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6th International Conference En-Re Energy & Responsibility : Book of Extended Abstracts

Abstract: In the context of escalating climate challenges, the EnRe conference is dedicated to exploring pathways to climate neutrality and the sustainable green transition. The conference is focused on the development and implementation of innovations supporting the transformation of energy systems, industrial systems, and living systems, all with the goal of creating a sustainable future with net-zero emissions. The conference brings together experts, researchers, policymakers, and business leaders to share their experiences, research, and visions. The aim of the conference is to foster collaboration and exchange of ideas, and to collectively develop comprehensive approaches and strategies for achieving climate neutrality. This conference is not just a knowledge exchange, but also a platform for encouraging concrete actions that will ensure a greenerand more sustainable future for our next generations to come.
Keywords: alternative energy systems, dynamic tariffing, electrical machines and drives, energy conversions, financing energy projects, nuclear energy, conventional energy systems, climate changes - climate pan, mathematical methods in engineering, micro and nano energy, low-carbon technologies and strategies, renewable energy technologies heating and cooling systems, smart buildings, cities and networks, policies and strategies for renewable energy sources, energy efficiency and the climate
Published in DKUM: 17.05.2024; Views: 11; Downloads: 0
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Special issue on “Process design and sustainable development”
Peter Glavič, 2023, preface, editorial, afterword

Keywords: sustainability, engineering, design
Published in DKUM: 02.04.2024; Views: 75; Downloads: 2
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From nature to lab : sustainable bacterial cellulose production and modification with synthetic biology
Vid Potočnik, Selestina Gorgieva, Janja Trček, 2023, review article

Abstract: Bacterial cellulose (BC) is a macromolecule with versatile applications in medicine, pharmacy, biotechnology, cosmetology, food and food packaging, ecology, and electronics. Although many bacteria synthesize BC, the most efficient BC producers are certain species of the genera Komagataeibacter and Novacetimonas. These are also food-grade bacteria, simplifying their utilization at industrial facilities. The basic principles of BC synthesis are known from studies of Komagataeibacter xylinus, which became a model species for studying BC at genetic and molecular levels. Cellulose can also be of plant origin, but BC surpasses its purity. Moreover, the laboratory production of BC enables in situ modification into functionalized material with incorporated molecules during its synthesis. The possibility of growing Komagataeibacter and Novacetimonas species on various organic substrates and agricultural and food waste compounds also follows the green and sustainable economy principles. Further intervention into BC synthesis was enabled by genetic engineering tools, subsequently directing it into the field of synthetic biology. This review paper presents the development of the fascinating field of BC synthesis at the molecular level, seeking sustainable ways for its production and its applications towards genetic modifications of bacterial strains for producing novel types of living biomaterials using the flexible metabolic machinery of bacteria.
Keywords: acetic acid bacteria, bacterial cellulose, sustainable production, agricultural waste, food waste, genetic engineering, synthetic biology, biomaterial, Komagataeibacter, Novacetimonas
Published in DKUM: 28.03.2024; Views: 120; Downloads: 12
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Cotton woven fabrics as protective polymer materials against solar radiation in the range of 210–1200 nm
Polona Dobnik-Dubrovski, Darinka Fakin, Alenka Ojstršek, 2023, original scientific article

Abstract: The proposed paper describes the influence of woven fabric constructional parameters (type of weave, relative fabric density) and colouration (obtained by eco-friendly dyeing) on the solar transmittance of cotton woven fabrics in the range of 210-1200 nm. The cotton woven fabrics in their raw state were prepared according to Kienbaum's setting theory, at three levels of relative fabric density and three levels of the weave factor, and then exposed to the dyeing process with natural dyestuffs (beetroot, walnut leaves). After ultraviolet/visible/near-infrared (UV/VIS/IRA) solar transmittance and reflection in the range of 210-1200 nm were recorded, the influence of the fabric construction and colouration were analysed. The guidelines for fabric constructor were proposed. The results show that the walnut-coloured satin samples at the third level of relative fabric density provide the best solar protection in the whole solar spectrum. All the tested eco-friendly dyed fabrics offer good solar protection, while only raw satin fabric at the third level of relative fabric density can be classified as solar protective material with even better protection in IRA region than some coloured samples.
Keywords: fabric engineering, solar protection, woven fabric structure, natural dyeing of polymer material, testing
Published in DKUM: 15.02.2024; Views: 181; Downloads: 2
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Identifying key activities, artifacts and roles in agile engineering of secure software with hierarchical clustering
Anže Mihelič, Tomaž Hovelja, Simon Vrhovec, 2023, original scientific article

