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  • 1.
    Adsten, Monika
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Solar Thermal Collectors at High Latitudes: Design and performance of non-tracking concentrators2002Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Solar thermal collectors at high latitudes have been studied, with emphasis on concentrating collectors. A novel design of concentrating collector, the Maximum Reflector Collector (MaReCo), especially designed for high latitudes, has been investigated optically and thermally. The MaReCo is an asymmetrical compound parabolic concentrator with a bi-facial absorber. The collector can be adapted to various installation conditions, for example stand-alone, roof- or wall mounted. MaReCo prototypes have been built and outdoor-tested. The evaluation showed that all types work as expected and that the highest annually delivered energy output, 340 kWh/m2, is found for the roof MaReCo. A study of the heat-losses from the stand-alone MaReCo lead to the conclusion that teflon transparent insulation should be placed around the absorber, which decreases the U-value by about 30%.

    A method was developed to theoretically study the projected radiation distribution incident on the MaReCo bi-facial absorber. The study showed that the geometry of the collectors could be improved by slight changes in the acceptance intervals. It also indicated that the MaReCo design concept could be used also at mid-European latitudes if the geometry is changed.

    A novel method was used to perform outdoor measurements of the distribution of concentrated light on the absorber and then to calculate the annually collected zero-loss energy, Ea,corr, together with the annual optical efficiency factor. A study using this method indicated that the absorber should be mounted along the 20º optical axis instead of along the 65º optical axis, which leads to an increase of about 20% in Ea,corr. The same absorber mounting is suggested from heat loss measurements. The Ea,corr at 20º absorber mounting angle can be increased by 5% if the absorber fin thickness is changed from 0.5 to 1 mm and by 13% if two 71.5 mm wide fins are used instead of one that is 143 mm wide. If the Ea,corr for the standard stand-alone MaReCo with 143 mm wide absorber mounted at 65º is compared to that of a collector with a 71.5 mm wide absorber mounted at 20º, the theoretical increase is 38%.

    List of papers
    1. Evaluation of CPC-collector designs for stand-alone, roof- or wall installation
    Open this publication in new window or tab >>Evaluation of CPC-collector designs for stand-alone, roof- or wall installation
    2005 (English)In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 79, no 6, p. 638-647Article in journal (Refereed) Published
    Abstract [en]

    An asymmetrically truncated non-tracking compound parabolic concentrator type collector design concept has been developed. The collector type has a bi-facial absorber and is optimised for northern latitudes. The concept is based on a general reflector form that is truncated to fit different installation conditions. In this paper collectors for stand-alone, roof and wall mounting are studied. Prototypes of six different collectors have been built and outdoor tested. The evaluation gave high annual energy outputs for a roof mounted collector, 925 MJ/m2, and a stand-alone collector with Teflon, 781 MJ/m2, at an operating temperature of Top = 75 °C. A special design for roofs facing east or west was also investigated and gave an annual energy output of 349 (east) and 436 (west) MJ/m2 at Top = 75 °C. If a high solar fraction over the year is the objective, a load adapted collector with a high output during spring/fall and a low output during summer can be used. Such a collector had an output of 490 MJ/m2 at Top = 75 °C. Finally a concentrating collector for wall mounting was evaluated with an estimated annual output of 194 MJ/m2 at Top = 75 °C. The concentrator design concept can also be used for concentrators for PV-modules.

    National Category
    Engineering and Technology
    Identifiers
    urn:nbn:se:uu:diva-89748 (URN)10.1016/j.solener.2005.04.023 (DOI)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2017-12-14Bibliographically approved
    2. Calorimetric measurements of heat losses from a truncated asymmetric solar thermal concentrator
    Open this publication in new window or tab >>Calorimetric measurements of heat losses from a truncated asymmetric solar thermal concentrator
    2002 (English)In: Solar EnergyArticle in journal (Refereed) Submitted
    Identifiers
    urn:nbn:se:uu:diva-89749 (URN)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2009-04-29Bibliographically approved
    3. Annually projected solar radiation distribution analysis for optimum design of asymmetric CPC
    Open this publication in new window or tab >>Annually projected solar radiation distribution analysis for optimum design of asymmetric CPC
    2002 (English)In: Solar EnergyArticle in journal (Refereed) Submitted
    Identifiers
    urn:nbn:se:uu:diva-89750 (URN)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2009-04-29Bibliographically approved
    4. Measurement of radiation distribution on the absorber in an asymmetric CPC collector
    Open this publication in new window or tab >>Measurement of radiation distribution on the absorber in an asymmetric CPC collector
    2004 (English)In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 76, no 1-3, p. 199-206Article in journal (Refereed) Published
    Abstract [en]

