Results 41 to 50 of about 220,305 (309)

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

Flexible Chemiresistive Chitosan‐Glycerol Sensors on Laser‐Induced Graphene Electrodes for Room‐Temperature Ammonia Detection

Advanced Materials Technologies, EarlyView.
Flexible Chitosan‐glycerol sensor integrated with porous laser‐induced graphene (LIG) electrodes enable room‐temperature chemiresistive detection of ammonia (NH3) and proof‐of‐concept detection of fish spoilage. ABSTRACT We report a metal‐free sensor platform combining laser induced graphene (LIG) electrodes with drop‐deposited, glycerol‐plasticized ...
Mintesinot Tamiru Mengistu, Richard Murray, Cara‐Lena Nies, Cathal Larrigy, Martina Piletti, Jahidul Islam, Daniela Iacopino, Eileen Hurley, Michael Nolan, Aidan J. Quinn   +9 more
wiley   +1 more source

Analysis of Radar Cross Section Reduction of Fighter Aircraft by Means of Computer Simulation

Journal of Aerospace Technology and Management, 2014
This paper presents a preliminary study of the Radar Cross Section (RCS) reduction on the fighter aircraft. First, it was studied the RCS of the aircraft from computational simulations based on prior knowledge of vulnerable areas of this aircraft to ...
Luan Silva Carvalho dos Santos, Luiz Alberto de Andrade, Adriana Medeiros Gama   +2 more
doaj  

3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics

Advanced Materials Technologies, EarlyView.
A 3D‐printable porous dopamine‐polyurethane acrylate elastomer results in conductive, stretchable, and compressible structures that can be metallized in situ through catechol‐mediated silver reduction. The resulting material function as both compliant soft robot with a and strain sensors without complex assemblies, enabling fully 3D‐printed soft ...
Ouriel Bliah, Konstantin Sakharov, Pooi See Lee, Shlomo Magdassi   +3 more
wiley   +1 more source

Estimation of Radar Cross Section of a Target under Track

EURASIP Journal on Advances in Signal Processing, 2010
In allocating radar beam for tracking a target, it is attempted to maintain the signal-to-noise ratio (SNR) of signal returning from the illuminated target close to an optimum value for efficient track updates.
Young-Hun Jung, Sun-Mog Hong, Seung Ho Choi   +2 more
doaj   +2 more sources

Design and research of an ultra-wideband metal antenna with low radar cross section

Dianzi Jishu Yingyong, 2018
An ultra-wideband metal antenna with low radar cross section is proposed. The antenna adopts the metal Vivaldi as the radiation element, and utilizes a new-type frequency selective surface structure to reduce the radar cross section within the working ...
Zhang Qingchun, Yang Mingwu, Jiang Zhaoneng, Lu Xiaochi, Gao Sheng, Zhang Hua   +5 more
doaj   +1 more source

First Order Sea Clutter Cross Section for HF Hybrid Sky-Surface Wave Radar [PDF]

, 2014
This paper presents a modified method to simulate the first order sea clutter cross section for high frequency (HF) hybrid sky-surface wave radar, based on the existent model applied in the bistatic HF surface wave radar.
Li, Y.J., Wei, Y.S., Zhu, Y.P.
core   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

On Sea Ice/Water Discrimination by Airborne Weather Radar

IEEE Access, 2020
We consider a conceptual approach for the applicability of airborne weather radar for the sea ice/water discrimination and estimation of the sea ice age.
Alexey Nekrasov, Alena Khachaturian, Evgeny Abramov, Pavol Kurdel, Maria Gamcova, Jan Gamec, Mikhail Bogachev   +6 more
doaj   +1 more source

Enhancement of backscattering cross section from an equivalent human cylinder under oblique incidence

IET Microwaves, Antennas & Propagation, 2022
An analysis about the enhancement of backscattering radar cross section from an equivalent human body cylinder using a specific type of coating is presented.
Zeeshan A. Awan, Divitha Seetharamdoo
doaj   +1 more source