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  • 101.
    Carlsson, Lennart
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Keramforskning i Japan - en reseberättelse.1996Report (Refereed)
  • 102.
    Carlsson, Lennart
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Mechanical characterisation and fractography of AC Cerama material machined in participating countries. (IEA Annex II, subtask 7)1996Report (Refereed)
  • 103.
    Carlsson, Lennart
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Report on mechanical characterization of ceramics within IEA, subtask V1993Report (Refereed)
  • 104.
    Carlsson, Lennart
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Ringprovning rörande förslag till CEN-standard fraktografi keramer2000Report (Refereed)
  • 105.
    Carlsson, Lennart
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Test method for ageing of ballast tank coatings2000Report (Refereed)
  • 106.
    Carlsson, Lennart (Endast 1 arkivex) BEGRÄNSAD SPRIDNING
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Mechanical characterization and fractographic investigations of silicon nitride IEA ANNEX II, Subtask V: Swedish summary report1993Report (Refereed)
  • 107. Carlsson, Lennart
    et al.
    Palm, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Determination of Flexibility and Fatigue Resistance of Aged Ballast Tank Coatings. Proposal for NORDTEST method2001Report (Refereed)
  • 108. Carlsson, Lennart
    et al.
    Palm, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Fatigue resistance of aged ballast tank coatings2001Report (Refereed)
  • 109.
    Carstens, Bodil B.
    et al.
    University of Queensland, Australia.
    Rosengren, K. Johan
    University of Queensland, Australia.
    Gunasekera, Sunithi
    Uppsala University, Sweden.
    Schempp, Stefanie
    Uppsala University, Sweden.
    Bohlin, Lars
    Uppsala University, Sweden.
    Dahlström, Mia
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Clark, Richard J.
    University of Queensland, Australia.
    Göransson, Ulf
    Uppsala University, Sweden.
    Isolation, characterization, and synthesis of the Barrettides: disulfide-containing peptides from the marine sponge Geodia barretti2015In: Journal of Natural Products, ISSN 0163-3864, E-ISSN 1520-6025, Vol. 78, no 8, p. 1886-1893Article in journal (Refereed)
    Abstract [en]

    Two disulfide-containing peptides, barrettides A (1) and B (2), from the cold-water marine sponge Geodia barretti are described. Those 31 amino acid residue long peptides were sequenced using mass spectrometry methods and structurally characterized using NMR spectroscopy. The structure of 1 was confirmed by total synthesis using the solid-phase peptide synthesis approach that was developed. The two peptides were found to differ only at a single position in their sequence. The three-dimensional structure of 1 revealed that these peptides possess a unique fold consisting of a long β-hairpin structure that is cross-braced by two disulfide bonds in a ladder-like arrangement. The peptides are amphipathic in nature with the hydrophobic and charged residues clustered on separate faces of the molecule. The barrettides were found not to inhibit the growth of either Escherichia coli or Staphylococcus aureus but displayed antifouling activity against barnacle larvae (Balanus improvisus) without lethal effects in the concentrations tested. (Figure Presented).

  • 110.
    Cedheim, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Additiver i polymera material: sammanställning av teknik för upparbetning, nedbrytning och kemisk analys1995Report (Refereed)
  • 111.
    Cervin, Nicholas Tchang
    et al.
    KTH Royal Institute of Technology, Sweden.
    Johansson, Erik
    Cellutech AB, Sweden.
    Benjamins, Jan-Willem
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science.
    Wågberg, Lars
    KTH Royal Institute of Technology, Sweden.
    Mechanisms behind the Stabilizing Action of Cellulose Nanofibrils in Wet-Stable Cellulose Foams2015In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 16, no 3, p. 822-831Article in journal (Refereed)
    Abstract [en]

