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  • 501.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Simonson, Margaret
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Blomqvist, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Fire effluent contaminants, predictive models, and gap analysis2014Report (Refereed)
  • 502.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Simonson, Margaret
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Blomqvist, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Fire effluent contaminants, predictive models, and gap analysis (EcoTox Project)2014In: Brandposten, no 50, p. 26-27Article in journal (Other (popular science, discussion, etc.))
  • 503.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Sjöström, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Vylund, Lotta
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Fasth, Sabiha
    Climate impact on forest fire risk in Sweden2015In: 14th International Conference Fire and Materials 2015, 2015, , p. 804-817Conference paper (Other academic)
  • 504.
    An, Jungxue
    et al.
    KTH Royal Institute of Technology, Sweden.
    Jin, Chunsheng
    Sahlgrenska Academy, Sweden; University of Gothenburg, Sweden.
    Dėdinaitė, Andra
    RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry and Materials. KTH Royal Institute of Technology, Sweden.
    Holgersson, Jan
    Sahlgrenska Academy, Sweden; University of Gothenburg, Sweden.
    Karlsson, Niclas G.
    Sahlgrenska Academy, Sweden; University of Gothenburg, Sweden.
    Claesson, Per M.
    RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry and Materials. KTH Royal Institute of Technology, Sweden.
    Influence of Glycosylation on Interfacial Properties of Recombinant Mucins: Adsorption, Surface Forces, and Friction2017In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 33, no 18, p. 4386-4395Article in journal (Refereed)
    Abstract [en]

    Interfacial properties of two brush-with-anchor mucins, C-P55 and C-PSLex, have been investigated at the aqueous solution/poly(methyl methacrylate) (PMMA) interface. Both are recombinant mucin-type fusion proteins, produced by fusing the glycosylated mucin part of P-selectin glycoprotein ligand-1 (PSLG-1) to the Fc part of a mouse immunoglobulin in two different cells. They are mainly expressed as dimers upon production. Analysis of the O-glycans shows that the C-PSLex mucin has the longer and more branched side chains, but C-P55 has slightly higher sialic acid content. The adsorption of the mucins to PMMA surfaces was studied by quartz crystal microbalance with dissipation. The sensed mass, including the adsorbed mucin and water trapped in the layer, was found to be similar for these two mucin layers. Atomic force microscopy with colloidal probe was employed to study surface and friction forces between mucin-coated PMMA surfaces. Purely repulsive forces of steric origin were observed between mucin layers on compression, whereas a small adhesion was detected between both mucin layers on decompression. This was attributed to chain entanglement. The friction force between C-PSLex-coated PMMA is lower than that between C-P55-coated PMMA at low loads, but vice versa at high loads. We discuss our results in terms of the differences in the glycosylation composition of these two mucins.

  • 505.
    An, Junxue
    et al.
    KTH Royal Institute of Technology, Sweden.
    Liu, Xiaoyan
    KTH Royal Institute of Technology, Sweden.
    Dedinaite, Andra
    RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry and Materials. KTH Royal Institute of Technology, Sweden.
    Korchagina, Evgeniya
    University of Montreal, Canada.
    Winnik, Francoise M.
    University of Montreal, Canada; National Institute for Materials Science, Japan; University of Helsinki, Finland.
    Claesson, Per M.
    RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry and Materials. KTH Royal Institute of Technology, Sweden.
    Dedinaite, Andra
    RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry and Materials. KTH Royal Institute of Technology, Sweden.
    Effect of solvent quality and chain density on normal and frictional forces between electrostatically anchored thermoresponsive diblock copolymer layers2017In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 487, p. 88-96Article in journal (Refereed)
    Abstract [en]

    Equilibration in adsorbing polymer systems can be very slow, leading to different physical properties at a given condition depending on the pathway that was used to reach this state. Here we explore this phenomenon using a diblock copolymer consisting of a cationic anchor block and a thermoresponsive block of poly(2-isopropyl-2-oxazoline), PIPOZ. We find that at a given temperature different polymer chain densities at the silica surface are achieved depending on the previous temperature history. We explore how this affects surface and friction forces between such layers using the atomic force microscope colloidal probe technique. The surface forces are purely repulsive at temperatures <40 °C. A local force minimum at short separation develops at 40 °C and a strong attraction due to capillary condensation of a polymer-rich phase is observed close to the bulk phase separation temperature. The friction forces decrease in the cooling stage due to rehydration of the PIPOZ chain. A consequence of the adsorption hysteresis is that the friction forces measured at 25 °C are significantly lower after exposure to a temperature of 40 °C than prior to heating, which is due to higher polymer chain density on the surface after heating.

