Results 51 to 60 of about 21,957 (303)

A new approach to the treatment of Separatrix Chaos and its applications [PDF]

, 2010
We consider time-periodically perturbed 1D Hamiltonian systems possessing one or more separatrices. If the perturbation is weak, then the separatrix chaos is most developed when the perturbation frequency lies in the logarithmically small or moderate ...
P. V. E. McClintock, Khovanov, I. A., S. M. Soskin, I. A. Khovanov, Soskin, Stanislav M., McClintock, P. V. E., Mannella, R., Yevtushenko, O. M., O. M. Yevtushenko, Soskin, S. M., R. Mannella   +10 more
core   +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

Medical image encryption using multi chaotic maps

, 2023
Over the last twenty years, chaos-based encryption has been an increasingly popular way to encrypt and decrypt data using nonlinear dynamics and deterministic chaos.
Khodher, Maisa’a Abid Ali; University of Technology, Hussain, Abbas Zamil; University Of Technology   +1 more
core   +2 more sources

Chaotic behavior in the H�non mapping

Communications in Mathematical Physics, 1979
In a previous work Henon investigated a two-dimensional difference equation which was motivated by a hydrodynamical system of Lorenz. Numerically solving this equation indicated for certain parameter values the existence of a “strange attractor”, i.e., a region in the plane which attracts bounded solutions and in which solutions wander erratically.
openaire   +3 more sources

Intelligent Maintenance Review for Robots: Multimodal Information, Deep Diagnosis and Embodied Artificial Intelligence

Advanced Robotics Research, EarlyView.
This review maps the methods to monitor robots’ health by fusing vibration, sound, control signals, vision, force, and oil information with artificial intelligence. It identifies deep learning, transfer learning, digital twins, and physics‐informed models as key methodological pathways enabling earlier diagnosis, safer human–robot collaboration, and ...
Yuting Qiao, Hongbo Wang, Naipeng Li, Shuo Wang, Yaguo Lei, Tonghai Wu, Junyi Cao   +6 more
wiley   +1 more source

A compression sensing and noise-tolerant image encryption scheme based on chaotic maps and orthogonal matrices

, 2016
With the evolution of technologies, the size of an image data has been significantly increased. However, traditional image encryption schemes cannot handle the emerging problems in big data such as noise toleration and compression. In order to meet today’
Khan, Jan Sher, Khan, Muazzam A., Hwang, Seong Oun, Ahmad, Jawad   +3 more
core   +1 more source

Chromosomal Instability Drives Glioblastoma Heterogeneity and Therapeutic Opportunities

Advanced Science, EarlyView.
ABSTRACT Glioblastoma, the most aggressive and lethal form of brain cancer, is defined by profound genomic instability, with Chromosomal Instability (CIN) playing a central role in driving tumor progression, therapy resistance, and poor prognosis. CIN is characterized by numerical and structural alterations, is driven by mechanisms such as mitotic ...
Amarnath Pal, Milan Patra, Rianita Mondal, Shubhasis Haldar   +3 more
wiley   +1 more source

Microcontroller-based Random Number Generator Implementation by Using Discrete Chaotic Maps

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
In recent decades, chaos theory has been used in different engineering applications of different disciplines. Discrete chaotic maps can be used in encryption applications for digital applications.
Serdar Çiçek
doaj   +1 more source

Implementation of a secure digital chaotic communication scheme on a DSP board

, 2010
In this paper, a new a secure communication scheme using chaotic signal for transmitting binary digital signals is proposed and which is then implemented on a Digital Signal Processor (DSP) board.
Ghassemlooy, Zabih, Woihida Aggoune, Z. Ghassemlooy, Busawon, Krishna, Aggoune, Woihida, Krishna Busawon, Rupak Kharel, Kharel, Rupak   +7 more
core   +1 more source

Unraveling the Molecular Mechanisms Underlying Spontaneous Multipolar Mitosis Through CIN‐seq

Advanced Science, EarlyView.
Multipolar mitosis, a hallmark of chromosomal instability (CIN), drives tumor heterogeneity but is challenging to study in live cells. Using CIN‐seq, a single‐cell multiomics method, we profiled rare CIN events and identified mechanisms associated with viable multipolar mitosis, including PTEN attenuation, Rho GTPase‐driven cytokinesis failure, and ...
Pin‐Rui Su, Ting‐Chun Chou, Maria Teresa López‐Cascales, Junfeng Huang, Tsai‐Ying Chen, Sjoukje van Wieren, Chan Li, Cecile Beerens, Li You, Jelle Storteboom, Miao‐Ping Chien   +10 more
wiley   +1 more source