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  • Törnquist Krasemann, Johanna
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för datavetenskap.
    Rydergren, Clas
    Linköpings universitet, SWE.
    Passagerar-fokuserad hantering av störningar i den regionala tågtrafiken: En sammanställning av arbete och resultat från den svenska delen av TRANSFORM-projektet2019Rapport (Annet vitenskapelig)
    Abstract [sv]

    Bakgrund och syfte

    Informationstjänster för kollektivtrafikresenärer blir allt bättre, men vid störningar är det fortfarande mycket svårt som resenär att få tillräcklig och aktuell information om hur resan kommer att kunna fullföljas. För planerare och trafikledning är det också en enorm utmaning i att skapa robusta planer som medför flexibilitet i driften, att övervaka trafikläget och att styra systemet på ett proaktivt sätt som balanserar interna prioriteringar med resenärernas. Inom projektet har vi därför studerat två alternativa principer och metoder för att omplanera tågtrafiken vid störningar – där den ena är mer resenärsfokuserad och den andra mer trafiksystem-fokuserad.

    Metodik

    Den förstnämnda metoden inkluderar i omplaneringen av tågen vid störningar även regionala bussar. Metoden beaktar resandeutbyten och alternativa resvägar för att, om möjligt, minska resenärers försening genom att samordna tåg- och/eller bussanslutningar. Här används en matematisk modell som utvecklats i projektet och optimeringsproblemet löses med hjälp av kommersiell mjukvara, Gurobi. Vi använder även anonymiserad, filtrerad, resekortsdata för att modellera passagerarflöden och relevanta anslutningar. Den andra metoden omplanerar tågtrafiken utan hänsyn till annan kollektivtrafik och möjliggör en viktning (dvs. prioritering) av tåg med ett större antal avstigande resenärer. Här används en parallelliserad algoritm som på ett effektivt sätt ska kunna planera om tågen vid störningar baserat på ett antal kvalitetsindikatorer. Båda metoderna har tillämpats i datorbaserade experiment för störningarsscenarier på Blekinge Kustbana och anslutande banor.

    Resultat och slutsatser

    Resultaten från projektet visar på vikten av att utforma beräkningsstöd för tågtrafikledning som inkluderar flera olika målkriterier och kvalitetsindikatorer vid omplaneringen av tåg vid störningar. Vilka kriterier och indikatorer som är mest relevanta att fokusera på i den operativa driften är en bedömning som bör göras dels utifrån ett användarperspektiv, dels baserat på gällande lagstiftning inklusive aktuella operativa regler definierade i järnvägsnätsbeskrivningen för innevarande år.

     

    Preliminära resultaten från studierna visar även på möjligheterna med att samordna den regionala tåg- och busstrafiken i större utsträckning än vad som är praktiskt möjligt idag. Tillgången till data ökar samt olika mer eller mindre avancerade digitala hjälpmedel för resenärer såväl som för trafikledning föreslås och diskuteras av branschen och inom forskarsamhället, men hur man uppnår en effektiv hantering av störningar och säkerställer ändamålsenlig trafikinformation till resenärer är först och främst en organisatorisk fråga, snarare än en teknisk utmaning.

  • Maksimov, Yuliyan V.
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för datavetenskap. FHNW University of Applied Sciences and Arts Northwestern Switzerland School of Engineering Institute for Interactive Technologies.
    Fricker, Samuel A.
    FHNW University of Applied Sciences and Arts Northwestern Switzerland, CHF.
    Framework for Analysis of Multi-Party Collaboration2019Inngår i: 27th IEEE International Requirements Engineering Conference (RE 2019), IEEE Computer Society Digital Library, 2019Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In recent years, platforms have become important for allowing ecosystems to emerge that allow users to collaborate and create unprecedented forms of innovation. For the platform provider, the ecosystem represents a massive business opportunity if the platform succeeds to make the collaborations among the users value-creating and to facilitate trust. While the requirements flow for evolving existing ecosystems is understood, it is unclear how to analyse an ecosystem that is to be. In this paper, we draw on recent work on collaboration modelling in requirements engineering and propose an integrated framework for the analysis of multi-party collaboration that is to be supported by a platform. Drawing on a real-world case, we describe how the framework is applied and the results that have been obtained with it. The results indicate that the framework was useful to understand the ecosystem context for a planned platform in the domain of artificial intelligence, allowed identification of platform requirements and offered a basis to plan validation.

