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  • 1.
    Abbas, Umar
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Barnets bästa – en utveckling inom Kriminalvården: En fallstudie om hur kriminalvården utvecklar sin verksamhet efter att barnkonventionen blev lag i Sverige.2021Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The starting point for the study was that the Swedish Prison and Probation Service received criticism from the Committee on the Rights of the Child when it comes to children of parents who are deprived of their liberty, criticism that children travel far to visit their parents, and criticism that children who travel far may not automatically extend their visit to certain institutions. At the same time, research has pointed to challenges and important conditions for considering the Convention on the Rights of the Child in the prison service. In a Swedish context, after the Convention on the Rights of the Child becomes law in Sweden in 2020, the organizational development with regard to fulfilling children's rights in the public sector has been relatively unexplored. The research aims to fill part of that knowledge gap. The purpose of the study is to see how the Swedish Prison and Probation Service develops with regard to compliance with the Convention on the Rights of the Child. The issues focus on how the prison service improves its activities in order to constantly consider the Convention on the Rights of the Child in matters concerning children. The study was conducted through a qualitative study. Data collection for this study was done through semi-structured interviews, nine respondents who are children's representatives at different levels in the hierarchy in the region west. The study shows that the Swedish Prison and Probation Service controls processes centrally from above by informing legislation, national guidelines for communicating how the Convention on the Rights of the Child is taken into account to regions and then to local units. Then each unit interprets the guidelines in the way that suits the unit type, such as detention, institution, or probation. The study shows that more cooperation is needed between different authorities to promote work for the best interests of the child. According to the study, however, it is not enough to consider children's conventions in the handbooks or through training, but there must be a personal commitment on the part of employees considered customer-oriented.

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  • 2.
    Abdulamir, Ahmed
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
    Utredning av värmeåtervinning från livsmedelsbutik som använder CO2 kylanläggning till byggnaden: Effektivisering av CO2 kylanläggning genom att utnyttja värmeåtervinning för att minska vattenförbrukning till nödkylan2021Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med detta arbete är att undersöka om värmeenergin från CO2 kyl-/frysaggregat i en livsmedelsbutik kan motsvara värmeenergibehovet till butiken och byggnaden samt undersöka möjligheten att minska vattenförbrukningen till att nödkyla värmeväxlare.  Genom litteraturstudie och datainsamling av relevanta parametrar, beräknades värmeenergibehovet för byggnaden, butiken och den producerade värmeenergin från kylanläggningen. En energibalansberäkning utfördes för att verifiera resultat och kartlägga hur värmeenergin fördelas i de olika delarna av värmeåtervinningskretsen. En förbättringsåtgärd presenterats för att sänka värmeåtervinnings returledningstemperatur och med det kan vattenförbrukningen minskas.

  • 3.
    Abrahamsson, Camilla
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Fastén, Emma
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Primärvården under förändring: Upplevelsen av ett digitaliserat arbetssätt2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Digital technology offers new ways to meet patients, which is more relevant than ever during thecurrent pandemic. The digitalisation is mainly intended to make healthcare more efficient in orderto treat more patients. Previous research suggests that the human aspect of digitalisation hasreceived less attention than technical issues. The new technology brings new ways for thehealthcare profession to carry out its work. The purpose of this study is to investigate how theemployee experience a digitized work process in a primary care setting.This qualitative study was conducted through semi-structured interviews with six informantswithin a private primary care group in Västernorrland. The Primary care organisation is at thebeginning of their digitization journey and when interviewed, only a few employees had tried howit is like to work digitally. The collected material has been clarified through a content analysisfocusing on the content of three of the cornerstones in the cornerstone model; quality (continuousimprovement), participation and the customer value.The study reveals that the informants feel that a digitized way of working can provide time savingsthrough more effective assessments. At present, however, the new technology is not perceived ascompletely reliable and needs to be improved to function as intended. In the digital work process,the informants believe that the nurse will probably play a more central role. The interviewees alsobelieve that trust in each other, clear roles and that everyone is well informed about what the digitalwork process sustains, is of great importance.

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  • 4.
    Abrahamsson, Camilla
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Lilja, Johan
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Hedlund, Christer
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Towards New Levels of Creating/Improving and Understanding Value in Swedish Municipalities: A Review of Research on Understanding and Creating Value in Municipal Quality Development by Qualitative Approaches (and Co-Creation)2017Conference paper (Refereed)
    Abstract [en]

    Purpose

    Quality management and Lean initiatives are currently widespread in the Swedish municipal sector. It is also made clear that all Lean initiatives should be initiated to benefit the customer and not for internal organizational reasons. However, the practices currently used for understanding value creation in the municipalities tend to focus heavily on the use of numerical, quantitative approaches. In sharp contrast, the growing field of, for example, design thinking argue that qualitative approaches are key when it comes to getting closer to the citizens, establishing new levels of understanding and thereby inspiring new and better solutions. In sum, it seems likely that municipalities are struggling with developing quality due to relying, in too one-sided on the use of quantitative rather than qualitative approaches to understand and spark new levels of value creation. The purpose of this paper is to contribute with a review of research concerning qualitative approaches for understanding and co-creating value in municipal quality development.

     

    Methodology/Approach The paper is based on a literature review.

     

    Findings The paper provides an overview of previous research concerning practices for evaluating and understanding value creation in the context of a municipal quality development.

     

    Value of the paper

    This overview is of value for practitioners within the context, as well as researchers that wants to contribute within this area.

  • 5.
    Abrahamsson, Mattias
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
    Säsongslagring av överskottsenergi2022Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Genom att kartlägga smältugnarna och dess kylvattensystem inom Åkers Sweden AB har en studie genomförts för att analysera vilken potential det finns till att ytterligare återvinna överskottsenergi. Detta har genomförts för att uppfylla de av Sverige ställda miljö- och energi-mål till år 2030 som dels handlar om att vi behöver energieffektivisera våra processer och tillföra mindre energi för att uppnå samma resultat som tidigare.

    Uppdraget är genomfört på uppdrag av Åkers Ledningsgrupp som önskar förstå om det finns tekniska och ekonomiska förutsättningar att starta upp ett projekt för att investera i ett energilager. Överskottsenergi som idag inte kan tillvaratas kyls bort med sjövatten vilket kan betraktas som ett rent energislöseri.

    Resultatet påvisar att det finns en potential till att återvinna ytterligare 2 GWh överskottsenergi vilka är möjliga att lagra i ett energilager till en investeringskostnad på 21 MSEK.

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  • 6.
    Actins, Erik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Science, Design, and Sustainable Development (2023-).
    Åtgärder vid oförbränt i aska: Analys och åtgärder vid förbränning i rosterpanna2023Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The following report reflects a degree project carried out at Solör Bioenergi, the project has aimed to evaluate the high proportion of unburned that occurs during their combustion. Solör owns the plant in Nora and supplies the town with district heating. This is done by burning biomass and the fuel consists of sawdust and stemwood chips. During a large part of the heating season, these fuels are mixed with each other. But during the warm season, only sawdust is burned. For the evaluation, information from course literature has been collected. Together with studying of research reports, they have helped to gather knowledge for the project and what factors can affect an combustion. The results of the literature study have been compared with a performed current situation analysis together with several interviews with operating technicians, plant managers and external contractors. This working methodology has created an overall picture of combustion in the boiler and has enabled the design of a list of proposed measures. The list can be found in a separate section, together with a financial calculation. The reliability of the recommended measures has also been confirmed with a test run, where applied theory has improved combustion. A general conclusion that can be drawn after the work shows how important a good process control is for increased fuel utilization, this can be summarized with the basic rule for the design of control systems:

    -What can be automated, should be automated.

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  • 7.
    Adelholt, Martin
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
    Hydra Coupler: Snabbkoppling till protessystem2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Många amputerade upplever att deras protessystem inte är lika anpassningsbara som de hoppats på. Dagens protes­system är utformade med låsta komponenter vilket begrän­sar användarens möjlighet att anpassa systemen till specifika ändamål. Därför påbörjades ett projekt med målet att under­söka om det finns möjlighet att skapa en snabbkoppling till protessystem genom att framställa ett konstruktionsförslag av ett lösningsalternativ. I starten av projektet påbörjades en problemformulering för att undersöka om problemen uppvisade några beroenden eller påverkade andra poster inom det framställda flödesschemat. Efter genomförd problemformulering påbörjades förstudierna för att samla in relevant information till genomförandet av projektet, där förstudien genomfördes med hjälp av en konkurrensanalys, funktionsanalys och enkätundersökning. Efter att förstudien var avklarad påbörjades en designprocess för att framställa ett konstruktionsförslag av ett lösningsförslag. Under designprocessens start formulerades en kravspecifikation så att konstruktionsförslaget hade något att förhålla sig till, och sedan påbörjades modelleringen av ett konstruktionsförslag med hjälp av Solidworks. En prototyp framställdes i plast med hjälp av en 3D- printer för att kontrollera passform av ingående komponenter och slutligen så undersöktes konstruktionsförslagets hållfasthet i Solidworks med hjälp av hållfasthetssimuleringar. Genomförandet av projektet har resulterat i en framställning av konstruktionsmaterial, prototyp, konstruktionsritningar till ett konstruktionsförslag av en snabbkoppling till protessystem. Konstruktionsförslaget kallat Hydra Coupler förser protesanvändare med möjligheten att enkelt byta proteskomponenter efter ändamål utan behov av externa verktyg, och Hydra Coupler kan även inneslutas av kosmetik utan att förlora funktionalitet.

  • 8.
    Adelholt, Martin
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
    Production preparations of Hydra Coupler: Preparations, Planning, Calculations2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • 9.
    Adelholt, martin
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
    Production preparations of Hydra Coupler: Preparations, Planning, Calculations2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • 10.
    Agélii, Anni
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Skolbibliotekskultur finns det?: En ansats att söka efter gemensamma värderingar i ett urval av erkänt framgångsrika skolbiblioteksverksamheter.2022Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Quality culture is part of the organizational culture and an important part of maintaining or changing an organizational culture is the leadership. In school organizations there are many demands on the content and quality of the activities in terms of laws and governing documents. The systematic quality work must include teachers, other employees, students and their guardians. The person ultimately responsible for the work at the school unit is the school's principal. A state surevey published in 2021 describes the complex function that an effective school library should have. The state survey emphasizes the importance of the principal's leadership in order for the school library to be part of the teaching and that the quality of the school library must be high. The purpose of this the survey is to explore which underlying values are favorable for the school library's quality work. What characterizes the organizational culture of successful school libraries and in what way are they managed and organized. This survey is designed through a qualitative method and has an abductive approach. Empirical data was collected through ten semi-structured interviews. The results showed that even if there is no pronounced work with total quality management in the school libraries inlcuded in this survey, quality culture values are found. In addition to these, a co-leadership based on competence and participation appears. The meaning of leadership becomes an individual and a collective process that requires both leaders, followers and meaning-making context. The work with the school library becomes a clear part of the school's development. The starting point for both the principal and the school librarian is the action plan which is locally designed for the school library.

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  • 11.
    Ahokas, Karri
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
    Identifiering av värmekällor som kan minska behovet av direktånga i mixgroparna på Ortvikens pappersbruk2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    SCA Ortviken är ett pappersbruk i Sundsvall. Arbetets syfte var att identifiera åtgärder som leder till minskat behov att direktånga. Examensarbetet är delat i två deluppgifter.

    I december 2015 stängdes pappersmaskin 2 ner. Sedan dess har fördelningen av sju stycken värmeväxlare som förvärmer bakvattnet i papperstillverkning varit oförändrad.

    Direktånga används för att kompensera för värmebehov som inte nås med värmeväxlarna. Ångdata från pappersmaskinerna kartlagdes för att identifiera vilken fördelning av värmeväxlare skulle ledas till största effektivitet. Effekterna i värmeväxlare beräknades med NTU-metoden. Den effektivaste fördelning av värmeväxlare är den rådande fördelningen om inte värmeväxlare sju kopplas till pappersmaskin fem.

    Ångan från rejektraffinörer R81-R84 måste släppas ut i luften på grund av tryckförlusterna i den långa ledningen som leder ångan till ångomformaren. Syftet med uppgiften är att beräkna hur mycket ånga kan tas till vara på genom att leda ångan till en venturiskrubber som tar vara på värmen från andra processer.  Ångdata från bruket analyserades och genomarbetades så att ångflödet kunde simuleras med ett tryckförlust program, fluidflow3. Simuleringen gav resultatet att ungefär 17 500 MWh per år skulle kunna tas till vara på, om ånga skulle ledas till venturiskrubbern.

    Det har gjorts förenklingar i beräkningar och simuleringar men resultatet från uppgifterna ger en bra uppskattning på storleksordning på möjliga besparingar.

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  • 12.
    Ainegren, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Roller skis' rolling resistance and grip characteristics: influences on physiological and performance measures in cross-country skiers2012Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The aim of this thesis was to investigate roller ski characteristics; classical and freestyle roller skis’ rolling resistance coefficients (μR) and classical style roller skis’ static friction coefficients (μS), and to study the influence of different μR and μS on cross-country skiers’ performance and both physiological and biomechanical indices. The aim was also to study differences in skiing economy and efficiency between recreational skiers, female and male junior and senior elite cross-country skiers.The experiments showed that during a time period of 30 minutes of rolling on a treadmill (warm-up), μR decreased significantly (p<0.05) to about 60-65 % and 70-75 % of its initial value for freestyle and classical roller skis respectively. Also, there was a significant influence of normal force on μR, while different velocities and inclinations of the treadmill only resulted in small changes in μR.The study of the influence on physiological variables of a ~50 % change in μR showed that during submaximal steady rate exercise, external power, oxygen uptake, heart rate and blood lactate were significantly changed, while there were non-significant or only small changes to cycle rate, cycle length and ratings of perceived exertion. Incremental maximal tests showed that time to exhaustion was significantly changed and this occurred without a change in maximal power, maximal oxygen uptake, maximal heart rate and blood lactate, and that the influence on ratings of perceived exertion was non-significant or small.The study of classical style roller skis μS showed values that were five to eight times more than the values of μS reported from on-snow skiing with grip-waxed cross-country skis.The subsequent physiological and biomechanical experiments with different μS showed a significantly lower skiing economy (~14 % higher v̇O2), higher heart rate, lower propulsive forces coming from the legs and shorter time to exhaustion (~30 %) when using a different type of roller ski with a μS similar to on-snow skiing, while there was no difference between tests when using different pairs of roller skis with a (similar) higher μS.The part of the thesis which focused on skiing economy and efficiency as a function of skill, age and gender, showed that the elite cross-country skiers had better skiing economy and higher gross efficiency (5-18 %) compared with the recreational skiers, and the senior elite had better economy and higher efficiency (4-5 %) than their junior counterparts, while no differences could be found between the genders.

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    Doctoral thesis 125
  • 13.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Laaksonen, Marko S.
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    The influence of grip on oxygen consumption and leg forces when using classical style roller skis2014In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 24, no 2, p. 301-310Article in journal (Refereed)
    Abstract [en]

    The purpose of this study was to investigate the influence of classical style roller skis' grip (static friction coefficients, μ S) on cross-country skiers' oxygen consumption and leg forces during treadmill roller skiing, when using the diagonal stride and kick double poling techniques. The study used ratcheted wheel roller skis from the open market and a uniquely designed roller ski with an adjustable camber and grip function. The results showed significantly (P≤0.05) higher oxygen consumption (∼14%), heart rate (∼7%), and lower propulsive forces from the legs during submaximal exercise and a shorter time to exhaustion (∼30%) in incremental maximal tests when using roller skis with a μ S similar to on-snow skiing, while there was no difference between tests when using different pairs of roller skis with a similar, higher μ S. Thus, we concluded that oxygen consumption (skiing economy), propulsive leg forces, and performance time are highly changed for the worse when using roller skis with a lower μ S, such as for on-snow skiing with grip-waxed cross-country skis, in comparison to ratcheted wheel roller skis with several times higher μ S.

  • 14.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    A portable roller ski rolling resistance measurement system2013In: The Impact of Technology on Sport V: Procedia Engineering / [ed] Subic A, Fuss FK, Clifton P, Chan KM., Elsevier, 2013, p. 79-83Conference paper (Refereed)
    Abstract [en]

    Roller skis are used by cross-country skiers, biathletes and ski-orienteers for their snow-free training and in roller ski competitions. Additionally, much of the current sports research into the physiology and biomechanics of crosscountry skiing is conducted indoors on treadmills using roller skis. For elite athletes, the differences in performance are quite small, thus emphasising the importance of knowing the roller skis' rolling resistance coefficient, especially in connection to research and roller ski competitions. The purpose of this study was to develop a roller ski rolling resistance measurement system (P-RRMS) that is portable and therefore useful in different contexts and locations. The P-RRMS was designed as a small treadmill, equipped with roller ski stabilizing lateral supports and a screwed bar for applying different vertical loads on the roller ski. The design uses only one force sensor, with possible measurements of three directions of force and torque around three axes. The weight of the P-RRMS is 100 kg and it is equipped with wheels to facilitate transportation.

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    Ainegren_Portable_roller_ski
  • 15.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    An experimental study to compare the grip of classical style roller skis with on-snow skiing2013In: Sports Engineering, ISSN 1369-7072, E-ISSN 1460-2687, Vol. 16, no 2, p. 115-122Article in journal (Refereed)
    Abstract [en]

    Cross-country skiers use roller skis for their snow-free training with the aim of imitating skiing on snow. Also, exercise laboratories evaluate the biomechanics and physiology of cross-country skiing using roller skis on a treadmill. The roller skis on the market that are constructed for use in the classical style are equipped with a front and a back wheel, one of which has a ratchet to enable it to grip the surface when diagonal striding and kick double poling (static friction). The aim of this study was to investigate static friction coefficients (μS) of ratcheted wheel roller skis, and compare the results to the μS reported from skiing on snow with grip-waxed cross-country skis. Also, a new type of roller ski with a camber and adjustable grip function was evaluated. The results showed that ratcheted wheel roller skis, on a treadmill rubber mat and on dry and wet asphalt surfaces, reached μS values that were five to eight times greater than the values reported from on-snow skiing with grip-waxed cross-country skis. For the roller skis with a camber and adjustable grip function, the μs could be varied from no grip at all up to the level of the tested ratcheted wheel roller skis.

  • 16.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Classical style constructed roller skis and grip functionality2011In: Procedia Engineering: The Impact of Technology on Sports IV / [ed] Subic A., Fuss F.K., Alam F., Clifton P., Elsevier, 2011, p. 4-9Conference paper (Refereed)
    Abstract [en]

    Roller skis are used by cross-country skiers for snow-free training, with the aim of imitating skiing on snow. The roller skis on the market that are constructed for use in the classical style are equipped with a front and a back wheel, one of which has a ratchet to enable it to grip the surface when diagonal striding and kick double poling.

    A new type of roller ski was constructed with a function which makes it necessary to use the same kick technique as that used on snow, i.e. the ski has a camber that must be pushed down to obtain grip. Its stiffness can be adjusted based on factors that influence grip, i.e. the skier’s bodyweight and technical skiing skills.

    Thus, our aim was to make comparative measurements as regards grip between ratcheted roller skis and the roller ski with a camber and compare with previous published results for grip waxed skis during cross-country skiing on snow.  The measurements were carried out using specially developed equipment, with a bottom plate and an overlying rubber mat of the same type as used on many treadmills and a function for applying different loads and generating traction on the back of the roller ski.

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  • 17.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development. Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Roller ski rolling resistance and its effects on elite athletes’ performance2009In: Sports Engineering, ISSN 1369-7072, E-ISSN 1460-2687, Vol. 11, no 3, p. 143-157Article in journal (Refereed)
    Abstract [en]

    Modern ski-treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical fitness in a laboratory environment whilst performing classical and freestyle (skating) techniques on roller skis. For elite athletes, the differences in performance between test occasions are quite small, thus emphasising the importance of knowing the roller skis’ rolling resistance in order to allow the correct comparison between the results of different test occasions. In this study, the roller skis’ rolling resistance was measured on the ski-treadmill’s surface using a roller ski rolling resistance measurement system specially produced for this purpose. The study investigated the influence of significant changes in rolling resistance on physiological variables. The results showed that during submaximal exercise, power, oxygen uptake, heart rate and blood lactate were significantly changed by different rolling resistances, while there were no significant or only small changes to cycle rate, cycle length and ratings of perceived exertion. Incremental maximal tests showed that time to exhaustion was significantly changed by different rolling resistances and this occurred without significant changes in maximal power, maximal oxygen uptake, maximal heart rate and blood lactate, and that the influence on ratings of perceived exertion were insignificant or small.

     

  • 18.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development. Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Roller ski rolling resistance and its effects on elite athletes’ performance2008In: ENGINEERING OF SPORT 7, VOL 2, 2008, Vol. 11, no 3, p. 393-400Conference paper (Refereed)
    Abstract [en]

    Modern ski-treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical fitness in a laboratory environment whilst performing classical and freestyle (skating) techniques on roller skis. For elite athletes the differences in performance between test occasions are quite small, thus emphasising the importance of knowing the roller skis’ rolling resistance in order to allow the correct comparison between the results of different test occasions. In this study the roller skis’ rolling resistance has been measured using equipment on the ski-treadmill. The study investigates the influence of significant changes in rolling resistance on physiological variables. The results show that during submaximal exercise, heart rate, blood lactate, power and oxygen uptake are significantly changed by different rolling resistances, while there are no significant or only small changes to cycle rate, cycle length and ratings of perceived exertion. Incremental maximal tests show that time to exhaustion is significantly changed by different rolling resistances and this occurred without significant changes in maximal oxygen uptake and heart rate, and the influence on maximal power and ratings of perceived exertion were insignificant or small.

  • 19.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development. Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Rolling resistance for treadmill roller skiing2008In: Sports Engineering, ISSN 1369-7072, E-ISSN 1460-2687, Vol. 11, no 1, p. 23-29Article in journal (Refereed)
    Abstract [en]

    Modern treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical performance under laboratory conditions using classical and freestyle techniques on roller skis. The differences in performance between tests are quite small for elite athletes, and it is therefore of great importance to control the rolling resistance of the roller skis. Otherwise different physiological tests cannot be accurately compared.

    This study shows that during a warm-up period of  30 minutes the coefficient of rolling resistance (µR) decreases to about 60-65% and 70-75% of its initial value for freestyle and classical roller skis respectively.

