Change search
Refine search result
1 - 7 of 7
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1. Buda, A.
    et al.
    Jarynowski, Andrzej
    Stockholm University, Faculty of Social Sciences, Department of Sociology. Jagiellonian University.
    Network Structure of Phonographic Market with Characteristic Similarities between Artists2013In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794X, Vol. 123, no 3, p. 547-552Article in journal (Refereed)
    Abstract [en]

    We investigate relations between bestselling artists in last decade on phonographic market and from perspective of listeners by using the Social Network Analyzes. Starting network is obtained from the matrix of correlations between the world's bestselling artists by considering the synchronous time evolution of weekly record sales. This method reveals the structure of phonographic market, but we claim that it has no impact on people who see relationship between artists and music genres. We compare sale (based on correlation of record sales) or popularity (based on data mining of the record charts) networks with similarity (obtained mainly from survey within music experts' opinion) and find no significant relations. We postulate that non-laminar phenomena on this specific market introduce turbulence to how people view relations of artists.

  • 2.
    Das, S.
    et al.
    Stockholm University, Faculty of Science, Department of Physics.
    Källberg, Anders
    Stockholm University, Faculty of Science, Department of Physics.
    Spatial Resolution Test of a Beam Profile Monitoring System for the Double Electrostatic Ion Storage Ring2014In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794X, Vol. 125, no 1, p. 13-17Article in journal (Refereed)
    Abstract [en]

    A beam profile monitoring system based on the imaging of low energy electrons created when the ion beam impinges on a metal plate was built to monitor the beam profile and to cover the wide range of beam intensities and energies for the DESIREE (Double ElectroStatic Ion Ring ExpEriment) beam line diagnostics. The spatial resolution of the system was tested with different beams of various energies and was found to be around 2 mm. A significant steering effect on the ion beam before hitting the metallic foil was observed at low energies.

  • 3.
    Kurasov, Pavel
    Stockholm University, Faculty of Science, Department of Mathematics.
    Inverse Problems for Quantum Graphs: Recent Developments and Perspectives2011In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794X, Vol. 120, no 6A, p. A132-A141Article in journal (Refereed)
    Abstract [en]

    An introduction into the area of inverse problems for the Schrodinger operators on metric graphs is given. The case of metric finite trees is treated in detail with the focus on matching conditions. For graphs with loops we show that for almost all matching conditions the potential on the loop is not determined uniquely by the Titchmarsh-Weyl function. The class of all admissible potentials is characterized.

  • 4.
    Kurasov, Pavel
    Stockholm University, Faculty of Science, Department of Mathematics.
    On the inverse problem for quantum graphs with one cycle2009In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794XArticle in journal (Refereed)
  • 5.
    Kurasov, Pavel
    Stockholm University, Faculty of Science, Department of Mathematics.
    On the Spectral Gap for Laplacians on Metric Graphs2013In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794X, Vol. 124, no 6, p. 1060-1062Article in journal (Refereed)
    Abstract [en]

    We discuss lower and upper estimates for the spectral gap of the Laplace operator on a finite compact connected metric graph. It is shown that the best lower estimate is given by the spectral gap for the interval with the same total length as the original graph. An explicit upper estimate is given by generalizing Cheeger's approach developed originally for Riemannian manifolds.

  • 6.
    Kurasov, Pavel
    Stockholm University, Faculty of Science, Department of Mathematics.
    Surgery of Graphs: M-Function and Spectral Gap2017In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794X, Vol. 132, no 6, p. 1666-1671Article in journal (Refereed)
    Abstract [en]

    We discuss behaviour of the spectral gap for quantum graphs when two metric graphs are glued together. It appears that precise answer to this question can be given using a natural generalisation of the Titchmarsh-Weyl M-functions.

  • 7.
    Tai, Cheuk-Wai
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK), Inorganic and Structural Chemistry.
    Synthesis and characterization of carbon nanotubes decorated with gold nanoparticles2010In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794X, Vol. 118, no 3, p. 483-486Article in journal (Refereed)
    Abstract [en]

    In presented work we report results of simple and viable method for producing Au/CNT composites. Chemicalcomposition and crystallographic structure of the Au/CNT composites was confirmed by X-ray diffractionmeasurements, while transmission and scanning electron microscopy were used to characterize the morphology ofnanocrystals as well as the distribution of nanocrystals in the composite. The obtained particles with relativelysmall diameter (less than 9 nm) were found to be spatially well dispersed on the carbon nanotubes. The densityof attached Au–nanoparticles is not sufficient, and cannot be improved by simple increasing gold loading.

1 - 7 of 7
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf