Vol. 137 (2026)

PREFACE

The papers included in this issue have been arranged to reflect a coherent progression – from regulatory and sustainability challenges in the maritime and logistics sectors, through engineering and technological research, to broader market and consumeroriented perspectives.

The paper “Remarks on the Evaluation of the Correct Implementation of the ISM Code in International Shipping” focuses on the challenges of implementing the ISM Code in international maritime transport, highlighting the interdependencies between legal requirements, ship operational safety, and management practices. The issues of environmental and organizational safety addressed in the paper are particularly significant in the context of the globalization of maritime transport and the growing social expectations toward the shipping industry.

Two papers published in the current issue of SJ GMU address environmental protection in the context of sustainable development in both the maritime sector and the logistics and warehousing sector. “Navigating Towards Sustainability: A Review of Green Shipping Practices” outlines the opportunities and benefits of adopting green shipping, emphasizing the role of propulsion systems and digital monitoring technologies. The authors point out that, on the one hand, integrating innovative technologies and green infrastructure programs is crucial and, on the other, compliance with international maritime regulations and shipping practice standards is equally important. In this context, collaboration with marine engineers and port authorities plays a key role in implementing future green shipping strategies.

The second of these papers, “Green Warehouses – Strategies for Reducing the Carbon Footprint in Logistics,” prepared by students of Gdynia Maritime University in the field of Transport, addresses the problem of reducing carbon emissions and mitigating the negative environmental impact of warehouse logistics. The authors analyze the use of renewable energy sources and strategies for optimizing energy consumption. They highlight not only the environmental aspects but also the financial benefits of implementing intelligent energy management systems, optimizing waste management, and utilizing modern energy-efficient technologies.

The paper “Comparison of the Mechanical Properties of Materials Used in 3D Printing Technology” describes a study devoted to analyzing the impact of filament material type and infill density on the strength parameters of components manufactured using the FFF method. It presents the results of experimental research on PC and PCABS materials, including tensile testing, determination of Young’s modulus, and strain analysis. The results make it possible to determine the relationships between the internal structure of printed parts and their mechanical properties, which is of considerable importance in the design of machine parts and structural components.

The paper “Computation of Hydrophobicity Parameter (EACN) of Oil Phase Ingredients Essential for Predicting Properties of Microemulsions Using HLD-NAC Theory” presents an innovative computational method for determining the hydrophobicity parameter EACN for oil compounds used in emulsions and microemulsions. The authors developed a group-contribution-based model that enables precise prediction of EACN values based on the chemical structure of the molecule. The proposed approach constitutes an important tool supporting the rational design of cosmetic and pharmaceutical formulations within the HLD-NAC theoretical framework.

The final paper, “Consumer Awareness and Preferences in the Polish Pro-Health Products Market – Evidence from a Survey Study,” addresses a current and socially significant issue concerning consumer awareness and the purchasing preferences in the Polish market for health-promoting products. The paper provides valuable implications for producers and marketers of functional foods, and serves as a starting point for further research into the segmentation of the health-oriented products market.

Agnieszka Blokus-Dziula

Agnieszka Rybowska

Robert Starosta