1. Effect of residual stresses on the fatigue stress range of a pre-deformed stainless steel AISI 316L exposed to combined loadingDarko Jagarinec, Nenad Gubeljak, 2024, izvirni znanstveni članek Opis: AISI 316L austenitic stainless steel is utilized in various processing industries, due to its abrasion resistance, corrosion resistance, and excellent properties over a wide temperature range. The physical and mechanical properties of a material change during the manufacturing process and plastic deformation, e.g., bending. During the combined tensile and bending loading of a structural component, the stress state changes due to the residual stresses and the loading range. To characterize the component’s stress state, the billet was bent to induce residual stress, but a phase transformation to martensite also occurred. The bent billet was subjected to combined tensile–bending and fatigue loading. The experimentally measured the load vs. displacement of the bent billet was compared with the numerical simulations. The results showed that during fatigue loading of the bent billet, both the initial stress state at the critical point and the stress state during the dynamic loading itself must be considered. Analysis was demonstrated only for one single critical point on the surface of the bent billet. The residual stresses due to the phase transformation of austenite to martensite affected the range and ratio of stress. The model for the stress–strain behaviour of the material was established by comparing the experimentally and numerically obtained load vs. displacement curves. Based on the description of the stress–strain behaviour of the pre-deformed material, guidelines have been provided for reducing residual tensile stresses in pre-deformed structural components.
Ključne besede: metastable austenitic stainless steel, fatigue, residual stress, phase transformation
Objavljeno v DKUM: 28.11.2024; Ogledov: 0; Prenosov: 2
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2. The role and meaning of the digital transformation as a disruptive innovation on small and medium manufacturing enterprisesVasja Roblek, Maja Meško, Franci Pušavec, Borut Likar, 2021, izvirni znanstveni članek Opis: The research reported in this paper explores the impact of digital transformation as a disruptive innovation on manufacturing SMEs. The research is based on a qualitative Delphi study encompassing 49 experts from eleven EU countries. The paper aims to demonstrate how disruptive innovations affect organizational changes and determine critical factors in organizations that impact the initiating and promoting R&D of disruptive innovation. We discovered that disruptive innovations impact product/process development methods, new production concepts, new materials for products, and new organization plans. Additionally, we identified organizational changes related to the development and use of disruptive innovations in the future. We also indicate how disruptive innovations influence social and technological changes in the organizational environment. The analysis also disclosed three main groups of disruptive innovations and their impact on future smart factory development, namely the following: technological changes, the emergence of innovative products, business models and solutions and organizational culture as one of the crucial key success factors. The analysis also examined the enablers of the successful development/introduction of disruptive innovations, wherein internal and external factors were determined. Additionally, we presented obstacles and the approaches necessary to mitigate them. We can conclude from the findings that in the timeframe of 5–10 years, only the SME that uses/develops disruptive innovations will survive in the market. However, the companies do not always have a clear idea of the meaning of disruptive innovations. Therefore, it is important to set clear goals regarding the achievement of disruptive innovations in companies. It is also necessary to creatively apply presented instruments enabling improvement of organizational changes and apply some additional concepts, which we have suggested.
Ključne besede: digital transformation, disruptive innovation, Industry 4.0, Delphi study, SME, smart factory
Objavljeno v DKUM: 11.10.2024; Ogledov: 0; Prenosov: 6
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3. Achieving Environmental sustainability through theadoption of industry 4.0 : an exploratory case study withinthe information technology industryMohamed El Merroun, Istvan Janos Bartók, Osama Alkhlaifat, 2024, izvirni znanstveni članek Opis: In the present-day competitive business landscape, integrating Industry 4.0 has transitioned from a choice to a necessity for companies striving to maintain their edge. Given the automation functions of IoT, the data management and transformation capabilities of AI, and the traceability benefits provided by Blockchain, this imperative is now more evident than ever. While widespread interest in Industry 4.0 is prevalent, the uncertainties surrounding the implementation process pose notable challenges. For this reason, in this paper, we present a single case study of a firm that operates in the information technology market to showcase the implementation process and how they overcome the challenges of digital transformation. Furthermore, the effect of this implementation on environmental sustainability experienced by the company and three of its customers was discussed.