    The principal purpose of the investigation was to clarify the mechanisms behind the stabilizing action of cellulose nanofibrils (CNFs) in wet-stable cellulose foams. Following the basic theories for particle-stabilized foams, the investigation was focused on how the surface energy of the stabilizing CNF particles, their aspect ratio and charge density, and the concentration of CNF particles at the air–water interface affect the foam stability and the mechanical properties of a particle-stabilized air–liquid interface. The foam stability was evaluated from how the foam height changed over time, and the mechanical properties of the interface were evaluated as the complex viscoelastic modulus of the interface using the pendant drop method. The most important results and conclusions are that CNFs can be used as stabilizing particles for aqueous foams already at a concentration as low as 5 g/L. The major reasons for this were the small dimensions of the CNF and their high aspect ratio, which is important for gel-formation and the complex viscoelastic modulus of the particle-filled air–water interface. The influence of the aspect ratio was also demonstrated by a much higher foam stability of foams stabilized with CNFs than of foams stabilized by cellulose nanocrystals (CNC) with the same chemical composition. The charge density of the CNFs affects the level of liberation within larger aggregates and hence also the number of contact points at the interface and the gel formation and complex viscoelastic modulus of the air–water interface. The charges also result in a disjoining pressure related to the long-range repulsive electrostatic pressure between particle-stabilized bubbles and hence contribute to foam stability.

  • 112.
    Charlène, Reverdy
    et al.
    CNRS, France; Grenoble Institute of Technology, France.
    Sedighi Moghaddam, Maziar
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Sundin, Mikael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Julien, Bras
    CNRS, France; Grenoble Institute of Technology, France.
    Superhydrophobic surfaces manufacturing with nanocellulose2016In: N.I.C.E. 2016 - The 3rd International Conference on Bioinspired and Biobased Chemistry & Materials, 2016Conference paper (Refereed)
    Abstract [en]

    Researchers in natural fibers see opportunities in superhydrophobicity for fabrics or paper. The first challenge with natural fiber is their high hydrophilicity when the second is the perpetual search for water born coating  in papermaking. These challenges were overcome by a one pot formulation comprising a latex binder, precipitated calcium carbonate and  fatty acids to give their hydrophobicity to pigments 1.  In this study, we want to go further by replacing the petro-sourced latex with a new kind of fibers that are cellulose nanofibers (CNF).

    Inspired by the Lotus leaf, superhydrophobic surfaces have been a center of interest in the last decade because of their high potential in industry for a variety of applications.  It is seen as the next generation of surface for anti-fouling and corrosive retardant in navy industry but also  in general  anti corrosive materials industry.  Now widely studied , mechanisms for manufacturing superhydrophobicity are well understood. Born from the alliance of low surface energy chemistry and physical structuration of surface, superhydrophobic materials give a water contact angle above 150° and a slidding angle below 10°.

  • 113.
    Claesson, Per
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Brandner, Birgit
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Dedinaite, Andra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    In situ confocal Raman micro-spectroscopy and electrochemicalstudies of mussel adhesive protein and ceria composite film on carbonsteel in salt solutions2013In: Electrochimica Acta, ISSN 0013-4686, E-ISSN 1873-3859, Vol. 107, p. 276-291Article in journal (Refereed)
  • 114.
    Colombo, Stefan
    et al.
    Uppsala University, Sweden.
    Brisander, Magnus
    XSpray Microparticles AB, Sweden.
    Haglöf, Jakob
    Uppsala University, Sweden.
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Andersson, Per
    XSpray Microparticles AB, Sweden.
    Østergaard, Jesper
    University of Copenhagen, Denmark.
    Malmsten, Martin
    Uppsala University, Sweden.
    Matrix effects in nilotinib formulations with pH-responsive polymer produced by carbon dioxide-mediated precipitation2015In: International Journal of Pharmaceutics, ISSN 0378-5173, E-ISSN 1873-3476, Vol. 494, no 1, p. 205-217, article id 15114Article in journal (Refereed)
    Abstract [en]