  • Ruvald, Ryan
    Prototyping for Product-Service Systems innovation: Insights from the construction equipment industry2019Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    To radically increase the value delivered to the customers in the construction industry a concerted effort is needed to develop solutions beyond incremental adjustments. Simply providing add-on services to existing products does not effectively create solutions with enough gains in core customer values. Designing and developing a product service system (PSS) through the adjustment or reconfiguration of existing elements is a challenge on its own, and adding the design of new elements serves to confound the process even further. By realigning all components of a PSS from inception to a function provides an opportunity to escape current product limitations and explore new solutions with potentially higher value. Designing a new PSS solution from scratch comes with added ambiguity in an expanded solution space.

    The aim of this thesis is to investigate early conceptual phases of PSS innovation within the domain of construction equipment manufacturing. The research included the development and testing of a prototyping method to foster customer co-creation and transdisciplinary design which are considered primary impact factors increasing the value of final PSS solutions.

    The work was performed in collaboration with a construction equipment manufacturer, conducting a demonstrator project on an electric and autonomous production site. The thesis first depicts how the prototyping method can be implemented to enable stakeholder insights that were previously not accessible through current practices. This leads to the testing of the method in a broader perspective to represent tangible and intangible elements in a way that facilitates concept design decisions in multi-disciplinary settings. The thesis concludes by exploring the limitations on current practices in relation to the adoption and potential use of the method.

  • Disputas: 2019-12-20 09:30 J1650 (Campus Gräsvik), Karlskrona
    Carlsson, Liesel
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för strategisk hållbar utveckling.
    Inviting Community into the Development of Globally Sustainable Food Systems2019Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Food systems and human diets contribute to unsustainable socioecological conditions, which in turn negatively affect human health. These driver-impact relationships span multiple scales, prompting international governance bodies, nations, and communities alike to grapple with solutions for a better food future. Collaborative action across scales and sectors is necessary; however, how communities can align contributions with efforts at broader scales is unclear.

    The aim of this research is to develop theoretical and procedural supports for community engagement in globally sustainable food systems (SFS), and to provide concrete results relevant to one case community.

    The community of nutrition and dietetics professionals was chosen as the case community given its history of engagement with SFS, its integration throughout food system sectors, and because dietary shifts have significant potential to contribute to SFS. Furthermore, the researcher’s position as a member of this community supported the case study work.

    The research uses transdisciplinary methods guided by the Framework for Strategic Sustainable Development (FSSD) and Community Development theory. The FSSD provides a concrete definition of sustainability and includes methodological supports for co-creation of sustainability transitions. Community Development theory supports participatory approaches and welcomes different knowledge cultures in such co-creation. The Delphi Inquiry method was used to facilitate data collection and community engagement. For measurement-specific elements of the research, causal loop diagrams (CLD) informed by the Cultural Adaptation Template (CAT) theory were used, and Critical Dietetics was used as a framework for dietetics-specific analysis.

    High level insights include that: (i) participatory and multidimensional approaches are important to facilitate community engagement in SFS development; (ii) objective parametres for defining sustainability are critical to guide concerted action and can provide an innovation space that invites creative and diverse solutions within; (iii) systems thinking and related tools help simplify the complexity of food systems without disregarding broader context, and support assessment in the absence of all data. Specifically in relation to the case community explored, insights include that, (i) integrating an SFS lens into existing roles and activities is important, because dietitians already work across sectors and scales, making them well positioned to contribute in diverse ways; (ii) a shared language based on transdisciplinary understandings of SFS is required; (iii) engaging in activities that facilitate SFS knowledge development within the profession, prior to integrating it into roles and activities, is an important first step; (iv) collaborative and reflexive approaches to continued knowledge development and practice are important, such that in the end sustainability becomes integrated into a cultural way of thinking about food.  

    Based on these insights, this dissertation outlines a procedure for collaborative community work for globally SFS. The procedure is adaptable to various community settings. The dissertation also provides specific guidance for how dietitians could utilise their strategic positions throughout food systems to contribute to SFS development.