Ključne besede: industry 4.0, artificial intelligence, environmental sustainability, digital transformation
Objavljeno v DKUM: 01.10.2024; Ogledov: 0; Prenosov: 5
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4. Multi-attribute assessment of digital maturity of SMEsMirjana Kljajić Borštnar, Andreja Pucihar, 2021, izvirni znanstveni članek Opis: Small and medium-sized enterprises (SMEs) need to keep pace with large enterprises, thus they need to digitally transform. Since they usually lack resources (budget, knowledge, and time) many countries have their support environment to help SMEs in this endeavor. To be able to ensure the right kinds of support, it is crucial to assess the digital maturity of an enterprise. There are many models and assessment tools for digital maturity, however, they are either theoretical models, partial, vendor oriented, or suited for large enterprises. In this paper, we address the problem of assessing digital maturity for SMEs. For this purpose, we developed a multi-attribute model for assessment of the digital maturity of an SME. We followed the design science research approach, where the multi-attribute model is considered as an IT artifact. Within the design cycle, the decision expert (DEX) methodology of a broader multi-attribute decision making methodologies was applied. The developed model was validated by a group of experts and upgraded according to their feedback and finally evaluated on seven real-life cases. Results show that the model can be used in real business situations.
Ključne besede: digital transformation, digital maturity assessment, multi-attribute model, small and medium-sized enterprises
Objavljeno v DKUM: 07.08.2024; Ogledov: 108; Prenosov: 13
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5. Implementation of the digital sales channel in the coatings industryEva Krhač Andrašec, Marjan Senegačnik, Benjamin Urh, Tomaž Kern, 2021, izvirni znanstveni članek Opis: The development process in the coatings industry can be shortened by digital transformation, and its costs can be reduced using a technical enabler. However, formulators need up-to-date and comprehensive data on existing and potential ingredients to develop the formulation. We were curious about how to supply formulators with data. The idea was that suppliers of ingredients provide data using the “common enabling technology”. We hypothesize that direct data entry compensates suppliers because they can shorten the sales process and increase sales. We used a survey to select key sales channels in the industry. Detailed process models were designed using structured interviews. We analyzed models using structural and operational indicators. Finally, we formed a new digital sales process and verified it. The results show that the digitally formatted sales process can be shortened by up to 32%. Simultaneously, more potential customers can be accessed using the common technology. Existing sales channels would not be closed down. Nevertheless, the digital sales channel is expected to prove its worth over time and gradually increase its share. The suppliers of ingredients can thus avoid a radical process transformation and the immediate integration of additional information technology into the company information system in such an evolutionary way.
Ključne besede: digital sales channel, process analyses and improvement, digital transformation, technical enabler, coatings industry, process simulation
Objavljeno v DKUM: 06.08.2024; Ogledov: 103; Prenosov: 10
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6. 37th Bled eConference - Resilience Through Digital Innovation: Enabling the Twin Transition : June 9 – 12, 2024, Bled, Slovenia, Conference Proceedin2024, zbornik Opis: The Bled eConference, organised by the University of Maribor, Faculty of Organizational Sciences, has been shaping electronic interactions since 1988. The theme of the 37th conference is "Resilience through digital innovation: enabling the twin transition". The theme addresses the critical convergence of digital transformation and sustainability, in line with the European Commission’s top priorities and policy initiatives. At the conference, we aim to highlight the opportunities of digital technologies that can contribute to building organisational and societal resilience, with a focus on social and environmental goals. The papers in this conference proceedings explore a range of topics including the opportunities and challenges of the twin transition, emerging technologies, artificial intelligence and data science, decision analytics for business and societal changes, digital innovation and business models, restructured work and the future workplace, digital health, digital ethics, digital education, smart sustainable cities, digital consumers, and the digital transformation of the public sector.
