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Journal articles on the topic 'Building technological preparation of the building'
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1
Lutov, A. G., Yu V. Ryabov, R. I. Shaydullin, and I. I. Shambasov. "Intellectual Control of Processes of Technological Preparation of Machine-Building Production." Bulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control & Radioelectronics 17, no. 3 (2017): 117–24. http://dx.doi.org/10.14529/ctcr170312.
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Rauf Huseynli, Rauf Huseynli. "PURPOSE AND DESCRIPTION OF THE COMPRESSOR STATION." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 06, no. 02 (April 9, 2021): 53–57. http://dx.doi.org/10.36962/pahtei0602202153.
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All work on the construction of pumping and compressor stations is usually divided into two groups of zero cycle work and ground cycle work. The work of the zero cycle includes the preparation of the construction site, earthworks, work on the construction of foundations for buildings, pumping units and technological equipment, work on the construction of underground pipelines and utilities. The work of the ground cycle includes work on the construction of buildings for pumping and compressor shops and auxiliary buildings, installation work on installation and fixing on the foundations in the design position of pumping units. Compressor stations (CS) have been installed along the pipeline route to maintain a certain flow rate of the transported gas and to ensure optimal pressure in the pipeline. A modern compressor station is a complex engineering structure that provides the basic technological processes for the preparation and transportation of natural gas. Keywords: compressor stations, gas pipeline, building structure, Booster compressor stations.
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Shestakova, Ekaterina, Natalia Malshchukova, and Sergey Chizhov. "Building information modeling concept in bridge construction." E3S Web of Conferences 157 (2020): 06019. http://dx.doi.org/10.1051/e3sconf/202015706019.
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This article is devoted to the initial stages of formation and the prospects of development of BIM technologies, the analysis of the general trends, process of formation of uniform resource space and training of professional engineering staff for transport infrastructure. The main objective of this article is the designation, the analysis of problems and formation of a comprehensive approaches within preparation of the modern level of development of design decisions for informational model which is capable to process in a complex an engineering, technological and economic component and will be relevant throughout all life cycle of an object. In articles authors presented results of poll to PGUPS on a subject “to BIM technology: training of specialists in the field of transport constructions” which convincingly show need of preparation and development of engineering potential for BIM introduction. In conclusions the concept of BIM for bridge projection taking into account start of pilot standard projects with use 3D — projections and with engaging of the modern methods of engineering is presented. The article also discusses the prospects for the development of design in Russia.
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Fridrich, Jan, and Karel Kubečka. "Fire Risk in Relation to BIM." Advanced Materials Research 899 (February 2014): 552–55. http://dx.doi.org/10.4028/www.scientific.net/amr.899.552.
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Technological advances in the field of technical coordination and simulation provides a new method in construction (BIM, Building Information Modeling). These methods will enable us to implement a risk occurrence of fire and its spread already in preparation of the building itself. Next message informs about the possibilities and what procedures can be implemented alone fire safety solutions to building information model. His subsequent use in design practice and streamlining the entire process.
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Prais, S. J., and Hilary Steedman. "Vocational Training in France and Britain: the Building Trades." National Institute Economic Review 116 (May 1986): 45–55. http://dx.doi.org/10.1177/002795018611600106.
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The emphasis placed in Germany on vocational training and education was explored in previous studies by the Institute. These drew attention to: the greater numbers with vocational qualifications there than in Britain; the generally broader scope of German training, leading to greater adaptability in the face of technological progress; more extensive preparation at school for subsequent training; and the consequences for productivity (see National Institute Economic Review, August 1983 and February and May 1985). This article presents the first of a series of similar comparisons for France and Britain, with particular attention to French full-time vocational secondary schools for 14-17 year olds.
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L.S., Gurinovich, and Usov B.A. "The mechanochemical treatment of the building materials." Ekologiya i stroitelstvo 3 (2015): 22–25. http://dx.doi.org/10.35688/2413-8452-2015-03-004.
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The article is devoted to the obtaining of activated additives and cements, to improve the quality or the obtaining of new building materials using rotary pulsation apparatus (RPA). It also considers the efficiency of the RPA. As a result the works were obtained in different activated in the RPA chemical additives for concrete from sparingly soluble in water products established distinctive features of the solutions of plasticizers and complex additives, treated in the RPA. It is shown that the preparation of concrete with the use of activated materials in the RPA to reduce labor costs in the manufacture of a product, reduce the consumption of cement, flow additives, plasticizers, water consumption, accelerate hardening and to increase strength and durability of concrete. It is noted that when changing the amount of additives in the solution and time of mechanochemical treatment, it becomes possible to control the technological parameters of concrete mixture (mobility, stiffness) and thus increase the strength of concrete. When the content of additives PDO 0.15% and activation time of 5 minutes the increase in strength was 60 kg/cm2. With increasing number of activated additives up to 1 % strength in concrete was increased, while the introduction of the same amount of additives without activation promoted a decrease in strength below without additional values.
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Gurieva, Victoria A., and Aleksandr V. Doroshin. "Building Ceramics Based on Carbonate-Containing Raw Materials." Solid State Phenomena 284 (October 2018): 910–15. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.910.
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The results of the production of wall ceramics based on the composition of low-melting argillaceous raw materials - loam and fuel slag in an amount of 10-30% by the method of semi-dry pressing are presented. Pre-baking and calcining properties of clay materials are investigated, the results of x-ray diffraction analysis and differential thermal analysis of the raw materials are given. The results obtained by the method of mathematical planning of the experiment made it possible to develop a model of ceramic bricks of the racial composition, to construct empirical dependencies in the system «technogenic product-technological factor-property» and to establish the influence of the addition of fuel slag on the basic physical and mechanical properties of wall ceramics: strength, density, water absorption , shrinkage. The results of studies of the modifying role of the container glass in the processes of pyrogenic synthesis of clay-slag masses and its effect on the preparation of a ceramic shard of a racial composition with the required properties are shown.
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Horn, Valéria V., Annamária Dudás, and Anita Terjék. "The Role of Façades in Solar Energy Utilization." Buildings 10, no. 11 (November 19, 2020): 209. http://dx.doi.org/10.3390/buildings10110209.
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During the summer, the environmental impact of building operations can be reduced by optimizing ventilation and preventing heat from entering the building. Shades are used to create a comfortable temperature state in interiors without operating mechanical equipment or using low-power systems. The most significant factor in reducing energy consumption would be if the spatial delimitation of buildings utilizes solar energy in a passive or active way. At the same time, limiting the energy entering through windows reduces the temperature of interiors and the amount of energy used for cooling; thus, the phenomenon of the urban heat island would be less exacerbated. In the case of existing historical buildings, there are limited possibilities to reduce the energy consumption of the building and to protect the buildings against excessive summer heating, especially in connection with the structural appearance of the doors and windows on the façade. This paper presents the preparation of a large-scale reconstruction project based on a newly developed combined window that can significantly reduce indoor summer overheating. Designing steps of the complex retrofitting of a traditional box-type window are highlighted based on the results of closely connected literature pertaining to thermal, ventilation, shading, and acoustical phenomena. The result is a detailed structural and technological design of the reconstruction for the historical window in a combined way, as the frame, glazing, ventilation, and shading are simultaneously developed and calculated approximately; moreover, active shading is integrated. One aim of this desktop study was to demonstrate that in the case of historical buildings, it is possible and necessary to reduce heat losses during the heating season and to minimize the risk of summer overheating, and to show that the surface of the façade could be converted into an energy producer.
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Čekon, Miroslav, Karel Struhala, and Daniel Kopkáně. "Preparation and Characterization of a Selective Polymer-Based Solar Absorber for Building Integration." Applied Sciences 10, no. 21 (November 6, 2020): 7861. http://dx.doi.org/10.3390/app10217861.
