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1.
Influence of Al2O3 nanoparticles addition in ZA-27 alloy-based nanocomposites and soft computing prediction
Aleksandar Vencl, Petr Svoboda, Simon Klančnik, Adrian But, Miloš Vorkapić, Marta Harničárová, Blaža Stojanović, 2023, original scientific article

Abstract: Three different and very small amounts of alumina (0.2, 0.3 and 0.5 wt. %) in two sizes (approx. 25 and 100 nm) were used to enhance the wear characteristics of ZA-27 alloy-based nanocomposites. Production was realised through mechanical alloying in pre-processing and compocasting processes. Wear tests were under lubricated sliding conditions on a block-on-disc tribometer, at two sliding speeds (0.25 and 1 m/s), two normal loads (40 and 100 N) and a sliding distance of 1000 m. Experimental results were analysed by applying the response surface methodology (RSM) and a suitable mathematical model for the wear rate of tested nanocomposites was developed. Appropriate wear maps were constructed and the wear mechanism is discussed in this paper. The accuracy of the prediction was evaluated with the use of an artificial neural network (ANN). The architecture of the used ANN was 4-5-1 and the obtained overall regression coefficient was 0.98729. The comparison of the predicting methods showed that ANN is more efficient in predicting wear.
Keywords: ZA-27 alloy, Al2O3 nanoparticles, nanocomposites, wear, response surface methodology, artificial neural network
Published in DKUM: 20.03.2024; Views: 110; Downloads: 4
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2.
Implementing a business idea: an example of a business model for a digital marketing agency
Tomaž Gjergjek, 2022, undergraduate thesis

Abstract: In the diploma thesis, we researched the process of implementing a business idea, mainly because we live in a rapidly changing digital world, where more and more individuals opt for entrepreneurship, yet many business ideas remain unrealized due to lack of knowledge about the implementation process. We prepared a business model for the development and implementation of our business idea, namely the establishment of a digital marketing agency where we will provide services related to support in digital marketing and IT solutions. In the first part of the thesis, we defined the development and generation of business ideas in more detail, presented the ways to assess business opportunities, defined the importance of a properly designed business model, presented the models for assessing the value of business ideas, defined the general importance of a business plan, presented different types of business structures and possible ways of obtaining financial resources when starting a new company. In the following, we analyzed modern methods of developing a new business referring to the lean start-up method which is currently considered an innovative approach to business development in the world of entrepreneurship. We then compared the lean start-up method with the traditional business planning approach, analyzed key arguments, and formed an opinion on an approach that is suitable for the implementation of our business idea. In the empirical part, we developed our business idea according to the "lean" canvas business model with the corresponding financial plan. With the help of this model, we tested the viability of our business idea. In each segment of the "lean" canvas business model, we wrote down in detail the factors that we obtained from the research. We found that the lean start-up method with associated financial plan is a suitable method for developing our business idea. The reason for this is that we will be operating in a global market where the competition is very high, which consequently makes our business idea time sensitive. We have also found that the financial plan used in the traditional approach should not be completely neglected, mainly because of the insight into costs, revenues, and possible opportunities for obtaining external funds. With the help of the mentioned method and the analysis of the financial side of our business idea, we found that our business idea will be profitable, and that the business idea can be realized with the set investment.
Keywords: business idea, business model, lean start-up methodology, digital marketing.
Published in DKUM: 30.11.2022; Views: 780; Downloads: 71
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3.
Corporate governance of slovenian and german telecommunications companies
Natalija Pauman, 2019, master's thesis

