1. |
2. |
3. Investigation of the potential of waste gasification systems in achieving sustainable waste management practices and exploring their potential to contribute to the circular economy : master's thesisAnđela Korać, 2024, master's thesis Abstract: Waste management is a global problem, as waste production continues to rise, and the methods used today, such as landfilling and incineration, can cause many environmental issues. Waste gasification, among other technologies, is a promising alternative since waste is turned into useful energy resources and reduces emissions with the formation of syngas. Thus, this thesis investigated the potential of waste gasification systems in sustainable waste management and circular economy. Focusing on its energy and economic potential, modeling methods were used to recreate real-world systems, with the goal of properly estimating the true sustainability potential of the waste gasification systems. Biomass gasification was evaluated through thorough thermodynamics and economic analysis. Although the initial calculations failed to provide positive results by showing the energy of 54 MJ, instead of the expected energy release, further analysis with the optimized conditions and different assumptions, provided more accurate results. By increasing the share of oxidized CO from 10% to 25%, and reducing the wet material from 35% to 10%, total released heat was estimated to be −148.9 MJ. With the right assumptions, the gasification process was proved to provide good energy values necessary for the sustainability of such a process. Additionally, the financial analysis produced a high Net Present Value (NPV) of EUR 3,434,411.46, Internal Rate of Return (IRR) of 21.81%, and a short payback period (PP) of 4.48 years, hence proving the strong economic potential and financial strength of such technology. Therefore, biomass waste gasification was concluded to be a positive investment opportunity with valuable long-term economic benefits, while still providing good energy balance.
Keywords: waste, gasification, energy, circular economy, emission
Published in RUNG: 18.12.2024; Views: 249; Downloads: 2
 Full text (2,16 MB) |
4. Hell thunders : how sound influences the film narrativeMilan Bajčetić, 2024, master's thesis Abstract: This master thesis deals with the theoretical and practical part of my short film “Hell Thunders”. In the theoretical part, the topic is about the usage of sound and how it influences the understanding of the film narrative, where my film was used as an example.
In the practical part, I will describe the process behind the pre-production phase, where I will also explain how and why I made specific sound choices that helped create the film.
Keywords: film, sound, music, narrative, information, metaphor
Published in RUNG: 09.10.2024; Views: 575; Downloads: 8
Full text (11,12 MB)
This document has many files! More... |
5. The thread : master's thesisAnastasija Kojić, 2024, master's thesis Abstract: This thesis explores combination and intersection of activism and art through creative project that addresses issues of gender-based violence, precisely verbal abuse. The project was done in several phases, beginning with photography. Selection and photographing model, followed up by participating in the exhibition where women and girls wrote answers to main question on printed photographs. To gain a broader perspective, three focus groups with participants of different ages were held, additionally more insights were obtained by online conversations with selected participants. Inspired by the work of Chiharu Shiota, a red thread is used in the embroidery of photographic canvases, symbolizing resilience and reclaiming identity. Final installation was displayed in a way to encourage visitors to interact with embroidered canvass. This thesis advocates the idea that art can serve as a powerful vehicle for social commentary and healing, creating a platform for voices and encouraging dialogue on key social issues.
Keywords: art, activism, gender based violence, artistic research, feminist art, embroidery, photography
Published in RUNG: 03.10.2024; Views: 562; Downloads: 3
Full text (2,11 MB) |
6. Dreamer : live coding, algorave and the artistic exploration of dreamsLazar Mihajlović, 2024, master's thesis Abstract: Observing the developments and intersections between music, graphics, video, code and club culture in the music scene around the year 2010, primarily based in England, a new cultural movement known as ”Algorave” has emerged, reshaping the boundaries of new artistic expression. While the practices of live and creative coding had been present on the global stage for some time, the “Algorave” scene emerges as a unique blend of these artistic directions, combining various elements and offering a distinctive sound-visual artistic expression. Unlike traditional music performances, artists of this movement openly share their live coding processes with the audience, guiding them through the entire process of the performance. By utilizing live coding as the primary artistic tool and integrating it with artificial intelligence, the work Dreamer demonstrates a fusion of these two approaches. It visually explores dreams using images generated by AI technology. These images are then manipulated through live coding techniques, creating a visual narrative that is accompanied by ambient-electronic sounds. The sound complements the visual elements, achieved through the use of various synthesizers, samplings and granular synthesis, a technique that fragments sound into small grains to create complex sound textures. Beyond its practical execution, Dreamer addresses dreams as something unknown and undisclosed. It raises the question of whether dreams can be considered insights into our parallel lives, or are they merely products of our imagination? Should we explore them rather than just observe them? Based on these questions, the work examines dreams through programming and technology, seeking new possibilities for artistic expression.