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Recent technological advances in solar absorber production may have created opportunities for new applications of these materials in buildings. A low-emissivity enhanced polymer-based absorber foil was developed and prototyped to demonstrate feasibility of the concept. This paper describes key development factors leading to a particular composition of the prototype and its testing, specifically spectroscopy measurements (both for shortwave and longwave regions) and environmental impact assessment of its production. It also provides comparison of the tested parameters with commercially available absorbers. The results show that the developed absorber has relatively good thermal emissivity (approx. 0.3), high solar absorption (0.95) and selectivity (3.2), and significantly lower (up to 98%) environmental impacts compared to the commercially available metal-based solar selective absorbers.
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Bocco Guarneri, Andrea. "Architect Werner Schmidt's Straw-Bale Construction." Key Engineering Materials 600 (March 2014): 727–38. http://dx.doi.org/10.4028/www.scientific.net/kem.600.727.
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Werner Schmidt (Trübbach, Switzerland, 1953) is one of the most interesting contemporary 'green' architects, particularly experienced in straw-bale building. His accomplishments include now 20 straw-bale buildings of which 14 at least partially load-bearing. This paper extracts some essential principles from his work and explains in detail his technological solutions. This is the result of a thorough analysis, carried on during the preparation of a monograph. The success of his approach derives from many factors, among which: - Schmidt's training as a mason. In contrast with many fellow architects, his designs are rooted in practicality and feasibility. Moreover, he actively participates to the construction work. - His holistic vision of ecological building: straw bales are chosen because of the overall advantages they offer. Preferably, he adopts a modified 'Nebraska' technique, using high-density 'jumbo bales' forming more than 120 cm thick walls. This rather unique method assures rapidity of construction, and allows to solve a number of criticalities associated with 'small bale' building. - Not seeking the highest possible performances lets to focus economic and technical efforts on few elements that really need to be state-of-the-art. The envelope can be built with simple techniques, while parts that need be built precisely (stairs, cooking implements, baths, etc.) can be prefabricated. Schmidt's work shows that high ecological consideration can be coupled with convincing architectural results. The quality of his buildings in terms of energy performance, living value, and beautiful form constitutes a good practice promoting new ways to 'green' architecture.
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Kalús, Daniel, Jozef Gašparík, Peter Janík, Matej Kubica, and Patrik Šťastný. "Innovative Building Technology Implemented into Facades with Active Thermal Protection." Sustainability 13, no. 8 (April 15, 2021): 4438. http://dx.doi.org/10.3390/su13084438.
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The article focuses on the description of an innovative solution and application of active thermal protection of buildings using thermal insulation panels with active regulation of heat transfer in the form of a contact insulation system. The thermal insulation panels are part of a prefabricated lightweight outer shell, which together with the low-temperature heating and high-temperature cooling system creates an indoor environment. The energy source is usually renewable energy sources or technological waste heat. Research and development of an innovative facade system with active thermal protection is in the phase of computer simulations and preparation of laboratory measurements of thermal insulation panels with various combinations of energy functions. In the article we present theoretical assumptions, calculation procedure and parametric study of three basic design solutions of combined energy wall systems in the function of low-temperature radiant heating and high-temperature radiant cooling.
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Adam, Kharisma, Zairin Zain, and Valentinus Pebriano. "SEKOLAH MENENGAH KEJURUAN TEKNIK KOMPUTER DAN INFORMATIKA DI KUBU RAYA." JMARS: Jurnal Mosaik Arsitektur 9, no. 1 (February 17, 2021): 199. http://dx.doi.org/10.26418/jmars.v9i1.44971.
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Technological developments that continue to evolve changes in various activities such as industries that rely heavily on computers and robot technology to increase industrial production. From this industrial development, it requires competent human resources who can compete in the industrial world. One way to improve human resources in the field of technology is to build a Computer Engineering and Informatics Vocational High School. Improvement and additional facilities are needed to support education in Kubu Raya Regency. The design stages of the Computer and Informatics Engineering Vocational High School in Kubu Raya Regency start from the preparation stage, the analysis stage, the synthesis stage and the design stage. Application of understanding tropical architecture with consideration of the principle of spatial comfort in buildings related to aspects of the body size of the building user, aspects of human space based on human activities in it, audio comfort, visual comfort, and thermal comfort in buildings. The application of renewable energy, such as solar power generation, is applied to building facades to provide electricity sources and block light from entering the room. In addition, the application of laterite brick material and roaster for air humidity adjusts the geographical area of Kubu Raya Regency which is a tropical area. The formation of buildings with a philosophical composition of shapes and room analogies from the Printed Circuit Board gives the meaning of access to rooms that are connected to one another.
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Pavlova, Oksana, Natalia Chirkova, and Irina Burlakova. "Building a practice-oriented model of pre-service teacher education." SHS Web of Conferences 87 (2020): 00094. http://dx.doi.org/10.1051/shsconf/20208700094.
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The article analyses modern trends in the university graduates’ training based on a practice-oriented approach, which is interpreted as training focused on the specifics of solving pedagogical problems that arise in real practice. The world experience of practice-oriented educational practice aimed at the formation of a creative, thinking teacher is analysed. The author’s three-segment practice-oriented model of teacher training has been developed. The structural components of the model and the links between them are described: principles of model building (practice-oriented orientation, principles of flexibility, validity, compliance and integrativity); system-forming subjects (professional community, university and school); blocks (target, factorial, theoretical-methodological, content-technological, effective). The peculiarity of the visual image of the constructed model (fractal) is that each separate segment of the system retains the properties of the entire system, which means that at each level, target guidelines are preserved and the basic requirements for the preparation process are consistent with each other.
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Bazaras, Darius, Kristina Čižiūnienė, Ramūnas Palšaitis, and Igor Kabashkin. "Competence and Capacity-Building Requirements in Transport and Logistics Market." Transport and Telecommunication Journal 17, no. 1 (March 1, 2016): 1–8. http://dx.doi.org/10.1515/ttj-2016-0001.
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Abstract The article analyses theoretical aspects of the qualitative assessment of logistics and transport specialists’ potential, as well as provides research results on competence and capacity-building process in preparation of logistics and transport specialists. The results enabled to identify problematic areas of graduate integration in the labour market and foresee the possible requirements for professional development. In some cases, internal motivation is related to problematic points or negative view from the environment, as well as poor understanding of knowledge benefits in the person’s practical life. Training and education is objectively at the meeting point between research, technological and organisational systems. In such conditions the objective of the education on logistics is to offer the customers the best possible service in the field of the transfer of knowledge in harmony with the trend in logistics programme development. The main problems and perspectives of logistics education and training process are discussed in this article.
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Chai, Wen Jing. "Research on the Influence of Deep Foundation Pit Excavation on Neighboring Buildings." Advanced Materials Research 1055 (November 2014): 131–34. http://dx.doi.org/10.4028/www.scientific.net/amr.1055.131.
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With the development of society and economy, China's investment in construction projects is increasing, which requires the construction and management staff to improve their professional level, to develop a more scientific construction plan to ensure construction quality, and ultimately to the construction goal. Especially in deep foundation excavation process, it not only needs to upgrade the technological level of the excavation, but also needs to enhance the impact of researches on the approaching buildings to make the appropriate preparations to reduce adverse effects on the surrounding buildings, which meets the actual needs of construction, to ensure building construction safety. By exploring the impact of deep excavation on adjacent buildings, the paper makes the construction workers deeply understand the importance of deep foundation construction work.
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Blyumenshteyn, A. A. "CHOOSING OF THE TYPE OF MACHINE DEVICES DURING THE TECHNOLOGICAL PREPARATION OF THE PRODUCTION OF HIGH-TECH PRODUCTS." Izvestiya of Samara Scientific Center of the Russian Academy of Sciences 22, no. 5 (2020): 41–47. http://dx.doi.org/10.37313/1990-5378-2020-22-5-41-47.
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Modern machine-building enterprises are actively introducing digital technologies at all stages of technological preparation of production. Great attention is paid to the rational choice of the type of machine tools. This article deals with the model for choosing the type of machine tools in the required amount. The determining factors here are quantity, productivity and types of retaining devices, rate of expenditure of machine and labour forces, production volume of details, etc. The model can be used in the development of a decision support system for the technological elaboration of design documentation.