    Factors determining the pH-controlled dissolution kinetics of nilotinib formulations with the pH-titrable polymer hydroxypropyl methylcellulose phthalate, obtained by carbon dioxide-mediated precipitation, were mechanistically examined in acid and neutral environment. The matrix effect, modulating the drug dissolution, was characterized with a battery of physicochemical methodologies, including ToF-SIMS for surface composition, SAXS/WAXS and modulated DSC for crystallization characterization, and simultaneous UV-imaging and Raman spectroscopy for monitoring the dissolution process in detail. The hybrid particle formulations investigated consisted of amorphous nilotinib embedded in a polymer matrix in single continuous phase, displaying extended retained amorphicity also under wet conditions. It was demonstrated by Raman and FTIR spectroscopy that the efficient drug dispersion and amorphization in the polymer matrix were mediated by hydrogen bonding between the drug and the phthalate groups on the polymer. Simultaneous Raman and UV-imaging studies of the effect of drug load on the swelling and dissolution of the polymer matrix revealed that high nilotinib load prevented matrix swelling on passage from acid to neutral pH, thereby preventing re-precipitation and re-crystallization of incorporated nilotinib. These findings provide a mechanistic foundation of formulation development of nilotinib and other protein kinase inhibitors, which are now witnessing an intense therapeutic and industrial attention due to the difficulty in formulating these compounds so that efficient oral bioavailability is reached.

  • 115.
    Cooper, Peter K.
    et al.
    University of Newcastle, Australia.
    Li, Hua
    University of Newcastle, Australia.
    Rutland, Mark W.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science. KTH Royal Institute of Technology, Sweden.
    Webber, Grant B.
    University of Newcastle, Australia.
    Atkin, Rob
    University of Newcastle, Australia.
    Tribotronic control of friction in oil-based lubricants with ionic liquid additives2016In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 18, no 34, p. 23657-23662Article in journal (Refereed)
    Abstract [en]

    Atomic force microscopy (AFM) reveals that tribotronic control of friction using an external potential applied to a gold surface is possible for ionic liquid (IL) concentrations as low as 5 mol% in hexadecane. The IL used is trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate, in which both the cation and anion have surfactant-like structures, and is miscible with hexadecane in all proportions. For IL concentrations less than 5 mol% friction does not vary with applied potential, but for 5 mol% and above changing the potential changes the composition of the IL boundary layer from cation-enriched (negative potentials) to anion-enriched (positive potentials). As the lubricities of the cation-rich and anion-rich boundary layers differ, this enables active control of friction in oil-based lubricants.

  • 116.
    Dahlenborg, Hanna
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik. Lund University, Sweden.
    Millqvist-Fureby, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Bergenståhl, Björn
    Lund University, Sweden.
    Effect of particle size in chocolate shell on oil migration and fat bloom development2015In: Journal of Food Engineering, ISSN 0260-8774, E-ISSN 1873-5770, Vol. 146, p. 172-181Article in journal (Refereed)
    Abstract [en]

    The effects of chocolate shell particle size were investigated by means of its influence on rate of oil migration and fat bloom development. The particle size of the non-fat particles in the chocolate, i.e. sugar and cocoa particles was varied between 15, 22 and 40 μm. A novel set of analytical techniques was used and by combining migration results with surface topology results clear differences could be observed between the samples. At 23 °C storage the samples with a particle size of 15 μm showed higher rate of oil migration and further, the earliest development of fat bloom at the surface. This could be observed both macroscopically and microscopically. Thus, it appears as a larger specific surface area of the non-fat particles facilitates migration of filling oil, possibly due to a more heterogeneous and coarser crystal network with higher permeability. Molecular diffusion cannot explain the level of oil migration observed and, thus, convective flow is assumed to be an important contribution in addition to the molecular diffusion.

