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  • Public defence: 2019-09-13 10:00 E1405
    Kallin, Sara
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Rehabilitation.
    Deformation of human soft tissues: Experimental and numerical aspects2019Licentiate thesis, monograph (Other academic)
  • Tabbah, Alyaá
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Abed El-Mawla, Sawsan
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Översiktsplanering för minskad boendesegregation: En jämförelse mellan Nässjö, Ronneby och Vellinge Kommun2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Segregation has become an important issue for the municipalities in Swedenin the recent years. The uneven distribution of people depends mainly on social andeconomic reasons, which creates the so-called housing segregation. With a view tosustainable development, the municipalities are constantly trying to promote integrationthrough various initiatives, then physical planning is one of the tools used. This is doneat different levels and overview planning here is of interest as it covers the entiremunicipality's area and shows how different areas should be developed. How themunicipalities try to control the overview planning to counter segregation is thequestion that the study is about. Furthermore, the aim of this study is to analyse whetherthe overview plan is a good tool for achieving a multicultural society.

    Method: The study is conducted as a comparative case study between Ronneby, Nässjöand Vellinge municipality. The statistics for all three municipalities were collected andpresented in the form of a table. By focusing more on Nässjö municipality morestatistics were presented for the urban area Nässjö and the area Runneryd. A semistructuredinterview with the community planning office in Nässjö municipality wasalso conducted. The overview plans for all three municipalities were analysed based onthe socio-economic class.

    Findings: Planning department in a municipality places overview plans for themunicipality and there one can emphasize integration as a goal within long-termsustainability vision, through e.g. to mix accommodation and activities. However, thepossibilities for the municipality are limited to steering towards this goal as it does nothave all the tools to achieve the goal. In addition, there are other stakeholders who canalso influence the situation, but they may not prioritize integration into its efforts. Tocounter segregation, it turns out that one needs to handle different aspects, physical andnon-physical. The first is the part that can be controlled by physical planning. However,this can counteract housing segregation. The other, that is, the non-physical aspect, ismore difficult to handle and needs constant work with, for instance, socialorganizations.

    Implications: Mixed-income housing and mixed urban function is a good solution tohousing segregation, but the overview plan itself has problems because of itsdependence on private stakeholders, therefore cooperation of all participating parties inthe municipality is required.

    Limitations: In this paper, national planning, regional planning and detailed planningare delimited, but only planning at a general level is examined. We mainly study smallmunicipalities and do not treat the big cities. The study is limited to housing segregationwithin the socio-economic perspective and does not concern other aspects. The role ofpolitics is not presented in this paper either.

  • Johansson, Hanna
    et al.
    Jönköping University, School of Education and Communication.
    Olausson, Cecilia
    Jönköping University, School of Education and Communication.
    "Alla vet att det är bra att röra på sig": -En kvalitativ studie om förskollärares berättelser kring hur förskolegården används för att främja fysisk aktivitet.2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • Vaniushkina, Alisa
    et al.
    Jönköping University, School of Education and Communication.
    Abdi, Sara
    Jönköping University, School of Education and Communication.
    Engelsk grammatik - lek och verklighet: En litteraturstudie med fokus på grammatik i undervisning och inlärning för årskurs 4–62019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Throughout history the human ability of learning language has spawned numerous theories on which methods are most efficient in both teaching and learning language. Ever since English has earned its title of lingua franca, educators from around the world have been tasked with teaching students in a manner that is the most beneficial for learning the language. In retrospect, knowledge of two or more languages is seldom a free choice, but a necessity for adapting to a globalized society. As different methods and theories have gone in and out of fashion, the most controversial topic remains – what is the purpose of teaching grammar?

    The purpose of this study is to analyse and compile research that deals with the way grammar is implemented, if at all, into teaching English as second language. Questions that the result should answer are the following:

    • Based on what the research claims about what is most conducive to learning English, how do teachers choose to construct their teaching?

    • Where lies the focus in teaching, on form or function?

    How grammar is taught, if at all, is a heavily debated subject among researchers and educators alike. Among the range of different opinions, both that are based in actual research and personal views on the topic, most parties seem to come to a consensus: grammar is important but without communication there can be no authentic learning.

    Method of this study is based on international research that has been reviewed and analyzed according to the criteria for inclusion. The findings of this study report the different approaches to teaching English with implementation of grammar in a way that promotes efficient learning. There are also examples of simultaneously teaching English by using different approaches to grammar and which results that provides

  • Hong, Emelie
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. 1995.
    Developing Action Plan for Inventory Management: A case study within Small Medium Enterprise2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • Fredriksson, Olivia
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Persson, Olle
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Påverkan av kommunikation och effektivitet i byggproduktion med hjälp av Dalux Field2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: By improving the communication and the efficiency in construction site production large savings may emerge. The main intentions with this thesis are therefore to examine whether how Dalux Field affects the production phase in construction by answering (1) How the use of Dalux Field affects the communication in the production on a construction site? and (2) How the use of Dalux Field affects the efficiency in the production on a construction site?

    Method: The work includes a literature study and a case study with interviews on NCC:s construction site D1 Ryhov in Jönköping. Four foremen have been interviewed whereof two use the software and two did not. Beyond these, three leading installers who actively use the software have been interviewed. The literature study was used to either confirm or contradict the collected data.

    Findings: Dalux Field reduces the communication on a construction site since the foreman and the leading installer have access to the model on site. In the event of a collision, decisions can be made instantly because the surrounding installations are visible in the model. This increases the efficiency, since smaller stops occur in production. Since a building’s various objects consists of a great deal of information Dalux Field is advantageously used as a supplement since all this information cannot be reported on a 2D drawing. Furthermore, the respondents consider that Dalux Field is also advantageously used as a visual supplement to give a complete picture of the end product.

    Implications: When answering the questions at hand, the conclusions were that the use of Dalux Field makes the communication more effective, which in turn makes the production phase in construction more efficient. In order to further improve the tool, features such as the measuring tool and height recommended to be reviewed. If Dalux Field is to be utilized to its full potential, it is also required that all parties in the construction phase have access to and use the program.

    Limitations: On the reference project an internal platform for communication is used primarily. The validity of the result would be strengthened if Dalux Field was the primary communication tool. Since NCC is a big company in the sector with a big number of projects, resources and assets, a generalization with the whole sector is not possible. The result can be generalized with equal building companies with similar projects, resources and assets.

    Keywords: Building Information Modeling, Communication tool, Construction production, information transfer, collision, efficiency, communication, Dalux Field.

  • Stacke, Carl
    Staten eller kapitalet: Historiebruk i svenska ledarsidors rapportering om finanskrisen 20082019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • Telbrant, Rebecka
    et al.
    Jönköping University, School of Education and Communication. 1995.
    Watson, Sophia
    Jönköping University, School of Education and Communication.
    Fyra organisationers jämställdhetsarbete: En kvalitativ intervjustudie om upplevd rättvisa inom IT-branschen2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • Artman, Josefine
    et al.
    Jönköping University.
    Rentorp, Evelina
    Jönköping University.
    Vilka attityder har nästa generations arbetskraft till etnisk mångfald?: En kvalitativ studie av högskolestudenter2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med studien var att undersöka vilka attityder högskolestudenter har till etnisk mångfald. Studien var kvalitativ och underlaget utgjordes av semistrukturerade intervjuer. Ett bekvämlighetsurval tillämpades och totalt deltog 17 respondenter (n=17). Det insamlade materialet analyserades genom en tematisk analys som resulterade i tre huvudteman: rädsla, samhörighet och den etniska mångfaldens inverkan för organisationer. Studiens resultat visade att samtliga respondenter hade en positiv attityd till etnisk mångfald. Samtliga respondenter ansåg att mångfald bör främjas inom svenska organisationer för att organisationerna ska kunna bli innovationsrika, konkurrenskraftiga och tillfredsställa en bredare marknad samt tillvarata den kompetens som mångfalden innebär.

