Article
Engineering, Civil
Haoxiang He, Shuyu Tian, Yaoyuan Zhang
Summary: This study proposes a method based on fractal theory and image processing technology to accurately and quickly measure the cumulative damage of beam structures. By establishing the relationship between the fractal dimension of cracks and mechanical parameters, the study finds that the fractal dimension can reveal the evolution process of structural damage.
Article
Construction & Building Technology
Yangzhao Liu, Kaoshan Dai, Desheng Li, Mingyan Luo, Ye Liu, Yuanfeng Shi, Jun Xu, Zhenhua Huang
Summary: In this paper, a rapid damage assessment method of concrete components based on the fractal characteristics of concrete cracks was proposed. By establishing databases of crack FD versus loading-ratio, linear regressions were used to predict loading ratio for damage assessment. Experimental results showed that the proposed method is reliable for identifying potential damage levels in concrete components.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Engineering, Biomedical
Kunkun Zhao, Haiying Wen, Zhisheng Zhang, Chuan He, Jiankang Wu
Summary: The study evaluated the feasibility of FCs in motor dyskinesia assessment, showing that FCs are better than TFFs for assessing motor dyskinesia levels. Fractal characteristics can capture the disorder of the central nervous system, providing a new perspective for assessment.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2021)
Article
Multidisciplinary Sciences
Qindong Fan, Xuejian Mei, Chenming Zhang, Hang Wang
Summary: The analysis of urban spatial form is fundamental to urban development. Traditional fractal research often focuses on the urban spatial layout, lacking a visually expressive representation of the specific form, characteristics, and development trends of urban architectural spaces. This study simplifies urban architectural forms and establishes correlations between architectural form and fractal dimension. The case study reveals that Zhengzhou City exhibits obvious fractal characteristics in its architectural layout. The combination of two-dimensional and three-dimensional fractal dimensions helps to comprehensively reveal architectural layout information. This study promotes the visualization of fractal theory and its application to spatial gradients, providing theoretical and data references for optimizing urban spatial form.
Article
Construction & Building Technology
Rouibi Mohammed, Chouicha Kaddour
Summary: The study primarily focuses on estimating the porosity of dry granular mixtures and determining the optimal fractal dimension and vibration duration for minimal porosity. Experimental results showed that the minimum porosity of dry granular mixtures can be achieved with an optimal fractal dimension close to 2.8 and a vibration duration of 10 seconds under specific conditions.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Mathematics, Interdisciplinary Applications
Alvar Daza, Alexandre Wagemakers, Miguel A. F. Sanjuan
Summary: A classification of the most common basins in nonlinear dynamics is provided using basin entropy, and interesting connections between basin entropy and other measures of unpredictability associated with basins of attraction are found.
CHAOS SOLITONS & FRACTALS
(2022)
Article
Materials Science, Multidisciplinary
Yanguang Chen
Summary: The time series of fractal dimension values of urban form always take on sigmoid curves, with the basic model being the logistic function. From these curves, the speed and acceleration formulas of urban growth can be derived, and the inflexions of the fractal parameter curves can be used to identify different phases of city development.
RESULTS IN PHYSICS
(2023)
Article
Engineering, Multidisciplinary
Shuaibing Li, Jiaqi Cui, Yongqiang Kang
Summary: In this study, the relationship between the aging state and surface texture change of transformer insulating paper was explored. Through experiments and the use of various texture features and extreme learning machine algorithm, it was found that the texture features extracted from the fractal dimension of micro images can effectively assess the aging state of insulating paper.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES
(2022)
Article
Mathematics, Interdisciplinary Applications
Fuquan Liu, Tao Yu, Wenjun Leng, Xin Zhang
Summary: Understanding the distribution characteristics of particles at different heights is crucial for effectively controlling particle pollution. This study discusses the fractal dimension of outdoor particles in a high-rise building in Xi'an and its relationship with particle concentration. The results show that Xi'an's atmosphere is mainly composed of fine particles, and locations with higher fractal dimensions have a higher proportion of fine particles. The fractal dimension can also characterize the adsorption of toxic and harmful gases by particles.
FRACTAL AND FRACTIONAL
(2023)
Article
Computer Science, Information Systems
Hainan Wang, Baochang Zhang, Wei Chen
Summary: The proposed multiple fractal dimensions (MFD) method is effective for robust object description, showing invariance to local variations. It is applied to land-use scene recognition, face recognition, expression recognition, and pedestrian detection, achieving superior performance in terms of recognition rates over state-of-the-art methods.
