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  • 1.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Swedish prepositions are not pure function words2017In: Proceedings of the NoDaLiDa 2017 Workshop on Universal Dependencies, 22 May, Gothenburg, Sweden / [ed] Marie-Catherine de Marneffe, Joakim Nivre, and Sebastian Schuster, Linköping: Linköping University Electronic Press, 2017, Vol. 135, p. 11-18Conference paper (Refereed)
    Abstract [en]

    As for any categorial scheme used for annotation, UD abound with borderline cases. The main instruments to resolve them are the UD design principles and, of course, the linguistic facts of the matter. UD makes a fundamental distinction between content words and function words, and a, perhaps less fundamental, distinction between pure function words and the rest. It has been suggested that adpositions are to be included among the pure function words. In this paper I discuss the case of prepositions in Swedish and related languages in the light of these distinctions. It relates to a more general problem: How should we resolve cases where the linguistic intuitions and UD design principles are in conflict?

  • 2.
    Andersson, Anders
    et al.
    Swedish National Road and Transport Research Institute, Sweden.
    Buffoni, Lena
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Powertrain Model Assessment for Different Driving Tasks through Requirement Verification2018In: The 9th EUROSIM Congress on Modelica and Simulation, 2018, p. 721-727Conference paper (Refereed)
    Abstract [en]

    For assessing whether a system model is a good candidate for a particular simulation scenario or choosing the best system model between multiple design alternatives it is important to be able to evaluate the suitability of the system model. In this paper we present a methodology based on finite state machine requirements verifying system behaviour in a Modelica environment where the intended system model usage is within a moving base driving simulator. A use case illustrate the methodology with a Modelica powertrain system model using replaceable components and measured data from a Golf V. The achieved results show the importance of context of requirements and how users are assisted in finding system model issues. 

  • 3.
    Andersson, Anders
    et al.
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering. Swedish National Road and Transportation Research Institute.
    Fritzson, Peter
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Models for Distributed Real-Time Simulation in a Vehicle Co-Simulator Setup2013In: Proceedings of the 5th International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools; April 19, University of Nottingham, Nottingham, UK / [ed] Henrik Nilsson, Linköping: Linköping University Electronic Press, 2013, Vol. 84, p. 131-139Conference paper (Refereed)
    Abstract [en]

    A car model in Modelica has been developed to be used in a new setup for distributed real-time simulation where a moving base car simulator is connected with a real car in a chassis dynamometer via a 500m fiber optic communication link. The new co-simulator set-up can be used in a number of configurations where hardware in the loop can be interchanged with software in the loop. The models presented in this paper are the basic blocks chosen for modeling the system in the context of a distributed real-time simulation; estimating parameters for the powertrain model; the choice of numeric solver; and the interaction with the solver for real-time properties.

  • 4.
    Andersson, Håkan
    et al.
    Linköping University, Department of Management and Engineering, Solid Mechanics. Linköping University, Faculty of Science & Engineering.
    Simonsson, Kjell
    Linköping University, Department of Management and Engineering, Solid Mechanics. Linköping University, Faculty of Science & Engineering.
    Hilding, Daniel
    DYNAmore Nordic AB, Brigadgatan 5, 587 58 Linköping, Sweden.
    Schill, Mikael
    DYNAmore Nordic AB, Brigadgatan 5, 587 58 Linköping, Sweden.
    Leidermark, Daniel
    Linköping University, Department of Management and Engineering, Solid Mechanics. Linköping University, Faculty of Science & Engineering.
    System level co-simulation of a control valve and hydraulic cylinder circuit in a hydraulic percussion unit2017In: Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden / [ed] Petter Krus, Liselott Ericson and Magnus Sethson, Linköping: Linköping University Electronic Press, 2017, Vol. 144, p. 225-235Conference paper (Refereed)
    Abstract [en]

    In this study a previously developed co-simulation method that is based on a 1D system model representing the fluid components of a hydraulic machinery, within which structural 3D Finite Element (FE) models can be incorporated for detailed simulation of specific sub-models or complete structural assemblies, is further developed. The fluid system model consists of ordinary differential equation sub-models that are computationally very inexpensive, but still represents the fluid dynamics very well. The co-simulation method has been shown to work very well for a simple model representing a hydraulic driven machinery. A more complex model was set up in this work, in which two cylinders in the hydraulic circuit were evaluated. Such type of models, including both the main piston and control valves, are necessary as they represent the real application to a further extent than the simple model, of only one cylinder. Two models have been developed and evaluated, from the simple rigid body representation of the structural mechanics model, to the more complex model using linear elastic representation. The 3D FE-model facilitates evaluation of displacements, stresses, and strains on a local level of the model. The results can be utilised for fatigue assessment, wear analysis and for predictions of noise radiation.

  • 5.
    Aronsson, Peter
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Comparing National Museums: Methodological Reflections2008In: NaMu IV: Comparing: National Museums,Territories, Nation-Building and Change / [ed] Peter Aronsson; Andreas Nyblom, Linköping, Sweden: Linköping University Electronic Press, 2008, p. 5-20Conference paper (Refereed)
    Abstract [en]

    The article sets out to define the need for comparing national museums as complex cultural processes. To do this questions are developed that concern the workings of institutions as arenas for cultural policy and identity politics in relation to central fields of knowledge. Methodological considerations for designing a comparative project are presented; and finally four fields of comparative endeavours related to different sets of state-making processes are presented:

    An all-encompassing European comparison (including colonial endeavours) on the path taken by various nations to establish the place of national museums and the role they play in the creation of community.

    An in-depth study of how the national display in a selection of countries creates visions of cultural community. How do they deal with differences and belongings on a super-national level and how do they relate to regional differences?

    From a citizens’ perspective the intentions of cultural policy or institutional ambitions might be of little importance. This part will simulate visitor experience of national narratives in a comparative selection of capitals from project one; in order to develop an understanding of how citizen experience relates to the more structural findings in the other sub-projects and hence map in what directions citizenship and community are moving through contemporary displays of national community.

    The place of national museums in changing knowledge regimes.

  • 6.
    Aronsson, Peter
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Foreword: A European Project2011In: Building National Museums in Europe 1750–2010: . Conference proceedings from EuNaMus, European National Museums: Identity Politics, the Uses of the Past and the European Citizen, Bologna 28-30 April 2011 / [ed] Peter Aronsson & Gabriella Elgenius, Linköping University Electronic Press , 2011, p. 1-4Conference paper (Refereed)
  • 7.
    Aronsson, Peter
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Kulturarv och historiebruk2012In: Problemorienterad kulturvetenskaplig forskning vid Tema Q 2002-2012: Tema Q jubileumssymposium 19-20 januari 2012 / [ed] Svante Beckman, Linköping: Linköping University Electronic Press, 2012, p. 34-50Conference paper (Other academic)
  • 8.
    Aronsson, Peter
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Making National Museums: Comparing Institutional Arrangements, Narrative Scope and Cultural Integration2007In: NaMu, making national museums program, setting the frames / [ed] Peter Aronson and Magdalena Hillström, Linköping: Linköping University Electronic Press , 2007, p. 5-12Conference paper (Refereed)
    Abstract [en]

    The purpose of NaMu is to develop the tools, concepts and organisational resources necessary for investigating and comparing the major public structure of National Museums, as created historically and responding to contemporary challenges of globalisation, European integration, and new media. What are the forces and values of traditional national display in dealing with challenges to national, cultural and political discourse? This will be achieved by a series of conferences providing a venue for younger scholars and eminent researcher to gather and develop the multi-disciplinary competence necessary to understand and compare the dynamics of national museums in a framework of a broadly understood historical culture and identity politics. The opening address present the aim and intellectual challenges of the entire program and outline the question of definitions and performance made by national museums and the possibilities of the comparative and multi-disciplinary scope.

  • 9.
    Aronsson, Peter
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Bentz, Emma
    National Museums in Germany: Anchoring Competing Communities2011In: Building National Museums in Europe 1750–2010: Conference proceedings from EuNaMus, European National Museums: Identity Politics, the Uses of the Past and the European Citizen, Bologna 28-30 April 2011 / [ed] Peter Aronsson & Gabriella Elgenius, Linköping: Linköping University Electronic Press, 2011, p. 327-362Conference paper (Refereed)
    Abstract [en]

    From 1760-2010, Germany has been marked by several levels of nation-building as well as many different ideological and territorial projects. This inquiry has focused on processes of long continuity, spanning unification in both the nineteenth and twentieth centuries, adding the most important ruptures and institutional inventions to get a firm-enough basis for conclusions on the institutional role of museums vis-a-vis the state-making process. The most significant periods for the interaction between museums and nation-building can be labelled

    1. The struggle, leading to Germany’s unification in 1871, where several regions made their bids through museums.
    2. Imperial unity on display from 1871-1914. National museums were stabilizing and universalizing the German Empire in the world.
    3. Nazi cultural policy, 1933-1945: Comprehensive museum plans for the Third Reich.
    4. GDR (German Democratic Republic) national museums between 1949-1990 were dominated by the ideology of socialist culture.
    5. The Federal republic, before and after 1990: inscribing Nazi and GDR as pasts contained within brackets.

