Results 131 to 140 of about 1,622,378 (238)

Time Resolved DNA Barcodes for Information Encoding and Dynamic Encryption

Advanced Science, EarlyView.
This study establishes a molecular information platform based on DNA Temporal Barcodes. Information is encoded through combinations of DNA tags with distinct retention times, while dynamic encryption is achieved through a key‐triggered DNA ligation.
Likang Chu, Haixia Wang, Haiyan Gao, Sixian Chen, Zilong Li, Zhanyihao Hao, Lei He, Da Han   +7 more
wiley   +1 more source

Aerial reconfigurable intelligent surfaces-assisted full-duplex UAV secure communication

Dianxin kexue
In response to the limitations of traditional reconfigurable intelligent surfaces (RIS) in UAV-assisted secure communications, such as insufficient flexibility and inadequate system security, as well as the challenges of low spectral efficiency and poor ...
LUO Junsong, HUANG Ping, LUO Xinyue, LAI Huan, DUO Bin, YUAN Xiaojun   +5 more
doaj   +2 more sources

Secrecy energy efficiency maximization in dual-metasurface-aided wireless networks

EURASIP Journal on Advances in Signal Processing
This paper investigates the robust secure energy efficiency (SEE) maximization problem in a multiple-input single-output communication system enhanced by two reconfigurable metasurfaces in the presence of a single passive eavesdropper. One metasurface is
Robert Kuku Fotock, Agbotiname Lucky Imoize, Alessio Zappone, Ciro D’Elia   +3 more
doaj   +1 more source

Mechanical Flexibility Enables DNA Origami to Overcome Steric Confinement in Mucus

Advanced Science, EarlyView.
Mechanical flexibility is introduced as a design parameter to enhance nanocarrier transport in mucus. Using DNA origami, flexibility is decoupled from size, shap and surface chemistry, revealing improved passage through confined hydrogel networks. While surface passivation reduces aggregation, flexibility further boosts transport, offering a general ...
Matteo Tollemeto, Emily Tsang, Marie Karen Tracy Hong Lin, Luca Mannino, Kurt V. Gothelf, Anja Boisen   +5 more
wiley   +1 more source

An Efficient Ray-Based Modeling Approach for Scattering From Reconfigurable Intelligent Surfaces

IEEE Transactions on Antennas and Propagation
Reconfigurable intelligent surfaces (RISs), which can be implemented using metasurface technology or reflect/ transmit antenna array technology, have garnered significant attention in research studies focused on both their technological aspects and ...
E. Vitucci, M. Albani, Silvi Kodra, M. Barbiroli, V. Degli-Esposti   +4 more
semanticscholar   +1 more source

Controlled Peptide Capture and Release in 3D‐Printed Multimaterial Microstructures

Advanced Science, EarlyView.
Two‐photon laser printing of 3D microstructures using a peptide‐containing ink is shown. The microstructures allow for controlled capture and release of target peptides through coiled‐coil interaction with the printed peptide inside the material. Based on these properties, orthogonal capture and stimuli‐mediated release possibilities inside printed ...
Niklas Schwegler, Thomas Heim, Philipp Mainik, Eva Blasco, Franziska Thomas   +4 more
wiley   +1 more source

Optimal Placement of Reconfigurable Intelligent Surfaces (RIS) for Wireless Systems

, 2022
Reconfigurable Intelligent Surfaces (RIS) have been proposed to reconfigure the wireless propagation environment and enhance transmission performance. A RIS is made of passive reconfigurable elements and can vary the phase and amplitude of the incident ...
Abalroos, Mohammed
core  

Bio‐Inspired Bidirectional Winding Origami With Programmable Modular Reconfigurability and Scalability

Advanced Science, EarlyView.
A bio‐inspired bidirectional‐winding origami platform enables scalable and programmable deployable structures. Double axial folding inspired by earwig hindwings and Flasher‐based hybridization create modular multilayer architectures with diverse attainable winding angles under fixed boundary conditions.
Wenyao Zhang, Chunlong Wang, Mingli Liu, Chuang Shi, Hongwei Guo, Rongqiang Liu   +5 more
wiley   +1 more source

Coordinated Reconfigurable Intelligent Surfaces: Non-Diagonal Group-Connected Design

IEEE Transactions on Vehicular Technology
Reconfigurable intelligent surfaces (RIS) constitute a promising technology for future wireless communications in terms of improving the spectral-efficiency and energy-efficiency.
Qing-Chao Li, M. el-Hajjar, Ibrahim A. Hemadeh, Arman Shojaeifard, L. Hanzo   +4 more
semanticscholar   +1 more source

From Folding Mechanics to Robotic Function: A Unified Modeling Framework for Compliant Origami

Advanced Science, EarlyView.
A geometry‐consistent DDG framework captures compliant origami deformation from rigid‐like folding to soft panel bending. By tuning crease and panel stiffness, bistable snap‐through responses transform into smooth monostable deformation, enabling programmable stability and robot‐scale locomotion.
Bohan Zhang, Bo Wang, Huajiang Ouyang, Zhigang Wu, Haohao Bi, Jiawei Xu, Mingchao Liu, Weicheng Huang   +7 more
wiley   +1 more source