1. Celostno vrednotenje življenjskega cikla embalaže za paradižnik iz vidika vplivov na okolje : diplomsko delo univerzitetnega študijskega programaNika Purešević, 2022, undergraduate thesis Abstract: Ta naloga predstavlja celovito oceno življenjskega cikla embalaže za paradižnik iz vidika vplivov na okolje. V nalogi so analizirane štiri različne plastične embalaže za paradižnik – polipropilenska folija, polipropilenska vrečka kombinirana s kartonsko škatlo iz valovitega recikliranega papirja, navadna plastična vrečka iz polietilena nizke gostote in škatla iz recikliranega polietilena tereftalata. Analizo vrednotenja življenjskega cikla smo izvedli z uporabo programskega orodja Open LCA in CML Centrum voor Milieukunde Leiden, metodo za vrednotenje vplivov. Rezultati so pokazali, da imata procesa proizvodnje plastične embalaže in kartonske škatle največji vpliv na okolje. Gledano skozi celoten življenjski cikel, predstavlja R PET škatla najslabšo možnost za izbiro embalaže, saj ima vpliv na večino okoljskih kazalcev izrazitejši, v primerjavi z drugimi embalažami. LDPE in PP vrečka nista tako sporni za okolje, kot pa R PET škatla ali celo sestavljena embalaža iz PP folije in kartonske škatle. Vse embalaže pa dosegajo največje vplive na okolje v kategoriji globalnega segrevanja ozračja.
Keywords: življenjski cikel, plastična embalaža, polipropilen, reciklirani polietilen tereftalat, polietilen nizke gostote, vpliv na okolje
Published in DKUM: 16.01.2023; Views: 96; Downloads: 16
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2. Sustainable development in transport and logisticsVasja Omahne, 2021, master's thesis Abstract: The support for an ongoing global pursuit of sustainable development, consumer awareness about sustainability, and regulations have affected the transport and logistics sector due to the fact that it presents ample environmental, social and economic challenges. The transport sector contributes globally to about 14% of greenhouse gas emissions, and around one third of the European Union's emissions, yet also represents an important economic sector, employing around 10 million individuals, thus requiring an in-depth discussion, especially regarding environmental impact. Due to increasing global concern for the environment, companies and policymakers are facing pressure to reduce the environmental impact related to transport and logistics activities and make them more sustainable. Before choosing a best practice for improvement, especially regarding the environmental perspective, a thorough analysis regarding the environmental impact has to be carried out based on reliable data and methodology. For such purposes, the life cycle assessment (LCA) defined by standards ISO 14040 and 14044 is commonly used. While the LCA focuses only on the environmental perspective, sustainability is represented by three dimensions, which are environmental, economic and social and those are interlinked, which presents a challenge, as each dimension has a major impact on every stage of the life cycle of a product, process or service. Thus there is a need to evaluate all three perspectives of sustainability in order to make transport and logistics processes more sustainable. Another option to make transport and logistics processes more sustainable and to achieve sustainable development is through education. Thus, it is important to integrate sustainability-oriented topics in logistics programs and courses, and consequently educate future logisticians about sustainability. Considering environmental burdens and sustainable development in transport and logistics, we explored LCA regarding its use in transport and logistics and studied the integration of sustainability into logistics education in EU, as it is important to educate future logistics managers and decision makers to gain sufficient knowledge on the importance of sustainability. Also, as logistics processes pose several environmental challenges and impacts, social and economic impacts are the ones that are frequently overlooked. Thus we additionally focused on performing an applicable comprehensive sustainability evaluation of a monkey toy and evaluated its environmental (through LCA), social (through SLCA) and economic (through LCC) impacts through the life cycle. At the same time, we explored options to enhance the present CE concept in the monkey toy company. Exploring the use of LCA in transport and logistics, we focused on the state-of-the-art of transport-related life cycle assessment studies, as they are important for the decision-making processes. Our research of LCA & transport studies was framed around the requirements of the International Organization for Standardization. A specific focus was given to the quality of life cycle assessment phases, comprehending goal and scope, inventory, life cycle impact assessment, and interpretation. Thirty-four research and review papers were studied, sourced from the Web of Science database. Studying the monkey toy, we firstly assessed the environmental impacts of the toy through LCA and additionally combined it with SLCA and LCC to evaluate the toy's sustainability comprehensively. Based on the results of the sustainability evaluation, we gained an insight into environmental, economic and social hotspots that the monkey represents. We then presented a possible enhancement of the CE concept. Lastly, focusing on logistics education, we analyzed and elaborated upon an integration of sustainability topics at higher education programs in logistics and their curricula for bachelor and master degrees at universities across Europe.