  • 117.
    Dahlenborg, Hanna
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut. Lund University, Sweden.
    Millqvist-Fureby, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Bergenståhl, Björn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor. Lund University, Sweden.
    Effect of shell microstructure on oil migration and fat bloom development in model pralines2015In: Food Structure, ISSN 2213-3291, Vol. 5, p. 51-65Article in journal (Refereed)
    Abstract [en]

    This study investigated the influence of shell microstructure on oil migration and fat bloom development in chocolate model systems. The microstructure of the model shells was varied by means of tempering or seeding cocoa butter and the addition of non-fat particles. Further, the impact of different storage conditions was studied. By using a set of novel analytical techniques the migration rate could be connected to the development of fat bloom at the surface. The non-seeded cocoa butter samples showed significantly higher rate of migration together with the highest rate of developed fat bloom, whereas the over-seeded cocoa butter samples showed low migration rate and low rate of fat bloom development. Addition of particles (sugar, cocoa powder and defatted cocoa powder) proved to have a significant impact on the microstructure, since these samples showed a substantially higher rate of migration and fat bloom development compared to seeded cocoa butter samples. Molecular diffusion could not explain the migration behaviour, thus, convective flow is suggested as an important contribution in addition to the molecular diffusion.

  • 118.
    Dahlström, Mia
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Sjögren, Martin
    Uppsala University, Sweden.
    Jonsson, Per R.
    University of Gothenburg, Sweden.
    Göransson, Ulf
    Uppsala University, Sweden.
    Lindh, Liselott
    Malmö University, Sweden.
    Arnebrant, Thomas
    Malmö University, Sweden.
    Pinori, Emiliano
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Elwing, Hans
    University of Gothenburg, Sweden.
    Berglin, Mattias
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Affinity states of biocides determine bioavailability and release rates in marine paints2015In: Biofouling (Print), ISSN 0892-7014, E-ISSN 1029-2454, Vol. 31, no 2, p. 201-210Article in journal (Refereed)
    Abstract [en]

    A challenge for the next generation marine antifouling (AF) paints is to deliver minimum amounts of biocides to the environment. The candidate AF compound medetomidine is here shown to be released at very low concentrations, ie ng ml(-1) day(-1). Moreover, the release rate of medetomidine differs substantially depending on the formulation of the paint, while inhibition of barnacle settlement is independent of release to the ambient water, ie the paint with the lowest release rate was the most effective in impeding barnacle colonisation. This highlights the critical role of chemical interactions between biocide, paint carrier and the solid/aqueous interface for release rate and AF performance. The results are discussed in the light of differential affinity states of the biocide, predicting AF activity in terms of a high surface affinity and preserved bioavailability. This may offer a general framework for the design of low-release paint systems using biocides for protection against biofouling on marine surfaces.

  • 119.
    de Bièvre, P, et al
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    An expanding International Measurement Evaluation Programme IMEP1997In: EUROLAB Newsletter, no 15, p. 9-10Article in journal (Other academic)
  • 120.
    Dedinaite, Andra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Hyaluronan and phospholipid association in biolubrication2013In: Biomacromolecules, Vol. 14, no 12, p. 4198–4206-Article in journal (Refereed)
  • 121.
    Dedinaite, Andra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Quartz Crystal Microbalance with Dissipation (QCM-D) studies of the viscoelastic response from a continuously growing grafted polyelectrolyte layer2013In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 408, p. 229-234Article in journal (Refereed)
  • 122.
    Dedinaite, Andra
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Claesson, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Comparison of a brush-with-anchor and a train-of-brushes mucin on poly(methyl methacrylate) surfaces: Adsorption, surface forces, and friction2014In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 15, no 4, p. 1515-1525Article in journal (Refereed)
  • 123.
    Dedinaite, Andra
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Claesson, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Kinetic and equilibrium aspects of adsorption and desorption of class II hydrophobins HFBI and HFBII at silicon oxynitride/water and air/water interfaces2013In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 29, no 8, p. 2683-2691Article in journal (Refereed)
  • 124.
    Dedinaite, Andra
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Claesson, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Nanostructured composite layers of mussel adhesive protein and ceria nanoparticles2013In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 29, no 30, p. 9551-9561Article in journal (Refereed)
  • 125.
    Dedinaite, Andra
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Claesson, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Salt- and pH-induced desorption: Comparison between non-aggregated and aggregated mussel adhesive protein, Mefp-1, and a synthetic cationic polyelectrolyte2013In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 408, no 1, p. 82-86Article in journal (Refereed)
  • 126.
    Dedinaite, Andra
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Claesson, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Temperature-dependent adsorption and adsorption hysteresis of a thermoresponsive diblock copolymer2014In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 30, no 15, p. 4333-4341Article in journal (Refereed)
  • 127.
    Dedinaite, Andra
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Rutland, Mark
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Claesson, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Low friction and high load bearing capacity layers formed by cationic-block-non-ionic bottle-brush copolymers in aqueous media2013In: Soft Matter, ISSN 1744-683X, E-ISSN 1744-6848, Vol. 9, no 22, p. 5361-5371Article in journal (Refereed)
  • 128.
    Demker, Ingvar
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Determination of mechanical comfort properties of floor coverings2009Report (Refereed)
    Abstract [en]

