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  • 1.
    Abdul-Ahad, Amir Stefan
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Çürüklü, Baran
    Mälardalen University, School of Innovation, Design and Engineering.
    Folke, Mia
    Mälardalen University, School of Innovation, Design and Engineering.
    Lindén, Maria
    Mälardalen University, School of Innovation, Design and Engineering.
    Indirect Wavelet-Based Cardio Arrhythmia Detection Algorithm2008In: Medicinteknikdagarna, Gothenburg, Sweden, 2008, p. 14-15Conference paper (Refereed)
  • 2.
    Abid, Ali
    et al.
    Mälardalen University, Department of Innovation, Design and Product Development. Mälardalen University, School of Innovation, Design and Engineering.
    Roback, Joel
    Mälardalen University, Department of Innovation, Design and Product Development.
    Produktutveckling för Cate & Nelson Design: Framtagning av möbel2008Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Denna rapport behandlar examensarbete utfört för industridesignföretaget Cate & Nelson Design. Företaget ligger i Eskilstuna och jobbar i huvudsakligen med möbeldesign och inredningsprodukter. Projektgruppensuppgift har varit att ta fram en ny möbel för företaget och arbetet har omfattat utveckling av hela produkten från idé till prototyp.

  • 3.
    Abrahamsson, Henrik
    et al.
    Swedish Institute of Computer Science, Kista, Sweden.
    Gunnar, Anders
    Swedish Institute of Computer Science, Kista, Sweden.
    Traffic Engineering in Ambient Networks: Challenges and Approaches2004Conference paper (Refereed)
  • 4. Abugessaisa, Imad
    et al.
    Sivertun, Åke
    Le Duc, Michael
    Mälardalen University, School of Sustainable Development of Society and Technology.
    A systemic view on Swedish traffic road accident data acquisition system2007Conference paper (Refereed)
  • 5. Abugessaisa, Imad
    et al.
    Sivertun, Åke
    Le Duc, Michael
    Mälardalen University, School of Sustainable Development of Society and Technology.
    GLOBESAFE: A platform for information sharing among road safety organizations2007Conference paper (Refereed)
  • 6. Abugessaisa, Imad
    et al.
    Sivertun, Åke
    Le Duc, Michael
    Mälardalen University, School of Sustainable Development of Society and Technology.
    Map as interface for shared information: a study of design principles and user interaction satisfaction2006Conference paper (Refereed)
  • 7.
    Adolfsson, Emma
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Ergül, Caroline
    Reducering av produktionstryck i A-linan: Förflyttning av produkt2013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • 8.
    Afshari, Houtan
    Mälardalen University, School of Innovation, Design and Engineering.
    Finding optimum batch sizes for a high mix, low volume surface mount technology line2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • 9.
    Ahlskog, Mats
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. Eskilstuna.
    Supporting pre-development of new manufacturing technologies2015Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    In today’s tough industrial environment, efficient development of new products and new manufacturing solutions is necessary to stay competitive on a global market. Manufacturing companies use substantial money and development resources to develop new products. However, the resources spent on finding and implementing emerging manufacturing technologies are much more limited. This is often the case even though it is well known that a way of competing on a global market is through the introduction of new manufacturing technologies that can improve product quality as well as contribute to reducing manufacturing time, resulting in reduced product price and in the end increased profit.

    When introducing new manufacturing technologies, different challenges arise such as lack of knowledge, involvement of an external equipment supplier, etc. In addition, time-to-volume is critical when introducing new manufacturing technologies in a manufacturing context. To be able to have a fast ramp-up, manufacturing technology needs to be mature enough and at the same time meet all requirements. Efficient introduction of new manufacturing technologies requires that pre-development activities have been performed in advance.

    Previous research in this area highlights a lack of knowledge and solutions regarding pre-development of new manufacturing technologies. Such pre-development is important in order to have a successful introduction, fast time-to-volume and production system development. Based on these challenges, the objective of the research presented in this thesis is to develop support for pre-development of new manufacturing technologies.

    The research is based on literature reviews and three empirical case studies, carried out over a two-year period of time. The first empirical case study was an exploratory case study in the manufacturing industry. The purpose of that research study was to identify critical factors forcing manufacturing companies to improve the development of manufacturing technologies.

    The second study was a longitudinal embedded case study in the manufacturing industry with the purpose of identifying factors that affect evaluation of new manufacturing technologies during new product development. Particular attention was given to the product development process and how it has affected the evaluation of new manufacturing technologies.

    Finally, the third study was a single case study in the manufacturing industry with the purpose of analysing and discussing the assessment of the maturity level of a manufacturing technology.

  • 10.
    Ahlskog, Mats
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Bruch, Jessica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Jackson, Mats
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    FACTORS AFFECTING DEVELOPMENT OF PRODUCTION TECHNOLOGIES IN A MACHINING ENVIRONMENT2014In: Tools and Methods of Competitive Engineering 2014 TMCE 2014, 2014Conference paper (Refereed)
    Abstract [en]

    The purpose of this paper is to identify critical factors forcing manufacturing companies to improve the development of production technology in a machining environment. The focus in the paper is on industrial challenges within product design and production system development when introducing new products in a machining environment. Particular attention is given to the product development process and the production equipment acquisition process. A single case study is presented, consisting of interviews, observations, document studies and an analysis of a large Swedish manufacturing company. The case study company is characterized by advanced production technology, high mechanization and high automation level. In parallel with the case study a literature review was conducted in order to identify state-of-the-art methods/models for efficient design and product introduction within a production system. The paper identifies a gap in the current way of working within the case company as well as challenges regarding the development of production technology. Based on the study, the need for future research has been identified including the need of developing an improved working support for efficient production technology development when industrializing new products.

  • 11.
    Ahlskog, Mats
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Bruch, Jessica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Jackson, Mats
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Joint Development of a Manufacturing Technology: A Longitudinal Case Study within the Manufacturing Industry2015In: 22nd International Annual EurOMA Conference EurOMA15, 2015Conference paper (Refereed)
    Abstract [en]

    In order to compete within the manufacturing industry, there is a need to acquire and develop new manufacturing technologies to differentiate the company from others. Therefore, the purpose of this paper is to analyse factors affecting development of a manufacturing technology in a joint development project with an equipment supplier. A longitudinal case study has been conducted at a Swedish manufacturing company and the collaboration between a manufacturing company and an equipment supplier has been studied. The findings reveal that tacit knowledge and good equipment supplier relationship are highly important factors that facilitate development of a manufacturing technology.

