Results 21 to 30 of about 7,250 (259)
Satin Bowerbird Optimization Algorithm with Chaos [PDF]
The Satin Bowerbird Optimization (SBO) is a recently developed meta-heuristic optimization algorithm which was inspired by the Satin Bowerbirds living in Australia’s rainforests and other mesic habitats.
Tanachapong Wangkhamhan
doaj
A Class of Quadratic Polynomial Chaotic Maps and its Application in Cryptography
At present, the probability density of most chaotic systems is unknown, and the statistical characteristics of chaotic sequences cannot be described by the probability density of chaotic maps. This paper constructs a class of quadratic polynomial chaotic
Shuqin Zhu +3 more
doaj +1 more source
BER Performance Improvement of Dual Chaotic Maps Based on STBC Communication System
Sensitive information of any multimedia must be encrypted before transmission. The dual chaotic algorithm is a good option to encrypt sensitive information by using different parameters and different initial conditions for two chaotic maps.
Lwaa Faisal Abdulameer +2 more
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To overcome the drawbacks of the existing sinusoidal map and tent map, this paper proposes the design of a sinusoidal–tent (ST) map. The test results indicate that the new chaotic system exhibits more significant advantages in chaos control.
Ping-Ping Zeng +4 more
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Permutation Entropy of Weakly Noise-Affected Signals
We analyze the permutation entropy of deterministic chaotic signals affected by a weak observational noise. We investigate the scaling dependence of the entropy increase on both the noise amplitude and the window length used to encode the time series. In
Leonardo Ricci, Antonio Politi
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Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer
Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola +11 more
wiley +1 more source
Extended integer tent maps and dynamic hash function
Based on the analysis of uniform distribution property of the extended integer tent maps,a novel dynamic hash function with the output length of 160bit was constructed.In addition,the MD structure was improved so that the capacity of collision resistance
LIU Jian-dong
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A survey of tools detecting the dynamical properties of one-dimensional families
One-dimensional dynamical systems attract researches for more than half a century and the topic was inspired by many real problems. Mainly piecewise linear and polynomial maps were considered and researched under several motivations from different ...
Marek Lampart, Tomas Martinovic
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This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi +6 more
wiley +1 more source
A Novel Color Image Encryption Scheme Using Rectangular Transform-Enhanced Chaotic Tent Maps
In recent years, the chaos-based cryptographic algorithms have attracted a lot of attention. Specially, chaotic tent map (CTM)-based schemes show some good performances in randomness properties and security level.
Xiaolin Wu +3 more
doaj +1 more source