    In March 2002, the Swedish Work Environment Authority performed an inspection at Skottsundsbackens home for elderly in the municipality of Sundsvall. The Swedish Work Environment Authority came to the conclusion that the ergonomic problems many employees had experienced were related to the floor covering in the building. The municipality lodged an appeal, but in October 2005 the appeal was rejected by the Supreme Administrative Court of Sweden. In the decision you can read that “The Swedish Work Environment Authority points out that if the floor covering has got a suitable springiness or not can not be objectively judged, since there are no test methods for this”. In spite of this, the Swedish Work Environment Authority believes that the best way to minimise the risks of strain injuries is to replace the current floor covering with a softer floor covering. Since there are existing test methods to quantify properties of springiness (i.e. shock absorption and vertical deformation) for sport surfaces, the aim of this study has been to find out whether these methods can be applied to ordinary floor coverings. If it’s possible, this might be a way of objectively judge if a floor covering is suitable or not for a certain work activity. The test methods chosen were EN 14808 Surfaces for sports areas – Determination of shock absorption and EN 14809 Surfaces for sport areas – Determination of vertical deformation. The study could also bee seen as an inventory of what values that could be expected for ordinary floor coverings in Sweden. Another goal for the study was to find out whether or not it was possible to quantify the difference between the floor covering that was replaced at Skottsundsbacken and the softer one that was finally installed. The conclusions of the study were that the mentioned test methods are suitable for measuring mechanical comfort properties of floor coverings, exceptions made for homogeneous and heterogeneous floor coverings without any kind of foam backing. These floorings has got very little ability to absorb energy and the results from the measurements can not be used to discriminate between them. Keywords: Floor covering, comfort, shock absorption, springiness, vertical deformation, EN 14808, EN 14809

  • 129.
    Drake, Henrik
    et al.
    Linnaeus University, Sweden.
    Aström, Mats E.
    Linnaeus University, Sweden.
    Heim, Christine
    Georg-August University, Germany.
    Broman, Curt
    Stockholm University, Sweden.
    Aström, Jan
    CSC-IT Center for Science, Finland.
    Whitehouse, Martin
    Swedish Museum of Natural History, Sweden.
    Ivarsson, Magnus
    Swedish Museum of Natural History, Sweden.
    Siljeström, Sandra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Extreme 13 C depletion of carbonates formed during oxidation of biogenic methane in fractured granite2015In: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 6, article id 7020Article in journal (Refereed)
    Abstract [en]

    Precipitation of exceptionally 13C-depleted authigenic carbonate is a result of, and thus a tracer for, sulphate-dependent anaerobic methane oxidation, particularly in marine sediments. Although these carbonates typically are less depleted in 13C than in the source methane, because of incorporation of C also from other sources, they are far more depleted in 13C (δ13C as light as -69% V-PDB) than in carbonates formed where no methane is involved. Here we show that oxidation of biogenic methane in carbon-poor deep groundwater in fractured granitoid rocks has resulted in fracture-wall precipitation of the most extremely 13Cdepleted carbonates ever reported, δ13C down to -125% V-PDB. A microbial consortium of sulphate reducers and methane oxidizers has been involved, as revealed by biomarker signatures in the carbonates and S-isotope compositions of co-genetic sulphide. Methane formed at shallow depths has been oxidized at several hundred metres depth at the transition to a deep-seated sulphate-rich saline water. This process is so far an unrecognized terrestrial sink of methane.