Keywords: logistics, transport, sustainability, life-cycle assessment, logistics education
Published in DKUM: 26.03.2021; Views: 1032; Downloads: 0
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3. Celostno vrednotenje življenjskega cikla prehrambenih oskrbovalnih verigPetra Vidergar, 2020, master's thesis/paper Abstract: Oskrba s hrano je eno izmed najbolj zapletenih logističnih področij v zadnjih desetletjih glede na neprestano rast potrošnje prehrambenih izdelkov, predvsem v hitro razvijajočih se državah. Oskrbne verige hrane postajajo vse bolj globalne in prepletene znotraj široke mreže pridelovalcev, distributerjev, logističnih centrov, trgovin in potrošnikov. Kompleksnost na področju prehrambne industrije prinaša odgovorno spremljanje sledljivosti blaga, preverjanja kakovosti, ustreznosti in časovne zadostnosti z ozirom na zadovoljitev potreb vse zahtevnejših potrošnikov. Z večanjem proizvodnih kapacitet in zadovoljitvijo potreb po hrani globalnega prebivalstva je neizogibna posledica onesnaževanje okolja z različnimi izpusti in odpadnimi snovmi. Za bolj celovito razumevanje oskrbovalnih verig hrane, njihovih vlog in potencialov izboljšav moramo sisteme proučiti na zelo podroben, sistemski in strukturiran način, ki presega le opis materialnih tokov, porabljeno energijo, transportne poti in časovne omejitve. V zadnjih letih se povečuje zanimanje za vrednotenje oskrbnih verig predvsem z vidika emisij v zrak (npr. CO2) in uvajanja trajnostne embalaže ter skrbnega ravnanja z odpadki. Poudarek je tudi na spodbujanju potrošnikov k nakupu okolju prijaznih gospodinjskih aparatov in drugih naprav. Redko pa najdemo raziskave, ki vključujejo celovito vrednotenje oskrbne verige od samega začetka pridobivanja materialov, skozi transport do proizvodnega obrata, proizvodne procese, transport do distribucijske mreže, potrošnika in, ne nazadnje, skozi fazo uporabe izdelka v času njegove življenjske dobe, vse do zadnje faze, ko izdelek izgubi svojo prvotno funkcijo in postane odpadek in lahko tudi vir za nadaljnjo uporabo. Pri pregledu literature na področju trajnostne oskrbe s hrano lahko v zadnjih letih zasledimo novejšo metodo celostnega vrednotenja okoljskih vplivov oskrbovalnih verig, imenovano Life Cycle Assessment, ali vrednotenje življenjskega cikla (v nadaljevanju LCA). Metoda temelji na ISO (Mednarodna organizacija za standardizacijo) standardih 14040 in 14044 ter je ena izmed najbolj celovitih in znanstveno ter metodološko podprtih postopkov za vrednotenje vplivov na okolje v celotnem življenjskem ciklu izdelka, procesa ali storitve.
Keywords: Oskrbne verige hrane, Analiza življenjskega cikla, Krožno gospodarstvo, Trajnostna logistika, Vpliv na okolje.
Published in DKUM: 13.03.2020; Views: 1089; Downloads: 6
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4. Izvajanje krožnega gospodarstva v državah članicah eu-13Samo Kumperščak, 2018, bachelor thesis/paper Abstract: V diplomskem delu smo raziskali področje krožnega gospodarstva ter izvajanje le-tega znotraj držav EU-13. Z izvajanjem krožnega gospodarstva bi države postale bolj konkurenčne ter bi imele manjši, negativen vpliv na okolje. Cilji diplomskega dela so ugotovitev prisotnosti izvajanja krožnega gospodarstva v državah članicah EU-13, predvsem na osnovi strateških in političnih usmeritev, ki so bile spodbujene s strani Evropske komisije in parlamenta, preučevanje priložnosti, izzivov in ovir izvajanja načel krožnega gospodarstva ter predstavitev konkretnih predlogov za boljše vključevanje krožnega gospodarstva v državah EU-13. S pomočjo različnih virov smo razdelali pojem krožnega gospodarstva ter pripomogli k boljšemu razumevanju le-tega. Vključevanje krožnega gospodarstva v politične strategije je pomembno za nadaljnji razvoj države. Vključevanje krožnega gospodarstva znotraj držav lahko izboljšamo s pomočjo finančnih spodbud. Diploma je napisana z uporabo opisne metode, s katero smo predstavili teoretično ozadje in definicije. Uporabili smo tudi kvalitativno raziskavo in primerjalno metodo. Ugotovljeno je, da so zametki krožnega
Keywords: krožno gospodarstvo, EU-13, politične usmeritve, izzivi, ovire
Published in DKUM: 27.02.2019; Views: 952; Downloads: 110
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5. An evaluation of marine sediments in terms of their usability in the brick industry : case study Port of KoperPatrik Baksa, Franka Cepak, Rebeka Kovačič Lukman, Vilma Ducman, 2018, original scientific article Abstract: A dredging process is essential for the development of harbours and ports, allowing the functional daily operation of the port. The management of dredged material represents a worldwide challenge, especially considering unwanted deposition of material. Because of their chemical, petrographic, mineralogical and homogeneity composition, marine sediments could represent an appropriate raw material for the brick industry, particularly for the production of clay blocks, roofing and ceramic tiles. In this study dredged material from Port of Koper was tested for such use, thus various analyses were carried out in order to determine if the dredged material is environmentally friendly and suitable for use in the brick industry. These included: chemical analysis, mineralogical analysis, particle size analysis, chloride content analysis and tests of firing in a gradient furnace. Furthermore, tests of mechanical properties, as well as tests of the frost-resistance of the samples were carried out. On the basis of the primary analyses and samples prepared in a laboratory, it was confirmed that marine sediments from the Port of Koper, without any additives are only conditionally suitable as a source material for producing brick products, because without additives they exhibit too much shrinkage on drying and firing, as well as high water absorption, this can be improved by the incorporation of suitable additives, for example, virgin clay or other suitable waste material. The approach described herewith can also be followed to assess sediments from other ports and rivers regarding its potential use in clay brick sector.
Keywords: dredge marine sediment, recycling, clay bricks, mechanical properties, chemical analysis
Published in DKUM: 21.12.2017; Views: 2014; Downloads: 168
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6. Vnos informacijsko komunikacijske tehnologije in e-preverjanja znanja pri predmetu kemijaKlavdija Černelč, 2015, master's thesis Abstract: Živimo v času globalizacije in hitrih sprememb na področju informacijsko komunikacijske tehnologije (IKT). Tako na svetovnem kot tudi slovenskem področju se IKT hitro širi v vse stopnje vzgojno-izobraževalnega procesa. IKT omogoča e-učenje (e-izobraževanje), ki vnaša v učni proces inovativnost in možnost širjenja znanja učitelja in učenca.
Za učinkovito izvedbo je potrebno usvojiti nova znanja in spretnosti, saj tak način dela zahteva skrbno načrtovanje. Za kakovostno e-preverjanje znanja je potrebno kreirati banko nalog oziroma vprašanj na različnih taksonomskih ravneh, oblikovati kviz, seznaniti učence z izvajanjem e-preverjanja znanja ter pripraviti strojno in programsko opremo za izvedbo. V prvem letu mora učitelj vložiti veliko truda, časa in dodatnega dela v nov način poučevanja, vendar se ta trud povrne v naslednjih letih. Pri delu je izrednega pomena povezanost skupine ljudi, ki so odgovorni za učinkovito e-preverjanje znanja. Skupina naj bi sestavljali računalničar, laborant in učitelj.
V nalogi je predstavljena sistematična pot vnosa IKT in e-preverjanja znanja v devetem razredu Osnovne šole Šmarje pri Jelšah pri predmetu kemija. Raziskava je potekala dve šolski leti. Prvo leto sta v raziskavi sodelovala dva oddelka, drugo leto pa štirje oddelki devetega razreda. V raziskavi smo se prednostno osredotočili na elektronsko preverjanje znanja, ki smo ga izvedli s pomočjo spletne učilnice Moodle, dejavnosti Kviz. Svoje mnenje o novem načinu preverjanja znanja so učenci podali v anketnem vprašalniku ob koncu obeh, v raziskavo vključenih, šolskih let.
