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Sončna energija - prožnost in odpornost energetske oskrbe : diplomsko delo univerzitetnega študijskega programa
Jerneja Peterlin, 2023, undergraduate thesis

Abstract: Trend dandanes na področju obnovljivih virov predstavljajo sončne elektrarne, katere lahko posameznikom prinesejo številne prednosti. Prvotna prednost, zaradi katere se ljudje odločajo zanje, je proizvodnja električne energije, ki omogoča samooskrbo gospodinjstva in zmanjšanje stroškov električne energije. Tehnično dovršen način vpeljave tovrstnega sistema lahko pokrije lastno rabo ali celo ustvari viške energije. V primerih viškov energije poznamo različne načine hranjenja oz. poslovanja z njimi. Razvit sistem hranilnikov in platforme izbranih podjetjih omogočajo posameznikom popolno samooskrbo z električno energijo. Tehnologija na področju fotovoltaike je že tako zelo razvita in ponuja posameznikom, da z različnimi komponentami ustvarijo maksimalno možno proizvedeno električno energijo. Torej z vidika ekonomičnosti je tovrstni sistem smiseln za vpeljavo v gospodinjstvo. Prav pa bi bilo, da bi se več ljudi posluževalo hranjenja presežkov energije z načinom vpeljave baterijskih hranilnikov. Ti namreč omogočajo samozadostnost gospodinjstva in praktično neodvisnost od omrežja. V praksi se ljudje najpogosteje poslužujejo samooskrbe z načinom net meteringa. Ta je zelo pogost, saj lahko viške energije sprostijo v omrežje, kadar pa ne ustvarijo zadosti energije za svoje potrebe, enostavno koristijo energijo iz omrežja. Prav tako pogost način prakse predstavlja prenos viškov na drugo lokacijo oziroma na odjemalca na drugem naslovu. Zaključimo lahko, da je trajnostna naložba v način oskrbe z obnovljivimi viri smiselna, saj lahko ob pravilni uporabi gospodinjstvu prinese številne prednosti.
Keywords: sončna elektrarna, fotovoltaika, viški energije, obnovljivi viri energije, trajnostna energija, samooskrba, hranilnik električne energije
Published in DKUM: 19.02.2024; Views: 26; Downloads: 3
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Assessment of environmental sustainability integration into higher education for future experts and leaders
Matevž Obrecht, Zane Feodorova, Maja Rosi, 2022, original scientific article

Abstract: The environmental and climate crisis is gaining priority among critical human concerns; therefore, environmental knowledge and sustainable solutions play a significant role and gaining global popularity as an academic discipline. Additionally, United Nations Sustainable Development Goal no. 4 acknowledges education's role in promoting sustainable development, sustainable lifestyles, human rights, social responsibility, circular economy, and greening our economy and society. In this paper new conceptual framework that focuses on systematically analyzing environmental sustainability integration in study programs and subjects is developed. The main aim is to reflect the conceptual basis of education related to environmental sustainability topics such as sustainable development, social responsibility, circular economy, ecology, environmental protection, and greening to boost future environmental management practices in industry and services. Defining the level of integration of environmental and sustainability-related topics is divided by research field classification and study cycles (BSc, MSc, PhD). The specific added value of the developed conceptual framework is reflected by defining cross-sections and inter-and trans-disciplinary of sustainability topics integrated within specific programs and subjects. The conceptual framework was tested by assessing 1051 programs in progress in Slovenia. It was revealed that the highest share of study programs has an intermediate level of environmental sustainability with 2–3 subjects (392 study programs). These are represented mainly by integrating environmental protection, ecology, and “greening” but less with circular economy and social responsibility. Significant differences among specific study programs and study fields reflect that young intellectuals will not be equally educated and qualified for future managerial challenges. Master students gain the best insight into core sustainability and environmental topics needed for future environmental managers.
Keywords: higher education institution, environmental sustainability, educating environmental expert, managing knowledge supply, environmental competence
Published in DKUM: 19.02.2024; Views: 27; Downloads: 1
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Integrating social dimensions into future sustainable energy supply networks
Matevž Obrecht, Yigit Kazancoglu, Matjaž Denac, 2020, original scientific article

Abstract: Environmental protection and sustainable development have become an inevitable trend in many areas, including the energy industry. The development of energy supply networks is strongly correlated with the economics of energy sources as well as ecological and socio-political issues. However, the energy supply network is often distant from the social perspective. This paper therefore combines examination of perceptions and awareness of general public (web-based questionnaire) and top energy experts (a Delphi survey) on the energy supply network and identifies their potential integration in energy supply decision making processes. The results showed that public should be better informed as well as integrated into designing energy supply network as the prosumers gain power and the energy suppliers will no longer dominate the market. Public actors are ready to shape sustainable energy supply and also willing to pay 5.8% more for a sustainable energy supply. The majority are prepared to invest in renewable energy supply network close to their place of residence. Another result is that the public is calling for a shift in priority towards more sustainable and socially friendlier energy supply rather than focusing mainly on the economic and technical perspectives.
Keywords: energy supply, supply networks, sustainable energy, public perception, social integration, supply chain management
Published in DKUM: 19.02.2024; Views: 37; Downloads: 0
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Sustainability orientation and focus in logistics and supply chains
Sebastjan Lazar, Dorota Klimecka-Tatar, Matevž Obrecht, 2021, original scientific article

Abstract: Sustainable development, logistics, and supply chain are being combined into three increasingly connected and topical global research areas. Therefore, this paper's novelty identifies and defines the priorities of the UN Sustainable Development Goals and sustainable development dimensions in supply-chain- and logistics-management-related studies in the last decade. Knowing logistics and supply chain sustainability focus and orientation is valuable information for researchers and managers to adapt and mitigate their business logistics according to the forecasted trends. The paper provides a systematic and comprehensive review of the literature and is based on 116 scientific papers published between 2010 and 2020 in 73 international journals in the Scopus and Web of Science databases. The study defines focus with integrating environmental, social, and economic sustainability for logistics- and supply-chain-related studies. It emphasizes primary and secondary links of investigated studies with 17 United Nations sustainable development goals. The bibliometric analysis also examined keyword relations. One of the main contributions is that economic sustainability was identified as the most represented one-dimensional sustainability focus. It was revealed that supply chain studies integrated all three sustainability dimensions more frequently (50.60%) than logistics studies, which were equally related to studying two- or three-dimensions of sustainability (39.39%). The most significant findings are also that studies were identified to be oriented primarily towards "responsible consumption and production", "industry, innovation, and infrastructure" and "affordable and clean energy" and secondary especially on "sustainable cities and communities".
Keywords: sustainable development goals, sustainable development, supply chain management, logistics
Published in DKUM: 19.02.2024; Views: 32; Downloads: 1
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Sustainable operations of last mile logistics based on machine learning processes
Jerko Oršič, Borut Jereb, Matevž Obrecht, 2022, original scientific article

Abstract: The last-mile logistics is regarded as one of the least efficient, most expensive, and polluting part of the entire supply chain and has a significant impact and consequences on sustainable delivery operations. The leading business model in e-commerce called Attended Home Delivery is the most expensive and demanding when a short delivery window is mutually agreed upon with the customer, decreasing possible optimizing flexibility. On the other hand, last-mile logistics is changing as decisions should be made in real time. This paper is focused on the proposed solution of sustainability opportunities in Attended Home Delivery, where we use a new approach to achieve more sustainable deliveries with machine learning forecasts based on real-time data, different dynamic route planning algorithms, tracking logistics events, fleet capacities and other relevant data. The developed model proposes to influence customers to choose a more sustainable delivery time window with important sustainability benefits based on machine learning to predict accurate time windows with real-time data influence. At the same time, better utilization of vehicles, less congestion, and fewer failures at home delivery are achieved. More sustainable routes are selected in the preplanning process due to predicted traffic or other circumstances. Increasing time slots from 2 to 4 h makes it possible to improve travel distance by about 5.5% and decrease cost by 11% if we assume that only 20% of customers agree to larger time slots.
Keywords: supply chain management, real-time, home delivery, business modeling, e-commerce, time window
Published in DKUM: 19.02.2024; Views: 29; Downloads: 4
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Rationalisation of costs in the collection, segregation and transport of municipal waste
Paweł Zając, Ivona Bajor, Matevž Obrecht, Stanisław Ejdys, 2023, original scientific article

Abstract: The article contains answers to three "why" questions: - why the waste management system still does not bring the expected results, and the Polish state is one of the lowest-ranking in the European score regarding the amount of segregated waste; - why the sale of selected secondary raw materials and their material reuse in production processes do not cover the costs related to waste management; - why it does not bring additional profits. The article is based on research conducted in Wroclaw from 1998 to 2018. There is a cost model that can be adapted to similar cases. The article deals with removing organisational and/or technical reasons causing the stagnation of selective waste collection.
Keywords: waste, mixed, sorting, fee, management
Published in DKUM: 16.02.2024; Views: 23; Downloads: 6
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Supply chain management mitigation to climate change in three selected industrial sectors
Maja Bašić, Špela Kovše, Andraž Opačić, Marijana Pećarević, Matevž Obrecht, 2023, original scientific article

Abstract: As the world economy is growing and globalisation is on the rise, climate change and its effects on the planet Earth are also increasing. But climate changes do not disturb only nature; they also affect businesses and their supply chains. Many companies have recently recognised the positive impacts of green and circular supply chain management practices. Supply chains that deliver products from around the world are increasingly exposed to the impacts of a changing climate and scarce resources. In this research, it was determined how climate change impacts supply chains in the food, automobile, and energy industry sectors. Furthermore, we wanted to find out if and how the management of supply chains is altered to adapt to the business environment which is more and more affected by environmental changes.
Keywords: climate change adaptation and mittigation, circular economy, sustainable developement, supply chain management
Published in DKUM: 16.02.2024; Views: 42; Downloads: 3
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Souporaba električnih avtomobilov v urbanih območjih kot primer dobre prakse delitvene ekonomije : diplomsko delo univerzitetnega študijskega programa
Nikolina Jović, 2023, undergraduate thesis