  • 506.
    An, Junxue
    et al.
    KTH Royal Institute of Technology, Sweden.
    Liu, Xiaoyan
    KTH Royal Institute of Technology, Sweden.
    Linse, Per
    Lund University, Sweden.
    Dedinaite, Andra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber. KTH Royal Institute of Technology, Sweden.
    Winnik, Françoise M.
    University of Montreal, Canada; National Institute for Materials Science, Japan.
    Claesson, Per M.
    RISE, SP – Sveriges Tekniska Forskningsinstitut. KTH Royal Institute of Technology, Sweden.
    Tethered Poly(2-isopropyl-2-oxazoline) Chains: Temperature Effects on Layer Structure and Interactions Probed by AFM Experiments and Modeling2015In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 31, no 10, p. 3039-3048Article in journal (Refereed)
    Abstract [en]

    Thermoresponsive polymer layers on silica surfaces have been obtained by utilizing electrostatically driven adsorption of a cationic–nonionic diblock copolymer. The cationic block provides strong anchoring to the surface for the nonionic block of poly(2-isopropyl-2-oxazoline), referred to as PIPOZ. The PIPOZ chain interacts favorably with water at low temperatures, but above 46 °C aqueous solutions of PIPOZ phase separate as water becomes a poor solvent for the polymer. We explore how a change in solvent condition affects interactions between such adsorbed layers and report temperature effects on both normal forces and friction forces. To gain further insight, we utilize self-consistent lattice mean-field theory to follow how changes in temperature affect the polymer segment density distributions and to calculate surface force curves. We find that with worsening of the solvent condition an attraction develops between the adsorbed PIPOZ layers, and this observation is in good agreement with predictions of the mean-field theory. The modeling also demonstrates that the segment density profile and the degree of chain interpenetration under a given load between two PIPOZ-coated surfaces rise significantly with increasing temperature.

  • 507.
    Andalen, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Förbehandlingens inverkan på sprutbetongs vidhäftning1988Report (Refereed)
  • 508.
    Andalen, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Provningsmetoder för sprutbetong för reparationsändamål1992Report (Refereed)
  • 509.
    Andalen, Anders
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Ewertson, Cathrine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Comparison of Nordic methods for determination of the compressive strength of high-strength concrete. Nordtest project 975-91.1995Report (Refereed)
  • 510.
    Andalen, Anders
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Lundgren, Monica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Referensprovning av frostbeständighet provad enligt SS 13 72 44 på danska och svenska markbetongprodukter1992Report (Refereed)
  • 511.
    Andalen, Anders
    et al.
    SP – Sveriges Provnings- och Forskningsinstitut.
    Lundgren, Monica
    Test methods for foamed concrete for road and foundation construction1999Report (Refereed)
  • 512.
    Andalen, Anders
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Lupin, Tang
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Ohlsson, Göran
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Application of the strain-cylinder test for calibration of compression test machines1998Report (Refereed)
  • 513.
    Andalen, Anders
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Malmström, Kent
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Inverkan av halkbekämpningsmedel på betong1990Report (Refereed)
  • 514.
    Andersdotter, Maria
    RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
    Brikettering och torkning av energigräs1984Report (Refereed)
  • 515. Andersdotter, Maria
    et al.
    Danfors, Birger
    RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
    Brytning av frästorv med jordbruksredskap1984Report (Refereed)
  • 516.
    Anderson, Christoffer
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
    Lundin, Gunnar
    RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
    Andersson, Fredrik
    Rensning på gårdsnivå kan öka spannmålens värde, SLA2004Report (Refereed)
  • 517.
    Anderson, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    SmartBatt simulations of fire performance2013In: Brandposten, no 48, p. 21-Article in journal (Other (popular science, discussion, etc.))
  • 518.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Boström, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Internationell konferens om brandsäkerhet hos fasader2016In: Brandposten, no 54, p. 5-5Article in journal (Other academic)
  • 519.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Boström, Lars
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Chiva, Roman
    Efectis, France.
    Guillaume, Eric
    Efectis, France.
    Colwell, Sarah
    BRE, UK.
    Hofmann, Anja
    BAM, Germany.
    Toth, Peter
    EMI, Hungary.
    EUROPEAN APPROACH TO ASSESS THE FIRE PERFORMANCE OF FAÇADES2019In: Interflam 2019, proceedings / [ed] Stephen Grayson, Interscience Communications, 2019, Vol. 15, p. 213-Conference paper (Refereed)
    Abstract [en]

