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  • 151.
    Ingwald, Anders
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Institutionen för teknik och design. systemekonomi.
    Kans, Mirka
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Institutionen för teknik och design. systemekonomi.
    Al-Najjar, Basim
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Institutionen för teknik och design. systemekonomi.
    A database model supporting a maintenance decision support system for monitoring and assessing the technical and financial condition of a production process2004Ingår i: Proceedings of MIMAR 2004 - 5th IMA International Conference on Modelling in industrial maintenance and reliability: Impact on practice, 2004, s. 290-Konferensbidrag (Refereegranskat)
    Abstract [en]

    Maintenance impact on companies' business is well established. It should no longer be considered as a cost-centre; instead it should be treated as a profit-generating centre, since its close relation to companies' internal efficiency. Cost-effective decisions in maintenance require a system for monitoring and assessing the performance of maintenance and its impact on company's profitability. In this article we present a database model, which will be the foundation of a decision support system for monitoring and assessing production process profitability and competitiveness. The database model was developed based on two case studies made at two different companies and later successfully tested.

  • 152.
    Jadim, Ramsey
    et al.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Ingwald, Anders
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT). Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    A Review Study of Condition Monitoring and Maintenance Approaches for Diagnosis Corrosive Sulphur Deposition in Oil-Filled Electrical Transformers2020Ingår i: New Paradigm of Industry 4.0: Internet of Things, Big Data & Cyber Physical Systems / [ed] Srikanta Patnaik, Springer, 2020, s. 133-144Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    In recent years, many unplanned hazard failures of oil-filled electrical transformers have been reported due to presence of corrosion in form of semi-conductor Copper Sulphide (Cu2S) which result in formation Corrosive Sulphur Deposition (CSD) on the significant internal components. Formation of CSD leads to a continuous current path lead to overheating fault and deterioration of insulation system which can turn towards transformer failure. The purpose of this study is to establish an efficient maintenance plan of corrosion based on relevant Condition Monitoring (CM) to reduce the transformer failures. In this paper, many investigations have been reviewed to get sufficient data to understand and describe currently applied CM for diagnose the corrosion inside the transformers. The problem addressed is: is the currently applied CM relevant for early and definitely detection of the corrosion to reduce the probability of failures? The major result is the described gaps between the currently applied CM and selection of relevant CM suggested for providing definitely indication of corrosion. The currently CM implies two techniques; oil analysis based only on evaluation the quality of the oil against corrosion and electrical testing based on the variation of electrical properties of the transformer which can be occurred due to corrosion process as well as other faults. Conclusion of this review is a need to develop a relevant CM of corrosion for establishing a dynamic cost-effective Condition Based Maintenance (CBM) to prevent unplanned hazard failures at early stage which can reduce the negative impacts such as industries economic loss and hazard effect on manpower life as well as environment.

  • 153.
    Jadim, Ramsey
    et al.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Ingwald, Anders
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT). Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    On the Condition Monitoring and Maintenance Approaches for Corrosive Sulphur Deposition in Oil-Filled Electrical Transformers2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    The purpose of this study is to establish an efficient maintenance plan based on relevant Condition Monitoring (CM) to reduce unplanned hazard failures due to presence of Corrosive Sulphur Deposition (CSD) in transformers. Many investigations have been reviewed to get sufficient data to understand and describe applied CM used in the maintenance plan. Problem addressed is: is the currently applied CM relevant for early detection the corrosion to reduce the probability of failures? The major result is the described gaps between the currently applied CM and selection of relevant CM suggested for providing specific indication of corrosion fault to approach cost-effective Condition Based Maintenance (CBM). The main conclusion: there is a need to develop a relevant CM technique to detect CSD at early stage and establishing a cost-effective CBM to reduce the negative impacts of failures such as industries economic loss and hazard effect on manpower life as well as environment.

