| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Search the digital library catalog Help

Query: search in
search in
search in
search in
* old and bologna study programme


1 - 10 / 99
First pagePrevious page12345678910Next pageLast page
Simulated global empty containers repositioning using agent-based modelling
Alaa Abdelshafie, Bojan Rupnik, Tomaž Kramberger, 2023, original scientific article

Abstract: Due to an ever-increasing movement of containers across the globe in line with the economic boom, the trade imbalance and issues related to empty containers have become inevitable. Empty containers accumulated at specific ports cannot only generate profit but also increase the environmental footprint. This research proposes a Maritime Empty Container Reposition Modelling Framework by integrating the agent-based modelling (ABM) paradigm to model the global movements of empty containers. An agent-based maritime logistic empty container redistribution model was developed to help minimize the total relevant costs for empty container movement in the planning horizon. In the system, ports, shipping companies, customers, and empty containers were identified as critical agents. Using simulated annealing (SA), shipping line agents were able to optimise empty container repositioning to determine the best sequence for moving containers. The model was applied to the Asia–Middle East region to simulate global empty containers repositioning in the region. The results comparison shows that the proposed optimised empty container repositioning framework can significantly reduce the shipping line’s costs and make full use of empty containers
Keywords: maritime industry, empty containers, repositioning, agent-based modelling, simulation, optimisation
Published in DKUM: 02.08.2023; Views: 72; Downloads: 11
.pdf Full text (2,91 MB)
This document has many files! More...

Proceedings of the 33rd International Conference on Information Modelling and Knowledge Bases EJC 2023

Abstract: The proceedings of the thirty-third conference EJC 2023 combine the experience and knowledge of the experts working and different research fields of Information modelling, Conceptual modelling, Knowledge and information modelling and discovery, Linguistic modelling, Cross-cultural communication and social computing, Environmental modelling and engineering, and Multimedia data modelling and systems.
Keywords: conceptual modelling, knowledge modelling, information modelling, linguistic modelling, cross-cultural communication, social computing, environmental modelling, multimedia data modelling
Published in DKUM: 02.06.2023; Views: 159; Downloads: 13
.pdf Full text (30,93 MB)
This document has many files! More...

GeMMa Activity Report 2016-2022
Tamara Golob, 2023, proceedings

Abstract: The primary aim of this publication is to support the dissemination of the research achievements of GeMMA Laboratory at the Faculty of Electrical Engineering and Computer Science of the University of Maribor. It follows the first survey published in 2016, and therefore, the actual book concentrates on the research results since then. The previous book, covering a period of 17 years, presented 35 R&D projects, while the new review of activities over the last 7 years covers as many as 58 projects. This growth is a good cue to introduce the secondary, equally important aim of the book. Namely, we would like to leave the track to our successors to stimulate them for even better research results, to show them, what is possible to achieve in 22 years starting from scratch with the will, hard work, orientation towards the applications, devotion to the research work, and the strong team spirit.
Keywords: research & development projects, geospatial modelling, multimedia, artificial intellingence, algorithms, industrial cooperation, international cooperation
Published in DKUM: 09.03.2023; Views: 239; Downloads: 32
.pdf Full text (30,44 MB)
This document has many files! More...

Alen Krunić, 2020, master's thesis

Abstract: Nowadays, traditional sources are mostly used for energy production, such as fossil and nuclear fuels. Such energy sources have a negative impact on the environment. As a result, trends in energy production are increasingly focused on renewable energy sources. These energy sources are available everywhere and their environmental impact is minimal. Nonetheless, these energy sources cannot be exploited with the same efficiency during the day (the Sun is not present the whole day, in winter, the sunlight days are shorter, the wind is not constant, etc.) or during different periods of the year. The variable amount of energy, produced from these sources and the integration with energy distribution systems, must not be overlooked. This is especially important in power plants, where it is necessary to ensure high energy reserves at excess load, which can be achieved by incorporating an improved energy storage system and higher efficiency of produced electricity. This process contributes to a significant reduction in costs. Direct energy storage systems, described in this master's thesis, are used in applications that require many fast charging and discharging cycles instead of a long-term energy storage in cars, buses, trains and lifts, where they are used for regenerative braking, short-term energy storage or as a primary source of electricity. Supercapacitors are electrochemical double-layer capacitors with low energy density and high power density. They have low series resistance, so they have the ability to emit high current, allowing them to charge quickly and a long lifespan. The goal of the thesis is to determine experimental parameters of supercapacitors and to compare them with theoretical parameters and batteries. With the simulation method of charge and discharge we have proven, that differences in results exists.
Keywords: storage, supercapacitor, application, modelling
Published in DKUM: 02.03.2020; Views: 1772; Downloads: 225
.pdf Full text (3,97 MB)

