International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Table of Contents

• TECHNOLOGICAL BASIS OF “INDUSTRY 4.0”

  • Overview of Generative AI Models in the Software Industry

    • Andrii Holovko
    • Artur Dovbysh
    • Vladyslav Holdovankyi
    • Vladyslav Alieksieiev

    pg(s) 340-342

    • Abstract
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    Generative AI models have started to transform the software industry, driving innovation, and automating tasks previously deemed complex. This overview delves into the evolution, applications, and potential of these models, highlighting their capability to create novel content, enhance software development processes, and forecast industry trends. As these models continue to mature, the software industry stands on the cusp of a redefined future where human-machine collaboration will shape ground-breaking advancements.

  • Application of Blockchain for Hydrogen-Related Data from Internet of Thing Devices Equipped with Hydrogen Sensors

    • Takeshi Tanaka
    • Satoru Tada
    • Masayuki Yamauchi
    • Koji Kakugawa
    • Katia Vutova

    pg(s) 343-346

    • Abstract
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    The Internet of Things (IoT) has seamlessly integrated more than a billion intelligent, interconnected devices into our world today, and is expected to accommodate soon hundreds of billions more such devices. This imminent proliferation heralds a profound transformation that stands to influence the electronics industry and many other sectors. Furthermore, integrating blockchain technology into IoT can impart genuine trust in the collected data. Hence, our research endeavors to harness this potential by applying it to hydrogenrelated data, which are expected to be critical in realizing a carbon-neutral society.
    Specifically, our attention is directed toward utilizing an initial blockchain system to securely store data obtained from IoT devices equipped with hydrogen sensors that can communicate through Sigfox technology.

• DOMINANT TECHNOLOGIES IN “INDUSTRY 4.0”

  • Nano-structured Electrode Materials with Reduced Amount of Platinum Aimed for Hydrogen Evolution. Part II: Effect of MWCNTs modification

    pg(s) 347-350

    • Abstract
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    Direct Metal Laser Sintering (DMLS) is a revolutionary technology that allows a production of fully functional metal parts directly from a 3D CAD data, eliminating the investment to production tools and technologies which brings considerable cost and time savings. Metal parts made by DMLS technology are fully comparable with casted or machined parts. A range of application of DMLS technologies is very wide – from prototypes, through short-run production to final products. Advantages of DMLS technology are arising along with complexity of parts – more complex geometry of parts (in terms of shape and occurrence of the detail) make DMLS technology even more economically effective.

  • Wetting coatings on TiO2 based glasses for photovoltaic application and contact angle measurements

    • Stancho Yordanov
    • Mihail Georgiev
    • Silviya Simeonova
    • Bojidar Jivov
    • Vladimir Petkov
    • Mihela Aleksandrova

    pg(s) 351-354

    • Abstract
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    They have been conducted on ellipsometry and contact angles. The contact angles of a surface coating on glasses applied in photovoltaics were measured. This study used a DSA 100-Expert (Krüss GmbH, Germany) to measure contact angles on glass substrates. Contact angles were measured using the DSA 100-Expert tilt table accessory to identify both advancing and receding contact angles. A drop of deionized water is deposited on the glass substrate and then the table is tilted at a constant rate of 5 degrees per minute, to a tilt angle of 90 degrees.

  • IoT related security issues and black-box testing experiences in a smart lighting system

    • Gábor Arányi
    • Veronika Szücs

    pg(s) 355-358

    • Abstract
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    Automating and delegating daily tasks is a growing trend. Digital devices and the Internet of Things have boosted this development. This has transformed machine-to-machine (M2M) communication, industrial production, and control solutions as well as smart homes and consumer devices. IoT infrastructure and device networking require scalable, secure, efficient, resilient, and widely supported application layer communication protocols. It is vital to note that IoT infrastructure development prioritizes service implementation and functionality. However, IT security vulnerabilities and system reinforcement are typically neglected. Our present research focuses on a black-box vulnerability evaluation during smart street lighting system development. The goal is to raise awareness of the importance of safety-conscious growth.