  • 154.
    Maletic, Damjan
    et al.
    Univ Maribor, Slovenia.
    Maletic, Matjaz
    Univ Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomiscek, Bostjan
    Univ Wollongong Dubai, United Arab Emirates.
    An Analysis of Physical Asset Management Core Practices and Their Influence on Operational Performance2020Ingår i: Sustainability, E-ISSN 2071-1050, Vol. 12, nr 21, s. 1-20, artikel-id 9097Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The commitment of organisations to physical assets management (PAM) has recently received considerable attention in theory and practice. Indeed, PAM plays a key role in asset-intensive organizations and is also considered as a principal actor within Industry 4.0. Therefore, this paper aims to examine the PAM core practices and the performance implications of integrating these practices into business, in particular by assessing their impact on operational performance. Survey data were collected from managers in 138 international and local organisations. The data was analysed using Partial Least Squares Path Modeling (PLS-PM). The study validates the second-order construct consisting of PAM latent variables, namely Strategy and Planning, Risk management, Lifecycle Delivery, Asset Information, and Asset Review. The results have shown that PAM core practices directly influence operational performance. This paper is a response to recent calls for empirical studies on the organisational approaches that can increase the success of organisations.

  • 155.
    Maletic, Damjan
    et al.
    University of Maribor.
    Maletic, Matjaz
    University of Maribor.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomiscek, Bostjan
    University of Wollongon, Dubai.
    On a design of a maintenance performance measurement system: A sustainability persprctives2017Ingår i: 36th International Conference on Organizational Science Development: Responsible Organization / [ed] Iztok Podbregar, University of Maribor Press , 2017, s. 509-518Konferensbidrag (Refereegranskat)
    Abstract [en]

    Measuring maintenance performance is important for companiesto monitor whether their planned objectives are achieved or not. It isessential to have a good overview about the performance of maintenanceprocesses in order to align maintenance objectives with the manufacturingand company’s objectives. This can be attained through a propermaintenance performance measurement system which is consisted ofindicators for measuring and monitoring the important elements of themaintenance function. A framework for maintenance performancemeasurement based on sustainability aspects is proposed. Additionally, anoverview of maintenance indicators is presented. The relevant elementsthat are needed to develop a maintenance performance measurementsystem are discussed in this study as well. Findings derived from this studyhave relevant practical implications as measuring and monitoring ofmaintenance performance measures is vital in detecting the deviations, aswell as to take timely actions, and nevertheless to achieve the desiredobjectives. In this regard, presented maintenance performance indicatorscan be useful for asset managers to develop an effective maintenanceperformance measurement system.

  • 156.
    Maletic, Damjan
    et al.
    University of Maribor, Slovenia.
    Maletic, Matjaz
    University of Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomiscek, Bostjan
    University of Maribor, Slovenia.
    The role of maintenance in improving company’s competitiveness and profitability: A case study in a textile company2014Ingår i: Journal of Manufacturing Technology Management, ISSN 1741-038X, E-ISSN 1758-7786, Vol. 25, nr 4, s. 441-456Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose - The purpose of this paper is to examine the role of maintenance in improving company’s competitiveness and profitability. In the first part the paper aims to discuss the potential improvement areas from the company perspective. Second part of this paper examines maintenance impact on company’s business.

    Design/methodology/approach - An empirical case study was utilised aiming to provide an understanding of the role of maintenance in improving company’s business. The empirical data for this study was collected from a Slovenian textile company. A gap analysis was used in order to address the research problem and to identify potential improvement areas.

    Findings - Based on the gap analysis, the results suggest that from respondents’ points of view, maintenance practices related to condition based maintenance (CBM) approach represent the highest opportunity for improvement. The most notable empirical results of the case study showed that around 3 % of additional profit could be generated at weaving machine, especially if all unplanned stoppages and loss of quality due to decrease in the productivity would be prevented.

    Practical implications - This paper demonstrates to managers the potential benefits of maintenance policy in terms of productivity, quality and profitability. In this regard, this paper builds on a premise that company can gain higher performance benefits using more effective maintenance policy.

