Issues 1-2

Kalinka Kaloyanova 1, 2, a) and Pavel Genevski 1, b)1 Sofia University “St. Kliment Ohridski”, Faculty of Mathematics and Informatics2 Institute of Mathematics and Informatics, Bulgarian Academy of Sciences,a) Corresponding author: kkaloyanova@fmi.uni-sofia.bgb)genevski@fmi.uni-sofia.bg Abstract. Monitoring sunflower crops in the early stages of germination is essential for profitable crop management. Traditional manual, ground-based methods are la-borious, subjective, […]

Claus-Peter Ruckemann 1, a), b), c)a) Unabhangiges Deutsches Institut fur Multi disziplinare Forschung (DIMF), Munster, Hiddenserborn, Germanyb) Universitat-Munster, Munster, Germanyc) Leibniz-Universitat-Hannover, Hannover, GermanyReceived February 28, 2025; accepted after peer review in revised form May 18, 2025 Abstract: The publication of this work delivers results of the conceptual knowledge analysis of new surveys, campaigns, and on-site

M.M. Hasan a, b and K. Hriczó aa)Department of Analysis, Faculty of Mechanical Engineering and Informatics, University of Miskolc, 3515 Miskolc, Hungaryb)Department of Mechanical Power Techniques, Basra Technological Technical Institute, Southern Technical University, Basra, IraqReceived 7 August, 2025; accepted in revised form 31 October, 2025 Abstract: This study evaluates the thermal performance of a dual-purpose

M. A. Sultanov a,b), E. N. Akimova 1,c,d), V. E. Misilov c,d), B. T. Sarsenov a,b), Y. Nurlanuly a,b)a) Institute of Mathematics and Mathematical Modeling, Pushkin Street 125, Almaty 050010, Kazakhstanb) Department of Mathematics, Faculty of Natural Science, Khoja Akhmet Yassawi International Kazakh-Turkish University, B. Sattarhanov Street 29, Turkestan 160200, Kazakhstanc) Krasovskii Institute of Mathematics

E. N. Akimova 1,a,b), V. E. Misilov a,b), A. V. Sosnovsky b)a) Krasovskii Institute of Mathematics and Mechanics, S. Kovalevskaya Street 16, Ekaterinburg 620077, Russiab) Institute of Radioelectronics and Information Technology, Ural Federal University, Mira Street 19, Ekaterinburg 620002, RussiaReceived October, 2025; accepted in revised form October, 2025 Abstract: This work is devoted to the

A. I. SaiedMathematical Institute, Slovak Academy of Sciences, Gresakova 6, 040 01, Kosice, Slovakia. Abstract: The main objective of this work is to give several dynamic inequalities of Hardytype on time scales which represent the unified approach of the classical integral and discrete inequalities. These results include a new reformulation of Hardy-type inequality which is

A. Tanougast and K. HriczoInstitute of Mathematics, Faculty of Mechanical Engineering and Informatics, University of Miskolc, Miskolc-Egyetemvaros, H–3515, HungaryReceived 7 August, 2025; accepted in revised form 31 October, 2025 Abstract: The corrugated channels are common passive heat transfer enhancement methods in many applications. For better heat transfer, this channel could be improved further with another

Z.Ali and G. BognárInstitute of Machine and Product Design, Faculty of Mechanical Engineering and Informatics, University of Miskolc, 3515-Egyetemváros, Miskolc, Hungary Abstract: Hull surface roughness, resulting from fouling or coating degradation, significantly increases hydrodynamic resistance, leading to higher fuel consumption and greenhouse gas emissions. This study investigates the impact of uniform full‐hull roughness on the