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  • 1.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Jensen, Kurt
    Syddansk Universitet, Odense, Danmark.
    Rosdahl, Hans
    Swedish School of Sport and Health Sciences, GIH, Stockholm.
    Breathing resistance in automated metabolic systems is high in comparison with the Douglas Bag method and previous recommendations2018In: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, ISSN 1754-3371, Vol. 232, no 2, p. 122-130Article in journal (Refereed)
    Abstract [en]

    The purpose of this study was to investigate the resistance (RES) to breathing in metabolic systems used for the distribution and measurement of pulmonary gas exchange. A mechanical lung simulator was used to standardize selected air flow rates ( , L/s). The delta pressure (∆p, Pa) between ambient air and the air inside the equipment was measured in the breathing valve’s mouthpiece adapter for four metabolic systems and four types of breathing valves. RES for the inspiratory and expiratory sides was calculated as RES = ∆p / , Pa/L/s. The results for RES showed significant (p < 0.05) between-group variance among the tested metabolic systems, as well as the breathing valves and between most of the completed . The lowest RES among the metabolic systems was found for a Douglas Bag system, with approximately half of the RES compared to the automated metabolic systems. The automated systems were found to have higher RES already at low  in comparison to previous recommendations. For the hardware components, the highest RES was found for the breathing valves while the lowest RES was found for the hoses. Conclusion: The results showed that RES in metabolic systems can be minimized through conscious choices of system design and hardware components. 

  • 2.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Jonsson, Patrik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
    Drag Area, Frontal Area and Drag Coefficient in Cross-Country Skiing Techniques2018In: Proceedings, Volume 2, ISEA 2018 / [ed] Hugo Espinosa, David Rowlands, Jonathan Shepherd, David Thiel, MDPI, 2018, Vol. 2, article id 313Conference paper (Refereed)
    Abstract [en]

    The aim of this study was to investigate the air drag, frontal area and coefficient of drag of cross-country skiing classical and free style techniques. One highly skilled cross-country skier performed skiing-like classical and free style techniques on a force plate in a wind tunnel. The skier was also photographed from the front in order to analyze the projected frontal area, which was determined from digital images using Matlab. From the results of the air drag and the frontal area measurements, the drag coefficient was also calculated. The results can be used by researchers to calculate the theoretical effect of air drag on cross-country skiing performance.

  • 3.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Tuplin, Simon
    Loughborough University, Loughborough, UK.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Render, Peter
    Loughborough University, Loughborough, UK.
    Design and development of a climatic wind tunnel for physiological sports experimentation2018In: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, ISSN 1754-3371Article in journal (Refereed)
    Abstract [en]

    The aim of this project was to develop a wind tunnel that enables the study of human performance during various types ofsports and physical activities by examining the influence of aerodynamic drag, precipitation, frictional forces and gravitationalforces on uphill and downhill travel on a moving substrate. An overall design for a wind tunnel and working section containinga large treadmill was drafted, followed by computational fluid dynamics simulations of flow conditions to assess thedesign’s feasibility and select from different geometries prior to its construction. The flow conditions in the completed windtunnel were validated using different flows, speeds and treadmill inclinations. Pilot experiments were carried out using across-country skier to investigate the effect of aerodynamic drag on oxygen uptake during double poling and the maximalachieved speed when rolling on a declined treadmill. The purpose was to validate the usefulness of the tunnel. The resultsshowed that flow conditions are acceptable for experiments even in worst-case scenarios with maximal inclined and declinedtreadmill. Results also showed that aerodynamic drag has a significant impact on the skier’s energy expenditure.

  • 4.
    Anjert, Katarina
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Förutsättningar för ett proaktivt arbete i skolan: en systematisk litteraturöversikt av den proaktiva modellen Response to Intervention2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The education system has historically had a reactive rather than a proactive approach to its customers, that is, students' needs and the conditions for achieving the school's goals. A reactive way of working is still the norm, although today we are aware that the effect of reactive improvements is limited. We are in a paradigm shift where the education system seeks to find models that are based on a modern view of quality, which means putting the customer's needs at the center.

     

    The aim of the study is to contribute further knowledge of how we can drive quality improvements, thus increasing customer value within the Swedish education system. The study is conducted with a systematic literature review of articles on the model Response to Intervention. Categorization is based on Bergman and Klefsjö (2012) model for quality development based on customer needs and satisfaction, and Österbergs (2014) structural quality dimension.

     

    The prerequisites for driving quality improvements using the RTI model can be summarized with; competent staff, the right equipment for carrying out and analyzing screenings of the students, as well as time and support for the work. All the values in the quality management model are mentioned in the articles, which allows us to assume that the RTI model can be used to develop quality and create customer value in the school.

     

    It also requires a culture that values measurement and working with data in order for the RTI model to contribute to quality development. Since the US school system, where the RTI model has been applied so far, is more result-oriented than the Swedish, we assume that the US system is more beneficial for the implementation of the model to be successful.

     

  • 5.
    Bengtsson, Robin
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Metodutveckling av vidhäftningsbehandling för textila vävar2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    At   Trelleborg Engineered Coated Fabrics rubber coated fabrics are manufactured.   In order to apply rubber to fabrics it is indispensable to first add a rubber   adhesion to the fabric. At Trelleborg ECF a special calendaring machine is   used for this operation. While it is an effective machine for big production   volumes it is not as effective when new products are developed. Therefore two   new lab machines has been procured so that new products can be developed in   the lab. The intent of this project is to evaluate the new machines, find a   connection between lab and production machines and appraise the factors that   affect the adhesion. This has been done by testing different combinations of   settings in the process when the adhesion is added to the fabric.   Additionally an analysis of the production process has been done to manage   the connection between lab machines and the production machine. Though no   fully complete connection between the machines has been found the factors   affecting the adhesion has been evaluated and based on the knowledge obtained   from the project a proposition on how to improve the production process has   been made.

  • 6.
    Bergström, Anton
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bredhe, Emelie
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Krympstudie inom additiv tillverkning: En fallstudie med elektronstrålesmältning av Ti6Al4V2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This project is a about studying and anylazing shrinkage during the   use of a EBM-machine in the material Ti6A14V. The study is done to anaylze   how prints of diffrent size and printing direction are affected by the   shrinkage. The project is done by two students at Mid Sweden University in   Östersund and the project is requested by the research department of the   university. Research has been made before the start of the project to give   the students a solid understanding in the matter. During the research for   information it was found that the shrink could be minimized by using   supportmaterial in the print. The design for the parts that was going to be   printed have been chosen through earlier studies of the matter where stairs   was recommended to easy be able to see what goes on in the different parts of   a print. Some details was also created so that measurements considering sharp   edges and round details could be checked for deformations if there was enough   time. Those were never measured since all the time of this project was   focused around the stairs. The stairs were printed in three different sizes.   They were also printed with and without supportmaterial and both standing up   and lying down in the printer EBM Arcam S12. When the parts had been printed   they were measured with a microscope called “Dino-Light edge Digital   Microscope”. The information gotten from these measurements were put into a   Microsoft Excel document where tables and graphs were created to make it easy   to spot the tendencies of the prints. The tendencies that were noticeable was   that the first and third step of every print had more shrink than the others.   This occurred no matter the size the stairs were but did not occur in the   parts printed with supportmaterial. No tendencies were noticed in the prints   with supportmaterial and the shrinkage that was noted in these prints might   also be because of the human factor. The trends are clearly visible in the   parts printed without supportmaterial. This might be because of the different   material in the printing plate that is stainless steel instead of Ti6Al4V.   This might cause problem for the layers that are printed closest to the   plate. The reason for shrinking in the details is also because of the fact   that the powder that is being printed gets melted and therefor shrinks. This   results in a thicker layer of powder everytime the powder is applied to the   printing surface. This is a problem that goes on throughout the whole print   no matter if supportmaterial is used or not. The work completed is considered to be well done.

  • 7.
    Boström, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Hillborg, Helene
    Region Västernorrland.
    Lilja, Johan
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Cultural Impact of Applying User Involvement  for Improving Healthcare Quality: A review of the impact on attitudes, values and assumptions among healthcare professionals and users2016In: Proceedings of the 19th QMOD Conference: Building a Culture for Quality, Innovation and Sustainability, 2016Conference paper (Refereed)
    Abstract [en]

    Purpose

    The purpose of this study is to provide a review of the impact on culture (attitudes, values and assumptions) among both healthcare professionals, as well as users, when involving users for improving quality in healthcare.

    Method

    The paper is based on an extensive, narrative literature review, covering 3786 papers.

    Findings

    The results indicate that there is currently limited research focusing on the impact of user involvement in quality improvement processes regarding professionals’ and users´ attitudes, values and/or assumptions. The articles identified during the study mentions situations and things which are said, during the process of development, and which can be interpreted as change in the culture. Although few articles specifically draw conclusions on user involvement as a “tool” for cultural change, the authors interpret several findings which strengthens that theory.

    Research limitations

    Research published in other databases could have been missed. The authors have tried to avoid this by using a snowball method reading references in identified articles.

    Practical implications

    Future research is needed to see if involvement activities in quality improvement processes can affect attitudes, values and assumptions in a positive way.

