1. The link between asset risk management and maintenance performance : a study of industrial manufacturing companiesDamjan Maletič, H. Pačaiová, A. Nagyová, Matjaž Maletič, 2020, original scientific article Abstract: Purpose: The purpose of this paper is to examine risk management practices and their impact on performance. Specifically, the study aimed to examine risk management practices as part of physical asset management and their impact on maintenance management and its performance.
Methodology/Approach: The empirical data were obtained from 76 manufacturing companies. Partial Least Squares Path Modeling (PLS-PM) was applied to evaluate the measurement and structural model.
Findings: The results emphasized the importance of integrating risk management practices into asset management processes in order to improve performance outcomes.
Research Limitation/Implication: This study contributes to a better understanding of how companies could achieve higher performance results by implementing risk management practices. The results of this study can help managers identify key asset risk management practices. Despite the important implications that can be derived from this study, further research that would extend the model to include additional performance measures and/or asset management dimensions would be of great importance.
Originality/Value of paper: By analyzing the interrelationships between asset risk management practices and their direct and indirect effects on maintenance performance, the study provides important insights for the development of strategies to promote the novel and important discipline of asset management. Keywords: risk management, maintenance performance, physical assets, ISO 31000 Published in DKUM: 29.01.2025; Views: 0; Downloads: 2
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2. Maintenance of heavy trucks : an international study on truck driversSebastjan Škerlič, Edgar Sokolovskij, Vanja Erčulj, 2020, original scientific article Abstract: Since the implementation of modern approaches in operation maintenance, drivers are expected to be integrated into the entire system of maintenance in order to take over the professional competencies of maintenance workers. For this purpose, an international study was conducted on a sample of 249 truck drivers, with the aim to determine how maintenance in transport companies affects the role of heavy truck drivers in fleet maintenance. Based on the developed SEM model, it was determined that building an efficient maintenance infrastructure in transport companies enables the active participation of truck drivers in the company’s maintenance system. Drivers are capable of repairing minor failures, but only if they are proactive, which will affect their preventive behaviour. This can greatly benefit transport companies, as the results show that the vehicles are utilised more efficiently and in a better technical condition. The results therefore represent an important guideline for improving maintenance in transport companies, developing new competencies of truck drivers and upgrading existing knowledge in the development of modern operation maintenance. Keywords: maintenance, maintenance strategy, heavy trucks, truck drivers Published in DKUM: 18.12.2024; Views: 0; Downloads: 2
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3. System design of a vehicle based on the matrix approach using functional analysis of the maintenanceDušan Mežnar, 2021, original scientific article Abstract: The use of extended standard functional analysis of maintenance in the design phase of vehicle structure analysis is presented for the first time, where a matrix of the degree of importance of modules or parts, a matrix size between costs and benefits (costs–benefits), and a logistic support matrix (support index and repair time) are used. The use of these methods allows a designer to be able to determine, in the very early phase of the construction process, the important factors (structure, component price, reliability, repair costs, response time, logistic supportability) that have a major impact on vehicle maintenance. Extended functional analysis also allows us to define critical structures in the project specification of vehicles. A crucial issue in functional analysis is the very extensive implementation of research, drawing conclusions and findings with the basic goal of determining a set of indicators for the verification of assumptions and hypotheses. Keywords: maintenance, functional analysis, maintenance, vehicle design, structure design Published in DKUM: 30.09.2024; Views: 0; Downloads: 6
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4. Commit-level software change intent classification using a pre-trained transformer-based code modelTjaša Heričko, Boštjan Šumak, Sašo Karakatič, 2024, original scientific article Abstract: Software evolution is driven by changes made during software development and maintenance. While source control systems effectively manage these changes at the commit level, the intent behind them are often inadequately documented, making understanding their rationale challenging. Existing commit intent classification approaches, largely reliant on commit messages, only partially capture the underlying intent, predominantly due to the messages’ inadequate content and neglect of the semantic nuances in code changes. This paper presents a novel method for extracting semantic features from commits based on modifications in the source code, where each commit is represented by one or more fine-grained conjoint code changes, e.g., file-level or hunk-level changes. To address the unstructured nature of code, the method leverages a pre-trained transformer-based code model, further trained through task-adaptive pre-training and fine-tuning on the downstream task of intent classification. This fine-tuned task-adapted pre-trained code model is then utilized to embed fine-grained conjoint changes in a commit, which are aggregated into a unified commit-level vector representation. The proposed method was evaluated using two BERT-based code models, i.e., CodeBERT and GraphCodeBERT, and various aggregation techniques on data from open-source Java software projects. The results show that the proposed method can be used to effectively extract commit embeddings as features for commit intent classification and outperform current state-of-the-art methods of code commit representation for intent categorization in terms of software maintenance activities undertaken by commits. Keywords: software maintenance, code commit, mining software repositories, adaptive pre-training, fine-tuning, semantic code embedding, CodeBERT, GraphCodeBERT, classification, code intelligence Published in DKUM: 14.08.2024; Views: 87; Downloads: 11
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6. NiaNetAD: Autoencoder architecture search for tabular anomaly detection powered by HPCSašo Pavlič, Sašo Karakatič, Iztok Fister, 2023, published scientific conference contribution Keywords: predictive maintenance, autoencoder, anomaly detection, nature-inspired algorithms, optimization, high-performance computing, unsupervised learning Published in DKUM: 26.01.2024; Views: 447; Downloads: 0 |