  • Söderberg Eriksson, Robert
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Ströberg, Hampus
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Slöseri med arbetstimmar inom svensk bostadsproduktion sett från en storskalig byggnadsentreprenör2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Time and resources are wasted away when efficiency within construction is stagnating. Despite being a generally developed industry, there is still light to shed upon the methods and implementation of norms and routines, resulting in unnecessary waste at the work sites. This report aimed to provide with further data in order to argue for a work place with reduced waste and a greater awareness around how a complex work site can be studied with the help of Muda theory.

    Method: A qualitative study with semi-structured interviews and a literature study as data collection methods. A total of nine interviews were accomplished with two foremen and seven carpenters. Foundation and understanding of the phenomenon were initially sought through literature. This to have an adapted form of interviews through the use of a custom template for the respondent and also to give the analysis theoretical foundation.

    Findings: The report shows three types of waste that come back more frequently, these are defects (rework), movement and waiting. To prevent waste, and primarily to discover it, the organization must make the clarity for Lean and Muda clearer for all employees. The project phase needs to prioritize where planning awareness about the schedule and building only after construction documents are essential. Furthermore, there is a great potential to improve the knowledge transfer between the projects where major entrepreneurs can benefit from their number of previous projects to systematically evaluate and improve their workplace. Here, a digital platform is proposed for this purpose.

    Implications: Compiling the analysis established that there are deficiencies within the work with Lean in production. Wastage that occur is caused by many different reasons and are often based upon inadequate planning within the organization. There are also external factors like delays and inefficiency to account for, although it is usually up to the contractor to optimize and adapt best way possible based on the current circumstances. A great emphasis has through this analysis been put on the work with planning with the help of The Last Planner System. It has also been concluded that a working system of knowledge transfer within an organization needs to be established in order to be a leading participant in Swedish building production.

    Limitations: This report has been angled so that the problem within production is illuminated. This since much of the wastage can be reflected to the design stage and future work can resume with such an angle. The validity of the report is lowered as a result of only screening one company although the report is limited to one Swedish, bigger contractor. In order to further confirm the reality of the problem, other forms of research could have been added, more than just literature studies and interviews, such as observational investigation.

    Keywords: Waste minimization, Lean Construction, Muda, Lean Production, The Last Planner System, Knowledge transfer

  • Kläboe, Niklas
    et al.
    Jönköping University, School of Engineering.
    Schreiber, Natalie
    Jönköping University, School of Engineering.
    Virtual Reality som visualiseringsverktyg för ljusdesign2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of the study was to investigate Virtual Reality as a visualization tool for communicating light and lighting design in projects. In the study, we sought to answer whether there are differences in light and spatial experience between a VR model and a physical environment. The VR model was created on the basis of visual evaluations of a physical environment and was therefore not based on light technical parameters (illuminance, luminance etc.). The data was collected by conducting an experiment where 35 subjects were put in two groups, an experiment group (n=30) and a control group (n=5). The subjects gave numerical input through a leader-led questionnaire about their experience of light and spatial dimensions in the VR model and the physical environment. The results showed that there was no significant statistical difference between how the experiment group experienced the light in the VR model compared to the physical environment. The experiment group also considered that the spatial dimensions in the two environments were equal except for a minor deviation concerning how high/low they experienced the room. In the results, a difference can be seen in how test subject with and without knowledge of light evaluated the environments which suggests that there may be a deficiency in how design is communicated between people with knowledge of light and people without knowledge of light. Following these findings, the presenting method of visualizing light in VR seems very promising and should be seen as a basis for further practical use of the tool.

  • Walldoff, Joakim
    Jönköping University, Jönköping International Business School, JIBS, Economics.
    Diversification benefits for Swedish investors: A comparison of benefits from before and after the financial crisis 2007/2008 2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: Investing internationally is easier than ever before, with the rise of the internet, unification of accounting standards, and faster flow of information. Yet, many argue that due to increasing global equity market correlations, it is getting increasingly hard to attain benefits from international diversification. Therefore, it is important to know if there are any benefits attainable from international diversification for Swedish investors.

    Purpose: The purpose of this thesis is to investigate if there are any benefits achievable from international diversification for Swedish investors, if those benefits have changed from before and after the financial crisis in 2007/2008, as well as where Swedish investors might attain the greatest benefits from diversification; namely in developed- or emerging markets.

    Method: Correlations are measured over the time periods before and after the financial crisis, using both a 61-month correlation window (the entire periods) as well as a 12-month rolling correlation window.  To test diversification benefits, different portfolios are created using the Markowitz Portfolio Optimizer, such as a Maximum Sharpe portfolio and an Equal Weighted portfolio.

    Conclusion: Correlations have increased from before and after the financial crisis, both for developed- and emerging markets. Diversification benefits exist for Swedish investors, but they have decreased from before and after the financial crisis, and they appear slightly greater in emerging markets than in developed markets.

  • Johansson, Hedda
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Implementering av värdeflödesanalys inom processindustrin: En nulägeskartläggning av en produktfamiljs flöde i syfte att effektivisera flödet genom eliminering av icke-värdeskapande aktiviteter samt slöserier2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of the study is to investigate how value stream mapping can be used to achieve a more efficient flow for a product family in the process industry. In order to achieve the purpose, three research questions have been formulated:

    1. How can a current flow be mapped in the process industry through value stream mapping?

    2. What types of non-value-added activities and waste can be identified through value stream mapping?

    3. How can a desired future flow be developed in the process industry through value stream mapping and what Lean tools can be used for improvement to achieve the desired flow?

    Method – To answer the research questions developed, a qualitative study with an inductive approach has been executed. Firstly, a pilot study was conducted to create a broader picture of the subject and the problem area. A literature review was then carried out with the aim of identifying previous knowledge and research within the field. Thereafter, empirical data was gathered through a case study including the methods of interviews, observations and documentary studies. Lastly, the theory and data collected for the purpose of the study have been analyzed through pattern matching and generated in the following results.

    Findings – The study conducted indicates that value stream mapping can be used within the process industry to achieve a more efficient flow for a product family. The research conducted shows that value stream mapping in the process industry distinguished from the discrete industry. The value stream mapping developed within the study enabled the identifying of non- value-added activities and waste in the flow of the product family. Through the identified deficiencies a desired future flow has been developed with decreased deficiencies. The desired future flow has contributed to improved suggestions of what Lean tools to be used to decrease deficiencies. The value stream mapping developed in the study shows that a product family’s lead time can be reduced which decreases the customer delivery time.

    Implications – Previous research shows that the method of value stream mapping is a universally phenomenon within the process industry, albeit future research is recommended to strengthen the implementation of the method. The results of the study indicate how the implementation of value stream mapping can be applied and through valuable result strengthen the theory of employing value stream mapping within the process industry. The value stream mapping analysis conducted in the study can work as an underlying foundation for other organizations when optimizing a product flow. Organizations within the process industry can apply the presented Lean tools when identifying similar non-value-added activities and waste.

    Limitations – The value mapping analysis has been adopted to the circumstances of the case study company. The results of the research can therefore be biased which restricts the generalizing towards companies with similar prerequisites. Another limitation with the study includes the simple case study of one unit of analysis, which could have been viewed from a broader perspective if more cases and units of analysis would have been implemented. This would have contributed to more generalized results.

  • Westphal, Florian
    et al.
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Grahn, Håkan
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Lavesson, Niklas
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics, JTH, Jönköping AI Lab (JAIL). Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    User Feedback and Uncertainty in User Guided Binarization2018In: International Conference on Data Mining Workshops / [ed] H. Tong, Z. Li, F. Zhu, & J. Yu, IEEE Computer Society, 2018, p. 403-410, article id 8637367Conference paper (Refereed)
    Abstract [en]

    In a child’s development, the child’s inherent ability to construct knowledge from new information is as important as explicit instructional guidance. Similarly, mechanisms to produce suitable learning representations, which can be trans- ferred and allow integration of new information are important for artificial learning systems. However, equally important are modes of instructional guidance, which allow the system to learn efficiently. Thus, the challenge for efficient learning is to identify suitable guidance strategies together with suitable learning mechanisms.