    Originality

    The review provides a platform for both future research and the development of current practice within the area. There has been literature reviews showing obstacles and enablers when using patients, users and relatives in quality improvement work, but few which investigates cultural change.

  • 8.
    Boström, Jonas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Hillborg, Helene
    Region Västernorrland.
    Lilja, Johan
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Exploring Cultural Dynamics and Tensions when Applying Design Thinking for Improving Healthcare Quality: What is really going on?2018In: Proceedings of the 21th QMOD Conference: Building a Culture for Quality, Innovation and Sustainability / [ed] Su Mi Park-Daahlgard, 2018Conference paper (Refereed)
    Abstract [en]

    Purpose:

    The purpose of this paper is to contribute knowledge concerning the dynamics and potential cultural tensions that occur when applying user involvement and design thinking for improving quality in a healthcare setting.

    Method:

    The paper is based on a case study following a quality improvement project (QI) in a medium sized Swedish county council in the field of somatic care. The project involved eight healthcare professionals, one designer, four patients and two relatives. A multiple data collection method over a period of 10 months was used. It included individual interviews, e-mail correspondence and observations of workshops that covered the QI project.

    Findings:

    The result shows tensions between QI work and the daily clinical work of the participants. These tensions primarily concern the conflict between fast and slow processes, the problem of moving between different fields of knowledge, being a resource for the individual clinic and the system, and the participants' expectations and assumptions about roles and responsibilities in a QI project. Furthermore these findings could be interpreted as signs of a development culture in the healthcare context.

    Practical Implications:

    There are several practical implications. Among others, the insights can inspire how to approach and contextualize the current concepts, roles and methods of design thinking and user involvement so that they can be more easily understood and integrated into the existing culture and way of working in the healthcare sector.

    Originality:

    The study provides a unique insight into a case, trying to uncover what actually is going on, and perhaps why certain things are not happening at all, when user involvement and design practices are applied for improving healthcare quality.

  • 9.
    Brochs, Christoffer
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Defektidentifieringvid EBM-tillverkning2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Tillverkning av slutprodukter med additiv tillverkning   blir allt vanligare. Slutprodukter har högre krav på detaljens mekaniska   egenskaper än prototyper gör. Forskning har visat att porositeten är av stor   betydelse för en detaljs hållfasthet. Med additiv tillverkning finns goda   möjligheter för direkt processövervakning och kontrollsystem. Inom electron   beam melting finns sådana system men de saknas en validering av resultatet   från dom systemen. I de här arbetet har prover med designade defekter   tillverkats. LayerQam bilder från tillverkningen har analyserats med Defect   Detector. Data från analysen har visualiserats. Resultatet har studerats samt   att det har tagits fram en Defect Detector-analys med högre precision.   Utvalda prover har undersökts i ett tvärsnitt med optisk mikroskopi samt i 3D   med mikrotomografi. Undersökningarna har jämförts med varandra, de tyder på   att Defect Detector har brister i sin bedömning av densiteten. De designade   defekterna har en överskattad storlek samt brister i kompensation av   förvrängningen i synfältet i bilderna.

  • 10.
    Bäckström, Ingela
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Ingelsson, Pernilla
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Snyder, Kristen
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Hedlund, Christer
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Lilja, Johan
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Capturing value-based leadership in practice: Insights from developing and applying an AI-interview guide2018In: International Journal of Quality and Service Sciences, ISSN 1756-669X, E-ISSN 1756-6703, Vol. 10, no 4, p. 422-430Article in journal (Refereed)
    Abstract [en]

    Purpose – The purpose of this paper is to present and discuss the results from the appreciative inquiry (AI)-inspired interviews to explore the underlying values held by top managers and to identify soft aspects ofleadership.Design/methodology/approach – Top managers were interviewed as a part of a research project withthe aim to support the development of value-based leadership that integrates company values, organizationalculture, customer needs and sustainable development. A structured interview guide, inspired by AI, wasdeveloped and used to pinpoint their motivation and vision of a good organization to understand the valuesthat the managers had and to identify soft aspects of leadership. The interviews were analyzed in workshopswith the whole research teamand structured and visualized through affinity diagrams.Findings – The results showed the underlying values held by top managers and identified soft aspects ofleadership.Practical implications – The presented interview guide can be used to identify the top managers’underlying values, and the presented results from the interviews can be used to inspire other managers andleaders to develop their leadership in their striving of good leadership and effective organizations.Originality/value – The paper explains how to apply an AI-inspired interview guide in finding out valuebasedleadership and soft aspects of leadership for enhancing organizational culture.

  • 11.
    Carnerud, Daniel
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    25 years of quality management research – Outlines and Trends2018In: International Journal of Quality and Reliability Management, ISSN 0265-671X, Vol. 35, no 1, p. 208-231Article in journal (Refereed)
    Abstract [en]

    Purpose: The purpose of this paper is to explore and describe how research on quality management (QM) has evolved historically. The study includes the complete digital archive of three academic journals in the field of QM. Thereby, a unique depiction of how the general outlines of the field as well as trends in research topics have evolved through the years is presented. Design/methodology/approach: The study applies cluster and probabilistic topic modeling to unstructured data from The International Journal of Quality & Reliability Management, The TQM Journal and Total Quality Management & Business Excellence. In addition, trend analysis using support vector machine is performed. Findings: The study identifies six central, perpetual themes of QM research: control, costs, reliability and failure; service quality; TQM – implementation and performance; ISO – certification, standards and systems; Innovation, practices and learning and customers – research and product design. Additionally, historical surges and shifts in research focus are recognized in the study. From these trends, a decrease in interest in TQM and control of quality, costs and processes in favor of service quality, customer satisfaction, Six Sigma, Lean and innovation can be noted during the past decade. The results validate previous findings. Originality/value: Of the identified central themes, innovation, practices and learning appears not to have been documented as a fundamental part of QM research in previous studies. Thus, this theme can be regarded as a new perspective on QM research and thereby on QM.

  • 12.
    Carnerud, Daniel
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Jaca, Carmen
    Universidad de Navarra, TECNUN, San Sebastian, Spain.
    Bäckström, Ingela
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Kaizen and continuous improvement – trends and patterns over 30 years2018In: The TQM Journal, ISSN 1754-2731, E-ISSN 1754-274X, Vol. 30, no 4, p. 371-390Article in journal (Refereed)
    Abstract [en]

    Purpose: The purpose of this paper is to depict how Kaizen and continuous improvement (CI) are represented in scientific journals focusing on quality management (QM) from the 1980s until 2017. Additionally, the study aims to examine how Kaizen is studied and described and how the relationship between Kaizen and CI is portrayed. Design/methodology/approach: The study applies a mixed methods approach to search for tendencies and outlines concerning Kaizen and CI in four scientific journals focusing on QM and two focusing on OM. The data set contains entries from 1980 until 2017, which makes it possible to depict how Kaizen has evolved over more than 30 years. Findings: The findings show that Kaizen and CI attained special interest in the mid-1990s, after which interest appears to have decreased. However, the findings imply that a regenerated interest for the areas spiked post 2010. In addition, the results indicate that Kaizen is on the one hand accepted by one part of the management community but on the other hand completely ignored by the rest. Finally, the data illuminate a need to strengthen and clarify Kaizen’s theoretical basis and its relationship to CI. Practical implications: If an aspiration exists to increase the success rate of Kaizen implementation, the results from the study highlight the need to address and clarify epistemological, terminological and theoretical issues. Originality/value: Prior data mining studies pinpointing how Kaizen and CI have evolved over the last 30 years appear not to exist. 

  • 13.
    Danestad, Peter
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Markovic, Dragana
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Framgångsfaktorer och hinder vid införande av e-tjänster i kommunal verksamhet: Hur förbättrar man e-tjänster genom offensiv kvalitetsutveckling med kunden i centrum?2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Digitization is currently considered to be the most important factor of change affecting all parts of society, including the public sector. E-government is used to create more open public administration that supports innovation and participation, facilitates people's daily lives, providing higher quality and efficiency in the activities. In addition, e-government is expected to lower cost and maximize benefits for both citizens and companies as well as society at large.

    The goal of the Government has since 2012 been to make Sweden the leading country in the world in terms of utilizing the potential of digitization. Sweden has also been at the forefront in comparison with other countries in terms of internet use and citizens' use of e-government services. International comparisons show, for example, that Sweden is in sixth place, see the UN's latest compilation of e-government development in the world (UN-E Government survey 2016). However, in the same year, the Swedish National Audit Office (NAO) in its report (RIR 2016: 14) also found that public actors do not pursue this work according to Government objectives and that more can be done to develop e-government. According to the NAO, work on e-government has been short-term, overly delegated and characterized by a lack of overall responsibility and not managed in a cost-effective way.

    This case study sets out to investigate these conditions more closely, with a view to provide new knowledge about what is needed for a more successful introduction of e-services. A medium-sized municipality that introduced an e-service for the application for building permission, called "MittBygge", in 2015 was chosen as case study.