Abstract: Delitvena ekonomija, v kateri več posameznikov souporablja eno dobrino, je čedalje bolj pomembna tudi v logistiki. S pomočjo logistike se izmenjujejo informacije in fizična sredstva, vse z namenom znižanja logističnih stroškov, povečanja zasedenosti transportnih vozil in boljšega izkoristka skladiščnega prostora. To velja tudi za souporabo vozil na primeru Italije in Srbije, kjer je cilj čim večja uporaba vozil v urbanih območjih, da bi se izognili negativnim učinkom. Namen diplomskega dela je predstaviti prednosti delitvene ekonomije pri souporabi električnih avtomobilov v urbanih območjih ter raziskati platforme in razširjenost uporabe električnih avtomobilov v izbranih državah. Raziskali bomo ponudnike za tovrstno storitev v izbranih državah in v empiričnem delu analizirali ter primerjali te ponudnike glede na različne parametre (stroški, dostopnost, pogoji uporabe itd.). Za ponazoritev primera dobre prakse smo izbrali Italijo, in sicer mesto Milano, kjer obstajajo številne platforme, ki ponujajo izključno električna vozila. Za razliko od Italije pa je situacija v Srbiji precej drugačna, saj je manj ponudnikov tovrstnih storitev in so te omejene na najem avtomobila izključno za cel dan ali več dni ter v ponudbi nimajo električnih vozil.
Keywords: delitvena ekonomija, souporaba, električni avtomobili, logistika, urbano območje
Published in DKUM: 15.02.2024; Views: 34; Downloads: 4
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Prenova poslovanja in razvoj novega poslovnega modela na osnovi okoljskih izboljšav v okrbovalni verigi : magistrsko delo
Evelina Jovanovič, 2023, master's thesis

Abstract: V 21. stoletju je potrebno spremembam slediti hitreje kot nekoč. Način življenja ter podnebne spremembe so nas prisilile, da sprejemamo nove okoljske dejavnike, ki so na vsakodnevni ravni okolju prijaznejši. V veliki meri so se morala oz. se bodo morala novemu trajnostnemu razvoju prilagoditi vsa podjetja, tako makro kot mikro. Razlogov je več. Najpomembnejša je seveda skrb za okolje, drugi pa tudi dodana vrednost poslovanja ter nove konkurenčne prednosti in nove poslovne priložnosti. Vodilo vsakega podjetja bi moralo biti, kaj lahko storimo oz. kakšen vložek je potreben za boljši in učinkovitejši trajnostni razvoj v podjetju v celotni oskrbni verigi ter si zadati trajnostne cilje v družbenem in okoljskem vidiku. V našem magistrskem delu se bomo zato osredotočili na mikropodjetje Papirnica Ma-ar, kjer bomo poizkušali s poslovnim modelom Canvas, spletno anketo ter sistemom ozelenitve celotno poslovanje preusmeriti na trajnejše in s tem podjetju zagotoviti večjo konkurenčnost ter večjo dodano vrednost na njenem področju poslovanja.
Keywords: trajnostno poslovanje, okoljski vidiki, zeleni certifikati, ogljični odtis, trajnostni razvoj, taksonomija, vplivi na okolje, poslovni model Canvas
Published in DKUM: 13.02.2024; Views: 55; Downloads: 7
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How much sustainable knowledge will soon-to-be experts in Slovenia have? : findings of higher education study programs’ analysis
Matevž Obrecht, Lazar Pavić, 2023, published scientific conference contribution

Abstract: Environmental topics are gaining more and more important both in the European Union and in Slovenia in the last decade. Climate changes (floods, droughts, and heat waves), pollution (soil, water, and air), management of invasive species, noise pollution, food self-sufficiency, sustainable development in the field of tourism, etc. are particularly present both in Slovenian Eastern and Western cohesion region. However, the level of knowledge about environmental challenges and competences of current experts and leaders to effectively manage and deal with them is perceived to be too low. The paper examines the inclusion of sustainable competences, knowledge, and skills in higher education programs in Slovenia to predict the level of sustainable knowledge. Slovenian soon-to-be professionals will be empowered by the Slovenian higher education system (Daneshjoo et al., 2020). Analysis included the content of 956 higher education study programs on the individual course level. In the next phase, a comprehensive comparative analysis of the situation in the areas of higher education and environmental education was performed. The factors based on which comparison was made are field of study, type of institution, level of study and number of subjects in the program that include some sustainable content. Non-parametric tests were used to determine statistically significant differences are the Mann-Whitney U test and the Kruskal-Wallis H test.
Keywords: sustainable development, sustainable knowledge, higher education, sustainable competences, higher education study programs
Published in DKUM: 12.01.2024; Views: 121; Downloads: 12
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