Results 61 to 70 of about 16,428 (260)

Unveiling robust security: Chaotic maps for frequency hopping implementation in FPGA

Ain Shams Engineering Journal
Frequency hopping is a main technique for wireless communication, avoiding interference and interception. This paper provides novel hardware design for frequency-hopping pseudorandom bit generator (PRBG).PRBG design by chaotic maps on FPGA.Two proposed ...
Harith G.Ayoub, Zaid A.Abdulrazzaq, Ahmed F.Fathil, Shahd A.Hasso, Aamer T.Suhail   +4 more
doaj   +1 more source

Chaos based multiple order optical transform for 2D image encryption

Engineering Science and Technology, an International Journal, 2020
In this paper, a robust yet simple and efficient method is proposed for a 2D image encryption. The purpose of this work is to plug the gap related to blind decryption and lack of randomness in optical transform domain which limits its application in ...
Gurpreet Kaur, Rekha Agarwal, Vinod Patidar   +2 more
doaj   +1 more source

Multi‐Organelle Stress‐Induced Paraptosis by a ROS‐Amplifying Nanocatalyst for Enhanced Cancer Immunotherapy

Advanced Science, EarlyView.
The engineered TF‐Fe@LC nanoplatform programs paraptotic death via multipath ROS amplification that disrupts redox homeostasis, provoking mitochondrial dysfunction, autophagic blockade, and ER stress. This caspase‐independent process elicits robust immunogenic cell death, combining with αPD‐L1 to activate systemic CD8+ T‐cell immunity and suppress ...
Zhe Yu, Haozhe Ren, Hua Li, Jinghan Zhao, Miaomiao Cao, Tian Tang, Youbei Qiao, Liting Chen, Tiehong Yang, Hong Wu   +9 more
wiley   +1 more source

SpatialESD: Spatial Ensemble Domain Detection in Spatial Transcriptomics

Advanced Science, EarlyView.
ABSTRACT Spatial transcriptomics (ST) measures gene expression while preserving spatial context within tissues. One of the key tasks in ST analysis is spatial domain detection, which remains challenging due to the complex structure of ST data and the varying performance of individual clustering methods. To address this, we propose SpatialESD, a Spatial
Hongyan Cao, Gaiqin Liu, Jingyi Xia, Runle Chen, Tong Wang, Xiaoling Yang, Ruiling Fang, Yanhong Luo, Ping Zeng, Hongmei Yu, Yanbo Zhang, Yuehua Cui   +11 more
wiley   +1 more source

Chemically Engineered L. reuteri Delivering αPD‐L1 and Gallium Ions via Metal‐Phenolic Networks Potentiate Anti‐Tumor Immunity and Ferroptosis

Advanced Science, EarlyView.
A multifaceted chemical strategy, integrating bacterial tropism, metal‐ion interference therapy, and immunotherapy, resulted in significant tumor regression in murine models. A pioneering paradigm for the design of biohybrid materials was established, highlighting how sophisticated chemical engineering of living systems can unlock new avenues for ...
Tingting Zhang, Mengyi Xu, Yan Zhang, Zhiwen Li, Danqing Song, Jing Pang, Ke Li, Yanxiang Wang   +7 more
wiley   +1 more source

Constructing Multi-Branches Complete Chaotic Maps That Preserve Specified Invariant Density

Discrete Dynamics in Nature and Society, 2009
A general formulation for multi-branches complete chaotic maps that preserve a specified invariant density is provided and an implication relationship among this class of maps is revealed.
Weihong Huang
doaj   +1 more source

Kinesin‐Induced Buckling Reveals the Limits of Microtubule Self‐Repair

Advanced Science, EarlyView.
This study shows that kinesin‐driven buckling induces extensive microtubule lattice damage that often exceeds intrinsic self‐repair and leads to filament failure. While curvature, motor motility, and force individually cause limited damage, their combination overwhelms repair.
Shweta Nandakumar, Jonas Bosche, Mirko Wieczorek, Constantin Matteo Albrecht, Belinda König, Mona Grünewald, Ludger Santen, Stefan Diez, Reza Shaebani, Laura Schaedel   +9 more
wiley   +1 more source

Testing the Strength of Chaotic Systems as Seeds in a Pseudo Random Bit Generator

IEEE Access
Chaotic random bit generators have become an integral part of chaotic cryptography and other data protection applications, where they are used as sources of deterministic randomness, to secure an information signal.
Lazaros Moysis, Marcin Lawnik, Christos Volos, Murilo S. Baptista, Sotirios K. Goudos, George F. Fragulis   +5 more
doaj   +1 more source

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

Vapor‐Assisted Catalysis Enables Precise Construction of MOF‐Derived Hierarchical Carbon Nanoarrays for High‐Performance Supercapacitors

Advanced Science, EarlyView.
A remote‐control strategy for catalyst design is unveiled for advanced carbon materials. During pyrolysis, zinc vapor from a physically separate source guides cobalt catalysts to construct a hierarchical carbon nanoarray. This approach prevents structural collapse while directing the dense growth of carbon nanotubes, yielding a material with ...
Xiaoyang Deng, Zihao Wan, Huan Xin, Xiaoguang Wang, Wenjuan Wang, Feixiong Chen, Liying Ma, Naiqin Zhao   +7 more
wiley   +1 more source