    Like previous research, this study identifies a number of crucial success factors that need to be taken into account when planning, introducing and following up the benefits of e-services. These success factors are: internal and external customer focus, education, leadership, communication, stakeholder response, the importance of measuring and defining success, sufficient resource allocation, employee involvement and commitment. The study's results also show the obstacles and challenges that may appear along the way towards more efficient and high-quality e-services. These are the absence of effective metrics, time constraints, low priority, insufficient educational efforts, difficulties with finding and understanding information, and the overall experience of e-service accessibility by the residents of the municipality. The results also show that the values behind offensive quality development, i.e.  putting the customer at the heart of the process, basing decisions on facts, working with processes, continuously working on improvements and creating conditions for stakeholder involvement, not only offers a good theoretical base for development and continuous improvement of activities but it is also an essential prerequisite for successful work.

     

  • 14.
    Douglas, Timothy E. L.
    et al.
    Lancaster University, United Kingdom.
    Hempel, Ute
    Technische Universität Dresden, Germany.
    Żydek, Jagoda
    AGH University of Science and Technology, Kraków, Poland.
    Vladescu, Alina
    National Institute for Optoelectronics, Romania; National Research Tomsk Polytechnic University, Russia.
    Pietryga, Krzysztof
    AGH University of Science and Technology, Kraków, Poland.
    Kaeswurm, Julia A. H.
    University of Stuttgart, Germany.
    Buchweitz, Maria
    University of Stuttgart, Germany.
    Surmenev, Roman A.
    National Research Tomsk Polytechnic University, Russia.
    Surmeneva, Maria A.
    National Research Tomsk Polytechnic University, Russia.
    Cotrut, Cosmin M.
    National Research Tomsk Polytechnic University, Russia; University Politechnica of Bucharest, Romania.
    Koptioug, Andrei
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Pamuła, Elzbieta
    AGH University of Science and Technology, Kraków, Poland.
    Pectin coatings on titanium alloy scaffolds produced by additive manufacturing: Promotion of human bone marrow stromal cell proliferation2018In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 227, p. 225-228Article in journal (Refereed)
    Abstract [en]

    Ti6Al4V is a popular biomaterial for load-bearing implants for bone contact, which can be fabricated by additive manufacturing technologies. Their long-term success depends on their stable anchoring in surrounding bone, which in turn depends on formation of new bone tissue on the implant surface, for which adhesion and proliferation of bone-forming cells is a pre-requisite. Hence, surface coatings which promote cell adhesion and proliferation are desirable. Here, Ti6Al4V discs prepared by additive manufacturing (EBM) were coated with layers of pectins, calcium-binding polysaccharides derived from citrus (C) and apple (A), which also contained alkaline phosphatase (ALP), the enzyme responsible for mineralization of bone tissue. Adhesion and proliferation of human bone marrow stromal cells (hBMSC) were assessed. Proliferation after 7 days was increased by A-ALP coatings and, in particular, by C-ALP coatings. Cell morphology was similar on coated and uncoated samples. In conclusion, ALP-loaded pectin coatings promote hBMSC adhesion and proliferation. 

  • 15.
    Eckervig, Cecilia
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Madsen, Tove
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Att ta värderingar från ord till beteenden: Kan Appreciative Inquiry användas för att levandegöra värderingar i en organisation och dess kultur?2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Through tradition there has been a focus on "hard values" within total quality management, for an example statistical process measurements and problem-solving techniques. Research identifies the failure to create a supportive culture for improvements as one of the main reasons why organizations fail in their quality management initiatives. Despite the knowledge that culture is a mayor key to success, there is a gap of knowledge to how, and even if, it is possible to create a supportive quality culture. What defines culture is to a large extent the values it is based up on, and that the coworkers within an organization take ownership of these values. The purpose of this research is to contribute with knowledge towards how Appreciative Inquiry (AI) can be used within organizational work with values, culture, and to identify possible effects, if any, of the method.

    An explanatory case study at an organization in the south of Sweden was conducted through two dialogue-based workshops, an online survey, and a document study.

    The result shows that AI creates a structured dialogue about values and value-related behaviors and succeeds in bringing organizational values to life. This is shown though both the perceived and demonstrated changes within coworkers, towards being in agreement and understanding the values within an organization.

  • 16.
    Enakeyarhe, Omafume Matthew
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Leadership perspectives for Continuous Improvement: A Case study on leaders’ consistency for organizational transformation2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The changes experienced in society presents challenges that demands for reciprocal approach on continuous improvement within organizations. This entails fashioning work ways and standards that can adapt to these changes; a task that leaders or prospective leaders should be conversant with. Thus, this study investigates and present results that could assist leaders in understanding the importance of their engagement in continuous improvement as well as the relationship with partners.

    Investigation through means of interview, survey, observation and documents analysis were conducted at LBS Creative Senior High School (LBS Kreativa Gymnasiet). The research presented description of how the school through its various leaders work consistently with improving the school and its students.

    The result showed that the school, through relational leadership perspective operates with transparency, openness and the engagement of teaching and non-teaching staffs, which have enabled the transformation of work-culture to one that is consistence with improvement. The result also showed that the transformation has contributed to satisfaction as experienced by teachers, parents/guardians and partners, however partnership with companies was based on an order-deliver relationship and thus was not necessary to be part of the school’s continuous improvement plan.

  • 17.
    Eriksson, Love
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Flow Motion Technology: Cross country ski plate2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Within the framework of this   bachelor theses, a binding plate integrated with Flow Motion Technology   (FMT), has been developed on behalf of the company Marsblade®Ltd.   A binding plate is a plate mounted between the ski and the binding. Due to   the fact that the skating technique in cross country skiing has many   similarities with ice skating and that FMT has been a great success in ice   hockey contexts, the idea of a binding plate that utilizes the FMT technology   was raised. The developed plate can now be used to test and verify the   technology mounted on cross-country roller skis.

    The product development work   began with an overall pre-study to investigate how the end product could be   designed and finally received by its users. The idea was that the binding   plate will be of particular benefit to world-class cross country skiers. With   the help of creative and systematic methods, development has been pushed   forward. Through a methodological reduction process a final concept emerged   and has been dimensioned and manufactured.

    The binding plate produced is   comprised of seven sub-components. Three of these parts are unique. The   concept is based on a split chassis (one lower, and one upper part),   centrally assembled with a spring. The lower part has an arched surface at the   top that allows the top chassis to rock like an upside-down rocking chair.   The lower part, which is interchangeable, has been made in seven different   configurations, to enable the evaluation of two different radii and three   different swing designs in future tests.

    In the world of ice hockey, FMT's   rocking technique is described as being equally important as the introduction   of the composite stick and resembles the carving ski's breakthrough in alpine   skiing. However, product development in cross country skiing, has seen no   major breakthroughs for a very long time.

    The hope is that by integrating   the construction of FMT into the ski and though optimizing the weight of the   bindings, the product will be welcomed by ski associations and skiers   globally.

    The potential benefits of FMT   are: greater impulse in the leg kick-off, greater freedom of movement in the   ankle (allowing the user to wear a stiffer shoe), and an overall better ride   feeling. Combined this will increase the user’s cross country skiing performance.   With the final test product as a basis, these claims should be experimentally   investigated and proven.

  • 18.
    Eriksson, Maria
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Ingela
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Ingelsson, Pernilla
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Åslund, Anna
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering. Strömsunds Kommun.
    Measuring customer value in commercial experiences2018In: Total quality management and business excellence (Online), ISSN 1478-3363, E-ISSN 1478-3371, Vol. 29, no 5-6, p. 618-632Article in journal (Refereed)
    Abstract [en]

    Customer value is of importance to all businesses in the search for competitive advantage. To learn about what customers truly appreciate, measuring can be a vital source of information towards an understanding of what creates customer value. Commercial experiences are claimed to be an offering of their own, separate from goods and services. The existing tools and models for measuring customer value do not focus on the elements pointed out as vital for commercial experiences. A case study was performed on customers participating in a high-impact commercial experience to understand what is valuable to the customer. The results were used todevelop an approach to measuring customer value specifically for commercial experiences. In the study, questionnaires were designed to find out about custom erexpectations before the experience compared with customer satisfaction after theexperience in search for important factors of customer value. The study achieved a high score indicating a high level of received customer value, reinforcing the selected measurement variables. The approach proposes the development of a measuring tool consisting of 22 elements along with the WOW-impact specificallyadapted for measuring customer value in commercial experiences. This is one way of expressing the created experiential quality.

  • 19.
    Eriksson, Rasmus
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Discars flygegenskaper: Baserat på aerodynamiska mätningar2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This project   examines the possibilities of rating discs intended for use in discgolf after   a scale based on scientific tests. Tests are conducted in the wind tunnel at   Sportstech Research Centre at Mid Sweden University in Östersund in   collaboration with Kastaplast AB. Successful tests could lead to standardized   and more accurate ratings of disc that would facilitate for both customers   and manufacturers. Intentions are to foremost rate a discs speed rating but   will also examine the possibilities of seeing connections regarding glide and   turn. Tests may also lead to future studies regarding the understanding of   disc flight.

