Results 41 to 50 of about 282,631 (306)

Merkle-Damgård Construction Method and Alternatives: A Review

open access: yesJournal of Information and Organizational Sciences, 2017
Cryptographic hash function is an important cryptographic tool in the field of information security. Design of most widely used hash functions such as MD5 and SHA-1 is based on the iterations of compression function by Merkle-Damgård construction method ...
Harshvardhan Tiwari
doaj   +1 more source

Strategies for high-performance resource-efficient compression of neural spike recordings. [PDF]

open access: yesPLoS ONE, 2014
Brain-machine interfaces (BMIs) based on extracellular recordings with microelectrodes provide means of observing the activities of neurons that orchestrate fundamental brain function, and are therefore powerful tools for exploring the function of the ...
Palmi Thor Thorbergsson   +3 more
doaj   +1 more source

Wavelet compression of video images with measurement information in automated systems

open access: yesТехнічна інженерія, 2020
Video images with measuring information in automated systems have a large volume. For example, the volume of video images of structures of natural origin is kilos and megabytes of information.
Yu.O. Podchashinskiy   +3 more
doaj   +1 more source

Weaknesses in the HAS-V Compression Function [PDF]

open access: yes, 2007
HAS-V is a cryptographic hash function which processes 1024-bit message blocks and produces a hash value of variable length. The design of the hash function is based on design principles of the MD4 family. Recently, weaknesses have been shown in members of this family. Therefore, the analysis of the HAS-V hash function is of great interest. To the best
Mendel, Florian, Rijmen, Vincent
openaire   +2 more sources

Impaired microvascular endothelial function is restored by acute lower-limb exercise in post-surgical varicose vein patients [PDF]

open access: yes, 2008
Evidence exists that cutaneous microvascular endothelial dysfunction persists in patients following varicose vein surgery. This study compared cutaneous microvascular function between post-surgical varicose vein patients and healthy controls and ...
Klonizakis, M.   +8 more
core   +1 more source

Image Compression Based on Block SVD Power Method

open access: yesJournal of Intelligent Systems, 2019
In recent years, the important and fast growth in the development and demand of multimedia products is contributing to an insufficiency in the bandwidth of devices and network storage memory.
Asnaoui Khalid El
doaj   +1 more source

Establishment of a Laminated Crushed Products Function and Numerical Analysis

open access: yesEnergies, 2019
A model of the relative compression ratio for single-particle crushed products, based on the distinct element method (DEM) and numerical analysis, was established to describe precisely the crushed products of granular particles during laminated crushing.
Guochen Duan   +3 more
doaj   +1 more source

Supervised exercise training as an adjunctive therapy for venous leg ulcers: study protocol for a randomised controlled feasibility trial [PDF]

open access: yes, 2015
Background Venous leg ulcers are common, chronic wounds that are painful and reduce quality of life. Compression therapy is known to assist in the healing of venous leg ulceration.
Gumber, Anil   +18 more
core   +1 more source

Estimation of the parameters of continuous-time systems using data compression [PDF]

open access: yes, 2008
This chapter provides a unified introductory account of the estimation of the parameters of continuous-time systems using data compression based on a number of previous ...
Johansson, Rolf   +2 more
core   +1 more source

New horizons in the compression of functional decline [PDF]

open access: yesAge and Ageing, 2018
Population ageing, which has come about through the combination of increases in life expectancy, larger post-war cohorts reaching older age and reductions in fertility, is challenging societies and particularly health and care providers, worldwide. In Europe, the USA and Japan, there have been increases in years spent with disability and dependency ...
Peter G Gore   +4 more
openaire   +4 more sources

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