  • 12.
    Ahlskog, Mats
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Bruch, Jessica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Jackson, Mats
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Managing early manufacturing technology development – phases and key activities2016In: 23rd EurOMA conference EUROMA 2016, 2016Conference paper (Refereed)
    Abstract [en]

    In order to compete within the manufacturing industry, there is a need to acquire and develop new manufacturing technologies to differentiate the company from others. This paper builds on extant operations management and innovation management literature with the focus on how to managing early manufacturing technology development. A multiple case study has been conducted at a Swedish manufacturing company in the automotive industry and our paper proposes a conceptual process for early manufacturing technology development and the key activities therein. The findings are relevant for managers working with long-term development and the paper concludes by discussing implications and research limitations.

  • 13.
    Ahlskog, Mats
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Jackson, Mats
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Bruch, Jessica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Manufacturing Technology Readiness Assessment2015Conference paper (Other academic)
    Abstract [en]

    The purpose of this paper is to analyze and discuss how the MRL scale can support the assessment of a manufacturing technology’s maturity level. A single case study within the manufacturing industry has been conducted investigating the use of a MRL scale. An assessment of MRL 4 has been studied.

  • 14.
    Ahlén, Richard
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Grönholm, Robin
    Mälardalen University, School of Innovation, Design and Engineering.
    En analys av ljudlatens i Windows 10 på tillgängliga enheter2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report is written during a project done by two students at Mälardalen University during the course DVA331. The purpose of this project was to determine if it was possible to reduce the latency on devices with Windows 10 to what is possible on an iOS device. The reason behind this research is that Windows 10 has come with an API that supports low latency sounds. This study was made on an iPhone 4S, iPhone 6, Nokia Lumia 720 and a Nokia Lumia 920 with a contact microphone that was put on the device. The latency was measured 50 times per version of an application implemented for both operating systems. The latency could be measured between the point where the surface is touched and and the point where sound is audible, using the microphone and the audio processing software Audacity. The readings proved that iOS is still a lot faster than Windows 10 and that Windows 10 is way above the accepted audio processing limit. Further research showed that the Windows 10 reading results were caused by the Lumia devices long input latency. User tests were made on 10 individuals with the response that the latency on the Windows 10 devices was a lot longer than the iOS devices. The conclusion was that the Lumia devices used in this study were not suitable for responsive sound applications but that Windows 10 devices with lower input latency that are better suited and that new readings should be done to determine if this is the case.

  • 15.
    Ahmadzadeh, Farzaneh
    Islamic Azad University, Iran.
    Diagnosing the Cause and Its Timing of Changes in Multivariate Process Mean Vector From Quality Control Charts Using Artificial Neural Network2011In: World Academy of Science, Engineering and Technology: An International Journal of Science, Engineering and Technology, ISSN 2010-376X, E-ISSN 2070-3740, Vol. 5, no 6, p. 212-217Article in journal (Refereed)
    Abstract [en]

    Quality control charts are very effective in detecting out of control signals but when a control chart signals an out of control condition of the process mean, searching for a special cause in the vicinity of the signal time would not always lead to prompt identification of the source(s) of the out of control condition as the change point in the process parameter(s) is usually different from the signal time. It is very important to manufacturer to determine at what point and which parameters in the past caused the signal. Early warning of process change would expedite the search for the special causes and enhance quality at lower cost. In this paper the quality variables under investigation are assumed to follow a multivariate normal distribution with known means and variance-covariance matrix and the process means after one step change remain at the new level until the special cause is being identified and removed, also it is supposed that only one variable could be changed at the same time. This research applies artificial neural network (ANN) to identify the time the change occurred and the parameter which caused the change or shift. The performance of the approach was assessed through a computer simulation experiment. The results show that neural network performs effectively and equally well for the whole shift magnitude which has been considered.

  • 16.
    Ahmadzadeh, Farzaneh
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Multi criteria decision making with Evidential Reasoning under uncertainty2016In: IEEE International Conference on Industrial Engineering and Engineering Management, 2016, p. 1534-1538Conference paper (Refereed)
    Abstract [en]

    Many decision problems have more than one objective that need to be dealt with simultaneously. Moreover, because of the qualitative nature of the most of real world problem it is an inevitable activity and very important to interpret and present the uncertain information for making effective decision. The Evidential Reasoning (ER) approach which is one of the latest development within multi criteria decision making (MCDM) seems to be the best fit to synthesize both qualitative and quantitative data under uncertainty. To support this claim, two case studies were tested to illustrate the application of ER for prioritization and ranking of decision alternative to support decision process even with uncertain information. The importance of having a better structured decision process is essential for the success of any organization, so it can be applied widely in most of real world problem dealing with making effective decision.

  • 17.
    Ahmadzadeh, Farzaneh
    et al.
    Luleå University of Technology, Sweden.
    Golshani Asl, Aliakbar
    Luleå University of Technology, Sweden.
    Risk Prioritization Based on Health, Safety and Environmental Factors by Using Fuzzy FMEA2013In: International Journal of Mining, Metallurgy & Mechanical Engineering, ISSN 2320-4052, Vol. 1, no 4, p. 233-237Article in journal (Refereed)
    Abstract [en]

    Failure Mode and Effects Analysis is assessing technique which relies to the rule of preventing failure, which is used to identify potential hazards. This method is used with minimum risks to predict the problems and deficits in design stage or development of the processes and services in organizations. The methods main principal is based on multiplying three main parameters: severity, occurrence, detection. This method with all the advantages still has minor disadvantages that in this paper attempts has been made to eliminate these deficiencies by fuzzification. Results show that fuzzy FMEA will enables us to evaluate situations correctly and precisely.