    Germany’s history is marked by the processes of unification meeting dissociative forces resulting in dramatic political shifts and the persistence of a complex federal structure. Museums reflect various strategies both within this history and through contributions to stabilizing, reinforcing and materializing ideas of continuity. Balancing the unifying message of the heritage of a Roman – German legacy and later federal structures resulted in a distribution of national museums in Berlin, Munich, Nuremberg and Bonn. A long-standing cooperation and tension between local, regional and national identities with a clear utopian and activist element marks initiatives taken for establishing national museums. What later became national museums often started as private individual or collective elite initiatives aimed at putting certain projects on the political agenda.

    The enlightenment ambitions went beyond national borders with the establishment of Humboldt University in Berlin in 1810 and several of the institutions at the Museumsinselas “Universalmuseen”. The scientific and technical scope of Deutsches Museum in Munich captured the rational dimension in German identity politics into the next century. These rational and scientific ambitions coincided in time and helped to legitimize both military national unification and imperial undertakings.

    Implicit and explicit historical narratives representing the existence of German culture dominated national museums with a plastic delimitation between a European (Roman), Germanspeaking and German state as the space of representation. Art and cultural history was more expandable, while political history followed the honours and sorrows of political community.

    National museums have, overall, survived with an astonishing continuity when successively changing the goal of state-making from creating the state, an empire, a Nazi state to overcoming that past and creating democratic visions in both liberal and communist versions to, again, healing that division and constructing it as a parenthesis in history. A re-nationalisation process post-1990 again activated investments in museums and reveals again a standing ambiguity in dealing with national sentiments. This is most clearly visible in museum discussions and projects dealing with the NS-legacy versus demands for “Normalisierung”.

    As opposed to many European countries from France to Greece that have a high level of centralization within the field of culture, both culture and cultural politics is, in Germany, mainly dealt with on a regional level within each Bundesland. This can partly be explained by the terrifying experience of a centralized rule and the misuse of art and culture for political ends made during the NS-regime (Klein 2003):71). After the war, one sought to prevent this through legislation by reducing state influence within the cultural policy sphere through the foundational law (GG article 5(3) and 30). A federal - and thus fragmented - Germany was also something desired by the Allies. However, a decentralized Germany was nothing entirely new. An on-going interplay between regional and central forces in representing the state was one of the long-term phenomena, although driven by various logics: In the mid-19th century, the relative strength and actual outcome of the unification process was naturally open-ended which allowed for several strong suggestions, while mid-20thcentury dynamics was determined by the urge not to repeat the mishaps of a strong national ideology. The current trend seems to lend itself to stronger nationalizing forces in the field of memory politics.

    The overarching argument of the role played by national museums in the making of the German state and nation is that it has provided a platform for a cultural constitution only slowly negotiating changing ideas of what it means to be German and how to relate to local, regional and transnational communities. Hence, the main impact of the museums is to secure ideas of continuity in the midst of dramatic political change.

  • 10.
    Aronsson, Peter
    et al.
    MathCore Engineering AB, Linköping, Sweden.
    Broman, David
    Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
    Extendable Physical Unit Checking with Understandable Error Reporting2009In: Proceedings of the 7th International Modelica Conference, Como, Italy, 20-22 September 2009, Linköping: Linköping University Electronic Press, Linköpings universitet , 2009, p. 890-897Conference paper (Refereed)
    Abstract [en]

    Dimensional analysis and physical unit checking are important tools for helping users to detect and correct mistakes in dynamic mathematical models. To make tools useful in a broad range of domains, it is important to also support other units than the SI standard. For instance, such units are common in biochemical or financial modeling. Furthermore, if two or more units turn out be in conflict after checking, it is vital that the reported unit information is given in an understandable format for the user, e.g., “N.m” should preferably be shown instead of “m2.kg.s-2”, even if they represent the same unit. Presently, there is no standardized solution to handle these problems for Modelica models. The contribution presented in this paper is twofold. Firstly, we propose an extension to the Modelica language that makes it possible for a library designer to define both new base units and derived units within Modelica models and packets. Today this information is implicitly defined in the specification. Secondly, we describe and analyze a solution to the problem of presenting units to users in a more convenient way, based on an algorithm using Mixed Integer Programming (MIP). Both solutions are implemented, tested, and illustrated with several examples.

  • 11.
    Aronsson, Peter
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Elgenius, GabriellaLinköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Building National Museums in Europe 1750–2010: Conference proceedings from EuNaMus, European National Museums: Identity Politics, the Uses of the Past and the European Citizen, Bologna 28-30 April 2011. EuNaMus Report No. 12011Conference proceedings (editor) (Other academic)
    Abstract [en]

    This online publication is produced within the three-year research programme EuNaMus – European National Museums: Identity Politics, the Uses of the Past and the European Citizen, coordinated at Tema Q at Linköping University (www.eunamus.eu).

    EuNaMus explores the creation and power of the heritage created and presented by European national museums to the world, Europe and its states, as an unsurpassable institution in contemporary society. National museums are defined and explored as processes of institutionalized negotiations where material collections and displays make claims and are recognized as articulating and representing national values and realities. Questions asked in the project are why, by whom, when, with what material, with what result and future possibilities are this museums shaped.

    This Open Access publication gives a comparative overview of the historical roles of national museums in state-making processes. It has been created to stimulate discussion and debate among academics, policy-makers, museum professionals and citizens. The individual author is responsible for the content of each report and if you have any comments please do not hesitate to contact the author who would welcome these. Further publications from EuNaMus are in process. Please consult www.eunamus.eu for updated information.

  • 12.
    Aronsson, Peter
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Elgenius, Gabriella
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Making National Museums in Europe – a comparative approach2011In: Building National Museums in Europe 1750–2010: Conference proceedings from EuNaMus, European National Museums: Identity Politics, the Uses of the Past and the European Citizen, Bologna 28-30 April 2011 / [ed] Peter Aronsson & Gabriella Elgenius, Linköping University Electronic Press , 2011, p. 5-20Conference paper (Refereed)
    Abstract [en]

    National museums refer to those institutions, collections and displays claiming, articulating and representing dominant national values, myths and realities. From this perspective, national museums can hereby be explored as historic and contemporary processes of negotiations and values that constitute the basis for national communities and state-formations. National museums have thus become significant within arenas of negotiation and consolidation of new answers to questions ultimately linked to nationhood, citizenship and the role of the nation within a system of other nations. We argue here that national representation and representations of nations, as negotiated by national museums, provide a contribution to shaping and representing the socio-political community. Moreover, the fundamental properties of nations and states, perceived of as legitimate and factual representations of the world, are presenting the nation within a political system of other nations. Once established, national museums become a cultural asset and force unto themselves that are to be regarded and rearranged but seldom destroyed by new socio-political groups and visions. The longevity of their existence across periods of political change provides one of the powerful features of the institution.

    Some periods and contexts have, in particular, been conducive to museum-building such as the intensive demand for national museums that followed in the wake of the Napoleonic wars with the creation of national states, justifying autonomy of the state on the basis of national distinctiveness and uniqueness. As a result, regional differences within nations were rearranged in order to fit with such affiliations and promote new loyalties. The notion of a western civilisation and western values were also nationalized in the process of museum making in Europe resulting in different interpretations of universal, national and transnational values and identifications. It is within such contexts, among many, that a study of national museums - as a means of representing high culture, values and national pride - provide illuminating and comparative data on the many related processes of nationalisation.

    The aim of the EuNaMus research programme is to to illuminate gaps in existing research by adding a crucial comparative perspective to the study of national museums. We are hereby presenting the first comprehensive overview over national museums in Europe and outline the basis of comparative elements and significant variables. In a comparative light and as a rule, the trajectories of the European national museums provide an account of the parallel interactions between museum, nation and state and give witness to the long standing relevance of national museums as constituent components of what will be analysed as negotiated cultural constitutions. It is through these that nations have expressed a yearning for a golden and legitimate past. Attempting to balance such perceived needs for continuity with the increased diversity and difference of the contemporary world turns the notion of a unified agenda of the future into a challenge.

