Transfer of Innovative Technologies

About one approach to the problems of impact of fine shells of the S.P. Timoshenko type

2021-07-15T12:31:10+00:00

The method of the outcoming dynamics problems to solve an infinite system of integral equations Volterra of the second kind and the convergence of this solution are well studied. Such approach has been successfully used for cases of the investigation of problems of the impact a hard bodies and an elastic fine shells of the Kirchhoff–Love type on elastic a half-space and a layer. In this paper an attempt is made to solve the plane and the axisymmetric problems of the impact of an elastic fine cylindric and spheric shells of the S.P. Timoshenko type on an elastic half-space using the method of the outcoming dynamics problems to solve an infinite system of integral equations Volterra of the second kind. The discretization using the Gregory methods for numerical integration and Adams for solving the Cauchy problem of the reduced infinite system of Volterra equations of the second kind results in a poorly defined system of linear algebraic equations: as the size of reduction increases the determinant of such a system to aim at infinity. This technique does not allow to solve plane and axisymmetric problems of dynamics for fine shells of the S.P. Timoshenko type and elastic bodies. It is shown that this approach is not acceptable for investigated in this paper the plane and the axisymmetric problems. This shows the limitations of this approach and leads to the feasibility of developing other mathematical approaches and models. It should be noted that to calibrate the computational process of deformation in the elastoplastic formulation at the elastic stage, it is convenient and expedient to use the technique of the outcoming dynamics problems to solve an infinite system of integral equations Volterra of the second kind.

Knowledge-based construction technology development management

2021-07-15T12:56:06+00:00

With the development of construction technologies, changing and modernizing customer requirements, projects become more time-consuming and, accordingly, all design documentation becomes more complicated, while its volume is steadily growing. Designers are forced to process more and more information that precedes and accompanies the process of working on the project. The flow of information 79 continues to come after the commissioning of the facility, as the erected building interacts closely with the environment and other facilities, and we should not forget about the life support of the building, management of internal processes. Accordingly, the probability of errors increases exponentially, and with the increase in the cost of the project increases the cost of errors. In response to the above problems was the concept of information modeling of buildings. Information modeling as an approach to building design involves, above all, the collection, storage and comprehensive processing in the process of designing all the architectural, technological, economic and other information about the building with all its interconnections. languages and dependencies, when the building and everything related to it are considered as a single object.

Simulation of cyber threats for the Internet of Things

2021-07-15T13:03:11+00:00

The modern world is impossible to imagine without information technology. Such technologies are based on the use of computer equipment and means of communication. Both in the real world and in the virtual world, there are crimes called "cybercrimes". Thus, energy facilities, transport systems, financial and banking structures, military and law enforcement agencies, trade, medical and scientific institutions are potential victims of cybercrime, including cyberterrorism. Surveillance cameras, motion sensors, biochips, smart appliances - all these things simplify our daily lives and make our modern life more comfortable. As the number of devices connected to the network grows, so does the number of cyber threats. For example, the smart refrigerator became part of the botnet and began to spread spam, and the smart coffee machine was the cause of the attack on industrial networks with the subsequent infection of computers. The Internet of Things, which in turn is simple and difficult to implement, also has some problems with information security. Sometimes developers, intentionally or unintentionally, leave an undocumented channel, which not only collects information about the use of the device, but also allows you to penetrate into the personal space of the end user. In case of personal data leakage, the purpose of fraudsters is usually personal data: names, postal addresses, e-mail addresses, credit card details or account information. This allows you to order goods online under someone else's name and pay for them using someone else's debit card or debiting a certain account. For the same purpose, phishing can be used, which involves the use of fictitious websites, e-mails or text messages to access personal data.

Analysis of crowdsourcing technology tasks for geoinformation systems in the field of emergency management