    Originality/value - The proposed conceptual model contributes to the existing literature by showing the interactions between maintenance and company’s competitiveness and profitability. Empirical findings of this study therefore, acknowledge maintenance’s potential of increasing the overall profit. In addition this study advances prior studies by utilizing a gap analysis which is rare in this type of research.

  • 157.
    Maletic, Damjan
    et al.
    University of Maribor, Slovenia.
    Maletic, Matjaz
    University of Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gotzamani, Katerina
    University of Macedonia, Greece.
    Gianni, Maria
    University of Macedonia, Greece.
    Kalinowski, T. Bartosz
    University of Lodz, Poland.
    Gomiscek, Bostjan
    University of Wollongong in Dubai, United Arab Emirates.
    Contingency Factors Influencing Implementation of Physical Asset Management Practices2017Ingår i: Organizacija, ISSN 1318-5454, E-ISSN 1581-1832, Vol. 50, nr 1, s. 3-16Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose: The purpose of this empirical study is to examine the role of two contingency factors, i.e. uncertainty andcompetitiveness in relation to physical asset management (PAM) practices as well as to maintenance key performanceindicators. The research is based on a premise that PAM, which was defined by risk management practices,performance assessment practices, life cycle management practices, and policy & strategy practices, has becomean indispensable element of strategic thinking of asset owners as well as maintenance and asset managers. Thepurpose of this study is to advance the understanding of how organizations that face high or low level of uncertaintyand competitiveness respond in terms of PAM deployment.Methodology/Approach: This study employed a data set based on a large-scale survey among organizations insix European countries (i.e. Slovenia, Poland, Greece, Sweden, Turkey and Slovakia). Data were collected from 138organizations located in the above-mentioned countries to conduct the study.Findings: The results show that organizations that are faced with high level of uncertainty and competitiveness aremore engaged in the deployment of PAM practices. Moreover, results show that when organizations are facing highlevels of competitiveness they are using KPIs to a greater extent than organizations under low levels of competitiveness.Originality/value: From a theoretical perspective, this study contributes to the contingency theory by providingempirical evidence whether a context-dependent approach to PAM is needed. The findings also provide insights formanagers on how to respond to the competitive pressure as well as how to customize PAM practices in order to adaptto the changes in dynamic organizational environment.

  • 158.
    Maletic, Damjan
    et al.
    University of Maribor, Slovenia.
    Maletic, Matjaz
    University of Maribor, Slovenia.
    Lvrencic, Viktor
    C&G d.o.o. Ljubljana, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomiscek, Bostjan
    University of Maribor, Slovenia.
    An application of analytic hierarchy process (AHP) and sensitivity analysis for maintenance policy selection2014Ingår i: Organizacija, ISSN 1318-5454, E-ISSN 1581-1832, Vol. 47, nr 3, s. 177-188Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose – The purpose of this paper is to apply an analytic hierarchy process (AHP) for the evaluation/selection of maintenance policy.

    Methodology/Approach – The paper adopts a case study approach of selecting most appropriate maintenance policy in the case of Slovenian paper mill company. Several steps of the AHP method are used in order to structure the decision making process. Five possible alternatives are considered: failure based maintenance, preventive maintenance, total productive maintenance, reliability centered maintenance and total quality maintenance.

    Findings – This paper proposes a framework for maintenance policy selection based on the AHP methodology. The framework was applied to select the most appropriate maintenance policy in a paper mill company. By performing a sensitivity analysis, it was revealed that the final outcome remained stable in all cases when the weights of the main criteria were increased for 25 percent.

    Originality/value – The paper contributes to the literature by providing a framework for decision making process regarding the maintenance policy selection. In addition, this paper utilizes an exponentially weighted moving average (EWMA) chart for performing a consistency test. Moreover, a sensitivity analysis also presents an important implication of this study.