  • 130.
    Duvefelt, K.
    et al.
    KTH Royal Institute of Technology, Sweden.
    Olofsson, U.
    KTH Royal Institute of Technology, Sweden.
    Johannesson, C. M.
    KTH Royal Institute of Technology, Sweden.
    Skedung, Lisa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science.
    Model for contact between finger and sinusoidal plane to evaluate adhesion and deformation component of friction2014In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, p. 389-394Article in journal (Refereed)
    Abstract [en]

    One of the main parameters affecting finger friction, friction-induced vibrations in the finger, and consequently tactility is surface topography. Recently Skedung et al. performed finger frictionmeasurements on fine controlled surfaces. These surfaces were sinusoidal with wavelengths from 0.27 to 8.8 μm and amplitudes from 0.007 to 6 μm. Building on those tests an analytical model for the contact was developed to explain the differences in friction coefficient. The contact was modelled as trapezoids in a circular pattern pressed against a sinusoidal plane. Results showed that the calculated contact area and therefore friction coefficient corresponded well with the measurements. This model can be used to see how the different surface parameters influence friction.

  • 131.
    Duvefelt, Kenneth
    et al.
    KTH Royal Institute of Technology, Sweden.
    Olofsson, Ulf
    KTH Royal Institute of Technology, Sweden.
    Johannesson, Carl Michael
    KTH Royal Institute of Technology, Sweden.
    Skedung, Lisa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science.
    Model for contact between finger and sinusoidal plane to evaluate adhesion and deformation component of friction2016In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 96, p. 389-394Article in journal (Refereed)
    Abstract [en]

    One of the main parameters affecting finger friction, friction-induced vibrations in the finger, and consequently tactility is surface topography. Recently Skedung et al. performed finger friction measurements on fine controlled surfaces. These surfaces were sinusoidal with wavelengths from 0.27 to 8.8 μm and amplitudes from 0.007 to 6 μm. Building on those tests an analytical model for the contact was developed to explain the differences in friction coefficient. The contact was modelled as trapezoids in a circular pattern pressed against a sinusoidal plane. Results showed that the calculated contact area and therefore friction coefficient corresponded well with the measurements. This model can be used to see how the different surface parameters influence friction.

  • 132.
    Ejenstam, Lina
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Claesson, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    The effect of superhydrophobic wetting state on corrosion protection - The AKD example2013In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 412, no 56-64Article in journal (Refereed)
  • 133.
    Ejenstam, Lina
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber. KTH Royal Institute of Technology, Sweden.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Claesson, Per M.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Toward superhydrophobic polydimethylsiloxane−silica particle coatings2016In: Journal of Dispersion Science and Technology, ISSN 0193-2691, E-ISSN 1532-2351, Vol. 37, no 9, p. 1375-1383Article in journal (Refereed)
    Abstract [en]

    Hydrophobized silica nanoparticles of different sizes, from 16 to 500 nm, were used to impart roughness to a hydrophobic polydimethylsiloxane (PDMS) coating with the aim of obtaining superhydrophobic properties. The particle silanization process and the curing process of the PDMS coating were optimized to increase the contact angle (CA) of the particle containing coating. The evaluation of the coatings, by means of water CA measurements and scanning electron microscopy imaging, shows that superhydrophobicity in the adhesive rose state was achieved using combinations of two differently sized particles, with an excess of the small 16 nm ones. Superhydrophobicity in the lotus state was obtained when the filler concentration of 16 nm particles was 40 wt%, but under such conditions the coating was found to partially crack, which is detrimental in barrier applications. The preference for the rose wetting state can be explained by the round shape of the particles, which promotes the superhydrophobic rose wetting state over that of the superhydrophobic lotus state.

  • 134.
    Ejenstam, Lina
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber. KTH Royal Institute of Technology, Sweden.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Pan, Jinshan
    KTH Royal Institute of Technology, Sweden.
    Claesson, Per M.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Corrosion protection by hydrophobic silica particle-polydimethylsiloxane composite coatings2015In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 99, p. 89-97Article in journal (Refereed)
    Abstract [en]

    In this study, the time-dependent corrosion protection ability of 10-15. μm thin polydimethylsiloxane-nanoparticle composite coatings was evaluated using mainly open circuit potential and electrochemical impedance spectroscopy measurements. The best result was obtained for the coating containing 20. wt% hydrophobic silica nanoparticles, where it was possible to achieve protection for almost 80 days in 3. wt% NaCl solution. The protective properties offered by this coating are suggested to be due to a synergistic effect of the hydrophobicity of the polydimethylsiloxane matrix and the prolonged diffusion path caused by addition of hydrophobic silica particles.

  • 135.
    Ejenstam, Lina
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber. KTH Royal Institute of Technology, Sweden.
    Tuominen, Mikko
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Haapanen, Janne
    Tampere University of Technology, Finland.
    Mäkelä, Jyrki M.
    Tampere University of Technology, Finland.
    Pan, Jinshan
    KTH Royal Institute of Technology, Sweden.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Claesson, Per M.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Long-term corrosion protection by a thin nano-composite coating2015In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 357, no Part B, p. 2333-2342Article in journal (Refereed)
    Abstract [en]

    We report and discuss the corrosion protective properties of a thin nano-composite coating system consisting of an 11μm thick polyester acrylate (PEA) basecoat, covered by an approximately 1-2μm thick layer of TiO2 nanoparticles carrying a 0.05μm thick hexamethyl disiloxane (HMDSO) top coat. The corrosion protective properties were evaluated on carbon steel substrates immersed in 3wt% NaCl solution by open circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) measurements. The protective properties of each layer, and of each pair of layers, were also evaluated to gain further understanding of the long-term protective properties offered by the nano-composite coating. The full coating system showed excellent corrosion protective properties in the corrosive environment of 3wt% NaCl-solution for an extended period of 100 days, during which the coating impedance, at the lower frequency limit (0.01Hz), remained above 108 Ωcm2. We suggest that the excellent corrosion protective properties of the complete coating system is due to a combination of (i) good adhesion and stability of the PEA basecoat, (ii) the surface roughness and the elongated diffusion path provided by the addition of TiO2 nanoparticles, and (iii) the low surface energy provided by the HMDSO top coat.

  • 136.
    Ekendahl, Susanne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Characterization of yeasts isolated from deep igneous rock aquifers of the Fennoscandian Sheild2003In: Microbiology and Ecology, Vol. 46, p. 416-428Article in journal (Refereed)
    Abstract [en]

    Characterization of yeasts isolated from deep igneous rock aquifers of the Fennoscandian Sheild

  • 137.
    Ekendahl, Susanne
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Strömberg, Niklas
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Oorganisk kemi (Kmoo).
    Haglund, Jonas
    Lauritzen, Andreas
    Persson, Magnus
    Sandberg, Maria
    Svanberg, Johanna
    Svensen, Tarjei
    Tervell, Nils
    Wernvall, Svante
    Wiklund, Per
    Pettersson, Christer
    Algodling hos massa- och pappersbruk för hållbar produktion av biobränsle – en förstudie2012Report (Refereed)
  • 138. Elbourne, A
    et al.
    Sweeney, J
    Webber, G B
    Wanless, E J
    Warr, G G
    Rutland, Mark W.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Adsorbed and near-surface structure of ionic liquids determines nanoscale friction2013In: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 49, no 60, p. 6797-6799Article in journal (Refereed)
    Abstract [en]

    Surface-adsorbed and near-surface ion layer structure controls nanotribology in the silica-propylammonium nitrate (PAN)-mica system. Atomic Force Microscopy (AFM) imaging and normal force curves reveal that the normal load dictates the number of interfacial ion layers and the lateral layer structure. Shear force measurements show the lubricity of the interface changes with the number, and lateral structure, of the confined ion layer(s).

