The results of the analysis of the cost of the supplied heat energy to municipal consumers of the city of Bryansk with centralized heat supply from the boiler house and decentralized heat supply from the attached modular boiler house are presented. The long overdue need to modernize centralized heat supply systems and improve the tariff policy in the field of heat supply has been substantiated, since the payment for heating and hot water supply currently does not correspond to the actual consumption of thermal energy resources.

The article discusses the functional-structural scheme and the mathematical model of the working hydrodynamic processes in the throttle-adjustable hydraulic drive of the technological cranes-manipulators. The model allows to perform computer simulations of the kinematics and dynamics of the elements of the metal structure of the manipulator and hydrodynamic working processes in the hydraulic drive as jointly occurring and interacting processes. A description of a computer program that implements the developed mathematical model is given. The program allows to calculate the change in time of movement, speed and acceleration of the moving link of the handling system, pressure and volumetric flow rate of the working fluid in the characteristic points of the hydraulic system and a number of other parameters. The operation of the hydraulic drive of the real manipulation system was simulated and the obtained results were analyzed. The adequacy of simulation results and real physical phenomena observed during the operation of mobile machines is shown.

The article discusses the functional-structural scheme and the mathematical model of the working hydrodynamic processes in the throttle-adjustable hydraulic drive of the technological cranes-manipulators. The model allows to perform computer simulations of the kinematics and dynamics of the elements of the metal structure of the manipulator and hydrodynamic working processes in the hydraulic drive as jointly occurring and interacting processes. A description of a computer program that implements the developed mathematical model is given. The program allows to calculate the change in time of movement, speed and acceleration of the moving link of the handling system, pressure and volumetric flow rate of the working fluid in the characteristic points of the hydraulic system and a number of other parameters. The operation of the hydraulic drive of the real manipulation system was simulated and the obtained results were analyzed. The adequacy of simulation results and real physical phenomena observed during the operation of mobile machines is shown.

The article includes the analysis, the evaluation and spatiotemporal trends of the developments in the structure and efficiency of use of land by agricultural organizations of municipalities of the Bryansk region based on the analysis of a set of natural and value data. Also limiting factors is found out, the main ways of increasing the efficiency of land-use is defined in land-use the agriculture of the region.

The article is devoted to the topical issue, which is related to mathematical modeling of the failures of drives suspensions of the conveyor with suspended belt and distributed drive. Using the developed mathematical model of the failures drives suspensions due to jamming idle rollers to the reference design of conveyor with suspended belt and distributed drive the complex of calculations of dynamic characteristics is executed. Investigation of the influence of the number and relative position of the failed drives suspensions on the track on the main technical characteristics of the conveyor belt with suspended belt was carried out.

There is a problem of damage of bearings of traction induction motors of electric trains «Lastochka» by electric current. Based on the fact that the bearings have a ceramic insulation coating, and the cases of its electrical breakdown is not fixed, the authors put forward a version that a high-frequency current flows through the bearing as through an electric capacitance. The analysis show that the cause of the current can be a radio standard GSM-R The proposed technical solution against the damage of bearings: the use of grounding shaft rings and replace the bearings on the other with ceramic rolling elements.

The article is devoted to the development of a new rapid method for determining the strength properties of rocks. A new express research method is required to meet industrial safety requirements in the operation of coal mines. The article describes the procedure for conducting research in accordance with the developed express method. The paper describes the form of the indenter used in research. The publication discusses the mechanical properties of rocks most frequently used to solve mining and technological problems in Russia. The article resolved made the choice of indicators of mechanical properties of rocks with which the establishment of a correlation dependence is required. The publication describes the used laboratory equipment. It includes a special device «PSSh 1» and a laboratory stand for determining the energy intensity of rock destruction. The «PSSh 1» makes it possible to determine the strength of rocks in wells.

The article presents the relationship between the parameters of the container site equipped with straddle carrier in the form of mathematical models. In recent years, the transport infrastructure has been developing at a fast pace, however, until today, transshipment points, warehouses, and also container terminals are a bottleneck in the supply chain. In the context of continuous growing container traffic in railway transport, a significant problem is the increase in the capacity of container terminals. This problem is associated not only with the rational design or reconstruction of the terminal, but also with the increased use of loading and unloading machines, the placement of containers and throughput. This study proposes to solve the issue of capacity of the site by examining the relationship of the main parameters of the terminal, containers and gantry container loader. The article provides the formulas for calculating the total number of 20-foot containers, which is located on the container site — a common unit of measurement of container flows. In addition, for the option of equipping the container site with portal loaders (SC), formulas are proposed for determining the number of containers in width and in length. The number of tiers on the height of the stack for portal forklift trucks and the turnover of containers in the terminal has been determined. A graph of the results of the dependence of the capacity of containers on the width and length of the container platform. From the plotted chart, you can see that, first of all, the capacity of the container terminal is affected by the number of containers stacked in height. In turn, the height of the container stack is affected by the technical data of the portal forklift. Knowing the turnover of containers, a container flow was calculated, which can recycle a container terminal for a year. According to the calculation, a graph of the processing capacity of the terminal on the storage period of the containers has been developed. From the graph it can be concluded that with short shelf life the processing capacity increases. As part of the study, an algorithm for determining the capacity of the container site is proposed. In further studies, it is necessary to decide the placement of containers on the site, in order to increase the efficiency of PFP movement. When designing or reconstructing container terminals, it is recommended to use the capacity determination method developed in this study.

In this work, nanoscale copper compounds were obtained by thermal decomposition of copper capronate. Selected modes of pyrolysis of organic salt. Particle diameter calculations based on X-ray fluorescence analysis and sedimentation analysis are presented. It has been established that during the decomposition of copper capronate, copper (I) oxide particles and Cu particles, whose size is 30 nm and 11 nm, are formed.