MULTIMEDIA TOOLS AND APPLICATIONS
(2021)
Article
Psychology, Multidisciplinary
Kelly E. Robles, Michelle Roberts, Catherine Viengkham, Julian H. Smith, Conor Rowland, Saba Moslehi, Sabrina Stadlober, Anastasija Lesjak, Martin Lesjak, Richard P. Taylor, Branka Spehar, Margaret E. Sereno
Summary: Fractal patterns, highly prevalent in nature, impact human perception and can promote occupant wellbeing in human-made environments. The composite fractal 'global-forest' designs demonstrate how fractal pattern components are associated with positive psychological experiences. The balance between increased engagement desire and decreased relaxation desire in fractal design installations drives fractal preference and can be beneficial for occupant wellbeing.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Pelin Alaboz, Orhan Dengiz, Sinan Demir, Huseyin Senol
Summary: This study examines soil erosion susceptibility parameters using decision trees and multiple interpolation methods. There are significant correlations between aggregate stability and mass fractal dimension, which are utilized as nodes in decision trees. The highest prediction accuracy is achieved with the CART algorithm in determining soil erosion factors and aggregate stability.
Article
Mathematics, Interdisciplinary Applications
Alessio Perinelli, Roberto Iuppa, Leonardo Ricci
Summary: This paper investigates the use of Takens estimator for correlation dimension estimation on a sphere. It shows that using geodetic and Euclidean metrics results in different biases through two analytically tractable cases. The analysis provides a cue for studying fractal geometries in seismology.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Construction & Building Technology
Boxin Wang, Jiahuan Guo, Jiaqi Liu, Qing Wang
Summary: By conducting experiments and tests, this study investigates the effects of concrete water-cement ratios, grid sizes, and fiber bundle Tex content on the permeability of textile-reinforced concrete (TRC), and establishes a permeability prediction model. The results show that the permeability of TRC increases with decreasing grid size, increasing Tex content, and increasing water-cement ratio.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Environmental Sciences
Matan Yuval, Naama Pearl, Dan Tchernov, Stephane Martinez, Yossi Loya, Avi Bar-Massada, Tali Treibitz
Summary: Extreme weather events are becoming more frequent and severe, making it crucial to understand their impacts and how to mitigate them. In this study, we utilized advanced computational tools and 3D reconstructions to analyze the effects of a powerful storm on coral reef complexity. Our findings indicate a decline in structural complexity followed by recovery over time at several sites.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Electrical & Electronic
Mateusz P. Popek, D. Robert Iskander
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2020)
Article
Ophthalmology
D. Robert Iskander, Malgorzata A. Kostyszak, Danilo A. Jesus, Malgorzata Majewska, Monika E. Danielewska, Patrycja Krzyzanowska-Berkowska
OPTOMETRY AND VISION SCIENCE
(2020)
Article
Ophthalmology
Izabela Katarzyna Garaszczuk, Maryam Mousavi, Dorota H. Szczesna-Iskander, Alejandro Cervino, D. Robert Iskander
OPTOMETRY AND VISION SCIENCE
(2020)
Article
Multidisciplinary Sciences
Agnieszka Wylomanska, D. Robert Iskander, Krzysztof Burnecki
Article
Ophthalmology
Alejandra Consejo, Jedrzej Solarski, Karol Karnowski, Jos J. Rozema, Maciej Wojtkowski, D. Robert Iskander
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY
(2020)
Article
Biochemistry & Molecular Biology
Agnieszka Olzynska, Alicja Wizert, Martin Stefl, D. Robert Iskander, Lukasz Cwiklik
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2020)
Article
Multidisciplinary Sciences
Patrycja Krzyzanowska-Berkowska, Karolina Czajor, D. Robert Iskander
Summary: The study found that impaired ocular blood flow associated with lamina cribrosa deformation in glaucoma patients, whereas glaucoma suspects had similar lamina cribrosa shape to glaucoma patients but the deformation was not associated with ocular blood flow biomarkers.
Article
Optics
Dominika Sulot, David Alonso-Caneiro, D. Robert Iskander, Michael J. Collins
Proceedings Paper
Computer Science, Hardware & Architecture
Radoslaw Rynca, D. Robert Iskander
INFORMATION SYSTEMS ARCHITECTURE AND TECHNOLOGY, ISAT 2019, PT III
(2020)
Meeting Abstract
Ophthalmology
D. Robert Iskander, Alejandra Consejo, Jedrzej Solarski, Karol Karnowski, Maciej Wojtkowski
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2020)
Meeting Abstract
Ophthalmology
Malgorzata Anna Kostyszak, Monika Ewa Danielewska, Marcela Niemczyk, Daniel Lewandowski, D. Robert Iskander
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2020)
Meeting Abstract
Ophthalmology
Monika Ewa Danielewska, Agnieszka Antonczyk, Maja M. Rogala, Danilo Andrade De Jesus, Anna Blonska, Marek Cwirko, Zdzislaw Kielbowicz, D. Robert Iskander
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2020)
Meeting Abstract
Ophthalmology
Marcela Niemczyk, Malgorzata Anna Kostyszak, Monika Ewa Danielewska, D. Robert Iskander
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2020)
Meeting Abstract
Ophthalmology
Dominika Sulot, David Alonso-Caneiro, Patrycja Krzyzanowska-Berkowska, D. Robert Iskander
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2020)
Article
Computer Science, Information Systems
Piotr D. Szyperski, D. Robert Iskander