    A method to estimate the annual collected energy and the annual average optical efficiency factor is suggested. The radiation distribution on the absorber of an asymmetric CPC collector with a flat bi-facial absorber is measured for three different absorber mounting angles using a photo diode. The annual optical efficiency factors and a relative measure of the annual collected energy are determined for collectors with the absorber fin thickness 0.5 and 1 mm, and for a collector with a teflon convection suppression film mounted around the absorber. With the local optical efficiency factors and the annual incident solar energy distribution considered, the analysis indicates that the energy gain for a mounting angle of 20° is higher than for a collector with 65° absorber mounting angle. The annual collected energy is increased with 6–8% if the absorber fin thickness is increased from 0.5 to 1 mm. The annual average optical efficiency factor is relatively independent of the absorber mounting angle. It was found to be 0.87–0.88 for a collector with a 0.5 mm thick absorber fin and 0.92 for a collector with a 1 mm thick absorber fin or for a collector with 0.5 mm thick absorber fin with a teflon convection suppression film added. The low annual average optical efficiency factor is not caused by the uneven irradiance distribution but by the relatively high UL-values.

    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:uu:diva-89751 (URN)10.1016/j.solener.2003.08.024 (DOI)
    Conference
    Solar World Congress 2001
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2017-12-14Bibliographically approved
    5. Comparison of the optical efficiency of a wide and a narrow absorber fin in an asymmetric concentrating collector
    Open this publication in new window or tab >>Comparison of the optical efficiency of a wide and a narrow absorber fin in an asymmetric concentrating collector
    (English)Manuscript (Other (popular science, discussion, etc.))
    Identifiers
    urn:nbn:se:uu:diva-89752 (URN)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2010-01-14Bibliographically approved
    6. The influence of climate and location on collector performance
    Open this publication in new window or tab >>The influence of climate and location on collector performance
    2002 (English)In: Renewable energy, ISSN 0960-1481, E-ISSN 1879-0682, Vol. 25, no 4, p. 499-509Article in journal (Refereed) Published
    Abstract [en]

    The influence of annual climate variations on the performance of solar thermal collectors in the northern part of Europe has been investigated. The annual solar collector energy output has been calculated with the MINSUN simulation program using hourly, measured climatic data for the years 1983–98 for three cities situated in the south (Lund), central (Stockholm) and north (Luleå) of Sweden. A synthetic year created with the Meteonorm weather simulation program was also used in the simulations. Two solar thermal collectors were modelled: a flat plate solar collector and a tubular vacuum collector, both of commercial standard.

    The thermal energy output is strongly correlated to the annual global irradiation at a horizontal surface. The annual average energy delivered from the flat plate collector was 337 kWh/m2 for Stockholm (337 for Lund and 298 for Luleå), and from the vacuum tube collector 668 kWh/m2 for Stockholm (675 for Lund and 631 for Luleå) at an operating temperature of T=50°C. Maximum deviations from the average value for this 16-year period are around 20% for the flat plate and 15% for the vacuum tube collector, at T=50°C.

    The relation between global irradiation on a horizontal surface and the annually collected thermal energy at a constant operating temperature could be fitted to a linear equation: qu=aG(0°)+bT, where qu is the energy output from the collector, G(0°) the global irradiation at a horizontal surface, T the average temperature of the collector fluid, and a and b fitting parameters in a double linear regression analysis.

