Results 91 to 100 of about 2,301,868 (306)
An Image Encryption Scheme Based on Hyperchaotic Rabinovich and Exponential Chaos Maps
Entropy, 2015 This paper proposes a new four-dimensional hyperchaotic map based on the Rabinovich system to realize chaotic encryption in higher dimension and improve the security.
Xiaojun Tong +4 more
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, 2008 We consider a family of singular maps as an example of a simple model of dynamical systems exhibiting the property of robust chaos on a well defined range of parameters. Critical boundaries separating the region of robust chaos from the region where stable fixed points exist are calculated on the parameter space of the system.
Cosenza, M. G., Alvarez-LLamoza, O.
openaire +2 more sources
Advanced Science, EarlyView.Plant‐based nanomaterials derived from alfalfa serve as dual‐function catalysts, coupling photodegradation and phytoremediation to degrade polyethylene under UV‐A light and in soil. The nanomaterials work synergistically with alfalfa and soil microbes, achieving efficient plastic breakdown without trophic transfer.
Haoran Liu +4 more
wiley +1 more source
Advanced Science, EarlyView.A conformal ALD‐IGZO vertical RRAM integrates volatile and nonvolatile switching within a compact 2F architecture. Before forming, tunable volatile dynamics provide fading‐memory reservoir states, while after forming, stable multilevel conductance modulation enables hardware readout.
Seeun Lee +6 more
wiley +1 more source
Advanced Science, EarlyView.Vision begins not with images but with change: the retina fires only when something moves, handing the brain a stream of spikes. A neuromorphic imaging system adopts the same strategy—an event sensor that sees like the retina, a spiking network that thinks like the brain—to track and reconstruct fully randomly moving targets through tissue (phantom ...
Ning Zhang, Arto Nurmikko
wiley +1 more source
Chaotic behavior of the fractional cubic map
四川大学学报. 自然科学版In this paper， the chaotic characteristics of fractional cubic map are investigated.Firstly， the fractional differential equation with piecewise constant elements is defined based on the cubic map， the fractional cubic map is obtained by using the ...
GAO Shi-Long, YU Wen-Hui
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Neuromorphic Devices and Computing for Sensing, Memory, and Control
Advanced Science, EarlyView.This review introduces neuromorphic devices made from diverse materials. These devices mimic neuronal functions and architectures and, when integrated with artificial or biological computing, can form closed loops with neurons for pressure, optical, acoustic, and biochemical sensing and modulation.
Zhengguang Zhu +2 more
wiley +1 more source
Concurrent compression and meaningful encryption of images using chaotic compressive sensing
Frontiers in Computer ScienceThe presented research introduces a new approach to simultaneously compressing and encrypting images using chaotic compressive sensing. This technique involves transforming the image into sparser data using the discrete cosine transform basis, which is ...
K. Ashwini +3 more
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Advanced Science, EarlyView.MetaboSense is a first‐of‐its‐kind microfluidic platform enabling continuous, in‐line monitoring of glucose and lactate during ex vivo lung perfusion. Combining a quantum dot–mediated aptamer assay with mixing, depletion, and optofluidic detection modules, it achieves 60–s temporal resolution and shows strong agreement with standard blood gas analyzers,
Sanjana Srikant +14 more
wiley +1 more source
Chaotic Hénon–Logistic Map Integration: A Powerful Approach for Safeguarding Digital Images
Journal of Cybersecurity and PrivacyThis paper presents an integrated chaos-based algorithm for image encryption that combines the chaotic Hénon map and chaotic logistic map (CLM) to enhance the security of digital image communication. The proposed method leverages chaos theory to generate
Abeer Al-Hyari +3 more
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