Abstract: Different activities, artifacts, and roles can be found in the literature on the agile engineering of secure software (AESS). The purpose of this paper is to consolidate them and thus identify key activities, artifacts, and roles that can be employed in AESS. To gain initial sets of activities, artifacts, and roles, the literature was first extensively reviewed. Activities, artifacts, and roles were then cross-evaluated with similarity matrices. Finally, similarity matrices were converted into distance matrices, enabling the use of Ward’s hierarchical clustering method for consolidating activities, artifacts, and roles into clusters. Clusters of activities, artifacts, and roles were then named as key activities, artifacts, and roles. We identified seven key activities (i.e., security auditing, security analysis and testing, security training, security prioritization and monitoring, risk management, security planning and threat modeling; and security requirements engineering), five key artifacts (i.e., security requirement artifacts, security repositories, security reports, security tags, and security policies), and four key roles (i.e., security guru, security developer, penetration tester, and security team) in AESS. The identified key activities, artifacts, and roles can be used by software development teams to improve their software engineering processes in terms of software security.
Keywords: secure software development, security engineering, agile methods, agile development, software development, software engineering, software security, application security, cybersecurity, cyber resilience
Published in DKUM: 29.11.2023; Views: 300; Downloads: 8
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Agile development of secure software for small and medium-sized enterprises
Anže Mihelič, Simon Vrhovec, Tomaž Hovelja, 2023, original scientific article

Abstract: Although agile methods gained popularity and became globally widespread, developing secure software with agile methods remains a challenge. Method elements (i.e., roles, activities, and artifacts) that aim to increase software security on one hand can reduce the characteristic agility of agile methods on the other. The overall aim of this paper is to provide small- and medium-sized enterprises (SMEs) with the means to improve the sustainability of their software development process in terms of software security despite their limitations, such as low capacity and/or financial resources. Although software engineering literature offers various security elements, there is one key research gap that hinders the ability to provide such means. It remains unclear not only how much individual security elements contribute to software security but also how they impact the agility and costs of software development. To address the gap, we identified security elements found in the literature and evaluated them for their impact on software security, agility, and costs in an international study among practitioners. Finally, we developed a novel lightweight approach for evaluating agile methods from a security perspective. The developed approach can help SMEs to adapt their software development to their needs.
Keywords: secure software development, security engineering, agile, small and medium sized enterprises, software development management, security
Published in DKUM: 29.11.2023; Views: 310; Downloads: 5
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Employing AI Tools in Tourism: A Qualitative Study of Social Media Content Generation in a Work Environment : a qualitative study of social media content generation in a work environment
Tarik Džinić, 2023, undergraduate thesis

Abstract: In the midst of industries being reshaped by the emergence of technologies our attention is drawn to the increasing trend of AI and its potential integration, in the work environment. At present, we recognise the swift evolution of technology and the necessity to align with current trends. In this thesis we delve into the world of content creation in tourism social media marketing. We specifically focus on how AI tools, like ChatGPT transform the way we generate content across social media platforms. Through the thesis we highlight the importance of content marketing in boosting brand visibility and engagement. We further explore how generative AI models can create content, enhance personalization and streamline marketing strategies. Additionally, we investigate the newly emerging field of prompt engineering, which focuses on improved interactions with generative AI models. While AI tools offer efficiency, we emphasize the need to strike a balance between automation and human driven creativity. In the evolving landscape of digital marketing, this study contributes insights into leveraging AI-powered content creation for enriching the tourism industry's social media endeavours.
Keywords: Content creation, artificial intelligence, ChatGPT, prompt engineering, social media marketing
Published in DKUM: 09.10.2023; Views: 548; Downloads: 66
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