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Sökning: AMNE:(TEKNIK OCH TEKNOLOGIER) > Luleå tekniska universitet

  • Resultat 1-10 av 31945
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1.
  • Forsberg, Lena, et al. (författare)
  • Gender and entrepreneurship in the horse-related industry
  • 2013
  • Ingår i: Journal of Business Diversity. - 2158-3889. ; 12:2, s. 75-93
  • Tidskriftsartikel (refereegranskat)abstract
    • In this paper, we examine the horse-related industry in terms of entrepreneurship and gender. Based on reports of the industry, a mapping of the entire sector (N= 7504) and a questionnaire (N=520) we find that the industry is portrayed as female gendered, but dominated by men. However, we also find evidence that the industry is changing gender, as women dominate among younger entrepreneurs. The strongest motives for the horse-related entrepreneurs (regardless of gender) are realizing a dream and being able to combine interest with work. We also found that entrepreneurs in this industry mainly network inside the industry.
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  • Linnéusson, Gary, et al. (författare)
  • In Need for Better Maintenance Cost Modelling to Support the Partnership with Manufacturing
  • 2016. - 1
  • Ingår i: Current Trends in Reliability, Availability, Maintainability and Safety. - Cham : Springer. - 9783319235967 - 9783319235974 ; , s. 263-282
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • The problem of maintenance consequential costs has to be dealt with in manufacturing and is core of this paper. The need of sustainable partnership between manufacturing and maintenance is addressed. Stuck in a best practice thinking, applying negotiation as a method based on power statements in the service level agreement, the common best possible achievable goal is put on risk. Instead, it may enforce narrow minded sub optimized thinking even though not intended so. Unfortunately, the state of origin is not straightforward business. Present maintenance cost modelling is approached, however limits to its ability to address the dynamic complexity of production flows are acknowledged. The practical problem to deal with is units put together in production flows; in which downtime in any unit may or may not result in decreased throughput depending on its set up. In this environment accounting consequential costs is a conundrum and a way forward is suggested. One major aspect in the matter is the inevitable need of shift in mind, from perspective thinking in maintenance and manufacturing respectively towards shared perspectives, nourishing an advantageous sustainable partnership.
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4.
  • Khodadad, Davood, et al. (författare)
  • Single shot dual-wavelength digital holography : calibration based on speckle displacements
  • 2014
  • Ingår i: International Journal of Optomechatronics. - : Informa UK Limited. - 1559-9612 .- 1559-9620. ; 8:4, s. 326-339
  • Tidskriftsartikel (refereegranskat)abstract
    • We present a calibration method which allows single shot dual wavelength online shape measurement in a disturbed environment. Effects of uncontrolled carrier frequency filtering are discussed as well. We demonstrate that phase maps and speckle displacements can be recovered free of chromatic aberrations. To our knowledge, this is the first time that a single shot dual wavelength calibration is reported by defining a criteria to make the spatial filtering automatic avoiding the problems of manual methods. The procedure is shown to give shape accuracy of 35 µm with negligible systematic errors using a synthetic wavelength of 1.1 mm.
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5.
  • Pesämaa, Ossi, et al. (författare)
  • How a learning orientation affects drivers of innovativeness and performance in service delivery
  • 2013
  • Ingår i: Journal of engineering and technology management. - : Elsevier BV. - 0923-4748 .- 1879-1719. ; 30:2, s. 169-187
  • Tidskriftsartikel (refereegranskat)abstract
    • Relying on organizational innovativeness for long-term growth and profitability can be difficult, time consuming, and expensive. In the context of service delivery of 395 strategic business units (SBU) in Israel's healthcare industry, this paper examines the role of a learning-orientation as a moderator in an integrative model of organizational innovativeness. We find moderation of the impacts of risk-taking, creativity, competitor benchmarking orientation, and environmental opportunities on innovativeness. Moreover, we find the influence on performance pronounced for high learning-oriented SBUs. The paper shows that learning orientation should be considered for understanding effective innovativeness work for competitive service delivery.
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  • Winkel, Jörgen, 1946, et al. (författare)
  • Scientific evidence suggests a changed approach in ergonomic intervention research
  • 2017
  • Ingår i: Osvalder A.-L., Blomé M. & Bodnar H. (Eds.) NES 2017, Conference Proceedings. - Lund. - 9789177531524
  • Konferensbidrag (refereegranskat)abstract
    • Ergonomic interventions have generally been unsuccessful in improving workers’ health, with concurrent rationalization efforts negating potentially successful intervention initiatives. We propose the two aims are considered simultaneously, aiming at the joint consideration of competitive performance and work environment in a long-term perspective (“organizational sustainability”). A prerequisite is a high level of dialogue between the different groups of stakeholders, and we argue that the Nordic countries, through high levels of trust and justice (social capital), have unique opportunity to carry out such research. The present authors bring forth the vision of “a Nordic Model for development of more sustainable production systems”.
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  • Galar, Diego, et al. (författare)
  • Big Data in Asset Management : Knowledge Discovery in Asset Data by the Means of Data Mining
  • 2016
  • Ingår i: Proceedings of the 10th World Congress on Engineering Asset Management (WCEAM 2015). - Cham : Springer. - 9783319270623 - 9783319270647 - 3319270648 ; , s. 161-171
  • Konferensbidrag (refereegranskat)abstract
    • Assets are complex mixes of complex systems, built from components which, over time, may fail. The ability to quickly and efficiently determine the cause of failures and propose optimum maintenance decisions, while minimizing the need for human intervention is necessary. Thus, for complex assets, much information needs to be captured and mined to assess the overall condition of the whole system. Therefore the integration of asset information is required to get an accurate health assessment of the whole system, and determine the probability of a shutdown or slowdown. Moreover, the data collected are not only huge but often dispersed across independent systems that are difficult to access, fuse and mine due to disparate nature and granularity. If the data from these independent systems are combined into a common correlated data source, this new set of information could add value to the individual data sources by the means of data mining. This paper proposes a knowledge discovery process based on CRISP-DM for failure diagnosis using big data sets. The process is exemplified by applying it on railway infrastructure assets. The proposed framework implies a progress beyond the state of the art in the development of Big Data technologies in the fields of Knowledge Discovery algorithms from heterogeneous data sources, scalable data structures, real-time communications and visualizations techniques.
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