    Several attempts have been made in the past to develop a European harmonized testing and assessment method for façades before the European commission decided to publish a call for tender on the topic. A project consortium from five countries (Sweden, UK, France, Germany and Hungary) applied to the call for tender and was contracted to develop a European approach to assess the fire performance of façades. 24 sub-contractors and 14 stakeholder entities were part of the project.

    The objective of the European project was to address a request from the Standing Committee of Construction (SCC) to provide EC Member States regulators with a means to regulate the fire performance of façade systems based on a European approach agreed by SCC. In addressing this objective, the project team was asked to consider a number of issues which are presented and discussed.

    The initial stages of this project were focused on:

    • establishing a register of the regulatory requirements in all Member States in relation to the fire performance of façade systems, and
    • to identify those Member States who have regulatory requirements for the fire performance façade systems which go beyond the current EN 13501 (reaction to fire and fire resistance) classification systems and to collate the details of these additional requirements. [6]

    After having confirmed the regulatory needs the following steps were discussed:

    • a testing and classification methodology based on BS 8414 - Fire performance of external cladding systems series and DIN 4102-20 - Fire behaviour of building materials and building components - Part 20: Complementary verification for the assessment of the fire behaviour of external wall claddings to address the identified key performance and classification characteristics [4] [5]
    • a verification and validation proposal, in the form of a round robin programme to support the development of the proposed testing and classification methodologies.
    • an alternative test method which was developed on the basis of the comments from stakeholders during the project

    Several hundreds of comments were received during the project and were implemented in the development.

    This paper is a short overview of results the two-year development work, which Final Report published by the European Commission in 2018 [1].

  • 520.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Boström, Lars
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Jansson McNamee, Robert
    Brandskyddslaget, Sweden.
    Fire Safety of Façades2017Report (Other academic)
    Abstract [en]

    Façade fires do not occur often (in comparison to other major structure fires) but in recent years there have been a number of spectacular façade fires in high rise building such as the recent fire in Grenfell Tower, London.Under-ventilated compartment fires may cause flames to spill out of window openings impinging the façade, thus devastating façade fires may start on one floor leap-frogging to adjacent floors. It is therefore necessary to limit or delay fire spread to higher floors. Requirements built on large scale fire testing may decrease the risk of these types of fires provided that the building is constructed according to the specifications provided by the manufacturer. Different countries have different regulations and tests for façades. New materials and façade systems are continuously introduced which might call for an update of these tests and regulations.This report summarizes experimental and modelling efforts in characterizing the fire safety of façades using the Swedish SP Fire 105 and the British BS 8414 methods. Recent experimental results and modelling is presented exploring the variations in the fire exposure, fire load and the fuel used. The fire source and the heat exposure to the façade are characterized by additional temperatures measured by plate thermometers while some other aspects are only treated in the numerical study such as a change in fuel. It is found that the results from the BS 8414 are largely affected by wind and climate since the experimental test was performed outdoors, moreover fire spread on wooden façades is also briefly discussed.In order to obtain a deeper understanding of the test methods and the results CFD (Computational Fluid Dynamics) Modelling in FDS was used. The models were based on measured input parameters including uncertainties and an assessment of the impact of said uncertainties. The models could often reproduce the experimentally found temperatures qualitatively and quantitatively. A detailed discussion on the regulations and the tests that lead to the SP Fire 105 test method is also presented. Summaries of the façade testing methods and conditions in other European countries are presented in the appendices.Finally possible ways forward in updating the façade testing and regulations are discussed.