  • 20.
    Gyllensvärd, Sofia
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Värdeskapande inom idrottsevenemang: Hur arbetar arrangörer för att främja ett högt upplevt kundvärde hos sina deltagare?2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In Sweden we have several major sports events and each of them attracts tens of thousands of participants each year. The organizers of these sporting events have the task of meeting the expectations of each participant (customer) and satisfy their needs. Customer value is a key concept in both Total Quality Management (TQM) and marketing and customer value creation is considered an important success factor for all organizations. Not least in the future when consumers increasingly want to be involved in designing the products they buy. The aim of the study was to achieve increased understanding of customer value creation in sports events by examining how organizers work todayand want to work in the future to promote a high level of customer value for their participants. Data was collected through five interviews with organizers of sports events. Analysis of the data showed that the organizers today use strategies and activities within 12 different themes with the aim of promoting a high level of customer value. A conclusion from the analysis was that organizers today offer their participants the opportunity to co-create customer value by adding the three building blocks dialogue, risk assessment and transparency. For future improvements and continued development in customer value creation three areas were identified: expanded/differentiated dialogue with participants, more collaborations and clear social responsibility and giving participants more mandate to participate in development and participate in the design of the events.

  • 21.
    Hansen, David
    et al.
    Aalborg Universitet .
    Lilja, Johan
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Jørgensen, Rasmus
    Technical University of Denmark.
    How Positive Practices at Work can Accelerate Transformation to a Lean Improvement Culture and Improve Organizational Effectiveness2018In: BOOK OF ABSTRACTS: 9th European Conference on Positive Psychology, 2018Conference paper (Refereed)
    Abstract [en]

    Organizations striving for operational excellence face new challenges in a world increasingly characterized by volatility, uncertainty, complexity, and ambiguity [1]. For decades, one of the answers to achieving operational excellence has been to pursue a continuous improvement culture such as through the Lean philosophy in order to engage and empower employees to continuously optimize resource utilization and thereby increase competitiveness [2]. However, many organizations only get short-term gains out of their efforts and fail with an actual Lean transformation and frequently, cultural change is mentioned as the hardest to manage [3]. At all organizational levels, people get under pressure that frequently leads to behavior un-favoring long-term excellence and certainly inhibiting continuous improvement culture. Psychological mechanisms induced by fear and high tempo are possible explanations.

    This paper aims for investigating whether positive practices at work [4] can accelerate transformation to a Lean improvement culture and contribute to improved organizational effectiveness.

    The study was carried out as an exploratory case study. The selected organization was identified due to its history with experimenting with positive practices and explicit focus on and strategic need for developing a Lean improvement culture. During the study, the researchers had extensive access to investigate daily operational improvement practices at the manufacturing plant. First, all improvement practices were mapped and the positive practices identified. Second, the improvement practices were analysed to assess their impact on developing Lean improvement culture together with a discussion of the difference between traditional improvement practices and the identified positive practices. Third, the positive practices with the highest assessed impact were further analysed in depth to investigate to what degree they also contributed to organizational effectiveness.

     

    References

    1. Bennett, N. & Lemoine, G. J. (2014). What VUCA really means for you. Harvard Business Review, 92(1), 27.

    2. Arlbjørn, J. S. & Freytag, P. V. (2013). Evidence of lean: a review of international peer-reviewed journal articles. International Journal of Operations and Production Management, 25(2), 174-205.

    3. Liker, J. K. (2004). The Toyota Way. New York: McGraw-Hill.

    4. Cameron, K., Mora, C., Leutscher, T. & Calarco, M. (2011). Effects of Positive Practices on Organizational Effectiveness. Journal of Applied Behavioral Science, 47(3), 266-308.

  • 22.
    Ingelsson, Pernilla
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Ingela
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Snyder, Kristen
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Adapting a Lean leadership-training program within a health care organization through co-creation2018In: 21st QMOD conference on quality and service science ICQSS, 22-24 August 2018, Cardiff University, Wales, UK / [ed] Su Mi Park-Daahlgard, 2018Conference paper (Refereed)
    Abstract [en]

    Purpose –The purpose is to describe and evaluate a Lean leadership-training program within the healthcare sector, developed through a co-creative process with the intent of enhancing the possibilities for a context-specific adaption of Lean.

    Methodology/approach – A co-created leadership-training program, executed over a period of one year, is described both as a model development process and as the final training program. The program was evaluated through reflective discussions and feedback as well as a written final evaluation of the program from participants in the program.  

    Findings – Even though the process was not followed to the end the evaluation shows that the objectives of the training program was met, at least amongst the participators attended the whole program. Using a co-creative process when developing and realizing a leadership-training program enhances the possibilities for an organizational adaption of Lean to its own context. One condition for this approach to be successful is that the expectation on both the organization and the University needs to be in focus through the whole process. In addition the executive team needs to be continuously engaged and create conditions for the organization to realize the potential winnings from the training program.

  • 23.
    Ingelsson, Pernilla
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Ingela
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Snyder, Kristen
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Strengthening quality culture in private sector and health care: What can we learn from applying soft measures?2018In: Leadership in Health Services, ISSN 1751-1879, E-ISSN 1751-1887, Vol. 31, no 3, p. 276-292Article in journal (Refereed)
    Abstract [en]

    Purpose – The purpose of this study is to present a comprehensive approach to studying organizational culture using “soft measures” to facilitate sustainable quality development in organizations. The purpose is also to present, discuss and compare the results from a survey designed to measure a company’s value base.

    Design/methodology/approach – A number of different methods were used to collect soft data to study and measure organizational culture and at the same time influence the culture and the leadership within three organizations. One method, the survey, was used on two different occasions to obtain an overview of the culture within an organization and to investigate if the activities had influenced the culture and the leadership.

    Findings – The application of soft measures used by leaders to study and develop organizational culture resulted in statistically significant positive changes in organizational work culture, according to a pre-post survey after a short period of one year.

    Practical implications – The approach can be used by leaders in different types of organizations as the challenge of changing the organizational culture through the leadership seems to be a common challenge regardless of line of business.

    Originality/value – The study shows the benefits of using a comprehensive approach to assess an organization’s culture based on qualitative measures and analysis.

  • 24.
    Karlsson, Pär
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Hedman, Jonas
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Utveckling av beräkningsmodell för luftpermeabilitet i textilier: Ett arbete utfört på uppdrag av Klättermusen2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna rapport beskriver arbetet med att skapa en ny   modell för att bestämma MFR (massflow resistance) på klädesplagg. MFR är   outdoorföretaget Klättermusens egna mått på luftpermeabilitet, vilket   motsvarar den mängd luft som släpps igenom plaggen. Arbetet har genomgått tre   projektfaser i form av textiltester, analytiska beräkningar samt   vindtunneltester.

    Uppstarten av projektet har innefattat att få   grundläggande kunskap om luftpermeabiliteten i textilier. Men också för att   se vad som tidigare har studerats inom området och använda den kunskapen som   grund för genomförandet av projektet.

    Arbetet har bestått av omfattande textiltester med   standardiserade mätmetoder för att få ökad förståelse för de olika   textiliernas egenskaper. Resultatet från textiltesterna användes sedan i de   analytiska beräkningarna. Utifrån dessa skapades en ny beräkningsmodell med   målsättningen att generera korrekta MFR-nivåer för plaggen.

    Vindtunneltester genomfördes för att verifiera den   analytiska beräkningsmodellen. Utifrån testpersonernas upplevelse gavs   personliga bedömningar på plaggens MFR-nivåer.

    Resultatet från jämförelsen mellan analytiska   beräkningar och de subjektiva bedömningarna från vindtunneltestet, visar att   dessa överensstämmer väl med varandra. Detta visar att beräkningsmodellen   fungerar väl för att kunna bestämma MFR-nivåerna utifrån projektets   förutsättningar.

  • 25.
    Kemi, Magnus
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Produktutveckling av kulsektorventil Ramén KS-1: Ett projekt i samarbete med Aim Sweden AB och Ramén Valves AB2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This product development project of the ball sector   valve Ramén KS-1 has been carried through in cooperation with the companies   Aim Sweden AB and Ramén Valves AB. The purpose of the project is to make it   possible for Ramén Valves to offer a titanium ball sector valve with   DIN-standard flanges and a build length which can be customizable to the   customer needs. The goal of the project is to create a CAD-model of a   detailed construction which fulfills strength and maneuverability   requirements. It is to be possible to change the length of the CAD-model to   required build length. Ramén Valves’ titanium ball sector valves are today   manufactured in China, which from time to time demands that Ramén Valves buy   more valves than their customers have ordered. This causes warehousing costs   and an economic uncertainty. This can be solved by assigning Aim Sweden to   manufacture the titanium valves by additive manufacturing which makes it   possible to single piece produce as many valves as Ramén Valves’ customers   have ordered. Additive manufacturing also entails the possibility to produce   valves with DIN-standard flanges and customizable build length without   increasing manufacturing costs. Ball sector valves with flanges and a   customizable length complete Ramén Valves’ range of products which today is   limited to valves with wafer connection and a unique build length. The   limitations of the project are construction of DIN-standard flanges, a   section with customizable length and a new connection between the two parts   of the valve. The project was carried through as an iterative product   development process. It started with gathering of information followed by   development of concepts, followed by evaluation, followed by further   development of the concepts. This process was repeated until three different   concepts and finally a detailed construction were developed. All concepts and   the detailed construction were created as CAD-models with the software   Solidworks. Their strength was analyzed through FEM and calculations and   their bolt joints were sized through calculations. From conclusions of the   analysis next generation of concepts were developed, The final result, the   detailed construction, fulfills the requirements and makes it possible for   Ramén Valves to offer a unique product and to reach a wider range of   customers. The detailed construction can also be manufactured with shorter   lead than today.