Ključne besede: resilience, digital transformation, innovation, twin transition, sustainability, digital transition, green transition
Objavljeno v DKUM: 28.05.2024; Ogledov: 337; Prenosov: 52
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7. A new transformation technique for reducing information entropy : a case study on greyscale raster imagesBorut Žalik, Damjan Strnad, David Podgorelec, Ivana Kolingerová, Luka Lukač, Niko Lukač, Simon Kolmanič, Krista Rizman Žalik, Štefan Kohek, 2023, izvirni znanstveni članek Opis: This paper proposes a new string transformation technique called Move with Interleaving (MwI). Four possible ways of rearranging 2D raster images into 1D sequences of values are applied, including scan-line, left-right, strip-based, and Hilbert arrangements. Experiments on 32 benchmark greyscale raster images of various resolutions demonstrated that the proposed transformation reduces information entropy to a similar extent as the combination of the Burrows–Wheeler transform followed by the Move-To-Front or the Inversion Frequencies. The proposed transformation MwI yields the best result among all the considered transformations when the Hilbert arrangement is applied.
Ključne besede: computer science, algorithm, string transformation, information entropy, Hilbert space filling curve
Objavljeno v DKUM: 22.05.2024; Ogledov: 160; Prenosov: 9
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8. Small and medium-sized enterprises in the digital age : understanding characteristics and essential demandsBarbara Bradač Hojnik, Ivona Huđek, 2023, izvirni znanstveni članek Opis: The article explores the implementation of digital technology in small and medium-sized Slovenian enterprises (SMEs), with a focus on understanding existing trends, obstacles, and necessary support measures during their digitalization progress. The surveyed companies mainly rely on conventional technologies like websites and teamwork platforms, emphasizing the significance of strong online communication and presence in the modern business world. The adoption of advanced technologies such as blockchain is limited due to the perceived complexity and relevance to specific sectors. This study uses variance analysis to identify potential differences in the digitalization challenges faced by companies of different sizes. The results indicate that small companies face different financial constraints and require more differentiated support mechanisms than their larger counterparts, with a particular focus on improving digital competencies among employees. Despite obtaining enhancements such as elevated operational standards and uninterrupted telecommuting via digitalization, companies still face challenges of differentiation and organizational culture change. The study emphasizes the importance of recognizing and addressing the different challenges and support needs of different-sized companies to promote comprehensive progress in digital transformation. Our findings provide important insights for policymakers, industry stakeholders, and SMEs to formulate comprehensive strategies and policies that effectively address the diverse needs and challenges of the digital transformation landscape.
Ključne besede: digital transformation, digital technology adoption, small and medium-sized enterprises (SMEs), digitalization challenges, digitalization support
Objavljeno v DKUM: 11.04.2024; Ogledov: 299; Prenosov: 17
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9. Leadership and managerial challenges to ensure agile management as a method to enable business success : a Delphi study of the Slovenian health organisationsVasja Roblek, Vlado Dimovski, Kristjan Jovanov Oblak, Maja Meško, Judita Peterlin, 2024, izvirni znanstveni članek Opis: Purpose
This study aims to apply the Delphi method to explore the possibilities for implementing agility management concepts in Slovenian health-care organisations. Design/methodology/approach
The research is based on a qualitative Delphi study encompassing 15 employees in different Slovenian health-care organisations.
Findings
Slovenian health-care organisations need to be more agile currently. For this reason, it is necessary to begin with organisational changes and organisational learning concepts to educate employees about the meaning and content of agile processes. It is essential to ensure that accepting employee mistakes and offering help to employees becomes normal practice, and it is necessary to ensure the greater trust of the management towards the employees.
Originality/value
The research empowers health-care professionals with new management and leadership concepts, such as agile management, sustainable leadership and leadership development methods in health care.
Ključne besede: entrepreneurship, leadership, company performance, business efficiency, agile management, delphi study, health-care organisations, organisational transformation, Slovenia, change management, health services sector
Objavljeno v DKUM: 08.04.2024; Ogledov: 301; Prenosov: 17
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10. AOP-based transformation of abacavir in different environments: evolution profile of descyclopropyl-abacavir and in silico toxicity assessment of the main transformation productsEleni Evgenidou, Konstantina Vasilopoulou, Lelouda-Athanasia Koronaiou, George Z. Kyzas, Dimitrios Bikiaris, Dimitra A. Lambropoulou, 2023, izvirni znanstveni članek Ključne besede: abacavir, antiviral drug, AOPs, transformation products, ECOSAR, evolution profiles
Objavljeno v DKUM: 05.04.2024; Ogledov: 276; Prenosov: 13
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