  • 521.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Boström, Lars
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Jansson McNamee, Robert
    Brandskyddslaget, Sweden.
    Milovanović, Bojan
    University of Zagreb, Croatia.
    Experimental comparisons in façade fire testing considering SP Fire 105 and the BS 8414‐12018In: Fire and Materials, ISSN 0308-0501, E-ISSN 1099-1018, Vol. 42, no 5Article in journal (Refereed)
    Abstract [en]

    A comparison between full‐scale façade fire tests where SP Fire 105 and BS 8414‐1 were used regarding repeatability and the use of modeling to discern changes in the setups is presented. Two test series according to BS 8414‐1 were repeated outside using the same façade systems on 2 different days, whereas for the SP Fire 105 a set of common façade systems in Sweden were tested indoors. In particular, the results show that the wind around the test setup may have a significant impact on the tests and that the heat exposure to the façade surface will depend on the thickness of the test specimen where an increased temperature in front of the façade, and a decreased temperature on the façade 2.1 m above the fire room, is observed experimentally. The heat exposure to the test specimen varies to a more limited extent when an uncontrollable free burning fire source is used (in this study heptane and wood, respectively) and that this variation increases when wind is present.

  • 522.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Boström, Lars
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Jansson McNamee, Robert
    Brandskyddslaget AB, Sweden.
    Milovanović, Bojan
    University of Zagreb, Croatia.
    Modelling of fire exposure in facade fire testing2017In: Fire and Materials, ISSN 0308-0501, E-ISSN 1099-1018, Vol. 42, no 5, p. 475-483Article in journal (Refereed)
    Abstract [en]

    In this paper, a comparative simulation study on 3 large‐scale facade testing methods, namely,the SP Fire 105, BS 8414‐1, and the ISO 13785‐2 methods, is presented. Generally goodcorrespondence between simulations and experimental data has been found, provided thatthermal properties of the facade material and heat release rates are known; however, thecorrespondence deviates in close proximity of the fire source. Furthermore, a statistical ensemblefor evaluating the effects stemming from uncertainty in input data is used. Here, it wasfound using this statistical ensemble that the variability was smaller in the ISO 13785‐2compared to the BS 8414‐1 method. The heat release rates (HRR) used in the simulations wereadopted from measurements except for the ISO method where the information in the standardwas used to approximate the HRR. A quantitative similarity between the HRR in the ISOmethod and the British method was found.

  • 523.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Boström, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Jansson McNamee, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Milovanović, Bojan
    University of Zagreb, Croatia.
    Uncertainties in façade fire tests - Measurements and modeling2016In: MATEC Web of Conferences, 2016, article id 03002Conference paper (Refereed)
    Abstract [en]

    In this paper a comparison between test and modelling results are performed for two large-scale façade fire testing methods, namely SP Fire 105 and BS 8414-1. In order to be able to compare tests and modelling the uncertainties have to be quantified both in the test and the modelling. Here we present a methodology based on deterministic sampling to quantify uncertainties in the modelling input. We find, in general good agreement between the models and the test results. Moreover, temperatures estimated by plate thermometers is indicated to be less sensitive to small variations in model input and is thus suitable for these kind of comparisons.

  • 524.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Boström, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Jansson, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Milovanovic, Bojan
    University of Zagreb, Croatia.
    Experimental assessment of repeatability in facade fire testing2016In: Interflam 2016: Conference Proceedings, 2016, p. 653-658Conference paper (Other academic)
  • 525.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Boström, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Jansson, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Milovanovic, Bojan
    University of Zagreb, Croatia.
    Modeling of fire exposure in facade fire testing2016In: Interflam 2016: Conference Proceedings, 2016, p. 1115-1126Conference paper (Other academic)
  • 526.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Boström, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Jansson, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Milovanović, Bojan
    University of Zagreb, Croatia.
    Fire dynamics in Façade fire tests: Measurement, modeling and repeatability2015In: Applications of Structural Fire Engineering, Czech Technical University in Prague , 2015Conference paper (Refereed)
    Abstract [en]