  • 13.
    Aronsson, Peter
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Hillström, MagdalenaLinköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    NaMu, making national museums program, setting the frames, 26-28 February, Norrköping, Sweden2007Conference proceedings (editor) (Other academic)
    Abstract [en]

    The purpose of Making National Museums (NaMu) is to develop the  tools, concepts and organisational resources necessary for  investigating and comparing the major public structure of National  Museums, as created historically and responding to contemporary challenges of globalisation, European integration, and new media.What are the forces and values of traditional national display in dealing with challenges to national, cultural and political discourse? This will be achieved by a series of conferences providing a venue for younger scholars and eminent researcher to gather and develop the multi-disciplinary competence necessary to understand and compare the dynamics of national museums in a framework of a broadly understood historical culture and identity politics

    Setting the Frames was the first workshop in a series of six  international conferences. The papers presented are published in the proceedings of LiU E-press.

  • 14.
    Aronsson, Peter
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Nyblom, Andreas
    Comparing: National Museums, Territories, Nation-Building and Change. NaMu IV, Linköping University, Norrköping, Sweden 18–20 February 20082008Conference proceedings (editor) (Refereed)
    Abstract [en]

    In earlier conferences of NaMu: Making National In earlier conferences of NaMu: Making National Museums, we have explored the complexity of defining National Museums laboured with contemporary narrative analyses and dealt specifically with how diversity and difference are negotiated in an increasingly globalized world. Seewww.namu.se andwww.ep.liu.se/ecp_home/index.en.aspx?issue=022.

    The fourth conference in the series held at Linköping University 18-20 February 2008 took an explicit historical and comparative outlook dealing with some of the main questions of the NaMu program, stressing methodological issues and comparative strategies. Eight thematic sessions were introduced by seminal key-notes giving European, global and methodological feeds to the dialogue over disciplinary and national borders:

    1. Comparing relationships between different forms of national museums and their related academic disciplines. To what extent were and are they part of institutions of knowledge? Do they present a coherent approach to memory politics? To what extent are there autonomous logics operating in the evolution of cultural, historical, technical, natural and art national museums?
    2. Comparing the narratives told in and by museums: how do they evolve over time? What “us” and what “others” were constructed with what means? Do they differ between countries structurally?
    3. Comparing the role of national museums in the overall history of their setting (relating to disciplinary, esthetical, political and economical developments. Are they forming nations, creating hegemony, arguing for change, disrupting order or integrate?

    Some answers and the basis for more intelligent questions are to be found in this volume.

  • 15.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Blomkvist, Johan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Pezone, Giovanni
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    A Service Walkthrough in Astrid Lindgren's Footsteps2012In: Proceedings from ServDes.2012 Conference Proceedings Co-Creating Services, The 3rd Service Design and Service Innovation Conference, 8-10 February, Espoo, Finland, Linköping: Linköping University Electronic Press, 2012, p. 21-29Conference paper (Refereed)
    Abstract [en]

    How can service prototypes be created and evaluated? This paper describes how methods like bodystorming and experience prototyping can be used in combination with pluralistic walkthrough in an evaluation method we call ‘service walkthrough’. We put the method to test in the development of augmented tourism services at the author Astrid Lindgren's childhood home. After initial design work, a mock-up and roleplay of a treasure hunt in the garden of the childhood home was made. It was evaluated using the service walkthrough method. The most important lesson learned was that a service walkthrough can be used to evaluate service prototypes and that it reveals information about practical as well as experiential issues for users.

  • 16.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Service Design Ways to Value-In-Use2016In: Service design geographies: Proceedings of the ServDes2016 Conference / [ed] Nicola Morelli, Amalia de Götzen, Francesco Grani, Linköping: Linköping University Electronic Press, 2016, Vol. 125, p. 530-536Conference paper (Refereed)
    Abstract [en]

    What do we mean if we say that a service design work is an example of good design? This paper presents a provisional typology for the ways in which a service design proposal can contribute to value-in-use. The typology covers instrumentality, technical excellence, usefulness, social significance, mutual advantage, collective welfare, and aesthetic values. Moral implications related to norms, power structures and tensions between stakeholders are also considered. It is argued that the typology can facilitate service designers and researchers in framing and re-framing a design effort and conceptualise a value proposition. 

  • 17.
    Asghar, Adeel
    et al.
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Pfeiffer, Andreas
    DLR Institute of System Dynamic and Control, Wessling, Tyskland.
    Palanisamy, Arunkumar
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Mengist, Alachew
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Sjölund, Martin
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Pop, Adrian
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Fritzson, Peter
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Automatic Regression Testing of Simulation Models and Concept for Simulation of Connected FMUs in PySimulator2015In: Proceedings of the 11th International Modelica Conference: Versailles, France, September 21-23, 2015 / [ed] Peter Fritzson, Hilding Elmqvist, Linköping, 2015, p. 671-679Conference paper (Refereed)
    Abstract [en]

    The Modelica and FMI tool ecosystem is growing each year with new tools and methods becoming available. The open Modelica standard promises portability but it is important to ensure that a certain model behaves the same in different Modelica tools or in a different version of the same tool. It is also very important (for model evolution) to check that a new version of the same model produces comparable results. Finally, it is desirable to verify that a model exported in FMU form from a Modelica tool gives exactly the same results as the original model. This paper presents a framework for automatic regression testing as part of PySimulator which provides an efficient and concise way of testing if a model or a range of models behaves in the same way in several tools or versions of a tool by checking that the results produced are essentially identical. The FMI standard has been adopted by many tool vendors and is growing in popularity each year. This paper proposes a concept for building and simulating a system made from connected FMUs generated by different tools. The FMUs for Co-Simulation can be connected together using a GUI. The system model built graphically in this way can be saved for later use or simulated directly inside PySimulator. Active development is going on to support simulation of connected FMUs for Model Exchange.

  • 18.
    Asghar, Syed Adeel
    et al.
    Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
    Tariq, Sonia
    Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
    Torabzadeh-Tari, Mohsen
    Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
    Fritzson, Peter
    Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
    Pop, Adrian
    Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
    Sjölund, Martin
    Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory. Linköping University, The Institute of Technology.
    Vasaiely, Parham
    EADS Innovation Works, Engineering & Architecture, Hamburg, Germany.
    Schamai, Wladimir
    EADS Innovation Works, Engineering & Architecture, Hamburg, Germany.
    An Open Source Modelica Graphic Editor Integrated with Electronic Notebooks and Interactive Simulation2011In: Proceedings of the 8th International Modelica Conference, March 20th-22nd, Technical Univeristy, Dresden, Germany / [ed] Christoph Clauß, Linköping: Linköping University Electronic Press, 2011, Vol. 63, p. 739-747Conference paper (Refereed)
    Abstract [en]

    This paper describes the first open source Modelica graphic editor which is integrated with interactive electronic notebooks and online interactive simulation. The work is motivated by the need for easy-to-use graphic editing of Modelica models using OpenModelica, as well as needs in teaching where the student should be able to interactively modify and simulate models in an electronic book. Models can be both textual and graphical. The interactive online simulation makes the simulation respond in real-time to model changes, which is useful in a number of contexts including immediate feedback to students.

  • 19.
    Axelsson, Bodil
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Documenting and Networking the Nation as it Evolves2011In: Current Issues in European Cultural Studies, June 15–17, Norrköping, Sweden 2011 / [ed] Martin Fredriksson, Linköping University Electronic Press, 2011, p. 175-181Conference paper (Refereed)
    Abstract [en]

    The Samdok network has since the 1970s connected cultural historical museums in Sweden in a joint effort to collect and record the contemporary nation. Together the local, regional, special and central museums joining in on Samdok, form a networked museumscape in which Nordiska Museet act as a central node. This paper will look into Samdok’s presentation of itself in books, reports and its regularly distributed periodical to understand how this network represents and materialises Sweden. It will tentatively argue that Samdok promotes societal and cultural, as well as scholarly and disciplinary, ideals of transformation and change. The network has re-invented itself over the years in order to keep up with transformations in the wider society such as globalisation, migration, and the move from industrialism to consumerism with the rise of the service sector. It has reinvented itself in terms of directions for collecting, and it has reinvented itself in terms of how it looks upon itself as an organisation by shifting from ideals of scientifc rationality to reflexive cultural analysis. As a consequence, looking at Sweden from within Samdok, means looking at a nation and a network in perpetual change.

  • 20.
    Axelsson, Bodil
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    När historien blir personlig: Reenactment som inlevelse och kunskap2012In: Kulturaliseringens samhälle: Problemorienterad kulturvetenskaplig forskning vid Tema Q 2002 - 2012 / [ed] Svante Beckman, Linköping: Linköping University Electronic Press, 2012, p. 123-126Conference paper (Other academic)
  • 21.
    Axelsson, Bodil
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Dupont, ChristineHouse of European History, European Parliament.Kesteloot, ChantalCentre for Historical Research and Documentation on War and Contemporary Society, Brussels.
    Entering Two Minefields: Research for Policy-Making and the Creation of New History Museums in Europe2012Conference proceedings (editor) (Refereed)
    Abstract [en]

    All over Europe, the founding of new history museums brings to the fore questions as to which stories should be told, which objects should be put on display, for what audiences and with what results and future possibilities. This collection of papers brings together reflections on the nature and roles of history museums on a general level with reports from case studies in Brussels, Berlin, Warsaw and Paris. The cases dwell on the challenges and negotiations of collections, communities and citizenship that arise when polities create new museums. How to balance political and intellectual concerns? The report starts out with the intersection between policy and research, including interventions from the European Commission and reflections on the balancing acts involved in producing research with policy relevance. The conference and the report were co-produced by EuNaMus and the House of European History.

    The conference proceedings are produced within the three-year research programme EuNaMus – European National Museums: Identity Politics, the Uses of the Past and the European Citizen, coordinated at Tema Q at Linköping University (www.eunamus.eu). EuNaMus explores the creation and power of the heritage created and presented by European national museums to the world, Europe and its states, as an unsurpassable institution in contemporary society. National museums are defined and explored as processes of institutionalized negotiations where material collections and displays make claims and are recognized as articulating and representing national values and realities. Questions asked in the project are why, by whom, when, with what material, with what result and future possibilities are this museums shaped.

  • 22.
    Axelsson, Bodil
    et al.
    Linköping University, Department for Studies of Social Change and Culture. Linköping University, Faculty of Arts and Sciences.
    Fornäs, Johan
    Linköping University, Department for Studies of Social Change and Culture, Advanced Cultural Studies Institute of Sweden. Linköping University, Faculty of Arts and Sciences.
    Kulturstudier i Sverige. Nationell forskarkonferens, 13-15 juni, 2005, Norrköping, Sweden2005Report (Other academic)
  • 23.
    Axelsson, Lisa
    et al.
    Chalmers University of Technology, Sweden.
    Franzén, Maria
    Chalmers University of Technology, Sweden.
    Ostwald, Madelene
    Linköping University, Department of Thematic Studies, Centre for Climate Science and Policy Research. Linköping University, Department of Thematic Studies, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences. Chalmers University of Technology, Sweden.
    Berndes, Göran
    Chalmers University of Technology, Sweden.
    Ravindranath, N.H.
    Indian Institute of Science, Bangalore, India.
    Performance of Jatropha biodiesel production and its environmental and socio-economic impact – A case study in Southern India2011In: World Renewable Energy Congress 2011, Linköping: Linköping University Electronic Press, 2011, p. 2470-2477Conference paper (Refereed)
    Abstract [en]

     In India expectations have been high on production of biodiesel from the oil-crop Jatropha. Jatropha is promoted as a drought- and pest-resistant crop, with the potential to grow on degraded soil with a low amount of inputs. These characteristics encourage hope for positive environmental and socio-economic impacts from Jatropha biodiesel production. The purpose of this study was to explore the performance of Jatropha biodiesel production in Southern India, to identify motivational factors for continued Jatropha cultivation, and to assess environmental and socio-economic impacts of the Jatropha biodiesel production. 106 farmers who have or have had Jatropha plantations were visited and interviewed regarding their opinion of Jatropha cultivation. The result indicates that 85 percent of the farmers have discontinued cultivation of Jatropha. The main barriers to continued cultivation derive from ecological problems, economic losses, and problems in the development and execution of the governmental implementation of the Jatropha programme. The Jatropha characteristics were overrated, and the plantations failed to provide income to the farmer. A common factor for the farmers who continued Jatropha cultivation was that they had the economic means to maintain non-profitable plantations. As the Jatropha programme was not as successful as expected, the expected positive environmental and socio-economic impacts have not been realized.

  • 24.
    Axin, Mikael
    et al.
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Krus, Petter
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Design Rules for High Damping in Mobile Hydraulic Systems2013In: 13th Scandinavian International Conference on Fluid Power, Linköping University Electronic Press, 2013, p. 13-20Conference paper (Refereed)
    Abstract [en]

    This paper analyses the damping in pressure compensated closed centre mobile working hydraulic systems. Both rotational and linear loads are covered and the analysis applies to any type of pump controller. Only the outlet orifice in the directional valve will provide damping to a pressure compensated system. Design rules are proposed for how the system should be dimensioned in order to obtain a high damping. The volumes on each side of the load have a high impact on the damping. In case of a small volume on the inlet side, the damping becomes low. However, the most important thing is to design the outlet orifice area properly. There exists an optimal orifice dimension for maximized damping; both smaller and larger orifice areas give lower damping independently of the volumes. This paper presents a method to dimension the outlet orifice area and the load volumes in order to obtain a desired system damping. Experimental results, which confirm the theoretical expectations, are also presented. The conclusions are that it is possible to obtain a high damping contribution from the outlet orifice if the system is dimensioned correctly. However, the energy efficiency needs to be considered while improving the damping

  • 25.
    Bachmann, Bernhard
    et al.
    Dept. Mathematics and Engineering, University of Applied Sciences, Bielefeld, Germany.
    Ochel, Lennart
    Dept. Mathematics and Engineering, University of Applied Sciences, Bielefeld, Germany.
    Ruge, Vitalij
    Dept. Mathematics and Engineering, University of Applied Sciences, Bielefeld, Germany.
    Gebremedhin, Mahder
    Linköping University, Faculty of Science & Engineering. Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory.
    Fritzson, Peter
    Linköping University, Faculty of Science & Engineering. Linköping University, Department of Computer and Information Science, PELAB - Programming Environment Laboratory.
    Nezhadali, Vaheed
    Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, Faculty of Science & Engineering.
    Eriksson, Lars
    Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, Faculty of Science & Engineering.
    Sivertsson, Martin
    Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, Faculty of Science & Engineering.
    Parallel Multiple-Shooting and Collocation Optimization with OpenModelica2012In: Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany, Linköping University Electronic Press, 2012, p. 659-668, article id 067Conference paper (Refereed)
    Abstract [en]

    Nonlinear model predictive control (NMPC) has become increasingly important for today’s control engineers during the last decade. In order to apply NMPC a nonlinear optimal control problem (NOCP) must be solved which needs a high computational effort.

    State-of-the-art solution algorithms are based on multiple shooting or collocation algorithms; which are required to solve the underlying dynamic model formulation. This paper describes a general discretization scheme applied to the dynamic model description which can be further concretized to reproduce the mul-tiple shooting or collocation approach. Furthermore; this approach can be refined to represent a total collocation method in order to solve the underlying NOCP much more efficiently. Further speedup of optimization has been achieved by parallelizing the calculation of model specific parts (e.g. constraints; Jacobians; etc.) and is presented in the coming sections.

    The corresponding discretized optimization problem has been solved by the interior optimizer Ipopt. The proposed parallelized algorithms have been tested on different applications. As industrial relevant application an optimal control of a Diesel-Electric power train has been investigated. The modeling and problem description has been done in Optimica and Modelica. The simulation has been performed using OpenModelica. Speedup curves for parallel execution are presented.

  • 26.
    Backman, Stina
    et al.
    Linköping University, Department of Thematic Studies, The Department of Gender Studies. Linköping University, Faculty of Arts and Sciences.
    Lundberg, Anna
    Linköping University, Department of Thematic Studies, The Department of Gender Studies. Linköping University, Faculty of Arts and Sciences.
    40+ äntligen tid för lite spinning! En pilotstudie om vardagsmotionsvanor bland svenska kvinnor i medelåldern2013In: On the Move: ACSIS conference 11–13 June Norrköping, Sweden 2013: I rörelse: ACSIS kulturforskningskonferens 11-13 juni Norrköping, Sverige 2013 / [ed] Johanna Dahlin och Tove Andersson, Linköping: Linköping University Electronic Press, 2013, p. 9-14Conference paper (Refereed)
    Abstract [sv]

    Den här presentationen bygger på en pilotstudie om medelålders kvinnor och idrott genomförd under våren 2013. Studien är utformad mot bakgrund av statistiska centralbyråns, SCBs material samlat inom ramen för ULF, undersökningar av levnadsförhållanden. Databasen ULF innehåller statistisk information om hur levnadsförhållanden i Sverige ser ut bland olika grupper. Områden som behandlas i är bland annat boende, ekonomi, hälsa, fritid, sociala relationer, sysselsättning och trygghet. Uppgifterna som publiceras i samlas in genom telefonintervjuer med ett urval av Sveriges befolkning över 16 år.

