Results 31 to 40 of about 21,898 (295)

Medical image security authentication method based on wavelet reconstruction and fractal dimension

International Journal of Distributed Sensor Networks, 2021
In this article, based on wavelet reconstruction and fractal dimension, a medical image authentication method is implemented. According to the local and global methods, the regularity of the mutation structure in the carrier information is analyzed ...
Tiankai Sun, Xingyuan Wang, Da Lin, Rong Bao, Daihong Jiang, Bin Ding, Dan Li   +6 more
doaj   +1 more source

From colloidal dispersions to colloidal pastesthrough solid–liquid separation processes [PDF]

, 2005
Solid–liquid separation is an operation that starts with a dispersion of solid particles in a liquid and removes some of the liquid from the particles, producing a concentrated solid paste and a clean liquid phase.
Botet, Robert, Cabane, Bernard, Madeline, J.B., Martin, Céline, Meireles, Martine, Persello, J, Schweins, R   +6 more
core   +6 more sources

Measurement of the Efficiency of Parallel Genetic Algorithm for Compress and Decompression of Fractal Imaging Using Multiple Computers [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics, 2013
Efficient technologies have  been recently used in Fractal Image Coding (FIC) to reduce the complexity of searching for matching between Range block and Domain block.
Shahla Abdul Qadir
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
core   +1 more source

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

Fractal Image Compression on Hexagonal Structure

Journal of Algorithms & Computational Technology, 2008
Fractal image compression (FIC) is a relatively recent image compression method. Its basic idea is to represent images as a fixed point of a contractive Iterated Function System (IFS).
Huaqing Wang, Xiangjian He, Tom Hintz, Qiang Wu   +3 more
doaj   +1 more source

An Experimental Study on the Microstructure Evolution of Soil under Lateral Consolidation Compression

Applied Sciences, 2022
Based on the lateral consolidation compression experiment of remolded soil simulating the effects of pile driving and soil squeezing, in this paper, the microstructures of soil with different degrees of lateral consolidation were investigated by a ...
Xiao Zhang, Zhi Ding, Shao-Heng He, Gui-Di Zhang, Miao-Miao Sun, Tang-Dai Xia   +5 more
doaj   +1 more source

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

Advanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig, Egzon Cermjani, Doris Hanselmann, Johannes Prieschl, Angelika Schmitt, Michael S. Moritz, Christian Papp, Greta Nölke, Stefano Di Fiore, Christoph Deckers, Thomas H. Rehm, Susanne Wintzheimer   +11 more
wiley   +1 more source

Research on image compression encoding based on fixed dictionary

Systems Science & Control Engineering
With the widespread application of IoT technology, a large amount of image data must be transmitted through networks. Owing to the current limited bandwidth, it is necessary to compress images to satisfy the requirements for real-time image transmission.
Lifeng Li, Yanli Du, Yan-Hong Liu, Hua Yang   +3 more
doaj   +1 more source

Anew method for speeding up FractalCompression using different value of affine transformation and highest gray value of pixel

Journal of Kufa for Mathematics and Computer, 2012
In this paper  new algorithm for  speeding up fractal image compression  is presented. A new adapted method based on computing the highest value of the pixel of the image to reduce the computational complexity in the encoder stage and which are led ...
Hind Rostom Mohammed, Hanaa Muhsen Ali
doaj   +1 more source