    Presented is a comparison between full-scale façade tests where SP Fire 105 and BS 8414-1 were used regarding repeatability and the use of modelling to discern changes in the set-ups. Results show that the air movements around the test set-up (the wind) may have a significant impact on the tests and that the heat exposure to the façade surface will among other depend on the thickness of the test specimen. Also demonstrated was that good results could be obtained by modelling of the façade fire tests giving us the opportunity to use these methods to determine the effect of a change in the experimental setup.

  • 527.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Jansson, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Façade Fire Tests – Measurements and Modeling2013In: Proceedings of the 1st International Seminar for Fire Safety of Facades, 2013Conference paper (Refereed)
  • 528.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Jansson, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Façade fire tests - Measurements and modeling2013In: 1st International Seminar for Fire Safety of Facades, FSF 2013, 2013, , p. 2003Conference paper (Refereed)
  • 529.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Jansson, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Fire dynamics in facade fire tests: Measurements and modelling2013Conference paper (Refereed)
  • 530.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Lange, David
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Boström, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Applying uncertainty quantification in modelling of a steel beam exposed to fire2016In: Structures in Fire: Proceedings of the Ninth International Conference, 2016, p. 925-932Conference paper (Other academic)
    Abstract [en]

    Modelling of structures exposed to fires is prone to be heavily influenced by uncertainties in geometrical parameters, thermal material data as well as uncertainties in the boundary conditions. Assessing the effects and influences in variations of all the uncertain parameters is often cumbersome and traditional methods are impractical thus modelling of the total uncertainty is needed. Uncertainty Quantification with deterministic sampling is one possible way ahead to accommodate and evaluating the effects of uncertainties with as few repeated simulations as possible. In this paper the uncertainties stemming from error in the input data and boundary conditions on one example of a steel beam under four point bending exposed to fire is evaluated.

  • 531.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Lange, David
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Modelling in WFDS of a Wildfire Scenario2016In: Book of Abstracts Nordic Fire & Safety Days 2016, 2016, p. 33-33Conference paper (Other academic)
  • 532.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Lange, David
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Lönnermark, Anders
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Mindykowski, Pierrick
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Modelling in wfds of a wildfire scenario2017In: 15th International Conference and Exhibition on Fire and Materials 2017, Interscience Communications Ltd , 2017, p. 765-776Conference paper (Refereed)
    Abstract [en]

    In this paper a coarse graining process is used to subsequently model large wildland fires, starting from a model of a single tree. The models are created using Wildland Urban Interface Fire dynamics Simulator (WFDS), and it is here found that reasonable fire spread in small forests can be obtained although the results are quite dependent on grid resolution as well as moisture content. In most realistic scenarios the computational volume is rather large yielding massive amounts of data. In using WFDS a rather small grid size is needed to appropriately model the fire spread this will be a severely limiting factor in creating large models.

  • 533.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Larsson, Fredrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Andersson, Petra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Mellander, Bengt-Erik
    Fire Spread due to Thermal Runaway in a Lithium-ion Battery Cell2014In: Proceedings from 3rd International Conference on Fire in Vehicles - FIVE 2014, 2014, , p. 267-270Conference paper (Other academic)
  • 534.
    Anderson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Larsson, Fredrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Andersson, Petra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Mellander, Bengt-Erik
    Thermal modeling of fire propagation in lithium-ion batteries2015In: 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV), 2015, , p. 15-0073Conference paper (Other academic)
  • 535. Anderson, Johan
    et al.
    Sjöström, Johan
    Andersson, Petra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Amon, Francine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Albrektsson, Joakim
    Experimental and Numerical Characterization of an Electrically Propelled Vehicles Battery Casing Including Battery Module2014In: Journal of Thermal Science and Engineering Applications, Vol. 6, no 4, p. 41015-Article in journal (Refereed)
    Abstract [en]

    This paper demonstrates the possibility to predict a battery system's performance in a fire resistance test according to the new amendment of United Nations Regulation No. 100 "Uniform Provisions Concerning the Approval of Vehicles with Regard to Specific Requirements for the Electric Power Train" (R100) based on careful measurements of the physical properties of the casing material, as well as modeling of the battery modules and computer simulations. The methodology of the work consists of estimating the heat transfer coefficients by using a gasoline pool fire model in the computational fluid dynamics (CFD) software FIRE DYNAMICS SIMULATOR (FDS), followed by finite-element (FE) calculations of the temperatures in the battery.