  • 26.
    Klingvall Ek, Rebecca
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Electron beam melting: Impact of part surface properties on metal fatigue and bone ingrowth2019Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Abstract

    The aim of this thesis is to investigate aspects on how additive manufacturing (AM) contributes to functional bone implants with the use of the electron beam melting (EBM) technology. AM manufactures parts according to computer-aided design, and the EBM technology melts powder using an electron beam, which acts similar to a laser beam. The topics discussed in this thesis are related to surface roughness that originate from the melted metal powder, and the thesis tries to define some aspects that affect implant functionality. Process parameters steering the electron beam and biocompatibility arising from the surface texture were the initial parts of the PhD studies, and the other half focused on post-processing and fatigue, which are important for medical and industrial applications. There are six studies in this compilation thesis. They are abbreviated as P - process parameters, M - medical applications, and F - fatigue. Studies P, M2, F2, and F3 are journal articles, and M1 and F1 are conference proceedings.

    Study P used design of experiments to investigate how process parameters affect the surface roughness of as-built EBM-manufactured parts and concluded that beam speed and energy (current) were the most important parameters that influence the surface roughness.

    In studies M1 and M2, EBM-manufactured specimens of cobalt-chromium and titanium alloys were used to evaluate biocompatibility. The blood chamber method quantified the reactions of the human whole blood in contact with the metal surfaces, and the results showed how the as-built EBM surface roughness contributed to coagulation and bone healing.

    Rotating beam fatigue equipment was used in studies F1–F3 and study F1 discussed the size effect on fatigue loaded as-built specimens and included specimens with different sizes and with or without hot isostatic pressing (HIP). Study F2 compared as-built and machined specimens and study F3 investigated how Hirtisation, which is a patented electrochemical surface treatment, and HIP affect the fatigue properties that originate from the electrochemical polishing surface topography. The studies showed that a decreased surface roughness increased the fatigue resistance while the stress concentrations (Kt) in the surface of EBM-manufactured specimens decreased.

    The thesis concludes that EBM-manufactured as-built surfaces are suitable for direct contact with the bone, and that HIP does not improve the fatigue resistance of parts with as-built surfaces, where crack initiation starts at notches.

  • 27.
    Klingvall Ek, Rebecca
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Rännar, Lars-Erik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Fatigue properties of electrochemical polished and hot isostatic pressed Ti6A14V manufactured by electron beam meltingIn: Article in journal (Refereed)
  • 28.
    Klingvall Ek, Rebecca
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Rännar, Lars-Erik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Influence of the surface topography of additive manufactured Ti6A14V on fatigue and calculations of the stress concentration factorIn: Article in journal (Refereed)
  • 29.
    Koptioug, Andrei
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Ainegren, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Nilsson, Kajsa
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Studying Moisture Transport Trough "Active" Fabrics Using Humidity-Temperature Sensor Nodes2018In: Proceedings, Volume 2, ISEA 2018: / [ed] Dr Hugo Espinosa, David R. Rowlands, Jonathan Shepherd, Professor David Thiel, 2018, Vol. 2, p. 230-, article id 6Conference paper (Refereed)
    Abstract [en]

    Active fabrics providing better comfort of the garments and footwear rapidly become an essential part of our life. However, only limited information about the performance of such fabrics is commonly available for the garment and footwear designers, and tests are often done only with the final products. Thus development of the objective testing methods for the fabric assemblies containing microporous membranes and garments using them is one of the important topics. Garment tests in the climate chamber when exercising in windy and rainy conditions with a set of temperature and humidity sensors placed over the body allow comparing manufactured garments for thermal and humidity comfort. To allow for better material testing a new laboratory setup was developed for studying the dynamics of the humidity transport through different fabrics at realistic conditions in extension of the existing ISO test procedure. Present paper discusses the experimental procedures and first results acquired with new setup.

  • 30.
    Koptioug, Andrei
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Botero Vega, Carlos Alberto
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Popov, Vladimir
    Israel Institute of Metals, Technion R&D Foundation, Technion City, 3200003, Haifa, Israel.
    Chudinova, Ekaterina
    Tomsk Polytechnic University, Tomsk, Russia.
    Developing new materials for Electron Beam Melting: experiences and challenges2018Conference paper (Refereed)
    Abstract [en]

    Lack of industrially available materials for additive manufacturing (AM) of metallic materials along with the promises of materials with improved or unique properties provides a strong drive for developing new process/material combinations. As powder bed technologies for metallic materials are relatively new to the market, and to some extent are only maturing, developers of new process/material combinations have certain challenges to overcome. Firstly, basic knowledge on the behavior of materials (even those well established for other applications) under extreme conditions of melting/solidification with beam-based AM methods is far from being adequate. Secondly, manufacturing of the equipment is up to date driven by industrial application, thus optimization of the AM machines for small test batches of powders is still belongs to research and development projects. Also, majority of the powder manufacturers are primarily driven by the market development, and even they are well aware of the demands imposed by the powder bed AM machines, availability of small test batches of adequate powders may be problematic or at least quite costly for the R&D oriented users. Present paper describes the experiences in developing new materials for EBM A2 machine by Arcam EBM, modified for operating with powder batches of 100-200 ml and less. In particular it discusses achievements and challenges of working with powders from different materials with specifications far beyond the range suggested by machine manufacturer. Also it discusses the possibility of using blended rather than pre-alloyed powders for achieving both composite-like and alloyed materials in the same part by steering electron beam energy deposition strategy.

  • 31.
    Koptioug, Andrei
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Rännar, Lars-Erik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Botero Vega, Carlos Alberto
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Popov, Vladimir
    Israel Institute of Metals, Technion R&D Foundation, Technion City, 3200003, Haifa, Israel.
    Unique material compositions obtained by Electron beam melting of blended powders2018In: Euro PM2018 Proceedings, European Powder Metallurgy Association, EPMA , 2018Conference paper (Refereed)
    Abstract [en]

    Today powder bed fusion based (PBF) additive manufacturing (AM) methods in metallic materials mainly employ pre-alloyed precursor powders. It was even somehow assumed that in situ alloying of the blended powders will not be effective and such PBF processing will not yield any valuable materials. Recent studies carried out both for laser- and electron beam- based PBF have demonstrated possibilities of using precursors blended from both elemental and alloyed powders. We also demonstrate that composites and alloys indeed can be manufactured from a range of different pre-blended powders with Electron Beam Melting (EBM). It is also possible achieving both composites and alloys by design in different parts of the manufactured components by varying the beam energy deposition strategy. Using sequentially fed precursor powders together with a new powder delivery system also allows manufacturing of the functionally graded materials with gradual composition variation. Blended powder precursors and sequential powder feeding should provide opportunities of manufacturing components with changing composition and material properties in a single manufacturing process. It makes possible modern industrial manufacturing of materials similar to Damascus steels, and other composites and composite-like materials in combinations with alloyed and gradient sections by choice in different parts of components.  

  • 32.
    Kuisma, Kiia
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Continuous Improvement Over the Long Term: A Cross-national Study of How Continuous Improvement Can Be Sustained2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    According to research, continuous improvement is an essential element of different quality management systems, while work with continuous improvement in organizations has been studied to be frequently too limited in scope and difficult to sustain. Therefore, the purpose of this study was to contribute with knowledge on how organizations can work to sustain continuous improvement.

     

    The empirical data was collected through qualitative, semi-structured interviews of seven leaders representing manufacturing companies either in Sweden or in Finland. The companies have adopted Lean management and work with continuous improvement successfully.

     

    The results showed that the studied organizations have their unique ways of working with and sustaining continuous improvement, even though there are similarities. According to the studied organizations, the most important factors that enable sustaining continuous improvement were related to leadership, leadership attributes, and strategic planning; processes, techniques, and tools; as well as working environment and culture. The results showed that critical for sustaining continuous improvement are leaders prioritizing continuous improvement and manifesting the priority through several ways. Commitment to continuous improvement in the long term is vital and can be trained. While everyone working along with shared practices is important for continuous improvement, involving employees to use their capabilities to develop these practices supports sustaining continuous improvement. The studied organizations have differences in how they see that their work with continuous improvement would look like if they had the best opportunities to work with continuous improvement, even though some similar themes were found.

    The study concluded that continuous improvement has been adapted to the needs and situations of the organizations. Self-developed practices are means of putting the principles supporting continuous improvement into practice and developing the culture towards the values and principles. For a successful work with sustaining continuous improvement, it is important to build and form structures and practices in alignment with the strategic objectives of the organization, taking into account the organizational context.

  • 33.
    Laurizohn, Jacob
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Variation i tjänsteprocesser: Hur kan variationer hanteras2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of the study was to generate an understanding about how variation is expressed and can be managed in service companies. Through a qualitative study, empirical material has been collected via interviews at a Scandinavian FinTech company. The result of the study showed, in comparison to available research, that the organization could develop in several areas to better manage variation. Some of the main identified areas for improvement was:

     

    • Map the business processes.

     

    • Coherent strategy for measurement that creates a link between data capture, compilation, presentation, communication, analysis and action.

     

    • Introduction of an Intranet.

     

    • Use of systematic improvement work when solving problems.

     

    • Implement a statistical approach to one or more processes to determine variation.

     

    Findings from the study indicated that the understanding of measurement and improvement work seems to decrease, the closer the operational organization the respondent is working. Furthermore, the author concludes that there is a strong driving force in the organization including both managers and employees to develop business processes and that corporate culture seems to be well developed for this. It may be considered as a good starting point to push through the changes that are required to be better manage future variations in processes.

  • 34.
    Lilja, Johan
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Hansen, David
    Aalborg University Copenhagen.
    Fredrikson, Johan
    Amplify.
    Richardssson, Daniel
    Styrkebaserad.org.
    Is Innovation the Future of Quality Management?: Searching for signs of quality and innovation management merging in current practices and concepts2016In: Proceedings of the 19th QMOD Conference: Building a Culture for Quality, Innovation and Sustainability, 2016Conference paper (Refereed)
    Abstract [en]

    Purpose

    Currently, upcoming as well as mature industries are facing pressure as regards successfully managing operational excellence and continuous improvement, and at the same time driving and managing innovation. Quality management concepts and practices’ ability to tackle this challenge have been questioned and previous research even suggests that quality management initiatives can impede firms’ abilities to innovate and quickly adapt to changes. It has also been suggested that there is a need to provide and promote an updated/changed, and even re-branded, version of the Total Quality Management (TQM) concept, merging quality and innovation management. Such a shift would indeed be a fundamental and groundbreaking shift in the history of Quality Management so far. Can such a shift then actually be spotted? The purpose of this paper is to explore and see if there are any signs suggesting that quality and innovation management actually are about to merge.

    Approach

    The study is based on literature reviews, document studies, and interviews.

    Findings

    The paper highlights three signs indicating that quality and innovation management indeed are approaching each other, and that it is a movement driven from both sectors, e.g., in the work with new ISO-standards and the Toyota Kata framework.

    Relevance/contribution

    The indicated development has fundamental and extensive practical implications. It will for example have to be followed by a similar merging of the two fields in the educational system, and in the competences of future managers.

  • 35.
    Lilja, Johan
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Snyder, Kristen
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Ahlin, Karin
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Computer and System science.
    Persson Slumpi, Thomas
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Computer and System science.
    Why Action Research and Quality Management is such a Nice Match: And How to Make them Dance without Falling2018In: Proceedings of the 21st QMOD conference: The Quality Movement, Where are we going ? - Past Present and Future, 2018Conference paper (Refereed)
    Abstract [en]

    Purpose

    For anyone digging into the concepts, it becomes obvious that action research and quality management are a really nice match. They share many of their conceptual roots, intentions, core principles/dimensions and processes. Current best practice of quality management can even be understood as doing and strengthening action research processes, in terms of the Plan-do-study-act cycle (PDSA), in organizations. However, the choice, design and application of action research within quality management research is surprisingly seldom discussed or shared. The purpose of this paper is hence to elaborate on how action research and quality management are closely interrelated and how action research can be used more frequently and successfully in quality management research. In addition, the paper hopes to contribute to revitalizing what could be considered the most fundamental practice of quality management: the PDSA cycle.    

    Method

    The paper is based on a conceptual discussion combined with illustrative experiences and learnings from several research projects that have applied action research to develop the field of Quality Management. The projects and examples illustrate and share both experiences of dancing at its best and a few uncomfortable falls.

     

    Findings

    The paper identifies several critical factors to consider when designing and applying action research within quality management research. 

     

    Practical Implications

    As action research is defined by its double aim, developing both scientific knowledge and practice, the ability to successfully design and apply action research in quality management research has large practical implications. One obvious risk if this dance fails is that academic researchers draw back from practice and their ambitions of developing and contributing to practice in their research. The findings of the paper are hoped to increase the number of successful future applications of action research within quality management.

     

    Originality

    The study provide insights in an area sparsely discussed in previous academic work.

  • 36.
    Liljestrand, Amanda
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Nyutvecklad testmetod för kontroll av väteförsprödning i kamlåsbrickor: Ett samarbete med Nord-Lock2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I detta   examensarbete har det utvecklats en ny metod för att testa väteförsprödning   för företaget Nord-Locks kamlåsbrickor. För att kamlåsbrickorna ska fungera   måste de vara hårdare än skruven och härdas därför under   tillverkningsprocessen, vid härdning kan kamlåsbrickorna ta upp väte. Syftet med detta projekt var att sätta sig   in i hur de testar väteförsprödning på Nord-Lock idag, undersöka vilka   problem som finns med testmetoden samt förstå den standard (ISO-15330) som ligger   till grund för testet. Detta för att Nord-Lock ska kunna genomföra noggranna   test mot väteförsprödning och garantera att detta inte förkommer i deras   produkter. Målet är sedan att ta fram förslag till en metod för test av   väteförsprödning, som inte påverkas av förutsättningar, storlek på låsbricka   eller personen som utför testet. Detta gjordes utifrån en   egenframtagen metodmall med agil-projektledning som grund där projektet   delades in tre större delar ”bestämma problemet”, ”undersöka problemet” och   ”lösa problemet”.  I ”bestämma   problemet” planerades projektets upplägg och de utfördes en grundläggande   undersökning varför problemet finns. I ”undersöka problemet” upprättades   projektets kravspecifikation med hjälp av kreativa och systematiska metoder.   Kravspecifikationen låg till grund för framtagning av slutkonceptet i ”lösa   problemet”, detta genom bland annat ”morfologisk matris”, ”elimineringsmatris”   och ”relativ beslutsmatris”. Slutkonceptet genererade en lösning med två   runda tryckplattor som ska deformera kamlåsbrickorna med hydrauliska tryck   med fyra bultar där det ska placeras fem kamlåsbrickor på varje med   specialgjorda mellansteg och fyra M20 bultar som ska hålla fast fixturen när   det hydrauliska trycket släpps. De runda tryckplattorna är dimensionerad så   den ska kunna testa brickor i storlek M6-M20. Slutkonceptet har undersökts   med beräkningar, tester och FEM-analys men det behövs mer undersökning,   tester och vidare utveckling för ett helt klart slutkoncept.

  • 37.
    Lindberg, Lina
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Återimpregneringars påverkan på impregnerade vävar: Hur påverkas färgbeständigheten, rivstyrkan och vattenresistensen av olika återimpregneringar2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    When you are designing clothes that are going to give protection against bad weather it is very popular to use functional textiles. One of the most important qualities for outdoor garments is the water repellent funktion to keep the carrier dry. To avoid penetration of water you can do one durable water repellent (DWR). [1]

    In this projekt four different fluorocarbon free reimpregnation has been tested on nine different textiles from Klättermusen. This has been made to find out how the reimpregnations affects the textiles. The tests that has been chosen to perform is spraytest there the water repellent function is tested, color fastness test to see how good the color attaches to the textile and tear strength to see if the textiles tolerance for tears increases with different reimpregnations. The tests is also going to investigate how good the reimpregnation is attached to the fabric when it is washed.

    When you are choosing reimpregnation there is different aspects to take into account. For example there is two types of application methods, one there you are washing in to the fabric, wash-in, and spray-on that is sprayed on the fabric. Application should always occur on clean fabric. In this project two wash-in and two spray-on reimpregnations has been tested. For Klättermusen is it very important to care for the environment therefore are the reimpregnation that where testing fluorocarbon free.

    When the test where performed the student could see that the color fastness test wasn’t affected so much of the choice of reimpregnation or washing. The water repellent was affected of the choice of reimpregnation and subsided when the textiles was washed. The tear strength had the opposite effect, the force that was needed to tear apart the fabric increased in the most cases after washing.

    To get a reimpregnation that gives high water repellent but also high tear strength some compromises are need to be done since the reimpregnation that in the most cases had the highest water repellent had the lowest tear strength.

  • 38.
    Lindqvist, Linnea
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Underhållsarbete på JAS 39 Gripen: Analys av lyftoperationer för flygplansdelar2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This bachelor thesis is carried out in the third year of the mechanical engineering program at Mid Sweden University in Östersund. The thesis addresses airplane lifting operations. These are simulated with two different lifting devices. The program used for the simulations is SolidWorks, a 3D modeling program with analysis and simulation features. The current lifting device used is outdated and the purpose of this work has been to create a decision base for the choice of a new lifting device.Based on the simulations made, it is concluded that lifting device 2 allows for better clearance between the aircraft and the lifted objects, thus reducing the risk of personal injury and machine damage. The principal is advised to choose lifting device 2 in front of lifting device 1.