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Lapidus, Azariy Abramovich, and Aleksandr Olegovich Fel’dman. "Valuation of organizational and technological capacity of a building project formed on the basis of information flows." Vestnik MGSU, no. 11 (November 2015): 193–201. http://dx.doi.org/10.22227/1997-0935.2015.11.193-201.
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At the modern stage of construction branch development there is a current task of forming the indicator, the application of which will allow forecasting the final indicator of a construction project depending on organizational-technological and management solutions influencing it - the organizational and technological capacity of a construction project. The construction project capacity, which has been actively investigated in the recent years, is formed on the basis of account for the processes directly or tangentially related to production and technological specifics of the construction industry on all the stages of project development: design solutions, preparation of a construction site, general construction and finishing works, special works (building water supply and water disposal systems, technological equipment, electric wiring and low currents, ventilation, conditioning and fire security, elevators), external supply lines, amenities. The introduction of organizational-technological capacity concept of a building project in the form of a numerical integral value is given in the article, allowing to make relevant management decisions at any step of the construction project. The article deals with the essence of information flows as an important component in the construction project evaluation. The authors discuss the separation of information flows into groups, depending on different criteria. As a result, the mathematical model is offered, which gives the construction project potential evaluation with taking into account the impact of information flows.
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Dytczak, Mirosław, and Grzegorz Ginda. "IDENTIFICATION OF BUILDING REPAIR POLICY CHOICE CRITERIA ROLE." Technological and Economic Development of Economy 15, no. 2 (June 30, 2009): 213–28. http://dx.doi.org/10.3846/1392-8619.2009.15.213-228.
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Preparation of building repair activities in multi‐family dwelling houses poses an important problem for habitat co‐operatives in Poland. Firstly, such co‐operatives own and manage a lot of buildings. Secondly, scarcity of economic and non‐economic resources requires their effective allocation. Such allocation should be based on properly prioritised actions’ alternatives. Unfortunately, due to the complex influence of the surrounding environment, the influence of a considerable number of components and diverse point of views is to be included during the analysis of repair needs. Potential influences result from a bunch of sources. The sources are of economic, technological, social and environmental nature. To support a decision‐maker effectively, information pertaining to the importance of particular influences is required. Such information can be obtained by special means of multi‐criteria decision analysis (MCDA) methodology. The application of the chosen approach – Decision Making Trial and Evaluation Laboratory (DEMATEL) for classification of repair needs assessment criteria to shape repair policy appropriately is presented in this paper. Santrauka Pasirengimas remontuoti daugiabučius gyvenamuosius namus sukelia daug problemų tokių namų kooperatyvams Lenkijoje. Pirma, tokie kooperatyvai turi ir valdo daug pastatų. Antra, dėl nepakankamų ekonominių ir neekonominių išteklių reikia juos efektyviai paskirstyti. Toks paskirstymas turi būti pagrįstas išnagrinėjus alternatyvas ir nustačius prioritetines. Deja, remonto poreikio analizę veikia sudėtinga aplinka. Tam įtaką daro daug komponentų, reikia suderinti įvairius požiūrius. Potenciali įtaka kyla iš šaltinių gausos. Yra ekonominiai, technologiniai, socialiniai ir gamtinės aplinkos šaltiniai. Efektyviam sprendimui priimti reikia turėti informacijos apie įtakos svarbą. Tokiai informacijai gauti gali būti pritaikyta speciali daugiakriterinės sprendimų analizės metodologija. Straipsnyje pristatomas metodas, kuriuo vertinami remonto poreikio kriterijai ir padedama suformuluoti remonto politiką.
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Dėjus, Titas. "DANGEROUS ACTIONS WHILE INSTALLING BUILDING CONSTRUCTIONS AND MEANS TO DECREASE THEIR UNDESIRABLE INFLUENCE." Engineering Structures and Technologies 1, no. 2 (June 30, 2009): 111–21. http://dx.doi.org/10.3846/skt.2009.14.
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Construction business is quite specific, that is why work safety management in construction companies is very specific too. Work safety management in construction companies and sites is difficult and much more complicated than in companies of other businesses. Analysis of work safety management systems in construction companies can be very diverse. It depends on the work quality and technological processes in construction sites (from the preparation for construction work to different extra processes). Because of the specific features of building, like its dynamic or diversity, it is very difficult to ensure safe work conditions constructing using traditional methods and especially new methods, processes, and technologies. There is practically always a risk of having an accident at work (while installing reinforced concrete, wooden or metal constructions or doing other construction technological processes) because it is almost inconceivable to decrease its possibility to the least level. Work safety in this article is analyzed in the light of dangerous actions doing installation or other construction work. There is also made a survey of scientific literature about dangerous actions and of experience of Lithuanian Work Inspection at construction sites, and report on observation of exact construction sites picking out the most dangerous factors, the most important of which is labors’ falling down from height. In the article there are data (about influence of dangerous actions on construction process) analyzed and systemized. All of them were picked out during forensic examination of work safety Summarizing made researches the author advises to use such preventions: it is advisable to pay attention not to all possible dangerous factors, but only to three of them – falling down from height, objects falling down on labors, and injuries made by working mechanisms. The author advises to use work safety assurance scheme (3rd picture) and while preparing technological projects to use 3S principle (principle of three schemes).
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Skorik, Tatiana, Natalia Galkina, and Elena Glazunovà. "Resource-saving technologies for cleaning gas emissions in the production of building materials." MATEC Web of Conferences 196 (2018): 04070. http://dx.doi.org/10.1051/matecconf/201819604070.
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High requirements to ensure sanitary and hygienic working conditions and reduce harmful emissions into the environment are provided through ventilation systems equipped with efficient and economical equipment. The task of improving the air basin is to reduce the amount of harmful substances in the ambient air to the level of MPC and lower, which, with increasing volumes of ventilation and process emissions, determines the increased requirements for industrial filters. The most effective are wet devices, in which the process of gas cleaning is carried out through interaction with the liquid, most often with water. The authors developed a number of high-efficiency dust-collecting apparatuses, in which the majority of methods for contacting elements with a liquid are realized simultaneously, which determines the maximum completeness of gas purification from dusts with different physico-chemical properties. One of them is an aerohydrocyclone intended for combined simultaneous cleaning of a technological product in the form of a suspension and dusty air removed from the shelters of technological equipment. This apparatus with internal circulation of liquid, where the concentration of trapped dust in the irrigating liquid affects the efficiency of dust collection, the frequency of water replacement, the operating mode and the load of the water-slurry farm. The particulate materials of the slurry intensifies the process of dispersion, irrigating liquid and its structural viscosity, as well as the stability of the formed foam, which contributes to a more effective manifestation of various wet dust collection mechanisms.The implementation of the installation of a wet dust collector for complex cleaning in the technological line for the preparation of lime milk from the construction materials factory made it possible to reduce the concentration of dust in emissions at the maximum level of ensuring the economy of aspiration systems. The obtained results testify to the positive experience of the operation of wet dust collectors for complex cleaning in the building materials industry, and the regularities connecting the operation modes of the apparatus with the properties of trapped dusts and the features of technological processes make it possible to recommend them for use in various enterprises.
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Zimin, E. M., and V. V. Martishkin. "Determining quality of technologies taking into account main production and organizational measures." Omsk Scientific Bulletin, no. 174 (2020): 22–26. http://dx.doi.org/10.25206/1813-8225-2020-174-22-26.
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The article presents the list of singular indicators of technological support of technologies and the method of determining their actual values and their quality levels. According to the results of determining the quality level of technological processes, one of three management decisions can be made. The paper describes singular quality indicators that are directly related to the quality of technological processes in the machine-building industry, at the stage of design and preparation of technical documentation. And also presented are complex quality indicators, based on which determine the generalized indicator of quality of the evaluated technological process. As a result of the work the features of conformity assessment of technological processes and related mandatory requirements are formed. Also described is the process of obtaining a qualitative and quantitative assessment of the quality of the technological process with a detailed description of all necessary formulas
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Malinowski, P., J. S. Suchy, and J. Jakubski. "dTechnological Knowledge Management System for Foundry Industry." Archives of Metallurgy and Materials 58, no. 3 (September 1, 2013): 965–68. http://dx.doi.org/10.2478/amm-2013-0111.