  • 536.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport.
    Sjöström, Johan
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Lönnermark, Anders
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Persson, Henry
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Larsson, Ida
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Assessment of Self-Heating in Wood Pellets by FE Modelling2017Conference paper (Refereed)
    Abstract [en]

    The self-heating process in a laboratory scale experiment has been modelled using the Comsol Multiphysics software. In the simulations the gas flow and air movement in the volume and heat diffusion in the bulk were taken into account however only one reaction in the pellets bulk is considered. The input data is found from measurements of the reaction chemistry and the heat transfer properties. It is found that all relevant physics is needed in order to obtain reasonable predictions in particular the heat transfer between the bulk and the gas is important but also condensation and evaporation of moisture.   

  • 537.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Sjöström, Johan
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Temple, Alastair
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Charlier, Marion
    ArcelorMittal, Sweden.
    Xu, Dai
    University of Edinburgh, UK.
    Welch, Stephen
    University of Edinburgh, UK.
    Rush, David
    University of Edinburgh, UK.
    FDS SIMULATIONS AND MODELLING EFFORTS OF TRAVELLING FIRES IN A LARGE ELONGATED COMPARTMENT2019In: Interflam 2019, proceedings / [ed] Stephen Grayson, Interscience Communications, 2019, Vol. 15, p. 2085-Conference paper (Refereed)
    Abstract [en]

    The present paper investigates a travelling fire scenario in an elongated structure (Length 18 m x width 6 m x height 3 m) with a controlled fire source of six pans filled with diesel (width 4 m x length 0.5 m). The fire spread is controlled manually by initiating fires subsequently in the pools. Fire Dynamics Simulator (FDS) is used to a-priori investigate variations in geometry, material data and fire load whereas simulations using the final design were performed after the test. The input to the model beside fire source and geometry are thermal material data. The FDS simulation were used to determine the appropriate size of the downstands (2 m from the ceiling in the final design) on the side to create a sufficiently one-dimensional fire spread. The post test simulations indicate that although there are a lot of variations not included in the model similar results were obtained as in the test.

  • 538. Anderson, R.
    Characteristics of the bacterial flora isolated during spontaneous lactic acid-fermentation of carrots and red beets.1984In: Lebensmittel-Wissenschaft und Technologie, Vol. 17, no 5, p. 282-286Article in journal (Refereed)
  • 539.
    Andersons, J.
    et al.
    University of Latvia, Latvia.
    Modniks, J.
    University of Latvia, Latvia; Ventspils University College, Latvia.
    Joffe, Roberts
    RISE, Swerea, SICOMP. Luleå University of Technology, Sweden.
    Madsen, B.
    DTU Technical University of Denmark, Denmark.
    Nättinen, K.
    Bemis Flexible Packaging Europe, Finland.
    Apparent interfacial shear strength of short-flax-fiber/starch acetate composites2016In: International Journal of Adhesion and Adhesives, ISSN 0143-7496, E-ISSN 1879-0127, Vol. 64, p. 78-85Article in journal (Refereed)
    Abstract [en]

    The paper deals with an indirect industry-friendly method for identification of the interfacial shear strength (IFSS) in a fully bio-based composite. The IFSS of flax fiber/starch acetate is evaluated by a modified Bowyer and Bader method based on an analysis of the stress-strain curve of a short-fiber-reinforced composite in tension. A shear lag model is developed for the tensile stress-strain response of short-fiber-reinforced composites allowing for an elastic-perfectly plastic stress transfer. Composites with different fiber volume fractions and a variable content of plasticizer have been analyzed. The apparent IFSS of flax/starch acetate is within the range of 5.5-20.5 MPa, depending on composition of the material. The IFSS is found to be greater for composites with a higher fiber loading and to decrease with increasing content of plasticizer. The IFSS is equal or greater than the yield strength of the neat polymer, suggesting good adhesion, as expected for the chemically compatible constituents.

