Communications - Scientific Letters of the University of Zilina - Online first
Dynamic Routing with Static Delivery Time Windows in Urban Last-Mile Transport Logistics
Viktor Danchuk, Oleksandr Hutarevych, Stanislav, Popov, José Vicente Busquets-Mataix
Communications - Scientific letters of the University of Zilina X:X | DOI: 10.26552/com.C.2026.001 
To address the challenges of dynamic routing in the last-mile transport logistics, an adaptive method has been developed for solving a multi-criteria dynamic vehicle routing problem with static time windows, taking into account the actual configuration of the urban road network and the non-stationary traffic dynamics on its sections. At the same time, the method enables the use of consolidated real-time data on the dynamic characteristics of traffic flow on sections of the transport network from any sources available at the time of optimization (e.g., GIS, road sensors, mobile devices, etc.). The results of simulation studies using the ant colony...
An Analytical Model for Calculating the Active Interaction Forces of the Working Body of Earth-Moving Machines with Sticky Soils
Nurbol Kamzanov, Shynbolat Tynybekov, Nursat Baikenzhe, Guldariya Naimanova, Bakytzhan Kyrgyzbay, Rustem Kozbagarov
Communications - Scientific letters of the University of Zilina X:X | DOI: 10.26552/com.C.2026.002
In this study is presented an analytical mathematical model developed to determine the forces arising during the active penetration of machine working bodies into sticky rocks. The methodology is based on the method of element-by-element calculation of resistances, where the contact zone is divided into discrete prisms of material. As a result of the analysis, a final formula for the total penetration force is derived. This formula shows the dependence of the resistance force on the dimensions of the tool (thickness, depth, angle of sharpening) and the physical characteristics of the rock (internal friction, adhesion, stickiness). The model serves...