  • 27.
    Baer, Katharina
    et al.
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Ericson, Liselott
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Krus, Petter
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Modeling of a Series Hybrid Hydraulic Drivetrain for a Light-Duty Vehicle in Hopsan2013In: Conference proceedings: 13th Scandinavian International Conference on Fluid Power / [ed] Petter Krus, Magnus Sethson, Liselott Ericson, Linköping, Sweden: Linköping University Electronic Press, 2013, p. 107-112Conference paper (Refereed)
    Abstract [en]

    Hydraulic hybrids continue to receive attention as a possible solution in the search for improved fuel economy for different vehicle types. This paper presents a model for a series hydraulic hybrid light-duty vehicle, developed in the Hopsan simulation tool of Linköping University’s Division of Fluid and Mechatronic Systems (Flumes). Focusing on the hydraulic transmission which employs a pump control based on the hydraulic accumulator’s state-of-charge (SoC), several simplifications were made, especially concerning mechanical components. Simulation over two urban standard cycles shows promising results concerning dynamic performance and energy recuperation potential, provided sufficient component sizing to compensate for the mechanical limitations. This paper lays the foundation for both a further refined model - suitable for optimizing the full drivetrain, including component sizing and controller parameterization - and the development of comparable models for parallel and power-split hybrid architectures.

  • 28.
    Beckman, Svante
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Kulturaliseringens samhälle: Problemorienterad kulturvetenskaplig forskning vid Tema Q 2002 - 2012: Tema Q jubileumssymposium 19-20 januari 2012, Norrköping, Sweden2012Conference proceedings (editor) (Other academic)
    Abstract [sv]

    Det finns många sorters kulturforskning. Den mesta kulturforskningen vid svenska universitet gäller kultur i estetisk, filologisk, antropologisk eller antikvarisk mening. Den handlar om de sköna konsternas produkter och upphovsmän, om språk, om gruppers sedvänjor och beteendemönster och om de historiska lämningarna av tidigare samhällsliv. Vid Linköpings universitet har kulturforskning med en annan inriktning byggts upp och den har efterhand koncentrerats till Tema Kultur och samhälle, Tema Q. Den handlar om kulturens ställning och roll i samhällsutvecklingen, både i en trängre mening som en dynamisk samhällssektor, och i en vidare där kultur och bruket av kultur samspelar med andra samhällskrafter.En huvudinriktning är mot det långa tidsperspektivet på kulturbildningen och bruket av historia i formeringen av samhällets utveckling. En annan studerar kulturen som växande ekonomisk sektor och politikområde. En tredje är inriktad mot de övergripande processer av kulturalisering och medialisering som utmärker den moderna världen. Forskningen vid Tema Q presenteras i denna bok. Författarna är eller har varit verksamma vid temat.

  • 29.
    Beckman, Svante
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Tema Q:s bakgrund och utveckling2012In: Kulturaliseringens samhälle: Problemorienterad kulturvetenskaplig forskning vid Tema Q 2002 - 2012 / [ed] Svante Beckman, Linköping: Linköping University Electronic Press, 2012, p. 8-33Conference paper (Other academic)
    Abstract [sv]

    Formellt uppstod Tema Q den 1 januari 2000. Fakultetsbesluten att inrätta det nya temat Kulturarv och kulturproduktion hade fattats i november och december året innan. På pappret fanns då två tjänsteinnehavare. Det var musikvetaren Anders Wiklund och jag. Anders Wiklunds professur delades med Göteborgs universitet och han hade rekryterats av Linköpings rektor Anders Flodström som ett led i universitetets stöd till Vadstena-Akademien, vars konstnärlige ledare Wiklund var. Min professur på 20% flyttades från Tema Teknik och social förändring i Linköping, där jag varit verksam sedan starten 1980. På 80% tjänstgjorde jag som föreståndare för Arbetslivsinstitutets  forskningsstation, Arbete och kultur, i Norrköping. Till Tema Q :s ursprungliga kollegium räknades också museologen Erik Hofrén, som var adjungerad professor vid universitetet på halvtid och föreståndare för det Centrum för studier av det industriella kulturarvet, CSIK, som hade inrättats 1997. Det gjorde även den teoretiske filosofen Jens Cavallin, departementssekreterare vid Kulturdepartementet, som genomförde ett regeringsuppdrag om mediekoncentration placerad vid Linköpings universitet i Norrköping.

    I temats första budget på 1,7 miljoner ingick lönemedel för de två nya professurer som fakulteten hade tilldelat temat. I avvaktan på att dessa skulle tillsättas sparades en stor del av pengarna för att bidra till finansiering av framtida doktorander. En del användes för att på deltid låna in Kalle Bäck och Lasse Kvarnström från enheten för Historia vid Temainstitutionen i Linköping, för att hjälpa till med förberedelserna för professorstillsättningarna, forskningsinventeringar och ansökningar om externa forskningsanslag.

    Vid tillkomsten var Tema Q det nionde och, mätt i fakultetsanslag, minsta av filosofiska fakultetens karaktäristiska teman inrättade sedan starten 1980. År 2011 är Tema Q det till fakultetsanslaget största av de återstående fem officiella temana* med fakultetsmedel på cirka 14 miljoner och totala intäkter på 22. Verksamma vid temat enligt den senaste årsberättelsen var 3 administratörer, 7 professorer, 12 externfinansierade forskare, 14 doktorander och 9 affilierade forskare. Sedan den första disputationen 2006 har 23 doktorer utexaminerats. Cirka 400 publikationer i universitets publikationsdatabas har genererats av personer under deras anställningstid vid Tema Q. Miljön är den största för forskning om kulturens roll i samhället i Norden. Det handlar om en ganska dramatisk expansion.

    Hur gick det här till ? Jag ska försöka besvara frågan med hjälp av kommenterad krönika över märkesår i Tema Q :s utveckling.** Sedan 2002, det första riktiga verksamhetsåret, kan man i detalj följa utvecklingen i temats årsberättelser. Den innehållsliga utvecklingen av forskning och forskarutbildning vid Tema Q beskrivs översiktligt i de närmaste åtta avsnitten i denna bok. Det motiverar att jag lagt huvudvikten vid utvecklingen fram till 2002. Avslutningsvis gör jag några reflektioner över dynamiken i processen.

  • 30.
    Bendtsen, Marcus
    et al.
    Linköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, Faculty of Science & Engineering.
    Peña, Jose M.
    Linköping University, Department of Computer and Information Science, Statistics. Linköping University, Faculty of Science & Engineering.
    Modelling regimes with Bayesian network mixtures2017In: Proceedings of the 30th Annual Workshop of the Swedish Artificial Intelligence Society SAIS 2017, May 15–16, 2017, Karlskrona, Sweden / [ed] Niklas Lavesson, Linköping: Linköping University Electronic Press, 2017, Vol. 137, p. 20-29, article id 002Conference paper (Refereed)
    Abstract [en]

    Bayesian networks (BNs) are advantageous when representing single independence models, however they do not allow us to model changes among the relationships of the random variables over time. Due to such regime changes, it may be necessary to use different BNs at different times in order to have an appropriate model over the random variables. In this paper we propose two extensions to the traditional hidden Markov model, allowing us to represent both the different regimes using different BNs, and potential driving forces behind the regime changes, by modelling potential dependence between state transitions and some observable variables. We show how expectation maximisation can be used to learn the parameters of the proposed model, and run both synthetic and real-world experiments to show the model’s potential.

  • 31.
    Bentz, Emma
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Raffler, Marlies
    Institut für Geschichte; Geisteswissenschaftliche Fakultät der Karl-Franzens-Universität Graz.
    National Museums in Austria2011In: Building National Museums in Europe 1750–2010: Conference proceedings from EuNaMus, European National Museums: Identity Politics, the Uses of the Past and the European Citizen, Bologna 28-30 April 2011. EuNaMus Report No. 1 / [ed] Peter Aronsson & Gabriella Elgenius, Linköping: Linköping University Electronic Press, 2011, p. 21-46Conference paper (Other academic)
    Abstract [en]

    The nineteenth and twentieth centuries saw much of the nation-making and museum creation discussed in this paper, Austria underwent a whole spectrum of constitutions: monarchy, republic, autocracy and part of a totalitarian state and then again, since the ten years spanning 1945-1955, a republic. This dramatic history is also reflected in the changing borders of Austria – from a geographically extensive mosaic of the Habsburg Monarchy (as a Vielvölkerstaat; a multinational realm) to today’s Austria that is made up by nine federal states with approximately 8,4 million inhabitants in total. Thus, an important question concerns what the term ‘national’ may refer to in the specific case of Austria.

    Turning to developments in the museum sphere, the period of the Austrian Empire (1804- 1867) and the Austro-Hungarian Empire (1867-1918) – especially in the Vormärz - was marked by royal initiatives regarding existing collections. A process of centralizing and ordering collections, that hitherto had been dispersed, began and thus it was only now that these began to be regarded as entities. In the imperial city of Vienna, splendid buildings were constructed to host these collections during the second half of the century, e.g. the “twin museums” Kunsthistorisches Museum (KM, Museum of Art History) and Naturhistorisches Museum (NM, Museum of Natural History), emerging from the imperial collections. However, the two museums were never described as ‘national’, since the Vielvölkerstaat had to represent all peoples. The same can be said about the Austrian Museum für Volkskunde (The Austrian Museum of Folk Life and Art), inaugurated in 1894.