Abstract: In the master’s thesis we researched corporate governance and the quality of corporate governance. Corporate governance and management of organizations stem from the need and the desire for the existence and development of an organization. It is necessary to establish certain kind of monitoring and controlling in organizations, which we define with the term “corporate governance”. Corporate governance is the system of regulating and controlling corporate conduct and of balancing interests of all shareholders and other stakeholders to which company has influence. The interests of directors and shareholders may be in contrast. The purpose of corporate governance is to find a way to satisfy the interest of both, the board of directors and the shareholders, and at the same time to create long-team and sustainable growth for the company. Corporate governance is extremely important for individual organizations and, consequently, for their business. Compering different organizations, their corporate governance is done in different ways. Corporate governance in developed countries and leading economies is certainly different than in smaller and less developed countries. In this case, arises a question what kind of corporate governance can be labelled as “good” or “first-class” corporate governance. In order to improve corporate governance practices, various legal regulations and other forms of binding and less binding rules, recommendations, codes and standards have been developed. Quality is extremely important for organizations, therefore several methods, methodologies and indexes for measuring the quality of corporate governance have been developed. The purpose of methods is to evaluate and compare the quality of corporate governance between individual companies and between different countries. The results can serve for developing measures to improve corporate governance practices. At the same time, findings can serve to modify and supplement existing legislation and recommendations. The corporate governance index, as a measure of the quality of corporate governance processes, can also be one of the important indicators of the company's potential in order to access to new sources of capital and to reduce the capital´s costs in comparison with other companies. The main purpose of the master's thesis is to study corporate governance and its impact on the business of Slovenian and German telecommunication companies. We make comparison between following companies: Telekom Slovenije, d.d., A1 Slovenija, d.d., Deutsche Telekom AG and Telefónica Deutschland Holding AG. The quality of corporate governance in selected companies was measured with the SEECGAN methodology and index. The methodology was designed to measure the quality of corporate governance. It ensures transparency and provides a structured overview of the main areas of corporate governance between different companies. In empirical part of master’s thesis, we found out that Telekom Slovenije, d.d. has "first-class" quality of corporate governance, A1 Slovenia, d.d. has a "good" quality of corporate governance, Deutsche Telekom AG has a "first-class" quality of corporate governance and Telefónica Deutschland Holding AG has a "good" quality of corporate governance. We found out that both countries have companies with “first-class” and “good” corporate governance. The quality of corporate governance is not related to the national origin or country of operation of the company. One of the main finding of the analysis is that there are no significant differences between the quality of corporate governance in specific areas of SEECGAN index in Slovenian and German companies.
Keywords: corporate governance, quality of corporate governance, telecommunication companies, public stock companies, SEECGAN index and methodology, measuring the quality of corporate governance
Published in DKUM: 24.10.2019; Views: 1051; Downloads: 105
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4.
The development of sustainable mobility plan (SUMP), example for city of Sinj, Croatia
Anđelo Marunica, 2019, master's thesis

Abstract: SUMP (Sustainable Urban Mobility Plan) is an innovative way of planning urban traffic in order to meet the needs of citizens in a sustainable way. Unlike the traditional approach to traffic planning, SUMP places a special emphasis on citizen and other stakeholders involvement and participation, in which different decisions regarding various sectors such as traffic, spatial planning, economic development, social activities, health, safety, energy, etc. are coordinated . The SUMP concept for the city of Sinj proposes 30 measures compiled in 6 themed packages, which are expected to greatly improve the quality of traffic in the city, in addition to reducing air pollution and improving the quality of life for residents of Sinj, while simultaneously, to a certain extent, stimulating economic growth and reversing demographic decline which is currently affecting the municipality of Sinj.
Keywords: SUMP, city of Sinj, sustainable mobility plan, sustainable mobility, sustainable mobility planning methodology
Published in DKUM: 23.09.2019; Views: 1008; Downloads: 98
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5.
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: 1434; Downloads: 70
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6.
Tourist farm service quality assessment
Karmen Pažek, Črtomir Rozman, 2010, review article

