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Fractales
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1961“…All this indicates that the pore distribution of coal body with different compressed volume has fractal character; it appears to be the linear relationship between propagation range of internal stress field and compressed volume of coal body and nonlinear relationship between the range of outburst coal mass and the number of pores which is influenced by mining pressure. …”
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1962“…The soil data were converted to the USDA (United States Department of Agriculture) standard using PSD models and the fractal concept. The performance of PSD models was affected by soil texture and classification of fraction schemes. …”
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1963“…Whereas these common periodicities have been argued to have a galactic origin, this paper presents an alternative fractal model based on large scale fluctuations of the magnetic field of the Sun. …”
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1964“…In order to study the prognostic value of quantifying the chromatin structure of cell nuclei from patients with early ovarian cancer, low dimensionality adaptive fractal and Gray Level Cooccurrence Matrix texture feature vectors were extracted from nuclei images of monolayers and histological sections. …”
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1965“…Nonlinear systems often give rise to fractal boundaries in phase space, hindering predictability. …”
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1966“…The effects of the aspect ratio, percolation backbone structure and fractal characteristics of CNFs and the non-universality of the percolation critical exponents on the electrical properties are systematically reviewed. …”
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1967por Franus, Małgorzata, Jozefaciuk, Grzegorz, Bandura, Lidia, Lamorski, Krzysztof, Hajnos, Mieczysław, Franus, Wojciech“…Average pore radii, measured by MIP, decreased with an increasing oil concentration, whereas larger (MT) pore sizes tended to increase. Fractal dimension, derived from MIP data, changed similarly to the MIP pore radius, while that derived from MT remained unaltered. …”
Publicado 2016
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1968“…In addition, the classification accuracy of the proposed method is compared with several classical techniques, including fractal dimension (FD), sample entropy, differential entropy, and discrete wavelet transform (DWT). …”
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1969por Melton, Charles N., Riahinasab, Sheida T., Keshavarz, Amir, Stokes, Benjamin J., Hirst, Linda S.“…Notably, we find that assembly at the nematic phase front can force nanoparticle clustering at energetically unfavorable locations in the droplets to form stable hollow capsules and fractal clusters at the droplet centers.…”
Publicado 2018
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1970por Ventegodt, Søren, Hermansen, Tyge Dahl, Flensborg-Madsen, Trine, Rald, Erik, Nielsen, Maj Lyck, Merrick, Joav“…These phenomena are explained based on the concept of deep quantum chemistry and infinite dancing fractal spirals making up the energetic backbone of the world. …”
Publicado 2006
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1971“…Different from previous methods, the fractal interpolation is used to reconstruct the finer-granularity network traffic. …”
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1972por Salgia, Ravi, Mambetsariev, Isa, Hewelt, Blake, Achuthan, Srisairam, Li, Haiqing, Poroyko, Valeriy, Wang, Yingyu, Sattler, Martin“…Mathematical cancer models are immensely powerful tools that are based in part on the fractal nature of biological structures, such as the geometry of the lung. …”
Publicado 2018
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1973“…The targeted area was analyzed by eCLE and images were recorded. The fractal dimension of tumor vessels and the vessel density were determined using ImageJ software. …”
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1974por Hysi, Eno, Fadhel, Muhannad N., Moore, Michael J., Zalev, Jason, Strohm, Eric M., Kolios, Michael C.“…Numerical and physical phantoms were constructed to demonstrate that PA speckle carries information related to unresolved absorber structure in a manner similar to ultrasound speckle and unresolved scattering structures. A fractal-based model of the tumor vasculature was used to study PA speckle from unresolved cylindrical vessels. …”
Publicado 2019
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1975“…A fitting model for the size distribution of pits in seawater and sea-sand concrete (SSC) under different curing modes is established, and time-dependent fractal features are examined. Under wet/dry chloride cycles, the weight loss rate and corrosion rate of steel bars are higher, and the number of corrosion pits appears to increase on a small scale within 60-day. …”
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1976por Sadchatheeswaran, Saachi, Moloney, Coleen L., Branch, George M., Robinson, Tamara B.“…This method builds upon the analog methods routinely used on rocky shores and intertidal habitats, including those that measure rugosity, topography, fractals and volume. The method provides a direct Euclidean measurement and uniquely allows retrospective analysis if historical data on species composition are available. …”
Publicado 2019
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1977por Szeląg, Maciej“…It was attempted to explain the dependencies using elements of fractal theory and the theory of dispersion systems.…”
Publicado 2019
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1978“…Equivalent material (EM) is used to simplify the joint interface, which reduces the computational cost and modeling difficulty. Using a modified fractal model based on an oblique asperity contact, we calculated the elastic modulus, the shear modulus, the Poisson’s ratio, and the density of EM. …”
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1979por Vargas-Lopez, Olivia, Amezquita-Sanchez, Juan P., De-Santiago-Perez, J. Jesus, Rivera-Guillen, Jesus R., Valtierra-Rodriguez, Martin, Toledano-Ayala, Manuel, Perez-Ramirez, Carlos A.“…It is based on the adroit combination of the empirical mode decomposition, nonlinear measurements, such as the Higuchi fractal and permutation entropy, and a neural network. …”
Publicado 2019
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1980por da Silva, Thiago Alves Elias, da Silva, Lincoln Faria, Muchaluat-Saade, Débora Christina, Conci, Aura“…Features are extracted from the arrays, such as the ones based on statistical, clustering, histogram comparison, fractal geometry, diversity indices and spatial statistics. …”
Publicado 2020
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