  • 159.
    Maletič, Damjan
    et al.
    University of Maribor, Slovenia.
    Lovrenčič, Viktor
    C&G D.O.O. Ljubljana, Slovenia.
    Maletič, Matjaž
    University of Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomišček, Boštjan
    University of Maribor, Slovenia.
    Maintenance Solutions for Cost-Effective Production: A Case Study in a Paper Mill2015Ingår i: Engineering Asset Management - Systems : Professional Practices and Certification: Proceedings of the 8th World Congress on Engineering Asset Management (WCEAM 2013) & the 3rd International Conference on Utility Management & Safety (ICUMAS) / [ed] Tse, PW; Mathew, J; Wong, K; Lam, R; Ko, CN, Springer, 2015, s. 375-385Konferensbidrag (Refereegranskat)
    Abstract [en]

    For companies, in order to stay competitive, it is necessary to continuously increase the effectiveness and efficiency of their production processes. Therefore the purpose of this chapter is to discuss the role of maintenance in achieving the competitive advantages using cost-effectiveness aspect of maintenance process. In this regard, the chapter illustrates/discusses the impact of mechanical and electrical failures on company’s business on an example of a paper mill where processes are running 24/7. Thus, this paper presents the role of vibration-based maintenance (VBM) in enhancing the production and maintenance performance continuously and cost-effectively. Using empirical data collected from a paper mill case study, we found that company could avoid the profit losses even to a greater extent if it would improve the effectiveness of the VBM. With respect to the electrical causes of failures, a live working technique for improving the reliability and availability of the paper machine is proposed. Therefore, maintenance solution concerning the paper machine is suggested and discussed as well as potential benefits are highlighted. The results supported the notion that there is a positive association between the reduction of the unplanned stoppages and potential savings. The results have also shown that there is a need for more systematic approach, and a more holistic view of the maintenance function for establishing and running a cost-effective maintenance policy in the paper mill under consideration.

  • 160.
    Maletič, Damjan
    et al.
    University of Maribor, Faculty of Organizational Sciences, Slovenia .
    Maletič, M.
    University of Maribor, Faculty of Organizational Sciences, Slovenia .
    Al-Najjar, Basim
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för teknik, TEK.
    Gomišček, B.
    University of Maribor, Faculty of Organizational Sciences, Slovenia .
    The role of maintenance regarding improving product quality and company’s profitability: a case study2012Ingår i: Workshop on Advanced Maintenance Engineering, Sevices and Technology (A-MEST'12), 2012Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents a study, which examines the role of maintenance regarding improving product quality and company’s profitability. The empirical data for this study was drawn from a Slovenian company in order to address the research problem. The main results of the case study showed, that 3.22 % of profit could be generated at weaving machine, if all unplanned stoppages and loss of quality due to decrease in the productivity would be prevented. Results also showed that due to productivity improvement, quality rate would be improved for approximately 2 %. These findings therefore, indicate that maintenance has impact on product quality and company’s profitability. Thus, these findings also acknowledge maintenance as a profit centre.

  • 161.
    Maletič, Damjan
    et al.
    University of Maribor, Slovenia.
    Maletič, Matjaž
    University of Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomišček, Boštjan
    University of Wollongong in Dubai, UAE.
    Asset life cycle management: towards improving operational performance2017Ingår i: 20th QMOD-ICQSS Conference 2017, 4-7 August, 2017, Helsingör / [ed] Su Mi Dahlgaard-Park and Jens J. Dahlgaard, Lund, Sweden: Lund University Library Press , 2017, s. 1-7Konferensbidrag (Refereegranskat)
    Abstract [en]

