Particle & Particle Systems Characterization

Cover image for Particle & Particle Systems Characterization

April, 2007

Volume 23, Issue 6

Pages 427–492

  1. Contents

    1. Top of page
    2. Contents
    3. Research Articles
    4. Technical Note
    5. Research Article
    6. Calendar
    7. Instructions for Authors
  2. Research Articles

    1. Top of page
    2. Contents
    3. Research Articles
    4. Technical Note
    5. Research Article
    6. Calendar
    7. Instructions for Authors
    1. Particle Size Distributions from Static Light Scattering with Regularized Non-Negative Least Squares Constraints (pages 431–437)

      Alejandro R. Roig and José L. Alessandrini

      Version of Record online: 17 APR 2007 | DOI: 10.1002/ppsc.200601088

      An averaging procedure is applied upon inversion of simulated static light scattering data by a regularized non-negative least squares method. This procedure finally results in the most reasonable resolution of the particle size distribution which is obtainable for a given set of measurement data. The performance of the method is finally compared to that of constrained regularization.

    2. Sizing Polydisperse Dispersions by Focused Beam Reflectance and Small Angle Static Light Scattering (pages 438–447)

      Lyonel Ehrl, Miroslav Soos and Massimo Morbidelli

      Version of Record online: 17 APR 2007 | DOI: 10.1002/ppsc.200601081

      In this work two completely different methods for particle characterization are quantitatively compared. Resulting number and volume weighted mean diameters are compared for a broad range of particle size distributions ranging from 20 to 400 μm. In general, a good correlation of both methods was found. Furthermore the sensitivity of results to bimodal size distributions was found to be larger for the focused beam reflectance method.

    3. Combination of the Particle Size Distributions of Some Industrial Minerals Measured by Andreasen Pipette and Sieving Techniques (pages 448–456)

      Ugur Ulusoy, Meftuni Yekeler, Cevdet Biçer and Zeynep Gülsoy

      Version of Record online: 17 APR 2007 | DOI: 10.1002/ppsc.200500988

      This paper applies a sedimentation and a sieving technique for particle size distribution measurement of industrial minerals treated by different milling procedures. The combination of both methods clearly reveals useful information on particle shape which is demonstrated by comparison with SEM images.

    4. Aerodynamic Focusing Effect in a Rectangular Slit Real Impactor at Different Reynolds Numbers (pages 457–467)

      Sridhar Hari, Yassin A. Hassan and Andrew R. McFarland

      Version of Record online: 17 APR 2007 | DOI: 10.1002/ppsc.200500990

      Numerical investigations were performed to assess the effect of “aerodynamic focusing” achievable by varying the angle of approach (range from 15° to 75°) in the convergence section of a slit impactor. The resulting impactor efficiency curves and the corresponding cut-point values are given as function of Reynolds number and the angle of approach. A correlation relating these parameters is developed.

    5. A New Formulation of the Maximum Entropy Formalism to Model Liquid Spray Drop-Size Distribution (pages 468–479)

      Christophe Dumouchel

      Version of Record online: 17 APR 2007 | DOI: 10.1002/ppsc.200500989

      A new approach to model droplet size distributions from sprays using the maximum entropy formalism is presented introducing different physical constraints common to all atomization processes. The resulting function includes three parameters and their physical meaning is discussed in detail.

  3. Technical Note

    1. Top of page
    2. Contents
    3. Research Articles
    4. Technical Note
    5. Research Article
    6. Calendar
    7. Instructions for Authors
    1. Characterization of Sub-Micron Perovskite Suspensions Formed Through Cavitation Processing (pages 480–483)

      Matthew P. Braisted, Larry M. Cirjak, Donald L. Feke and Ica Manas-Zloczower

      Version of Record online: 17 APR 2007 | DOI: 10.1002/ppsc.200400952

      The properties of aqueous perovskite (LaCoO3) suspensions have been characterized in terms of particle size distribution and zeta-potential as a function of processing conditions. Furthermore, the influence of surfactants is shown and explained by their adsorption tendency, electrical charges and steric stabilization.

  4. Research Article

    1. Top of page
    2. Contents
    3. Research Articles
    4. Technical Note
    5. Research Article
    6. Calendar
    7. Instructions for Authors
    1. Particle Collection Theory for Cyclone Separators: Summary and Comparison (pages 484–488)

      Bingtao Zhao and Yaxin Su

      Version of Record online: 17 APR 2007 | DOI: 10.1002/ppsc.200400955

      The current status of the particle collection theory for cyclone separators, namely the theories of equilibrium-orbit, time-of-flight, hybrid and computational fluid dynamics approaches, is summarized in this paper. The calculated separation efficiencies are compared with the grade efficiency curves from experimental measurements.

  5. Calendar

    1. Top of page
    2. Contents
    3. Research Articles
    4. Technical Note
    5. Research Article
    6. Calendar
    7. Instructions for Authors
    1. Calendar of Particle Related Events (page 489)

      Version of Record online: 17 APR 2007 | DOI: 10.1002/ppsc.200790004

  6. Instructions for Authors

    1. Top of page
    2. Contents
    3. Research Articles
    4. Technical Note
    5. Research Article
    6. Calendar
    7. Instructions for Authors

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