    In this paper, we propose guided machine learning as source for suitable guidance strategies, we distinguish be- tween sample selection based and privileged information based strategies and evaluate three sample selection based strategies on a simple transfer learning task. The evaluated strategies are random sample selection, i.e., supervised learning, user based sample selection based on readability, and user based sample selection based on readability and uncertainty. We show that sampling based on readability and uncertainty tends to produce better learning results than the other two strategies. Furthermore, we evaluate the use of the learner’s uncertainty for self directed learning and find that effects similar to the Dunning-Kruger effect prevent this use case. The learning task in this study is document image binarization, i.e., the separation of text foreground from page background and the source domain of the transfer are texts written on paper in Latin characters, while the target domain are texts written on palm leaves in Balinese script.

  • García Martín, Eva
    et al.
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Lavesson, Niklas
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics, JTH, Jönköping AI Lab (JAIL). Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Grahn, Håkan
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Casalicchio, Emiliano
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Boeva, Veselka
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    How to Measure Energy Consumption in Machine Learning Algorithms2019In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): ECMLPKDD 2018: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases Workshops. Lecture Notes in Computer Science. Springer, Cham, 2019, p. 243-255Conference paper (Refereed)
    Abstract [en]

    Machine learning algorithms are responsible for a significant amount of computations. These computations are increasing with the advancements in different machine learning fields. For example, fields such as deep learning require algorithms to run during weeks consuming vast amounts of energy. While there is a trend in optimizing machine learning algorithms for performance and energy consumption, still there is little knowledge on how to estimate an algorithm’s energy consumption. Currently, a straightforward cross-platform approach to estimate energy consumption for different types of algorithms does not exist. For that reason, well-known researchers in computer architecture have published extensive works on approaches to estimate the energy consumption. This study presents a survey of methods to estimate energy consumption, and maps them to specific machine learning scenarios. Finally, we illustrate our mapping suggestions with a case study, where we measure energy consumption in a big data stream mining scenario. Our ultimate goal is to bridge the current gap that exists to estimate energy consumption in machine learning scenarios.

  • börjesson, Mary
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Stål, Gustav
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Den digitala mathandeln: Hur implementering av multikanalsförsäljning påverkar matbutiker2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • Löfblad, Simone
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Bringevall, Madeleine
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Det transformativa ledarskapet, en självklarhet! Eller?: En kvalitativ intervjustudie med fokus på ledares inverkan på den psykosociala arbetsmiljön2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Purpose – The purpose with the study is “To investigate the relationship between leadership and good psychosocial work environment with employees”. To answer the purpose with the study, the purpose has been broken down to three questions as below.

    1. What do leaders in companies with good psychosocial work environment see as a good leadership and less good leadership?

    2. What does the leader of a company with a good psychosocial work environment do to make the individual motivated in their work?

    3. How is leadership characterized by the different companies with good psychosocial work environment?

    Method – The study is a qualitative interview study with an inductive approach where theory and empirical data are collected and compared analytically during the process. The theory was collected using literature studies. The collected data was compiled from five different interviews with five different leaders from selected companies. The interviews were transcribed, and a coding process was performed to select the most relevant parts for the analysis.

    Findings – The perception was that several of the leaders had developed in their role and seemed to have gone from a transactional leadership to a transformative, since the transformative is often based on the transactional.

    What can be explained after the analysis is that motivation factors such as encouragement/ attention, relationship with manager and colleagues are required, as well as personal development at the forefront of having a good psychosocial work environment, but in order to be able to focus on the motivational factors, the hygiene factors are actually an important part to be able to achieve this spirit.

    The transformative leadership was described by all companies, some by that sense, others by similar but the description was the same. The focus is on the employee's needs and the leadership is based on that.

    The conclusion drawn in this study is that the transformative leadership may seem like the obvious leadership, but the fact is that it does not always fit in all situations. Situational leadership lasts the longest and gives individuals the opportunity to be motivated and developed according to their needs. Hence, flexible leadership is what should be pursued.

    Implications – Practical contribution from the study is how flexible leadership best develops motivation among employees. Despite various backgrounds, a common image of good leadership can be achieved with different ways to do so. The theoretical contribution is that the study has found a relationship between transactional, transformational and situational leadership, where the transformative is what should be used broadly in a leadership.

    Limitations – The study is limited to companies with more than 600 employees, and only manufacturing companies. No employees have been interviewed in the study, which limits the study to the leaders' perspective.

    Keywords – Transactional Leadership, Transformational Leadership, Psychosocial Work Environment, Situational Leadership, Motivation, Job Satisfaction

  • Patriksson, Ola
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Piscoran, Alin
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Analys av intern förädlingskedja: En flödesstudie i processindustrin2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Utgångspunkten i examensarbetet är flödesmässiga förbättringar. Vid kontakt med fallföretaget presenterades en för företaget viktig produkt. Värdeflödeskedjan för denna produkt går genom flera värdeadderande processer, samt flera icke värdeadderande aktiviteter, vilka företaget önskar kartlägga. Dessa aktiviteter utgörs både av icke värdeskapande, men nödvändiga, aktiviteter, likväl som rena slöserier. Därmed är studiens syfte:

    Att kartlägga det interna flöde produkten följer, i syfte att identifiera och minimera icke värdeskapande aktiviteter, för att slutligen utifrån teorin utforma förslag på flödesmässig effektivisering och förbättring

    För att besvara syftet har två frågeställningar formulerats:

    ”Hur ser värdeflödet för aktuell produkt ut i nuläget, samt vilka slöserier kan identifieras?” samt, baserat på den första:

    ”Vilka aktiviteter kan uteslutas utan att kundens förväntningar påverkas negativt samt vilka förslag kan ges utifrån teorin för att effektivisera och förbättra flödet?”

    Frågeställningarna har besvarats genom analys av empiriskt material insamlat genom dokumentstudier, intervjuer samt observationer.

    Studiens resultat går i linje med de centrala teorierna inom konceptet Lean, vilket anammats och praktiseras av verksamheter av vitt skilda karaktärer. Utifrån den genomförda värdeflödesanalysen för aktuell produkt identifierades slöserier i det logistiska flödet, vilka analyseras och avhandlas. Utifrån den genomförda värdeflödesanalysen har förslag på önskat framtida läge formulerats och illustrerats med grund i befintlig processgruppering och - indelning, i vilken slöserierna minimerats.

    Utifrån studiens empiriska material och resultat skönjas ett utbildningsbehov i organisationen. Genom att öka den teoretiska och praktiska förståelsen för centrala delar, begrepp och verktyg inom konceptet Lean kan förbättringar inom företagets internlogistik uppnås, och i förlängningen, enligt teorin, för hela företaget.

    Arbetets flödesövergripande perspektiv medför vissa begränsningar. De ingående värdeadderande processerna har inte analyserats djupare än till deras flödesmässiga påverkan i form av takt och cykeltid, då detta är av processteknisk karaktär.

  • Gondhalekar, Akash Avinash
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Design and Development of Light Weight High Entropy Alloys2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The main aim of this thesis was to design and develop new Aluminium based compositionally complex alloys (CCAs) using the high entropy alloy (HEA) concept, and to understand their evolution of microstructures during casting and also after the secondary process which is heat-treatment, and finally to evaluate their subsequent mechanical properties. Prior to the development of alloys, a computational technique ThermoCalc was used which helped in understanding the phase formation in various results. Use of thermodynamic physical parameters for predicting the stability of single-phase fields was done to assess their validity in predicting the compositional regions of the alloys developed.

    The first alloy developed is Al73.6Mg18Ni1.5Ti1.9Zr1Zn4 in at% (NiTiZrZn) CCA. The microstructure consists of the FCC as a primary phase with ~49% volume fraction along with β-AlMg and intermetallic (IM) phases including Al3Ni, Al3Ti, and Al3Zr. After casting, the microstructure showed some presence of eutectic structures. The Al3Ti, and Al3Zr IM phases seemed to precipitate early which led to less homogenization of Ti and Zr, causing deviation in the amount of these elements in the matrix. Further, the CCA was heat-treated at 375 oC for 24hrs and 48hrs and the evolution of microstructure along with its hardness and phase transformation characterisation was investigated.