    Purpose – The purpose of this paper is to analyse the links between physical asset management policy and strategy, life cycle management of physical assets and operational performance. Even though there is some empirical evidence that physical asset management practices associate with performance outcomes of an organization, there is a need to further explore the interrelationship between physical asset management practices and organizational performance outcomes.Methodology/Approach – The data used in this study were obtained from a research project conducted by a team of international researchers in the field of maintenance and asset management. The target survey population consisted of international e-mail lists of managers across a wide range of functions. In total, 138 usable responses were collected during the given time window. The questionnaire was responded by organizations that are located in located in Slovenia, Poland, Greece, Sweden, Turkey and Slovakia, in portion of 31.9%, 34.1%, 16.7%, 6.5%, 5.8% and 5.1%, respectively. In terms of organizational size (following the guidelines of the Statistical Office of the Republic of Slovenia), 12.2% of the sample was composed of micro-enterprises having five or fewer employees, 17.4% were small-sized organizations employing 50 or less employees, 31.3% were medium sized organizations, employing 51–250 employees, 21.7% organizations were with 251–500 employees and 12.2% organizations were with more than 500 employees. Based upon Slovenian Standard Industrial Classification Codes (SIC), most respondents (39.3%) indicated that their organization is in the manufacturing industry.We applied the Partial Least Squares Path Modeling (PLS-PM) using the R package plspm to assess measurement and structural model (Sanchez, 2013). The method is suitable for studying complex multivariate relationships among observed and latent variables. PLS-PM uses an iterative algorithm that firstly provides weights, loadings and other relevant statistics for estimation of the blocks of the measurement model. Subsequently, PLS-PM algorithm estimates the path coefficients in the structural model (Esposito Vinzi et al., 2010).Findings – Within the scope of PLS-PM measurement model (outer model) assessment, loadings and communalities were checked. As suggested by Sanchez (2013) loadings should be above the value of 0.7. The outer model assessment results (loadings, weights and communalities) for studied constructs are presented in Appendix 1 and 2. According to the results, characteristics of measurement model appears to be suitable for further analysis of PLS-PM. There were a few indicators with loadings just below the recommended value of 0.7, however, they were kept in the measurement model due to content considerations.

  • 162.
    Maletič, Damjan
    et al.
    University of Maribor, Slovenia.
    Maletič, Matjaž
    University of Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomišček, Boštjan
    Hamdan Bin Mohammed Smart University, United Arab Emirates.
    Continuous Quality Improvement and Business Performance: The Mediating Role of Physical Asset Management2022Ingår i: WCEAM 2021 / [ed] Pinto J.O., Kimpara M.L., Reis R.R., Seecharan T., Upadhyaya B.R., Amadi-Echendu J., Springer, 2022, s. 22-32Konferensbidrag (Refereegranskat)
    Abstract [en]

    This study examines the mediating effects of physical/engineering asset management on the relationship between continuous quality improvement and business performance. Using empirical data based on survey data from six European countries (i.e. Greece, Poland, Slovakia, Slovenia, Sweden and Turkey), this study used mediation analysis to address the research problem. A macro for SPSS was used to estimate the size of an indirect effect of continuous quality improvement on business performance by a proposed mediator. The results of this study show that physical asset management mediates the effect of continuous quality improvement on business performance. This study provides valuable insights into mechanisms that have the potential to improve business performance. The results contribute to a better understanding of how companies could achieve higher performance outcomes through the introduction of continuous quality improvement and through physical asset management practices. 

  • 163.
    Maletič, Damjan
    et al.
    University of Maribor, Slovenia.
    Maletič, Matjaž
    University of Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomišček, Boštjan
    University of Wollongong, Dubai.
    Development of a model linking physical asset management to sustainability performance: An empirical research2018Ingår i: Sustainability, E-ISSN 2071-1050, Vol. 10, nr 12, artikel-id 4759Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article is aimed at exploring the relationship between physical asset management (PAM)practices and sustainability performance. A framework of interrelated constructs was developed basedon the existing literature and consequently tested through empirical study. Survey data were collectedfrom organizations operating in six European countries (i.e., Greece, Poland, Slovakia, Slovenia,Sweden, and Turkey) and analyzed using Partial Least Squares Path Modeling (PLS-PM). The resultsoffer support for the proposed hypotheses, showing that PAM practices positively influence thesustainability performance outcomes, namely economic, environmental, and employee-related socialperformance. Overall, this study demonstrates that a PAM framework can be conceptualized byfour sub-constructs, namely physical asset risk management, physical asset performance assessment,physical asset lifecycle management, and physical asset policy and strategy. Finally, this studybrings to light some theoretical and managerial implications as well as directions for future research.The findings of the study underscore PAM areas in which managers should focus on in order tooptimize costs, performance, and risk exposures concerning the physical assets, and therefore enhancesustainability performance.