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Abstract Technological knowledge is a collection of information from each stage of the casting production preparation process along with production data and quality control data. Knowledge and experience are the most important factors for the dynamic development of each foundry. Efficient archiving and management of technological knowledge, including computer simulations, is a critical part of building competitive advantage. Analysis of historical data allows for drawing the right conclusions, and guarantees improved quality of the final product. Effective enterprise management system, and technological knowledge management system in particular, is an indispensable tool for any innovative foundry. Simulation Process & Data Management is a new, dynamically-developing scientific field. Also in the foundry industry it is a very important step towards the management of casting simulation results.
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Müller, Heinz. "THE SELECTION OF BUILDING PROCESS ACCORDING TO THE INNER COMPARATIVE SUBSTANTIATION CONTROL/BAUBETRIEBLICHE VERFAHRENSAUSWAHL MIT VERGLEICHSINTERNEN PLAUSIBILITÄTSKONTROLLEN." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 3, no. 12 (December 31, 1997): 74–81. http://dx.doi.org/10.3846/13921525.1997.10531370.
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Generally speaking, many technological processes are suitable for implementing definite building tasks, though only one alternative from many other possibilities is preferred. Therefore, the main task of every building enterprise is to find an optimal variant and try to implement it when making preparations for performing building processes. Alternative variants are variants which serve the same purpose and in essence should be able to implement adequate building tasks. A complex comparison of variants may be carried out by many methods. For a practical comparison of processes at a building undertaking, a method is suggested which integrates, in its comparison logaritm, the substantiation control, preserving at the same time logic correctness of separate comparison steps. The selection criteria are obtained depending on particular building tasks and legal aspects. Information faults pertaining to data may cause mistakes when comparing variants. Determination of variant rank sequence is based on the principle of deductive logic according to which a complex problem should be decomposed into partial problems till they become transparent and then can be solved. A successful building process is evaluated as being of 1 rank. The results of calculation are presented in diagrams which make the visual assessment much easier.
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Chen, Jian Bo, Pei Xin Li, Yan Mu, Hong Xiao Ma, and Xiao Lin Ren. "Preparation and Performance of Fly Ash Brick." Advanced Materials Research 1081 (December 2014): 322–26. http://dx.doi.org/10.4028/www.scientific.net/amr.1081.322.
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This paper uses the industrialization production device to study the factors that affecting the performance of fly ash products. Through adopting the appropriate material ratio and technological parameters, the load-bearing standard bricks with large admixing amount of fly ash were successful developed. The mixing amount of fly ash has reached about 50%, and the bricks were got the production application in the industrialized device which annual output is 400 million pieces. The product performances are referred to the requirements specified in JC 239-2001, and the compressive strength reach 16.6 MPa and the breaking strength reach 3.8 MPa. The product has the low thermal conductivity and qualified freeze-thaw resistance, dry shrinkage. The products were got widespread popularization and application in the building construction of Qinghai-Tibet Plateau.
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Mityagin, Sergey D. "Technological Optimization of Town-Planning Activity." Scientific journal “ACADEMIA. ARCHITECTURE AND CONSTRUCTION”, no. 1 (March 22, 2018): 67–72. http://dx.doi.org/10.22337/2077-9038-2018-1-67-72.
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The town-planning code of the Russian Federation allows to prepare the documents regulating design and planning activity independently by each subject of the town-planning relations. At the same time violations in the form of mismatch of information contents between separate town-planning documents are possible. These defects of a legal design can be eliminated by special federal instructive-methodological document preparation which is constructed on the basis of optimization of technological model of town-planning design activity which assumes in particular:1) strict execution of functional priorities establishment tasks of the Russian Federation Town-planning code in territories assignment at the Russian Federation territorial planning schemes level functional zones (land categories) dislocation definition in territorial planning schemes of the territorial subjects of the Russian Federation municipal districts and also in city district master plan drafts city and rural settlements2) town-planning zoning works reference to the level of territory planning documents preparation where the territorial zones of placement of capital construction projects would be established in the borders of planning structure elements of the settlement3) land plots surveying in the borders of territorial zones perform on the basis of the complex of conciliation procedures and public hearings of volume spatial decisions (sketches) of building undergoneThe offered town-planning design actions organization technological model is directed to planning solutions consecutive specification from different level territorial planning schemes, including city district master plans, city and rural settlements to theland plot planning organization schemes of the capital construction projects, i.e. from an investment plan to project realization.
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Golovko, Aleksandr, and Sergey Petrov. "Definition of the initial information for selecting the cutting tool for automated production preparation." MATEC Web of Conferences 224 (2018): 01103. http://dx.doi.org/10.1051/matecconf/201822401103.
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The certain supply of cutting tools is formed on the machine-building enterprises of the parts group related to tooling as a result of application of technological processes. At preproduction of new pats group it is necessary to be determined with the choice of tool: to project special or to apply already present. In second case it is required to find from a database a suitable tool on totality of preset parameter. The large variety of constructions and methods of application of cutting tools hampers such choice. The article presents the initial information for selecting a cutting tool for automated production preparation.
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Kusyi, Yaroslav, Andrij Kuk, Volodymyr Topilnytskyy, Dariya Rebot, and Mykhailo Bojko. "Influence of constructive and geometric parameters of the end cutters on the microprofile characteristics of casting surfaces." Technology audit and production reserves 2, no. 1(58) (April 30, 2021): 6–10. http://dx.doi.org/10.15587/2706-5448.2021.229180.
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The object of research is the technological route of machining of an aluminum alloy casting. The research carried out is based on the basic principles of functionally oriented design of technological processes in the manufacture of products. The main hypothesis of the study is the need for a systematic approach to study the effect of cutting modes of a certain method of machining on the provision of quality parameters in the technological system (machine – device – tool – workpiece). In traditional automated systems for technological preparation of production, an object-oriented principle of designing technological processes is implemented, which provides for the step-by-step implementation of interrelated stages based on a prototyping algorithm without a functional analysis of the operational characteristics of the product. The processing of functional, mating surfaces, ensuring that the product performs its service purpose, must be implemented according to the principle of function-oriented design (FODT). A characteristic feature of FOT is the technological provision of effective operational characteristics of the product in compliance with the parameters of accuracy and quality of the surface layer of the product intended by the designer. The paper deals with the influence of the structural and geometric parameters of end mills manufactured by Sandvick (Sandviken, Sweden) on the formation of microrelief parameters of an aluminum alloy casting profile during machining on a numerically controlled vertical milling center (CNC) HAAS MINIMILL (USA). An atypical option for the FOT principle of the technological route of machining the surfaces of workpieces of machine-building products has been applied. Its feature is ignoring the requirements of the manufacturer of metal-cutting tools, which is an important element of the technological system (machine – tool – device – workpiece), regarding its use for a particular machine tool at a certain technological transition of machining. The performance criteria were the height and step characteristics of the microrelief of the profile of the surface layer of the workpiece being processed. The operating conditions of machine-building products have been determined, which make it possible to establish, in case of deviation from the manufacturer's recommendations at the stage of technological preparation of production, the rational elements of a certain technological system: a metal-cutting machine – a device – a metal-cutting tool – a workpiece and processing modes to ensure the necessary operational characteristics.
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Kuchkarova, Dilarom, and Dilnoza Achilova. "Geometric issues of transforming a topographic surface into a design project." E3S Web of Conferences 264 (2021): 03029. http://dx.doi.org/10.1051/e3sconf/202126403029.
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Natural relief adjustment for functional purpose - the task of vertical planning - is one of the main complexes of engineering preparation problems of urban areas, industrial sites, reclamation of irrigated land. Numerous methods of designing vertical levelling are aimed at building algorithms that would allow us to obtain an optimal solution in an automated mode. In the set of problems of engineering preparation of urban areas and industrial sites, vertical planning is defined as: a set of engineering and aesthetic measures aimed at adapting the natural relief for the needs of development and subsequent operation, taking into account the functional characteristics of the site a part of engineering preparation, which consists in providing a height arrangement of buildings and structures necessary for the best technological connection between individual objects, as well as a quick collection of atmospheric waters Reclamation of irrigated lands has specific requirements to design surface - maximum preservation of fertile layer, the satisfaction of cultivation technology conditions of different crops and irrigation technique. The main disadvantage of all known methods of designing vertical levelling is a cumbersome solution - a very labor-intensive way of successive approximation to an acceptable solution requires a large expenditure of computer time and subsequent manual revision. The article proposes one of the approaches to the design of levelling using geometric estimates.
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Bilous, Lubomyr. "THE ROLE OF INTRA-FIRM TRAINING TO ACHIEVE A STRATEGY FOR THE DEVELOPMENT OF PROFESSIONAL COMPETENCIES BY PRODUCTION STAFF OF FOOD INDUSTRY ENTERPRISES." Economic Analysis, no. 30(1, Part 2) (2020): 187–97. http://dx.doi.org/10.35774/econa2020.01.02.187.
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A feature of the modern development of the food industry is the continuous technical and technological innovations, organizational innovations. In this regard, the strategy of advanced training of staff throughout the work is a prerequisite for the functioning of each enterprise in this industry, the basis for building a system of intra-firm training. The problem of developing the competence of production staff is not so much in training their methods of operation in the normal operation of modern equipment, but in advanced preparation for successful, motivated, conscious, responsible and operational actions in different situations prospects of continuous modernization of equipment for bakeries.
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Mirzakhanova, Aida, Muhammad Khalil, Natalya Galaeva, and Ruben Kazaryan. "Organizational and technological solutions of multicriteria quality analysis in high-rise construction." E3S Web of Conferences 164 (2020): 08011. http://dx.doi.org/10.1051/e3sconf/202016408011.
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Features of renovation of built-up areas are considered. The main difficulties in carrying out the renovation process are identified. The concept of the constraint factor of the building is defined. Methods. A method for analyzing and assessing constraints for selecting optimal organizational and technical solutions for the renovation of territories is proposed. Results. An analysis algorithm is proposed, based on the consideration of the constraint factor as an array of actions of individual “objects of influence” on the corresponding “subjects of influence”. Conclusion. Сonducting such an analysis will provide the most effective and optimal organizational and technological solutions reflected in the relevant sections of the renovation project in high-rise construction (development of a construction master plan, preparation of calendar and network work schedules). The implemented rational version of the design solution ensured the reduction of the prime cost and the reduction of the terms of the preparatory works for the renovation of housing construction projects taking into account seismic uncertainty. Renovation is one of the varieties of this reconstruction of high rise construction.
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de Bruijn, F., C. Kamp, D. Eddy, and J. E. Kools. "“Jan-Lagrand” water treatment works: UF/RO from technological novelty to full size application." Water Supply 2, no. 5-6 (December 1, 2002): 285–91. http://dx.doi.org/10.2166/ws.2002.0181.
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In Heemskerk the world's largest dual membrane municipal water treatment works ( WTW) “Jan-Lagrand” (55 Ml/d or 2,250 m3/h or approximately 15 MGD) was commissioned at the end of 1999. At Heemskerk WTW, pretreated surface water is subsequently treated by ultrafiltration (UF) and reverse osmosis (RO). The RO permeate is directly blended into drinking water without chemical disinfection. Before Heemskerk the dual membrane concept had not been considered on this scale, and during project preparation numerous developments and innovations needed to be flexibly accommodated into the ongoing design. Conceptual system development, pilot research and design and engineering were successfully conducted “in parallel”. This paper deals with the innovations that were materialized in Heemskerk, e.g. UF-membrane pretreatment, on line membrane integrity testing (UF and RO) for disinfection approval, and a dual floor building concept for membrane installations. This paper explains how these innovations could be accommodated into an ongoing design, while innovative testing was still proceeding.
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Barenscott, Dorothy. "Articulating Identity through the Technological Rearticulation of Space: The Hungarian Millennial Exhibition as World’s Fair and the Disordering of Fin-de-Siecle Budapest." Slavic Review 69, no. 3 (2010): 571–90. http://dx.doi.org/10.1017/s0037677900012158.
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In this article, Dorothy Barenscott examines die dynamic interplay between modern urban development and world exhibition in the social imaginary of nation and empire, suggesting how Hungary's identity as imperial partner with Austria was increasingly tied to the multisensory experience of, and participation in, the growth of Budapest as the empire's second capital during preparations for Budapest's 1896 Millennial Exhibition. Whether a real or only perceived “world's fair,” this exhibition provided the perfect vehicle to further the goal of modern urban expansion and define what it would mean to be “Hungarian” to an international as well as a regional public. Guided by the Millennial Exhibition, a constellation of interconnected building projects arose within the urban fabric of Budapest: the construction and refinement of Andrássy Avenue, the Hungarian Parliament building, and Budapest's underground subway.
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Hutsich, Katsiaryna A. "Comprehensive hygienic assessment of the dust factor in the manufacturing heat-insulating building products from man-made mineral fibers." Russian Journal of Occupational Health and Industrial Ecology 61, no. 2 (March 15, 2021): 77–83. http://dx.doi.org/10.31089/1026-9428-2021-61-2-77-83.
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Introduction. Air pollution with aerosols of mineral fibers in the manufacturing heat-insulating building products is the primary harmful production factor that can increase the risks of developing several diseases of various organs and systems. It determines the relevance of conducting comprehensive studies of the dust factor in such industries, assessing the relationship between mass measurements and fibre counts, the development of targeted preventive measures, considering the features of the technological process. The study aims to conduct comprehensive hygienic studies of the dust factor in the manufacturing heat-insulating building products from basalt fiber and determine the morphological features of dust at different stages of the technological process, the presence of a relationship between mass measurements and fibre counts. Materials and methods. The studies were carried out based on manufacturing heat-insulating building products from basalt fiber. To assess the dust factor, the authors carried out the analysis of mass measurements of dust and fibre counts using phase-contrast light microscopy. The authors used linear regression analysis to study the dependence of the mass measurements and fibre counts. Results. The mass measurements of dust in the working area don't exceed hygienic standards and ranges from 0.51 mg/m3 to 1.19 mg/m3, and the fibre counts are from 0.45 f/cm3 to 1.23 f/cm3. The morphological analysis of the dust samples' preparations collected on filters from the air of the working area made it possible to reveal the characteristic features of the composition of the dust at various stages of the technological process. The study confirmed a positive correlation of weak strength between fibre counts and the mass measurements. The resulting dependence model is statistically significant, but the coefficient of determination of this model (R2) is 0.043. Fibre counts in the first phase of the production cycle are significantly higher than in the second. Simultaneously, the mass measurements do not have significant differences in different phases of the production cycle. Conclusions. There is a positive correlation of weak strength between fibre counts and mass measurements, but the resulting linear regression model can explain only 4.3% of the variation of fibre counts based on the mass measurements, which does not allow using this model for converting of the results of measurements of several particles. Microscopy of dust preparations makes it possible to determine the morphological picture characteristic of various stages of the technological process. Fibre counts depend on the phase of the production cycle. The data obtained can be used to design air purification systems and operating modes at various stages of the technological process.
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Dolgov, Vitalii A., Petr A. Nikishechkin, Aleksandr A. Leonov, Sergey S. Ivashin, and Nikita V. Dolgov. "Mathematical Modeling of Production Processes of Discrete Machine-Building Enterprises Based on the Interaction of Simulation Systems and Operational Planning Systems." EPJ Web of Conferences 248 (2021): 04014. http://dx.doi.org/10.1051/epjconf/202124804014.
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Analysis of production systems (PS) of discrete multi-nomenclature machine-building enterprises is a complex task, its solution is necessary to support decision-making during technical re-equipment, modernization or technological preparation of production. The paper shows a concept of joint use of operational scheduling systems and simulation modeling systems to improve the efficiency and adequacy of PS analysis. The problem of determining the deviation of the planned state of the PS from the simulated state and evaluating the level of stability and stability of the PS behaviour on its basis is considered. It is revealed that the proposed approach allows us to more adequately determine the timing of the production program, assess the stability of the PS behaviour when using various planning logics and algorithms, and choose the best one for subsequent use in a real PS.
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Kirakevych, Iryna, Myroslav Sanytsky, and Igor Margal. "Self-Сompacting Сoncretes, which hardening at different temperature conditions." Theory and Building Practice 2020, no. 2 (November 20, 2020): 107–12. http://dx.doi.org/10.23939/jtbp2020.02.107.
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In the article the features of reinforced concrete hardening at different temperature conditions and the current issues of preparation technology of Self-Сompacting Сoncretes (SCC) on the basis of superplasticized cementitious systems, combining knowledge of structure and modifying Portland cement compositions "Portland cement – active mineral additives – microfiller – superplasticizer – accelerator of hardening" to search for rational making provision of technical and building properties of concrete in the changing factors of its composition, technology and exploitation are shown. The physico-chemical peculіarities of hydration and hardening processes of superplasticized cementitious systems were established. The problem of obtaining Self-Compacting mixtures and Rapid-Hardening Concretes on their basis by the direct structure formation of cementitious matrix was solves. The optimization of Self-Compacting Concretes composition on the base of superplasticized cementitious systems with high early strength was carried out. The quality parameters of developed concretes were investigated and the effectiveness of their using in different temperature conditions was shown. The results of the studies found that the use of the superplasticized cementitious systems allows to influence on technological properties and kinetics of structure formation and create concrete structure with improved construction and technical properties at a different temperature conditions. Technological solutions designing of superplasticized cementitious systems that solves the problem of obtaining the Self-Сompacting Сoncretes (SCC) on their basis with using non-vibration technology are established. This creates an opportunity allows to solve the problem of obtaining for enabling early loading, reducing the production cycle, increasing turnover and formwork acceleration of monolithic buildings and structures at different temperature conditions.
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Bakhmat, Nataliia, Vladyslava Liubarets, Maryna Bilynska, Nataliia Ridei, and Spitsyna Anhelina. "Digital transformation of preparation of the future." New Trends and Issues Proceedings on Humanities and Social Sciences 7, no. 3 (December 4, 2020): 242–51. http://dx.doi.org/10.18844/prosoc.v7i3.5258.
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The article is devoted to the current problem of today, which has acquired special significance in the context of building an information society. It is shown that Ukraine recognises the value of progress in the digitalisation of economic transformations. Creating a digital infrastructure of the economic sector requires the formation of future professionals’ digital competence in the educational space. Perspectives of digital technology are defined as the search of content according to interests; meeting the individual needs of pace and the level of professional growth requirements for the modern specialist; the constant modernisation of the style and forms of economic culture; and the connection of economic and educational spheres. It is concluded that Ukraine has all the conditions for transformation processes of digitalisation of economic professional education, which will bring the economy to a high technological level of development. Digital dual vocational education, with one of the most important factors of economic growth and formation of a new competent and competitive professional in the economic sector, is defined. The subjects of digital interaction in the conditions of dual professional education of future specialists of the economic branch are identified and characterised. Further research considering the expediency of educational and economic clusters of professional training of future experts of the economic branch is also defined.
Keywords: Transformational reformations, digitalisation, dual professional education, digital competence, future economic specialist, business, HEI.
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Karunskyi, O., G. I. Kotets, and M. M. Madani. "CHEMICAL COMPOSITION AND NUTRITIONAL VALUE OF THE NEW CITRUS POMACE FEED ADDITIVE." Grain Products and Mixed Fodder’s 20, no. 4 (June 16, 2021): 33–37. http://dx.doi.org/10.15673/gpmf.v20i4.2018.
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The materials of the article present data on research on the chemical, mineral-vitamin composition and nutritional value of a new feed additive from citrus pomace. The article presents the results of research on the technological line of granulation of citrus waste, established the optimal composition for granulation of citrus feed additives: sunflower meal - 20%, molasses - 5% and 75% of citrus fruits.Their chemical composition was studied, the gross content of proteins, fats, assimilated carbohydrates, including simple sugars, was determined, and the efficiency of use in the diets of farm animals was determined. The positive influence of citrus waste granulation technology has been established, which allows to obtain high-quality granules. Chemical analysis of citrus granules showed that 100 g contains: protein - 6.15 g, fat - 0.99 g, carbohydrates - 21.8 g, of which simple sugars 14 g, the energy value of this feed additive - Kcal (kJ) - 120.7 (505.7).The possibility of preparation of feed additives in the form of granules is revealed, which allows to avoid selfsorting of components and overdose of microelements and to improve the consumption of feed ingredients. The ability to prepare feed additives in the form of granules avoids self-sorting of components and overdose of micronutrients and improve the consumption of feed ingredients. The results of zootechnical researches, structure and nutritional value of average daily rations with use of citrus pomace are resulted.It was found that the introduction into the diet of dairy cows feed additives from citrus pomace during stable lactation increases the average daily expectations by 1.8 kg or 15.5%, feed costs for milk production containing 4 fat were 0.97-0, 98 feed units. When using a feed additive from citrus pomace, the nutritional value of the diet is improved due to the ratio of sugar - protein (0.62: 1 vs. 0.8: 1.2).
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Victoria Martínez-Díaz, M., and Giovanni Bottari. "Supramolecular organization of phthalocyanines: from solution to surface." Journal of Porphyrins and Phthalocyanines 13, no. 04n05 (April 2009): 471–80. http://dx.doi.org/10.1142/s1088424609000747.
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Phthalocyanines are an interesting class of aromatic macrocycles which possess exciting electrical, redox and photophysical properties that make them ideal building blocks for applications in different technological fields. However, the incorporation of phthalocyanines into devices is often tied to the possibility of organizing these macrocycles into arrays using supramolecular interactions. To date, several supramolecular motifs such as hydrogen-bonding, donor-acceptor or metal-ligand interactions have been used to promote the phthalocyanines' organization in solution. Furthermore, such weak, non-covalent interactions have also been widely employed to foster the organization of these macrocycles in condensed phases such as liquid-crystals or thin films. This micro-review provides a brief overview of the contribution made by some research groups in Spain towards the preparation of organized phthalocyanine-based supramolecular systems.
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Kaderov, Khaidar, Sergey Kireev, Marina Korchagina, and Aleksey Lebedev. "Determination of technological parameters and tool for flanging holes from sheet blanks." E3S Web of Conferences 164 (2020): 14019. http://dx.doi.org/10.1051/e3sconf/202016414019.
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In the article the parameters of shaping operations of internal axisymmetric cylindrical flanging are considered. The article is written to improve the quality and speed of flanging round holes development from sheet blanks and tooling construction by increasing the accuracy of hole diameter calculation for flanging in the automated mode of building three-dimensional models of workpiece and a flanged product. Given formulas increase the accuracy of hole diameter calculation for flanging, taking into account the deformed condition of the sheet blank. The accuracy of the hole diameter calculation for flanging according to the given formulas is determined by comparing the mass of the workpiece with the mass of the flanged part. CAD system algorithm for automated construction of the flanged parts sketch and determination of technological parameters is implemented. The parameterized scheme of a typical construction of a flanging stamp is presented. The constructed schemes allow making changes in their parameters and providing automatic representation of calculation results and also their correct graphic interpretation. Discussion of the article results allows drawing conclusions about correctness of the given mathematical model and its applicability for the automated construction of three-dimensional models of the flanged details that will allow simplifying technological development and constructed documentation with simultaneous increase of their accuracy and reducing costs of production preparation.