2021-07-15T13:11:09+00:00

In recent decades, there has been a trend of increasing the number of emergencies (EM) and the scale of their consequences. This forces humanity to look for new ways to increase the effectiveness of protection of the population and territories from emergencies, to anticipate future threats, risks and dangers, to develop methods for their forecasting and prevention [1]. Emergencies are always accompanied by both material and human losses, so it is very important to make quick and correct decisions to eliminate their consequences. One of the main areas of improving the efficiency, validity and quality of management decisions to prevent and eliminate emergencies is the creation of information systems to support decision-making based on broad and comprehensive automation of resource management processes, which are designed to prevent and eliminate emergencies. Peculiarities of the decision-making process in emergency situations are incomplete and unreliable presentation of information and a small reserve of time for decision-making, and the peculiarity of the functioning of information systems to support decision-making in emergency situations is the need to ensure adequate and effective modeling of different classes NS. The use of modeling in the management of complex objects of different physical nature, operating, as a rule, in conditions of uncertainty, can significantly increase the efficiency of management due to the fact that provides the ability to analyze changes in the properties of the object when choosing control influences. Given the above, information systems to support decision-making can be supplemented by systems for the rapid collection of information about the state of the environment in emergency areas. Today, the management of the acquisition, integration and analysis of large and heterogeneous data obtained from various sources is carried out on the basis of a new paradigm of computing, called crowdsourcing, and one of the options for obtaining information about the state of the environment in emergency zones there are crowdsourcing systems [2]. Such systems will be able to provide up-to-date information on the state of the environment in the emergency zone, on the basis of which the decision support system will be able to provide the necessary management decisions to prevent, reduce or eliminate negative consequences. Thus, the urgent task of supporting management decisions to improve the efficiency and validity of measures to prevent and eliminate emergencies is the creation of information crowdsourcing systems for collecting information about the state of the environment in emergency areas.

Methods of digital protection of graphic images

2021-07-15T13:19:54+00:00

The rapid development, widespread use of information and communication technologies in our time, the ease of transmission and dissemination of information in computer networks entail the need to protect files published in the public domain or documents transmitted over the network. Ensuring reliable transmission and storage of information involves two aspects: first, the prevention of unauthorized access to data and, secondly, ensuring reliable data transmission despite obstacles.

Development of cross-platform applications

2021-07-15T13:26:37+00:00

The work is devoted to the study of cross-platform development of applications, elements of architecture, tools, programming languages and frameworks. During the work, the existing development tools were considered, one framework was studied in detail, which is currently the only one of its kind today. Developed recommendations for creating applications.

Network optoelectronic airspace monitoring system

2021-07-15T14:15:35+00:00

The system is designed for circular or sector monitoring of airspace and allows you to automatically solve a wide range of problems of detection, recognition, identification of all observed highly maneuverable air objects and high-precision tracking of selected air objects (AO): aircraft, helicopters, UAVs, missiles, drones, quadcopters, artillery shells, mines, etc. with display and recording of their exact coordinates and visual images.

Stochastic model and method of optimization of operating modes groups of artesian wells in water supply systems

2021-07-15T15:05:25+00:00

Water supply of large cities is carried out, as a rule, from open reservoirs - lakes, reservoirs, large rivers, ie from sources with significant water reserves. In this case, the water supply scheme includes: pumping stations of the first rise, which take water directly from the water; water treatment system (purification); pumping stations of the second and third rise, pumping clean water over long distances and supplying it to settlements [1]. If the settlement is located in an area where there are no large open water sources, or the geographical location of the settlement allows the use of groundwater, in which case artesian wells are used as a source of water supply. Usually small settlements are supplied with water from artesian wells. Artesian wells are widely used for water supply of villages, industrial water supply, for irrigation (irrigation systems), in the mining industry, to reduce the level of groundwater. The advantage of using artesian wells to supply the population with drinking water is that the water is extracted from great depths and purified using natural filters [2]. Thus, the cost of water treatment is significantly reduced. The disadvantage of using artesian wells is usually low productivity of the well, the strong dependence of water volumes in the well on climatic and weather conditions, depletion of the well as a result of large-scale construction or extraction of natural minerals such as shale gas [3].

