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  • 451.
    Altskär, Annika
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Institutet för livsmedel och bioteknik.
    Andersson, R.
    Boldizar, A.
    Koch, K.
    Stading, Mats
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Institutet för livsmedel och bioteknik.
    Rigdahl, M.
    Some effects of processing on the molecular structure and morphology of thermoplastic starch2008In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 71, no 4, p. 591-597Article in journal (Refereed)
    Abstract [en]

    Hydroxypropylated and oxidised potato starch (HONPS) was used together with glycerol and water to produce thermoplastic starch. The amount of glycerol was kept constant at 22 parts by weight per 100 parts of dry starch. The thermoplastic starch was converted into films/sheets using three different processing techniques; casting, compression moulding and film blowing. The last two methods represent typical thermoplastic conversion techniques requiring elevated processing temperatures. By means of size-exclusion chromatography, it was found that compression moulding and film blowing led to some degradation of high-molecular weight amylopectin as well as of high-molecular weight amylose-like molecules. The degradation was significantly less pronounced for the cast films. The morphology of the specimens was quite complex and phase separations on different levels were identified. In the cast films and, to a lesser extent, in the compression-moulded specimens, a fine network structure could be distinguished. Such a structure could however not be ascertained in the film-blown material and this is discussed in terms of the thermo-mechanical treatment of the starch materials. © 2007 Elsevier Ltd. All rights reserved.

  • 452.
    Altskär, Annika
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Food and Bioscience, Structure Design.
    Wallin, M.
    Nordstierna, L.
    Andersson, M.
    Meso-ordered PEG-based particles2015In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 31, p. 13-16Article in journal (Refereed)
    Abstract [en]

    We report on the formation of meso-ordered hydrogel particles by cross-linking poly(ethylene glycol) diacrylate (PEG-DA) in the presence of surfactants in a confined environment. The results demonstrated that well-ordered mesoporous hydrogel particles having a pore size of about 5 nm could be formed. It is suggested that these meso-ordered hydrogel particles might have unique drug-delivery capabilities

  • 453. Alvhage, Bengt
    et al.
    Lydén, Carina
    SP – Sveriges Provnings- och Forskningsinstitut.
    Sandström, Matz
    SP – Sveriges Provnings- och Forskningsinstitut.
    SP Småföretag Tekniköverföring under 1997-19992000Report (Refereed)
  • 454. Amadio, Roberto
    et al.
    Dam, Mads
    RISE - Research Institutes of Sweden, ICT, SICS.
    A Proof System for the pi-calculus1996Report (Other academic)
    Abstract [en]

    We study the problem of specifying and verifying properties of pi-calculus processes while relying on a bisimulation semantics. As our property specification language we use a version of the modal mu-calculus adapted to the pi-calculus. We show that the logical language is sufficiently expressive to characterize by means of a finite formula a process up to any approximation of the bisimulation relation. We consider the problem of checking that a process of the pi-calculus satisfies a specification expressed in this modal mu-calculus. We develop an algorithm which is sound in general, and complete for processes having a finite reachability property. Finally, we present a proof system which can be applied to prove non-recursive properties of arbitrary processes. We show that the system is complete on the non-recursive fragment of the logical language.

  • 455. Amadio, Roberto
    et al.
    Dam, Mads
    RISE - Research Institutes of Sweden, ICT, SICS.
    Reasoning about Higher-Order Processes1994Report (Other academic)
    Abstract [en]

    We address the specification and verification problem for process calculi such as Chocs, CML and Facile where processes or functions are transmissible values. Our work takes place in the context of a static treatment of restriction and of a bisimulation-based semantics. As a paradigmatic and simple case we concentrate on (Plain) Chocs. We show that Chocs bisimulation can be characterized by an extension of Hennessy-Milner logic including a constructive implication, or function space constructor. This result is a non-trivial extension of the classical characterization result for labelled transition systems. In the second part of the paper we address the problem of developing a proof system for the verification of process specifications. Building on previous work for CCS we present an infinitary sound and complete proof system for the fragment of the calculus not handling restriction.