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Macek, Ivo. "The Biggest Museum Project in Czech History: The New Permanent Natural History Exhibitions in the National Museum Prague." Biodiversity Information Science and Standards 2 (June 13, 2018): e26375. http://dx.doi.org/10.3897/biss.2.26375.
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In 2018 the National Museum Prague (NMP) is celebrating its 200th anniversary. Today the Museum is facing its most valuable development: brand new permanent exhibitions. Our monumental historic building was constructed in 1891 in the heart of Prague. After more than one hundred years we had to close the building and remove all exhibitions which were older than 40 years. The building has about 8,000m2 and is divided into two parts. One belongs to our Natural History Museum (NHM) collections with Zoology, Palaeontology, Mineralogy, Botany and Mycology exhibitions. Our new natural history galleries will open in autumn 2019. Housed all on one floor, the galleries will be full of animals like invertebrates, fishes, reptiles, birds and mammals. The second floor will focus on palaeontology spanning more than 500 million years of evolution covering the geographical area of the modern Czech Republic. At the beginning we had to ask ourselves a few simple questions. How do we develop permanent exhibitions that will last for decades? Is excluding modern technology the right thing to do? Should we focus on a more informative/education style or should the interpretation be more populist? And what about the display cases? Should we use old repaired ones or modern cases? It would be great to have answers to all these questions but we still have to deal with the vision and constraints of our curators, collections, budget, legislation, technology and construction of the building. The project has no similar equivalent in the history of the Czech Republic so it was an extraordinary challenge to create our own process of developments with ongoing improvements. Through these developments we have formed new cooperation with technological partners and the creative industries. We are defining a new modern approach to the development and preparation of exhibitions in the Czech Republic. Now that we have reached the half way point towards our vision, it is a good time to report on progress.
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KRASHENINNIKOV, Maxim A. "STUDY OF THE INFLUENCE OF CALCIUM OXIDES IN LIGHT-FUSION RAW MATERIALS ON THE PROPERTIES OF A CERAMIC PRODUCT." Urban construction and architecture 11, no. 2 (December 15, 2021): 56–61. http://dx.doi.org/10.17673/vestnik.2021.02.9.
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One of the main problems of modern building ceramics based on low-melting raw materials is the increased CaO content in the charge. This deviation from the normative values of the technological parameters of production leads to defects - underburning / overburning, quirks, looseness, low strength. Firing mode, molding parameters, addition of additives, preparation of raw materials are the factors for solving this problem. The Alekseevsk low-melting clay and the Yarmysh (Uzbekistan) loess-like loam were investigated, the destruction of the sample structure upon absorption of moisture from the CaO air was graphically modeled, the diagrams of the dependence of the fi ring temperature on the compressive strength were plott ed, the infl uence of molding and the fi neness of grinding of raw materials on the compressive strength and the nature of the formation of ceramic defects was derived.
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Dubrovina, Natalya A. "Innovative technologies in machinery." Vestnik of Samara University. Economics and Management 12, no. 1 (April 20, 2021): 108–15. http://dx.doi.org/10.18287/2542-0461-2021-12-1-108-115.
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The pace of innovative development of the machine-building complex and its structural changes are largely determined by the processes of automation, digitalization, improvement of machinery and equipment. Thepresented article discusses innovative technologies in mechanical engineering. The main trends in the innovative development of industrial production are: development of high-tech foreign economic activity, formation of an innovative space, digitalization of economy, creation of a unified database of innovative developments, formation of a new scientific base working on solving urgent problems, creation of markets for innovative products. It is determined that at all stages of the product life cycle, digital technologies are included, such as virtual reality, additive manufacturing, the industrial Internet of things, and a virtual trading platform. The definition of innovative and technological development of the machine-building complex is given. Despite the fact that innovative technologies ensure efficiency, agility and cost-effectiveness of production, in Russia the digital transformation process is in its infancy and is a promising necessity for the development of all industrial production. The transition to digital production technologies is associated with the solution of a number of problems. Such as modernization of the material and technical base, training and advanced training of personnel, preparation of the legislative framework, standardization, certification of innovative digital production technologies, search for investment resources.
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Zabelina, Olga. "Application of non-destructive methods of control within the inspection of concrete structures." E3S Web of Conferences 258 (2021): 09007. http://dx.doi.org/10.1051/e3sconf/202125809007.
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This paper discusses the main non-destructive quality control methods that are used in the inspection of both under construction and already existing concrete structures. Purpose of the work: to conduct a comparative analysis of non-destructive testing methods, to consider a practical example of their application in the survey of a building being reconstructed, to identify the essential points of the organization of non-destructive quality control, which must be taken into account when developing a site work execution program. Materials and methods: the application of methods of non-destructive testing, separation with spalling and the ultrasonic method of surface sounding, is considered in detail. Results: the results of the inspection of structures by the methods separation with spalling and the ultrasonic method of surface sounding are presented, the test conditions, basic requirements for correct data interpretation, and the necessary calculations are given. Recommendations are given for planning the quality control of concrete structures at the stage of organizational and technological preparation of construction. Conclusions: non-destructive quality control finds its application both in the construction of new facilities and in the inspection of existing buildings. The choice of the survey method is made at the stage of development of a site work execution program, while it is necessary to take into account the features and scope of application of a particular method, probable measurement error, it is also possible to use several methods in combination.
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Obodovich, O. M., O. M. Nedbailo, O. G. Chernyshyn, and A. E. Nedbailo. "Intensification of loosening of asbestos fibers by means of hydromechanical processing." Кераміка: наука і життя, no. 1(50) (March 17, 2021): 26–29. http://dx.doi.org/10.26909/csl.1.2021.4.
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Acceptance of high-quality aqueous suspensions based on chrysotile asbestos is an urgent technical task in a number of industries. Asbestos-cement mortar is used as an asbestos-cement crust for insulation of walls and other building surfaces, due to this composition of the treated surfaces perfectly retain heat, resistant to moisture, and most importantly - asbestos fibers contribute to the smoothness of the surface and crack is not formed. No less popular is the use of asbestos-cement mortar with a high content of asbestos in the insulation of ventilation ducts and pipelines. This composition of asbestos-cement mortar is used to strengthen the joints of asbestos-cement pipes, as well as as a filler in the laying of cast iron pipes to give the joints additional elasticity.
Asbestos-cement mortar has plasticity, resistance to stretching and reinforcement of asbestos, as well as strength and versatility in the use of cement. Due to these properties, asbestos and cement perfectly adhere to each other to obtain a durable, strong, frost-resistant, virtually waterproof and fire-resistant building material.
The result of the microscopic examination is reason to believe that from the technological process of production of slate can be removed electromechanical mixer for the preparation of a solution of asbestos + water + portland cement. In this case, given the fact of continued loosening of asbestos in the preparation of the mold mixture of asbestos + water + portland cement, it will be sufficient to ensure the degree of loosening of asbestos in the ripper at the minimum required level (for example, not more than 85%). It is assumed to obtain a mold mixture with a high degree of homogeneity of the components with reduced costs of Portland cement due to its physico-chemical activation by hydraulic fluxes.
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Istomin, A. B., I. N. Gemba, and I. V. Lizunov. "Multi-tool processing in the conditions of complex automation of technical processes." Glavnyj mekhanik (Chief Mechanic), no. 7 (June 11, 2021): 24–30. http://dx.doi.org/10.33920/pro-2-2107-02.
