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  • Jonsson, Simon
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
    Integrerad dokumentation: Operatör- och servicemanual inbyggd i HMI2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Valmet has received requests from customers to integrate manuals as part of the automation system. This report shows a concept of how that problem could be solved by incorporating manuals with functions and that the texts are available for reading. The goal is to be able to extract more information from HMI by integrating the operator and service manuals in the automation system. The method for this work was to start with a literature study on the topics: alarm, HMI and document integration. After a literature study, a development phase began that used the knowledge from the literature study to build the products. The final phase of the work was to test the functionality and evaluate the result. The result was a new alarm view with enhanced functionality, such as, for example, displaying additional information at clicks, an automatic maintenance system with low performance impact and PDF of the manuals available in HMI. The goals of the work are considered fulfilled since additional alarm information is available, a maintenance system is implemented, and the manual can be read in HMI. Future work could be to make the alarm view more robust by detecting and correcting errors, further integrating the contents of the manuals, possibly how to run the machine.

  • Ekholm, Sara
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities and Social Sciences.
    Swedish mothers' and fathers' worries about climate change: a gendered story2019In: Journal of Risk Research, ISSN 1366-9877, E-ISSN 1466-4461Article in journal (Refereed)
    Abstract [en]

    The present study considers whether parenthood has an impact on the worries that women and men have about climate change for the next generation and examines whether there are differences between the worries of mothers and fathers. The empirical material is based on a questionnaire-based survey that was administered in 2011 to a random selection of 3500 individuals in Sweden, with a response rate of 31%. The results indicate that parenthood, regardless of the parent’s gender, increases an individual’s worries about the impact of climate change on the next generation. Fathers are significantly more worried about climate change than men who are not parents; however, mothers do not worry significantly more than women who are not parents. In general, regardless of parenthood status, women worry about climate change more than men.

  • Karlsson, Emma
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Economics, Geography, Law and Tourism.
    Wisting, Elsa
    Mid Sweden University, Faculty of Human Sciences, Department of Economics, Geography, Law and Tourism.
    Money, money, money, must be funny, in the rich man's world:Lönar det sig för företag med arbeta hållbart?2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The increased challenge the world is facing and the growing interest and demands in sustainable investment make corporate social responsibility an increasingly and important questions for companies. Researchers even argue that this social responsibility that is expected from different stakeholders has become an issue for the companies, and as a result, reporting of such activities has become more common. Since there is no clear definition for what CSR means, it is up to the companies themselves to interpret the expression, which can lead to large differences in what they prioritize and work with. Some companies tend to adapt CSR in a way to draw attention to the benefits that exist, others as a way to satisfy their stakeholders. This is criticized for happening instead of genuinely working with socially responsible actions and implementing them in the organization. The purpose of this study was to examine the existing relationship between the CSR and profitability, focusing on European companies. Furthermore, the study has focused on examine this connection together with three control variables, firm size, in terms of number of employees, sector and geographical position.The selection in the study consisted of 352 European companies distributed in 11 sectors categorized according to the Global Industry Classification Standard (GICS) which has been tested in a path analysis which is a composition of bivariate and multivariate regression analysis, including all the variables. The results of the study indicate that larger companies work more with CSR in their organization, but it does not necessarily lead to a higher profitability. Furthermore, the result show that the sector has no significance meaning for the amount of CSR work or profitability, the result rather shows that the sector has a negative effect on profitability. Finally, the result showed that the geographical position of the European companies does not involve a greater amount of CSR work. This shows that, irrespective of the country in which the company is located, it does not necessarily mean more work with CSR, while the result showed that geographical position can have a positive effect on the profitability.

  • Sigvardsson, Samuel
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
    Optimering av kompressorstyrning: För kostnadseffektivare styrning av multipla kompressorer i ett tryckluftssystem2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In order to create competitiveness, optimization towards more energy and cost efficiency is always required, of several different processes. The plant used in this project, a cogeneration plant that was built as late as 2015, has been drawn with what appeared to be a non-optimal operation of the compressed air system with three identical air compressors whom are controlled by frequency converters. The objective of this project was to produce proposals for a more optimal control of the plant's three air compressors and to implement it to carry out an analysis of the result. An analysis of the origin operation showed that there was room for improvement of the control and that some controller parameters would need to be optimized. Two regulatory proposals were developed, which to a large extent are quite similar but with the great difference that the first proposal make use of the compressors' pressure controllers and the other proposal controlled the speed of the compressors directly from the PLC. At the end of this project, when the new regulatory proposals were to be implemented, the facility was in a three-week downtime for maintenance. This affected the optimization because the consumption of compressed air was low. This would mean that a parameter optimization would not be completely optimal. Moreover, since the compressor manufacturer did not choose to cooperate, there was no possibility of performing a parameter optimization on all controllers. Despite these circumstances, some optimization has probably occurred with the new regulatory proposal.