    The second developed alloy was quaternary Al65.65Mg21.39Ag10.02Ni2.94 in at% (AgNi) CCA. In the as-cast state, the main phase (matrix) was FCC with ~64 % volume fraction along with BCC, β-AlMg and Al3Ni IM phases. There was a good level homogenization of all elements in the alloy. They were further heat- treated at 400 oC for 24 hrs and 48 hrs and were studied for any change in microstructure along with its hardness and thermal stability. This CCA had the highest hardness value from all developed CCAs.

    Lastly, in order to check how Ni affects the microstructure and properties of (AgNi) CCA, a ternary Al67.2Mg22.09Ag10.7 in at% (Ag) CCA was developed. The composition was kept such that it is exactly 97% by excluding the Ni. During the development of this alloy, the cast was cooled in two ways first being the normal cooled just like other CCAs and second being a fast cooling method. Both of these alloys consists of the FCC phase as a primary phase with 72% volume fraction along with BCC and β-AlMg. Both of them were also heat treated at 400 oC for 24 hrs and 48 hrs to evaluate any changes in microstructure and also to assess its hardness and thermal stability.

  • Svensson, Simon
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Wadsten, Adam
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Kriterier för automation vid inlagring: Ett beslutsunderlag i valet av artikelplacering2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The role of warehouse in the value stream, plays a significant part in how well a company can satisfy the requirements of a customer. To be able to support the demand of the customers, production companies are forced to produce a bigger variety of models in the product range, which results in an increasing assortment. With an effective stock keeping, there is a potential to reduce waste and increase profitability. In the choice of warehouse-design, warehouse-operations have the opportunity of choosing between a number of different designs containing manual and automated put away.It has become common that companies are choosing a combination of automated and manual processes. With this combination of processes, the companies are faced with choices about stock locations. With the help of well developed criterias about stock locations, there is a potential to achieve a more effective put away. The purpose of the study has been formulated as ”Investigate when automation in warehouse management makes the put away process in a central warehouse more efficient”.

     

    Through a case study on a warehouse, located in Nässjö, this report will answer the research questions regarding which of the manual and automated put away processes to use. The research questions are:

    1. Which criteria affect the decision of automated or manual put away?
    2. Based on the criteria that are raised in research question 1, when is it more efficient to store carton in AS/RS in comparison with manual picking with truck in pallet racking?

    The research questions wish to lift criteria as a basis for decision making and when it is more effective to use automated put away. The warehouse that this study is based on is using both automated and manual materials handling. The specific automation system that has been the basis for this study’s result is AutoStore. This report has a qualitative approach, the methods that has been used for collecting data are interviews, observations and document studies.

     

    Dimension, process time and utilization were the three criteria that are presented in the result. Based on the pallets limit of space in the automated system, the dimension of the article is the first criteria. In addition to the article’s measurements, the articles shape and material of the package had an impact if the article would fit in the load carrier. The two put away processes include different operations that differ in how long they take to execute, which has an impact on the company's efficiency. One reason for the time consuming difference, turned out to be how the quantity affects the time for put away in AutoStore comparing with the constant time for manual put away. A time consuming operation in the process with AutoStore was the one with repacking for the systems pallet. The operation also turned out to affect the utilization rate, due to its measurement of a pallets fill rate.  The quantity of put away in combination with the dimensions of the article, affects the total utilization rate.

     

    With the result, the aim of the study is to contribute to companies that contains a combination of warehouse-design with a basis for the decision making about stock locations. 

  • Alm, Jonathan
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    von Kiöhling, Marcus
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Lagerstyrningsmetoders påverkan på totalkostnad: Möjliga ufall för lager med säsongsvarierad efterfrågan2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – To analyze the impact on total cost by inventory control methods under the influence of seasonal demand. The purpose will be answered with following research questions:

    1. What inventory control methods can be used when there is seasonal demand?

    2. What is the impact of inventory control methods on total cost under the influence of seasonal

      demand?

    Method – The study was conducted as a case study and the empirical data was collected through interviews and document study. Both of these contributed to the basis for the analysis and for the calculations in the test of the study. Literature study was conducted and included theories for inventory control methods to answer the first research question, as well as formulas for the methods used to answer the second research question.

    Findings – It appears from the study, the inventory control methods that can be used when there is seasonal demand and during current planning environment is periodic ordering system and cycle service method. These have been tested further in the study. Seasonal index was considered an important method since it dimensions demand which to a high degree regulate the inventory levels and thereby the result of the inventory control methods. Further the study compares none theoretical inventory control methods and theoretical inventory control methods impact on total cost. It is shown that carrying costs, as a part of total cost, can be reduced by 25% during the peak season and 62% during off-season. This without changing the deliverability. Alternatively, the deliverability can be increased by 10% by using inventory control methods without increasing the total cost of the inventory.

    Implications – The theoretical contribution of the study is that it has increased the knowledge concerning inventory control methods when there is seasonal demand, and the possible results they might bring. The empirical contribution of the study is that companies can use the study as an indication of the economic benefits and motivation for implementing theoretical inventory control methods.

    Limitations – The tested inventory control methods did not alter the ordering cost, which to a high degree can have an impact on the total cost. The study also shows a possible impact on the inventory control during the current planning environment. If the planning environment changes, the result of the study can be different.

  • Helin, Jonathan
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Hellberg, Gustav
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Fäste mellan två metallytor: Sammanfogning av två aluminiumytor2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The degree project has been carried out in collaboration with Husqvarna, a world-leading manufacturer of products for gardening, park and forest management. An ever-evolving industry where innovation and creativity are required to be at the top. With constant demands from customers on performance and quality, a constant mechanical and design developments are required.

    Husqvarna's chainsaws use two-stroke engines where the scavenging channel are covered by a lid which in turn is fastened with screw joints. The channel through which the fuel mixture is pumped is open and a lid is needed to seal the channel. The channel is closed by screw joints, which in turn has a cost related to articles and materials. The lid that is fastened with screw joints has, one step in the production, articles concerning screws and fastening functions in the cylinder. The screw towers located on the cylinder could be an opportunity for improvement regarding weight in order to optimize the product.

    The aim of investigating new fastening methods is to see what possible improvements are available compared to the current method. These include weight reduction, which is very significant for these products. With a thorough literature study on attachment methods, a Pugh-matrix with its own values ​​has been utilized. It has helped to see which concepts are best suited within the weighting framework. The theories are built from scientific manuals within mechanics, strength and joints. With this basis, conclusions have been made regarding the functions that have been investigated and whether they are positive or negative in relation to the current method. The work is meant as a basic basis for Husqvarna, which can facilitate the use of alternative fastening methods for the channel cover.

  • Meszaros, Christopher
    et al.
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Wärn, Fabian
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Anomaly Detection for Machine Diagnostics: Using Machine learning approach to detect motor faults2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Machine diagnostics is usually done via conditioned monitoring (CM). This approach analyses certain thresholds or patterns for diagnostic purposes. This approach can be costly and time consuming for industries. A larger downside is the difficulty in generalizing CM to a wider set of machines.There is a new trend of using a Machine learning (ML) approach to diagnose machines states. An ML approach would implement an autonomous system for diagnosing machines. It is highly desirable within industry to replace the manual labor performed when setting up CBM systems. Often the ML algorithms chosen are novelty/anomaly based. It is a popular hypothesis that detecting anomalous measurements from a system is a natural byproduct of a machine in a faulty state.The purpose of this thesis is to help CombiQ with an implementation strategy for a fault detection system. The idea of the fault detection system is to make prediction outcomes for machines within the system. More specifically, the prediction will inform whether a machine is in a faulty state or a normal state. An ML approach will be implemented to predict anomalous measurements that corresponds to a faulty state. The system will have no previous data on the machines. However, data for a machine will be acquired once sensors (designed by CombiQ) have been set up for the machine.The results of the thesis proposes an unsupervised and semi-supervised approach for creating the ML models used for the fault detection system. The unsupervised approach will rely on assumptions when selecting the hyperparameters for the ML. The semi-supervised approach will try to learn the hyperparameters through cross validation and grid search. An experiment was set up check whether three ML algorithms can learn optimal hyperparameter values for predicting rotational unbalance. The algorithm known as OneClassVM showed the best precision results and hence proved more useful for CombiQ’s criterium.