  • 164.
    Maletič, Damjan
    et al.
    University of Maribor, Slovenia.
    Maletič, Matjaž
    University of Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomišček, Boštjan
    University of Wollongong in Dubai, United Arab Emirates.
    Examination of the Mediating Effects of Physical Asset Management on the Relationship Between Sustainability and Operational Performance2019Ingår i: Advances in Manufacturing II: Volume 3 - Quality Engineering and Management / [ed] Hamrol A., Grabowska M., Maletic D., Woll R., Springer, 2019, s. 33-43Konferensbidrag (Refereegranskat)
    Abstract [en]

    This study examines the mediating effects of physical asset management on the relationship between sustainability and operational performance. Using empirical data based on survey data from six European countries (i.e. Greece, Poland, Slovakia, Slovenia, Sweden and Turkey), this study utilized mediation analysis in order to address the research problem. A macro for SPSS was used to estimate the size of an indirect effect of sustainability on operational performance through a mediator (physical asset management). Results of this study show mediator effect of physical asset management on the relationship between sustainability and operational performance. The paper provides valuable insights into mechanism that have a potential to enhance operational performance. The results contribute to a better understanding on how organizations could achieve higher operational performance outcomes by implementing sustainability and physical asset management practices. © 2019, Springer Nature Switzerland AG.

  • 165.
    Maletič, Damjan
    et al.
    University of Maribor, Slovenia.
    Maletič, Matjaž
    University of Maribor, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gotzamani, Katerina
    University of Macedonia, Greece.
    Gianni, Maria
    University of Macedonia, Greece.
    Kalinowski, T. Bartosz
    University of Lodz, Poland.
    Pačaiová, Hana
    Technical University of Kosice, Slovakia.
    Nagyová, Anna
    Technical University of Kosice, Slovakia.
    Gomišček, Boštjan
    University of Wollongong, Dubai.
    The role of contingency factors in physical asset management: An empirical examination2016Ingår i: Euromaintenance 2016 proceedings, ARTION Conferences & Events , 2016, s. 93-99Konferensbidrag (Refereegranskat)
    Abstract [en]

    This research presents an empirical study, which examines the role of contingency factors, i.e. uncertainty and competitiveness in relation to physical asset management (PAM) practices. The research is based on a premise that PAM, which comprises of risk management practices, performance assessment practices, life cycle management practices, policy & strategy practices, has become an indispensable element of strategic thinking of asset owners as well as maintenance and asset managers. The purpose of this study is to advance the understanding of how organizations that face high or low level of uncertainty and competitiveness respond in terms of PAM deployment.

    This study employed a data set based on a large-scale survey among organizations in six European countries (i.e. Slovenia, Poland, Greece, Sweden, Turkey and Slovakia). The results show that organizations that are faced with high level of uncertainty and competitiveness are more engaged in the deployment of PAM practices. From a theoretical perspective, this study contributes to the contingency theory by providing empirical evidence whether a context-dependent approach to PAM is needed. The findings also provide insights for managers on how to respond to the competitive pressure as well as how to customize PAM practices in order to adapt to the changes in dynamic organizational environment.