    National Category
    Engineering and Technology
    Identifiers
    urn:nbn:se:uu:diva-89753 (URN)10.1016/S0960-1481(01)00091-X, (DOI)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2017-12-14Bibliographically approved
    7. Simulation of the influence of tilt and azimuth angles on the collector output of solar collectors at northern latitudes
    Open this publication in new window or tab >>Simulation of the influence of tilt and azimuth angles on the collector output of solar collectors at northern latitudes
    1999 (English)In: Proceedings North Sun conference 1999, Edmonton CanadaArticle in journal (Refereed) Accepted
    Identifiers
    urn:nbn:se:uu:diva-89754 (URN)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2009-04-29Bibliographically approved
    8. The impact of optical and thermal properties on the performance of flat plate solar collectors
    Open this publication in new window or tab >>The impact of optical and thermal properties on the performance of flat plate solar collectors
    Show others...
    2000 (English)In: Proceedings Eurosun 2000, Copenhagen, DenmarkArticle in journal (Refereed) Published
    Identifiers
    urn:nbn:se:uu:diva-89755 (URN)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2009-04-29Bibliographically approved
    9. Optical scattering from rough aluminum surfaces
    Open this publication in new window or tab >>Optical scattering from rough aluminum surfaces
    Show others...
    2001 (English)In: J. Applied Optics, Vol. 40, p. 2148-2158Article in journal (Refereed) Published
    Identifiers
    urn:nbn:se:uu:diva-89756 (URN)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2009-04-29Bibliographically approved
    10. Optical characterization of industrially sputtered nickel-nickel oxide solar selective surface
    Open this publication in new window or tab >>Optical characterization of industrially sputtered nickel-nickel oxide solar selective surface
    2000 (English)In: Solar Energy, Vol. 68, p. 325-328Article in journal (Refereed) Published
    Identifiers
    urn:nbn:se:uu:diva-89757 (URN)
    Available from: 2002-04-05 Created: 2002-04-05 Last updated: 2009-04-29Bibliographically approved
  • 2.
    Adsten, Monika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Helgesson, Anna
    Karlsson, Björn
    Evaluation of CPC-collector designs for stand-alone, roof- or wall installation2005In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 79, no 6, p. 638-647Article in journal (Refereed)
    Abstract [en]

    An asymmetrically truncated non-tracking compound parabolic concentrator type collector design concept has been developed. The collector type has a bi-facial absorber and is optimised for northern latitudes. The concept is based on a general reflector form that is truncated to fit different installation conditions. In this paper collectors for stand-alone, roof and wall mounting are studied. Prototypes of six different collectors have been built and outdoor tested. The evaluation gave high annual energy outputs for a roof mounted collector, 925 MJ/m2, and a stand-alone collector with Teflon, 781 MJ/m2, at an operating temperature of Top = 75 °C. A special design for roofs facing east or west was also investigated and gave an annual energy output of 349 (east) and 436 (west) MJ/m2 at Top = 75 °C. If a high solar fraction over the year is the objective, a load adapted collector with a high output during spring/fall and a low output during summer can be used. Such a collector had an output of 490 MJ/m2 at Top = 75 °C. Finally a concentrating collector for wall mounting was evaluated with an estimated annual output of 194 MJ/m2 at Top = 75 °C. The concentrator design concept can also be used for concentrators for PV-modules.

  • 3.
    Adsten, Monika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Hellström, Bengt
    Karlsson, Björn
    Comparison of the optical efficiency of a wide and a narrow absorber fin in an asymmetric concentrating collectorManuscript (Other (popular science, discussion, etc.))
  • 4.
    Adsten, Monika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Hellström, Bengt
    Karlsson, Björn
    Measurement of radiation distribution on the absorber in an asymmetric CPC collector2004In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 76, no 1-3, p. 199-206Article in journal (Refereed)
    Abstract [en]

    A method to estimate the annual collected energy and the annual average optical efficiency factor is suggested. The radiation distribution on the absorber of an asymmetric CPC collector with a flat bi-facial absorber is measured for three different absorber mounting angles using a photo diode. The annual optical efficiency factors and a relative measure of the annual collected energy are determined for collectors with the absorber fin thickness 0.5 and 1 mm, and for a collector with a teflon convection suppression film mounted around the absorber. With the local optical efficiency factors and the annual incident solar energy distribution considered, the analysis indicates that the energy gain for a mounting angle of 20° is higher than for a collector with 65° absorber mounting angle. The annual collected energy is increased with 6–8% if the absorber fin thickness is increased from 0.5 to 1 mm. The annual average optical efficiency factor is relatively independent of the absorber mounting angle. It was found to be 0.87–0.88 for a collector with a 0.5 mm thick absorber fin and 0.92 for a collector with a 1 mm thick absorber fin or for a collector with 0.5 mm thick absorber fin with a teflon convection suppression film added. The low annual average optical efficiency factor is not caused by the uneven irradiance distribution but by the relatively high UL-values.

  • 5.
    Adsten, Monika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Joerger, Ralph
    Järrendahl, Kenneth
    Wäckelgård, Ewa
    Optical characterization of industrially sputtered nickel-nickel oxide solar selective surface2000In: Solar Energy, Vol. 68, p. 325-328Article in journal (Refereed)
  • 6.
    Adsten, Monika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Karlsson, Björn
    Annually projected solar radiation distribution analysis for optimum design of asymmetric CPC2002In: Solar EnergyArticle in journal (Refereed)
  • 7.
    Adsten, Monika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Perers, Bengt
    Simulation of the influence of tilt and azimuth angles on the collector output of solar collectors at northern latitudes1999In: Proceedings North Sun conference 1999, Edmonton CanadaArticle in journal (Refereed)
  • 8.
    Adsten, Monika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Perers, Bengt
    Wäckelgård, Ewa
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    The influence of climate and location on collector performance2002In: Renewable energy, ISSN 0960-1481, E-ISSN 1879-0682, Vol. 25, no 4, p. 499-509Article in journal (Refereed)
    Abstract [en]