  • Engman, Beatrice
    Jönköping University, School of Education and Communication, HLK, Global Studies.
    "Genom samverkan ska föreningen verka": En kvalitativ intervjustudie om biosfärområdet Östra Vätterbranterna och dess samverkan med samhällsaktörer för att nå hållbarhetsmålen i Agenda 20302019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The geographical area Eastern Vätterbranterna has since its initiation as a biosphere reserve according to UNESCO's appointment in 2012 worked towards being a model area in which sustainable development can evolve. This has been done from five sustainability perspectives: the ecological, social, economic, the perspective with broad cooperation and the learning perspective. In 2015, the UN General Assembly adopted Agenda 2030 with its seventeen global sustainability goals and associated 169 sub-goals, which the biosphere association Eastern Vätterbranterna then woven into its work. This qualitative interview study has, with the focus on the biosphere association's seven active focus areas, investigated the biosphere association of Östra Vätterbranternas work with Agenda 2030 in collaboration with the Municipality of Jönköpings and its County Government, within the association, and other community actors. Cooperation has stood as a constant point through both interviews and through one of the questions of issue, conclusions can be established that the Östra Vätterbranterna had served to perform better cooperation within themselves. The Municipality of Jönköping and its County Government looks up to the biosphere association's work with Agenda 2030 and raises collaboration between them as a major success factor, but cooperation between the focus areas in the biosphere association has not achieved its full potential. Furthermore, not all of Agenda 2030's global sustainability goals have been included, but it is something that the biosphere association is constantly working on, which continues to develop all the time, and which can be achieved with the help of other community actors. Cooperation is the concept Agenda 2030 advocates for to achieve the goals and the concept that permeates the biosphere association Eastern Vätterbranterna.

  • Movaffaghi, Hamid
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Pyykkö, Johan
    Uppsala University – Division of Applied Mechanics, Ångström Laboratory.
    Yitmen, Ibrahim
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Multi-Objective and Multi-Criteria Approach for Value-Driven Design in Industrialized Residential Multi-Storey Timber-Building2019In: Computational Methods in Wood Mechanics – from Material Properties to Timber Structures. / [ed] Thomas K. Bader, Josef Füssl, Anders Olsson, Växjö, 2019Conference paper (Refereed)
    Abstract [en]

    Serviceability in terms of springiness, vibration and deflection [1], as well as sustainability in terms of climate impact and costs [2] have been identified as the most important aspects for appropriate functioning in residential multi-storey timber-buildings. Thus, the aim of this study is focused on product development of a timber-concrete composite (TCC) floor system by 1) enhancing serviceability performances of the floor for larger spans (above 6 m) in terms of stiffness and dynamic response, and 2) reducing both climate impact (CO2-emissions) and costs, by optimizing material usage. As the case study a timber structure of a residential multi-storey building, including concrete ground floor and shaft, with the overall dimensions ܮൈܹൈܪൌ30ൈ11ൈ14 ሾ݉ଷሿ has been studied. The geometry of the load bearing structural elements has been modelled using finite element programs. As serviceability criteria for the floors, the deflection due to a point load was chosen. The deflections were related to comfort classes given in [3] and transverse load distribution was taken into account according to [4]. The deflection and effective bending stiffness (EIef in EC5 Annex B) were chosen as objective functions, while thickness of concrete slab and shear stiffness of the connection between glulam beam and concrete slab were chosen as design variables in a multi-objective optimization. The relationship between connection stiffness and height of the concrete slab for comfort class B can be seen in Figure 1. In the figure the cross-section of the TCC floor structure, with a span of 7.5 m, is also depicted. Figure 1: Connection stiffness-concrete thickness relationship and cross-section for the TCC floor. After optimization, a multi-criteria analysis was applied to select a design solution from the Pareto optimal front, satisfying some subjective preferences of the stakeholders for value-driven design. The results in this study integrates serviceability, environmental and economic performances for value-driven design and supports decision making in the early phases of a project, where various alternatives can be analyzed and evaluated. 

  • Pozneanscaia, Cristina
    Jönköping University, School of Education and Communication.
    The Effects of Mindfulness-based Interventions on Functioning of Children and Youth with ADHD: A Systematic Literature Review2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: Given the incomplete benefits of the pharmacological therapy for ADHD and its over-prescription in children over the last decades, there is an explicit need for alternative treatments. Mindfulness-based Interventions (MBIs) are a family of emergent self-regulation practices including meditation, yoga and body-awareness exercises, found to be an effective therapy for ADHD. Due to poor methodological design and significant risk of bias across studies, mindfulness approach remains an investigational treatment.

    Aim: This systematic review sought to identify and critically appraise the evidence on the functioning outcomes of MBIs in children and youth with ADHD.

    Method: The literature search was conducted in 7 databases for psychology and social sciences to identify controlled trials – randomized- and non-randomized, evaluating MBIs published in peer-reviewed journal in English between 2000-2019. Only studies focusing on children and youth aged 7-18 years with documented ADHD symptoms were considered for inclusion.

    Results: Six controlled trials were included and analysed. Meditation, breathing techniques, self-awareness and yoga exercises were the most common activities implemented across the 6 studies. Significant reduction of inattention and hyperactivity/impulsivity symptoms; and improvements of sustained attention, working memory and emotional regulation were reported across studies, with small to large effect size.

    Conclusion: Despite the limitations, MBIs do prove to be an effective complementary treatment for reduction of the core ADHD symptoms and improvement of executive functioning (EF). Further research is needed to elucidate how these interventions improve social functioning and participation of children and youth with ADHD, which would enable a wider implementation of these practices at the community level.

  • Puomila, Iida
    Jönköping University, School of Education and Communication. 1995.
    Needs for development towards a more inclusive education system:  The case of Finland: A systematic literature review from 2009 to 20192019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The movement towards developing existing education systems to be more inclusive can be seen worldwide. However, even in a country such as Finland where inclusive ideology has been promoted in national policies for a considerable time, there are existing needs for development that need to be examined. The aim of this systematic review was to examine these existing needs for development in primary schools in Finland. Inclusive education means the inclusion of all children. In this systematic review, the focus was on those children in risk of exclusion with special educational needs due to a disability. The results are analyzed by utilizing a framework inspired by the framework developed by Ainscow and Miles (2009). The results show that there are several needs for development especially related to systems and structures, and practice. Furthermore, more systematic actions are needed moving from policies to effective implementation of inclusive practices. Overall, inclusion is a complex concept and future research conducted with diverse groups of children of all ages is greatly needed. 

  • Beteinaki, Eleftheria
    Jönköping University, School of Education and Communication, HLK, CHILD.
    Social Interactions and Friendships of adolescents with vision impairments: A scoping review2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: Social exclusion of people with vision impairments is an ongoing issue. Since social inclusion emphasizes social and emotional aspects as distinct from academic ones and the aspects concerning opportunities, the focus is turned on the domain of social interactions and friendships. Adolescence is the time point when youth feels mostly the need to ‘fit in’ in social circles and groups and the social life and friendships are important aspects of young people’s well-being and development.

    Aim: The aim of this study is to review the existing literature on the social interactions and friendships of adolescents with visual impairments from their own perspective and investigate the interventions designed to improve their social interactions and friendships.

    Method: A literature search on the databases of ERIC, CINAHL and PsycINFO and a hand search on the reference lists of the relevant articles was conducted. The search was limited to recent peer reviewed studies published in English, reporting perspectives of adolescents (13-18 years old) with visual impairments on their social interactions and friendships and intervention studies aimed to support them in the aforementioned domain.

    Results: In the 18 included studies, adolescents with vision impairments engaged more in passive activities that were not highly interactive. They reported being satisfied with their networks and friends, however contradictions existed in the perceived quality of friendships and the feeling of loneliness. The context of school was presented often as problematic compared to other contexts, and friendships in schools were rare. According to adolescents’ voices, friendships helped to cope with the impairment, friends had a meaningful role in their life and they made school life more enjoyable. In comparison to their sighted peers, adolescents with vision impairments had smaller networks and less friends with whom they had different type of relationships. Lastly even though several barriers and facilitators were identified, which belong to domains of Body functions and structures and Physical, Attitudinal and Social environment, there was a lack of interventions aiming to support the social interactions and friendships of adolescents with vision impairments.