  • 456.
    Amani, Pegah
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Food and Bioscience, Environment.
    Aschemann-Witzel, Jessica
    de Hooge, Ilona
    Bech-Larsen, Tino
    Oostindjer, Marije
    Consumer-Related Food Waste: Causes and Potential for Action2015In: Sustainability, Vol. 7, p. 6457-77Article in journal (Refereed)
  • 457. Ambjörnsson, H.A.
    et al.
    Östberg, L.
    Schenzel, K.
    Larsson, P.T.
    RISE, Innventia.
    Germgård, U.
    Enzyme pretreatment of dissolving pulp as a way to improve the following dissolution in NaOH/ZnO2014In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 68, no 4, p. 385-391Article in journal (Refereed)
  • 458. Ameur, Adam
    et al.
    Aurell, Erik
    Carlsson, Mats
    RISE, Swedish ICT, SICS, Computer Systems Laboratory.
    Westholm, Jakub Orzechowski
    Global gene expression analysis by combinatorial optimization2004In: In Silico Biology, ISSN 1434-3207, Vol. 4Article in journal (Refereed)
    Abstract [en]

    Generally, there is a trade-off between methods of gene expression analysis that are precise but labor-intensive, e.g. RT-PCR, and methods that scale up to global coverage but are not quite as quantitative, e.g. microarrays. In the present paper, we show how how a known method of gene expression profiling (K. Kato, Nucleic Acids Research 23, 3685-3690 (1995)), which relies on a fairly small number of steps, can be turned into a global gene expression measurement by advanced data post-processing, with potentially little loss of accuracy. Post-processing here entails solving an ancillary combinatorial optimization problem. Validation is performed on in silico experiments generated from the FANTOM data base of full-length mouse cDNA. We present two variants of the method. One uses state-of-the-art commercial software for solving problems of this kind, the other a code developed by us specifically for this purpose, released in the public domain under GPL license.

  • 459. Amin, G
    et al.
    Sandberg, M O
    RISE, Swedish ICT, Acreo.
     Zainelabdin, A
     Zaman, S
     Nur, O
    Willander, M
    Scale-up synthesis of ZnO nanorods for printing inexpensive ZnO/polymer white light-emitting diode2012In: Journal of Materials Science_x000D_, Vol. 47, p. 4726-31Article in journal (Refereed)
  • 460.
    Amiryarahmadi, N
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Kropp, W
    Division of Applied Acoustics, Chalmers University of Technology.
    Larsson, K
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Application of LMS algorithm to measure low-frequency transient forces from human walking2016In: Acta Acoustica united with Acustica, ISSN 1610-1928, E-ISSN 1861-9959, Vol. 102, no 1, p. 23-34Article in journal (Refereed)
    Abstract [en]

    Measurement and modeling of low frequency ground reaction forces (GRFs) from human walking have been the subjects of research in different fields from biomechanics to civil engineering and structural dynamics. Many of the existing models are developed based on experiments which alter natural walking by for example presence of force transducers, limitations in the speed and path of walking and replacing the real floor with a transducerfacilitated measurement rig. These alterations result in contact forces which do not represent real GRFs. In this study, a time-domain inverse measurement method based on LMS algorithm is used to measure low-frequency (<100 Hz) forces induced by human footsteps. The LMS-based force identification method is first validated for low-frequency excitations with less complexity in number of excitation positions and frequency content compared with the footsteps. The method is then applied to measure ground reaction forces created by human walking.

  • 461.
    Amiryarahmadi, N
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Kropp, W
    Division of Applied Acoustics, Chalmers University of Technology.
    Larsson, K
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Identification of low-frequency forces induced by footsteps on lightweight floors2016In: Acta Acoustica united with Acustica, ISSN 1610-1928, E-ISSN 1861-9959, Vol. 102, no 1, p. 45-57Article in journal (Refereed)
    Abstract [en]

    Despite many advantages of wooden buildings, low-frequency noise disturbance, mainly from human footsteps on timber floors, is a major hindrance for widespread application of wood in multi-storey buildings. In many cases the impact noise evaluations of the wooden floors according to ISO 140-7 and ISO 717-2 standards do not correspond to subjective experiences. This study aims to investigate the characteristics of footstep forces to support further studies related to discrepancies between standard evaluations and low-frequency noise disturbances in lightweight buildings. Transient footstep forces in vertical direction made by different walkers and different footwear on two floor structures were measured and compared. The vertical footstep forces were then compared with the impact forces made by a standard tapping machine. Analysis revealed that footstep forces contain large amplitudes at low frequencies (20 < f < 50) which are not included in the standard evaluation procedure. Therefore, by extending the frequency range of the standard measurements down to 20 Hz and designing an accurate adaptation term for evaluations, a better correlation between standard impact noise evaluations and acoustic performance of the lightweight buildings might be achieved.

