Results 41 to 50 of about 964,966 (303)

Comparison of gliding box and box-counting methods in river network analysis [PDF]

open access: yesNonlinear Processes in Geophysics, 2007
We use multifractal analysis to estimate the Rényi dimensions of river basins by two different partition methods. These methods differ in the way that the Euclidian plane support of the measure is covered, partitioning it by using mutually exclusive ...
A. Saa   +4 more
doaj  

Monofractal Dimension in Quantifying the Image of Neurons in the Plane: Analysis of Image Features of Multipolar Neurons from the Principal Olivary Nucleus in Humans with Age

open access: yesFractal and Fractional, 2022
The existing study examines four features of 2D images from the principal olivary nucleus of the adult human. The main goal of the research is to investigate the relationship between monofractal and computational parameters that quantify three features ...
Nebojša Milošević
doaj   +1 more source

Childhood Acute Lymphoblastic Leukemia Survival in Western Kenya: Reduction in Early Deaths and Treatment Abandonment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background An earlier study on children diagnosed with acute lymphoblastic leukemia (ALL) at Moi Teaching and Referral Hospital (MTRH) in Kenya reported a low event‐free survival (EFS), excess treatment abandonment, and high induction mortality.
Gilbert Olbara   +7 more
wiley   +1 more source

Fractal analysis in the quantification of medical imaging associated with multiple sclerosis pathology

open access: yesFrontiers in Bioscience-Landmark, 2022
Backgrounds: Multiple sclerosis (MS) is an inveterate phlogistic situation characterized by focal and vaguely diffusive de-myelination and neurodegeneration, in the sphere of central nervous system (CNS).
Maria-Alexandra Paun   +3 more
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Fractal Geometry of Architecture: Implementation of the Box-Counting Method in a CAD-Software [PDF]

open access: yes, 2009
The author describes the basic principles for measuring architecture from the point of view of Fractal Geometry outlining the principle connections between Fractal Geometry and architecture, giving some examples and explaining the Box-Counting Method ...
W.E. Lorenz
core  

Box Detection and Counting Using Improved YOLOv7

open access: yesJournal of Harbin University of Science and Technology
With the rapid development of intelligent warehouse management, accurate detection and counting of boxes has become particularly important. However, factors such as lighting and occlusion in complex backgrounds have a negative impact on box detection ...
ZHAO Lunkai   +7 more
doaj   +1 more source

Fractal Features of Urban Fabrics and Urban Landscapes in Algiers, Tokyo and New York

open access: yesCybergeo, 2022
This research aims to explore the fractal features within three districts: Beb-el-Oued (Algiers), Chiyoda-ku (Tokyo), and lower Manhattan (New York). It is based on the study of (A) the evolution of the morphological identity of urban fabrics, and (B ...
Lemya Kacha   +2 more
doaj   +1 more source

Box-counting dimensions of generalised fractal nests [PDF]

open access: yesChaos, Solitons & Fractals, 2018
Fractal nests are sets defined as unions of unit $n$-spheres scaled by a sequence of $k^{-α}$ for some $α>0$. In this article we generalise the concept to subsets of such spheres and find the formulas for their box counting dimensions. We introduce some novel classes of parameterised fractal nests and apply these results to compute the dimensions ...
openaire   +3 more sources

Combining Fractals and Box-Counting Dimension

open access: yesApplied Mathematics, 2021
In this paper, the box-counting dimension is used to derive an explicit formula for the dimension of a fractal constructed using several contractions or by combining fractals. This dimension agrees with the Hausdorff dimension in the particular case when the scales factors considered are all the same.
openaire   +2 more sources

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