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Saturday, August 28, 2021 | History

4 edition of Aggregation and fractal aggregates found in the catalog.

Aggregation and fractal aggregates

R. Jullien

Aggregation and fractal aggregates

  • 324 Want to read
  • 13 Currently reading

Published by World Scientific in Singapore .
Written in English

    Subjects:
  • Set theory.,
  • Fractals.,
  • Cluster set theory.,
  • Statistical mechanics.

  • Edition Notes

    Bibliography: p. 111-120.

    StatementR. Jullien, R. Botet.
    ContributionsBotet, R.
    Classifications
    LC ClassificationsQC174.85.S46 J85 1987
    The Physical Object
    Paginationix, 120 p. :
    Number of Pages120
    ID Numbers
    Open LibraryOL2737794M
    ISBN 109971502488
    LC Control Number86032396


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Aggregation and fractal aggregates by R. Jullien Download PDF EPUB FB2

Aggregation and Fractal Aggregates by Robert Botet (Author), Remi Jullien (Author) out of 5 stars 1 rating. ISBN ISBN Why is ISBN important. ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book.

The digit and digit formats both by: Aggregation and fractal aggregates. Geometry of aggregates. The prefactork 0 of the fractal aggregate scaling relationshipNk 0 (R g a) D f is determined for both Diffusion Limited and Diffusion Limited Cluster Aggregation processes in spatial dimensions of 2, 3, 4, and 5.

For the physically relevant case of DLCA aggregates in three dimensions we findk 0 ± whenD f ± Comparison of all aggregation types shows that the Cited by:   The structure of hematite aggregates, considered to behave as fractal objects, is studied using static light scattering methods.

The fractal dimension obtained from the scattering exponent is found to be dependent on the aggregation mechanism and it ranges from for rapid (diffusion limited) to for slow (reaction limited) by:   Static light scattering was used to measure the fractal dimension, Df.

Results show that the two classes of universality (Lin et al. Nature, ) characterizing the diffusion- and reaction-limited regimes of clustercluster aggregation do apply to colloidal kaolinite as limit cases when W 1 or Wby:   Both aggregates have fluffy structures, while the DLCA aggregate is more open and does not have aggregation center.

Table 1. Radii of gyration (R g) of aggregates consist of different number of monomers and fractal dimension (D f) of DLA and DLCA aggregates, by: 2. The mass fractal approximation implies the following relationship between the primary particle diameter, the number of primary particles in an aggregate and the radius of gyration of an aggregate [3]: N kf (RgdP), where kf is a constant fractal prefactor and the aggregates are assumed to consist of monodisperse nonoverlapping spherical.

Curves and Fractal Dimension. Download or Read online Curves and Fractal Dimension full in PDF, ePub and kindle. This book written by Claude Tricot and published by Springer Science Business Media which was released on 18 November with total pages Aggregates are those formed via both diffusion and reaction limited cluster-cluster aggregation processes, DLCA and RLCA, which form aggregates with fractal dimensions and prefactors of ca.

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Fractal dimension analysis was employed to determine shape and surface texture of aggregates. Seven different aggregate blends of similar gradation containing coarse aggregate from percent uncrushed to percent crushed were used to prepare the asphalt concrete by: aggregates is independent of the size of the box es used to cov er the fractal aggregates.

Using this method to compute the fractal dimension we obtain a dif ferent value for each aggregate being. INTRODUCTION Aggregation phenomena are of central interest in biology, immunology, polymer and colloid science with important implications for problems such as the control of air and water pollution.

The structure of formed aggregates is fractal, which means that the aggregate mass scales as a power of its size. Holographic characterization of colloidal fractal aggregates.

Chen Wang,a Fook Chiong Cheong,b David B. Ruffner,b Xiao Zhong,c Michael D. Ward c and David G. Grier a. Author affiliations. Corresponding authors.

a Department of Physics and Center for Soft Matter Research, New York University, New York, NYUSA. E-mail:   The micro-texture of pavement layer aggregate has a direct influence on the skid resistance of pavement. In this paper, the 3D coordinate data of three kinds of aggregates surface is collected based on the surface profiler.