Keywords: code, sound, algorithm, visual art, algorave, technology, master's thesis
Published in RUNG: 03.10.2024; Views: 551; Downloads: 5
Full text (2,90 MB)
This document has many files! More... |
7. Can you feel it : exploration of anxiety through artistic practicesTamara Kostrevc, 2024, master's thesis Abstract: Anxiety is described in psychiatry as a mental disorder that manifests itself in an unpleasant state
of excitement, tension due to a sense of threat, fear without a real external reason. This short
definition does not cover its many forms. Given that anxiety is present all over the world, and that
almost everyone experiences it nowadays, it would be necessary and important to talk more about
it. Can You Feel It is an installation that visually and sonically illustrates the levels of anxiety and
encompasses both the mental and physical changes an individual experiences. It illustrates the
battle with this psychological condition through the artistic practice of an interactive audiovisual
installation.
Keywords: anxiety, interactive installation, sound elements, visuals, pulse sensor
Published in RUNG: 03.10.2024; Views: 510; Downloads: 6
Full text (1,98 MB)
This document has many files! More... |
8. Analiza vpliva izgorevanja lesne biomase na koncentracije onesnaževal v zunanjem zraku : magistrsko deloIrena Kranjc, 2024, master's thesis Abstract: Les je v Sloveniji tradicionalno pomemben obnovljiv vir za ogrevanje v gospodinjstvih. Pri tem nastajajo delci, ki imajo negativen vpliv na zdravje. Z namenom določitve vpliva izgorevanja lesne biomase na raven onesnaženja z delci smo na več lokacijah v obdobju med 2016 in 2021 izvedli vzorčenje delcev PM10 in njihovo kemijsko analizo. Analiza je bila usmerjene v parametre povezane z izgorevanje lesne biomase: levoglukozan, manozan, galaktozan, organski in elementarni ogljik, kalij in benzo [a] piren. V obdobju med 2016 in 2021 so bile v januarju in februarju najvišje koncentracije izmerjene v letu 2017, najnižje pa v letu 2021. Razlike so povezane predvsem z različnimi meteorološkimi razmerami. Koncentracije delcev PM10, kot tudi koncentracije in deleži levoglukozana, kalija in benzo [a] pirena so bile v zimskih mesecih višje, kot v poletnem obdobju. Izjema sta le organski in elementarni ogljik, pri katerih je koncentracija v zimskem času višja, kot v poletnem, njuna deleža v delcih PM10 pa se preko leta bistveno ne spreminjata. Na podlagi razmerja med levoglukozanom in manozanom smo ugotovili, da se v Sloveniji za ogrevanje uporablja tako mehek, kot trd les. Delež delcev, ki jih lahko pripišemo izgorevanju lesne biomase je bil v januarju in februarju v obravnavnem obdobju visok – najvišji je bil v Novem mestu (52 % ± 5 %), najnižji pa v Mariboru (21 % ± 6 %).
Keywords: delci PM10, levoglukozan, manozan, izgorevanje lesne biomase, raven onesnaženja z delci, magistrske naloge
Published in RUNG: 26.09.2024; Views: 702; Downloads: 10
Full text (2,72 MB) |
9. Proučevanje eno in večkovinskih katalizatorjev na silikatnem nosilcu v naprednem oksidacijskem procesu za čiščenje odpadnih voda : magistrsko deloSara Kozjan, 2024, master's thesis Abstract: Ena izmed glavnih onesnaževal v odpadnih vodah so strupene organske spojine, katerih količina se z industrijskim razvojem nenehno povečuje. Najbolj nevarna so tako imenovana zaskrbljujoča onesnaževala (CEC – Contaminants of Emerging Concern), med katerimi so najpogostejših farmacevtski izdelki in izdelki za osebno nego. Za učinkovito odstranjevanje le-teh se raziskave osredotočajo na napredne oksidacijske procese (Advanced Oxidation Processes – AOP), ki s pomočjo katalizatorjev in oksidantov organska onesnaževala oksidirajo v ogljikov dioksid, vodo in mineralne kisline. Magistrska naloga se nanaša na proučevanje eno, dvo in trikovinskih katalizatorjev na silikatnem nosilcu. Kovine, ki smo jih proučevali, so bile baker, mangan in železo.