  • 18.
    Ahmadzadeh, Farzaneh
    et al.
    Luleå University of Technology, Luleå, Sweden .
    Lundberg, J.
    Luleå University of Technology, Luleå, Sweden .
    Remaining useful life prediction of grinding mill liners using an artificial neural network2013In: Minerals Engineering, ISSN 0892-6875, E-ISSN 1872-9444, Vol. 53, p. 1-8Article in journal (Refereed)
    Abstract [en]

    Knowing the remaining useful life of grinding mill liners would greatly facilitate maintenance decisions. Now, a mill must be stopped periodically so that the maintenance engineer can enter, measure the liners' wear, and make the appropriate maintenance decision. As mill stoppage leads to heavy production losses, the main aim of this study is to develop a method which predicts the remaining useful life of the liners, without needing to stop the mill. Because of the proven ability of artificial neural networks (ANNs) to recognize complex relationships between input and output variables, as well as its adaptive and parallel information-processing structure, an ANN has been designed based on the various process parameters which influence wear of the liners. The process parameters were considered as inputs while remaining height and remaining life of the liners were outputs. The results show remarkably high degree of correlation between the input and output variables. The performance of the neural network model is very consistent for data used for training (seen) and testing (unseen).

  • 19.
    Ahmadzadeh, Farzaneh
    et al.
    Luleå University of Technology, Sweden.
    Lundberg, Jan
    Luleå University of Technology, Sweden.
    Application of multi regressive linear model and neural network for wear prediction of grinding mill liners2013In: International Journal of Advanced Computer Sciences and Applications, ISSN 2158-107X, E-ISSN 2156-5570, Vol. 4, no 5, p. 52-58Article in journal (Refereed)
    Abstract [en]

    The liner of an ore grinding mill is a critical component in the grinding process, necessary for both high metal recovery and shell protection. From an economic point of view, it is important to keep mill liners in operation as long as possible, minimising the downtime for maintenance or repair. Therefore, predicting their wear is crucial. This paper tests different methods of predicting wear in the context of remaining height and remaining life of the liners. The key concern is to make decisions on replacement and maintenance without stopping the mill for extra inspection as this leads to financial savings. The paper applies linear multiple regression and artificial neural networks (ANN) techniques to determine the most suitable methodology for predicting wear. The advantages of the ANN model over the traditional approach of multiple regression analysis include its high accuracy.

  • 20.
    Alayón, C.
    et al.
    School of Engineering, Jönköping University, Sweden.
    Säfsten, K.
    School of Engineering, Jönköping University, Sweden.
    Johansson, Glenn
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. School of Engineering, Jönköping University, Sweden.
    Conceptual sustainable production principles in practice: Do they reflect what companies do?2017In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 141, p. 693-701Article in journal (Refereed)
    Abstract [en]

    A common understanding of sustainable production principles and the identification of sustainable manufacturing practices among practitioners are key starting points in studying how manufacturers are making their operations more sustainable. However, there is a lack of insight in the literature connecting conceptual sustainable production principles, and the practices reflecting these principles. Using semi-structured interviews founded on the sustainable production principles posed by the Lowell Center for Sustainable Production, this paper presents an outlook of how companies in different industries carry out manufacturing practices related to the sustainability production principles. Results showed that the majority of sustainable manufacturing practices remain strongly centered on the environmental dimension of sustainability, with the greatest number of practices emanating from principles concerning energy and material conservation, and waste management. Similarly, reactive sustainable manufacturing practices prevailed over proactive sustainable manufacturing practices, as most of the practices aimed to comply with regulatory and market pressures. Quality and environmental management systems were acknowledged as important tools for putting sustainable production principles into practice; while Swedish environmental and social regulations were found to drive sustainable manufacturing practices. This study connects sustainable production principles with sustainable manufacturing practices and opens the way for further studies on a global or sector-specific scale.

  • 21.
    Al-Chalabi, H
    et al.
    Luleå University of Technology, Luleå, Sweden.
    Ahmadzadeh, Farzaneh
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Lundberg, J.
    Luleå University of Technology, Luleå, Sweden.
    Ghodrati, B.
    Luleå University of Technology, Luleå, Sweden.
    Economic lifetime prediction of a mining drilling machine using an artificial neural network2014In: International Journal of Mining, Reclamation and Environment, ISSN 1748-0930, E-ISSN 1748-0949, Vol. 28, no 5, p. 311-322Article in journal (Refereed)
    Abstract [en]

    This study develops models for predicting the economic lifetime of drilling machines used in mining. It uses three cases, each represented by a MATLAB code, to develop an optimisation model. The resulting ORT is fed as input to an artificial neural network (ANN) and the results translated into a relatively simple equation. The study finds that increasing the purchase price and decreasing the operating and maintenance costs will increase a machine's ORT linearly. Decreased maintenance cost has the largest impact on ORT, followed by increased purchase price and decreased operating cost. The ANN method gives a series of basic weight and response functions which can be made available to any engineer without the use of complicated software. It also helps decision-makers determine the best time economically to replace an old machine with a new one; thus, it can be extended to more general applications in the mining industry.

  • 22.
    Alt, Mattheus
    Mälardalen University, School of Innovation, Design and Engineering.
    Battery Connector - Examensarbete, Produktutveckling - konstruktion2013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Examensarbetet är utfört inom produktutveckling – konstruktion och omfattar 15 högskolepoäng. Arbetet utfördes på halvtid under perioden januari – juni 2013. Examensarbetet utfördes för       OJOP Sweden AB i Eskilstuna av en student på Mälardalens Högskola. Examensarbetet startades den 6/1 – 2013 vid ett uppstartsmöte då uppdraget togs emot av OJOP Sweden AB´s ägare Anders Larsson. Uppdraget var att konstruera om eller konstruera en produkt med samma huvudegenskaper som företagets batterikontakt QuickPower. Detta för att reducera tillverkningskostnaderna som upplevdes för höga från företagets sida. Definitionen av problemet gjordes genom att undersöka den befintliga produkten och dess konkurrenter men också andra föremål som fäster på olika sätt. Undersökningarna resulterade i kunskap om hur problemet tidigare lösts och gav inspiration till en mängd idéer som bearbetades mentalt vilket ledde till skisser.  De olika skisserna sågs redan från början som potentiella koncept och redovisades för OJOP Sweden AB som fick utrymme att ge respons på koncepten. Ett koncept som innan redovisningen visat sig vara det bästa i både Pugh´s matris och QFD valdes gemensamt ut och fortsattes med. Det gjordes en enkel prototyp av det framtagna konceptet vilket bevisade en mycket bra funktionsduglighet. Med detta noterat och testat gjordes CAD-modeller som utgick ifrån prototypens dimensioner. Den slutgiltiga konstruktionen består av 6 (gånger två) komponenter, en huvudkomponent (spiralfäste), en kabelplatta, två plastkåpor och två skruvar. Dessa bearbetas på olika sätt och monteras samman för att vara redo att användas när kunden plockar dessa ur förpackningen. I jämförelse med den nuvarande produkten QuickPower håller sig resultatet på en nivå som matchar QP. En nackdel är att den inte fäster lika hårt som QP men resultatets enkla användning och resursbesparing höjer produkten.