Intelligent video analytics of air objects in real time

2021-07-15T17:40:01+00:00

Intelligent video analytics is a technology that combines many accurate analytical and approximate numerical methods of automated analysis of the sequence of images coming from video cameras in real time or from archival recordings. Video analytics is implemented in the form of software (software) for working with video content. The software is based on a wide range of mathematical models and methods that allow video monitoring and data mining without direct human involvement. Currently, in video surveillance systems, there are numerous examples of successfully solved problems using video analytics: - recognition of people and transport in order to count their number; - number recognition (on transport, on banknotes, documents, etc.); - detection of events (movement, movement, intersection of permissible lines and boundaries, stay in areas, throwing objects over the fence, etc.); - detection of dangerous situations (crowds, abandoned objects, fires and smoke, etc.); - recognition of dangerous objects, identification of human faces and their search in databases; - analysis of data without the direct participation of people. Extensive use of IP-cameras allows to adequately reflect the real world in a parallel - digital world, in which strict conditions (laws) of stay and behavior of different subjects of this world can be established. Video analytics, without the intervention of individual entities, allows the most effective monitoring of these conditions by different entities and, in the first stage, to issue emergency messages in case of violation. In the next stages, video analytics provides support for decision-making on measures and tools that should be applied to entities that have violated the conditions of stay and behavior, up to their implementation. Airspace monitoring systems use video cameras with rotation, tilt and zoom functions - PTZ cameras, named for their ability to rotate left and right, tilt up and down, zoom and convert images. Rotary cameras perform these actions thanks to a unique combination of pan, tilt and zoom control functions. The overall ability of the PTZ camera to approximate the image consists of the value of digital and optical zooms. Digital zoom uses electronics to enlarge and reduce the image, while optical zoom uses lens movement. The total value of the camera's zoom capability can be calculated by multiplying the digital and optical zoom values. Video analytics of air objects (SO) automates many functions of airspace monitoring, the main of which are: - detection (detection) of all software located in the controlled area of air space; - tracking of selected software; - software type recognition; - forecasting software trajectories; - detection of events related to the behavior (trajectory) of the software. All functions are performed repeatedly, providing continuous refinement of hypotheses about the number, location, type of software and its intentions in the controlled area of air space. Software recognition means a wide range of tasks - from binary classification of software type target / noise to the identification or verification of software on the basis of characteristics. The use of video analytics software in airspace monitoring systems makes it possible to automatically, without human intervention, in the process of video surveillance to solve problems that are usually only possible for humans. This technology is used both to ensure the safety of protected objects and to prevent software from being in a controlled area of airspace. Video analytics software is used to obtain an objective assessment of the effectiveness of airspace monitoring, as it is able to produce continuous and automated collection and analysis of video data, independent of the human factor, and generate reports at the request of the user at any time .

Nonlinear signal conversion in a formal neuron circuit

2021-07-15T17:57:13+00:00

The interest in researching artificial neural networks (ARNs) is due to the fact that the method of processing information by the human brain is very different from the methods commonly used by digital computers. The brain has the ability to organize its structural components, called neurons, so that they can perform specific tasks (eg, pattern recognition, sensory signal processing, motor functions) several times faster than the fastest modern computers. [1]. At the Department of Radio Engineering and Radio-Electronic Systems of the Faculty of Radio Physics, Electronics and Computer Systems of Taras Shevchenko National University of Kyiv, a research group has been organized to build and study analog models of ANN on operational amplifiers.

The concept of digitization and research in the field of gert networks management of public sector projects and programs

2021-07-15T18:05:16+00:00

The modern world space has long gone beyond the construction of the information society, because digital technologies are absorbing more and more spheres of public life, radically changing the forms and methods of their implementation. Therefore, most countries in the world focus on development in the direction of building a "digital economy", using all possible competitive advantages from its implementation. Ukraine is trying to keep up with the development of information technology in various areas of both public sector governance and public life. Some achievements have been made, but the systemic and synergistic effect on the country's development has not been achieved, despite the significant potential of domestic IT specialists, who are among the top five IT outsourcers in the world. In my opinion, the use of digitalization in the field of governance in the public sector can be a significant impetus for digital transformation for the development of Ukraine's competitive economy. Therefore, we need an analysis of theoretical and practical approaches to a detailed study of the features of digitalization in the public sector of Ukraine during its digital transformation and the development of proposals for their implementation, which became the topic of my research.

Reinforcement of metal structures by external reinforcement by gluing high-strength fiber-reinforced systems: analytical approach

2021-06-28T09:00:25+00:00

Ukraine's construction heritage includes numerous examples of the use of metal structures, especially those used in industrial buildings and high-span structures. The use of metal structures in construction is due primarily to their mechanical properties. They are frost-resistant and can withstand temperatures down to -65 degrees, hard, durable, strong and reliable. They can also be used in areas with high seismic activity. But, as in the case of other types of structures, there is a need to restore or strengthen metal structures due to structural defects, wear of load-bearing elements, as well as to increase the load-bearing capacity. In some cases, reinforcement with fiber-reinforced polymer composites (FRP) gives a better result compared to traditional methods of reinforcement using metal

Law of normal distribution of ZTRK-complexes in the structure of urban formations

2021-06-28T09:16:44+00:00

ZTRK is a stop-territorial resource concentrator of town-planning formation of any level of hierarchy, in particular, ZTRK-system, which consists of several ZTRK-complexes formed by the corresponding ZTRK-units. ZTRK-unit is the "lowest" integral structured unit, which is the basis for the construction of urban formation of any level of hierarchy.

Formation of the architectural space of health care facilities based on landscape design

2021-07-14T21:57:52+00:00

Architecture is gradually changing along with the development of society, its changing perceptions of beauty, strength, usefulness, as well as the growing need for comfort, aesthetics, the ideal environment. For a long time, the architecture of health care facilities was perceived and, accordingly, mechanically designed exclusively as a kind of technically necessary shell to ensure the treatment of the impersonal mass of the population. This approach was due to the acute and rapid need for a quantitative supply of medical institutions to a large number of people in large areas. This is what happened in the last century in the post-Soviet countries - standard projects of medical institutions were "cloned" everywhere, which were integrated into the urban environment by huge industrial-panel arrays without regional, cultural and aesthetic connection with "genius loci" and urban context. Do we have the right to condemn this large-scale approach that prevailed in the twentieth century? No. At one time, he made it possible to resolve the important issues of providing medical care to the majority of the population of the Soviet Union. Thanks to the massive and economic industrial design and construction approach, Ukraine has received an extensive urban network of various health care facilities, which continue to perform their functions, accepting the harsh challenges and trials of global pandemics and epidemics. The main problem is that with the acquisition of sovereignty in Ukraine began protracted political-oligarchic clan "internecine wars", which for decades froze attention to improving, modernizing, updating and developing the architecture of health care facilities. A significant part of Ukrainian hospitals is in a condition that not only does not meet sanitary and other requirements, but even threatens the health and lives of patients and staff. But it is not customary to talk about it. The Soviet mentality, enshrined in our subconscious, forces everyone in their place to report on the order, on compliance, on the implementation of plans. Despite the long-standing disregard for the problems and issues of compliance of domestic medical architecture with world standards, the powerful and once the world's best "machine" continued to perform its functions, inertially moving down from its pedestal. But today, in 2021, we are frantically approaching the foot of the new "rock", which embodies all the latest advances in health care and which the world's leading countries have gradually, step by step, overcome with long-term state plan for the development of medicine and with periodic reforms in the medical field.

Aspekty medyczno-prawne dotyczące żywienia w kontekście bezpieczeństwa ekologicznego żywności

2021-07-15T11:56:29+00:00

They know better all the features and risks of their business, and therefore they must be responsible for their safety. Implementation of the main elements of the new food safety control system in Ukraine takes place through the implementation of a permanent procedure based on the HACCP principles [1−3]. Now, entrepreneurs must identify potential hazards and risks of the production process and capacities, as well as take all necessary measures to minimize them. Together with greater responsibility the entrepreneurs receive more freedom. For example, the state cannot require the factory to have light walls above 1.8m. The quality is a subjective and personal concept, and safety requirements must prevent the harmful effects of products on the health of the consumer. At the same time, Ukrainians need to know what they are consuming. Therefore, lawmakers are currently working on a draft law on providing information to consumers about food. The new system to which Ukraine passes allows a clear distinction to be drawn between liabilities for causing harm due to the consumption of a dangerous product. According to the concept of the food chain «from the lawn to the table», the quality of the product must be baked at each stage of the commodity circulation, and each businessman is responsible for the safety of the food within its activities: the manufacturer − within the limits of production, the carrier − within the scope of transportation, the store − within storage and sale. Consequently, at each point of the food chain, the entrepreneur knows where the raw material or product came from and where it comes next. If the customer receives a health hazard product, this system helps to identify: who is responsible for causing harm. In this chain, there should be feed for productive animals. The draft law «On Safety and Hygiene of Forms» has already been developed and registered. If the feed contains harmful substances, they will continue to enter our body through products made from animal meat.

Geoinformation system for monitoring the state of river waters

2021-07-15T12:08:31+00:00

Insufficient and untimely forecasting of the level of floods, floods and mudslides, as well as the lack of a modern, full and integrated protection complex lead to annual losses in the agricultural, industrial and social sectors of the economy, as well as human casualties. (30 people in 2008 in Ukraine). The floods of 1969, 1974, 1980, 2000, 2008, 2019, and 2020 were the most negative. At the same time, the flooding of the territories that took place in the Ivano-Frankivsk region in 2000-2008 caused damage to the facilities and the population of the region in the total amount of more than 5.2 billion hryvnias. Despite a number of existing systems for monitoring and forecasting the level of flood waters, such as "TISA", "Prykarpattya", "AXON", etc., they have not found wide practical application due to low efficiency, high cost and disregard. -management of water-physical properties of soils. In this regard, the task of developing systems for monitoring and forecasting the level of flood waters in order to prevent or reduce possible losses in the agricultural, industrial and social sectors of the economy from their negative consequences remains relevant.

Mathematical modeling of ecological safety on the basis of collective remote access databases: on the example of landslides of the Middle Dnieper

2021-07-15T12:18:51+00:00

A mathematical model for the calculation of the main indicators of environmental safety on the example of landslides of the Middle Dnieper region. The model with the data of regime observations of the system of ecological monitoring, gives the chance to estimate a situation for the investigated period, to define the basic dangerous indicators and on them to make the forecast (in the form of diagnostics of mathematical model on change of sizes of parameters). ). Also assess the environmental risks for making sound management decisions to control the quality of the environment

Corrosion resistance of welded joints made by underwater wet welding

2021-07-14T22:25:12+00:00

One of the reasons of coming out of order of metal structures, operating in water environment, including sea conditions, is the corrosion. Thus, for example, the corrosion wear of metal of the ship hull underwater part can reach from 0.3 up to 0.5 mm/year. The corrosion of welds is the ever more critical situation. The rate of their fracture exceeds the rate of the base metal corrosion and in some cases it may reach 1-3 mm/year [1, 2]. The great selective corrosion in the form of fissures along the welds (on both sides) was observed in heat-affected zone (HAZ) metal of slot, butt welds and welds for welding-on to the basic workpiece, i.e. up to 1 mm/year, in some cases a through corrosion fracture of the fusion line (formation of blowholes) was observed [1]. In the opinion of the work authors [2] the welds are subjected to fracture due to the occurrence of thermal electromotive force between the parts welded under conditions of high electric conductivity of the sea water (Seebeck effect).

To repair the corroded welded joints of metal structures, operated under the water, a wet underwater welding is used. At the E.O.Paton Electric Welding Institute the specialized flux-cored wires have been developed, which are designed for welding low-carbon and low-alloyed steels, including those of a higher strength. In the latter case the electrode materials of an austenite type are used to provide resistance against cold crack formation in the HAZ [3]. The work was aimed at study of corrosion resistance of welded joints with ferrite and austenite deposited metal, made by the underwater wet welding, under the conditions, which simulate the service conditions in sea water.

Improvement of crane-manipulator equipment for emergency rescue and restoration works

2021-07-15T09:43:34+00:00

To implement state policy in the fields of civil protection, protection of the population and territories from emergencies and their prevention, emergency response, rescue, fire fighting, fire and man-made safety, emergency services, as well as hydrometeorological activities There is the State Service of Ukraine for Emergencies (hereinafter SES of Ukraine) [1]. 7 emergency rescue formations (central subordination), including aviation, are subordinated to it; 25 emergency rescue teams of special purpose and 1182 district fire and rescue units (territorial subordination) [2].

According to the main capabilities of the units of the Rescue Service of Civil Defense are divided into:

1) units intended for extinguishing fires, rescuing people and property in case of fires, at facilities and territories, regardless of subordination and form of ownership, conducting emergency rescue operations, providing primary medical care to victims.

2) formation (detachments, centers) designed to eliminate accidents (catastrophes) of technogenic, natural and military nature, the consequences of natural disasters (earthquakes, storms, landslides, landslides, mudslides, floods, snow snowdrifts, icing, etc.), search and rescue, fire and rescue operations, international rescue operations, demining activities and civil and territorial defense measures, national and regional in nature.

They include:

- fire and rescue units - for firefighting, rescue of people and property at facilities and territories, regardless of subordination and form of ownership. - rescue units - designed to deploy and carry out rescue and other urgent work in the shortest possible time, to search (including the use of service dogs) and rescue people who are in destroyed, burning buildings, under the rubble, including excavation of victims from collapsed buildings, as well as to provide first aid to victims;

- engineering - for conducting engineering reconnaissance of routes and centers of destruction, clearing of blockages, excavation of victims from under the damaged constructions, creation of special passages in blockages, collapse of designs, detection of damages in utility and energy and technological networks, preparation and maintenance of roads, formation of fencing anti-fire lanes;

- radiation and chemical protection - conduct radiation and chemical reconnaissance, carry out dosimetric and chemical control of units, perform degassing, decontamination of uniforms and other material means, areas, roads and structures;

- pyrotechnic - detect and destroy unused ammunition, including aircraft bombs and other explosive devices, neutralize the affected structural elements of buildings and houses, as well as pierce passages in the rubble by explosive methods;

--water supply - designed for the development of water sources and equipment of water supply points;

- communication - to establish and maintain reliable communication, which provides communication between departments, governing bodies and various forces of interaction;

- material support - must timely meet the urgent needs of units with special equipment, fuel, products, protective equipment, clothing, medical, technical property and other material means.

Units of the SES of Ukraine have at their disposal a significant amount of equipment, which can be divided, depending on its functionality and purpose for fire and rescue vehicles, vehicles for special work in emergencies and special cars. [3] Of the self-propelled vehicles for emergency response, wheeled vehicles for all types of work have become the most widespread.

Load of abrasive reinforced wheels when changing technological parameters

2021-07-15T09:54:13+00:00

Abrasive reinforced wheels in combination with the use of manual and stationary grinding machines are widely used in construction and installation work and are among the most common types of hand tools. Domestic and foreign manufacturers of abrasive tools offer products for cutting, cleaning and grinding operations with different design and physical and mechanical properties for processing various materials. The optimal choice of technological and technical parameters of machines, combined with the correct selection of the required abrasive working tool, allows to reduce labor intensity and increase productivity and quality of work with the desired effect [1 ... 4]. It should be noted that the work of such machines is often carried out in an awkward position, at the cost of large additional and unreasonable efforts at high speeds of operations. The process of working with manual grinding machines (including those with abrasive reinforced wheels) has a number of features, they include: instability of the supply in size and direction; continuous change within the allowable power of the drive intensity of the work process; limiting the forces arising at the point of contact of the working tool (abrasive reinforced circle) with the working environment, both the power of the drive and the individual physiological data of the operator. The task of improving working conditions, improving the efficiency of the use of machines for construction and installation work and ensuring the safe operation of the operator requires a comprehensive assessment of the production environment of operators, taking into account the principles of ergonomics. With a clear shortage of manpower during construction and installation and repair work, such a factor in increasing labor productivity as maximum use of labor resources through the creation of comfortable working conditions and the involvement of ergonomically sound tools and its mode of operation can no longer be ignored. -ся. The analysis carried out by the authors [5, 6] of interaction in the system "operator - machine - working environment" when working with angle grinders equipped with cutting and cleaning abrasive reinforced working bodies shows a close relationship between the load on the working body and effort which are perceived by the machine operator, due to the significant influence of the operating parameters. Determining the load on the working body, based on technological conditions is an urgent task, as in the process of abrasive reinforced wheels torque on the spindle and rotation of the working body is created by the drive of the machine, and all other functions - longitudinal and transverse feed, maintenance of the car and general management - are carried out by the operator. When working with hand grinders, the operator can hold it in any position and ensure a sufficiently precise feed direction of the wheel.

Instrumental software package for simulation modeling of membrane separation processes of liquid dispersed systems

2021-07-15T10:05:09+00:00

One of the main problems of socio-economic development of modern society in the XXI century is to improve the structure of the food industry as one of the leading links in the world economy. To achieve this goal, it is necessary to ensure the solution of a range of scientific, technical, economic and environmental issues, which requires a comprehensive combination of several modern technologies. A special place among them is occupied by membranes, which are used for separation of dispersed systems at many food enterprises and allow to create energetically and ecologically rational options for separation and concentration of solutions using a wide range of filter elements based on inorganic materials. Computer modeling plays an important role in their research. The current technical level of software allows to solve this problem, but only in the presence of a comprehensive research methodology based on information technology design. This will ensure the fullest consideration of all aspects of the technological process.

The use of loaders in the manufacture of products using dry mixes

2021-07-15T10:13:55+00:00

The results of the use of loaders in the manufacture of various products using dry mixes are analyzed.

Formation of wells for underground engineering communications by a screw working body

2021-07-15T11:46:43+00:00

A new method of creating soil cavities for trenchless laying of underground utilities with the help of a screw working body is proposed. The calculated dependences are obtained and the estimation for practical implementation is given.

Establishing the technical performance of the chain excavator with cutters working in conditions critical deep cutting of soils

2021-07-15T12:25:40+00:00

The calculated dependence for determination of technical productivity of the chain excavator with the cutters working in the conditions of critical depth cutting of soils is offered. An assessment is given for the practical implementation of the research results.

Piezoelectric devices for energy harvesting in building structures

2021-06-28T09:07:57+00:00

Devices that convert vibration energy into electricity and are capable of its accumulation (energy harvesting) are very promising both in mechanical engineering (damping oscillations with the conversion of excess energy into electricity) and in electronics and the environment (systems for energy storage and replenishment). That systems convert extra motion of engineering devises into electrical energy used for their autonomous operation or for power supply of other devices [1]. Another application is portable electronics, where energy storage devices can power or charge mobile phones or other devices. When energy sources are limited, energy harvesting plays an important role in the environment.

Energy harvesting as a separate direction began to develop in the 1990s. Human, bicycle, water flow, low-frequency oscillations in mechanisms, etc. can be used as sources of mechanical energy for the piezoelectric transducer. Usually, due to steady oscillations, piezoelectric elements produce alternating electric current, showing the greatest efficiency at resonant frequencies. Most piezoelectric power sources produce power of the order of milliwatts, which is small enough for system use but sufficient for portable devices. Piezoelectric systems can convert the movement of the human body, such as the movement of legs and arms, shocks and blood pressure to obtain energy from implanted or portable sensors. Piezoelectric elements are built into running and walking roads, shoes, pavement, etc. One of the priority areas of research is the development of autonomous wireless sensors that receive energy from the measured signal, or use other ways to obtain mechanical energy. Their use becomes relevant in atypical tasks - measuring oscillations in hard-to-reach places of rotating mechanisms, seismic sensors and so on. Smart roads can play an important role in electricity generation. The incorporation of piezoelectric material into the road can convert the pressure exerted by moving cars into voltage and current.

Arranging the street is the key to improving traffic safety

2021-06-28T10:18:59+00:00

The main purpose of the city's road network is to ensure fast, unobstructed and, most importantly, safe traffic for all its participants. This can be achieved both by rational planning of the street and road network of the city as a whole at the stage of the master plan, and by introducing various engineering measures for the arrangement of individual streets at the stage of a detailed plan of territories. Of course, each stage of urban planning has its own specifics and capabilities to ensure urban traffic, but all these measures should be developed as a single program, ranging from more generalized to the city as a whole and detailed for specific streets.

Application of laser scanning for monitoring condition of buildings and structures during reconstruction

2021-07-14T22:10:23+00:00

Ground-based laser scanning technology has been increasingly used in the last 15 years to solve problems not only in engineering geodesy, but also in the inspection of buildings and structures, in particular to identify damage and deformation during operation and reconstruction, as well as operational control of construction. and monitoring of their condition during operation, 3D-modeling of complex architectural objects. The growing popularity of laser scanning is due to a number of advantages provided by the new technology in comparison with other measurement methods. Among the advantages are the main ones: increasing the speed of work and reducing labor costs. The emergence of new more productive models of scanners, improving software capabilities allows us to hope for further expansion of the scope of ground-based laser scanning. Three-dimensional laser scanning emits millions of laser beams and, by calculating their return time, can accurately and accurately calculate their three-dimensional locations to make multiple high-speed scans combined into one system. This works by digitally recording the dimensions and spatial communication of objects by reflecting laser radiation.

Construction diploma design on VIM-technology

2021-07-14T22:16:52+00:00

The development of the construction industry of Ukraine as a basis for economic transformations through the introduction of information technology (IT), put forward appropriate requirements for specialists. There is a need at the state level to solve the problem of need and development in the labor market of competencies of specialists for the construction industry in the implementation of VIM technologies, creating a single information model in the construction of Ukraine, which would combine architectural, design, engineering, cost, ecological components with access to cost-effective decision-making for the life cycle of the object and, accordingly, the introduction of innovative technologies in the education and training of competent professionals.