    Outside Vienna, a number of regional/provincial museums were founded; the Joanneum in Graz/Styria (1811) being perhaps the most prominent example. The Joanneum serves as a case study, highlighting topics such as the development of a national and regional identity and private initiatives in the museum sphere. The question of the relation between region and nation, what is centre and what is periphery is important in this context. According to Raffler, these museums were Janus-faced, being both cosmopolitan and regional as the museums presented both history of humanity and nationally specific knowledge (Raffler 2007: 344f).

    With the disintegration of the Habsburgian monarchy, museums became state-owned. Often characterized as a time of crisis, a new self-image and identity had to be invented. The term ‘Austria’ was however, regarded with scepticism since it hitherto primarily had been associated with the dynasty of the Habsburgs. Rituals and festivities rooted in the empire had to be replaced and attempts were made to promote music as the factor that made the geographically highlyshrunken Austria into a world nation (Mattl 1995). The period also included art restoration claims, posed by former members of the multinational realm.

    During NS-rule, megalomaniac projects included new museums, here exemplified with plans for (but never completed) Fuehrer-museums in Linz and Vienna. Austria’s role during this period of fascism has been much disputed, affecting later plans and discussions for museum projects dealing with this period: Austria as a victim vs. Austria as willing partner? Further post-war discussions on identity include the status assigned with the signing of the state treaty in 1955 that has been endlessly celebrated; and the constructing of a tale of new beginnings forming a unifying national symbol and stepping stone for new national myths.

    In this paper, the question of the existence of an Austrian national museum, focusing on twentieth century history, is addressed by highlighting recent discussions surrounding the plans for a Haus der Geschichte (House of History). Until today, it is – interestingly enough – the Heeresgeschichtliches Museum (The Museum of Military History) that presents the most complete history of Austria, although ending with the end of WWII. Since the late 1990s, various proposals for a new museum have been made and the project has been intensely debated among politicians and historians. Still today, no consensus exists regarding exactly what to exhibit and why; neither is the question of where (in Vienna) such a museum should be located settled. The debates are interesting since they reveal the still-existing tensions regarding how to tackle and present central topics such as the Ständestaat (authoritarian rule 1934-38), the Austrian civil war, the Anschluß and Austria’s role during the NS-reign. Many historians fear a political instrumentalization and a toosmooth version of the violent past that constitutes one aspect of Austrian twentieth century history. Finally, Marlies Raffler has put forward an interesting thought: could it be that an Austrian national museum is equal to the sum of existing Landesmuseen (i.e. museums located in the federal states of Austria), together making up a kind of ‘disloziertes Nationalmuseum’ (dislocated Nationalmuseum) today?

  • 32.
    Bjurström, Erling
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Tema Q och samtidens kulturalisering2012In: Kulturaliseringens samhälle: Problemorienterad kulturvetenskaplig forskning vid Tema Q 2002-2012 / [ed] Svante Beckman, Linköping University Electronic Press, 2012, p. 51-63Conference paper (Other academic)
  • 33.
    Bladh, Mats
    Linköping University, Department of Thematic Studies, Technology and Social Change. Linköping University, The Institute of Technology.
    Technology and Behaviour in the Use of Electricity2010In: Proceedings of the Sustaining Everyday Life Conference: April 22-24 2009, Campus Norrköping, Sweden / [ed] Kristina Karlsson & Kajsa Ellegård, Linköping: Linköping University Electronic Press , 2010, p. 105-116Chapter in book (Other academic)
    Abstract [en]

    The course of the day is an interesting unit of investigation in research on everyday life because in it most rhythms, conflicts and wonderful things are experienced. There is at least one part of the day where an inevitable conflict between the basic human needs of sleep and food and practical personal arrangements on one hand and on the other hand the demand from the modern way of earning ones' living collide - the morning. Morning hours are experienced by many people to be the most hectic hours of the day. There is time for necessary activities between waking up and starting to work, but the "window of opportunities (prism)" open for alternative handling and for something going wrong is limited. What character has the morning activity pattern of people's daily life? In my presentation I will problematise the result, i.e. what activities appear in the mornings of men and women in different ages? I illustrate the morning activity patterns in a population by using a method, VISUAL-TimePAcTS, and look for sequences of activities constituting a collective activity pattern of the population.

  • 34.
    Blomkvist, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Clatworthy, Simon
    Linköping University.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Ways of seeing the design material of service2016In: Service Design Geographies. Proceedings of the ServDes.2016 Conference / [ed] Nicola Morelli, Amalia de Götzen, Francesco Grani, Linköping: Linköping University Electronic Press, 2016, Vol. 125, p. 1-13Conference paper (Refereed)
    Abstract [en]

    This paper makes a contribution to the current conceptualisation of service as a design material from three different perspectives. We use definitions of the term material, the connection with service logic and the techniques that service designers use to discuss ways to understand service from a design perspective. Service designers have tools for working with components, things, locations, actions, procedures, interactions and experiences at their disposal. Service designers work with a meta-material for the most part, which is a material representation of the services they are (re-)designing. Unlike fields where the material is worked into a finished form, the material of service design traverses between the concrete and the abstract throughout the design process.

  • 35.
    Blomkvist, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Fjuk, Annita
    Linköping University.
    Sayapina, Vasilisa
    Linköping University.
    Low threshold service design: desktop walkthrough2016In: Service design geographies: Proceedings of the ServDes.2016 Conference / [ed] Nicola Morelli, Amalia de Götzen, Francesco Grani, Linköping: Linköping University Electronic Press, 2016, p. 154-166Conference paper (Refereed)
    Abstract [en]

    This paper introduces the first academic characterisation of the desktop walkthrough technique. Desktop walkthrough is considered here as a service design technique using a collaboratively built miniature environment to construct knowledge about a specific service. It is further examined as a technique for rapidly exploring and designing a service concept. The analytical lens of the paper is outlined from socio-cultural theories on human development where any human action is developed from, and emulated by, social interactions and the intellectual and physical artefacts herein. The analysis shows that desktop walkthrough enabled teams to design a holistic service journey with low threshold usage, and provided a means for exploring and designing the complexity of customer journeys and the backstage organizational processes.

  • 36.
    Blomkvist, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Service Prototyping According to Service Design Practitioners2010In: Exchanging knowledge, Linköping: Linköping University Electronic Press, 2010, Vol. 2, p. 1-11Conference paper (Refereed)
    Abstract [en]

    Current trends in service design research include case studies and similar approaches that aspire to reveal what the practice of service design looks like. The understanding of how service design is performed can serve as a base for future research into more specific research endeavours. One area where knowledge is said to be lacking is service prototyping, part of which knowledge this paper attempts to contribute. The main data source for the paper is findings from in-depth interviews with six practicing service designers from some of the more well-known design agencies. The informants consider service prototyping to be a very important part of their work that allows them to learn and communicate about design ideas. The practitioners’ account of how they work with prototypes indicates that service prototyping has different meanings and that the practice of prototyping is very diverse. The interviews also uncover a number of areas that, according to the designers, might prove extra challenging for service prototyping to be successful. This research shows that there is much potential in the not yet fully formed practice of service prototyping.

  • 37.
    Blomkvist, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Overkamp, Tim
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Research in the first four service design and innovation (ServDes) conferences2016In: Service design geographies: Proceedings of the ServDes.2016 Conference / [ed] Nicola Morelli, Amalia de Götzen, Francesco Grani, Linköping: Linköping University Electronic Press, 2016, p. 167-179Conference paper (Refereed)
    Abstract [en]

    In this paper we take a closer look at the papers published during the first four Service design and innovation (ServDes) conferences and sources that the authors of those papers have referenced. The analysis uses the academic search engine Scopus and the references found in the conferences’ Proceedings. In total 206 authors have contributed to the 105 research papers presented at ServDes, and 53% of all ServDes papers have been referenced at a later ServDes. ServDes authors are informed by research published mainly after 1999 (79,2%), primarily within the fields of Business, Computer Science and Engineering. We also look at what authors publish their research at ServDes and the percentage of self-referencing (27%) as well as within-conference referencing (2,4% of references) to examine the progression within the field through the research published at ServDes.

  • 38.
    Blomkvist, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Åberg, Johan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Service Walkthroughs to Support Service Development2012In: ServDes.2012 Conference Proceedings Co-Creating Services; The 3rd Service Design and Service Innovation Conference, Espoo, Finland, 2012, p. 43-52Conference paper (Refereed)
    Abstract [en]

    Service design is said to be a holistic design approach. This is evident in most service design literature and textbooks but still services are prototyped by focusing on separate parts rather than whole service journeys. In this paper we propose a technique called service walkthrough that can be used to represent whole services. We explore what information can be generated using the technique and how useful it is. We found that the technique helped identify the flow of information, problematic areas, and design opportunities. The prototype was generally well received by the participants. In addition to earning about information, the technique also revealed insights about time and interdependencies of the various parts of the service. Some remarks are also made about when the service walkthrough can be used in the service development process and considerations concerning the fidelity of service walkthroughs.