  • 23.
    Andersson, Anna
    Mälardalen University, Department of Innovation, Design and Product Development.
    A framework supporting the collaboration between the logistics- and the product development process2007Licentiate thesis, comprehensive summary (Other scientific)
    Abstract [en]

    In the competitive environment of today’s global markets, the demands of customers are increasing. They expect to get the best product at the lowest price with immediate availability. Logistics, including transportation, inventory maintenance, order processing, purchasing, warehousing, materials handling, packaging, customer service standards, and product scheduling must continuously be developed to meet the challenges of the market. The globalization, with longer distances to customers and suppliers, and the progressing trend of outsourcing are examples of why the importance of logistics has increased over the last few years.

    A considerable part of the final product cost is frozen during the early product development phases. In the early phases of the product development process, the cost of making design changes is low compared to making changes later in the product development process. The product development decisions made in the early phases of the product development process have considerable impact on future manufacturing and logistics activities as well.

    The objective of this research project is to develop a framework supporting the collaboration between the logistics- and the product development process. To do this, it has been essential to analyze which parameters influence the efficiency of the logistics process and the interface between the logistics- and the product development process. Also, to investigate how the logistics department can be integrated earlier in the product development process has been of interest. This has been done through both a theoretical review and also through a number of case studies.

    The result and conclusion of this project is a framework that gives support for what to focus on, how to collaborate, in which phases collaboration is meaningful, and which persons need to be involved in the different product development phases. Working as the framework suggests will, hopefully, give closer collaboration between the logistics- and the product development process than without this supportive framework. The expectation of the collaboration is an earlier integration of the logistics department in the product development process and through this influence and increase the efficiency of the logistics process.

  • 24.
    Andersson, Anna
    Mälardalen University, Department of Innovation, Design and Product Development.
    The interface between the logistics and the product development process2005In: Proceedings of the 14th international conference on management of technology, 2005Conference paper (Other academic)
  • 25.
    Andersson, Carin H.
    et al.
    Lund University, Lund, Sweden.
    Bellgran, Monica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    On the complexity of using performance measures: Enhancing sustained production improvement capability by combining OEE and productivity2015In: Journal of manufacturing systems, ISSN 0278-6125, E-ISSN 1878-6642, Vol. 35, p. 144-154Article in journal (Refereed)
    Abstract [en]

    The global speed of change within the manufacturing industry forces companies to constantly improve production performance. In that effort, performance measures are critical for driving and managing production improvements. Two of the most commonly used measures in operations are productivity and overall equipment efficiency (OEE). However, the potential of using these measures as improvement drivers is not fully utilized in industry today due, for example, to ambiguities in definitions and their interpretation. A study of available theory indicates a gap between these implications from a theoretical perspective vs. the industrial perspective. Bridging this theory-practice gap implies great potential for competitiveness and growth in manufacturing, since the latent production capacity that could be utilized is tremendous. Even if a high degree of complexity in definition and calculation when applied in operational conditions might be perceived, this paper will show that a systematically used combined set of OEE and productivity measures can successfully drive production improvements. Also, two new productivity measures for driving improvements at the shop floor level are proposed. The empirical findings are based on a two-year case study within a manufacturing company in the automotive industry using an interactive research approach. 

  • 26.
    Andersson, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Avgerinou, M
    Mälardalen University, School of Innovation, Design and Engineering.
    Who am I Online-Portraits of Online Teachers from Sweden and the USA2005Conference paper (Refereed)
  • 27.
    Andersson, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Pettersson, Rune
    Spinillo, C
    How to Merge Theory and Practice in Information Design? Educaraional and Research Perspectives in Visual Literacy2005Conference paper (Refereed)
  • 28.
    Andersson, Jennie
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Lindell, Rikard
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    It Could Just as Well Have Been in Greek:: Experiences from Introducing Code as a Design Material to Exhibition Design Students2016In: TEI '16 Proceedings of the TEI '16: Tenth International Conference on Tangible, Embedded, and Embodied Interaction Pages 126-132, EINDHOVEN, Netherlands: ACM , 2016, p. 126-132Conference paper (Refereed)
    Abstract [en]

    This paper discusses the experience and learning from introducing programming in a museum exhibition design course. Thirty-seven information design students from Sweden, with no previous experience in programming, participated in the course in 2014 and 2015. The students' tasks were to create interactive exhibition stations at a county museum in five weeks. We introduced Arduino and Processing programming in the course to enlarge the information design students' repertoire and to find ways to develop the interactive aspects of the exhibition medium. We aim to identify and discuss challenges and strengths when introducing code as design material in design education. The education of future exhibition designers is an important matter relevant the TEI community.