Abstract: Farm tourism shows a structure different from agriculture, forestry, and fishery; farm tourism is expanding, labour intensive, generates an influx of money, and maintains the service base in the region. Farm tourism is one of the most important supplementary activities and generates considerable secondary income. This paper present the developed methodology that will enable the ranking of tourist farms based on their service quality. This is accomplished through the use of the expert system based on the DEXi decision-making method. Using DEXi, the multi-criteria decision model for the assessment of farm tourism-s service quality was developed. The model was applied in practice on 7 vacation farms. The data from the questionnaires completed by farm guests and hosts was used as input data in the multi-attribute model and as an arbitrary estimation for the farm. The results of the model are shown as the assessments for individual farms. Out of seven chosen farms, four achieved the best possible estimation. Two of them achieved middle estimation. For the last tourist farm, where a data deficit was present, the model showed two final possible estimations (very good or good and bad - depends on value of missing attributes.
Keywords: tourist farm, multi-criteria analysis, DEXi methodology, ranking
Published in DKUM: 29.03.2018; Views: 983; Downloads: 108
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7.
The COMPRAM methodology and comlpex societal problems : an analysis of the case of children born in the war
Ingvill Mochmann, Dorien DeTombe, 2010, original scientific article

Abstract: During and after wars children are born where the father is a member of an occupation or peacekeeping force and the mother a local citizen. Securing the human rights of children born of war is often highly complex and involves researchers and practitioners from different disciplines. The Compram methodology on handling complex societal problems will be applied to analyse whether the methodology is suitable on this group of war-affected children. The Compram methodology is a multi disciplined, multi level, multi actor methodology based on the theory of societal complexity. The methodology gives guidelines to handle real life complex societal problems.
Keywords: OR in societal problem analysis, Taboo research, COMPRAM methodology, children, war
Published in DKUM: 22.01.2018; Views: 954; Downloads: 148
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8.
Managing IT services : aligning best practice with a quality method
Miha Kastelic, Peter Peer, 2012, original scientific article

Abstract: Managing information technology services is becoming an increasingly difficult task. To support the management of IT services, different standards and methodologies have been developed. ITIL (short for IT Infrastructure Library) is the most commonly used best practice approach to effective IT Service Management to date. ITIL focuses primarily on what to do in order to ensure value of IT services, but it does not explain how to achieve this effectively. This shortcoming can be overcome by complementing the framework with other quality approaches to service management. In this context several methodologies are mentioned including the use of Six Sigma (6s) methodology. The statistical nature of the Six Sigma methodology enables us to analyze the vast amount of data gathered from the field of IT. Only after these value-based metrics are obtained can the overall health of the IT service be determined and the necessary improvement measures made. The aim of this paper is to analyze in detail the two approaches. We will establish a common link between them, with it the opportunity to complement ITIL with the Six Sigma methodology, and consequently set foundations for introduction of necessary measurable changes.
Keywords: IT service management, ITIL, Six Sigma methodology, DMAIC, continual improvement
Published in DKUM: 04.12.2017; Views: 1194; Downloads: 169
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9.
Introduction
Kirsten Hempkin, Melita Kukovec, Katja Težak, 2017, preface, editorial, afterword

Abstract: Introduction to the special issue of ELOPE: Addressing Learners’ and Teachers’ Needs: Keeping up with a Changing EFL World.
Keywords: English, foreign languages, teaching methodology, introduction, learners, teachers, EFL
Published in DKUM: 09.08.2017; Views: 1403; Downloads: 80
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10.
Designing a strategic mobility plan for small and medium sized cities using a multi-stage methodology : case of Celje
Uroš Kramar, Tina Cvahte Ojsteršek, Marjan Sternad, Darja Topolšek, 2015, original scientific article

Abstract: Urban mobility is one of the crucial factors of quality of life in cities. Therefore, an effective mobility system and its holistic planning are of utmost importance for sustainable and quality development of urban centres. This paper focuses on holistic and integrated strategic planning of a mobility system. The used multi % step methodology was tested on a case of a city of Celje, Slovenia. With the first round of focus groups, information about the specific urban mobility system was gathered which was used to develop a SWOT matrix. This was the foundation for the execution of a second round of focus groups, where the output was a proposition for a strategic plan for mobility development in small and medium sized cities.
Keywords: urban mobility, strategy, planning, multi-stage methodology
Published in DKUM: 03.08.2017; Views: 1224; Downloads: 162
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