To produce high-quality prints using flexographic printing technology, it is important, among other factors, how accurately and consistently the ink is delivered to the printing plate, and, from there, onto the printed material. This function is performed by anilox rollers. The aim of this research is to investigate the condition of anilox rollers in printing houses in the Baltic states. The study evaluated the wear and cell clogging of anilox rollers. The dependency of clogging on the cell size, as well as the dependency of wear on the cell size (i.e., change in cell volume) and quantity of doctor blades, was investigated. In addition, the uniformity of cell clogging and wear on the surface of the anilox roller was evaluated. Studies have shown that more than half of the anilox rollers in printing houses are not washed properly; higher line screen anilox rollers tend to become more clogged, and it is important to take measurements at more than three locations to assess the reliability of more worn rollers.

The key request for a vehicle suspension system is vibration control and decreasing the actual inertia forces. This ensures ride comfort for the crew and influences the fatigue level of the driver and overall driving safety. Implementing semi-active damping control in the vehicle suspension allows for adjusting the damping process in the vehicle for minimum acceleration applied to the seats, driver, and passengers. In order to implement theoretical analysis, we used a mathematical full-car model in Simulink/MATLAB. As the load, we added simulations of various artificially generated road profiles. The damping coefficient of the semi-active suspension system was optimized for maximum comfort level for a driver only. Results from the full-car simulation process deliver a graph of the output accelerations showing kinematic excitation from road deformities under various locations of vehicle load positions.

This paper analyses the dynamic behaviour of centrifugal milk separator's bearing-rotor system equipped with vibration absorbers. It is shown that rotational milk motion inside the separator causes a centrifugal force that increases dynamic unbalance...

Modern consumer technologies have become more intuitive and user-friendly. On the other hand, as automation levels rise in most factories and warehouses, it is becoming increasingly difficult to configure certain processes without a specialist’s involvement. Typically, these facilities employ staff without an engineering background in robotics, who can only perform their direct duties but are unable to create maps and routes for mobile robots. This article describes an alternative approach to creating a multi-purpose navigation map using mixed reality glasses, demonstrating the capabilities of Meta’s Meta Quest 3 glasses as a versatile mixed reality device for 3D room scanning and navigation mapping. In this paper, we demonstrate how a mixed reality approach can be applied to additional mapping evaluation for rooms of varying complexity and shape, including problematic areas for many similar solutions when the room contains mirrors and glass walls. Although environmental scanning in the Meta Quest 3 glasses is a standard integrated function of these glasses, it is used only for the collision avoidance system; this device can be successfully implemented in the Internet of Things system, and the collected data can be used for 3D scanning of the environment, creating navigation maps after additional data processing. This method expands the implementation of automated moving systems, including simplified map creation for mobile robots, in complex environmental and movement tasks.

Energy is the binding constraint on unmanned aerial vehicle survey missions, yet most coverage path planners commit to a single sweep pattern regardless of region shape. Our central contribution is to select decomposition granularity and the per-cell coverage pattern by a single physics-based energy criterion. A boustrophedon cellular decomposition with a controlled-concavity merge sets granularity; for each sub-polygon, the planner evaluates a minimum-width lawnmower and a shape-mimicking spiral and keeps the cheaper, with the undecomposed single-sweep solution always in the search space. On 50 benchmark polygons, at a 90% coverage floor, the hybrid reduces energy over a spiral baseline by a median 4.8% (ratio of means 11%) and is never dearer than either fixed pattern at floors of 90–99%. Which pattern is cheaper depends on geometry—lawnmower and spiral are not separable in aggregate (Wilcoxon $p=0.47$). A boundary-reflective zigzag for double coverage achieves 46% fewer turns and 18% less energy than boustrophedon $2\times$. The hybrid keeps the lowest mean energy under ±20% parameter perturbation and on larger fields with wider row spacing.