    Conclusions: Considering the importance of social interactions and friendships in adolescents’ life for them to learn, develop and enjoy, more interventions with social focus need to be designed in respect to the challenges that exist. A plethora of barriers and facilitators impacting the social interactions and friendships of adolescents with vision impairments were identified that need to be taken into consideration for future research and interventions since the existing literature provided so far is limited. Adolescents need to be engaged in this process so that their interests, preferences and their views are prioritized. 

  • Triantafyllou, Marouso
    Jönköping University, School of Education and Communication.
    School-based Interventions or Prevention Programs regarding Alcohol, Smoking and Drug Use among Adolescents with Disabilities or Physical Impairments: A Systematic Literature Review2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Introduction Substance use in adolescents with disabilities is rising, containing the prevalence of substance-related disorders (SRD) such as addiction, mental or health disorders, cancer, accidents and mortality. Yet little is known about the existing substance use prevention programs among adolescents with dosabilities or physical impairments. The aim of this systematic review was to investigate the effects of school-based interventions or prevention programs directed at the reduction of alcohol, tobacco and drug use in young adolescents with disabilities or physical impairments. Method Five scientific databases were explored mainly for school-based randomized controlled trials (RCTs) and prevention programs examining the effects of substance use interventions and prevention programs on adolescents with disabilities or physical impairments. Guided by the NICE guidelines, eligible articles were detected from which data were collected. A systematic literature review was performed for many diverse outcomes such as, substance use knowledge, substance use, modelling social environment, intention to quit smoking, peer pressure, etc. Results The primary literature search resulted in 821 articles. Five studies were incuded in the systematic literature review. Most of the collected studies were about adolescents with intellectual disabilities (MBID or MMID). The review's sample group ranged from 12-to 18-year-old adolescents. Included studies had a total sample of 981 out of which 13 were teachers. Studies measured both primary and secondary outcomes like modelling smoking, substance use and frequency of alcohol use. Conclusion This review summarized evidence about interventions and prevention programs aimed at decreasing or preventing substance use in adolescents with various types of disabilities or physical impairments. Substance use education increases knowledge about alcohol, tobacco and drug use and the health-related harms in teenagers with disabilities. Additional research is required especially among teenagers with intellectual disabilities and other types of disabilities. 

  • Tony, Mary Pushpy
    Jönköping University, School of Education and Communication, HLK, CHILD.
    The effectiveness of Assistive Technology to support children with Specific Learning Disabilities: Teacher Perspectives2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    According to the UNICEF report, up to ten percent of children in the world have affected specific learning disabilities (SLD) and the majority of these children are educated in general education classrooms. An important resource for children with learning disabilities to flourish in the classroom is access to assistive technology. To prepare children on how to utilize assistive technology in the learning environment is important for teachers. This systematic review focused on teacher perspectives on assistive technology regarding children with SLD. Six scholarly articles were used for this study. The information drawn from the articles showed that teachers are receptive to assistive technology in their classrooms. They perceived assistive technology as an important supportive device for improving the vital skills of reading and writing comprehension. However, it is clear from their perspectives that the teachers needed more support than they were able to access in order to feel comfortable to implement and use assistive technology in the classroom. Therefore the need for professional development and training and the integration of appropriate technical devices are vital to enhance the development of children with SLD. Future research will be focus on how pre-service teachers are being prepared for AT use as a part of their pre-service training program and professional development.

  • Karlsen, Joakim
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Omkonstruktion av vapenfäste till additiv tillverkning2019Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    The thesis project has been carried out in collaboration with Saab training and simulation in Huskvarna, which manufactures military training products. The aim of the project was to investigate the possibility of using additive manufacturing as the method for future manufacturing for the small arms transmitter bracket (SAT-bracket, a bracket for gun) to reduce lead time, cost and weight. A physical product has been developed through the Selective Laser Melting technique (SLM), where the least possible amount of support structures has been achieved for the selected build orientation. To be able to optimize the design with the help of lattice structures, knowledge of the technology has been acquired through information searched on scientific texts and websites. Identification of strengths and weaknesses in the development process and the possibility of using a more favorable material for the application were documented to be evaluated against a traditionally manufactured component.

    The final designs have been modeled using two different design methods, both in which had reduced the weight between 28-44% where the stiffness is in the likes of the reference product. The conclusion drawn from the work is that additive manufacturing is a manufacturing method   that for the SAT-bracket is a favorable alternative for smaller production volume.

  • Norman, Sofie
    et al.
    Jönköping University, Jönköping International Business School.
    Holmquist, Sofia
    Jönköping University, Jönköping International Business School.
    Ljungqvist, Carolina
    Jönköping University, Jönköping International Business School.
    Breaking through the Ceiling: Studying the Impact of Mentorships on Female Career Development2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this qualitative study was to examine how mentorships can impact women’s career development. Previous research shows that there is an inequality gap between men and women on management positions and the aim for this research paper is to see if mentorships could help close this gap and make the top-level management more gender equal.

     

    The Swedish banking industry is interesting to research due to its overall equality in the organisation, but extreme inequality in the top of the hierarchy. Sweden is one of the most equal countries in the EU but are still struggling to eliminate structural discrimination from their organisations. Mentorships has through previous studies shown to be a helpful tool for women to progress in their careers and increase gender balance in workplaces.

     

    To be able to answer the research questions and fulfil the purpose of this research a qualitative research approach was applied. Five semi-structured interviews was held in order to gather empirical data. The participants were women in managerial positions within one of Sweden’s largest banks. Because of a confidentiality agreement, the name of the bank will not be revealed but rather be referred to as The Bank.

     

    The findings of this research show that both formal and informal mentorships can be used as a tool for women to progress in their career. Mentorships give women the support they need to believe in their own worth, they also get access to new parts of organisations that before has been unattainable for them and get an insight in the political games within an organisation.

  • Zetterman, Jennifer
    et al.
    Jönköping University, School of Health and Welfare.
    Ahmadzai, Wagma
    Riskfaktorer för karies hos individer med astma2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • Brattwall-Eilert, Sofia
    et al.
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Nursing Science.
    Tysk, Emelie
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Nursing Science.
    Att använda pedagogiskt bildmaterial inom barnhälsovården i syfte att förebygga övervikt: Sjuksköterskors erfarenheter2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: Children who are overweight are more likely to become overweight or obese as adults. It's therefore important to establish good eating habits early, and the child health care has a significant role to play. Grunda Sunda Vanor is an image based tool which helps nurses encourage healthier lifestyles and interaction between families and health professionals.

    Aim: The objective of the study is to showcase the experience of working with imagery to promote health and manage child obesity within children’s health.

    Methodology:  The study was based on qualitative interviews with semi-structured questions. 15 nurses were interviewed and the results were analysed through Graneheim and Lundman’s analysis of content.

    Results: Identified categories within the results were; structure as the tool helps nurses to promote health, communication since it increases understanding and promotes a neutral approach and involvement of the family.

    Conclusion:  The material served as checklist and helped the nurses tailor the information to the needs of individual families. The imagery created curiosity and made the family feel involved. The relationship between the family and the health professionals became more neutral, which increased the opportunity to achieve empowered

  • Johansson, Malin
    et al.
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Rehabilitation.
    Felixon, Lisa
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Rehabilitation.
    Activity and Participation in individuals who have received lower limb prostheses from Exceed: A qualitative study conducted in Cambodia2019Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    Background: Cambodia has one of the highest percentages of persons living with disability in the world. Disabled people often encounter stigma in the community, and they do not have the same access to a range of services as the rest of the population. A prosthetic device can enable a disabled person and help them to become more active and participating.  

    Aim: The aim of this study was to investigate the perception of individuals who have received lower limb prosthesis from Exceed regarding factors that affect their level of activity and participation. 

    Method: The study is based on recorded qualitative interviews with semi-structured questions. 10 participants between the age of 22-68 who had a prosthesis were included in the study. An inductive content analysis was performed on the data.  

    Results:The study yielded two main categories which affected the participants activity and participation; Prosthetic limb and a Psychosocial environment.

