| 1. |
- Al-Douri, Yamur K., et al.
(författare)
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Model-based security system for data acquisition in e-maintenance using artificial immune system and cloud computing
- 2012
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Ingår i: International Journal of COMADEM. - 1363-7681. ; 15:4, s. 26-37
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Tidskriftsartikel (refereegranskat)abstract
- eMaintenance solutions are extensively used by the industry today. eMaintenance is an emerging technology aimed to support the industry to achieve effectiveness and efficiency in their maintenance process through enhanced use of Information and Communication Technology (ICT) . One of the essential components is an eMaintenance solution is data acquisition. Supervisory Control and Data Acquisition (SCADA) has been used to manage data acquisition is many industrial systems. Nowadays, modern SCADA systems are available through internet and other networks via IP protocol. An increased use of internet–based solution requires appropriate management approaches to improve the safety and security aspects of a system. Hence, this paper suggests a new security model based security for SCADA systems through Cloud computing and Artificial Immune System (AIS). Furthermore, the paper provides AIS, which is based on Decision Tree (C4.5 algorithm) using clustered feature set. The features set are selected from NSL-KDD cup. It is a new version of KDD dataset. As a result, two Antibodies are generated (that could recognize Normal and Antigen). After applying the resulted antibodies on the testing data set, the outputs are Normal, Antigen, and Unknown. Finally it is treated with Unknown as Antigen. As a result, high accuracy of the suggested model reaches 96.3%.
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| 2. |
- Al-Jumaili, Mustafa I., et al.
(författare)
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Aspects of Data Quality in eMaintenance: A Case Study of Process Industry in Northern Europe
- 2014
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Ingår i: Engineering Asset Management 2011. - London : Encyclopedia of Global Archaeology/Springer Verlag. - 9781447149927 - 9781447149934 ; , s. 41-51
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Konferensbidrag (refereegranskat)abstract
- Increased environmental awareness in the industry combined with the globalized market economy makes increasing demands for sustainable and efficient resource utilization. In this context, maintenance plays a critical role by linking business objectives to the strategic and operational activities aimed at retaining the system’s availability performance, cost-efficiency and sustainability. Performing maintenance effectively and efficiently requires corresponding infrastructure for decision-support provided through eMaintenance solutions. A proper eMaintenance solution needs to provide services for data acquisition, data processing, data aggregation, data analysis, data visualization, context-sensing etc. To en Quality of Service (QoS) in eMaintenance solutions, the performance of both system-of-interest, enabling systems and related processes have to be measured and managed. However, the QoS has to be considered on all aggregation levels and encompass the aspects of Content Quality (CQ), Data Quality (DQ) and Information Quality (IQ). Hence, the purpose of this paper is to study and describe some aspects of DQ in eMaintenance related to process industry in northern Europe.
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| 3. |
- Berglund, Filip, et al.
(författare)
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Health monitoring of mining mills with infrared thermography
- 2011
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Ingår i: Proceedings of the 24th International Congress on Condition Monitoring and Diagnosis Engineering Management. - : COMADEM International. ; , s. 1190-1196
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Konferensbidrag (refereegranskat)abstract
- Infrared thermography has been investigated as a non destructive testing method for health monitoring of rotating mining mills. The idea is to monitor the thermal differences on the mill surface with thermal camera in order to detect and maintain cracks and other material damage in the mill material. A general description of the thermography technique, the theory behind, advantages and drawbacks as well as its use in other applications is presented. To test the usefulness of the method, real life measurements with IR-camera have been performed on several mining mills at a mining company located in northern Sweden. The results from these measurements are presented and discussed in this article. Infrared thermography is a fast and relatively cheap inspection method which can find and monitor material damage in rotating mining mills and help the maintenance personal in taking the corrective maintenance decisions.
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| 4. |
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| 5. |
- Biswal, Munro, et al.
(författare)
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An integrated approach for open e-Maintenance
- 2010
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Ingår i: Proceedings of the 1st international workshop and congress on eMaintenance. - : Luleå tekniska universitet. - 9789174391206 ; , s. 107-114
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Konferensbidrag (refereegranskat)abstract
- The present day e-maintenance space is evolving with isolated legacy sub-systems or packages that span heterogeneous and domain specific industry verticals. Developing a unified platform for e-maintenance catering to the varied domains shall hence pose a major challenge. An open systems based platform for emaintenance can overcome some of these hurdles by defining the otherwise disparate systems as abstract entities with well defined public interfaces. The interfaces can be broadly classified based on the technology types, thus allowing individual vertical emaintenance applications to align with their respective business interests. In all, this shall greatly help in reducing the overall operating costs and at the same time provide increased flexibility, reusability and reliability. The underlying standard protocol, defined through a group consensus, shall be responsible for transport of the e-maintenance data between the distributed subsystems via the TCP/IP standard within multiple administrative domains of e-maintenance across wired and wireless networks. This paper also looks at e-maintenance from a systems integration perspective and illustrates how open systems based approach can help achieve integration better.
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| 6. |
- Candell, Olov, et al.