  • 39.
    Braun, Robert
    et al.
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.
    Asghar, Adeel
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    Pop, Adrian
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Fritzson, Dag
    SKF Group Technology, AB SKF.
    An Open-Source Framework for Efficient Co-simulation of Fluid Power Systems2017In: Proceedings of 15th Scandinavian International Conference on Fluid Power, SICFP’17, Linköping: Linköping University Electronic Press, 2017, Vol. 144, p. 393-400Conference paper (Refereed)
    Abstract [en]

    Simulation of fluid power systems typically requires models from multiple disciplines.Achieving accurate load dynamics for a system with complex geometry, for example, mayrequire both a 1D model of the hydraulic circuit and a 3D multi-body model. However, mostsimulation tools are limited to a single discipline. A solution to these kinds of problems isco-simulation, where different tools are coupled and simulated together. Co-simulation canprovide increased accuracy, improved modularity and facilitated collaboration between dif-ferent organizations. Unfortunately, tool coupling typically requires tedious and error-pronemanual work. It may also introduce numerical problems. For these reasons, co-simulation isoften avoided as long as possible. These problems have been addressed by the developmentof an open-source framework for asynchronous co-simulation. Simulation tools can be inter-connected through a stand-alone master simulation tool. An extensive range of tools is alsosupported via the Functional Mockup Interface standard. A graphical user interface has beenimplemented in the OpenModelica Connection Editor. System models can be created andedited from both a schematic view and a 3D view. Numerical robustness is enforced by theuse of transmission line modelling. A minimalistic programming interface consisting of onlytwo functions is used. An example model consisting of a hydraulic crane with two arms, twoactuators and a hanging load is used to verify the framework. The composite model consistsof nine multi-body models, one hydraulic system model and a controller. It is shown thatmodels from various simulation tools can be replaced with a minimal amount of user input.

  • 40.
    Broman, David
    et al.
    Linköping University, Department of Computer and Information Science.
    Fritzson, Peter
    Linköping University, Department of Computer and Information Science.
    Higher-Order Acausal Models2008In: EOOLT 2008 / [ed] Peter Fritzson, François Cellier, David Broman, Linköping University Electronic Press , 2008, p. 59-69Conference paper (Other academic)
    Abstract [en]

    Current equation-based object-oriented (EOO) languages typically contain a number of fairly complex language constructs for enabling reuse of models. However, support for model transformation is still often limited to scripting solutions provided by tool implementations. In this paper we investigate the possibility of combining the well known concept of higher-order functions, used in standard functional programming languages, with acausal models. This concept, called Higher-Order Acausal Models (HOAMs), simplifies the creation of reusable model libraries and model transformations within the modeling language itself. These transformations include general model composition and recursion operations and do not require data representation/reification of models as in metaprogramming/metamodeling. Examples within the electrical and mechanical domain are given using a small research language. However, the language concept is not limited to a particular language, and could in the future be incorporated into existing commercially available EOO-languages.

  • 41.
    Brusman, Mats
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Stadens kulturer2012In: Kulturaliseringens samhälle: Problemorienterad kulturvetenskaplig forskning vid Tema Q 2002-2012 / [ed] Svante Beckman, Linköping: Linköping University Electronic Press, 2012, p. 127-129Conference paper (Other academic)
  • 42.
    Buffoni, Lena
    et al.
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Pop, AdrianLinköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.Thiele, BernhardLinköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Proceedings of the 56th Conference on Simulation and Modelling (SIMS 56): October, 7-9, 2015, Linköping University, Sweden2015Conference proceedings (editor) (Refereed)
    Abstract [en]

    Welcome

    The 56th Conference on Simulation and Modelling will be held in Linköping, Sweden. Linköping is one of Sweden’s fastest growing cities. The population is constantly increasing and will soon surpass 150 000 inhabitants. It is currently Sweden’s fifth largest city and a part of the expansive region Twin Cities of Sweden. Linköping has long been characterized by world-class high technology in the fields of aviation, IT and the environment. There is a strong force of innovation especially in Mjärdevi Science Park—one of Europe’s leading technology parks, and at the highly ranked university, which stands for excellence and entrepreneurship.

    SIMS is the Scandinavian Simulation Society with members from the five Nordic countries Denmark, Finland, Norway, Sweden and Iceland. The SIMS history goes back to 1959. The goal of SIMS is to further the science and practice of modeling and simulation in all application areas and be a Scandinavian forum for information interchange among modeling and simulation professionals and non-professionals in Denmark, Finland, Norway and Sweden as well as a channel for information exchange between the Scandinavian modeling and simulation community and the international modeling and simulation communities.

    The ambition of the SIMS is to bring the field of modeling and simulation technology to a variety of application fields from energy extraction to building and automotive industries, resulting in more sustainable and ecological systems and reducing energy consumption and waste production. The scientific program includes technical sessions with submitted and invited papers and will cover broad aspects of simulation, modeling and optimization.

    The focus of the conference is split evenly between papers on simulation and optimization in a variety of applied contexts spanning domains such as oil extraction, automotive and building industries and more methodological papers on tools and technologies for simulation and modeling.

    This year we wanted to emphasize the importance of reducing the gap between state of the art methodologies and tools and industrial applications. To this end a number of invited talks, papers and tutorials were centered on tools and methodologies for successful modeling in an industrial context.

    The format of the conference is somewhat changed compared to previous years. This year we have dedicated a half-day before the traditional two-day conference to tutorials, with 3 tutorials presenting stateof- the-art simulation tools.

    Conference highlights:

    • 4 Keynote speeches
    • 40 papers in 2 parallel tracks
    • 3 tutorials
    • Electronic proceedings including all papers and some associated Modelica libraries and models

    Finally, we want to acknowledge the support we received from the conference board and program committee as well as from the SIMS board. Special thanks to our colleagues at this year’s organizers at Linköping University, especially to Åsa Kärrman, and Tina Malmström from Grand Travel Group. The support from the conference sponsors is gratefully acknowledged. Last but not least, thanks to all authors, keynote speakers, and presenters for their contributions to this conference. We wish all participants an enjoyable and inspiring conference.

    Linköping, September 1, 2015

    Lena Buffoni, Adrian Pop and Bernhard Thiele

  • 43.
    Cellier, François
    et al.
    ETH Zürich.
    Broman, DavidLinköping University, Department of Computer and Information Science.Fritzson, PeterLinköping University, Department of Computer and Information Science.Lee, EdwardUniversity of California, Berkeley.
    Proceedings of the 4th International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools2011Conference proceedings (editor) (Other academic)
  • 44.
    Collste, Göran
    Linköping University, Department of Culture and Communication, Centre for Applied Ethics. Linköping University, Faculty of Arts and Sciences.
    Is a generous Immigration Policy a Way to Rectify for Colonial Injustices?2012In: Proceedings from The 49th Societas Ethica Annual Conference 2012, Theme: Ethics and Migration, August 23–26, 2012, Lucian Blaga University Sibiu, Romania / [ed] Göran Collste, Linköping: Linköping University Electronic Press, 2012, p. 71-77Conference paper (Refereed)
    Abstract [en]

    Migration from former colonies to former colonial powers represents a large part of the 20th century migration. The question discussed in this article is if a generous immigration policy on behalf of persons from former colonies is an appropriate means for the European nations and former colonial powers to compensate for colonial injustices.

  • 45.
    Collste, Göran
    Linköping University, Department of Culture and Communication, Arts and Humanities. Linköping University, Department of Culture and Communication, Centre for Applied Ethics. Linköping University, Faculty of Arts and Sciences.
    Proceedings from The 49th Societas Ethica Annual Conference 2012, Theme: Ethics and Migration, August 23–26, 2012, Lucian Blaga University Sibiu, Romania2012Conference proceedings (editor) (Refereed)
    Abstract [en]

    August 23-26 2012 Societas Ethica, the European Society for Research in Ethics held its 49th annual conference. The conference theme was “Ethics and Migration” and the setting the Romanian city Sibiu in Transylvania. The site for the conference mirrored the theme. Transylvania has during the centuries been a place for waves of migration, for example, already in the 12th Century it received many German immigrants. It is also today a home for hundreds of thousands of Roma people.

    Migration is so far a neglected issue within applied ethics. This is surprising due to both the seriousness of the issue and the ethical dilemmas it poses. With this conference the Societas Ethica, wished to bolster the ethical discussion on migration. The conference channels illustrated the range of ethical issues that migration raises:

    Many people migrate from poverty and oppression but are stopped at the borders of the rich nations in Europe and America; what are their obligations towards the migrants? How is migration related to global justice?