  • Frank, Martin
    Volvo Construction Equipment AB.
    Connected Machinery - Enabling Automation2015Inngår i: 8th AVL International Commercial Powertrain Conference Proceedings (2015) / [ed] AVL List GmbH, SAE International, Graz, Austria: Society of Automotive Engineers, 2015, Vol. 8, s. 91-95, artikkel-id 4.3Konferansepaper (Fagfellevurdert)
    Abstract [en]

    With the increased demand on fuel efficiency andproductivity of the different construction equipmenttypes, the connection of the equipment’s subsystems, the connection between the different on sitemachines and the connection to the site managementgets more and more important. By analyzing thedifferent systems and the underlying requirements,several optimization possibilities arise with theconnection of the different data sources. It will beshown that the connection of the different system onmachine level as well as the connection betweenmachines will have a big impact on performance andefficiency of the systems and subsequently of themachine itself.

  • Bertoni, Alessandro
    Reverse Engineering Role Play to teach Systems Engineering2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    Engage the students in a three-stage reverse engineering role-play to increase their awareness of the importance of correctly using systems engineering methods, by experiencing them “in real life”.

  • Disputas: 2019-12-20 13:00 J1610, Karlskrona
    Tatipala, Sravan
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Sheet metal forming in the era of industry 4.0: using data and simulations to improve understanding, predictability and performance2019Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    A major issue within automotive Sheet Metal Forming (SMF) concerns ensuring desired output product quality and consistent process performance. This is fueled by complex physical phenomena, process fluctuations and complicated parameter correlations governing the dynamics of the production processes. The aim of the thesis is to provide a deeper understanding of the challenges and opportunities in this regard within automotive SMF. The research is conducted in collaboration with a global automotive manufacturer. 

    The research shows that systematic investigations using process simulation models allow exploration of the product-process parameter interdependencies and their influence on the output product quality. Furthermore, it is shown that incorporating in-line measured data within process simulation models enhance model prediction accuracy. In this regard, automating the data processing and model configuration tasks reduces the overall modelling effort.

    However, utilization of results from process simulations within a production line requires real-time computational performance. The research hence proposes the use of reduced process models derived from process simulations in combination with production data, i.e. a hybrid data- and model-based approach. Such a hybrid approach would benefit process performance by capturing the deviations present in the real process while also incorporating the enhanced process knowledge derived from process simulations. Bringing monitoring and control realms within the production process to interact synergistically would facilitate the realization of such a hybrid approach.

    The thesis presents a procedure for exploring the causal relationship between the product-process parameters and their influence on output product quality in addition to proposing an automated approach to process and configure in-line measured data for incorporation within process simulations. Furthermore, a framework for enhancing output product quality within automotive SMF is proposed. Based on the thesis findings, it can be concluded that in-line measured data combined with process simulations hold the potential to unveil the convoluted interplay of process parameters on the output product quality parameters.

  • Khamitova, Raisa
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för matematik och naturvetenskap.
    Ett aktivt och hållbart lärande i matematik2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Undvik att lära ut metoder som endast fungerar i speciella fall, utan lär hellre ut generella metoder. Det ger studenterna en mer hållbar grund att bygga vidare på i sina fortsatta studier.

  • Elovaara, Pirjo
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för teknik och estetik.
    Medieteknik möter hållbarhet eller hållbarhet möter medieteknik2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    En av BTH:s profiler handlar om hållbarhet. Men hur skulle kurser i medieteknik kunna arbeta med hållbarhet? Hur koppla kurser i digital bildproduktion, digital ljudproduktion och digitala spel till hållbar-het? Är hållbarhetsfrågorna ens relevanta för medieteknik? Det var dessa ut-maningar som ledde till utvecklingen och genomförandet av kursen Designpers-pektiv och – metoder för medieteknik med explicit fokus på hållbarhet. Uppstod det någon kärlek mellan medieteknik och hållbarhet?

  • Helmisaari, Minnamari
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för teknik och estetik.
    Bridging Theory and Practice in Media Technology2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    In a course focusing on visual storytelling, students explore the course content through an inquiry-pro-cess that consists of creating digital productions (such as short movies and animations) and writing a scientific text discussing the process. The balancing act between practice and theory has presented some challenges when designing a course that should both provide an aesthetic & technological founda-tion for further courses as well as encouraging students to explore the course content by undertaking inquiries and writing their own research questions. An issue of the first iteration of the course was also lack of alignment between examination activity (seminar) and course activities (projects & presentations).