    Simultaneous measurements of temperature and µR shows that stabilized rolling resistance corresponds to a certain running temperature for a given normal force on the roller ski.

    Tests were also performed on the influence on µR of normal force, velocity and inclination. Normal forces produced significant influence on µR , while different velocities and inclinations of the treadmill only resulted in small changes in µR.

  • 20.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Rolling resistance for treadmill roller skiing: Presented at International Congress on Science and Nordic Skiing 2006, June 18-20, 2006, Vuokatti, Finland2006Conference paper (Other academic)
  • 21.
    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.

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  • 22.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Linnamo, Vesa
    Lindinger, Stefan
    Effects of Aerodynamic Drag and Drafting on Propulsive Force and Oxygen Consumption in Double Poling Cross-Country Skiing2022In: Medicine & Science in Sports & Exercise, ISSN 0195-9131, E-ISSN 1530-0315, Vol. 54, no 7, p. 1058-1065Article in journal (Refereed)
    Abstract [en]

    Purpose This study aimed to investigate the effects of aerodynamic drag and drafting on propulsive force (FPROP), drag area (CDA), oxygen cost (V˙O2), metabolic rate (Ė), and heart rate (HR) during roller skiing on a treadmill in a wind tunnel using the double poling technique. A secondary aim was to investigate the effects of wind versus no-wind test conditions on the same physiological parameters. Methods Ten subjects of each gender participated in the experiments. One pair of skiers of the same gender roller skied simultaneously in line with the air flow; the distance between the skiers was 2.05 m. Each pair was tested as follows: I) with wind, leading; II) with wind, drafting; and III) without wind. The treadmill inclination was 0° throughout the tests. For the wind conditions, the air velocity was similar to the treadmill belt speed: 3 to 7 m·s-1 for men and 3 to 6 m·s-1 for women. Results Drafting resulted in significantly (P < 0.05) lower FPROP,CDA, V˙O2, and Ė, compared with leading, for both genders at racing speed but not at lower speeds, whereas HR was only affected for the male skiers at racing speed. The test without wind resulted in significantly lower FPROP, V˙O2, and Ė at all tested speeds compared with the tests with wind present, whereas HR was lower only at higher speeds. Conclusions At racing speed, but not at lower speeds, the positive effects of drafting behind a skier during double poling were obvious and resulted in a lower FPROP, CDA, V˙O2, Ė, and HR. Tests without wind present put even lower demands on the skiers' physiology, which was also evident at lower speeds. 

  • 23.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering. SportsTech Research Centre, Mid Sweden University.
    Michel, Frank
    Vaude Sports GmbH & Co., I-Team, Tettnang, Germany.
    Klauer, Robert
    Vaude Sports GmbH & Co., I-Team, Tettnang, Germany.
    Kopyug, Andrey
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering. Mid Sweden University, Dept of Mechanical Engineering.
    Bäckström, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering. SportsTech Research Centre, Mid Sweden University.
    Samuelsson, David
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Ahnesjö, Magnus
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Litzenberger, Stefan
    Competence Center Sports Engineering, Biomechanics & Ergonomics, University of Applied Sciences Technikum, Wien, Austria.
    A Study of Skin-Close Heat and Moisture with Different Types of Backpacks in Cycling2020In: The 13th Conference of the International Sports Engineering Association / [ed] Motomu Nakashima, Takeo Maruyama and Yusuke Miyazaki, MDPI, 2020, Vol. 49, article id 86Conference paper (Refereed)
    Abstract [en]

    The aim of this project was to evaluate effects of backpacks with different design intended for use during cycling on skin-close temperature and relative humidity, oxygen uptake, heart rate and aerodynamic drag. Seven subjects took part in the study cycling on a mountain bike mounted on a “smart trainer” placed on a force plate in a wind tunnel. Three series of experiments were carried out: without backpack, with conventional backpack and with a backpack having innovative rear panel design. As hypothesized, the results showed that an innovatively designed backpack with the ducts deflecting part of the airflow towards some areas of the user’s back provided lower temperature and relative humidity for the microclimate compared to a conventional backpack without airflow channels. Further, reference tests without any backpack resulted in the lowest temperature and humidity. However, no differences were found between the three tests for oxygen uptake, heart rate and aerodynamic drag.

  • 24.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Rännar, Lars-Erik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    The multi functional roller ski2012Conference paper (Refereed)
  • 25.
    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 experimentation2019In: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, ISSN 1754-3371, Vol. 233, no 1, p. 86-100Article 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.

  • 26.
    Airikka, Marcus
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Mathematics, and Science Education (2023-).
    Produktutveckling av lättviktsvindskydd: En jämförelsestudie inriktad på Trangias stormkök2023Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Trangia is a brand that has been developing camping stoves since year 1925. In today's portfolio, they have no options for lightweight hikers, however, they are developing a new concept that they believe will suit this target group. The purpose of this report is to find out how a new windshield can look like for Trangias new product and develop a final concept. This has been done by examining the existing products: Trangia 27–1 UL, Optimus Elektra FE and a stand-alone aluminium foil windshield. Prototypes have been developed whose effectiveness have been tested in a wind tunnel, both without and with wind (5–6 m/s).A wind tunnel was constructed for the project in order to carry out these tests. To preserve Trangia's current design, semi-structured interviews have also been performed towards Trangia's staff. The final concept was developed by following a traditional product development.The result shows that the Trangia 27–1 UL was the most efficient kitchen of those tested. In the wind tunnel test, the cooking time of this camping stove had increased by 9.83% with wind, compared to without. The semi-structured interview showed that the design of Trangia's products was soft, robust, and simple.In conclusion, the report shows that a cylindrical wind shield with a sufficiently large ventilation is most efficient during wind load. The product should be able to be packed down and be simple to assemble. On the other hand, further studies are needed to be able to make thorough analyses of the wind shelter. 

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  • 27.
    Akram, Hoger
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Hur påverkar ledares beteende medarbetares arbetstillfredsställelse och arbetsmotivation?2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The employee's job satisfaction has received increasing attention from both researchers and employers. The majority of nowadays organizations executing continuously various surveys to find out how satisfied employees are with their tasks, work environment and development opportunities. Although that there are not many research studies that specifically show how leadership behaviours can affect employees job satisfaction, there is many studies that indicates there is a correlation between them.

     

    The purpose of this study is, to contribute to a better understanding of how different leadership behaviours can affect employee’s satisfaction and work motivation at the work. The quantitative research method has been applied, to address the relation between these subjects. Furthermore, the study has been carried out using a selection method known as snowball selection. The selection method has been an effective method for achieving many participants, which is an important parameter for statistical analysis. Total 306 employees from different companies with different work roles participated in the survey. However, the result of the study is based on 301 employees, since five of the participants were excluded during the analysis due to a lack of answers in the survey.

    The result of this study shows that leadership behaviours which concern employee participation, positive communication, employee development, social responsibility and empathy covary with employees work satisfaction and motivation. This means leadership behaviours have a significant impact on employees job satisfaction, which in turn impact employee work motivation.