  • 29. Andersson, Jonas
    et al.
    Lönnermark, Anders
    SP Brandteknik.Sweden.
    External conditions have a significant impact on the air flow in tunnels using transverse ventilation for smoke extraction2012Conference paper (Other academic)
    Abstract [en]

    In 2008 the City of Stockholm Traffic Administration conducted a series of full scale tests, with heat and smoke generation equivalent to that from a fire in a small car, in one of their urban tunnels with transverse ventilation. The primary goal of the tests was to verify how the ventilation system worked and also to provide an opportunity for the local fire brigade and consultants in this field to see what one could expect in a similar situation. A total of four different tests were carried out at two different locations in the tunnel. Methanol was chosen as fuel and the smoke was produced from smoke machines. The ventilation conditions were set according to a pre-set function to simulate both low and high traffic conditions and the fire ventilation was activated 10 minutes after ignition of the simulated car fire. The result of the tests illustrated a variety of phenomena where the external conditions and the general design of the tunnel had a significant impact on the air flow. These aspects determined the direction of airflow in the tunnel regardless of the pre-set ventilation settings. The ventilation settings for the different traffic cases had a significant impact on the stratification of smoke in the event of a fire.

  • 30.
    Andersson, Kristoffer
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Olsson, Emelie
    Mälardalen University, School of Innovation, Design and Engineering.
    Meningsförändrande innovationer inom industrirobotbranschen: En explorativ fallstudie2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this thesis the subject innovation and the change of meaning is in focus. The purpose of the study is to present a new dimension of innovation as a change of meaning together with the cases we’ve studied. It is discussed throughout the article if theories of perception and association can affect the organization and its ability to create meaning-changing innovations. The industrial robotics is a market in need of, perhaps, if not other markets but of finding new ground that results in the change of meaning. What happens when you stand at the intersection of main areas in the field of innovation? Is it possible that meaningful change can be found here, amongst radical innovation and industrial robotic arms and it’s technology? Our methods were interviews and prior research complementing the cases we’ve presented. We want to show how meaning can change various dimensions. Together with a perceptual theory and an innovation theory we’ve found out that meaning and innovation can go hand in hand.

  • 31.
    Andersson Schaeffer, Jennie
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. IPR (Innovation and Product Realisation).
    ‘Company-selfies’ Boundary Negotiating Artefacts in Group Discussions on Innovation2015In: The Proceedings of The XXVI ISPIM Conference 2015 Budapest, Hungary - 14-17 June 2015, Budapest, Hungary, 2015Conference paper (Refereed)
    Abstract [en]

    In this paper, one practice-oriented approach to incorporate nonexperts in early stages of innovation work is presented and analysed: the method of photo-based group discussions on innovation. The result is based on studies in 7 different organizations during 2013-2014. The method was developed as a response to a current innovation management problem in manufacturing companies in mid-Sweden, i.e. the problem how to enable all employees to use their talent and potential in relation to innovation initiatives on all levels. The results show how the photographs were used by the participants to negotiate different interpretations of innovation. The photographs were used for self-reflection, borrowing, inclusion and denominating actions. The results contribute to the theoretical understanding in the innovation management community of photographs in innovation processes. It does so by the introduction of the notion 'company-selfie' and the analyse of the photograph as a boundary negotiation artefact in groupdiscussion on innovation.

  • 32.
    Andersson Schaeffer, Jennie
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. IS (Embedded Systems).
    Lindell, Rikard
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. IS (Embedded Systems).
    Design to engage?: Embodied information in control rooms2015In: Vision Plus 2015 Conference VisionPlus, Birmingham City , United Kingdom, 2015Conference paper (Refereed)
    Abstract [en]

    Information and the design of information effect the situation in control rooms for automated industrial processes. The design conveys to the operators the state and changes of state of the process. According to the common view among control room equipment developers, issues for design in highly automated control rooms, include the operators likely ignoring information, being bored and are not noticing variations until the variation triggers an alarm. Such problems can have economic and environmental consequences. In the highly automated control rooms of the future, these risks of can be dealt with from various point of view. The current thinking behind human-computer interaction (HCI) design is engineering the ‘human factor’ instead of understanding the human situation. Visionary areas in computing might convert HCI product development processes to design-driven processes that focus on user experience. The TAIPA research project presented in this paper focuses on the user experience in two control rooms. Based on the results and previous research, we examine how the information might be given a tangible and ambient design to engage operators. This paper presents illustrations of aspects of future design for the control room.

  • 33.
    Andersson Schaeffer, Jennie
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. IS (Embedded Systems).
    Lindell, Rikard
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. IS (Embedded Systems).
    Emotions in design: Considering user experience for tangible and ambient interaction in control rooms2016In: Information Design Journal, ISSN 0142-5471, E-ISSN 1569-979X, Vol. 22, no 1, p. 19-31Article in journal (Refereed)
    Abstract [en]

    Operators in highly automated control rooms are said to be constantly bored, and boredom is an emotional state that can have economic and environmental consequences. This article presents insights into users’ emotions and their role in the design of control rooms. The study focused on the users’ experience in two control rooms, where operators explored their emotions in relation to a situation, object, place, or action. Based on the results of the study and previous research, this article examines control room’s information design and makes recommendations on how it might be given a tangible and ambient form.

  • 34.
    Ankarstrand, Christin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Egenor Lohman, Johanna
    Mälardalen University, School of Innovation, Design and Engineering.
    Kompetensutveckling för ökad innovationsförmåga i småföretag2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Over the last couple of years an increased interest of learning in organizations and competence development has been noticed. Many researchers and decitionmakers are of the opinion that this is an important part of productivity, competitiveness and innovation. (Kock, Gill & Ellström, 2008) Innovations are usually the fruit of several individuals creative ability, their cooperation, experiences and their additional knowledge (Leonard & Swap, 1999). 96.3% of the companies in Sweden are small business.(www.scb.se) Small business and entrepreneurs are seen as especially importance of employment and the growth of the economy in spite of many initiatives there is a lack of solutions in the society that are well adjusted to the specific needs and prerequisites (http://www.regeringen.se). This essay is a qualitative study consisting of semi structured interviews with the purpose of exanimating a project of competence development with the aim of supporting small business development through enabling interaction and competence development. Hansson (2005) describes competence development as an objective for providing. Dalin (1997) and Hansson (2005) describe interaction as an aspect of competence. On order for small business to be able to thrive external relations with other businesses with the ability to support the company in its development should be developed. In order for small businesses to be more successful and profitable external resources are needed. (Street & Ann-Frances, 2007) During the interviews it was revealed that the respondents experiences of interaction during the course of the project and the experience of the possibilities for future interaction was parted. Some of the respondents expresses that the interaction to some extent has strengthened existing bonds of interaction by enlarged insight in the other companies business. According to half of the respondents the specific activities of competence development witch the respondent was in need of is experienced as the most important contribution to the business.