  • 39.
    Löfqvist, Ninnie
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Kundtillfredsställelse inom djursjukvården: En studie av intern och extern kundtillfredsställelse vid en distriktsveterinärmottagning2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The work-related ill-health in the country has become a growing problem in general. For veterinarians, the work-load is perceived as strenuous, many vets consider changing their profession, and the suicide incidence is higher than it is for other professions. The purpose of the study was to make a contribution to the knowledge about both internal and external customer satisfaction within veterinary medical care by investigating pet owners’ satisfaction with veterinary appointments and veterinarians’ satisfaction with their working environment, and also to identify possible measures for improvement in these areas. The theoretical framework started out with its base in total quality management, and went on through customer satisfaction and working environment in general, to a more specific description of the working environment and quality in veterinary medical care, as well as communication between veterinarian and pet owner. The scientific strategy for this study was hermeneutics with an abductive approach. In order to answer the research questions, a case study was conducted at a clinic of official veterinarians, a Distriktsveterinärmottagning, with gathering of both qualitative and quantitative data. Pet owner satisfaction was assessed by means of a questionnaire translated from English and phone interviews. Veterinarian working environment satisfaction was assessed by means of focus group interviews and a questionnaire created by the author out of the theoretical framework of the study. Veterinarians working at an additional clinic were asked to complete the questionnaire and functioned as a control group. The collected data were analysed quantitatively and qualitatively. The results showed a high degree of pet owner satisfaction with the appointments, except regarding discussion about, and understanding of, the cost for the appointment. Veterinarians showed a high degree of satisfaction with their work and their profession, meanwhile showing dissatisfaction with their work load and some did not manage to work full-time. In addition to their work load, the veterinarians were least satisfied with the feedback regarding their work. Veterinarians showed the highest levels of satisfaction concerning social support and overall satisfaction with their work in the form of challenges faced and the feeling of carrying out meaningful work. Based on the results of the study, a number of possible measures for improving both the internal and external customer satisfaction were identified

  • 40.
    Mellin, Pelle
    et al.
    Swerea KIMAB, Kista.
    Magnusson, Hans
    Swerea KIMAB, Kista.
    Harlin, Peter
    Sandvik Materials Technology, Sandviken.
    Wikman, Stefan
    F4E, Barcelona, Spain.
    Olsén, Jon
    Stockholm University, Stockholm.
    Shen, Zhijian James
    Stockholm University, Stockholm.
    Rännar, Lars-Erik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Ålgårdh, Joakim
    Swerea KIMAB, Kista.
    Nyborg, Lars
    Chalmers University of Technology, Gothenburg.
    Bonding EBM-built blocks of 316L steel, using hot isostatic pressing2017In: Proceedings Euro PM 2017: International Powder Metallurgy Congress and Exhibition, European Powder Metallurgy Association (EPMA) , 2017Conference paper (Refereed)
    Abstract [en]

    To enable production of the First Wall Beam in the ITER fusion reactor; we attempt to join EBM-built blocks of 316L, by Hot Isostatic Pressing (HIP). For highly critical components, EBM-built material is usually HIPed anyway to heal defects such as pores and cracks. Using HIP to simultaneously bond several print-jobs together into a larger component saves time and reduces manufacturing complexity. We found by carrying out this research, that fine surface roughness is an important enabler for a complete bond. The raw printed surfaces that are obtained straight from the Arcam machine (Ra = 19.2 μm) do not enable a good bond. Instead, traditional machining, which in this paper reached Ra = 2.0 μm, enabled a good bond. HIP parameters are also important. The best bond in this study was achieved after increasing holding time from 1 h to 2 h. 

  • 41.
    Mårtensson, Anna
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Ingelsson, Pernilla
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Measuring Sustainability through values: Developing and Testing of Statements in a Questionnaire2018In: 21st QMOD-ICQSS Conference / [ed] Su Mi Dahlgaard-Park, 2018, p. 1065-1072Conference paper (Refereed)
    Abstract [en]

    Purpose: To describe the development and testing of statements aiming at measuring sustainable development and a way ofextending an existing questionnaire intended to measure factors representing values and principles identified in qualitydevelopment theory.Methodology: A questionnaire is further developed from an earlier version. The new version consists of 45 different statements representing 15 different factors related to quality development, lean and sustainable development. The questionnaire was tested in one organisation, and the results were statistically analysed using SPSS.Findings: The results indicate that the developed questionnaire needs further development and more tests since the composition of the factors and statements did not reach an acceptable value for internal consistency reliability in the selectedorganisation. The need for development of measurements of organisational culture remains, including system view and longtermthinking. Sustainable development is complex with several different parts, which creates challenges when combined with quality development. Practical implications: Results from the measurement tools used can be inputs for organisational business strategies and goals and ultimately can affect organisational results. To put more focus on sustainability, the questionnaire can be that input for organisations.

  • 42.
    Nyberg, David
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Optimering av tandgeometrin på Nord-Locks rostfria kamlåsbricka: Formulering av matematisk modell för optimering   av tandgeometrin2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Nord-Lock is the company that introduced the   wedge-locking washer in the nineteen-eighties and patented its function.   Since the expiration of the patent of the wedge-locking washer several other   washer manufacturers has started producing similar washers using the same functional   principle. This leads to an increased competition in the marketplace   demanding that Nord-Lock has the highest quality washers and that their   performance is unrivaled by competitors in order to remain at the forefront   of washer-technology.  The purpose of   this research project has been to develop a mathematical model to specify how   the teeth-like contact surface of the washer grip the bolt head or nuts to   ensure that they remain locked together and to use this model to improve the   performance of the washers. The research began by examining the indentation   the teeth left on the contact surface of the nuts by microscopy.  This allowed for mathematical expressions   to be formed that could explain the relationship between the width and length   of the indentation.  The equation that   is used to determine the area of the indentation in Vickers hardness testing   was then used as a starting point for development of the mathematical   model.  This resulted in three   mathematical expressions expressing the indentation length, the indentation   width and the indentation depth. These expressions allowed for the   optimization of the washer to be conducted. The results from the optimization   imply that improvement of the washers is possible through non-extensive   changes in their geometry.

  • 43.
    Odén Ryhede, Katarina
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Perspektiv på delaktighet: Vad chefer ser som möjliggörande och vad medarbetare upplever2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Previous research shows that leadership is crucial if an organizations quality work is going to be successful. However, a central part of quality work is the coworkers abil-ity to participate. As the majority of theories in this area are leadershipcentered, this study is therefore focused on the coworkers conditions for participation.

    The purpose of this studie has been to understand how managers enable coworkers to participate in the quality work and how the coworkers experience this. The studie has a qualititative approach and has been done with the use of two surveys, one qualitative and one qvantitative. 15 managers with a total of 700 coworkers of two municipalities participated.

    The study shows that the managers coherently values the coworkers participation as to be central in the organizations quality work. There are structures that both include and require the coworkers participation. Three areas were identified as central to participation, leadership, structures for quality work and an organizational culture. From these three areas have two perspectives on participation emerged, a structural and a relational. Even the coworkergroups in the study are relatively coherently regarding participation. In much the same coworkergroups experience most and least positive regarding questions of participation in quality work.The coworkers who are experiencing the most amounts of participation have manangers who emphasizes a relational perspective in his leadership.

    A key conclusion is that, in addition to distinct leadership and quality management structures, it also promotes coworkers experience of participation if the leader has a relational perspective on the leadership.

  • 44.
    Olofsson, Simon
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Justerbar aluminiumprofil till temporärt skyddsräckessystem för byggnader med större spännvidd2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    För att arbeten ska kunna utföras säkrare på höga höjder   är det lagstadgat att fallskydd ska användas där risk för fall föreligger.   Fallskydd kan konstrueras på olika sätt och i detta arbete avses system för   byggnader med större spännvidder, till exempel en hallbyggnad. Företaget   Safety Respect efterfrågar en design till en detalj till ett nytt system för   dessa typer av byggnader. Den detalj som efterfrågas är en tredelad   teleskopbar aluminiumprofil. Denna ska uppfylla delar av de belastningskrav   som ställs i standardiseringen för temporära skyddsräckessystem.   Projektresultatet ska ligga som grund för ett konstruktionsunderlag för   företaget. För att nå målet har uppdragstagaren arbetat enligt en   milstolpeplanering, utfört förenklade beräkningar och ställt upp   optimeringsproblem för att generera en profil som uppfyller kraven. Under   metoddelens senare del har profilen dimensionerats mot de toleranskrav som   ställs i standardiseringen för strängpressad aluminium. Detta har genererat   en tredelad justerbar profil med dimensioner som skulle kunna erbjuda   infästningar åt externa komponenter samt att profilen har mjuka kanter som   kan göra den behaglig att hantera.

    En jämförelseanalys som utförts i arbetet indikerar på att   det är stor skillnad i utböjningen mellan ett förenklat fall för en profil   med ett konstant tvärsnitt mot en profil med ett varierat. Arbetet visar även   att det behövs utföras precisare beräkningar för att hålla nere vikten på en   profil, där det vore till fördel att ställa upp ett optimeringsproblem som   avser en profil med ett varierat tvärsnitt. Det toleranskrav som ställs gör   att en sammansatt profil får ett glapp som kan påverka utböjningen negativt. Detta   bör lösas med en låsning mellan profilerna.