    The influence of annual climate variations on the performance of solar thermal collectors in the northern part of Europe has been investigated. The annual solar collector energy output has been calculated with the MINSUN simulation program using hourly, measured climatic data for the years 1983–98 for three cities situated in the south (Lund), central (Stockholm) and north (Luleå) of Sweden. A synthetic year created with the Meteonorm weather simulation program was also used in the simulations. Two solar thermal collectors were modelled: a flat plate solar collector and a tubular vacuum collector, both of commercial standard.

    The thermal energy output is strongly correlated to the annual global irradiation at a horizontal surface. The annual average energy delivered from the flat plate collector was 337 kWh/m2 for Stockholm (337 for Lund and 298 for Luleå), and from the vacuum tube collector 668 kWh/m2 for Stockholm (675 for Lund and 631 for Luleå) at an operating temperature of T=50°C. Maximum deviations from the average value for this 16-year period are around 20% for the flat plate and 15% for the vacuum tube collector, at T=50°C.

    The relation between global irradiation on a horizontal surface and the annually collected thermal energy at a constant operating temperature could be fitted to a linear equation: qu=aG(0°)+bT, where qu is the energy output from the collector, G(0°) the global irradiation at a horizontal surface, T the average temperature of the collector fluid, and a and b fitting parameters in a double linear regression analysis.

  • 9.
    Adsten, Monika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Wäckelgård, Ewa
    Karlsson, Björn
    Calorimetric measurements of heat losses from a truncated asymmetric solar thermal concentrator2002In: Solar EnergyArticle in journal (Refereed)
  • 10. Almqvist, M
    et al.
    Törndahl, M
    Nilsson, M
    Lilliehorn, Tobias
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Characterization of Micromachined Ultrasonic Transducers using Light Diffraction Tomography,2005In: IEEE Trans. Ultrasonics, Ferroelectrics and Frequency Control, Vol. 52, no 12, p. 2298-2302Article in journal (Refereed)
  • 11.
    Andersson, Joakim
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Materialvetenskap.
    Erck, R A
    Erdemir, A
    Friction of diamond-like carbon films in different atmospheres2003In: Wear, Vol. 254, p. 1070-1075Article in journal (Refereed)
  • 12.
    Andersson, Joakim
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. Materialvetenskap.
    Erck, R
    Erdemir, A
    Frictional behavior of diamondlike carbon films in vacuum and under varying water vapor pressure2003In: Surface and Coatings Technology, p. 163-164, 535Article in journal (Refereed)
  • 13.
    Andersson, Joakim
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics. Department of Physics and Materials Science, Physics II. Materials Science. Technology, Department of Engineering Sciences, Electronics. Fysik II.
    Forsberg, Markus
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Department of Physics and Materials Science, Physics II. Materials Science. Technology, Department of Engineering Sciences, Electronics. Fasta tillståndets elektronik.
    Hollman, Patrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Department of Physics and Materials Science, Physics II. Materials Science. Technology, Department of Engineering Sciences, Electronics. Materialvetenskap.
    Jacobson, Staffan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Department of Physics and Materials Science, Physics II. Materials Science. Technology, Department of Engineering Sciences, Electronics. Materialvetenskap.
    A geometrically defined all-diamond pad conditioner2005In: World Tribology Congress III, Washington., 2005Conference paper (Refereed)
  • 14.
    Andersson, Joakim
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. Technology, Department of Engineering Sciences, Electricity. Materialvetenskap.
    Hjort, Klas
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. Technology, Department of Engineering Sciences, Electricity. M.
    Isberg, Jan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. Technology, Department of Engineering Sciences, Electricity. Elektricitetslära och åskforskning.
    Diamanter blir var mans egendom2003In: Forskning & Framsteg, no 1, p. 38-41Article in journal (Other scientific)
  • 15.
    Andersson, Joakim
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Physics II. Materials Science.
    Schmitt, Thorsten
    Department of Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Physics II. Materials Science.
    Duda, Laurent
    Department of Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Physics II. Materials Science.
    Jacobson, Staffan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Physics II. Materials Science.
    Phase transformations in CVD diamond wear tracks revealed by NEXAFS mapping2004In: Nordtrib 2004, Tromsö, Norway, 2004Conference paper (Refereed)
    Abstract [en]