  • 35.
    Antonsson, Sandra
    Mälardalen University, School of Innovation, Design and Engineering.
    A different Africa: Spatial information design for a safer refugee settlement2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this thesis was to explore the spatiality’s affect on refugee’s sense of safety in the Osire refugee settlement in Namibia. The gathered empirics together with previous research and theories should lead to a design for a spatial information system. The system should contribute to peoples’ understanding of their environments’ whole structure as well as showing the way to the health centre and the police station, thus increasing their sense of psychological and physical safety. A wish was also to breathe life into the point of intersection of spatial information design and human science.

    The methods used to enable this were first and foremost a field study in the settlement to experience and acquire first-hand information. In addition observation, introspection and several interviews were conducted.

    As a result I established safety to be an issue that could be solved with spatial design. Refugees expressed that not knowing your environment or finding your way leaves you scared, uncomfortable and confused. With the use of a spatial information system safety can literally be created, as demonstrated in the design proposal. The conclusion is that much could be done to spatially solve complex issues as long as it’s addressed from that perspective.

  • 36.
    Appelquist, Angelica
    Mälardalen University, School of Innovation, Design and Engineering.
     2013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • 37.
    Ashjaei, Seyed Mohammad Hossein
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Bengtsson, Marcus
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation. IS (Embedded Systems).
    Enhancing Smart Maintenance Management Using Fog Computing Technology2017In: 2017 International Conference on Industrial Engineering and Engineering Management IEEM, 2017, p. 1561-1565Conference paper (Refereed)
    Abstract [en]

    In order for factories to stay competitive in the current open global market, there should be efforts to put on optimizing the value stream of producing goods. Within this context, Industrial Internet of Things (IIoT) has been emerged as a technology aiming at achieving high productivity performance in manufacturing. A smart manufacturing approach also requires a smart maintenance management as it plays a crucial role in securing the productivity. IIoT applications are traditionally completed by the cloud computing technology to serve the required services. In this paper, we argue that maintenance processes have requirements that cannot be accomplished by solely the cloud computing technology. We identify several of these requirements. Then, we propose a platform using the fog computing technology, as a recently raised technology in IIoT, to enhance the smart maintenance management. We also discuss the ability of the platform in fulfilling the identified requirements.

  • 38.
    Asztalos Morell, Ildikó
    Mälardalen University, School of Health, Care and Social Welfare, Health and Welfare.
    Utmaningar och möjligheter för digitaliserat arbete och organisering – delstudie 6: Arbetsvillkor, kunskapsöverföring och innovation2017Report (Other academic)
    Abstract [sv]

    En av utgångspunkterna för denna studie är att teknik förändrar arbetets villkor, samtidigt som tekniken i sig är inte deterministisk. Sättet varpå teknik implementeras bygger på social organisering. Arbetets sociala villkor är drivande för utvecklingen av tekniken såväl som för hur tekniken utnyttjas. Denna studie undersökte olika samband mellan teknologisk utveckling och hur utnyttjandet och utvecklingen av teknik organiseras inom ett metall­industriföretag. För det första undersöktes styrning, handlingsutrymme, innovation och kunskapsöverföring (delstudie 6 inom DAO-projektet). Vidare undersöktes även förändrade kunskapskrav, flexibilitet, kompetensförsörjning och mångfald (delstudie 7 inom DAO projektet). Digitalisering av styrning (IT) och auto­matisering av maskiner (OT) är två aspekter av teknologiska förändringar som driver utvecklingen framåt. Genom att särskilja fem olika sätt för hur dessa förändringar kan sammankopplas har jag kunnat särskilja hur arbetets villkor har förändrats.

    • När det gäller traditionell teknologi, alltså utan IT och OT, besitter operatörerna unika kunskaper som är svåra att standardisera. Utvecklingen av OT sker genom att dessa kunskaper överförs till standardiserade enheter. Operatörernas roll omvandlas till övervakning av maskiner som körs av OT-system.
    • Då IT-styrning kopplas till produktionen påläggs ansvar på operatörerna att följa dessa IT-system och därigenom anpassa den egna produktionens styrning. Man hämtar order från IT-system och återkopplar till systemet när man har arbetat färdigt en order. IT-systemet dokumenterar tidsåtgången och samlar information om produktionen från det som operatörerna förväntas mata in.
    • Då IT kopplas till OT förväntas det att misstag som uppstår p.g.a. den ”mänskliga faktorn” fasas ut. Operatörernas roll förvandlas återigen; de övervakar då både OT-opererade maskiner och IT-system som styr produktionen. Samtidigt förväntas operatörer kunna förstå hur deras fysiska maskiner fungerar för rutinmässigt underhåll och körning då IT ”krånglar”. Därmed blir operatörernas roll mindre fysiskt belastande, men också mer komplex som följd av över­vakningen av maskiner.
    • Då komplexa produktionsprocesser byggs ihop blir operatörers arbete mer direkt kopplat till andra operatörers arbeten. Teamsamverkan och stöd från med­arbetarna ökar i betydelse.
  • 39.
    Axelsson, Jakob
    Volvo Car Corporation, Sweden.
    Applying Design for Six Sigma to the Concept Development of an Automotive HMI2008In: SAE World Congress, paper No. 2008-01-0353, Detroit, Michigan, 2008Conference paper (Refereed)
    Abstract [en]

    Six Sigma is a development methodology which

    emphasizes objective evaluations based on facts and

    measurements. However, for some problems the

    information is inherently subjective, with large individual

    variations. Also, in the early development phases, it may

    be difficult to define measurable metrics that correctly

    capture the important qualities. The vehicle HMI is a

    good example of such an application. In this paper, we

    present experiences of applying Design for Six Sigma

    methods to the early development phases of an

    automotive HMI. The focus of the paper is on how to

    handle uncertainties and vague subjective information.

  • 40.
    Axelsson, Jakob
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Fröberg, J.
    RISE Research Institutes of Sweden, Västerås, Sweden.
    Eriksson, P.
    Volvo Construction Equipment AB, Eskilstuna, Sweden.
    Towards a system-of-systems for improved road construction efficiency using lean and industry 4.02018In: 2018 13th System of Systems Engineering Conference, SoSE 2018, Institute of Electrical and Electronics Engineers Inc. , 2018, p. 576-582Conference paper (Refereed)
    Abstract [en]

    Road construction is a very large business segment, consuming enormous public funding every year and with significant environmental impacts. However, the rate of efficiency improvement during the last few decades has been negligible, whereas other industries, such as manufacturing, have seen very large improvements by applying automation and Leanbased flow optimization across the production system. In this paper, we outline a system-of-systems concept for road construction which applies similar principles as have previously proved successful in other industries. The paper identifies efficiency attributes and wastes in current practices, which lead to a conceptual solution that focuses on improved coordination of working machines. Technical elements from Industry 4.0 are considered as potential building blocks in this concept, identifying similarities and differences between the construction domain and other industries. Finally, challenges are identified, in particular within knowledge representation and information management.

  • 41.
    Axelsson, Tommy
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Rinne, Christian
    Mälardalen University, School of Innovation, Design and Engineering.
    Förbättra leveranssäkerhet mot kund: En utredning för att göra tillverkningsprocessen enklare, rakare och stabilare2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Det är vanligt att Svenska företag har leveranssäkerhetskrav på sina underleverantörer. Det är normalt att företag får problem att leverera varorna i tid till sina kunder ibland, vilket kan medföra stor ekonomisk förlust för företaget. Denna rapport är resultatet av ett examensarbete vid Mälardalens Högskola som utförts på uppdrag av International Aluminium Casting AB i Eskilstuna.Syftet med denna rapport är att se över IAC:s fabrik i Eskilstuna ute på Vilsta, för att kartlägga deras tillverkningsprocess och identifiera problemområden i tillverkningen som kan ha direkta effekter på leveranssäkerheten.För att uppnå syftet med arbetet utfördes först en litteraturstudie inom området effektiv produktion, följt av en empirisk studie som utfördes i fabriken på företaget. Detta ger arbetet en hög betryggande anknytning om hur verkligheten ser ut och ger innehållet en bekräftelse emot teorin inom området. En noggrann nulägesbeskrivning utfördes för att få en konkret bild över hur tillverkningsprocessen gick till och för att kunna se vart i processen det finns problem, vilket skulle kunna påverka företagets förmåga att leverera sina varor i tid till kunden. Arbetet resulterar till sist i tre koncept som är förslag på hur företaget skulle kunna öka sin leveranssäkerhet och få en effektivare tillverkningsprocess.En problemidentifiering genomfördes för att se över vart företaget skulle kunna tänkas rikta sina framtida utvecklingsmöjligheter för effektivisera sin tillverkning för att få en starkare leveranssäkerhet. Problemidentifieringen utfördes i flera steg, där företaget ensamma först fick identifiera sin syn på vilka problem dem hade, följt av författarnas uppfattningar baserade på intervjuer och empiriska studier. Till sist intervjuades externa konsulter, varav en fick göra studiebesök på företaget för att få en professionell validering av företaget och stötta upp föregående uttalande. Detta resulterade i många uppfattningar och synvinklar på saker som företaget kan utveckla och växa av.Rapporten avslutas med en diskussion om resultatet och vilka studier som inte hanns med och förslag på områden av framtida utveckling av detta arbete.

  • 42.
    Azeem, Syed Muhammad Waqar
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Aljawaheri, Mostafa
    Mälardalen University, School of Innovation, Design and Engineering.
    Analysis of Implementation of RFID Technology in Retail Industry2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In today’s world cost optimization and better service are becoming the essential components ofthe retail supply chain. The thesis tries to contribute to the understanding of the RFIDtechnology in the retail industry. The basic concepts and the research contribution of the variousauthors are briefed in the theoretical framework made for a better understanding to the readers.After gained the relevant theoretical knowledge, the interviews were conducted with the RFIDexpert and some retailers. The empirical data collected from the interviews and surveys areprojected. With the empirical results and the relevant theoretical results, an analysis is madewhich explicitly gives the basis of implementation of RFID in the retail supply chain and itsassociated practical scenarios. Another outcome of the thesis is the result of the checkoutanalysis of the Willys retail store, and researchers try to show the potential benefit of adoptingthe RFID technology at item level at the point of sales, also cost estimation and savings areshown in the analysis. In a bird’s eye view, this research thesis work is a contribution to theimplementation of RFID technology in the retail industry and its integration among the differententities of retail supply chain and improves the overall performance of supply chain and providea framework for RFID implementation for the case company.

  • 43.
    Babic, Ivan
    Mälardalen University, School of Innovation, Design and Engineering.
    Siktanalys och förbättringsförslag för dumper2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this assignment was to analyse the visibility problems that occur for the operator of Volvos A40 hauler and generate suggestions for improvement. A modified product development process based on Ullmans model was used to create basic requirements for the solution and generate concepts with said requirements. The concepts were then evaluated and the highest scoring concept, which included a camera, was chosen to develop. The results also include calculations of the cameras desired focal length and object range, to achieve the defined field of view. An analysis of the result and project in general are provided after that, as well as the conclusions and recommendations for further research.

  • 44.
    BACKHAUS, PATRICK
    et al.
    Mälardalen University, School of Innovation, Design and Engineering. Paderborn University, Germany.
    Dodig-Crnkovic, Gordana
    Mälardalen University, School of Innovation, Design and Engineering.
    Wikileaks and Ethics of Whistle Blowing2011Conference paper (Refereed)
  • 45.
    Backström, Tomas
    Mälardalen University, School of Innovation, Design and Engineering.
    Using energy landscape to understand resilience2007Conference paper (Refereed)
  • 46.
    Backström, Tomas
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Söderberg, Tobias
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Group creativity and work process structure2015In: The XXVI ISPIM Innovation Conference ISPIM'15, 2015Conference paper (Refereed)
    Abstract [en]

    Creativity in work life typically includes several people, thus there is a need to understand how people interact and support each other in creative group processes. Is there, for example, a need for a structure of the work process of a creative group? This paper is about the possibility to enable self-organisation and if an attempt to do so can increase group creativity. In the experiment of this study half of the groups were given a work process structured to enable self-organisation. The degree of self-organisation was measured with a questionnaire and the idea flow was observed and analysed. Ideas were significantly more often observed and used by other group members in the more self-organised groups, and the two best solutions of the task were find among them. A work process structured according to the six delta model seems to increase self-organization as well as creativity of a group.

  • 47.
    Backström, Tomas
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Söderberg, Tobias
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Self-organisation and group creativity2016In: The Journal of Creativity and Business Innovation, ISSN 2351-6186, no 2, p. 65-79Article in journal (Refereed)
    Abstract [en]

    The team has become the basic organisational unit of development and innovation work and an understanding of creativity at the collective level is crucial for long-term sustainability. This article takes a process perspective and understands group creativity as emerging from the interaction among group members. It is about the possibility to enable the emergence of selforganisation, thereby increasing group creativity. This paper presents an experiment where four out of eight randomly formed groups of students were given a work order structured according to the group process model “GroPro”. In groups using the GroPro ideas were significantly more often promoted, observed and used by other group members, and used in the final solution. Further, the two best solutions and the more creative solutions of the task were found among the GroPro groups. A work process structured according to the GroPro model seems to increase self-organisation as well as the creativity of the group. Further, the group process is shown to be more important for group creativity than the individual creativity of the group members. Our results encourage more focus on the group process by both academia and practitioners.

  • 48.
    Balador, Ali
    et al.
    Universitat Politecnica de Valencia, Spain.
    Böhm, Annette
    Halmstad University, Sweden.
    Uhlemann, Elisabeth
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Calafate, Carlos T.
    Universitat Politecnica de Valencia, Spain.
    Cano, Juan-Carlos
    Universitat Politecnica de Valencia, Spain.
    A reliable token-based MAC protocol for delay sensitive platooning applications2016In: 2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings, Boston, MA, United States, 2016, p. Article number 7390813-Conference paper (Refereed)
    Abstract [en]

    Platooning is both a challenging and rewarding application. Challenging since strict timing and reliability requirements are imposed by the distributed control system required to operate the platoon. Rewarding since considerable fuel reductions are possible. As platooning takes place in a vehicular ad hoc network, the use of IEEE 802.11p is close to mandatory. However, the 802.11p medium access method suffers from packet collisions and random delays. Most ongoing research suggests using TDMA on top of 802.11p as a potential remedy. However, TDMA requires synchronization and is not very flexible if the beacon frequency needs to be updated, the number of platoon members changes, or if retransmissions for increased reliability are required. We therefore suggest a token-passing medium access method where the next token holder is selected based on beacon data age. This has the advantage of allowing beacons to be re-broadcasted in each beacon interval whenever time and bandwidth are available. We show that our token-based method is able to reduce the data age and considerably increase reliability considerably compared to pure 802.11p.

  • 49.
    Balaman, Ufuk
    et al.
    Hacettepe Univ, English Language Teaching, Fac Educ, Ankara, Turkey.
    Sert, Olcay
    Hacettepe Univ, English Language Teaching, Fac Educ, Ankara, Turkey.
    Development of L2 interactional resources for online collaborative task accomplishment2017In: Computer Assisted Language Learning, ISSN 0958-8221, E-ISSN 1744-3210, Vol. 30, no 7, p. 601-630Article in journal (Refereed)
    Abstract [en]

    Technology-mediated task environments have long been considered integral parts of L2 learning and teaching processes. However, the interactional resources that the learners deploy to complete tasks in these environments have remained largely unexplored due to an overall focus on task design and outcomes rather than task engagement processes. With this gap in mind, we set out to describe the emergence, development, and diversification of L2 (English) interactional resources oriented to task completion using conversation analysis for the examination of 13hours of screen-recorded online task-oriented interactions collected over 18 weeks. The focal tasks in the study have been designed as emergent information-gap tasks that require the participants to maintain progressivity by both displaying their own and converging with their co-participants’ dynamic knowledgeability for task completion purposes. A longitudinal investigation into task engagement processes has demonstrated that the participants fail to display their knowledge congruently and they repeatedly disrupt the progressivity of task-oriented interaction in earlier weeks. However, an observable diversification of interactional resources for collaborative task accomplishment has been recorded in later weeks, which demonstrates the development of interactional competence over time. These findings bring insights into interactional competence, epistemics, and CALL with special reference to technology-mediated TBLT.

  • 50.
    Balaman, Ufuk
    et al.
    Hacettepe Üniversitesi, Ankara, Turkey.
    Sert, Olcay
    Mälardalen University, School of Education, Culture and Communication, Educational Sciences and Mathematics. Hacettepe Üniversitesi, Ankara, Turkey.
    The coordination of online L2 interaction and orientations to task interface for epistemic progression2017In: Journal of Pragmatics, ISSN 0378-2166, E-ISSN 1879-1387, Vol. 115, p. 115-129Article in journal (Refereed)
    Abstract [en]

    The role of knowledge in social interaction has been a recent research concern across several fields and the emergence of epistemics as a concept to understand information exchanges has been facilitated mainly through conservation analytic investigations (Heritage, 2012a,b). Relative epistemic status of speakers (Heritage, 2012a) has appeared to be a layer in the multidimensional body of action and knowledge co-construction (Goodwin, 2013). Although the nature of knowledge exchange processes in mundane talk and learning settings has been described in a number of studies, such an understanding has been explored to a lesser extent in technology-mediated and online interactional environments. With this in mind,, we draw on multimodal conversation analysis to describe online video-based interactions based on a single case analysis that represents a larger corpus of 70 h of screen recordings. The findings reveal the incorporation of online interaction, screen orientations, and knowledge co-construction for task accomplishment purposes. The participants coordinate their interactions with their orientations to the task interface to enact epistemic progression, which consequently turns the interface into a layer, a semiotic field, and a screen-based resource in the course of knowledge co-construction. The results have important implications for research on online interaction and epistemics as well as for an understanding of coordination of multiple actions in geographically dispersed settings.

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