Using the box counting method, the MATLAB program is compiled and the 3D fractal dimension of the rock surface is : Lingjian Meng, Yue Hou, Zhenyu Qian, Linbing Wang, Meng Guo. Sorensen, C.Cai, J.Lu, N. () Light-scattering measurements of monomer size, monomers per aggregate, and fractal dimension for soot aggregates in flames.

The banded spherulites are composed of numerous fractal structures periodically branching out. Each fractal unit contains two portions: a main stalk (ridge) whose discrete crystalline aggregates are arranged along the radial direction and a fern-like dendrite (valley).

The aggregates are typically diffusion limited cluster aggregates (DLCA) with fractal dimensions of Dwhich occur frequently in aerosols and colloids, but other types of aggregates are.

This result may support the hypothesis that internal fractal organization of large and very large aggregates and the resulting porosity may lead to flow through the aggregate, which could result. The soot aggregates in location B1 exhibit complex fractal structures that are commonly found from mature soot aggregates, which, together with the increased soot aggregate size, indicates that.

Different kinds of fractal cluster were simulated by using the diffusion limited aggregation (DLA) model in this paper. The interaction multiple electromagnetic scattering liner equation of fractal aggregate soot was present in shaped Gaussiam beam incident case.

The localized approximation method was used to calculate the beam coefficients. And the mean-field approximation method was used to. 4 hours ago  Myxococcus xanthus bacteria are a model system for understanding pattern formation and collective cell behaviors. When starving, cells aggregate into fruiting bodies to form metabolically inert spores.

During predation, cells self-organize into traveling cell-density waves termed ripples. Both phase-contrast and fluorescence microscopy are used to observe these patterns but each has its.

Protein aggregation into insoluble, beta-sheet rich fibrillar aggregates [] is linked with the onset and progression of several amyloidosis [], including neurodegenerative disorders, such as Alzheimers, Parkinsons or prion diseases [3,4]. Years of research into this type of protein fibrillization has resulted in a general understanding of the steps and mechanisms involved in the.

Studied here are thin films of a series of phenyl-porphyrins. The effect of the phenyl number and positioning on the porphyrin core is shown to have a significant impact on the ability of phenyl-porphyrins to produce aggregates.

When four phenyl groups (H 2 TPP) and three phenyl groups are present (H 2 -Tri-PP) a strong aggregate film forms with fractal like structure. Compared to the bottom ash obtained by a water-cooling system (wBA), dry process bottom ash (dBA) makes hardly any unburnt carbon because of its stay time at the bottom of the boiler and contains less chloride because there is no contact with seawater.

Accordingly, to identify the chemical stability of dBA as a lightweight aggregate for construction purposes, the chemical properties of dBA. Aggregation, which is normally prevented by molecular chaperones, can occur as a result of different stimuli and lead to the formation of three different types of aggregates: amorphous, oligomeric, or fibrillar.

Except in the case of fibrillar aggregates, these proteins can return to their folded state. The Barnett critique states that there is an internal inconsistency between the theory that is implied by simple sum monetary aggregation (perfect substitutability among components) and the economic theory that produces the models within which those aggregates are used.

That inconsistency causes the appearance of unstable demand and supply for money. The incorrect inference of unstable money. Study on Broken Fractal of Concrete under Uniaxial Compression Author(s): WU Jianfeng, LI Huijian, WANG Caihua, MENG Deliang, LI Jiqin, Key Laboratory of Heavy Equipment and Large Scale Structural Mechanical Reliability, Yanshan University, Northeast Petroleum University Qinhuangdao Pages: Year: Issue: 7.

Concept: Search across key concepts mined from abstracts and full-text documents matching text Search across indexed text content in Pure, such as names, titles, descriptions etc.

Small-Angle Scatter Measurement. NASA Astrophysics Data System (ADS) Wein, Steven Jay. The design, analysis, and performance of a small - angle scatterometer are presented. The ef.