  • 166.
    Maletiča, Damjan
    et al.
    University of Maribor, Faculty of Organizational Sciences, Slovenia.
    Maletič, Matjaž
    University of Maribor, Faculty of Organizational Sciences, Slovenia.
    Lovrenčič, Viktor
    University of Maribor, Faculty of Organizational Sciences, Slovenia.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Gomišček, Boštjan
    University of Maribor, Faculty of Organizational Sciences, Slovenia.
    An application of analytic hierarchy process (AHP) and sensitivity analysis for maintenance policy selection2013Ingår i: 16th QMOD-ICQSS Proceedings Quality Management and Organizational Development Conference: 4th-6th September 2013, Portoroz, Slovenia / [ed] Su Mi Dahlgaard-Park, Jens J. Dahlgaard, Boštjan Gomišček, Moderna organizacija, Faculty of Organizational Sciences , 2013, s. 1173-1188Konferensbidrag (Refereegranskat)
    Abstract [en]

    Purpose – The purpose of this paper is to apply an analytic hierarchy process (AHP) for the evaluation/selection of maintenance policy.

    Methodology/Approach – The paper adopts a case study approach of selecting most appropriate maintenance policy in the case of Slovenian paper mill company. Several steps of the AHP method are used in order to structure the decision making process. Five possible alternatives are considered: failure based maintenance, preventive maintenance, total productive maintenance, reliability centered maintenance and total quality maintenance.

    Findings – This paper proposes a framework for maintenance policy selection based on the AHP methodology. The framework was applied to select the most appropriate maintenance policy in a paper mill company. By performing a sensitivity analysis, it was revealed that the final outcome remained stable in all cases when the weights of the main criteria were increased for 25 percent.

    Originality/value – The paper contributes to the literature by providing a framework for decision making process regarding the maintenance policy selection. In addition, this paper utilizes an exponentially weighted moving average (EWMA) chart for performing a consistency test. Moreover, a sensitivity analysis also presents an important implication of this study.

  • 167. Moniri, Ali
    et al.
    Ehsanifard, Keyvan
    Al-Najjar, Basim
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för maskinteknik (MT).
    Innovative DSS Utilising Available Data, Experience and Skills to Enhance Producing Asset Performance Cost-Effectively: A Case Study2014Ingår i: Proceedings of the 9th World Congress on Engineering Asset Management (WCEAM) 2014, University of Pretoria Publication , 2014Konferensbidrag (Refereegranskat)
    Abstract [en]

    Although maintenance still in many industries is interpreted as a necessary evil, nowadays by increasing competitions in business, decision-making in maintenance management gets higher priority in order to continuously reduce production cost and increase profit margin. Cost-effective maintenance decisions based on quantitative assessments of maintenance impact on production and its cost improve maintenance status and convert its rule from a cost to a profit-centre. In producing companies, it is vital to consider both economic and technical impact of maintenance to provide better chances for improving company profit margin. In this study, we propose a model, eMaintenance Decision Support System (eMDSS), for assisting companies to achieve these results followed by substantial results from a case study. The model application can be briefed in improvement of decision-making processes from technical and economic perspectives to direct them into the company profitability aligned with the company goals. Further, it proposes technical and economic indicators and improves utilization of maintenance resources including personnel skills and experience to enhance maintenance performance and develop cost-effective scenarios. eMDSS provides an intelligent facilitator which improves accurate decision-making and identifying and prioritizing maintenance problems, investments and follow up them. eMDSS is applied on a real case. Reliability of the achieved results are tested and approved in detail. It is used successful in evaluating previous technical and economic decisions and selecting the most cost-effective scenario with a saving exceeding 133K€ and profit of 114K€ for the case equipment

  • 168.
    Pehrsson, Anders
    et al.
    Linnéuniversitetet, Fakultetsnämnden för ekonomi och design, Ekonomihögskolan, ELNU.
    Al-Najjar, BasimLinnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för teknik, TEK.
    Creation of Industrial Competitiveness: CIC 2001-20042005Samlingsverk (redaktörskap) (Övrigt vetenskapligt)
    Abstract [en]

    The prerequisites for international industrial competitiveness are constantly changing. Technical developments, widespread internationalization, and deregulations bring about more establishments and different competitive situations. Furthermore, customer needs and demands vary. All these changes affect to a high degree individual companies, industries and the society as a whole. However, we do not know enough about what constitutes industrial competitiveness and underlying processes. Therefore this question is pertinent:  

    How is industrial competitiveness created in constantly changing international environmnets?

