Showing 181 - 200 results of 486 for search '"fractal"', query time: 0.06s Refine Results
  1. 181

    Relationship between Permeability Coefficient and Fractal Dimension of Pore in Ionic Rare Earth Magnesium Salt Leaching Ore by Dan Wang, Yunzhang Rao, Liang Shi, Wei Xu, Tao Huang

    Published 2022-01-01
    “…The results show that in MgSO4 solution, the permeability coefficient of the sample changes significantly, and the growth rate of pore fractal dimension remains large. By discussing the evolution law of pore fractal dimension and seepage characteristics of ionic rare earth, the mathematical relationship between permeability coefficient and pore fractal dimension of mineral soil samples at different depths is fitted by polynomial function.…”
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  2. 182

    Implementation of Fractal Dimension and Self-Organizing Map to Detect Toxic Effects of Toluene on Movement Tracks of Daphnia magna by Yuedan Liu, Chunlei Xia, Zhongya Fan, Renren Wu, Xianglin Chen, Zuoyi Liu

    Published 2018-01-01
    “…The general complexity in movement tracks (10 minutes) was characterized by fractal dimension. Results showed that average fractal dimension of movement tracks was decreased from 1.62 to 1.22 after treatments. …”
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    Study on Pore Structure and Fractal Characteristics of Tar-Rich Coal during Pyrolysis by Mercury Intrusion Porosimetry (MIP) by Zhendong Wang, Pengfei Jiang, Fu Yang, Yuanyuan Kong, Li Ma, Bohan Xie, Zhonghui Duan

    Published 2022-01-01
    “…This study aims to show how fractal analysis can be effectively used to characterize the pore structure of porous tar-rich coal. …”
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  6. 186

    The Nondifferentiable Solution for Local Fractional Tricomi Equation Arising in Fractal Transonic Flow by Local Fractional Variational Iteration Method by Ai-Min Yang, Yu-Zhu Zhang, Xiao-Long Zhang

    Published 2014-01-01
    “…We present the nondifferentiable approximate solution for local fractional Tricomi equation arising in fractal transonic flow by local fractional variational iteration method. …”
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    An Online Degradation Feature Extraction Technique for Shore Bridge Gearbox Based on Morphological Fractal Dimension and Sliding Window Weibull Fitting by Dejian Sun, Bing Wang, Xiong Hu, Wei Wang

    Published 2019-01-01
    “…The results show that the morphological fractal dimension is able to describe the fractal complexity of the vibration energy spectrum. …”
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    Effects of the FR 4 Substrate Realized in a Circularly Polarized UHF-RFID Reader Antenna with Fractal Geometry for Enhancing Parameters by Chitra Varadhan, S. Arulselvi, Fekadu Ashine Chamatu

    Published 2021-01-01
    “…The proposed antenna model is realized with fractal structure to achieve miniaturization. The developed antenna is optimized using EM software for numerical analysis. …”
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  14. 194

    A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites by Jorge Simon, Jorge Flores-Troncoso, Jose Luis Alvarez-Flores, Leonel Soriano-Equigua, Marco Cardenas-Juarez, Armando Arce, Edgar Briones, Jorge Sosa-Pedroza

    Published 2020-01-01
    “…This article presents the design, fabrication, and measurement of a square Koch fractal slot antenna for UHF band using both the FR4-G10 and Cuclad 250 substrates. …”
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    X-Ray CT Investigation on Fractal Characteristics of Fine-Grained Tailing Sand in Fujian’s Makeng: Insight into the Mesoscopic Seepage Failure by Dayu Long, Changhong Li, Yu Wang, Yueqi Shi

    Published 2021-01-01
    “…The macroscopic seepage tests combined with posttest X-ray computed tomography (CT) were employed to study the fractal characteristics of mesostructure. Results show that before and after the seepage failure of fine-grained tailing sand, fractal of pore distribution (Dpd) and fractal dimension of pore size (Dps) show a relatively obvious positive correlation with porosity. …”
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    Pore Structure and Fractal Characteristics of Shale under the Control of Bedding and Size: A Case Study of Shale from the Longmaxi Formation in China by Yao Cheng, Yifeng Xie, Yulin Ma, Yanlin Zhao

    Published 2021-01-01
    “…These fractal dimensions characterized the pore surface and pore structure complexity, respectively. …”
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