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  • 28.
    Akram, Shazad
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
    Bertilsson, Kent
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
    Sidén, Johan
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
    LTspice electro-thermal model of joule heating in high density polyethylene optical fiber microducts2019In: Electronics, E-ISSN 2079-9292, Vol. 8, no 12, article id 1453Article in journal (Refereed)
    Abstract [en]

    At present, optical fiber microducts are joined together by mechanical type joints. Mechanical joints are bulky, require more space in multiple duct installations, and have poor water sealing capability. Optical fiber microducts are made of high-density polyethylene which is considered best for welding by remelting. Mechanical joints can be replaced with welded joints if the outer surface layer of the optical fiber microduct is remelted within one second and without thermal damage to the inner surface of the optical fiber duct. To fulfill these requirements, an electro-thermal model of Joule heat generation using a copper coil and heat propagation inside different layers of optical fiber microducts was developed and validated. The electro-thermal model is based on electro-thermal analogy that uses the electrical equivalent to thermal parameters. Depending upon the geometric shape and material properties of the high-density polyethylene, low-density polyethylene, and copper coil, the thermal resistance and thermal capacitance values were calculated and connected to the Cauer RC-ladder configuration. The power input to Joule heating coil and thermal convection resistance to surrounding air were also calculated and modelled. The calculated thermal model was then simulated in LTspice, and real measurements with 50 µm K-type thermocouples were conducted to check the validity of the model. Due to the non-linear transient thermal behavior of polyethylene and variations in the convection resistance values, the calculated thermal model was then optimized for best curve fitting. Optimizations were conducted for convection resistance and the power input model only. The calculated thermal parameters of the polyethylene layers were kept intact to preserve the thermal model to physical structure relationship. Simulation of the optimized electro-thermal model and actual measurements showed to be in good agreement. 

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  • 29.
    Alali, Alaa
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
    Utveckling av kraftsensors-rigg för vindtunnel: En ny design för kraftsensors-rigg för Mittuniversitets vindtunnel2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A wind tunnel is used to simulate the air flow that acts on, for example, a scaled-down model of a real aircraft wing or a vehicle. Which allows a better understanding of the components that affect the interactions between the air and the object of study, that is to say the forces and torque affecting the object. In order to fully utilize the wind tunnel in the laboratory at Mid Sweden, it has proved necessary to design a new wind tunnel force balance, which is a structure that measures forces affecting objects inside the wind tunnel. The reason being is that the current force balance sensor has some issues concerning accuracy of measurement and the lack of measuring other forces than lifting forces. A further development of the existing force balance would involve too long a work process, so it was decided to develop a new design of a wind tunnel force balance that solves some sources of error that the previous design of the force balance has and introduce an air resistance measurement component. By developing a new force balance that can be manufactured in Mid Sweden University's premises, the time for performing wind tunnel testing is reduced and the accuracy of the measured values is increased. The purpose of this project has been to develop a construction of a new force balance that can measure forces in the x- and y-axis, meaning lifting and air resistance. The force balance will be installed in the wind tunnel located in Mid Sweden University's laboratory. 

    In this project, the workflow of the design process is followed, which is divided into four phases. The first phase, the research phase, defined the product's requirements specification and functional analysis. The second phase, concept development and control art, began with brainstorming to generate concept solution ideas. The Pugh matrix was then used in the prototyping and validation phase to evaluate and select the concept based on a quantitative method. Then a three-dimensional model for the finalized concept was modelled using CAD. Finally, in the testing and refining phase, the design was produced using the CAD models. Then the complex components were printed with a 3D-printer while the less complex component were made of wood using a laser cutter to save on materials and costs, finally the rig was built and tested in Mid Sweden University's workshop. 

    The project resulted in a force balance that can measure both air resistance and lifting force in a low-speed wind tunnel with a more accurate measurements than the previous force balance. 

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  • 30.
    Alkuheli, Hiba
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Communication, Quality Management, and Information Systems (2023-).
    Forsaeus, Lisa
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Communication, Quality Management, and Information Systems (2023-).
    Är en stark kvalitetskultur nyckeln till kvalitetsutmärkelser?: En studie om kvalitetskultur i kommunal verksamhet2023Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The municipalities in Sweden are facing challenges that require the sector to be more effective. Improving the quality of operations is a possible, and seemingly the most attractive, way for municipalities to make themselves more efficient. Businesses with a strong quality culture have greater chances of achieving good quality and results. If links can be found between a strong quality culture and existing good results in municipalities, a quality culture should be of interest for other municipalities to achieve. The present study has therefore investigated whether the municipal management (managers and employees) in two municipalities with recognized high quality has a higher degree of perceived quality culture than two municipalities without quality awards. The purpose of the study has also been to investigate whether there are differences between managers' and employees' views on the organization's quality culture in the selected organizations.  

      

    The data collection method for this study was quantitative with qualitative elements and based on a positivist approach. Questionnaires with the possibility of open text answers were created and sent to four different municipalities, where a total of 70 respondents participated in the study. The respondents were managers and employees in the municipal management in the selected municipalities.   

      

    The results did not show that there is a consistently higher degree of perceived quality culture in municipalities that have received quality awards than in the two municipalities selected in the study that have not received quality awards. The results of the study did however show that there were consistent differences between managers' and employees' perceived quality culture in all the study's themes and in all selected municipalities.

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  • 31.
    Al-Sahli, Firas
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Ibrahimson, Maria
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Delaktighetens förutsättningar och begränsningar i förbättringsarbetet2016Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Participation is an important aspect when it comes to continuous improvements. Participation increases quality and creates support among employees and is a tool for achieving successful quality work. Companies need prerequisites for creating participation, and in successful companies this success is characterized by the creation of participation and motivation among employees. The aim of the study was to describe how production supervisors create opportunities for participation in improvement processes. The method used was a qualitative inductive approach from a life-world perspective. In-depth interviews were conducted with eight production supervisors and qualitative content analysis was used to examine texts to find sentence entetities and categories. Fishbone diagrams were created as a complement to the interviews. The results and the analysis indicated two categories, prerequisites and limitations to create participation in improvement work. This showed that there are difficulties when it comes to interpreting the term participation and even more difficult to specify the tools inuse. In the future it is of great importance to ensure that the research around the creation of participation is in focus.

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  • 32.
    Alsing, Anders
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Science, Design, and Sustainable Development (2023-).
    Kyllösning för kommersiell fastighet: Undersökning av olika alternativ för komfortkyla2023Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study’s purpose is to give suggestions of a new cooling system in a commercial building. The current system implies that the cooling come from tap cold water that flushes into a heat exchanger, this solution is both expensive and have a bad impact on the environment. The property owner isn’t satisfied with this and want to remake the system. There isn`t many measurement values that I can use to calculate the effect and energy needs for the building except the water consumption in the cooling system. Because of this uncertainty two cases have been used in this study. The first has an effect need of 80 kW and the other have an effect around 130 kW. From these two cases has an effect and energy profile been made from each of the two cases. With the profiles made, can a new solution be presented and in this study we have four different methods for the cooling system. An investigation has been made on district cooling, ground cooling, absorption cooling and compressor cooling. The district cooling isn`t possible today because it doesn’t exist but the local energy company having discussions about it and because of this, district cooling is a possible future solution. The study shows that to wait for a district cooling isn´t a profitable solution, neither is the solution with the absorption cooler, the absorption machine is being driven by district heat and the price is too high in Bollnäs. This study shows that ground cooling or compressor cooling are the best options in this case. The compressor cooling is the most profitable, but it has a downside in the environment perspective. All energy is based on electricity energy, and the refrigerant can affect the environment in a bad way if it´s a leak. But I should say that the cooling machine used in this study uses a refrigerant that has a relatively low GWP-value. 

     

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  • 33.
    Alzhairi, Husam
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
    Teknisk och ekonomisk analys av vätgassystem i hushåll: Storlek och kostnader för ett vätgassystem i fyra olika städer i Sverige2021Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of the work is to investigate whether energy storage in the form of hydrogen produced from solar cell can be suitable technology for detached houses located at four different regions of Sweden from a practical and economic perspective. The energy consumption and economic analysis was made in four cases: 

    1.  with waste heat recovery.

    2. without waste heat recovery.

    3. with an electric car and waste heat recovery.

    4.  with a fuel cell car and waste heat recovery.

     The results show that the hydrogen system is economically expensive due to low system efficiency caused by the mutilation of several unit efficiencies of electrolysis, fuel cell, hydrogen compression etc. for winter season. Nevertheless, household hydrogen system is technically possible. Such a system can be economically benefit if the energy consumption for house heating is covered from another heat source such as pellet burner and district heating. In Kiruna, a larger number of solar panels is required with an area that can be up to 400 m2 or even larger, whereas in Lund, only about 200 m2 is needed. As a result, the hydrogen system is unsuitable for cities that have low solar radiation or have a greater heat demand. In a technical and economic comparison, an electric car is currently a much better green choice for a house than for a hydrogen car. The hydrogen system is economically expensive due to low energy efficiency for the winter season but is technically feasible.

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  • 34.
    Amin, rebin
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Verktyg för kvalitetsutveckling2020Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Tools for Quality development are part of Total Quality Management TQM. These toolsets include the seven new management tools and the seven improvement tools. The tools help, among other things, to understand, explain and support decision-making, given that an important cornerstone of quality development is based on basing decisions on facts.This study is based on a systematized literature review and examines how the seven new management tools and the ishikawa diagram have been used and what subjects have been analyzed in different industries. This is in order to broaden the knowledge of these tools.This study helps to make it easier for organizations to relate to similar problems or challenges and thereby choose the appropriate tools for successful analysis.The results show and confirm the theory's descriptions of the tools' strengths but also a higher degree of flexibility in when it is applicable to use a certain type of tool. Most of the tools were used during the analysis phase and in combination with brainstorming. Among the industries, healthcare is frequently present where the tools are used for process improvements. Furthermore, the results show that the tools are alive and are used to a great extent in modern practice.

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  • 35.
    Amoev, David
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
    Simulering av en Kaplanturbins löphjulskammare: Undersökning och identifiering av områden inom konstruktionen som är särskilt utsatt för utmattningsbrott2020Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Företaget Uniper som är en elproducent och äger vattenkraftverk över hela Sverige har upptäckt nya sorter av skador i kammaren till en av av deras Kaplanturbiner. Skador förekommer i form av sprickbildningar i ett område som kallas för sugröret. Röret består av rostfritt stål och är omgivet av förankringsstag, armeringsjärn och betong. Företaget anlitade konsultbolaget Sweco som analyserade det utsatta området med FEM-beräkningar. Konsultbolagets slutsatser kring sprickbildningen var att de ansågs bero på en fel utförd svets eller dåliga förhållanden vid utförandet av tidigare reparationer. Sweco upptäckte även att konstruktionen vid stora tryckdifferenser, mer specifikt vid driftstopp, skapar utåtriktade momentana krafter mot betongen, vilket kan med stor sannolikhet orsaka utmattningsbrott. Utifrån de framtagna data om rörets beteende valde bolaget att förnya den kringgjutna betongen att samt svetsa ihop områdena som hade bildat sprickor för att minimera spridningen. Reparationen eliminerade inte  sprickbildningen då det fortsätter ännu idag att förekomma små sprickor i kammaren. 

     

    I detta projektarbete analyserades sugrörskonans beståndsdelar med andra metoder som tidigare inte har använts av företaget Sweco. Detta i syfte att få en helhetsbild av orsakerna till det som har skapat sprickor i kammaren. De genomförda simuleringarna i konan delades upp i fall A – F för att identifiera de mest utsatta områdena.

     

    Det framkom att svetsförbandet mellan sugrörskonan och nedre löphjulskammaren var de svagaste punkterna i konstruktionen. Utsatta området förstärktes med förstärkningsring runt röret som visade 45 % minskning av spänningsvärdet i jämförelse med tidigare fall som hade samma förutsättningar. Med en kompletterande detalj i sugröret som föreslås av detta projektarbete anses rörelsen minska vilket även minimerar risken till sprickbildningar.

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  • 36.
    Amoev, Edward
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
    Sagir, Ozan
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
    Konceptframtagning av ett verktyg för montage av spantring på pressvals2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta projekt utfördes på uppdrag av Valmet AB på dess anläggning belägen i Sundsvall. Valmet är ett företag som är ledande inom pappersmassaindustrin och utvecklar maskiner samt utrustning inom massa-, pappers- och energiindustrin. En av dessa maskiner är TwinRoll pressen som detta examensarbete handlar om.  En del av pappersmassaindustrin inkluderar rengöring av massa. För detta används stora maskiner som kontinuerligt pressar smutsig vätska ur massan med hjälp av pressvalsar. På valsarna sitter en detalj vilket är betitlad som mantelsektioner och består av flertal spantringar. I detta arbete undersöks dessa mantelsektioner och dess produktionsmetod åt företaget Valmet.  

     

    Arbetets syfte var att framta ett koncept för ett verktyg som ska kunna underlätta montering av spantringarna som sitter på pressvalsen. Med framtaget koncept kan de svetsade mantelsektioner som tillverkas, ersättas av enbart spantringar som direkt monteras på valsen, vilket innebär att de istället för påsvetsning krymps på konstruktionen. Genom detta krävs inget mellansteg vid montering och det sparas både tid och pengar.  

    Studiens mål har varit att generera ett koncept som förändrar dagens produktionsmetod genom att effektivisera den med en praktisk samt kostnadseffektiv lösning. 

    Resultatet av examensarbetet visar ett konceptuellt verktyg i form av ett hydrauliskt gripdon vilket uppfyller kraven som författarna har ställt sig inför. Studien presenterar även en vidare utveckling av verktyget som går att implementera i företaget.

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  • 37.
    Andersson, Anton
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Mathematics, and Science Education (2023-).
    Holmberg, William
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Mathematics, and Science Education (2023-).
    Viktminskning av kniv för bockning av plåt med additiv tillverkning i plast2023Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This work focuses on bending sheet metal using printed tools (punch). These tools aim to bend a number of 4 mm sheets without deforming and give a similar result as a steel tool would have done. The goal is to reduce the amount of material used in a bending tool. It would reduce weight and cost and improve the working environment for those working on changing tools. One wants to find advantages and disadvantages that may arise from using additive manufacturing in this environment.

    These are produced using data analyzes of materials and with a simulated load case. They are printed using a 3d printer and are tested by being pressed together in a machine called INSTRON that provides metrics to analyze. Several smaller prototypes are tested and a final prototype is printed in full-scale. These are presented and tested at the company Jonsson and Paulsson until a satisfactory tool is ready. The project succeeded in this and the tool met its goals and purposes.

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  • 38.
    Andersson, Birgitta
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Enberg, Terese
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Att utveckla en stark kvalitetskultur – korrelation mellan ledarskap, medarbetare och kund2020Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Developing quality work in organizations is a sterling job that requires leadership that can engage employees and create customer satisfaction. There are several different tools and models to use. The TQM model has been used as a base in the study. The purpose of this study has been to analyze the process work of Riksbyggen and contribute with knowledge of the success factors that exist for the development of a strong quality culture. The study has been conducted both as a qualitative and quantitative method with interviews and surveys. Documents such as results of customer satisfaction and organizational charts have also been analyzed. The result shows an organization with clear processes, a strong customer focus and a high cultural maturity. Committed leaders and employees were also distinguishable. There were also development areas within improvement work and participation that are reported in the action plan for the Riksbyggen to take part of.