  • 540.
    Andersons, J.
    et al.
    University of Latvia.
    Sparniņš, E.
    University of Latvia.
    Nyström, Birgitha
    RISE - Research Institutes of Sweden, Materials and Production, SICOMP.
    Joffe, Roberts
    RISE - Research Institutes of Sweden, Materials and Production, SICOMP.
    Scale effect of the tensile strength of flax-fabric-reinforced polymer composites2011In: Journal of reinforced plastics and composites (Print), ISSN 0731-6844, E-ISSN 1530-7964, Vol. 30, no 23, p. 1969-1974Article in journal (Refereed)
    Abstract [en]

    The development of UD natural fiber composites, considered for application as structural materials, necessitates evaluation of the scale effect of their strength. Alignment of the fibers in flax bast fiber composites can be achieved by employing textile reinforcement, such as yarns and fabrics. Cutting specimens for mechanical tests out of such textile-reinforced composite plates results in a complex non-uniform reinforcement structure at their edges, which may affect the strength of specimens. Scale effect of the tensile strength in the fiber direction of flax-fabric-reinforced composites is studied in the current work. A model accounting for both volume and edge effect of the specimens on their tensile strength is proposed. © The Author(s) 2011.

  • 541.
    Andersson, A
    SIK – Institutet för livsmedel och bioteknik.
    Bacillus cereus : adhesion ability to biological and non-biological surfaces, enterotoxins, characterization1998Report (Refereed)
  • 542.
    Andersson, A
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Institutet för livsmedelsforskning.
    Bacillus cereus, strategy for survival : a litterature review1995Report (Refereed)
  • 543.
    Andersson, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Bäst mäta utan fel2006In: Process Nordic, no 11Article in journal (Other academic)
  • 544.
    Andersson, Anders
    RISE - Research Institutes of Sweden, ICT, SICS.
    Capacity Study of Statistical Multiplexing for IP Telephony2000Report (Other academic)
    Abstract [en]

    Transmitting telephone calls over the Internet causes problems not present in current telephone technology such as packet loss and delay due to queueing in routers. In this undergraduate thesis we study how a Markov modulated Poisson process is applied as an arrival process to a multiplexer and we study the performance in terms of loss probability. The input consists of the superposition of independent voice sources. The predictions of the model is compared with results obtained with simulations of the multiplexer made with a network simulator. The buffer occupancy distribution is also studied and we see how this distribution changes as the load increases.

  • 545.
    Andersson, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Dosin - A new Pump Device. Its Construction and Function.2007In: Uppsala Journal of Medical Science, Vol. 112, no 1, p. 83-93Article in journal (Other academic)
    Abstract [en]

    ABSTRACT The research and development of the Dosin® and the medical injection system in which it is used was initiated in response to a demand for a new and improved method of delivering fluids to patients. The key requirement was to make the use of refillable syringes obsolete in a cost- effective and user-friendly alternative. Most syringes, despite their accurate delivery quotas, have a limited volume that necessitates frequent monitoring and filling or changing. This very act is time consuming and potentially dangerous in inexperienced hands. The new principle of the device makes it capable of delivering (medical) fluids of various consistencies in extremely precise amounts regardless of the fluid viscosity. The outlet of the Dosin® goes through another innovation, the bubble detector, which detects any change in direction of a light beam that passes through the content of the outlet. Thus, should an air bubble enter the outflow and hence be about to enter the blood stream of a patient, the flow of fluid will halt immediately and an alarm will notify the user of the problem.The cyclic flow is useful in interventional radiology since it prevents clotting and increases the mixing with the blood. The flow rate varies from 0.03 mL/s to 5 mL/s and it is recommended to use fluid with a viscosity lower than 3 mPa.s. The outlet pressure is recommended below 300 mm Hg. The Dosin® must be replaced after each patient, alternatively after maximum 24h continuous use.