    Conclusion: This study gives a deeper understanding of facilitators and barriers affecting activity and participation for individuals with a prosthesis. The results of this study highlight the complexity of the issue and the importance of both the prosthetic device and psychosocial environment. The study gives an insight into factor contributing to different levels of activity and participation and it can help to improve the outcome for prosthetic users.

  • Hermansson, Erik
    et al.
    Jönköping University, School of Health and Welfare, HHJ. Prosthetics and Orthotics.
    Marcus, Ekberg
    Jönköping University, School of Health and Welfare, HHJ. Prosthetics and Orthotics.
    A material study of insoles: Manufactured using different methods2019Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    Aim: The aim of this study is to evaluate if additive manufacturing (AM) is an appropriate manufacturing method for insoles in comparison to vacuum forming (VF) and subtractive manufacturing (SM) in regards of material properties such as abrasion resistance. Background: Traditionally insoles are manufactured with either VF or SM. AM has been around for some decades but implementation into orthotic and prosthetic (O&P) business has not been accomplished yet. Therefore, the quality of the products produced with AM must be tested in comparison with traditional methods. Method: A comparison of samples for the mentioned manufacturing methods was done with the help of an abrasion testing machine with the standard ASTM G133. Two samples were produced from each manufacturing method and respectively tested for one and two hours. All the samples were weighed before and after the tests with the help of a four decimal scale. The difference in weight before and after the test and coefficient of friction was evaluated. The weight difference was analyzed to see how much material had been removed from the sample. The percentage of wear loss was calculated for each specific sample, both for one hour and two hours of testing. No statistical analysis could be made due to the limited amount of samples and testing time. Result: No statistically significant could be found for either wear loss or the coefficient of friction as mentioned above. Conclusion: A conclusion whether which material having the best abrasion resistance for respectively manufacturing method could not be drawn due to limited results. This study can be seen as a pilot study where the methodology can be used in further studies. Further research on AM needs to be conducted.

  • sofi, karlsson
    et al.
    Jönköping University, School of Health and Welfare, HHJ. Prosthetics and Orthotics.
    Thorarinsdottir, Thorkatla Dagny
    Development and preliminary validation of a new brace appearance questionnaire: A new instrument to investigate, if idiopathic scoliosis patient’s perception of appearance of their Boston corset would influence their compliance and whether it is in a positive or negative way. (A mixed method study).2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Aim: To preliminary validate a questionnaire that was developed in this study. The questionnaire was designed to investigate, if patient’s perception of appearance of their Boston corset influences their compliance, in a positive or negative way.

     

    Background: Going through brace treatment brings a lot of feelings for adolescent idiopathic scoliosis patients. Not having a “perfect body” decreases body image and self-esteem. It is highly likely that by changing the patients’ perspective of their brace into liking the appearance of it; the probability of positive compliance will increase in patients.

     

    Method: Mixed method approach was used to develop and validate a new questionnaire. The development and validation were done using literature, expert and patient groups. Qualitative data was evaluated, and quantitative data was analyzed using Pearson’s correlation coefficient and Cronbach alpha.

     

    Result: Preliminary validated questionnaire was created. The group used for validation were all idiopathic scoliosis patients, four boys and four girls, between the age of 6 and 15 years old.

     

    Conclusion and outlook: Further validation of the questionnaire is required before applying on future studies. Preliminary results indicate that patients who like the way they appear in their brace are also compliant.

  • Larsson, Sophia
    Jönköping University, School of Education and Communication, HLK, Disciplinary Research.
    Fånga dagen: En kvalitativ studie om hur lärare i grundskolans F-3 uppfattar användandet av digitala verktyg för att komma åt skrivinlärningens mysterium.2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • Hammerin, Karl
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Streitenberger, Ramona
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    RTLS – the missing link to optimizing Logistics Management?2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis was to investigate how potentials of Real-Time Location Systems (RTLS) in relation to Just In Time (JIT) management could be utilized within logistics management. For this, a framework, based on previous research of the interrelations of RTLS and JIT management, is proposed, to assess the effects of RTLS on logistics management, both on a managerial - as well as on an operational level. To answer the proposed research questions, the study followed a deductive and exploratory case study design, which was conducted at a company within the automotive industry. To understand the challenges within logistics management at the case company, interviews, observations, analysis of internal documents and a focus group were used, which allowed for a triangulation of the captured information. The findings and analysis of the data show that on an operational level the challenges within logistics management are related to complex logistic structures, pull strategies with partial push material flows, lack of information and – reliable data, as well as processes reliant on individuals. On the managerial level the findings suggest challenges related to high complexity and space constraints, time constraints, lack of transparency and – data connections, the company's improvement focus, employee attitude and a lack of reliable data. When the challenges were evaluated in relation to the proposed framework, it shows that these challenges would be resolved or counteracted by the benefits RTLS could provide in relation to JIT management. This study thereby supports the positive correlation between RTLS’s potential and JIT in logistics management.

  • Ahlström, Selin
    et al.
    Jönköping University, School of Health and Welfare.
    Svensson, Helena
    Jönköping University, School of Health and Welfare.
    Frisktandvård: En enkätstudie om tandvårdsanställdas attityder och avtalshantering2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Prepaid dental care - a questionnaire on dentalstaff attitudes and contract management

     

    Abstract

    Background: In order to get young people to maintain a continued regular contact with dental care, after they are regarded as paying adults, prepaid dental care was introduced in Västra Götaland in 2007. Prepaid dental care is a payment model in which patients pay a specific amount for their dental care over a three-year period, monthly or annually. Since prepaid dental care is a major part of the daily work in public dental care, it is important to examine the dental staff's attitudes to this payment model.  Purpose: The purpose of this study was to investigate the dental staff's handling of prepaid dental care and their attitudes regarding this payment model in the Public Dental Service in Region Kalmar County. Method: A questionnaire study based on a quantitative approach with certain issues analysed by qualitative method was performed. Surveys were sent to all employees at all 18 general dental clinics belonging to Region Kalmar County Public dental service. In total 133 employees answered the questionnaire.  Result: Respondents generally had a positive view on prepaid dental care. Regarded as positive was for example the opportunity of regular individualized treatment independent of costs. The main drawback, according to the respondents, was that patients who do not have prepaid dental care are not given any priority for being summoned for examination. Most respondents offer contracts to the majority of the patients and regardless of the price class. Conclusion: Prepaid dental care was considered positive, favouring both the clinic and the patients who chose this payment model. Although it should be taken into consideration that patients without prepaid dental care are not prioritised to be summoned for treatment compared to patients with prepaid dental care. The majority of the respondents are in agreement that prepaid dental care can impair the care situation of patients without contract.  

     

    Keywords: Dental Insurance payment, Dental staff, Prepaid dental care, R2, Region Kalmar Län

     

  • Bhatti, Areeb
    Jönköping University, Jönköping International Business School, JIBS, Business Administration.
    Internet of Equipment: Enhancing customer value and experience2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: Organizations are continuously challenged to create differentiated customer value and experience to increase profitability and gain competitive advantage. At the same time, the fast-paced advancement of technologies provides the opportunity to the organizations to create a differentiated customer value by offering innovative products and services. Internet of things (IoTs) is one such emerging technology that brings within itself opportunities and challenges to be addressed. However, so far research has not sufficiently followed how the utilization of IoTs can enhance customer value and experience.

    Purpose: The purpose of conducting this study is to explore how the utilization of IoTs enhance customer value and experience in an equipment manufacturers context and what are the associated opportunities and challenges. The study also aims to contribute to gap identified in the literature about how organizations can utilize IoTs to enhance customer value and experience.

    Method: The qualitative study utilized a single instrumental case study to explore the research questions. The data is collected by conducting semi-structured in-depth interviews.

    Conclusion: The study reveals that the utilization of IoTs can significantly improve customer value and experience in many ways. This may involve enabling user to monitor, control and optimally use the equipment, sharing useful information, allowing value co-creation and synergistic values and finally by providing autonomous equipment’s or solutions. However, the study also reveals that the utilization of IoTs also pose certain challenges along with the opportunities which must be carefully evaluated.