(författare)
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Development of information system for e-maintenance solutions within the aerospace industry
- 2011
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Ingår i: International Journal of Performability Engineering. - 0973-1318. ; 7:6, s. 583-592
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Tidskriftsartikel (refereegranskat)abstract
- Maintenance and support providers to modern aircraft need to manage an increasing amount of information generated by growing system complexity and stakeholder requirements. This introduces new risks in the information management process and makes traditional information services and systems inadequate. However, recent advancements in information and communication technology (ICT) have contributed to the emerging approach of e-Maintenance, which forms an important building block to achieve the desired information logistics. e-Maintenance enables remote and real time maintenance, and includes; collection, monitoring, analysis and distribution of data and information as decision-support to stakeholders of the maintenance and support processes, independent of organization or geographical location, 24 hours a day and 7 days a week (24/7). This paper describes a proposed development of information products by linking theories to practical methodologies and tools (e.g., Quality Function Deployment, QFD) through the development of a demonstrator of a stakeholder-based information product in the context of a modern combat aircraft. Read more about November 2011 P8 - Development of Information System for e-Maintenance Solutions within the Aerospace Industry by www.ijpe-online.com
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| 7. |
- Chattopadhyay, G., et al.
(författare)
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Work integrated blended learning for improvement by asset managers
- 2010
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Ingår i: 23rd International Congress on Condition Monitoring and Diagnostic Engineering Management. - Hikone : Sunrise Publishing. - 9784883254194 ; , s. 95-101
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Konferensbidrag (refereegranskat)abstract
- Work integrated blended learning for asst managers is targeted to the senior engineers and managers. Main purpose of this blended learning is to enhance asset management skills in establishing and managing capital intensive assets and infrastructures. A course in asset management systems in line with PAS55 was developed to reflect the best known practices in asset management, to cover some long-term but little understood issues, and to deliver it in such a way that it was highly effective from the point of view of industries, participants and the delivery team. It includes establishing asset management systems and standards, and taking effective decisions considering asset maintenance costs, risks and performance. This paper is to outline the needs of target audience and provide overview of the work integrated blended course for asset management system for improving decision making by asset managers
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| 8. |
- Chirumalla, Koteshwar, et al.
(författare)
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Performance Measurement Framework for Product–Service Systems Development : A Balanced Scorecard Approach
- 2013
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Ingår i: International Journal of Technology Intelligence and Planning (IJTIP). - Switzerland : Inderscience Publishers. - 1740-2832 .- 1740-2840. ; 9:2, s. 146-164
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Tidskriftsartikel (refereegranskat)abstract
- The paper proposes a framework for analysing the performances of product-service systems (PSSs) development processes using a balanced scorecard (BSC) as an instrument to guide the implementation and the evaluation of new methods and tools. Emerging from a case study in the aerospace industry, the paper discusses the main challenges in PSS development and proposes a performance measurement framework for PSS development based on multi-criteria indicators. Finally, the benefits of a framework for PSS development performance measurement are discussed.
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| 9. |
- Dandotiya, Rajiv, et al.
(författare)
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A systematic evaluation of devices for measuring abrasive wear of mill liners
- 2009
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Ingår i: 22nd International Congress on Condition Monitoring and Diagnostic Engineering Management. - Eibar : Fundaci n Tekniker. - 9788493206468 ; , s. 419-427
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Konferensbidrag (refereegranskat)abstract
- Inspection of the liner wear in the mill of an ore dressing plant is one of the critical parameters in the context of mill downtime and production performance. The total downtime cost during measurement can be reduced by a significant fraction by using appropriate measurement devices. Due to the different quality dimensions of a measuring device, e.g. the cost, accuracy, reliability and accessibility, it is necessary to select an appropriate device based on the specific needs of the industry. Customer satisfaction is perhaps the most important performance measure for the service quality of the device, and therefore this paper provides an approach to define the customer satisfaction with reference to the mentioned quality dimensions. The main aim of this paper is to determine a unified measure or quality index for the service quality of the measurement device across all the dimensions. Each quality index will then correspond to the total predicted usability of the particular measurement method based on the industry needs. Furthermore, this study also discusses the advantages and disadvantages of existing measurement methods and proposes an indirect measurement method to reduce the downtime during inspection.
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| 10. |
- Dandotiya, Rajiv, et al.
(författare)
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Optimal pricing and terminal location for a rail-truck intermodal service : a case study
- 2011
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Ingår i: International Journal of Logistics. - : Informa UK Limited. - 1367-5567 .- 1469-848X. ; 14:5, s. 335-359
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Tidskriftsartikel (refereegranskat)abstract
- To be competitive with other modes of transport, the railway needs to be cost-effective. In order to become more competitive in the logistics industry, Indian Railways has taken new initiative to improve their operations in recent years. A rail-truck intermodal transportation service for Indian Railways is described in this paper. The main focus of the present research is to optimize the freight rate and terminal location together, in order to minimize the total shipping cost of truckers while ensuring the targeted profit of the railway. A model has been developed for the determination of the optimal freight rate and the corresponding intermodal terminal location. The key regulators of this model are the price sensitivity of the trucker and profit guarantee for railways. A case study was developed on the Delhi - Mumbai freight corridor. An analysis was performed to gain insight into the trade-offs among shipment cost and terminal locations.
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