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The article analyzes the influence of errors from elastic deformations on the accuracy of processing in the conditions of complex automation. Different variants of multi-tool processing are considered: parallel processing, when different tools are alternately, one after the other, involved in the processing of the workpiece surfaces, and parallel-sequential processing, when different surfaces of the workpiece are processed simultaneously by several tools located in the working position. Design automation in machine-building production is part of the complex problem of automation of engineering work in all areas of the functioning of a modern production system. Therefore, when creating design automation systems, its connections in the general complex of automation of engineering activities in the production cycle should be taken into account. In general, the automation of the engineer's work is task planning, design and technological preparation of production, and management of the production system. The choice of favorable cutting modes for multi-tool processing is a difficult task, since, along with taking into account the features of each individual tool, it is necessary to make a general analysis of the entire setup, i.e. the set of tools used on the machine, and the distribution of processing transitions among them. Machine-building production is currently characterized by the desire to constantly update the range of released products. The requirements of multi-product manufacture can be met under the condition of its automation, which covers both the automation of production preparation and management. The article provides recommendations for reducing the error from elastic deformations in the conditions of complex automation. English version ofthe article is available at URL: https://panor.ru/articles/multi-tool-machining-in-complex-process-automation/65225.html
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Gaido, A. N., A. G. Pogoda, L. M. Kolchedantsev, and D. V. Vershinin. "REMOTE CONTROL SYSTEM FOR TECHNOLOGICAL PARAMETERS OF PRESSED PILES." Construction and Geotechnics 11, no. 3 (December 15, 2020): 18–28. http://dx.doi.org/10.15593/2224-9826/2020.3.02.
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The article discusses the results of research in the field of developing a system that in real time allows you to display and remotely transmit the main technological parameters of indentation of factory-made piles (values of indentation forces, number and depth of immersed piles, their displacement relative to the design position). Unlike existing analogues, it allows you to additionally guide the installation of the indentation on the dive points of piles without instrumental removal of their position on the ground. This is done by orienting the installation through a global satellite navigation system. And the position of the piles is set automatically by calculating their coordinates obtained from the project in dfx format, previously entered into the memory of the on-board computer. The constituent elements of such a system are presented, as well as the interface for setting up and displaying technological parameters. The main technological indicators of the process in remote mode can be displayed on the display of any mobile device. It is shown that the cost of such a system is 8 % of the cost of the installation of the indentation of piles. It has been established that it pays off by reducing costs with the subsequent strengthening of grillage structures. These additional works are eliminated due to the prompt elimination of identified deviations, as well as improving the accuracy of installation of piles in the design position. The article presents an algorithm for performing work when setting up the system, receiving and transmitting relevant information. It is shown which participants at different stages will be involved in these processes. In conclusion, various performance indicators for the implementation of such a system are presented. Based on the results of the timing, it is proved that its use allows to reduce the duration and labor costs of both the production of works and the preparation of executive documentation. In addition, the information obtained can be integrated into the building information model, which will allow analyzing the operational reliability indicators of pile foundations.
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Kantová, Radka, and Vít Motyčka. "Construction Site Noise and its Influence on Protected Area of the Existing Buildings." Advanced Materials Research 1041 (October 2014): 419–23. http://dx.doi.org/10.4028/www.scientific.net/amr.1041.419.
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The article addresses the problem of noise from the perspective of protected building space near the construction. If they are near a building already populated, the residents should not be exposed to elevated noise burden, and according to Government Regulation No. 272/2011 of 24 August 2011 on health protection before adverse effects of noise and vibrations, which are set noise limits. In the process optimization production planning is therefore necessary to address the areas of in-situ noise, its creation, modeling, design methodologies to assess the overall noise at the site. The Article analyzed the issue introduction of new approaches when optimizing for the site and the necessity aspects of noise pollution site in construction technological preparations for the construction. The article defines in detail the sources of noise during construction, dealing with modeling of site noise sources and the value of the protected space structures. It presents examples of noise studies, where captured effect of noise on the nearest places protected sites and residential areas. Presents the methodology of work with the values of the inputs and outputs when working with software support.
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Skorobogatov, A. S., and V. V. Kobzev. "ECONOMIC AND MATHEMATICAL MODEL OF SCENARIOS FOR THE SELECTION OF INVESTMENT PROJECTS AT THE STAGE OF DESIGN AND TECHNOLOGICAL PREPARATION OF PRODUCTION OF A MACHINE-BUILDING ENTERPRISE." Vestnik Volzhskogo universiteta im. V.N. Tatishcheva 2, no. 3 (2021): 97–106. http://dx.doi.org/10.51965/2076-7919_2021_2_3_97.
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Sokolnikov, Vladimir V. "Mathematical formulation of the problem of modeling the flow organization of works in construction." Vestnik MGSU, no. 3 (March 2020): 443–51. http://dx.doi.org/10.22227/1997-0935.2020.3.443-451.
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Introduction. Improving the efficiency of research in the field of оrganisation of construction requires the development of a deterministic model of the flow organization of work. Development of the specified model will allow to improve methods of development of POC and PPR providing organizational and technological reliability of construction both at the stage of project preparation, and in the main period of construction. The purpose of this article is a mathematical formulation of the problem of modeling the flow organization of construction works. The object of the study is the parameters of a deterministic mathematical model of the flow organization of works performed in a given period of time (day) in the allocated part of the construction volume of the structure.
Materials and methods. The hypothesis of the proposed method of modeling the process of building construction is that the change (increment) of the construction readiness of the structure (change in the “up” direction of mass, shape and position of the assembled structures) can be expressed, according to the representations of mathematical physics, through the speed of movement of the masses of material objects (construction flow) arising as a result of the application of forces (technological flow) acting for a certain period of time, in the aggregate, forming a physical environment “flow of flow in time and space” masses of materials from the initial (stored) position in the finished construction products in the design marks. The mass of elements, their distribution in space, the mass of the structure in parts and in General (collection of loads) is determined at the design stage, including according to BIM models. Analysis from this standpoint the equations of the mechanics of fields of force distribution applied to the problem of the study organization of the “flow” of work on the private front will assess the prospects for the proposed hypotheses for the construction of approximate deterministic models of organization of construction, based on concepts of physics.
Results. Mathematical model of production organization of construction works on the basis of physical representations of technological processes as a “stream flowing through time and space” of the masses of the materials from the initial (stored) position in finished building products in the project level under the influence of applied forces explicitly establishes the dependence of the change in the value of construction completion of construction parameters of the process flow. To obtain numerical values of boundary conditions for the construction readiness function, the development of algorithms for processing BIM data arrays will be required. To determine the initial conditions of the parameters of the technological flow vector that satisfy the dimension obtained in the article, it will be necessary to develop special algorithms and their software.
Conclusions. Using the proposed physical model of flow of organization work (model building flow) in the perspective automated systems of designing of construction will allow in the period of the CMP to analyze their progress based on a variant of the estimated forecasts of changes in construction readiness of the facility for the monitoring period of time and under different set parameters of the vector — potential of the process flow, which in turn, ensures organizational — technological reliability of construction by technical means of timely and reliable operational management.
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Devaney, Laura, and Anna R. Davies. "Disrupting household food consumption through experimental HomeLabs: Outcomes, connections, contexts." Journal of Consumer Culture 17, no. 3 (February 19, 2016): 823–44. http://dx.doi.org/10.1177/1469540516631153.
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This article explores the implications of conceptualising, designing and implementing experimental sites seeking to support more sustainable home-based eating practices, or HomeLabs for brevity. Building on earlier phases of practice-oriented participatory backcasting and transition framework construction, the HomeLabs involved collaboration with public, private and civil society sectors and with the members of participating households. These collaborations identified a suite of supportive socio-technological, informational and governance interventions that mimicked, as far as possible, the characteristics of promising practices for sustainable eating developed through backcasting and transition planning. The implemented interventions enabled householders to question, disassemble and reconfigure their eating practices onto more sustainable pathways across the integrated practices of food acquisition, storage, preparation and waste management. This process generated manifold insights into household eating practices, and this article focuses specifically on key outcomes of the HomeLabs, and the significance of social context, social relations and micropolitics of everyday life in shaping those outcomes. In particular, the HomeLabs findings reinforce calls to connect, combine and align product, regulatory, informational and motivational supports across the interdependent practices of eating (acquisition, storage and preparation and waste recovery) to optimise transitions towards sustainability. Offering a lens to interrogate interventions for sustainable food consumption in the home, this article provides a novel exercise in operationalising social practice theory.