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  • 39.
    Andersson, Frida
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Mathematics, and Science Education (2023-).
    Konceptutveckling av SkiErg-handtag: Ett utstakat konceptförslag i samarbete med Concept2 Sverige2023Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Concept2 is a leading supplier of fitness equipment, including rowing machines, ski machines and exercise bikes. Their products enable fitness training regardless of weather conditions. SkiErg is a ski ergometer used for cardio and strength training for arms, core, and legs. Users include cross-country skiers, general fitness enthusiasts, and CrossFit practitioners. SkiErg comes with a strapless handle that can be replaced with a ski handle. The main challenge is handle-replacement as the current assembly is classed as semi-permanent.

    The purpose of the project was to create an improved user experience of the Concept2 SkiErg handle and promote social sustainability by focusing on individual needs. The goal was to present a finished concept with one or more physical prototypes consisting of an adaptable handle with technical solutions for different types of users.

    The work follows a product development process that includes several steps, including market analysis to explore competitors and user needs, concept development, prototype development and user testing.

    The project resulted in two feasible concepts: SkiErg Grip Adapter and SkiErg ErgoGrip. The concepts were presented through physical prototypes and renderings.

    The project achieved its purpose by creating an enhanced user experience validated through user testing. The project provides valuable insights into the product development process and the challenges that may arise.

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  • 40.
    Andersson, Linnea
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Mentorskapets bidrag till Offensiv kvalitetsutveckling: -En kartläggning av effekter i Västra Götalands län 2020Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    The purpose was to investigate the extent of mentoring within companies and organizations in Västra Götaland County. The purpose was also to investigate the effect of mentoring by measuring results. Questions raised at work were whether there is a mentoring program or equivalent in the company / organization and which are covered? In what ways are mentoring conducted and increased employee satisfaction for those who apply it and if it is possible to distinguish patterns in different types of mentoring? If so, what effects do these have on employees? One issue was also how these patterns can be used to increase employee satisfaction.

    The work is based on a pragmatic world view with the research design explaining sequential mixed method and has an abductive approach.

    The survey was sent to 1234 companies and organizations in Västra Götaland County with 50 or more employees at the workplace. The response rate was approximately 7%. Of these, seven participated in an in-depth interview. It also emerged that there is conceptual confusion regarding the word mentoring, with this in mind the figures given are uncertain. More than a third of the respondents indicated that they had no mentoring due to lack of time. There are basically six different variants on which mentoring is conducted, formally where managers have a mentor, formally where everyone gets a mentor, informally where everyone has a mentor, informally where the managers have a mentor, a mix between formal / informal and finally the companies / organizations that call introduction / training for mentoring.

    The questions in the questionnaire and interview are based on the cornerstone model. However, given the lack of evidence, it is not possible to draw any generalizable conclusions. However, the author can note that the most obvious effects were participation, security, communication, getting into the organizational culture and keeping down staff turnover and sick leave. In addition to this, desirable effects would be to be able to make good recruits and get a committed management. In the survey, fairly similar results were found in the comparison between formal and informal mentoring. Based on these results, it is difficult to determine whether mentoring and, if so, what variant the company or organization should invest in. This is likely to depend on what the rest of the organization looks like and whether needs exist.

  • 41.
    Andersson, Mari
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
    Willner, Sara
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
    Förluster i solfångare Avsvalning av rörsystemet i solfångarfält2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 42.
    Andersson, Mikael
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
    Volymberäkning med temperaturgrund: Beräkning av volymändringen i ackumulatortanken med hänsyn till nätets volymändring utifrån temperatur2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This work has been carried out on behalf of Sundsvall Energi AB, with the purpose of establishing a link between Sundsvall Energi AB:s accumulator in Granloholm and the urban network with a temperature base, and using this connection to get a better understanding of their leakage.

    During the project, a literature study and a survey of the company's current system, was conducted to gain an understanding of the system and the mission. The lack of similar work forced me to look at leak detection methods that were relevant even though they did not handle the same area altogether. On the other hand, counselors and staff members assisted in obtaining the information requested and gave advice and tips on aspects of the assignment that had not been included in the report before.

    The model was developed piece by piece during the work period, when no other work was found that could provide a proper framework for the work. The model has proven to be more accurate than its predecessor but also more difficult to implement.

    The thesis has shown how different energy systems can be from each other and how different, the different methods that are available to look and solve problems in the system are. The use of existing meters and instruments is not always reliable or available, and assumptions and occurrences must sometimes be made to get an overview picture and a valid basis.

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  • 43.
    Andreasson, Eva
    et al.
    Folkuniversitetet.
    Solveig, Gyllenhammar
    Studieförbundet Vuxenskolan.
    Stenmark, Petter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Persson Slumpi, Thomas
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Computer and System Science.
    Ahlin, Karin
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Computer and System Science.
    Johansson, Karin
    Akrajol.
    Lilja, johan
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Hedlund, Christer
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    Blomqvist, Maja
    Region Jämtland Härjedalen.
    Nätterlund, Karolina
    Region Jämtland Härjedalen.
    Kokbok för förändringsledare: Metoder för att stötta engagerade människor att förverkliga idéer2020Book (Other (popular science, discussion, etc.))
    Abstract [sv]

    Det här är en kokbok för förändringsledare. Du kan använda denna bok om du ska leda utvecklingsaktiviteter och letar efter bra och beprövade metoder för att leda grupper och processer. Vi beskriver metoderna som vi har använt inom vårt projekt SMICE, i  vilket sammanhang metoderna använts och när de olika metoderna fungerat bra. Vår förhoppning med att nedteckna dessa metoder är att du ska inspireras och vågar  prova något nytt för att skapa nytta. Vi tror att ett detaljerat sätt att dokumentera metoderna gör dem mer användbara för dig men också för oss själva. Metoderna är graderade efter vilket behov av förkunskap och förberedelser du behöver, från det enklaste, där du kan öppna kokboken och använda metoden på en gång, till metoder som kräver utbildning eller specialistkompetens innan du sätter igång. Boken är indelad i fyra huvuddelar; Starta, Forma, Utveckla och förankra och Bygga vidare. Till dessa delar har vi identifierat metodstöd som kan användas vid en rad olika tillfällen; vid idégenerering, vid idéutveckling, vid affärsutveckling, för att inspirera, för att skapa samsyn och samverkan och för att mobilisera större grupper av människor och organisationer. Något för alla, alltså. Avslutningsvis finner du tips och stöd för att driva dessa utvecklingsprocesser på distans med digitala verktyg i digitala möten. Ska vi sammanfatta någon lärdom av detta arbete så blir det våra nycklar som presenteras på nästa sida. Du kan se dessa nycklar som våra bästa råd för att du ska lyckas med ditt  arbete med att leda processer och att ordna möten. Lycka till!

    Metoderna har testats och utvecklats inom SMICE - Samskapande Mittnordisk Innovationsarena för Cirkulär Ekonomi, ett projekt inom Interreg som pågått  2017-2020. 

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  • 44.
    André, Hampus
    et al.
    KTH.
    Nilsson, Louisa
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Mathematics, and Science Education (2023-).
    Are second-hand shell jackets better than users think? A comparison of perceived, assessed and measured functionality throughout lifespans2024In: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 204, article id 107470Article in journal (Refereed)
    Abstract [en]

    Using the case of outdoor shell jackets, this research studies obsolescence and potential lifespan extension by re-examining how product functionality, objectively and subjectively, develops over the course of product lifespans. In particular, the study focuses on second-hand stores for outdoor products. Functionality is indicated by user perceptions, visual assessments, laboratory measurements and price data, collected at first use, second-hand resale and end-of-life. Perceived functionality and price decline more rapidly (5–6 % per year) than assessed and measured functionality (around 3 % per year). This could be explained by properties related to appearance, which are not assessed nor measured but influence user perceptions and price. Discontentment regarding such properties appears more relevant for obsolescence than inadequate performance, suggesting the potential for design for attachment and timeless design. The relative stability of measured functionality over time suggests that a barrier for second-hand sales, concern about performance, could be ameliorated by a potential functionality-label.

