Results 261 to 270 of about 6,731,484 (300)

Prediction of the solid effective thermal conductivity of fatty acid/carbon material composite phase change materials based on fractal theory

Energy, 2019
The thermal conductivity of a phase change material (PCM) is an important parameter that affects the heat transfer characteristics of PCM. In this study, the fractal theory is conducted to study the prediction model of the effective thermal conductivity ...
Yanlin Song, Nan Zhang, Yanping Yuan, Li Yang, Xiaoling Cao   +4 more
semanticscholar   +1 more source

Characterizing the spatial variability of soil particle size distribution in an underground coal mining area: An approach combining multi-fractal theory and geostatistics

CATENA, 2019
Long-term underground coal mining activities results in severe surface deformation and land subsidence, altering soil physical properties significantly.
Jinman Wang, Jiarui Zhang, Yu Feng
semanticscholar   +1 more source

An assessment method for shale fracability based on fractal theory and fracture toughness

Engineering Fracture Mechanics, 2019
Staged fracturing of a horizontal well may cause artificial fractures to intersect with weak structural planes, including a great number of natural fractures and stratifications in the shale, which will then form a complicated fracture network.
Guofa Ji, Kuidong Li, Gongshe Zhang, Shaoming Li, Lei Zhang   +4 more
semanticscholar   +1 more source

A Multiresolution Approximation Theory of Fractal Transform

Fractals, 1997
In this paper, we show that the fractal transform (FT) constitutes a multiresolution approximation to the square-integrable space L2(Td) for d≥1, where T is the interval (-∞,∞). This provides a theoretical basis for the successful applications of the fractal transform algorithms in signal/image encoding.
Cheng, Bing, Zhu, Xiaokun
openaire   +1 more source

A model for the effective thermal conductivity of moist porous building materials based on fractal theory

International Journal of Heat and Mass Transfer, 2018
An accurate estimation of building material thermal conductivity is crucial for the modeling of heat transfer processes and the calculation of building energy consumption.
Yingying Wang, Chao Ma, Yanfeng Liu, D. Wang, Jiaping Liu   +4 more
semanticscholar   +1 more source

KNOT THEORY, PARTITION FUNCTION AND FRACTALS

Journal of Knot Theory and Its Ramifications, 1996
In this paper we first provide the open chain and the closed chain method to calculate the partition functions of the typical fractal lattices, i.e. a special kind of Sierpinski carpets(SC) and the triangular Sierpinski gaskets(SG). We then apply knot theory to fractal lattices by changing lattice graphs into link diagrams according to the interaction
Ge, Mo-Lin, Hu, Liangzhong, Wang, Yiwen
openaire   +2 more sources

Applying Fractal Theory to Characterize the Pore Structure of Lacustrine Shale from the Zhanhua Depression in Bohai Bay Basin, Eastern China

Energy & Fuels, 2018
The complexity of the shale pore structure, which can be assessed by the fractal dimension, will affect the percolation and reservoir capability of a shale; thus, the pore structure is important for shale reservoir evaluation.
Jianping Yan, Shaolong Zhang, Jun Wang, Q. Hu, Min Wang, Jing Chao   +5 more
semanticscholar   +1 more source

Normal contact analysis for spherical pump based on fractal theory

Tribology International, 2018
Spherical pump has a ball-in-socket contact pattern between piston and cylinder. Therefore, traditional Hertz contact theory is not applicable and fractal theory is employed to investigate the conformal contact between piston and cylinder in this paper ...
D. Guan, Li Jing, Junjie Gong, Hui Shen, H. Hilton   +4 more
semanticscholar   +1 more source

Landslide susceptibility assessment for a transmission line in Gansu Province, China by using a hybrid approach of fractal theory, information value, and random forest models

Environmental Earth Sciences, 2021
Binbin Zhao, Y. Ge, Hongzhi Chen
semanticscholar   +1 more source

Fractal Theory

2021
Fredrick Madaraka Mwema, Esther Titilayo Akinlabi, Oluseyi Philip Oladijo   +2 more
openaire   +1 more source