Eye tracking (oculography) is a technology that allows recording the direction of human gaze on a visual stimulus. It’s application can provide researchers with valuable data on which elements of the environment are most attractive in various contexts, in areas such as marketing, psychology, etc. The aim of this work is to identify the pattern of human attention distribution on visual stimulus objects of different sizes using eye tracking technology. A webcam was used to record the subjects’ gaze movements while they were studying experimental images. The results of the experiments showed that larger objects in visual stimuli receive higher attention priority than smaller objects. This observation is true for both human-created works and images created by artificial intelligence (Kandinsky 3.1 is used in this study). The obtained results of the study will improve our understanding of how people perceive visual information, which can contribute to the creation of more effective approaches to interface development.

Keywords: eye tracking technology, attention priority, region of interest, number of eye gaze registrations, artificial intelligence, Vincent Van Gogh

The paper presents a solution to the problem of development a vector control system for an induction motor as part of an electric vehicle power plant, which ensures the maximum efficiency of the motor in various driving modes. A nonlinear mathematical model of an induction motor is used, in a coordinate system rotating synchronously with the magnetic field and oriented along the flux linkage vector of the rotor winding. The principles and methods of synergetic control theory are used to design a vector controller. The regulator provides the set speed of the electric vehicle and minimizes energy losses in changing driving conditions. The theoretical results are confirmed by computer simulation of the power plant of an electric vehicle, consisting of a storage battery, an autonomous voltage inverter, an induction motor and a car body. To simulate the power plant of an electric vehicle with the proposed control algorithms, the Simulink environment was used. The mode of execution of the speed reference of an electric vehicle was simulated in accordance with NEDC. Based on the analysis of the battery condition during the simulation of the electric vehicle's mileage, it can be concluded that the use of an energy-saving regulator is about 40% lower compared to traditional FOC systems.

Keywords: electrovehicle, induction motor, AKAR, IFOC, simulink

The analytical decision on definition of a forming wall of the bunker of the greatest capacity is provided in article among all bunkers having identical entrance and exhaust outlets. Such bunkers are intended for a hydraulic type of the expiration of bulk. They reduce a pulsation loose at its exit from the outlet and reduce extent of influence of the dynamic arches by account characteristics of the bunker.

Keywords: sliding lines, entrance openings, outlets, bunker, loose body, expense of the loose.