  • Ankarkrona, Jesper
    et al.
    Boldt, Simon
    Can lean and reconfigurability be combined?: From a manufacturing system investment perspective2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • Lindberg, Jesper
    Jönköping University, School of Education and Communication, HLK, Disciplinary Research.
    Dag Hammarskjölds minne: En innehållsanalys av svensk medias gestaltning av Dag Hammarskjöld under 2000-talet2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this study is to show how the former secretary general for the United Nations, Dag Hammarskjöld, has been portrayed by Swedish media during the 21th century. The analyzed newspapers are Svenska Dagbladet, Expressen and Jönköpings-Posten, two nationwide newspapers and one local. This is done through a content analysis and the theory used for this study is a memory-cultural perspective, in order to show how media has shaped Hammarskjöld’s memory.

    The content analysis is structured with a code scheme consisting of nine different code units representing different themes; three themes of symbolism, three themes of characteristic, and three themes of qualification. The result of the analysis shows that the newspapers mainly focus on portraying Hammarskjöld as a symbol for the United Nations and moral values, as a person representing determination, and as a qualified politician and diplomat. There are also no visible patterns in the content analysis that would imply differences between how the nationwide and local newspapers portray Hammarskjöld.

  • Lager Millton, Sofia
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    Lärande och social interaktion: Familjehemsföräldrars upplevelser av Letterbox Club2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Learning and social interaction, - Foster parents experiences of the Letterbox Club This paper focuses on education and learning for children in foster care, more specifically on the intervention Letterbox Club. The overall purpose of the study is to investigate how foster parents experience and describe how Letterbox Club influences the children’s learning, and the interaction between the children and the foster parents. This focus differs from previous studies of Letterbox Club.

    The data consist of eight qualitative interviews of foster home mothers who had a total of nine placed children. All study participants had been part of the Letterbox Club intervention during the fall of 2017. The interviews were analyzed using content analysis and three themes emerged: The family home as a learning environment, Letterbox Club as a learning tool and Letterbox Club as a tool for relationship

    The study concludes that the conditions for foster homes as a learning environment vary widely, depending on family constellations, habits, interests, backgrounds, etc. This can make different opportunities for using and utilizing the Letterbox Club packages. Additionally, most foster parents described how they benefited from Letterbox Club, and used it both as a learning tool and a relational tool, but there are also examples that certain content does not work for all foster parents, children and situations.

  • Vitija, Majlinda
    et al.
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    Ingabire, Darlene
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    En vinjettstudie om etnicitetens betydelse i socialsekreterares bedömningar av unga lagöverträdare2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Previous research has shown that ethnicity can have an impact in social worker’s assessments. Despite this, research is relatively limited when it comes to the subject of the influence of ethnicity in child health investigations, particularly in assessments of juvenile offenders. The purpose of this study is to investigate if and how social worker’s assessments of juvenile offenders differ based on the ethnicity of the youth. This issue is essential in today's society, as Sweden is characterized by a multi-culture and a variety of ethnicities. To achieve the purpose of the study, two vignette surveys were designed where the only difference was the name of youth. In one vignette the youth had a Swedish name (Adam) and in the second vignette the youth had a name linked to a foreign name (Amir). The vignettes were sent in the form of a web survey to social workers who are active in the child and youth care of social services. The vignette surveys were answered by 25 social workers, of which 12 treated the survey on Adam and 13 the survey on Amir. The results show that there aren’t any statistically significant differences in social worker’s assessments based on youth ethnicity. However, there is a statistically significant difference between the age of social workers in relation to the estimation of concern in particularly one aspect of the youth life. The results have been linked to previous research in the field and to theoretical starting points from social constructivism, street-level bureaucracy, categorizations and stereotypes.

  • Gren, Nathalie
    et al.
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    Bartula, Sandra
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    ”Vi har ju en jätteviktig roll”: En kvalitativ intervjustudie om hemtjänstpersonals erfarenheter av att möta äldre personer med psykisk ohälsa2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this qualitative study, eight semi-structured interviews were conducted with educated home care employees within the home care workforce. The aim of this study is to investigate home care employees’ experiences of elderly people with mental illness within the frame of their work. Through a thematic analysis two main themes where identified. The first theme, The individual as a project, presents how the home care employees perceive the meeting with elderly’s mental illness as complex, and experience that a good reception and regular contact are two important factors for being able to handle mental illness in the best way. This is further presented in two subthemes – Reception and Continuity. The second theme, The individual within the organization, presents the challenges that the home care employees encounter with working with elderly people with mental illness. These challenges consist of timeframes that the employees perceive as hard to work within but also a lack of competence, both within themselves and in the society when it comes to elderly’s mental illness. Furthermore, this is also presented in two subthemes – The timeframe and Lack of competence. Finally, the result is connected to previous research where similarities between the previous research and the result is revealed regarding the meeting with mental illness as complex and comprised of challenges, including lack of time, knowledge and competence. The complexity and challenges are further problematised from Lipsky’s theory of street level bureaucracy and emphasises the balance in home care employees’ work between the individual needs and the structure of the work.

  • Ottosson, Andrea
    et al.
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    Evenholm, Louise
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    Emberg, Linnéa
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    They are not born to be victims or prostitutes – they are becoming: A qualitative study of how one organization in Moldova is working preventively with human trafficking2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this study is to find out how one organisation in Moldova is working with the issue of human trafficking. It will therefore be explained how the professionals in that organisation describe how the human trafficking situation has developed in Moldova according to them and how they work and prevent the issue according to that developed situation. This study is a qualitative study and has been carried out utilizing 14 semi-structured interviews. The information given from the interviews has been categorized, and then analysed in relation to previous research and Bronfenbrenner's ecological system theory. This theory is applied to explain how an individual's development is affected by factors on several levels; micro-, meso-, exo-, macro- and chronosystems. The causes for human trafficking explained by the professionals included the culture, religion, economics and the history of the country, and these in turn can have affected the family and the view of one’s self. The conclusions based on this study are that because the factors that could be causes for human trafficking are found on all the levels, it is important that social workers and the society has this in mind and as an approach when dealing with human trafficking.

  • Missarov, Kirill
    et al.
    Jönköping University, School of Engineering.
    Ring, Hampus
    Jönköping University, School of Engineering.
    Processkartläggning från förfrågan till leverans2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • Liedberg, Jesper
    et al.
    Jönköping University, School of Engineering.
    Werthén, Alexander
    Jönköping University, School of Engineering.
    Flexibel monteringslayout: Hur kan en layout utformas för lågvolymsprodukter under kundkontrakt i elektronikbranschen2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Flexibility is a concept that is becoming more and more common in industries around the world. Customers demand products that is suitable for their specific needs. This requires that the production systems easily can be adapted to meet these needs.  Together with a company in the electronics industry, this thesis studied flexible assembly layouts. The company today has three customer contracts where the products not continuously assembled.  This leaves the production areas unused which creates low resource utilization. In order to address this issue the authors investigated how a more flexible assembly layout would meet the needs of a changing production.  The purpose of this thesis was to investigate how a flexible assembly layout could be designed, for low volume products under customer contract in the electronics industry. The goal was to find the most ideal layout design that would reduce the area which the assembly line occupies. This would make room for more customer contracts and still maintain the set requirements.  To make it possible to evaluate the layout change, specific requirement for the assembly area was set. From there, the authors used three different concepts to create a flexible assembly area. Movable tool boards Small batch sizes U-line shaped assembly cells. Using these tools, three different layout designs were created and required different levels of investment. These layouts were compared to each other in order to identify differences.  The result from this study shows a reduction of 24 -46 % in the assembly area if the proposed layouts designs were to be used. In conclusion, the authors propose to carry out a layout change but further studies need to be made on which potential customer contracts could benefit from this newly available area. From there, an appropriate degree of investment can be established. The layout designs consists of different concepts, as mentioned above, and they can be modulated to adapt to different needs. This makes the concepts generalizable and can be implemented in other assembly layouts with similar conditions

  • Cassandra, Björklund
    et al.
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    Mia, Sarajlija
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Social Work.
    "Ibland är det inte själva missbruket som är problemet": "En kvalitativ studie om socialarbetares erfarenheter av en lyckad respektive misslyckad placering inom missbruksvården"2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis