Recently, the main principles in the field of municipal solid waste management are recycling and reuse of secondary resources. Information technologies are widely used in modern waste management technologies. Problematic is the issue of recognition of the sorting object on the waste conveyor. There are various robotic systems for automated separation of sorting objects. The article provides a description of the system in the process of "recognition - capture - movement" of a sorting object on a common conveyor. A group of sensors is used to identify objects on the conveyor, while simultaneously fixing the coordinates of each identified object on the surface of the conveyor belt. Information about the coordinates and properties of each identified object is transmitted over the communication line to the control panel by manipulators, which capture individual identified objects and mix them into special containers.

Keywords: sorting, waste, automation, recognition systems, sensors, manipulators

This article discusses the development of a magnetometer calibration device, which is controlled by a microcontroller, Arduino [1, 2], which can receive, process and transmit the necessary commands to the peripheral part of the installation using the written program code. The need for buffer circuits and elements allows you to control I / O devices. With their help, interface hardware is implemented. Structural and functional diagrams of the device were developed. And also the calculation of the parameters of the Helmholtz coils was carried out, their 3D model was built. With the help of the Gaussmeter, a full-scale experiment was carried out, which confirmed the operability of the device and its effectiveness.

Keywords: control and measuring device, induction, Helmholtz coils, gaussmeter

This article discusses the development of a digital weather station with the measurement of geomagnetic field parameters. The advantage of the developed device is the possibility of simultaneous stable and correct operation of several sensors (namely 15), measurement accuracy at long distances (up to 300 meters). Structural and functional diagrams of the device have been developed. The voltage regulator of the device is designed in the Micro-Cap circuit analysis program. Experimental studies of the finished device were carried out.

Keywords: digital weather station, geomagnetic field, magnetic sensor, Arduino

It is not always possible to use anchoring structures for securing vertical walls of excavations. Most often spacer structures made of pipes have to be used. A special distribution belt consisting of I-beams is required to redistribute the spreading forces from struts and the ground. This article presents the results of a study of structural options and the design of a support table for the spacing structures of walls in the ground (vertical walls of excavation sidewalls).

Keywords: Distribution belt, I-beam, support structure, table, excavation, spacer structures, T-bar, wall in the ground

This article considers the development of an information-measuring system for determining the thermophysical parameters of electrical devices. The developed functional diagram of the device is presented. Experimental studies were carried out in the COMSOL program. As a result of an experimental study of the transfer of heat from one part of the electromagnet to another, namely from the magnetizing coil, through the core to the environment, it was concluded that the best location of the temperature sensors is in the upper part of the body of the electromagnet EM-34-5. The data obtained can be used to determine the thermophysical parameters, in solving problems of the theory of inverse problems of heat transfer and heat transfer.

Keywords: information-measuring system, electrical devices, thermophysical parameters, COMSOL

Results: in this article, the authors reviewed the process of workforce planning on the example of 3 General Contracting organizations. Having the technical documentation on the objects of the General contractors under consideration, the authors were able to deduce the number of workers during the construction of buildings. After analyzing the available statistics, we made a number of graphs showing the movement of monolithic teams on the objects. Based on the resulting graphs, the authors determined the average deviation of the actual number of monoliths from the planned one. Conclusions: the authors analyzed the dynamics of the construction of characteristic objects of different General Contracting organizations, indicating the difference in the values of the planned (projected) and actual labor resources at the facilities. Also, in this article the authors consider a number of the most used in the construction industry software systems for automation of labor resource planning processes, made their analysis and comparison of the main features and characteristics.

Keywords: Software systems in planning, current planning, labor resource, systematization of labor resource fluctuations, automation of planning, production program, labor resource planning

The article discusses the effect of photon drag (EPI) of electrons in a semiconductor quantum wire (QW) with hydrogen-like impurity centers and Kane's dispersion law, located in a longitudinal magnetic field. An analytical expression for the drag current density is obtained in the effective mass approximation, and its spectral dependence is investigated for various values ​​of the magnetic field B and the parameters of the QW upon scattering by a system of potentials of short-range impurities. It was assumed that the QW has the shape of a circular cylinder, on the axis of which hydrogen-like impurity centers are localized. It is shown that, in the one-band approximation, taking into account the nonparabolicity of the dispersion law leads to significant dynamics of the threshold of the spectral curve. The spectral dependence is characterized by a pronounced Zeeman effect. The possibility of using an ESP for the development of photodetectors of optical radiation with a sensitivity controlled in a magnetic field is discussed.

Keywords: electron dragging by photons, quantum wire, hydrogen-like impurity centers, dragging current, dipole approximation

The article discusses the requirements for automated control systems in the production of Earth orientation devices. Various types of interferometers are analyzed for use in an automated control system for the manufacture of optical instruments for orientation of spacecraft on the Earth. An overview of the most common interferometer models is given, the characteristics and features of their schemes, development trends and manufacturers are discussed in detail. A comparison was made of the parameters of a number of imported and domestic interferometers suitable for use in an automated control system. The advantages and disadvantages of interferometers according to the schemes of Jamen, Mach-Zehnder, Sagnac, Michelson and Fizeau are considered. The Jamen interferometer was invented for the first time in 1856, to measure small refractive indices of gases. The Mach-Zehnder interferometer was developed on a similar principle, its main feature is that the beams of the rays obtained can be separated at a sufficiently large distance using a semitransparent mirror. In 1913, the Sagnac interferometer was invented; in its design, the light is divided by a semitransparent plate-divider into two beams, which propagate in a circle and are reduced by mirrors back to the divider. Albert Michelson in 1890 proposed an interferometer scheme, the basis of which is a light-splitting mirror. One of the most common is the Fizeau interferometer scheme, proposed in 1868. In this type of device, interference occurs in the gap between two reflecting surfaces. Based on the parameters of the problem under study, the choice in favor of the interferometer configuration according to the Fizeau scheme is justified. Interferometer OptoTL-60/125 from LLC "Optical laboratory" meets all the requirements.

Keywords: automated control system, laser interferometer, Fizeau interferometer, optics, photonics, optical production, interferometry

This paper presents an information model of a relational database developed by the authors, designed to take into account the teachers workload of an educational organization. The identification of the subject area entities, their decomposition and the relationships identification between them are carried out. The constructed database model was brought to the Boyes - Codd normal form. Based on the designed database schema, its physical implementation and filling with test data was carried out. The results of test queries showed the developed model adequacy and the its practical applicationp ossibility. It is currently in trial operation at the Department of Information Systems and Computer Modeling, Volgograd State University. With minimal changes, the developed database schema can be applied to account for the teachers workload in various educational organizations.

Keywords: database, information modeling, "entity-relationship" diagram, decomposition, information system, educational organization

This article examines the range of issues related to the construction of the subway in Ho Chi Minh City, Vietnam, using the example of the newly built Thu Thuem area as an example. The problem of construction lies in the difficult mining and geological conditions of Ho Chi Minh City. The geological structure has terrigenous-mineralogical associations, which makes the underground tunneling of the subway lines very difficult. Therefore it was decided to build the subway on trestles, but the calculation of foundations on terrigenous-mineralogical associations requires a detailed geological study.

Keywords: subway, terrigenous-mineralogical associations, overpasses, geological structure, Ho Chi Minh City, geological structure, Thu Tiem district

The article proposes a method for analyzing and assessing the quality of wheat seeds by classifying their images using artificial intelligence, namely a convolutional neural network. The architecture of a deep convolutional neural network was proposed, an image base was created for training and testing the proposed neural network, training and testing of the neural network was carried out in Tensorflow. Conclusions about the efficiency of image classification are made and areas of use of the proposed method for analyzing and assessing the quality of wheat seeds are proposed.

Keywords: convolutional neural networks, artificial intelligence, image classification

During the reconstruction of facilities carried out in the conditions of existing urban development, questions often arise to solve the specific task of carrying out work on capital construction projects. For example, the work considered in the article on the reconstruction of health facilities is carried out in the conditions of existing institutions, various campuses or environments. At the same time, a number of factors that significantly affect the labor costs of workers, the methods of organizational and technological design adopted in construction are not taken into account. In the process of organizing reconstruction work in conditions of limited space and in rooms of small volume, there is a problem of determining the duration of work. There is also a problem of determining the number of necessary labor resources for a directive specified duration according to the terms of Government contracts. To solve the problem of coordination, the article considers the possibility of using transactional platforms.

Keywords: reconstruction, healthcare facilities, organizational and technological solutions, documentation, workspace, time, labor costs, transactional model, productivity

The paper proposes a method for preparing a dataset for training and testing neural networks in the MATLAB environment using the Image Processing Toolbox package of functions. An example of the implementation of this technique for preparing a dataset for training convolutional neural networks to classify wheat seeds into high-quality and low-quality classes according to its images is given. This technique was used to obtain a dataset of 900 images, which were successfully used to train and test the convolutional neural network.

Keywords: dataset, convolutional neural networks, artificial intelligence, image classification

In this article is considered progressive technology for producing heat-insulating materials by the method of self-compacting masses. Implementation of this method will allow obtain a significant economic effect in comparison with traditional technologies. Due to the use of the effect of obtaining excess pressure in a closed perforated form from an increase in volume during heating of pre-expanded polystyrene granules, it became possible to remove excess moisture, reduce the time of the technological process, and reduce energy consumption. This method allows to combine several processes in one operation: compaction of the mixture, heat treatment, removal of excess moisture. As a result of theoretical and laboratory research and experimental-production approbation, the possibility of implementing of heat-insulating materials of a wide range of applications with improved operational properties into mass production has been obtained. Perlite concrete is one of the effective heat-insulating material, the production of which is possible using the method of self-compacting masses. An assessment of the qualitative efficiency of perlite concrete was carried out: the thermal conductivity coefficient is within the limits required for effective heat-insulating materials. It was concluded that the use of perlite concrete in construction is promising: it is possible to reduce the drying time in 10-12 times, eliminate drying shrinkage, eliminate mechanical processing of products after heat treatment, obtain products of various configurations and volumes, with an improvement in strength characteristics at a minimum density. In this article is considered progressive technology for producing heat-insulating materials by the method of self-compacting masses. Implementation of this method will allow obtain a significant economic effect in comparison with traditional technologies. Due to the use of the effect of obtaining excess pressure in a closed perforated form from an increase in volume during heating of pre-expanded polystyrene granules, it became possible to remove excess moisture, reduce the time of the technological process, and reduce energy consumption. This method allows to combine several processes in one operation: compaction of the mixture, heat treatment, removal of excess moisture. As a result of theoretical and laboratory research and experimental-production approbation, the possibility of implementing of heat-insulating materials of a wide range of applications with improved operational properties into mass production has been obtained. Perlite concrete is one of the effective heat-insulating material, the production of which is possible using the method of self-compacting masses. An assessment of the qualitative efficiency of perlite concrete was carried out: the thermal conductivity coefficient is within the limits required for effective heat-insulating materials. It was concluded that the use of perlite concrete in construction is promising: it is possible to reduce the drying time in 10-12 times, eliminate drying shrinkage, eliminate mechanical processing of products after heat treatment, obtain products of various configurations and volumes, with an improvement in strength characteristics at a minimum density.

Keywords: method of self-compacting masses, heat-insulating perlite concrete, electric heating, closed perforated volume, bead polystyrene, energy efficient material

This paper presents a mathematical model and a geometric method of image-based object classification intended to improve the accuracy of object classification by filtering out noise objects.

Keywords: image processing, object recognition, pattern recognition, object identification, classification