Katalizatorji so bili sintetizirani na Odseku za anorgansko kemijo in tehnologijo na Kemijskem inštitutu. Katalizatorje smo najprej ovrednotili z osnovnimi karakterizacijskimi metodami, kot so rentgenska difrakcija (XRD – X-Ray Diffraction), dušikova fizisorpcija in vrstična elektronska mikroskopija (SEM – Scanning Electron Microscopy). Ugotovili smo, da imajo višjo vsebnost kovin skoraj vsi kalcinirani katalizatorji v primerjavi z ekstrahiranimi in kalciniranimi katalizatorji, kar lahko pripišemo ekstrakcijskemu postopku, med katerim se najverjetneje odstrani določeno množino kovin iz katalizatorjev. Postopek priprave bistveno ne vpliva na specifično površino, velikost por in volumen por katalizatorjev. Pri kalciniranih katalizatorjih, ki vsebujejo Cu, je le-ta prisoten v obliki CuO.
Katalitske teste sem izvedla na dveh modelnih onesnaževalih iz skupine CEC in sicer na kumarinu (Fenton in foto-Fenton AOP) in glifosatu (Fenton AOP). Ugotovila sem, da so v primeru obeh uporabljenih modelnih onesnaževal najbolj učinkoviti dvokovinski katalizatorji in sicer pri kumarinu katalizator s Cu in Mn ter pri glifosatu katalizator s Cu in Fe. Pri kumarinu katalizator s Cu in Mn kaže tudi na fotokatalitsko aktivnost pri obsevanju z vidno svetlobo. Prav tako sem ugotovila, da so tako kot pri kumarinu tudi pri glifosatu bolj učinkoviti kalcinirani katalizatorji v primerjavi z ekstrahiranimi in kalciniranimi katalizatorji. To lahko pripišemo višji vsebnosti kovin ali/in prisotnosti Cu specij v obliki CuO v kalciniranih katalizatorjih. To ugotovitev bi bilo potrebno v nadaljevanju podrobneje raziskati.
Keywords: čiščenje odpadnih voda, napredni oksidacijski procesi, heterogena kataliza, katalizatorji na silikatnem nosilcu, glifosat, kumarin
Published in RUNG: 11.09.2024; Views: 864; Downloads: 13
Full text (2,43 MB) |
10. Disinfection of wastewater using porous Fe2O3 thin film : master's thesisRanin M. D. Ismail, 2024, master's thesis Abstract: The contamination of water bodies by microorganisms is seen as a highly significant issue that poses a threat to human and animal well-being. The primary objective of this master thesis is to develop and evaluate an environmentally friendly photoelectrochemical (PEC) method using porous Fe₂O₃ thin films for the disinfection of wastewater. This thesis presents the novel application of porous Fe₂O₃ thin films, which were produced using a cost-effective spin-coating technique, to improve the process of PEC disinfection. The PEC approach has been demonstrated to be highly effective in disinfection of wastewaters deliberately contaminated with E. coli bacteria. The crystallinity of the Fe₂O₃ porous thin films was confirmed using X-ray diffraction (XRD), while the film morphology was studied using scanning electron microscopy (SEM). The PEC disinfection procedures were conducted in the presence of two separate electrolytes, sodium sulfite (Na₂SO₃) and sodium chloride (NaCl), which were chosen for their specific roles in improving the effectiveness of disinfection. The PEC method shown efficacy in inactivating E. coli, with 45% of the bacteria being inactivated in the presence of 2 mM Na₂SO₃ and complete inactivation achieved with 20 mM NaCl. The findings suggest that the PEC disinfection process is a highly efficient and eco-friendly technology that can be used as a practical substitute for traditional disinfection methods. As a result, it has potential applications in ensuring public safety and safeguarding the environment, particularly in relation to wastewater treatment.
Keywords: Treated wastewater, Disinfection, Escherichia coli, Photoelectrochemical oxidation, Fe2O3 thin films, Sodium sulfite and Sodium chloride.
Published in RUNG: 09.09.2024; Views: 991; Downloads: 16
Full text (2,23 MB) |