Numerical simulations of full-scale vehicles using PANS turbulence model : [master thesis]
Jan Viher, 2019, master's thesis

Abstract: External aerodynamics plays an important role in improving road vehicles efficiency. In the field of computational fluid dynamics (CFD), relatively basic and often inaccurate turbulence models are typically used in the industry. In this work, the Partially-Averaged-Navier-Stokes (PANS) method is used to show its applicability for industrial purposes. An air flow past two distinct geometrical models has been simulated using AVL FIRE and results have been compared with available measurements. The results show that the accuracy is vastly improved in comparison with conventional turbulence models. In modern external aerodynamics applications, the PANS model has the potential to be more widely used.
Keywords: aerodynamics, PANS, full-scale, advanced modelling
Published in DKUM: 28.11.2019; Views: 878; Downloads: 95
.pdf Full text (3,61 MB)

Analytical modelling of achieving energy efficiency with green walls
Dejan Tasić, 2019, master's thesis

Abstract: In the last years, energy efficiency has become an important issue for the EU and Slovenia, who both strive for more sustainable use of energy in buildings. As an innovative approach to such matter, green walls are vertical structures that can serve both as a façade or an insulation layer as well as an aesthetic design for building application. This thesis contains calculated annual heat (transmission) losses through different wall assemblies with and without a constructed green wall in front of them. The goal is to compare values of heat losses between those wall assemblies and the explanation of such results which will determine if green walls present a viable energy-efficient structure for buildings.
Keywords: energy efficiency, green wall, heat losses, modelling
Published in DKUM: 18.11.2019; Views: 1651; Downloads: 119
.pdf Full text (3,83 MB)

Raziskava buildingSMART IFC Bridge in evalvacija AllPlan Bridge na primeru informacijskega modela mostu Marija Gradec
Sebastijan Kelc, 2019, master's thesis

Abstract: V magistrskem delu je predstavljen projekt buildingSMART IFC Bridge, katerega rezultat je podatkovna shema IFC 4x2 Draft1. Osredotočili smo se na konceptualne sklope za mostove in preverili skladnost funkcionalnosti aplikacij Allplan in Allplan Bridge s shemo. V ta namen je bil izdelan informacijski model mostu M1 v Marija Gradcu. V zaključnem delu magistrske naloge so predstavljeni predlogi za izboljšave aplikacij Allplan Bridge in Allplan.
Keywords: IFC Bridge, bridges, Allplan Bridge, parametric modelling
Published in DKUM: 11.10.2019; Views: 1082; Downloads: 199
.pdf Full text (4,71 MB)

Systems methodology for strategic decision-making in complex healthcare system
Tadeja Jere Lazanski, 2017, original scientific article

Abstract: Systems methodology as a support for strategic decision- making will be discussed in the paper. A society will be presented as a complex system, which is comprised of many smaller, complex systems as its component parts. The healthcare system is one of them. The support to the strategic decision-making in a healthcare system will be shown through systems thinking and systems modelling. We will develop models of a healthcare system in frame of a systems dynamics; a qualitative causal loop diagram (CLD), which helps us to discuss the challenges categorically and a quantitative model, which is a simulation model. Both models illustrate the discussed methodology.
Keywords: systems methodology, healthcare system, strategic decision-making, systems thinking, modelling
Published in DKUM: 09.10.2018; Views: 1248; Downloads: 68
.pdf Full text (783,10 KB)
This document has many files! More...

Search done in 0.15 sec.
Back to top
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica