Results 61 to 70 of about 196,667 (285)

Light‐Induced Entropy for Secure Vision

Advanced Materials, EarlyView.
This work realized a ternary true random number generator by exploiting stochastic traps emerging within multiple junction interfaces, and quantitatively validated the generation of high‐quality random numbers. Furthermore, it successfully demonstrated diverse applications, including AI‐resilient image security, thereby providing a valuable guide for ...
Juhyung Seo, Seungme Kang, Chaehyun Kim, Taehyun Park, Youngwoo Yoo, Yeong Kwon Kim, Wonjun Shin, Byung Chul Jang, Young‐Joon Kim, Hocheon Yoo   +9 more
wiley   +1 more source

Clustering stock market companies via chaotic map synchronization

, 2004
A pairwise clustering approach is applied to the analysis of the Dow Jones index companies, in order to identify similar temporal behavior of the traded stock prices. To this end, the chaotic map clustering algorithm is used, where a map is associated to
Basalto, N., Bellotti, R., De Carlo, F., Facchi, P., Pascazio, S.   +4 more
core   +1 more source

Winding Numbers in Discrete Dynamics: From Circle Maps and Fractals to Chaotic Poincaré Sections

Modelling
Winding numbers are key indices in the depiction, modelling, and testing of dynamical processes. They capture phase progression on closed curves and are robust for quasiperiodic dynamics, but their status for chaotic Poincaré sections is unclear.
Zhengyuan Zhang, Liming Dai, Na Jia
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Semiclassical properties and chaos degree for the quantum baker's map [PDF]

, 2001
We study the chaotic behaviour and the quantum-classical correspondence for the baker's map. Correspondence between quantum and classical expectation values is investigated and it is numerically shown that it is lost at the logarithmic timescale.
Arefeva I. Y., Balazs N. L., Berman G. P., Brun T., da Luz M. G. E., Emch G. G., Hannay J. H., Hasegawa H., Igor V. Volovich, Inoue K., Kaplan L., Kei Inoue, Lakshminarayan A., Lakshminarayan A., Masanori Ohya, Ohya M., Ozorio de Almeida A. M., O’Connor P. W., Saraceno M., Schack R., Schack R., Schack R.   +21 more
core   +2 more sources

Identification of chaos in fractional chaotic map

Advances in Difference Equations, 2020
This paper utilizes the 0–1 test algorithm to identify chaos in a fractional chaotic map. A fractional Burgers map is proposed by means of the Caputo-like delta difference operator. The bifurcation diagrams, phase trajectories and 0–1 test results of the
Jie Ran
doaj   +1 more source

Encrypting Multiple Images With an Enhanced Chaotic Map

IEEE Access, 2022
A multiple-image encryption scheme based on an enhanced chaotic map is proposed. This scheme combines multiple grayscale images into three planes. An amplified sine map is used to generate a dynamic permutation table and a chaotic sequence.
Dolendro Singh Laiphrakpam, Rohit Thingbaijam, Khoirom Motilal Singh, Moatsum Al Awida   +3 more
doaj   +1 more source

Tunable 3D‐Printed Static Mixers for Gradient Bioprinting With High Cell Viability

Advanced Materials Technologies, EarlyView.
ABSTRACT The fabrication of native tissue‐like structures with gradual transitions in material properties, cell types, and growth factors remains a major challenge in biofabrication due to the lack of suitable methods. Mimicking the hierarchical organization of living tissues is essential for functional models, yet creating gradient, multimaterial ...
Florian Hofmann, Jessica Faber, Franz Moser, Alessandro Cianciosi, Nicoletta Murenu, Joachim Schenk, Katrin G. Heinze, Natascha Schaefer, Silvia Budday, Tomasz Jungst   +9 more
wiley   +1 more source

On the Emergence of Nonextensivity at the Edge of Quantum Chaos

, 2003
We explore the border between regular and chaotic quantum dynamics, characterized by a power law decrease in the overlap between a state evolved under chaotic dynamics and the same state evolved under a slightly perturbed dynamics.
Lloyd, Seth, Tsallis, Constantino, Weinstein, Yaakov S.   +2 more
core   +2 more sources

A novel image encryption/decryption scheme based on integrating multiple chaotic maps

AIP Advances, 2020
In this paper, a novel framework is presented for chaotic image encryption. The proposed method is based on integrating multiple chaotic maps (e.g., logistic, tent, quadratic, cubic, and Bernoulli) to generate more robust chaotic maps in order to ...
Bedir Yousif, Fahmi Khalifa, Ahmed Makram, Ali Takieldeen   +3 more
doaj   +1 more source