaldo, Carlos Henríquez-Castillo, Salvador Ramírez-Flandes, Alvaro M. Plominsky, Alejandro A. Murillo, Connor Morgan-Lang, Steven J. Hallam, and Ramunas Stepanauskas. "The cyanobacterium Prochlorococcus has divergent light-harvesting antennae and may have evolved in a low-oxygen ocean." Proceedings of the National Academy of Sciences 118, no. 11 (March 11, 2021): e2025638118. http://dx.doi.org/10.1073/pnas.2025638118.
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Marine picocyanobacteria of the genus Prochlorococcus are the most abundant photosynthetic organisms in the modern ocean, where they exert a profound influence on elemental cycling and energy flow. The use of transmembrane chlorophyll complexes instead of phycobilisomes as light-harvesting antennae is considered a defining attribute of Prochlorococcus. Its ecology and evolution are understood in terms of light, temperature, and nutrients. Here, we report single-cell genomic information on previously uncharacterized phylogenetic lineages of this genus from nutrient-rich anoxic waters of the eastern tropical North and South Pacific Ocean. The most basal lineages exhibit optical and genotypic properties of phycobilisome-containing cyanobacteria, indicating that the characteristic light-harvesting antenna of the group is not an ancestral attribute. Additionally, we found that all the indigenous lineages analyzed encode genes for pigment biosynthesis under oxygen-limited conditions, a trait shared with other freshwater and coastal marine cyanobacteria. Our findings thus suggest that Prochlorococcus diverged from other cyanobacteria under low-oxygen conditions before transitioning from phycobilisomes to transmembrane chlorophyll complexes and may have contributed to the oxidation of the ancient ocean.
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CHERNYH, O. N., A. V. BURLACHENKO, and V. V. VOLSHANIK. "PROSPECTS FOR COMBINING SOLAR PLANTS WITH STRUCTURAL ELEMENTS OF ENVIRONMENTAL HYDRAULIC FACILITIES AND COMPLEXES." Prirodoobustrojstvo, no. 2 (2021): 57–65. http://dx.doi.org/10.26897/1997-6011-2021-2-57-65.
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The issues of solving modern problems related to meeting the energy needs of environmental hydraulic engineering are considered. The problem of improving the methodological basis for choosing the optimal arrangement of elements of photovoltaic devices (SPEU) on the blocks of the dam building of hydroelectric power plants (HPP) of 4 main types is formulated. The graphical dependences of the estimation of the power ratio of the combined SPEU and HPP on the diameter of the turbine wheel are analyzed. As a result of the analysis of the influence of the location of the transformer on the possibility of placing the SPEU on the buildings of the hydroelectric power station, it was revealed that in order to increase the adaptability of the revitalized even large hydro system with a separate building of the hydroelectric power station, it is preferable to place power transformers from the downstream side. It is noted that according to the results of the schematic study for the medium-pressure hydroelectric complex Lagdo in the north of Cameroon, the placement of solar cells will provide an additional 6.95% of the capacity of the operating hydroelectric power station.
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VENEGAS-ANDRACA, SALVADOR ELÍAS. "Introduction to special issue: Physics and computer science – quantum computation and other approaches." Mathematical Structures in Computer Science 20, no. 6 (November 8, 2010): 995–97. http://dx.doi.org/10.1017/s0960129510000423.
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Computer science and computer engineering are disciplines that have very definitely permeated and transformed every aspect of modern society. In these fields, cutting-edge research is about new models of computation, new materials and techniques for building computer hardware and novel methods for speeding-up algorithms. But it is also about building bridges between computer science and various other scientific fields, bridges that allow scientists to both think of natural phenomena as computational procedures and to employ novel models of computation to simulate natural processes (for example, quantum walks have been used to model energy transport in photosynthetic light harvesting complexes (Hoyer et al. 2010; Caruso et al. 2010)). A convergence of scientific, technological, economic and epistemological demands is driving and integrating this research.