  • 139.
    Elgåsen, Else-Hanna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Korrosionsprovning av rostskyddsfärger genom UV-åldring och exponering i svaveldioxidhaltig miljö med hög relativ fuktighet1993Report (Refereed)
  • 140.
    Elgåsen, Else-Hanna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Korrosionsprovning av rostskyddsfärger i svaveldioxidhaltig atmosfär.1995Report (Refereed)
  • 141.
    Elgåsen, Else-Hanna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Korrosionsprovning i svaveldioxidhaltig atmosfär med hög relativ luftfuktighet. (Nordtest projekt 549-85)1990Report (Refereed)
  • 142.
    Elgåsen, Else-Hanna
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Holmgren, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Gasmiljöskåp för placering i servohydraulisk provningsmaskin: konstruktionsförslag1990Report (Refereed)
  • 143.
    Elgåsen, Else-Hanna
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Wernståhl, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Korrosionsprovning av rostskyddsfärger genom UV-åldring och exponering av svaveldioxidhaltig miljö med hög relativ fuktighet.1993Report (Refereed)
  • 144.
    Elofsson, Ulla
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Millqvist-Fureby, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Gerde, Per
    Inhalation Sciences Sweden AB, Sweden.
    Pulmonary delivery of antimicrobial peptides2015In: ONdrugDelivery, ISSN 2049-145X, Vol. 57, p. 4-7Article in journal (Refereed)
    Abstract [en]

    Anna Fureby, PhD, Group Manager & Senior Scientist, Life Science, and Ulla Elofsson, PhD, Senior Scientist, both of SP Technical Research Institute of Sweden, and Per Gerde, PhD, Chief Scientific Officer, Inhalation Sciences Sweden, discuss the serious problem of antibiotic resistance and the potential role of antimicrobial peptides in the treatment of resistant bacterial strains. For pulmonary infections, optimising the formulation and delivery method is a crucial factor for success.

  • 145.
    Emanuelsson, Viktor
    et al.
    Brandteknik, forskning (BRf ).
    Simonson, Margaret
    Brandteknik, skydd (BRs ).
    Gevert, Thomas
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    The effect of accelerated ageing of building wires2007In: Fire and Materials, no 31, p. 311-326Article in journal (Refereed)
  • 146.
    Enebro, Jonas
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Quantitative aspects in electrospray ionization ion trap and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry of malto-oligosaccharides2011In: Rapid Communications in Mass Spectrometry, ISSN 0951-4198, E-ISSN 1097-0231, Vol. 25, no 15, p. 2201-2208Article in journal (Refereed)
  • 147.
    Engelbrektsson, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Kemi.
    A potential tool for high-resolution monitoring of ocean acidification2013In: Analytica Chimica Acta, ISSN 0003-2670, E-ISSN 1873-4324, Vol. 786, no Jul, p. 1-7Article in journal (Refereed)
  • 148.
    Englund, Finn
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Bryne, Lars Elof
    Ernstsson, Marie
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Some aspects on the determination of surface chemical composition and wettability of modified wood2009In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 4, no 1-2, p. 80-85Article in journal (Refereed)
  • 149.
    Englund, Finn
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Bryne, Lars Elof
    Ernstsson, Marie
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Some aspects on the determination of surface chemical composition and wettability of modified wood2009In: Proceedings of The Fourth European Conference on Wood Modification., SP Technical Research Institute of Sweden , 2009, , p. 553-560Conference paper (Other academic)
  • 150.
    Englund, Finn
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Bryne, Lars Elof
    Ernstsson, Marie
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä.
    Spectroscopic studies of surface chemical composition and wettability of modified wood2009In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 4, no 1-2, p. 80–85-Article in journal (Refereed)
1234567 101 - 150 of 545
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