Results 101 to 110 of about 6,415,065 (280)

Active radar cross section reduction : Theory and applications

, 2015
This book discusses the active and passive radar cross section (RCS) estimation and techniques to examine the low observable aerospace platforms. It begins with the fundamentals of RCS, followed by the dielectric, magnetic and metamaterials parameters of
Jha, RM, Hema, Singh
core  

Superstrate-based patch antenna array with reduced in-band radar cross section

, 2021
To design a low radar cross section (RCS) antenna, the major concern is not only to reduce scattering, but also to maintain its radiation parameters, viz. gain, voltage standing wave ratio (VSWR), etc.
Singh, A, Vyshnavi Das, SK, Singh, Hema, Gurap, AA   +3 more
core   +1 more source

Machine Learning‐Driven Design of Multicomponent Bone Inorganic Matrix Mimicking Scaffolds for Osteogenesis Enhanced by Neurogenesis

Advanced Science, EarlyView.
Schematic illustration of development of experimental datasets and algorithm models, screening and preparation of the scaffolds and their applications in vivo. ABSTRACT Bone defects require materials with osteogenic, neurogenic, and angiogenic activity, yet designing such materials within high‐dimensional compositional spaces remains challenging. Here,
Kunlu Lin, Ying Yang, Chuyao Zhou, Hanyue Mao, Zhiquan Zhang, Libangxi Liu, Xiaoying Yu, Haoming Liu, Long Liu, Xiaoyan Wang   +9 more
wiley   +1 more source

Coastal wind retrievals from corrected QuikSCAT Normalized Radar Cross Sections

Remote Sensing of Environment
A new correction scheme named “noise regularization”, aiming at mitigating land contamination in SeaWinds scatterometer coastal Normalized Radar Cross Sections (s) is presented. The scheme is based on an analytical Cumulative Distribution Function (CDF) matching technique.
Giuseppe Grieco, Marcos Portabella, Ad Stoffelen, Anton Verhoef, Jur Vogelzang, Andrea Zanchetta, Stefano Zecchetto   +6 more
openaire   +2 more sources

An Innervated Human Skin Equivalent that Electrically Encodes Mechanical and Thermal Stimuli

Advanced Science, EarlyView.
An innervated human skin equivalent is integrated with high‐density microelectrode arrays to reveal how engineered free nerve ending–like structures translate touch and temperature into electrical codes. Mechanical indentation and thermal stimulation engage the engineered somatosensory circuitry and evoke distinct firing and waveform signatures ...
Daniele Bellantoni, Costantino Casale, Marika Sperduti, Nevio L. Tagliamonte, Giorgia Imparato, Loredana Zollo, Paolo A. Netti   +6 more
wiley   +1 more source

Electronic Chip‐Mimetic Medical Implants for Controllable Sonothermal Treatments

Advanced Science, EarlyView.
Inspired by the thermal effect of working electronic chips, which consist of various heterostructures, an sonothermal‐responsive platform has been developed through constructing metal‐semiconductor interface on implants. Biofilm infection and deep vein thrombosis can be successfully treated by controllable ultrasound treatments.
Zhengdong Zhang, Pan Liu, Jie Lei, Shuchang Peng, Qiu Chen, Wei Guan, Yizhou Zhu, Gang Liu, Xiaobo Feng, Cao Yang, Lei Tan   +10 more
wiley   +1 more source

Detecting Coastal Aggregation of Macroplastic Litter Using Satellite X-Band SAR Imagery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This study summarizes the lessons learned during the July 2024 experimental campaign, where targets, consisting of floating plastic and natural debris, were jointly observed in a South Italy lake by drone and satellite instruments.
Ferdinando Nunziata, Nicola Angelo Famiglietti, Anna Verlanti, Andrea Buono, Antonino Memmolo, Luigi di Michele, Annamaria Vicari, Alessandro Fanti, Maurizio Migliaccio   +8 more
doaj   +1 more source

Modulation of Tidal Channel Signatures on SAR Images Over Gyeonggi Bay in Relation to Environmental Factors

Remote Sensing, 2018
In this study, variations of radar backscatter features of the tidal channel in Gyeonggi Bay in the Eastern Yellow Sea were investigated using spaceborne synthetic aperture radar (SAR) images.
Tae-Sung Kim, Kyung-Ae Park, Moonjin Lee
doaj   +1 more source

Effect of Faraday Rotation on L-Band Ocean Normalized Radar Cross Section and Wind Speed Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Observational evidence that L -band backscatter measurements are distorted by Faraday rotation (FR) is presented using match-ups consisting of the phased-array type L -band synthetic aperture radar-2 (PALSAR-2) data, scatterometer winds, and FR estimated from total electron contents (TEC) and magnetic fields. Investigating these data reveals that the
Osamu Isoguchi, Kenta Ishizuka, Takeo Tadono, Takeshi Motohka, Masanobu Shimada   +4 more
openaire   +2 more sources

Topology‐Enabled Finite‐Band Absorption Framework Based on a Bioinspired Nested Dual‐Loop Architecture

Advanced Science, EarlyView.
A nuclear‐pore‐inspired nested dual‐loop architecture redistributes electromagnetic energy through coupled transport, confinement, and dissipation pathways. Integrated with Co/Fe3O4 dual‐magnetic composites and topology optimization, the 11‐mm‐thick absorber delivers continuous 2–40 GHz attenuation, raises finite‐band structural utilization to 82%, and
Shaokang Liu, Weicheng Liao, Pinchen Luo, Mengchen Jin, Tangming Yan, Xing Zhao, Qingshan Wang   +6 more
wiley   +1 more source