Keywords: IKT, e-učenje, e-učno okolje, e-preverjanje znanja, spletna učilnica, Moodle, kemija
Published in DKUM: 29.10.2015; Views: 1806; Downloads: 241
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7. GEOGRAFIJA IN TRAJNOSTNA UNIVERZA MARIBORValentina Rogač, 2012, undergraduate thesis Abstract: Združeni narodi so obdobje med letoma 2005 in 2014 označili za obdobje izobraževanja za trajnostni razvoj. Izobraževanje v tej smeri bo omogočilo spremembe v vedenju, kar bi zagotovilo svetlejšo prihodnost za sedanje in prihodnje generacije. Pomembno vlogo pri tem imajo tudi univerze, ki imajo velik pomen pri prenosu znanja v prakso.
Namen diplomskega dela je bil ugotavljanje razumevanja trajnostnega razvoja med študenti geografije. Izvedena je bila kvantitativna raziskava, v kateri so bili anketirani študentje geografije na Filozofski fakulteti Univerze v Mariboru. Rezultati so pokazali, kaj o trajnostnem razvoju študentje že vedo, v kolikšni meri je po njihovem mnenju že vključen v študij geografije, kako sami prispevajo k večji trajnosti ter njihovi predlogi, kaj vse bi lahko naredili na Univerzi v Mariboru, da bi postala trajnostna. Njihovi predlogi so bili primerjani z dokumentom UM o trajnostnem razvoju.
Prav tako so bili pri raziskovalnem delu razviti kriteriji za trajnostno pismenost z upoštevanjem in evalvacijo učnih načrtov geografije na mariborski Filozofski fakulteti.
Z drugim delom raziskovalnega dela je bilo analizirano obstoječe stanje uresničevanja načel trajnostnega razvoja na Filozofski fakulteti. Izpostavljeni so bili problemi in podane konkretne spremembe, kako trajnostne vsebine vnesti v njeno delovanje, organizacijo in izvajanje vsakodnevnih aktivnosti.
Keywords: trajnostni razvoj, geografija, kazalci, trajnostna pismenost, trajnostna fakulteta, trajnostna univerza
Published in DKUM: 20.07.2012; Views: 2212; Downloads: 147
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8. What are the key elements of a sustainable university?Rebeka Kovačič Lukman, Peter Glavič, 2007, original scientific article Abstract: Nowadays, the principles of sustainable development are becoming increasingly important and universities are acting as agents in promoting these principles within society. In the future, universities will inevitably play crucial role in propagating these principles. This paper highlights important documents and discusses definitions of the term education for sustainable development. Elements, based on continuous feedback loop (Deming spiral) are discussed, in order to incorporate sustainability principles into university activities. The University of Maribor has been used as a case study to test the effectiveness of the proposed integration of sustainable development principles.
Keywords: chemical engineering, trajnostni razvoj, sustainable university, higher education, study programs, environmental engineering
Published in DKUM: 01.06.2012; Views: 1998; Downloads: 99
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9. Exploring non-traditional learning methods in virtual and real-world environmentsRebeka Kovačič Lukman, Majda Krajnc, 2012, original scientific article Abstract: This paper identifies the commonalities and differences within non-traditional learning methods regarding virtual and real-world environments. The non-traditional learning methods in real-world have been introduced within the following courses: Process Balances, Process Calculation, and Process Synthesis, and within the virtual environment through the European funded Lifelong Learning Programme project at the University of Maribor. The results, based on qualitative research in both environments show the appropriateness of non-traditional learning methods in comparison with traditional ones, although collaborative learning in both environments causes several frustration based on conflicts (personal or disagreements during the learning phase), influencing the efficiency of the learning process. This presents opportunities for improving and overcome emerging barriers by fostering motivation and interactivity.
Keywords: non-traditional learning methods, collaborative learning, virtual environments, real-world environments
Published in DKUM: 01.06.2012; Views: 1659; Downloads: 81
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