    Finding answers to this all-embracing question is, thus, the foundation for the research presented in this book. The first part of the book presents separate projects which focus on industrial competitiveness from an internal effectiveness perspective, while the second part consists of projects which penetrate the subject from a business perspective. The final part starts with a discussion on the overall findings, and ends with conclusions in relation to the question above and specifications of the need for further research.

    The outcome of this book contributes to theory on sources of industrial competitiveness in general. More specifically, frameworks are developed comprising concepts and models in crucial areas such as business strategy, core competence, industrial marketing, quality management, interorganizational relations and internal effectiveness. 

    Companies may benefit from the results as it provides guidance and supportin the search for competitiveness, based on studies of high performing companies in different industries. The knowledge will also help in understanding crucial processes that effect economies and the society as a whole.

     

     

  • 169.
    Sherwin, David
    et al.
    Lund University.
    Al-Najjar, Basim
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Institutionen för teknik och design.
    Practical models for condition monitoring inspection intervals1999Ingår i: Journal of Quality in Maintenance Engineering, ISSN 1355-2511, E-ISSN 1758-7832, Vol. 5, nr 3, s. 203-221Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Markov models find optimum inspection intervals for phased deterioration of monitored complex components in a system with severe down time costs. The number of (pseudo)-phases can be increased, but in most cases, simple models tracking actual states and their perception by the user will suffice, because of paucity of data and near-constant rates. The matrix is cyclic; it includes renewal and regression to earlier states, simplifying solution and matching observation. An example involves roller bearings in paper mills with three phases, no defect, possible defect, and final deterioration towards failure. In the last phase, continuous monitoring is used.

  • 170. Sherwin, David
    et al.
    Al-Najjar, Basim
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Institutionen för teknik och design.
    Practical models for condition monitoring inspection intervals1998Rapport (Övrigt vetenskapligt)
  • 171. Sherwin, David
    et al.
    Al-Najjar, Basim
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Institutionen för teknik och design.
    Practical models for condition monitoring inspection intervals1998Konferensbidrag (Refereegranskat)
  • 172. Shirivastav, O. P:
    et al.
    Al-Najjar, BasimVäxjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Institutionen för teknik och design.Rao, R. B. K. N.
    Condition monitoring and diagnostic engineering management : (COMADEM 2003): proceedings of the 16th International Congress, 27-29 August 2003, Växjö, Sweden2003Proceedings (redaktörskap) (Refereegranskat)
  • 173.
    Starr, Andrew
    et al.
    The University of Hertfordshire, UK.
    Al-Najjar, Basim
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för teknik, TEK.
    Holmberg, Kenneth
    VTT Technical Research Centre of Finland.
    Jantunen, Erkki
    VTT Technical Research Centre of Finland.
    Bellew, Jim
    Albarbar, Alhussein
    Maintenance Today and Future Trends2010Ingår i: E-maintenance / [ed] Kenneth Holmberg, London: Springer, 2010, 1, s. 5-37Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    This chapter describes the state of the art in maintenance and its future trends. The key areas that have influenced maintenance in the last 40 years are management of people and assets, and technological capability. These areas are important because they aim to take the best advantage of expensive resources, whether that advantage be profit, or to provide the best possible service with limited resources. The chapter first sets out the current range of maintenance in industrial practice. It is recognised that many businesses do not undertake the full extent of the work reported here, but it is our purpose to survey the state of the art. The chapter then continues to survey the influences of nascent technologies and ideas, before making some predictions about the future. Indeed, some of the most advanced condition-based maintenance effectively aims to predict the future. However, here we do not offer a crystal ball calibrated to international standards; we will constrain ourselves to an informed, independent opinion.

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