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  • 45.
    Angerbjörn, eran1804
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
    En undersökning om användandet av additiv tillverkning inom motorsport2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Utvecklingen av produkter inom motorsporten är viktig ur flera aspekter. Dels för att miljöaspekten kring motorsport är mer aktuell än någonsin och för att ny teknologi gör det möjligt att optimera fordonen mer. Den här rapporten handlar om att optimera ett insug till en specifik förbränningsmotor, Volvos motor B234 16v. Insuget modelleras i programmet SolidWorks, där en CAD-fil tas fram. Från denna CAD-modell ska insuget sedan konstrueras genom additiv tillverkning. Uppgiften var att optimera gasflödet och producera en produkt som är lättare än originalprodukten, i ett polymermaterial som klarar de temperatur och lösningsmedelskrav som ett insug till en förbränningsmotor kräver. Reverse engineering användes för att matcha de båda flänsarna på varsin sida om insuget mot motor och spjällhus. Ett antal olika versioner av insug modellerades och testades för optimalt gasflöde. Från detta valdes den bäst flödande versionen ut. En polymer, PA12 (polyamide) Nylon glasfilled, presenterades som det bäst tänkbara materialet för den additiva tillverkningen av insuget. Genom att använda det presenterade materialet kunde en viktminskning på 37% uppnås. Det färdiga insuget skall sedan testas i motorbänk av uppdragsgivaren för att jämföras med ett insug som modifierats efter Trendabs ursprungliga process. Efter arbetet kunde det konstateras att processen som använts i arbetet inte bara är sparar pengar åt uppdragsgivaren, men även sparar tid i form av arbete som kan lejas bort istället för att göras in-house. Det framgick även att reverse engineering kunde göras med goda resultat utan att använda avancerad skannerteknik. Istället kan konstruktören utgå ifrån den del som skall modifieras för att använda mått och bilder för skapandet av CAD-modellen 

     

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  • 46.
    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.

     

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  • 47.
    Anundi, Elina
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Kundlojalitet i mindre B2B företag2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Är nöjda kunder automatisk lojala kunder? Det krävs mer än bara en positiv upplevelse av servicekvalitet för att nå hög lojalitet bland sina kunder. Trots att kunderna upplever servicen lika, kan deras bedömning av tillfredsställelse variera p.g.a. olika förväntningar och prioriteringar. Upplevd servicekvalitet och tillfredsställelse är de första faktorer som påverkar lojalitet. Men det krävs också förtroende för såväl företaget som också på individnivån till företagets representanter, innan kunderna vågar binda sig till en relation med en leverantör. Allt detta påverkar relationen, som med tiden kan utvecklas och fördjupas. Det är alltså servicekvalitet, tillfredsställelse, förtroende samt beredskap att binda sig till en relation och relationskvalitet som påverkar lojalitet i olika utsträckning inom olika branscher.

    Den empiriska undersökningen som genomfördes i form av en webbenkät bland kunder hos ett mindre Business-to-Business (B2B) företag visar att segmentering baserad på lojalitet är ett effektivt sätt att skapa förståelse för hur lojala och icke-lojala kunder ser på företaget och deras servicekvalitet. Segmentering baserar på några extra frågor som mäter lojalitet. Trots låg antal svar (17 svar) är resultat enhetlig för varje segment och visar därmed vilka brister som bör åtgärdas.  

  • 48.
    Arvidsson, Totte
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Det kommunala ledarskapet i det förebyggande krisberedskapsarbetet- En kris eller en möjlighet?: Kvalitativ studie- med utgångspunkt i offensiv kvalitetsutveckling2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study, with it ́s base in Total Quality Managment, was to contribute with knowledge about the minuicipal leadership and the proactive crisismanagment. The method that has been used has been hermenetuic, inductive and qulitative method. A multiple casestudy has been made through three interviews with crisis coordinators in the municipal sector. The questions in the study have been semistructurated. The questionnaire was made with the influence of Appreciative Inquiry. The conclusion was that the municipal leadership have strengths and opportunities to development in the proactive crisimanagment. There was strengths and opportunities in all six principels in Total Quality Management. These strenghts and opportunities in the municipal leadership could contribute to a positive developmen of the crisismanagment and create a safer community. Exampels of perceived strenghts was municipal leaders that alowed participation in risk- and vulnerabillity assessments and educations. Exampels of development areas of municipal leaders was that leaders schould contribute to openness, responsiveness, participation and discussions regarding crisis management.

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    Det kommunala ledarskapet i det förebyggande krisberedskapsarbetet- En kris eller en möjlighet?: Kvalitativ studie- med utgångspunkt i offensiv kvalitetsutveckling
  • 49.
    Arzoumalian, Natali Ani
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Communication, Quality Management, and Information Systems (2023-).
    Zeljic, Milja
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Communication, Quality Management, and Information Systems (2023-).
    Huvudtitel:Att leda ständiga förbättringar i det hybrida arbetssättet: En studie om hur ledare på distans främjar medarbetarengagemang i förbättringsarbetet2023Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Organizations cannot avoid the fact that they live in a world with increased global competition where they risk their survival if they do not focus on working with continuous improvements. The shift to the hybrid workplace that has become increasingly popular has brought both big and small changes for not only leaders but also employees in organisations. One of the prerequisites for successful improvement work is that leaders with their commitment succeed in getting employees to participate. The main focus for this study has been to deepen the knowledge around leading the work with continuous improvements in the hybrid workplace. To achieve the purpose of the study, the authors chose a qualitative approach that was obtained with semi-structured interviews of leaders and with a qualitative survey that the employees in the organisation got to answer. The results showed that the organisation values an open communication climate, clear but also committed leaders because their employees need to be noticed and seen. The result also shows that most of the leaders and employees within the organisation lack clarity regarding their strategic quality development work.

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  • 50.
    Astner, Måns
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
    Granskning av snabb pyrolys och hydropy- rolys för produktion av bioolja från trärester: Fyra undersökta tillverkningsmetoder med en teknisk och ekonomisk jämförelse2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Världens klimat- och miljöproblem är ett av dagens stora utmaningar samtidigt som alla resurser ska räcka till ett drägligt liv för en växande befolkning. För att klara dessa utmaningar bör bland annat världens energisystem övergå till 100% förnybart, vilket innebär att tillförseln av fossil energi måste fasas ut och ersät- tas. Fossila bränslen är en ändlig resurs jämfört med biobränslen som kan agera substitut för att öka energitillförseln och minska miljöpåverkan. Denna rapport bygger på att utvärdera fyra företag som levererar teknik för att omvandla bio- massa till biokol, bioolja samt biogas genom en pyrolysprocess. Utvärderingen skall resultera i ett beslutsunderlag för en uppdragsgivare som vill producera bioolja från restprodukter i ett sågverk där val av leverantör främst ska utgå ifrån hur mycket bioolja som kan produceras samt med så hög kvalitet som möjligt. De fyra företagen som undersöks är Steeper Energy och Licella som levererar hydrpyrolysteknik samt BTG-BTL och Biogreen som levererar teknik för snabb pyrolys. Rapporten innehåller även en ekonomisk jämförelse mellan de två teknikerna snabb pyrolys och hydropyrolys. Undersökningen har visat att hydropyrolys ger den bästa slutprodukten men att snabb pyrolys är den mest ekonomiskt lönsamma. Steeper Energy anses vara den bästa kandidaten för än- damålet när det kommer till kvalité och kvantitet av produkt samt energieffekti- vitet.

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