Mostrando 521 - 540 Resultados de 3,622 Para Buscar '"fractal"', tiempo de consulta: 0.42s Limitar resultados
  1. 521
    “…In particular, we considered the spatial distribution of connective tissue in the carotid bodies of young control subjects, young opiate-related deaths and aged subjects, through analysis of dispersion (Morisita's index), gray level co-occurrence matrix (entropy, angular second moment, variance, correlation), and fractal analysis (fractal dimension, lacunarity). …”
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  2. 522
  3. 523
    “…Recent advances in nanomaterial science have made increasingly possible the design of hierarchical surfaces with specific and tunable properties. Here, we report the fractal analysis of hierarchical single-walled carbon nanotube (SWCNT) films realized by a simple, rapid, reproducible, and inexpensive filtration process from an aqueous dispersion, then deposited by drytransfer printing method on several substrates, at room temperature. …”
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  4. 524
    “…Here, we design and synthesis a molecule, wherein, the input energy transmits in a cycle inside the molecular system, just like an oscillator, then, we use the molecule to make a jelly that acts as chain of oscillators with a fractal like resonance band. Hence, with the increasing detection resolution, in the vacant space between two energy levels of a given resonance band, a new band appears, due to fractal nature, generation of newer energy levels never stops. …”
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  5. 525
    por Shanhua, Xu, Songbo, Ren, Youde, Wang
    Publicado 2015
    “…To study multi-fractal behavior of corroded steel surface, a range of fractal surfaces of corroded surfaces of Q235 steel were constructed by using the Weierstrass-Mandelbrot method under a high total accuracy. …”
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  6. 526
    “…With an increasing emphasis on network security, much more attentions have been attracted to the vulnerability of complex networks. In this paper, the fractal dimension, which can reflect space-filling capacity of networks, is redefined as the origin moment of the edge betweenness to obtain a more reasonable evaluation of vulnerability. …”
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  7. 527
    por Qiuming, Cheng
    Publicado 2016
    “…We can modify the cooling models by substituting the ordinary mass density of lithosphere by fractal density with singularity. This new model provides a modified solution to fit the observed heat flow data used in other models in the literature throughout the age range. …”
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  8. 528
    “…In nature, fractal structures emerge in a wide variety of systems as a local optimization of entropic and energetic distributions. …”
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  9. 529
  10. 530
    “…Additionally, the VEP contains fine detailed and non-periodic structure, of presently unclear relevance to normal function, which may be quantified using the fractal dimension. The purpose of this study is to provide a systematic investigation of the key parameters in the measurement of the fractal dimension of VEPs, to develop an optimal analysis protocol for application. …”
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  11. 531
  12. 532
    “…Nature, in quest for the best designs has shaped its vital systems into fractal geometries. Effectual way of spontaneous fabrication of scalable, ordered fractal-like structures by controlling Saffman-Taylor instability in a lifted Hele-Shaw cell is deployed here. …”
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  13. 533
  14. 534
    por Xue, Yuankun, Bogdan, Paul
    Publicado 2017
    “…Through an elegant geometrical interpretation, the multi-fractal analysis quantifies the spatial and temporal irregularities of the structural and dynamical formation of complex networks. …”
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  15. 535
    por Zhang, Rui, Liu, Shimin, Wang, Yang
    Publicado 2017
    “…The results show that surface fractal dimension D (s) of inaccessible pores is greater than that for total pores based on SANS results for all four tested samples. …”
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  16. 536
    “…The proposed approach (namely WT–FD) is a wavelet transform (WT)-based method that combines fractal dimension (FD) analysis in the WT domain for the extraction of fHSs from the underlying noise. …”
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  17. 537
    “…Although collision cascades have previously been described as fractals, the correlation of their fractal parameters with experimental observations of radiation damage buildup remains elusive. …”
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  18. 538
    “…To support the use of fractal analysis to investigate myoelectric fatigue, it is crucial to establish the interdependence between fractal dimension and muscle contraction intensity. …”
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  19. 539
    “…By computing and filtering a bank of synthetic fractal signals, we established how scaling analysis can be focused on specific frequency components. …”
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  20. 540
    “…The presence of a chaotic saddle gives rise to basins of attraction with fractal boundaries and sometimes even to Wada boundaries. …”
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