  • 45.
    Olsén, Jon
    et al.
    Stockholm University.
    Shen, Zhijian
    Stockholm University.
    Liu, Leifeng
    University of Birmingham, Birmingham, United Kingdom.
    Koptyug, Andrey
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Rännar, Lars-Erik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Micro- and macro-structural heterogeneities in 316L stainless steel prepared by electron-beam melting2018In: Materials Characterization, ISSN 1044-5803, E-ISSN 1873-4189, Vol. 141, p. 1-7Article in journal (Refereed)
    Abstract [en]

    This is a study of the micro- and macrostructural variations in samples of stainless steel with the overall composition of the grade 316L, produced using electron beam melting. Electron beam melting is one of the processing methods under consideration for manufacturing some of the International Thermo- Nuclear Experimental Reactor In-Vessel components. Therefore further studies of the homogeneity of the material were conducted. Electron beam melting results in a complicated thermal history of the manufactured part giving a significant impact on the microstructure. A cellular structure that is often observed in samples prepared by selective laser melting was found in the top layers of the specimens. Further down, the structure changed until the cellular structure was almost non-existing, and the grain boundaries had become more pronounced. This revelation of a heterogeneous structure throughout the entire part is crucial for large-scale industrial applications like the Thermo- Nuclear Experimental Reactor to make sure that it is understood that the properties of the material might not be the same at every point, as well as to assure that the correct post-treatment is done. It is also exposed that a significant part of this change is due to molybdenum redistribution inside the sample when it diffuses from the cell boundaries into the cells, and into bigger agglomerates in the grain boundaries. This diffusion seems not to affect the microhardness of the samples. 

  • 46.
    Petrone, Nicola
    et al.
    University of Padova, Italy.
    Carraro, Giovanni
    University of Padova, Italy.
    Dal Castello, Stefano
    University of Padova, Italy.
    Broggio, Luca
    University of Padova, Italy.
    Koptioug, Andrei
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    A Novel Instrumented Human Head Surrogate For The Impact Evaluation Of Helmets2018In: Proceedings, Volume 2, ISEA 2018 / [ed] Dr Hugo Espinosa, David R. Rowlands, Jonathan Shepherd, Professor David Thiel, 2018, Vol. 2, p. 269-, article id 6Conference paper (Refereed)
    Abstract [en]

    A novel Human Head Surrogate was obtained from available MRI scans of a 50th percentile male human head. Addictive manufacturing was used to produce the skull, the brain and the skin. All original MRI geometries were partially smoothed and adjusted to provide the best biofidelity compatible with printing and molding technology. The skull was 3D-printed in ABS and ten pressure sensors were placed into it. The brain surrogate was cast from silicon rubber in the 3d-printed plastic molds. Nine tri-axial accelerometers (placed at the tops of the lobes, at the sides of the lobes, in the cerebellum and in the center of mass) and a three-axis gyroscope (at the center of mass) were inserted into the silicon brain during casting. The cranium, after assembly with brain, was filled with silicon oil mimicking the cerebral fluid. Silicon rubber was cast in additional 3d-printed molds to form the skin surrounding the cranium. The skull base was adapted to be compatible with the Hybrid-III neck and allow the exit of brain sensors cabling. Preliminary experiments were carried out proving the functionality of the surrogate. Results showed how multiple accelerometers and pressure sensors allowed a better comprehension of the head complex motion during impacts.

  • 47.
    Petrone, Nicola
    et al.
    University of Padova, Italy.
    Giacomin, Marco
    University of Padova, Italy.
    Koptioug, Andrei
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Bäckström, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Racing Wheels’ Effect on Drag/Side Forces Acting on a Cyclist at Sportstech-Miun Wind Tunnel2018In: Proceedings, Volume 2, ISEA 2018 / [ed] Dr Hugo Espinosa, David R. Rowlands, Jonathan Shepherd, Professor David Thiel, 2018, Vol. 2, p. 210-, article id 6Conference paper (Refereed)
    Abstract [en]

    Abstract: the wind tunnel at the SportsTech Research Centre at Mid Sweden University (MIUN, Östersund) was opened in 2015 for sports technology research. It is dedicated primarily to analysis of equipment performance and garment development and especially suitable for roller skiing, running and cycling. The aim of this work was to develop a full-scale study to investigate the aerodynamic behaviour of a cyclist facing front and cross wind at different yaw angles (from 0° to 30°) and speeds. To reach this goal, a rotating structure supported by a force platform was constructed. It includes a set of rollers on which fully unrestrained cycling is possible. The method was applied to the comparison of three wheelsets (differing in material, height and shape of the rim, number and shape of spokes) in terms of drag and side aerodynamic forces during a cyclist’s ride at 30 km/h, while keeping all the other factors constant. Resulting curves allowed estimating differences of 4% and 9% when applied to a recent time trial competition.

  • 48.
    Pettersson, Emma
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Att leda genom värderingar: Förekomsten av värderingar inom spiritual leadership bland svenska ledare2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of the study was to investigate which of the values of spiritual leadership emerges in the leadership of leaders in Sweden, and if there is an indication of spiritual leadership in their leadership. The theoretical framework is based on the importance of leadership in quality management, leadership values and spiritual leadership. The scientific approach is hermeneutic, inductive and the data collection method is a mixed method consisting of both questionnaire and interviews. The resultshows that all values based on spiritual leadership are used by the leaders and are also experienced by the employees. However, there is a discrepancy between the leaders and the employees' views on which ones are the most and least common. There is also a discrepancy around the extent to which values are perceived to occur in leadership. The conclusion is that there are tendencies to some indication of spiritual leadership due to that all values of spiritual leadership are experienced in the conduct of the leader, both from the leaders and the employees perspective. However, more in-depth research is required to fully determine the extent to which a spiritual leadership is used by Swedish leaders.

  • 49.
    Popov, Vladimir
    et al.
    Israel Institute of Metals, Technion RandD Foundation, Technion City, Haifa, Israel.
    Koptioug, Andrei
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Radulov, Iliya
    Technische Universität Darmstadt, Darmstadt, Germany.
    Maccari, Fernando
    Technische Universität Darmstadt, Darmstadt, Germany.
    Muller, Gary
    Israel Institute of Metals, Technion RandD Foundation, Technion City, Haifa, Israel.
    Prospects of additive manufacturing of rare-earth and non-rare-earth permanent magnets2018In: Procedia Manufacturing, E-ISSN 2351-9789, Vol. 21, p. 100-108Article in journal (Refereed)
    Abstract [en]

    Additive manufacturing (AM) or 3D-printing started as a prototyping technique in plastic has succeeded in metals for life safety applications as airspace and medical implants production. Today having advantages in fabricating products of desired shape, geometry, lightweight structures and required mechanical properties, 3D-printing faces a new challenge - AM of permanent magnets (PM). 3D-printing significantly simplifies manufacturing of net-shape bonded magnets, simplifies the new phase magnets prototyping, and also enables efficient use of rare earth (RE) elements [1]. The major development nowadays is performed by AM of bonded Nd-Fe-B using different binders/polymers [1, 2]. 3D printing technologies of non-RE magnets are not so widely represented [3]. The AM of RE-free PM, such as Al-Ni-Co [4] and MnAl(C) [5], is also developed, because of their great benefit of being non-RE, presenting advantages of AM technology and sufficient magnetic properties. This work presents the state-of-the-art of 3D-printing of PM, including RE and RE-free, bonded and non-bonded magnets. Prospects of electron beam melting (EBM) of non-rare-earth MnAl(C) are shown. 

  • 50.
    Prekopic, Suzanna
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    ”Lönsamt ledarskap”: Sambandet mellan ledarskap, TQM, effektivitet och lönsamhet2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Idag står organisationer inför ständiga utmaningar att förändra och effektivisera sin verksamhet, vilket kan förklaras med det ökade kravet på ökad lönsamhet och kostnadsnedskärningar. Detta har bidragit till att företagsledningar oftast löser dessa ökade krav genom kostnadsrationaliseringar. Dock har det visat sig vara mindre framgångsrikt. Ambitionen med examensarbetet har varit att undersöka hur ledarskap kan utövas för att uppnå TQM, effektivitet och lönsamhet.

    Ett svenskt byggföretag har varit föremål för denna fallstudie. Fallstudien har genomförts genom strukturerade djupintervjuer med tre gruppchefer samt enkätfrågor till medarbetare.

    Det huvudsakliga resultatet från den här uppsatsen är begreppet lönsamt ledarskap, vilket är genererat ur det analyserade materialet. Studiens resultat visar att det är flera faktorer som bidrar till det lönsamma ledarskapet. Resultatet visar att hörnstenarna i hörnstensmodellen är en stor bidragande faktor till det lönsamma ledarskapet. Emellertid har studiens resultat kommit fram till att den sjätte hörnstenen “engagerat ledarskap” är mycket viktig för organisationens framgångssaga vad gäller lönsamhet, kortsiktigt som långsiktigt.

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