  • 462.
    Amiryarahmadi, Nata
    et al.
    Akustik (Eta).
    Wendin, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Mat- och måltidsvanor samt önskningar kring detta2014Report (Refereed)
    Abstract [sv]

    Enkätundersökning bland äldre

  • 463.
    Amon, Francine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Objective evaluation of imager performance2011In: Proceedings of the International Conference on Sensing Technology, 2011, , p. 47-52Conference paper (Refereed)
  • 464.
    Amon, Francine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Thermal Imagers, a powerful Tool for the fire Service2011In: Brandposten, no 44, p. 30-Article in journal (Other (popular science, discussion, etc.))
  • 465.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Andersson, Petra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Karlson, Ingvar
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Produktsäkerhet.
    Sahlin, Eskil
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Oorganisk kemi (Kmoo).
    Fire risks associated with batteries2012Report (Refereed)
  • 466.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Appel, Glenn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Sjöström, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Impact of climate change on forest fire risk in Sweden2014In: Brandposten, no 49, p. 41-Article in journal (Other (popular science, discussion, etc.))
  • 467.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Brandt, Jonas
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Effectiveness of Bus Engine Compartment Fire Suppression Systems2013In: Proceedings from Interflam 2013, 13th International Conference and Exhibition on Fire Safety,, 2013, , p. 289-294Conference paper (Refereed)
  • 468.
    Amon, Francine
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Gehandler, Jonatan
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Assessment of the environmental impact of warehouse fires and fire service response2017In: Fire and Materials 2017: 15th International Conference, London, UK: Interscience Communications, 2017, p. 433-442Conference paper (Refereed)
  • 469.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Stahl, Selim
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Development of an Environmental and Economic Assessment Tool (Enveco Tool) for Fire Events2016In: Brandposten, no 54, p. 32-Article in journal (Other academic)
  • 470.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Stahl, Selim
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Tomida, Mai
    Worcester Polytechnic Institute.
    Meacham, Brian
    Worcester Polytechnic Institute.
    Development of an Environmental and Economic Assessment Tool (Enveco Tool) for Fire Events2016Book (Other academic)
  • 471.
    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)
  • 472.
    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.))
  • 473.
    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)
  • 474.
    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.

  • 475.
    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.

  • 476.
    Andalen, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Förbehandlingens inverkan på sprutbetongs vidhäftning1988Report (Refereed)
  • 477.
    Andalen, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik.
    Provningsmetoder för sprutbetong för reparationsändamål1992Report (Refereed)
  • 478.
    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)
  • 479.
    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)
  • 480.
    Andalen, Anders
    et al.
    SP – Sveriges Provnings- och Forskningsinstitut.
    Lundgren, Monica
    Test methods for foamed concrete for road and foundation construction1999Report (Refereed)
  • 481.
    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)
  • 482.
    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)
  • 483.
    Andersdotter, Maria
    RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
    Brikettering och torkning av energigräs1984Report (Refereed)
  • 484. Andersdotter, Maria
    et al.
    Danfors, Birger
    RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
    Brytning av frästorv med jordbruksredskap1984Report (Refereed)
  • 485.
    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)
  • 486.
    Anderson, J.
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Boström, L.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    McNamee, R. J.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Milovanović, B.
    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. © 2016 Owned by the authors, published by EDP Sciences.

  • 487.
    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.))
  • 488.
    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-Article in journal (Other academic)
  • 489.
    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.

  • 490.
    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.

  • 491.
    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.
    Modeling 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.

  • 492.
    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.
    Experimental assessment of repeatability in facade fire testing2016Conference paper (Other academic)
  • 493.
    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.
    Modeling of fire exposure in facade fire testing2016Conference paper (Other academic)
  • 494.
    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)
  • 495.
    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)
  • 496.
    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)
  • 497.
    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 Steel Beam Exposed to Fire2016Conference paper (Other academic)
  • 498.
    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-Conference paper (Other academic)
  • 499.
    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.

  • 500.
    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)
78910111213 451 - 500 of 20512
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