    Migrants and refugees are vulnerable. They have lost their communities and citizenships. What are the rights of migrants and refugees? Who is obliged to protect their rights?

    Fortress Europe has unfortunately become a reality. With surveillance, fences and barbwire Europe tries to keep the migrants at a distance. But, what are the moral obligations of the individual European nations and of the European Union? What do we owe them?

    Immigrants who have successfully entered Europe are often met with hostility and end up in segregated communities. What are the ethical challenges of segregation and conflicts based on religion and ethnicity?

    The unknown person, the different, the Other, is often despised and persecuted. European history shows ample of evidence of this fact. How should minorities, like for example the Roma people, be respected and included by the majority populations and by the states?

    The first key note speech was held by Dr Gernot Haupt, Alpen-Adria University Klagenfurt over the theme “Antigypsism and migration”. Haupt showed with plenty of examples how the Roma people in Europe have been victims of constant policies of exclusion; from repression to extermination culminating in the Holocaust in the 1930s and 1940s. Haupt expressed critique of the present attitude of the majority in societies with Roma minorities. Their message is; it is always they, the Roma, who must change, not we!

    Dr Matthew Gibney from Oxford University addressed the topic “Refugees and justice between states”. He noticed that presently the majority of the world’s refugees go to neighboring poor countries and hence that the refugee situation exacerbate the global inequalities. How can this change? Are not for example nations responsible for creating massive streams of refugees, like the United States after the attack on Iraq in 2003, obliged to host the resulting refugees?

    Dr Michelle Becka from University of Frankfurt am Main talked about “Ethics on the border. Towards a theological horizon in the discourse of migration”. She emphasized that being a stranger is an important theme in the biblical tradition; migrants are in focus for theological ethics. When the humanity of migrants is reduced due to oppression and segregation it is crucial for theological ethics to emphasize the need for solidarity.

    In the last keynote speech Dr Oliver Bakewell from Oxford University talked over the theme “The relationships between migration and human development”. His lecture focused on the potential positive effects of migration for development through Diasporas communities with links to their homelands, remittances, i.e. the financial support that immigrants send back to their home countries, etc.

    More than 40 participants, among them many young scholars from all over Europe but also from India, the United States, Hong Kong and Australia, presented high quality paper. As the only European society open for scholars in moral philosophy, theological ethics and applied ethics, Societas Ethica has a great potential to influence and stimulate the ethical discussions in Europe.

  • 46.
    Collste, Göran
    et al.
    Linköping University, Department of Culture and Communication, Arts and Humanities. Linköping University, Department of Culture and Communication, Centre for Applied Ethics. Linköping University, Faculty of Arts and Sciences.
    Manzeschke, ArneInstitut Technik-Theologie-Naturwissenschaften an der Ludwig-Maximilians-Universität München, Germany.
    Proceedings from the Societas Ethica Annual Conference 2011, The Quest for perfection. The Future of Medicine/Medicine of the future, August 25-28, 2011, Universita della Svizzera Italiana, Lugano, Switzerland2011Conference proceedings (editor) (Refereed)
    Abstract [en]

    SOCIETAS ETHICA (European Society for Research in Ethics) is an organisation for the exchange of scholarly work in ethics. SOCIETAS ETHICA is bilingual: English and German are the official languages for conferences and publications. Each year the SOCIETAS ETHICA organises a conference (usually at the end of August). Members and non-members are invited to give a lecture or prepare a paper on the theme of the year. The theme of the year reflects on a current subject of interest and debate in either applied ethics or fundamental ethics. The theme of the 2011 conference was: The Quest for perfection. The Future of Medicine/Medicine of the future.

  • 47.
    Dahlin, Johanna
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Möller, Per
    Linköping University, Department for Studies of Social Change and Culture, Department of Culture Studies – Tema Q. Linköping University, Faculty of Arts and Sciences.
    Kamrater, det är vi2012In: Kulturaliseringens samhälle: Kulturaliseringens samhälle : problemorienterad kulturvetenskaplig forskning vid Tema Q 2002-2012 / [ed] Svante Beckman, Linköping University Electronic Press, 2012, p. 134-137Conference paper (Other academic)
  • 48.
    Dahlstedt, Magnus
    Linköping University, REMESO - Institute for Research on Migration, Ethnicity and Society. Linköping University, Department of Social and Welfare Studies. Linköping University, Faculty of Arts and Sciences.
    Coachning som bekännelse?: Föräldracoachning och fostran av neoliberala medborgare2009In: Kultur ~ natur: Konferens för kulturstudier i Sverige, 15-17 juni / [ed] Nyblom, Andreas, Linköping: Linköping University Electronic Press , 2009, 1, p. 367-385Chapter in book (Other academic)
    Abstract [sv]

    Föräldracoachning är något av ett tidens tecken. Föräldracoachning återspeglar rådande idéer om hur föräldrar bör tänka och leva för att bli ”ansvarstagande”. I följande artikel analyseras SOS familj, en svensk tv-serie som sändes på TV3 hösten 2008. Med utgångspunkt i den teoretisering kring makt och styrning som har utvecklats i Michel Foucaults fotspår analyseras de föräldraideal som tv-serien förmedlar, som en form av governmentality – styrning genom mentalitet. Ett viktigt inslag i den föräldracoachning som äger rum i SOS familj är dess intermedialitet. Programmet är inte endimensionellt i den meningen att det enbart riktar sig till de tittare som sitter i tv-soffan. Programmet kan snarare ses som en mångfacetterad ansamling av medierade teknologier, med ett stort mått av interaktivitet, där var och en på egen hand har möjlighet att på egen hand söka tips och råd. På så sätt mångfaldigas inte bara de tekniker varigenom föräldrar bearbetas. Samtidigt mångfaldigas de arenor där sådan bearbetning utspelas.

  • 49.
    Dell'Amico, Alessandro
    et al.
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Carlsson, Marcus
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Norlin, Erik
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Sethson, Magnus
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
    Investigation of a Digital Hydraulic Actuation System on an Excavator Arm2013In: 13th Scandinavian International Conference on Fluid Power, Linköping University Electronic Press, 2013, p. 505-511Conference paper (Refereed)
    Abstract [en]

    Digital hydraulics is an ongoing trend that offers many interesting advantages and possibilities. Digital refers to that the system output is discrete, e.g. using an on/off valve with only discrete values or a finite amount of flow steps available. The advantages mentioned when compared to analogue systems are better performance, robust and fault tolerant, and amplitude independent bandwidth. On the other side noise and pressure pulsations must be handled, the physical size can be a problem, and the system requires complicated control. When considering control of linear motion, there are mainly two branches, controlling the flow with several parallel connected on/off valves, which generates discrete output flow values, or switching valves, which in theory can generate any mean output flow. The latter only requires one valve for each flow path but the demand for fast valves is very high, while the former requires many valves but avoids high frequent switching. With the introduction of a multi-chamber cylinder, secondary control is now also possible for linear motion. This paper is a first step in the investigation of the system applied to an excavator arm. The cylinder has four chambers, each with different area. Three pressure lines are used and a valve-pack of 27 on/off valves. The valve-pack connects the three pressure lines with each chamber generating 81 available force steps. The scope has been to start out with relative simple control of the velocity of the cylinder. To handle unnecessary switching of valves, different penalty strategies were tested. The results are promising where relatively smooth control could be achieved at the same time challenges with the system were identified. Next step is to investigate the force transients due to different capacitance in all four chambers as well as mode control for better accuracy. Energy potential compared to original system remains to investigate as well.

  • 50.
    Eek, Magnus
    et al.
    Saab Aeronautics, Linköping, Sweden.
    Karlén, Johan
    Saab Aeronautics, Linköping, Sweden.
    Ölvander, Johan
    Linköping University, Department of Management and Engineering, Machine Design. Linköping University, Faculty of Science & Engineering.
    A Framework for Early and Approximate Uncertainty Quantification of Large System Simulation Models2015In: Proceedings of the 56th Conference on Simulation and Modelling (SIMS 56), October, 7-9, 2015, Linköping University, Sweden, Linköping: Linköping University Electronic Press, 2015, p. 91-104Conference paper (Refereed)
    Abstract [en]

    Uncertainty Quantification (UQ) is vital to ensure credibility in simulation results and to justify model-based design decisions – especially in early development phases when system level measurement data for traditional model validation purposes are scarce. Central UQ challenges in industrial applications are computational cost and availability of information and resources for uncertainty characterization. In an attempt to meet these challenges, this paper proposes a framework for early and approximate UQ intended for large simulation models of dynamical systems. A Modelica simulation model of an aircraft environmental control system including a liquid cooling circuit is used to evaluate the industrial applicability of the proposed framework.

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