    The origin of the different Li+ intercalation behavior of raw and jet-milled natural graphite has been investigated. Jet-milled graphite is found to cycle reversibly in equal solvent mixture of propylene carbonate (PC) and etylene carbonate (EC), whereas raw graphite does not. Using both Al Ka and synchrotron radiation (SR) Photoelectron Spectroscopy, new insight is obtained inti the formation of the solid electrolyte interphase (SEI) on the two different graphite materials during electrochemical cycling in 1 M LiPF6 in either PC:EC (1:1) or in PC with 5% vinylene carbonate (VC) as additive. Solvent reduction products are found at the surface of both raw and jat-milled graphite cycled in PC:EC (1:1), but differed in composition. The addition of VC reduces primarily the quantities of salt reaction products (LiF and LixPFy compounds) and produces a mainly organic SEI layer. Electron diffraction from the edges for raw and jet-milled graphite particles shows a physical barrier hindering PC co-intercalation and faciltating the formation of a stable SEI layer.

  • 16. Behar, A. E
    et al.
    Bruhn, Fredrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Carsey, F.D
    Exploring Miniaturization Limits for an Instrumented Autonomous Submersible Explorer for Extreme Enviroments2003In: 13th International Symposium on Modular AUV Platform Systems, New England Center, University of New hampshire Durham, 2003Conference paper (Refereed)
  • 17.
    Bejhed, Johan
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Eriksson, Anders
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Stenmark, L
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    The Development of a Micro Machined Xenon Feed System2004In: AIAA-2004-3976, 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit: Fort Lauderdale, Florida, USA, 11-14 July 2004, 2004, p. pp 1-8Conference paper (Other scientific)
  • 18.
    Bejhed, Johan
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Electronics. Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Lindberg, Ulf
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Electronics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets elektronik.
    Stenmark, Lars
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Electronics. Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    A miniturized Xenon Feed System for Electric Propulsion2002Conference paper (Refereed)
  • 19. Bejhed, Johan
    et al.
    Nguyen, Hugo
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science. Materialvetenskap.
    Åstrand, Peter
    Eriksson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Köhler, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Numeric modeling and verification of crossed v-groove particle filters2006In: Journal of Michromechanics and MicroengineeringArticle in journal (Refereed)
  • 20.
    Bejhed, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Nguyen, Hugo
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Åstrand, Peter
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Eriksson, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Köhler, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Numerical modeling and verification of gas flow through a network of crossed narrow v-grooves2006In: Journal of Micromechanics and Microengineering, ISSN 0960-1317, E-ISSN 1361-6439, Vol. 16, no 10, p. 2006-2013Article in journal (Refereed)
    Abstract [en]

    The gas flow through a network of crossing thin micro-machined channels has been successfully modeled and simulated. The crossings are formed by two sets of v-grooves that intersect as two silicon wafers are bonded together. The gas is distributed from inlets via a manifold of channels to the narrow v-grooves. The narrow v-grooves could work as a particle filter. The fluidic model is derived from the Navier–Stokes equation and assumes laminar isothermal flow and incorporates small Knudsen number corrections and Poiseuille number calculations. The simulations use the finite element method. Several elements of the full crossing network model are treated separately before lumping them together: the straight v-grooves, a single crossing in an infinite set and a set of exactly four crossings along the flow path. The introduction of a crossing effectively corresponds to a virtual reduction of the length of the flow path, thereby defining a new effective length. The first and last crossings of each flow path together contribute to a pressure drop equal to that from three ordinary crossings. The derived full network model has been compared to previous experimental results on several differently shaped crossed v-groove networks. Within the experimental errors, the model corresponds to the mass flow and pressure drop measurements. The main error source is the uncertainty in v-groove width which has a profound impact on the fluidic behavior.

  • 21.
    Bejhed, Johan
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Wallbank, J
    Lindegren, Robert
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Thorslund, Robert
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Baker, A M
    Stenmark, Lars
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Köhler, Johan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Catalyst microsystem design and manufacture for a monopropellant microrocket engine2004In: PowerMEMS 2004, Kyoto, Japan.: 28-30 November, 2004., 2004Conference paper (Other scientific)
  • 22. Belfore, N.P.
    et al.
    Lanniello, F.
    Stocchi, D.
    Casadei, F.
    Bazzoni, D.
    Finzi, A.
    Carrera, S.
    Gonzáles, J.R.
    Llanos, J.M.
    Heikkilä, Irma
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science. Materialvetenskap.
    Penalba, F.
    Gómez, X.
    A hybrid approach to the development of a multilayer network for wear and fatigue prediction in metal forming2006Conference paper (Other (popular science, discussion, etc.))
  • 23. Berger, Mattias
    et al.
    Coronel, Ernesto
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Olsson, Eva
    Microstructure of d.c. magnetron sputtered TiB2 coatings2004In: Surface & Coatings Technology, Vol. 180, p. 240-244Article in journal (Refereed)
  • 24.
    Beste, Ulrik
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Coronel, Ernesto
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Jacobson, Staffan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Wear induced material modification of cemented carbide rock drills2004In: Conf on Hard Materials, Puert Rico, 2004Conference paper (Refereed)
  • 25.
    Beste, Ulrik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. Materialvetenskap.
    Coronel, Ernesto
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science. Materialvetenskap.
    Jacobson, Staffan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science. Materialvetenskap.
    Wear induced material modification of cemented carbide rock drills2006In: Int. Journal of Refractory Metals and Hard Materials, Vol. 24, no 1-2, p. 168-176Article in journal (Refereed)
  • 26.
    Beste, Ulrik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Coronel, Ernesto
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Jacobson, Staffan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Wear induced material modifications of cemented carbide rock drill buttons2006In: International journal of refractory metals & hard materials, ISSN 0958-0611, E-ISSN 2213-3917, Vol. 24, no 1-2, p. 168-176Article in journal (Refereed)
    Abstract [en]

    The drill crown of a rock drill is made of steel and equipped with WC/Co cemented carbide buttons (or inserts) of different geometries. These rock drill button are exposed to a large number of high load impacts into the rock. The complex and strongly shifting properties of rock minerals lead to a complex mixture of wear mechanisms. These wear mechanisms have recently been mapped by the present authors, and are divided into five classes of deterioration and five classes of material removal mechanisms. In this paper, two important deterioration mechanisms are studied in detail, namely the binder phase degradation and the rock intermixing.

    Transmission electron microscopy (TEM) has been employed for these high resolution studies. However, rock intermixture and huge internal stresses in the buttons lead to severe difficulties in preparing samples.

    Therefore, a focused ion beam-instrument (FIB) has been used to cut cross-section samples in the outermost surface on rock drill buttons. These have been investigated in the TEM by EDS, EFTEM, and STEM.

    Buttons from two rock drills of different history were selected for this investigation. One was used to drill 18 m in a hard rock type (quartzitic granite) and the other to drill 20 m in a much softer rock type (magnetite). Only selected regions of the outermost WC grain layers, which are in a steady state wear mode, were investigated.

    The crystallographic structure of the Co binder phase was investigated in both buttons, and it was represented mainly by the hcp-Co, but also small extent of fcc-Co. This is suggested to be a result of the mechanical fatigue, following one of two suggested Co-phase transformation series.

    The rock covers and intermixed zones formed were analysed in detail. The large part of the rock cover was found to be amorphous, containing rock and WC fragments. Adjacent to the WC grains, the rock cover was often found to have a porous structure, where the pores were surrounded by crystalline Co-particles adjacent to a carbon rich area. Apparently, the quartz rock locally melts and sticks very intimately to the WC grains and the porous structure forms during solidification. This feature was further analysed, and it was shown that the amorphous rock is seamlessly connected to WC on the atomic level. It was also stated that the rock cover and intermixed layers are very similar on both buttons, independent of rock type drilled.

  • 27.
    Beste, Ulrik
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Materialvetenskap.
    Jacobson, Staffan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Physics, Department of Physics and Materials Science, Materials Science. Materialvetenskap.
    Micro scale hardness distribution of rock types related to rock drill wear2003In: Wear, Vol. 254, p. 1147-1154Article in journal (Refereed)
  • 28.
    Beste, Ulrik
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Jacobson, Staffan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Penetrated rock as a weakening mechanism in cemented carbide rock drill wear.2004In: Nordtrib 2004, Tromsö, Norway, 2004, p. 627–636-Conference paper (Refereed)
  • 29.
    Beste, Ulrik
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Lundvall, A
    Jacobson, Staffan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Micro-scratch evaluation of rock types - a means to comprehend rock drill wear2004In: Trib. Int, Vol. 37, p. 203-210Article in journal (Refereed)
  • 30.
    Bjorkman, H
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Electronics. MATERIALS SCIENCE.
    Rangsten, Pelle
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Electronics. Fasta tillståndets elektronik.
    Hjort, Klas
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Electronics. Materialvetenskap.
    Diamond microstructures for optical micro electromechanical systems1999In: SENSORS AND ACTUATORS A-PHYSICAL, ISSN 0924-4247, Vol. 78, no 1, p. 41-47Article in journal (Refereed)
    Abstract [en]

    We have used hot filament chemical vapour deposition (HFCVD) to fabricate diamond microstructure components for optical micro electromechanical systems (MEMS). In order to demonstrate the wide application range for diamond technology we have made componen

  • 31.
    Bjorkman, H
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Electronics. MATERIALS SCIENCE.
    Rangsten, Pelle
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Electronics. Fasta tillståndets elektronik.
    Hollman, Patrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Electronics. Materialvetenskap.
    Hjort, Klas
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Electronics. Materialvetenskap.
    Diamond replicas from microstructured silicon masters1999In: SENSORS AND ACTUATORS A-PHYSICAL, ISSN 0924-4247, Vol. 73, no 1-2, p. 24-29Article in journal (Refereed)
    Abstract [en]

    We are developing a microstructure technology for thick film diamond replicas, using deposition by hot filament chemical vapour deposition (CVD) on microstructured silicon. This technology is primarily intended to make micromechanical structures for micro

  • 32.
    Björnängen, Peter
    et al.
    Micronic Laser Systems AB, Sweden.
    Ekberg, Mats
    Micronic Laser Systems AB, Sweden.
    Öström, Thomas
    Micronic Laser Systems AB, Sweden.
    Fosshaug, Hans
    Micronic Laser Systems AB, Sweden.
    Karlsson, Johan
    Micronic Laser Systems AB, Sweden.
    Björnberg, Charles
    Micronic Laser Systems AB, Sweden.
    Nikolajeff, Fredrik
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Karlsson, Mikael
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    DOE Manufacture with the DUV SLM-based Sigma7300 Laser Pattern Generator2004Conference paper (Refereed)
  • 33.
    Boden, Roger
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology. Materialvetenskap.
    Simu, U.
    Margell, J.
    Lehto, Marcus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science. Materialvetenskap.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology. Materialvetenskap.
    Thornell, Greger
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology. Materialvetenskap.
    Schweitz, Jan-Åke
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology. Materialvetenskap.
    Metallic high-pressure microfluidicpump with active valves2007Conference paper (Refereed)
  • 34.
    Bodén, Roger
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Lehto, Marcus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Margell, Joakim
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Schweitz, Jan-Åke
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Towards a self-contained Lab on a Chip concept with sequential drive for point-of-care testingIn: Lab-on-a-chipArticle in journal (Other academic)
  • 35.
    Bodén, Roger
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Lehto, Marcus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Schweitz, Jan-Åke
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    A paraffin driven linear microactuator for high force and large displacement applications2006In: Proceedings of Actuator, p. 720-723Article in journal (Refereed)
  • 36.
    Bodén, Roger
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science. Materialvetenskap.
    Lehto, Marcus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science. Materialvetenskap.
    Schweitz, Jan-Åke
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science. Materialvetenskap.
    A paraffin driven linear microactuator for high force and large displacement applications2006Conference paper (Refereed)
  • 37.
    Bodén, Roger
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Lehto, Marcus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Simu, Urban
    Thornell, Greger
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Schweitz, Jan-Åke
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    A polymeric paraffin actuated high-pressure micropump2006In: Sensors and Actuators A, ISSN 0924-4247, Vol. 127, no 1, p. 88-93Article in journal (Refereed)
  • 38.
    Bodén, Roger
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Lehto, Marcus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Simu, Urban
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Thornell, Greger
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Schweitz, Jan-Åke
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    A polymeric paraffin actuated high-pressure micropump2006In: Sensors and Actuators A: Physical, ISSN 0924-4247, Vol. 127, no 1, p. 88-93Article in journal (Refereed)
  • 39.
    Bodén, Roger
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Lehto, Marcus
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Simu, Urban
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Thornell, Greger
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
    Schweitz, Jan-Åke
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Materials Science.
    A polymeric paraffin actuated high-pressure micropump2006In: Sensors and Actuators A-Physical, ISSN 0924-4247, E-ISSN 1873-3069, Vol. 127, no 1, p. 88-93Article in journal (Refereed)
  • 40.
    Bodén, Roger
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Lehto, Marcus
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Simu, Urban
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Thornell, Greger
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Hjort, Klas
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Schweitz, Jan-Åke
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    A Polymeric Paraffin Micropump with Active Valves for High-Pressure Microfluidics2005In: The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, Seoul, Korea, 2005Conference paper (Refereed)
  • 41.
    Bodén, Roger
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Lehto, Marcus
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Thornell, Greger
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Hjort, Klas
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Schweitz, Jan-Åke
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    A polymeric paraffin actuated high-pressure micropump2005In: SenArticle in journal (Refereed)
  • 42. Bongiorno, G
    et al.
    Blomqvist, M
    Piseri, P
    Milani, P
    Lenardi, C
    Ducati, C
    Caruso, T
    Rudolf, P
    Wachtmeister, S
    Csillag, Stafan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Coronel, Ernesto
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Nanostructured CNx (0<x<0.2) films grown by cupersonic cluster beam deposition2004In: Carbon,Article in journal (Refereed)
  • 43.
    Bordas, Cloe
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Skupinski, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Öjefors, Erik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Lindeberg, Mikael
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Hjort, Klas
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    First results on a polyimide based ferromagnetic resonance microwave filter2004In: MEMSWAVE 2004, Uppsala, Sweden, 2004Conference paper (Other scientific)
  • 44.
    Brogren, Maria
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Solid State Physics. Fasta tillståndets fysik.
    Harding, GL
    Karmhag, Rikard
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Solid State Physics. Fasta tillståndets fysik.
    Ribbing, C-G
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Solid State Physics. Fasta tillståndets fysik.
    Niklasson, Gunnar
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Solid State Physics. Fasta tillståndets fysik.
    Stenmark, Lars
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Physics, Department of Physics and Materials Science, Materials Science. Department of Engineering Sciences, Solid State Physics. ÅSTC.
    Titanium-aluminum-nitride coatings for satellite temperature control2000In: THIN SOLID FILMS, ISSN 0040-6090, Vol. 370, no 1-2, p. 268-277Article in journal (Refereed)
    Abstract [en]

    Intense solar irradiation, radiative cooling to outer space, and internal heat generation determine the equilibrium temperature of a spacecraft. The balance between the solar absorption and thermal emittance of the surface is therefore crucial, in particu

  • 45.
    Brogren, Maria
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Harding, G.L
    Karmhag, Rikard
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Ribbing, C-G
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Niklasson, Gunnar
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Stenmark, Lars
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    TixAlyN coatings for temperature control of spacecraft1999In: Advances in Optical Interference Coatings, Berlin, 25-28 May, Proc SPIE 3738, 1999, p. 493-501Conference paper (Other scientific)
  • 46.
    Brogren, Maria
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Larsson, Anna-Lena
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Harding, G.L
    Karmhag, Rikard
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Ribbing, C-G
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Niklasson, Gunnar
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. Fasta tillståndets fysik.
    Stenmark, Lars
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Materials Science. Department of Engineering Sciences, Solid State Physics. Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Optical coatings for temperature control of spacecraft1998In: Optik i Sverige, Stockholm, Sweden, 1998Conference paper (Refereed)
  • 47. Brufau, J
    et al.
    Puig-Vidal, M
    Lopez-Sanchez, J
    Snis, Niklas
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Simu, Urban
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Johansson, Stefan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science.
    Driesen, W
    Gao, J
    Velten, T
    MICRON: Small Autonomous Robot for Cell Manipulation Applications2005In: 2005 IEEE International Conference on Robotics and Automation, Barcelona, Spain April 2005, 2005Conference paper (Refereed)
  • 48.
    Bruhn, F
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences, Electronics. Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Kratz, Henrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences, Electronics. Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Warell, J
    Department of Astronomy and Space Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences, Electronics. Physics, Department of Physics and Materials Science, Materials Science.
    Lagerkvist, C - I
    Department of Astronomy and Space Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences, Electronics. Physics, Department of Physics and Materials Science, Materials Science.
    Kaznov, V
    Jones, J A
    Stenmark, L
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences, Electronics. Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    A Spherical Inflatable Micro Rover System for Mars Exploration2005In: 56th IAC in, 2005Conference paper (Other (popular scientific, debate etc.))
  • 49.
    Bruhn, Fredrik
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Carsey, F.D.
    Köhler, Johan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Mowlem, M.
    German, C.R
    Behar, A.E.
    MEMS Enablement and Analysis of the Miniature Autonomous Submersible Explorer2005In: Journal of Oceanographic engineering, Vol. 30, no 1, p. 165-178Article in journal (Refereed)
  • 50.
    Bruhn, Fredrik
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Köhler, Johan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Stenmark, L
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Materials Science. ÅSTC.
    Micro/Nano Probes Enabling Next Generation Space Exploration2003In: 4th Round Teble on Micro/Nano Technology for space, ESTEC Noordwijk, The Netherlands 2003, 2003, p. 170-189Conference paper (Refereed)
1234567 1 - 50 of 395
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