  • Bertoni, Marco
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Involving Work Integration Social Enterprisesas case study providers for innovation projects to leverage social sustainability in engineering education.2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    Training engineering graduates in sustainable development literacy is an urgent task for aca-demic institutions. Even though environmental and social considerations are critical dimen-sions to be leveraged when designing quality advanced design-implement (D-I) experiences for students, sustainability is often confined to environmental protection and suffers from the under-development of the social dimemsion.

  • Wall, Johan
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    “Thinking by doing”: making as a vital part of engineering education2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    The engineer of the 21st century is expected to possess a broad range of skills and abilities. Besides more traditional technical knowledge and engineering skills, interpersonal skills, critical thinking, creativity and design makes its way into the curriculum of our engineering education. At the department of me-chanical engineering, the underlying pedagogical approach to teaching engineer-ing design is based on constructivism. Research has shown that a very good way for students to “construct” their knowledge is to design, build and publicly share artifacts. Consequently, we are aiming to make design and prototyping an integral part of our engineering education. This align well with the CDIO initiative of which BTH is part since 2013.

  • Åkesson Nilsson, Gunilla
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för matematik och naturvetenskap.
    Effektiva gruppredovisningar2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Effektivisera gruppredovisningar genom att mixa gruppmedlemmar från olika grupperna i en redovisningsgrupp. Redovisningarna kan genomföras samtidigt och utan lärare. Varje redovisningsgrupp lämnar in en sammanfattning för bedömning.

  • Šāblis, Aivars
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Zabardast, Ehsan
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    An Active Learning Approach2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    In order for software project management courses to be effective, they should be appropriately aligned to the learning outcomes. Common misalignments are caused by using an incorrect degree of realism or inappropriate support.

  • Borg, Christel
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för hälsa.
    Lärande ska vara roligt: Problembaserat lärande (PBL) i ett Activity learning classroom(ALC-klassrum). Möjligheter och utmaningar.2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Problembaserat lärande (PBL) i ett Activity learning classroom(ALC-klassrum). Möjligheter och utmaningar.

  • Wrenne, Anders
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för industriell ekonomi.
    Företagsspelet – Nya Företagets Affärer2019Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Företagsspelet är en icke-datoriserad simuleringsmodell - en ”fysisk” modell av ett producerande företag. Den används för att konkret illustrera en rad strategiska och ekonomiska samband - i ekonomiutbildning, i strategi-utbildning, i utbildning för att skapa ”känsla” för affärer osv.

  • Disputas: 2020-01-24 13:00 C413A, Karlskrona
    Andersén, Jimmie
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för fysisk planering.
    Ett politiskt bygge: - översiktsplaneringens innehållsmässiga utveckling2020Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Debate often describes the evolution of spatial planning as a process of neo-liberalisation. However, this evolution has not been studied from the perspective of planning in general in Sweden. Whether comprehensive planning is also undergoing neo-liberalisation is considered here based on these overarching research questions: 

    -          To what extent has spatial planning undergone neo-liberalisation?

    -          How can the evolution of comprehensive planning be understood as a neo-liberalisation process?

    Answering these questions requires an understanding of the content characterising this planning, and of what a neo-liberalisation process entails. To achieve such an understanding, this dissertation examines how planning in general can be understood as both a political control system and a market-based land use regime.

    The discourse of comprehensive planning was studied by analysing 17 comprehensive plans adopted in five municipalities over the 1989–2014 period.

    Generally, these plans follow a few main evolutionary paths. Municipal comprehensive planning has transitioned from being instrumental, encountering few problems, to becoming increasingly abstract and all-encompassing. Comprehensive planning increasingly concerns how growth is to be achieved locally. This change is occurring in both form and content. Change in form refers to the fact that comprehensive planning has been encompassing more and more subject areas over time, whereas change in content refers to the increasingly market-based content of such planning.

    The research question regarding the extent to which spatial planning is undergoing neo-liberalisation is answered by the obvious trend towards neo-liberalisation. This trend is not pervasive, as countervailing tendencies are also present. Spatial planning is thus becoming internally contradictory, with earlier values persisting, albeit often in interaction with new ones.

    The question of how comprehensive planning can be understood as a neo-liberalisation process has a three-part answer:

    -          As content in comprehensive plans, neo-liberalisation can be understood as a focus on market rationality. 

