Showing 161 - 180 results of 634 for search '"fractal"', query time: 0.05s Refine Results
  1. 161

    Nonlinearity and Fractal Properties of Climate Change during the Past 500 Years in Northwestern China by Shiquan Wan, Qunqun Liu, Jianxin Zou, Wenping He

    Published 2016-01-01
    “…By using detrended fluctuation analysis (DFA), the present paper analyzed the nonlinearity and fractal properties of tree-ring records from two types of trees in northwestern China, and then we disclosed climate change characteristics during the past 500 years in this area. …”
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    Fractal Study on the Failure Evolution of Concrete Material with Single Flaw Based on DIP Technique by Lulin Zheng, Hao Liu, Yujun Zuo, Quanping Zhang, Wei Lin, Qing Qiu, Xiaorong Liu, Ziqi Liu

    Published 2022-01-01
    “…In the early stages of loading, the AE energy is minimal, and increases rapidly when approaching the peak stress. The fractal dimension was used to describe the damage evolution process inside the material, and a damage variable index (ω) based on the fractal theory was proposed. …”
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    A Mathematical Model for the Analysis of the Pressure Transient Response of Fluid Flow in Fractal Reservoir by Jin-Zhou Zhao, Cui-Cui Sheng, Yong-Ming Li, Shun-Chu Li

    Published 2015-01-01
    “…This study uses similar construction method of solution (SCMS) to solve mathematical models of fluid spherical flow in a fractal reservoir which can avoid the complicated mathematical deduction. …”
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  7. 167

    Synthesis of Cobalt Oxides Thin Films Fractal Structures by Laser Chemical Vapor Deposition by P. Haniam, C. Kunsombat, S. Chiangga, A. Songsasen

    Published 2014-01-01
    “…Various factors which affect the density and crystallization of cobalt oxides fractal shapes have been examined. We show that the fractal structures can be described by diffusion-limited aggregation model and discuss a new possibility to control the fractal structures.…”
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  8. 168

    Applying fractional calculus to malware spread: A fractal-based approach to threat analysis. by Nausheen Razi, Muhammad Bilal Riaz, Ambreen Bano, Tayyab Kamran, Umar Ishtiaq, Anum Shafiq

    Published 2025-01-01
    “…We were interested in examining the impact of memory effects in this dynamical system in the sense of fractal fractional (FF) derivatives. In this paper, theoretical analysis is performed by concepts of fixed point theory. …”
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  9. 169

    On escape criterion of an orbit with s-convexity and illustrations of the behavior shifts in Mandelbrot and Julia set fractals. by Khairul Habib Alam, Yumnam Rohen, Naeem Saleem, Maggie Aphane, Asima Razzaque

    Published 2025-01-01
    “…It is commonly known that fractal geometry may capture the complexity of many intricate structures that exist in our surroundings.…”
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    Fractal cycles of sleep, a new aperiodic activity-based definition of sleep cycles by Yevgenia Rosenblum, Mahdad Jafarzadeh Esfahani, Nico Adelhöfer, Paul Zerr, Melanie Furrer, Reto Huber, Famke F Roest, Axel Steiger, Marcel Zeising, Csenge G Horváth, Bence Schneider, Róbert Bódizs, Martin Dresler

    Published 2025-01-01
    “…We introduce a new concept of ‘fractal cycles’ of sleep, defined as a time interval during which time series of fractal activity descend to their local minimum and ascend to the next local maximum. …”
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    Efficient sampling designs to assess biodiversity spatial autocorrelation: should we go fractal? by Laroche, Fabien

    Published 2024-08-01
    Subjects: “…beta-diversity, distance-decay, fractal, maximum likelihood, model-based inference, optimal design, sampling design, spatial autocorrelation…”
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    UHF Metamaterial Absorber with Small-Size Unit Cell by Combining Fractal and Coupling Lines by Shicheng Fan, Yaoliang Song

    Published 2018-01-01
    “…We present a perfect UHF metamaterial absorber by combining coupling lines and fractal lines with a very small unit cell. The proposed absorber consists of a surface metal structure and metallic background plane, separated by a dielectric substrate and air. …”
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    Study on the Fractal Dimension and Growth Time of the Electrical Treeing Degradation at Different Temperature and Moisture by Youping Fan, Dai Zhang, Jingjiao Li

    Published 2018-01-01
    “…The paper aims to understand how the fractal dimension and growth time of electrical trees change with temperature and moisture. …”
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