  • Engineered nanomaterials based on graphene oxide and their potentials for combined cancer therapies

    • Kamelia Hristova-Panusheva
    • Trayana Kamenska
    • Zlatina Gospodinova
    • Natalia Krasteva

    pg(s) 359-361

    • Abstract
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    Graphene oxide, owing to its unique physicochemical properties, has established itself as a versatile platform with applications ranging from drug delivery to medical imaging. The modification of graphene oxide has the potential to enhance crucial properties such as near-infrared (NIR) adsorption capacity, water dispersity, and cytotoxicity. This paper aims to discuss the potential of unmodified graphene oxide and polyethylene glycol (PEG)-modified graphene oxide nanoparticles as responsive systems to NIR in the context of combined photothermal and chemotherapy. The focus is on their application for treating colorectal and hepatocellular cancer cells, highlighting their promise in integrated cancer therapies.

• BUSINESS & “INDUSTRY 4.0”

  • Design, production, and evaluation of product quality for electric vehicle parts

    • Ilo Bodi
    • Erald Piperi
    • Antonio Qyrsaqi
    • Llukan Apostoli

    pg(s) 362-364

    • Abstract
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    The final products that emerge from innovative production processes for different electric vehicle parts are Aluminum profiles of all designs for applications such as doors, structural and semi-structural parts, etc. The production line of these products is automated, where every work process, is controlled by CNC panels in which they are implemented and programmed with different software. The automation of the production processes tends to improve the quality of the product and tends to optimize the production process to minimize and decrease production waste. This paper presents the production process of different electric vehicle parts and how their quality is evaluated by using PFMEA analysis according to the quality standards. The implementation of quality standards resulted in product quality and enterprise quality management system improvement.

  • Impact of e-commerce on the logistics sector

    • Katina Valeva
    • Valentina Alexieva-Nikolova

    pg(s) 365-369

    • Abstract
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    The introduction of digital technologies into modern life has turned e-commerce into a global industry, having a significant impact on the logistics sector and supply chain management. The Covid-19 pandemic has contributed to the rapid growth of online commerce, creating additional challenges for companies in the logistics sector. The purpose of this report is to examine the trend in the development of e-commerce and its relationship with the logistics sector. The results of a study related to the differences in costs in electronic and traditional commerce are presented.

• SOCIETY & ”INDUSTRY 4.0”

  • Climate change and its impact on long-term sustainability of the road infrastructure in Bulgaria

    • Stoyanka Ivanova
    • Simeon Matev
    • Evelina Ivanova

    pg(s) 370-373

    • Abstract
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    Climate changes are having an increasingly strong impact on the sustainability and safety of the road infrastructure in Bulgaria. This paper analyzes how changes in climatic conditions over the last three decades affect the condition and functioning of the road network. The aim is to identify critical factors and propose methodological guidelines for design and maintenance that include adaptive strategies to address climate risks. The work emphasizes the need for a complex multidisciplinary approach combining scientific research, strategic planning, and practical implementation.

  • Analysis of available climate data reflecting the impact of climate change on the road infrastructure in Bulgaria

    • Simeon Matev
    • Stoyanka Ivanova
    • Evelina Ivanova

    pg(s) 374-377

    • Abstract
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    The article presents an in-depth analysis of the data related to the assessment of the impact of climate change on the road infrastructure in Bulgaria. It is necessary to systematically collect, store, and analyze territorial data on the dynamics of changes in various climatic factors such as temperature, snow cover, precipitation, winds, etc. The article examines the main sources of such information in Bulgaria, their limitations, and shortcomings. Identifying the needs and weaknesses in finding usable data is an important step on the way to building a strategy to solve this task.

  • The role of the green transition in ensuring societal security in Bulgaria

    • Antoaneta Simeonova
    • Angel Krumov

    pg(s) 378-380

    • Abstract
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    The Green Transition, aiming for a sustainable and eco-friendly future, plays a crucial role in ensuring societal security. As the world grapples with climate change and environmental degradation, the Green Transition offers a pathway to address these challenges while fostering societal cohesion and resilience. In Bulgaria, the Green Transition is not just an environmental endeavor but also a means to counter disinformation narratives and foreign authoritarian influence. This paper examines Bulgaria’s efforts in the Green Transition, its implications for societal security, and the challenges and opportunities it presents.