    -          As form in comprehensive plans, neo-liberalisation can be understood as policy production with content that assumes an ever more neo-liberal orientation. Comprehensive planning during the studied period has come to include more and more municipal areas of activity.

    -          From a neo-liberal perspective, neo-liberalisation is understood as economic utility maximisation.

    Planning is becoming increasingly neo-liberalised, but not neo-liberal. That this has occurred as a result of increasingly comprehensive policy formulations is somewhat surprising. We are faced with the politicisation of planning in general, which is increasingly informed by market-based policy. This trend represents a comprehensive policy shift towards more neo-liberal planning content, accompanied by more policies. More principles are appearing, addressing how planning and development are to proceed compared with the content of pre-existing plans. The neo-liberalisation process is thus occurring via means that are contradictory from a neo-liberal perspective.

  • Borén, Sven
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för strategisk hållbar utveckling.
    Improvements of students learning through changes in feedback and examinations in introduction to strategic sustainable development 7,5 credits2018Inngår i: Lärarlärdom 2018 / [ed] Claes Dahlqvist, Kristianstad, 2018, s. 26-38Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Each year at the Blekinge Institute of Technology, in total 15-30 international master students from the Structural Dynamics and the Erasmus program take a 7.5 credit course in strategic sustainable development. In 2016, the course had rather good scoresfrom the students’ course evaluation, but the students also identified a need for improvements regarding feedback from teachers during the course and also regarding the examination of the course. A study was therefore initiated, aimed at finding out if changes in feedback and examinations can increase students’ learning towards the learning outcomes in the course, and if so, how the teaching and examination in the course could be developed in such direction. The study found through literature review, interviews among colleagues, and surveys among students that instead of a final exam, several knowledge tests and reflective questions during the course could increase the students’ learning. The course design was developed and then implemented in 2017. According to the students’ course evaluation the same year, this lead to even better perceived learning. Except from providing further evidence that students’ learning increases with individual feedback, the study showed how that can be implemented.

  • Disputas: 2019-12-19 15:00 J1650, Karlskrona
    Frank, Martin
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    A Step Towards the Design of Collaborative Autonomous Machines: A Study on Construction and Mining Equipment2019Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Fully autonomous construction and mining machines are not science fiction anymore. For special applications, these types of machinery are well known for several years. The construction and mining industries are ripe for innovative product and service offers, including automated and fully autonomous machines at a larger scale. Nevertheless, commercially available autonomous machines for the main markets are still rare. Driven by the advancements in sensor technology, increased connectivity, and on-board computational capabilities, automation of machine functions and subsystems led to the development of advanced operator-assistant functions in certain fields like material handling, predictive maintenance, and operator guidance. Semi-automated machines, supporting the machine operator during normal operation, are well accepted by users and customers and show beneficial effects on the productivity of the machine and the overall work process. The purpose of this thesis is to generate a deeper understanding of the specific requirements needed to support the design decisions during the development of fully autonomous machines. Complementary, deeper insights into the efficient collaboration between autonomous machines and human collaborators are explored.

    The thesis summarizes the research performed by the author, as an industrial Ph.D. student and Specialist for Intelligent Machines at Volvo Construction Equipment. Performed research comprises the investigation of the state-of-the-art approaches in the automation of machines and dedicated functions with special emphasis on the connectivity of the different systems and components up to the site management solution. Further, the work includes the exploration of data-mining through early experience prototyping as a step towards data-driven design of a product-service system. In additional the research covered the support of on-site collaboration between autonomous machines and humans by investigating team behavior and trust development among humans.

    Conclusions from this work are that autonomous machine design requires new sets of requirements to support early decision making during the development process. Dedicated data collection based on different methods such as, data-mining, needfinding, and observations, supported by multiple physical and virtual artifacts can generate useful data to support the decision-making. Trust between humans and machines, and the preconditions of developing this trust need to be captured as specific requirements. To support further development in the area of autonomous machine design, an interaction model had been proposed to map possible interactions of an autonomous machine with objects and collaborators within the same work area. To capture the different nature of the possible interactions, several levels had been introduced to enable the distinction between cognitive, and physical, as well as intended, and unintended interactions.

     

  • Ida, Nilsson
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för fysisk planering.
    Med blicken mot landsbygden: En planeringsutmaning?2019Inngår i: Plan, nr 5-6, s. 4s. 45-48Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))