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21 Result(s)

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  1. No Access

    Article

    Effects of agents' mobility on opinion spreading in Sznajd model

    Under synchronous updating and allowing the agents to move in the lattice or underlying network, we find that the Sznajd model always reaches a consensus as a steady state, – because agent frustrations are ...

    A. O. Sousa, T. Yu-Song, M. Ausloos in The European Physical Journal B (2008)

  2. No Access

    Article

    Clusters in weighted macroeconomic networks: the EU case. Introducing the overlap** index of GDP/capita fluctuation correlations

    GDP/capita correlations are investigated in various time windows (TW), for the time interval 1990–2005. The target group of countries is the set of 25 EU members, 15 till 2004 plus the 10 countries which joine...

    M. Gligor, M. Ausloos in The European Physical Journal B (2008)

  3. No Access

    Article

    Drastic events make evolving networks

    Co-authorship networks of neighbouring scientific disciplines, i.e. granular (G) media and networks (N) are studied in order to observe drastic structural changes in evolving networks. The data is taken from a...

    M. Ausloos, R. Lambiotte in The European Physical Journal B (2007)

  4. No Access

    Article

    Cluster structure of EU-15 countries derived from the correlation matrix analysis of macroeconomic index fluctuations

    The statistical distances between countries, calculated for various moving average time windows, are mapped into the ultrametric subdominant space as in classical Minimal Spanning Tree methods. The Moving Aver...

    M. Gligor, M. Ausloos in The European Physical Journal B (2007)

  5. No Access

    Article

    On the genre-fication of music: a percolation approach

    We analyze web-downloaded data on people sharing their music library. By attributing to each music group usual music genres (Rock, Pop ...), and analysing correlations between music groups of different genres ...

    R. Lambiotte, M. Ausloos in The European Physical Journal B - Condense… (2006)

  6. No Access

    Chapter

    Influence of Information Flow in the Formation of Economic Cycles

    J. Miśkiewicz, M. Ausloos in The Logistic Map and the Route to Chaos (2006)

  7. No Access

    Article

    Limit current density in 2D metallic granular packings

    The electrical properties of a 2D packed metallic pentagons have been studied. The electrical characterization of such metallic pentagon heaps, like i-V measurements, has been achieved. Two distinct regimes have ...

    S. Dorbolo, M. Ausloos, N. Vandewalle in The European Physical Journal B - Condense… (2003)

  8. No Access

    Article

    Foam imbibition in microgravity

    We report an experimental study of aqueous foam imbibition in microgravity with strict mass conservation. The foam is in a Hele-Shaw cell. The bubble edge width ℓ is measured by image analysis. The penetration...

    H. Caps, H. Decauwer, M.-L. Chevalier… in The European Physical Journal B - Condense… (2003)

  9. No Access

    Article

    Are EUR and GBP different words for the same currency?

    The British Pound (GBP) is not part of the Euro (EUR) monetary system. In order to find out arguments on whether GBP should join the EUR or not correlations are calculated between GBP exchange rates with respect ...

    K. Ivanova, M. Ausloos in The European Physical Journal B - Condense… (2002)

  10. No Access

    Article

    Mechanistic approach to generalized technical analysis of share prices and stock market indices

    Classical technical analysis methods of stock evolution are recalled, i.e. the notion of moving averages and momentum indicators. The moving averages lead to define death and gold crosses, resistance and support ...

    M. Ausloos, K. Ivanova in The European Physical Journal B - Condense… (2002)

  11. No Access

    Article

    False Euro (FEUR) exchange rate correlated behaviors and investment strategy

    We have searched for correlations and anticorrelations with respect to currencies as CHF, DKK, JPY, and USD in order to understand the EUR behavior. In order to do so we have invented a false euro (FEUR) dating b...

    M. Ausloos, K. Ivanova in The European Physical Journal B - Condense… (2001)

  12. No Access

    Article

    Special issue on Econophysics

    What is “Econophysics"? Who is an “econophysicist"? The coining of a new scientific term, composed of the names of two fields, traditionally considered to be far from each other, brings new dreams to investiga...

    M. Ausloos in The European Physical Journal B - Condensed Matter and Complex Systems (2001)

  13. No Access

    Article

    Simultaneous measurements of thermal diffusivity, thermal conductivity and thermopower with application to copper and ceramic superconductors

    A home made experimental set-up allows us to measure the thermal conductivity, the thermopower and the thermal diffusivity simultaneously in the temperature range (20-300 K). Therefore the specific heat can be...

    H. Bougrine, J.F. Geys, S. Dorbolo… in The European Physical Journal B - Condense… (2000)

  14. No Access

    Article

    Monte-Carlo analysis of tracer diffusion mechanisms in YBa2Cu3O6+c

    A method for estimating, via the Monte-Carlo simulation, the most often realized diffusion mechanisms in 2D ordered structures is presented. Taking as an example the diffusion of oxygen ions in 123 — YBCO high te...

    K. Skwarek, A. Pȩkalski, M. Ausloos in The European Physical Journal B - Condense… (1999)

  15. No Access

    Article

    Visualizing the log-periodic pattern before crashes

    We present a method for visualizing the pattern which we believe to be a precursor signature of financial crashes (or ruptures). The log-periodicity of the pattern is investigated through the envelope function...

    N. Vandewalle, M. Ausloos, Ph. Boveroux… in The European Physical Journal B - Condense… (1999)

  16. No Access

    Article

    Low q-moment multifractal analysis of Gold price, Dow Jones Industrial Average and BGL-USD exchange rate

    An estimate of the low q-moment values of the assumed multifractal spectrum of Gold price, Dow Jones Industrial Average (DJIA) and Bulgarian Lev - USA Dollar (BGL-USD) exchange rate over a 6 1/2 year time span ha...

    K. Ivanova, M. Ausloos in The European Physical Journal B - Condense… (1999)

  17. No Access

    Article

    Multi-affine analysis of typical currency exchange rates

    For foreign currency exchange rates, multi-affine analysis can put quantitatively into evidence the differences between correlated (daily closing market) values and random walks in time dependent data. The H(q) s...

    N. Vandewalle, M. Ausloos in The European Physical Journal B - Condense… (1998)

  18. No Access

    Article

    How the financial crash of October 1997 could have been predicted

    From the analysis of (closing value) stock market index like the Dow Jones Industrial average and the S&P500 it is possible to observe the precursor of a so-called crash. This is shown on the Oct. 1987 and Oct...

    N. Vandewalle, M. Ausloos, P. Boveroux… in The European Physical Journal B - Condense… (1998)

  19. No Access

    Chapter

    Effect of Fluctuations on the Thermal Conductivity of High-TC Superconductors

    The superconductivity fluctuation contribution kfl to the thermal conductivity of Bi2Sr1.8Ca1.2Cu2O8+y and DyBa2Cu2O7-x polycrystals is extracted from precise experimental data. A crossover from 2D to 3D behavior...

    M. Houssa, H. Bougrine, M. Ausloos in Fluctuation Phenomena in High Temperature … (1997)

  20. No Access

    Chapter

    Electric Field Effects in High-T c Superconductors

    The concentration of mobile carriers (electrons and holes) governs the electron transport of any substance. In semiconductors essential electric field effects are prevalent. Only little influence of the electr...

    P. Konsin, B. Sorkin, M. Ausloos in Fluctuation Phenomena in High Temperature … (1997)

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