Results 31 to 40 of about 129,909 (293)

The Fractal Dimension of SAT Formulas [PDF]

open access: yes, 2014
Modern SAT solvers have experienced a remarkable progress on solving industrial instances. Most of the techniques have been developed after an intensive experimental testing process. Recently, there have been some attempts to analyze the structure of these formulas in terms of complex networks, with the long-term aim of explaining the success of these ...
Carlos Ansótegui   +3 more
openaire   +6 more sources

From rock microstructure to macromechanical properties based on fractal dimensions

open access: yesAdvances in Mechanical Engineering, 2019
Basic rock mechanical parameters, that is, the uniaxial compressive strength σ c and elastic modulus E , have close relationships with the fractal dimension and inhomogeneity.
Dongmei Huang   +4 more
doaj   +1 more source

Algorithmic interpretations of fractal dimension

open access: yesCoRR, 2017
We study algorithmic problems on subsets of Euclidean space of low fractal dimension. These spaces are the subject of intensive study in various branches of mathematics, including geometry, topology, and measure theory. There are several well-studied notions of fractal dimension for sets and measures in Euclidean space.
Anastasios Sidiropoulos, Vijay Sridhar
openaire   +4 more sources

Chaotic motion in multi-black hole spacetimes and holographic screens [PDF]

open access: yes, 2006
We investigate the geodesic motion in $D-$dimensional Majumdar-Papapetrou multi-black hole spacetimes and find that the qualitative features of the D=4 case are shared by the higher dimensional configurations. The motion of timelike and null particles is
Bousso R.   +5 more
core   +2 more sources

Rock Mechanical Property Influenced by Inhomogeneity

open access: yesAdvances in Materials Science and Engineering, 2012
In order to identify the microstructure inhomogeneity influence on rock mechanical property, SEM scanning test and fractal dimension estimation were adopted.
Yunliang Tan, Dongmei Huang, Ze Zhang
doaj   +1 more source

Distribution and Fractal Characteristics of Outdoor Particles in High-Rise Buildings Based on Fractal Theory

open access: yesFractal and Fractional, 2023
It is of great significance to understand the particle distribution characteristics at different heights to effectively control particle pollution. Based on fractal theory, the fractal dimension of outdoor particles in a high-rise building in Xi’an and ...
Fuquan Liu   +3 more
doaj   +1 more source

Numerical Simulation of Rockfill Materials Based on Fractal Theory

open access: yesApplied Sciences, 2021
With the use of the particle flow code in two dimensions, a fractal model is established with the number of particles of different particle fractions used as the statistics to study the fractal characteristics of particle size distribution.
Hongxing Han   +4 more
doaj   +1 more source

Computability and Fractal Dimension [PDF]

open access: yes, 2004
This thesis combines computability theory and various notions of fractal dimension, mainly Hausdorff dimension. An algorithmic approach to Hausdorff measures makes it possible to define the Hausdorff dimension of individual points instead of sets in a metric space. This idea was first realized by Lutz (2000). Working in the Cantor space of all infinite
openaire   +2 more sources

The scattering from generalized Cantor fractals

open access: yes, 2010
We consider a fractal with a variable fractal dimension, which is a generalization of the well known triadic Cantor set. In contrast with the usual Cantor set, the fractal dimension is controlled using a scaling factor, and can vary from zero to one in ...
A. I. Kuklin   +28 more
core   +1 more source

Fractal Dimension of Coastal Soil Aggregates and Its Relationship with Physical and Chemical Soil Properties

open access: yesGuan'gai paishui xuebao, 2021
【Objective and objective】 Soil aggregate is a function unit commonly used to describe the impact of soil structure on soil fertility and quality. It is temporally dynamic, modulated by a myriad of biotic and abiotic factors such as wetting-drying cycles ...
HAN Xiao   +3 more
doaj   +1 more source

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