Results 31 to 40 of about 30,626 (312)

Comparison of Fractal Compression Methods of Images

Proceedings of the International Conference on Applied Innovations in IT
This article is a report on the results of a comparative analysis of various most commonly used methods of fractal image compression: actually, fractal compression, compression using iterated functional systems, compression based on quad trees. Nowadays,
Tolaniddin Nurmukhamedov, Bakhodir Achilov, Odilzhan Turdiev   +2 more
doaj   +1 more source

RESEARCH ON 3D BUILDING VISUALIZATION BASED ON TEXTURE SIMPLIFICATION AND FRACTAL COMPRESSION [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
There are some problems in the visualization of 3D model of buildings at present, such as redundant texture data and large memory occupation of loading texture data, which pose challenges to the smooth loading of 3D building visualization. In this paper,
X. Bao, G. Q. Zhou, T. Yue, H. Y. Wang, W. X. Zhang, Y. S. Huang, J. S. Ni   +6 more
doaj   +1 more source

Using small-angle X-ray scattering to investigate the compaction behaviour of a granulated clay [PDF]

, 2015
The compaction behaviour of a commercial granulated clay (magnesium aluminium smectite, gMgSm) was investigated using macroscopic pressure-density measurements, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray microtomography (XμT) and ...
Aguzzi, Asare-Addo, Aulton, Baille, Barbara R. Conway, Baruchel, Beckett, Berisso, Briscoe, Busignies, Chipera, Djemai, Enes Šupuk, Feigin, Francis Sweeney, German, Hammond, Han, Ito, Kandeil, Kim, Kofi Asare-Addo, Kuklíc, Laity, Laity, Laity, Laity, Laity, Laity, Laity, Liddiard, Macleod, Mc.Donald, Mondol, Morel, Moyano, Murray, Nebgen, Oh, Peter R. Laity, Pizette, Pongjanyakul, Prakash, Rahaman, Roe, Romero, Schmidt, Sinka, Sinka, Sorensen, Stock, Sun, Tien, Train, Vanorio, Villamizar, Villar, Villar, Wu, Ye   +59 more
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An ACO algorithm for image compression

CLEI Electronic Journal, 2006
This paper is an application of Ant Colony Metaheuristic (ACO) to the problem of image fractal compression using IFS. An ACO hybrid algorithm is proposed for image fractal compression and the results obtained are shown. According to the tests carried out,
Cristian Martinez
doaj   +1 more source

An experimental study of the fracture morphology of marble under dynamic loading

Shuiwen dizhi gongcheng dizhi, 2022
To investigate the fracture morphology characteristics of marble under dynamic loading, the dynamic compression and splitting tests of rock samples under different impact velocities are carried out using the split-Hopkinson pressure bar.
Weixiang WANG, Zhiliang WANG, Shuailong JIA, Zhitang Lu   +3 more
doaj   +1 more source

A comprehensive fractal approach in determination of the effective thermal conductivity of gas diffusion layers in polymer electrolyte membrane fuel cells [PDF]

, 2017
The challenges in the fuel cell industry is to produce the efficient thermal and water management for accurate determination of the effectiveness thermal conductivity of gas diffusion layers (GDL) used in polymer electrolyte membrane fuel cells (PEMFC‟
Azizan, Mohd Fikri
core   +1 more source

Evolution Rules of Fractures for Mudstone under Compression Shear Load and the Fractal Characteristics of Broken Blocks

Advances in Civil Engineering, 2019
Failure of rocks is commonly induced by compressive and shear coupling loading. Knowledge of the mechanism and process of deformation and failure of rocks under compressive shear loading condition is an important basis for the study of stability in rock ...
Zhaoyun Chai, Jinbo Bai, Haiyang Zhang, Pan Yang   +3 more
doaj   +1 more source

SANS study of hybrid silica aerogels under "in situ" uniaxial compression [PDF]

, 2008
We have modified the inorganic silica network of aerogels with polydimethylsiloxane (PDMS), a hydroxyl-terminated polymer, to obtain an organic modified silicate (ORMOSIL). Reactions were assisted by high-power ultrasounds.
Esquivias Fedriani, Luis María, Keiderling, Uwe, Morales Flórez, Víctor, Piñero, Manuel, Rosa Fox, Nicolás de la, Toledo Fernández, J. A.   +5 more
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Study on the relation between damage and permeability of sandstone at depth under cyclic loading

International Journal of Coal Science & Technology, 2019
The damage and permeability evolution of rock under stress is of great significance to engineering safety. In this paper, the evolution law of rock damage and permeability is studied by means of acoustic emission (AE) seepage experiment on deep roof ...
Yang Zhao, Hongwei Zhou, Jiangcheng Zhong, Di Liu   +3 more
doaj   +1 more source

Effects of surface structure deformation on static friction at fractal interfaces

, 2013
The evolution of fractal surface structures with flattening of asperities was investigated using isotropically roughened aluminium surfaces loaded in compression. It was found that asperity amplitude, mean roughness and fractal dimension decrease through
Einav, Itai, Gan, Yixiang, Hanaor, Dorian A H   +2 more
core   +1 more source