7. Korporativno produktivno vzdrževanje tehničnih napravEdvard Krieger, 2021, master's thesis Abstract: V magistrski nalogi predstavljamo korporativno produktivno vzdrževanje (KPV) tehničnih naprav, ki je zasnovano na osnovi integracije pozitivnih lastnosti do sedaj nam znanih postopkov vzdrževanja. Osnova je metoda Celovitega produktivnega vzdrževanja (Total Productive Maintenance – TPM), ki je bila v prejšnjem stoletju zasnovana na Japonskem. Nekatere stebre te metode smo spremenili (nadgradili) na osnovi naših izkušenj, ki smo jih z leti pridobivali na področju vzdrževanja tehničnih naprav. Kot primer v nalogi predlagamo implementacijo KPV na področju vzdrževanja avtomatskih zunanjih defibrilatorjev (Automated External Defibrillator – AED) na osnovi naših praktičnih izkušenj in podajamo prednosti takega vzdrževanja. Keywords: vzdrževanje, Total Productive Maintenance, korporativno produktivno vzdrževanje, geostrateško položaj, defibrilator Published in DKUM: 17.05.2021; Views: 1061; Downloads: 72
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8. International Conference Fluid Power 2019 : Conference Proceedings2019 Abstract: The International Fluid Power Conference is a two day event, intended for all those professionally-involved with hydraulic or pneumatic power devices and for all those, wishing to be informed about the ‘state of the art’, new discoveries and innovations within the field of hydraulics and pneumatics. The gathering of experts at this conference in Maribor has been a tradition since 1995, and is organised by the Faculty of Mechanical Engineering at the University of Maribor, in Slovenia. Fluid Power conferences are organised every second year and cover those principal technical events within the field of fluid power technologies in Slovenia, and throughout this region of Europe. This year's conference is taking place on the 19th and 20th September in Maribor. Keywords: fluid power technology, components and systems, control systems, fluids, maintenance and condition monitoring Published in DKUM: 24.02.2020; Views: 1383; Downloads: 45
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9. Creation of own reserves for own shares in the acquisition of own shares for withdrawal by simplified procedure under Slovenian law where the consideration is paid in instalmentsGregor Drnovšek, 2018, original scientific article Abstract: During the process of withdrawing own shares, the rules that are relevant, among others, to their acquisition by the company are regulations governing the creation of reserves for own shares. The regulations are clear in cases where the company acquires their own shares simultaneously with the payment of the purchase price. This article will pertain to the proper application of these regulations according to Slovenian law, specifically in cases where the company pays the purchase price for their own shares, which it intends to withdraw after acquisition, in instalments, and acquires their own shares only after paying the last instalment of the purchase price. Keywords: reserves for own shares, protection of creditors, purchase price paid in instalments, capital maintenance principle, withdrawal of own shares, joint-stock company, balance sheet law Published in DKUM: 03.08.2018; Views: 1509; Downloads: 335
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10. INTERACTION BETWEEN QUALITY MANAGEMENT, PRODUCTION AND MAINTENANCE PERFORMANCEDamjan Maletič, 2015, doctoral dissertation Abstract: Many organisations invest a considerable amount of capital and resources, implementing new techniques to improve their performance. An effective management of production and maintenance and processes is vital for economic viability and a long term survival of many industries. In fact, an effective and efficient maintenance process is essential to assure asset performance. With this recognition, the asset and maintenance management has become an indispensable element of strategic thinking of asset owners and asset managers.
This research aims to investigate the interaction between quality management, production and maintenance performance. The relevant theoretical foundations and research gaps are presented first, followed by development of a conceptual framework. The framework builds upon resource-based theory (RBT) literature to develop a conceptual framework, mainly to understand how company’s resources could contribute to company’s performance. Based on this theoretical underpinning two main research streams are studied, namely quality management in maintenance and asset management.
Different sources of data were utilized to answer the proposed research questions. The thesis includes two large-scale surveys (among Slovenian organizations as well as an international survey conducted in Slovenia, Sweden, Poland, Slovakia, Greece and Turkey) and two empirical case studies.
The outcome of regression analysis provides the evidence that quality management orientation is an important predictor of maintenance performance. By testing the impact of quality management orientation on maintenance performance, this research shows that strong foundation on quality management orientation is an effective way of improving maintenance performance.
Further, by examining continuous improvement in relation to maintenance performance, this research seeks to examine the role of quality management practices in achieving maintenance performance. In this regard it was found that continuous improvement significantly and positively affects the maintenance performance. In addition, results of this research revealed a mediator effect of continuous improvement on the relationship between quality management orientation and maintenance performance.
Moreover, this research examines the relationship between physical asset management practices and sustainability and operational performance as well. The research is based on a premise that asset management, which comprises of risk management practices, performance assessment practices, life cycle management practices, policy & strategy practices, leads to improved organizational performance. The results of this research provide the evidence to support the hypotheses and to demonstrate that organizations can benefit from the implementation of asset management practices. The MANOVA furthermore provides interesting insights into the effects of asset management practices on the organizational performance. The results indicate that there are significant mean differences in organizational performance dimensions (as measured by the business performance, environmental performance, social performance and operational performance) for low and high levels of asset management practices. Therefore, by focusing on asset management practices, organizations can expect to achieve higher performance outcomes.
In addition a comparison between Slovenian and Polish data subset was performed. The results revealed some distinct elements, namely regarding the performance outcome. For example, the results indicate that Slovenian organizations achieved higher scores in business, environmental and operational performance, while Polish organizations achieved higher scores in social performance. Keywords: quality management, asset management, maintenance, production, performance Published in DKUM: 12.06.2018; Views: 2032; Downloads: 136
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