The article presents a variant of quality control of rock mass fragmentation and reduction of seismic effect of explosion (hazardous zone boundaries) based on the application of electronic initiation system "Nefrit" (EIS "Nefrit") for production of mass explosions in quarries. The effect of application of EIS "Nefrit" is provided by reducing the cost for excavation and transportation ...

The article describes the relevance of switching to an alternative energy source, and also examines the behavior of a polymer material in an innova-tive shock-centrifugal type installation in order to obtain RDF fuel.

Video surveillance systems are the most high-tech components of the security system at any facility, which are firmly integrated into our lives as elements of ensuring its safety. The most effective ways for self-service stores are to install video surveillance systems in the sales area, utility rooms and warehouses, install anti-theft frames and tags on the goods. The control ...

To increase the railway wheel sets service life in use and reduce the needs of railway transport for new wheels during the repair process, it is advisable to use not only economical ways to restore the geometric parameters of the rim, but also to restore the physical and mechanical properties of the metal profile of the wheel rim surface.

For the use of a laser in the aerospace industry, it is required to meet a number of parameters that should ensure reliable and stable operation of the device in which the laser will be used. It is also worth keeping in mind the technological aspect of the laser, such as the adjustment and testing of the system, for further analysis of the data obtained and evaluation of the results.

The study focuses on the features of counterbores used for creating internal chamfers in energy engineering components such as collectors and tube sheets of heat exchangers. The designs of counterbores with replaceable carbide inserts, as well as reverse-feed counterbores, are described. The technical characteristics of the tools, material requirements for the cutting edge and ...

The results of a possible modernization of a face scraper conveyor are presented in terms of a more optimal number of teeth on the drive sprocket, as well as by using additional pallet plates, pivotally fixed to the rear walls of the scrapers and resting on the links of the traction-drive chain. The efficiency of the conveyor is achieved by reducing the specific energy consumption ...

An approach to assessment of vehicle driver’s vigilance during professional activity is proposed. The approach is based on monitoring of the vehicle, driver, and environment states; and involves detecting the unintentional deviation from the driving lane, unsafe distance from the vehicle ahead, potential collision with a pedestrian in front of the vehicle, and speed limit signs ...

The microstructure and phase composition of the material based on impact diamonds obtained by hot dynamic pressing have been investigated.

The article describes the creation of a prototype of a 3D laser scanner, a triangulation calculation, creation of a 3D model and selection of a laser diode. Writing software Also selecting components of a 3D laser scanner and assembling a prototype for software testing.