Results 91 to 100 of about 1,208,570 (249)

Porcupine‐Quill‐Inspired Shape‐Morphing Biointerfaces Disassemble Biofilms

Advanced Science, EarlyView.
A porcupine‐spine‐inspired dynamic offensive bio‐interface is developed for active biofilm disassembly. By coupling electrically driven nano‐dagger penetration with light‐triggered ROS generation, the surface overcomes the passive limitations of conventional mechano‐bactericidal topographies, achieving near‐complete biofilm eradication, strong ...
Feng Qian, Muqiu Xia, Ziyu Wang, Xinyuan Jia, Jinke Yin, Mengyu Fu, Xue Zhang, Xiao‐Lei Shi, Shiqiang Chen, Ning Wang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Metasurface‐Based Multidimensional Light‐Field Manipulation: From Technologies to Applications

Advanced Science, EarlyView.
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Heliang Yin, Shuo Sun, Jiahao Zhang, Jianuo Hu, Yubin Qiao, Liang Chen, Jin Li   +6 more
wiley   +1 more source

Interface‐Confined Cavitation at an MXene/TiO2 Schottky Heterointerface for Non‐Thermal Juice Preservation

Advanced Science, EarlyView.
This work establishes an MXene/TiO2 Schottky heterointerface for non‐thermal sonocatalysis. Interface‐confined cavitation and dynamic Ti3+/V₀ shuttles drive charge transport and reactive oxygen species (ROS) generation. The platform achieves 3‐log pathogen reduction while retaining heat‐labile nutrients in complex food matrices, redefining sonocatalyst
Xiaoge Wu, Yunxiao Zhu, Nan Qin, Zhaoli Zhang, Qi Zhang, Yang Tao   +5 more
wiley   +1 more source

Starlink-Based Passive Radar for Earth's Surface Imaging: First Experimental Results

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
New satellite constellations for broadband Internet service emerge as promising illuminators of opportunity for the of passive radar (PR) applications.
Pedro Gomez-del-Hoyo, Piotr Samczynski
doaj   +1 more source

Retrieval of Effective Correlation Length and Snow Water Equivalent from Radar and Passive Microwave Measurements

Remote Sensing, 2018
Current methods for retrieving SWE (snow water equivalent) from space rely on passive microwave sensors. Observations are limited by poor spatial resolution, ambiguities related to separation of snow microstructural properties from the total snow mass ...
Juha Lemmetyinen, Chris Derksen, Helmut Rott, Giovanni Macelloni, Josh King, Martin Schneebeli, Andreas Wiesmann, Leena Leppänen, Anna Kontu, Jouni Pulliainen   +9 more
doaj   +1 more source

A General and Efficient Framework for the Rapid Design of Miniaturized, Wideband, and High‐Bit RIS

Advanced Electronic Materials, EarlyView.
A general and efficient framework is proposed for the rapid design of high‐performance reconfigurable intelligent surfaces (RISs). This framework integrates advanced antenna design techniques and incorporates various load types, quantities, and values to achieve the design of high‐performance RISs.
Jun Wei Zhang, Zheng Xing Wang, Wanwan Cao, Zhen Jie Qi, Li Jie Wu, Han Qing Yang, Qun Yan Zhou, Si Ran Wang, Hui Dong Li, Jun Yan Dai, Jiang Luo, Jun Wei Wu, Jia Nan Zhang, Zhen Zhang, Qiang Cheng   +14 more
wiley   +1 more source

An Improved Method of FM Radio Channel Selection for a Passive Radar System Based on Signal Environment Analysis

IEEE Access
This study proposes an improved method of frequency modulation (FM) radio channel selection for a passive radar system based on signal environment analysis.
Inhwan Jeong, Sanhae Kim, Hyungyu Kwak, Jonghwan Lee, Kyuha Song   +4 more
doaj   +1 more source

Passive radar processing with quantised signals

, 2013
A recent study suggested that passive radar processing could be performed adequately using data which had been digitised using fewer bits per sample than are typical of an analogue–to–digital converter (ADC).
James Palmer, Palmer, J., Searle, S., Stephen Searle   +3 more
core   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source