  • 546.
    Andersson, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Gastrointestinal Radiological Investigations with a New Pump Device: Experimental and Clinical Experiences2008In: Ups J Med Sci., Vol. 113, no 1, p. 73-8Article in journal (Other academic)
    Abstract [en]

    In an earlier paper (1) a new pump device for medical applications was described. This enabled a continuous flow of saline, barium contrast agent and gases. We now report further study of this device: The use of gases was experimentally studied to give a basis for use in CT-colonography. We also report experiences from injection of barium contrast agent via a naso-duodenal tube for radiological investigation of the small intestine in patients with gastrointestinal suffering. The radiation exposure to the x-ray staff was reduced. The investigation procedure was standardised and shortened.

  • 547.
    Andersson, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Inventory and basic evaluation of field calibration methods for volume and flow meters Nordtest 1590-022004Report (Refereed)
  • 548.
    Andersson, Anders
    RISE - Research Institutes of Sweden, ICT, SICS.
    SAGA -- Syntax Analyzer Generator for Agents1995Report (Other academic)
    Abstract [en]

    LALR(1) parser generators in conjunction with imperative programming languages is the standard solution for parsing applications. Contrary to popular belief, this situation is not entirely satisfactory. With imperative tools like Yacc, it is difficult to add actions to a grammar without introducing conflicts. Also, LALR(1) is not powerful enough to meet the needs of languages like C++. We argue that LALR(1) parsing in conjuction with concurrent constraint programming is an interesting option that solves the former problem. We also show how deep guards and don't-know non-determinism can be exploited to solve the latter problem. These ideas have been incorporated in the Saga parser generator described in this report. Saga is an integrated generator for lexical analyzers and parsers. It is based on AKL, a multiparadigm programming language based on a concurrent constraint framework. It is intended both as a research tool to demonstrate the power offered by concurrent constraints, and as a practical tool for the Agents programming system. As a practical tool, Saga features many improvements over tools like Yacc. For example, Saga offers powerful syntax, elegant reporting and resolution of conflicts and powerful error handling in the generated syntax analyzers.

  • 549.
    Andersson, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Viktigt att välja rätt FLÖDESMÄTARE2008In: Energi & miljö, no 11, p. 90-Article in journal (Other (popular science, discussion, etc.))
  • 550. Andersson, Anders
    et al.
    Holmsten, Magnus
    RISE - Research Institutes of Sweden, Safety and Transport, Measurement Science and Technology.
    Mätteknik för processindustrin2017 (ed. 5)Book (Other academic)
    Abstract [sv]

    Hur varmt är det i tanken? Vilket tryck ger pumpen? Det är två exempel på frågor som kan besvaras med processmätteknik.Att mäta är att veta, sägs det, men det gäller ocksåatt veta hur bra man mäter! Felaktiga mätresultat skaparproblem, osäkerhet och kan rent av vara farliga.I den här boken får du hjälp att undvika mätfel, du fårlära dig om olika mätprinciper och hur mätare av olika slagbäst används och monteras. Främst handlar det om temperatur,tryck, flöde och nivå men även annat som finns i enprocessindustri. Du får kunskap om kalibrering, spårbarhetoch mätosäkerhet, och samtidigt om saker runt omkringmätinstrumenten, till exempel CE-märkning, elstörningar,explosionsskydd, skrivregler, signalöverföring, standardermed mera

    Innehållsförteckning:  1: Mätteknik 2: Lästips – Gör så här 3: Mått i historien 4: CE-märkning 5: SI-systemet 6 :Signalöverföring 7: Säkerhet 8: Mätosäkerhet A 9: Fysik och matematik 10: Mättekniska begrepp 11: Temperaturmätning 12: Tryckmätning 13: Flödesmätning 14:Nivåmätning 15: Värmemätning 16: Vakter och larm 17:Serviceinstrument 18:Konduktivitetsmätning 19: pH-mätning 20: Densitetsmätning 21: Vägning 22: Fuktmätning 23: Mätosäkerhet B 24: Kalibrering 25: Pumpar och ventiler 26: Rörledningar 27: Mätosäkerhet C 28: Tabeller 29:Index

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