Results 51 to 60 of about 34,527 (227)

Bistatic and Stereoscopic Configurations for HF Radar

Remote Sensing, 2020
Most HF radars operate in a monostatic or quasi-monostatic configuration. The collocation of transmit and receive facilities simplifies testing and maintenance, reduces demands on communications networks, and enables the use of established and relatively
Stuart Anderson
doaj   +1 more source

The CALYPSO HF Radar Data Interface

, 2013
Within the ambit of the CALYPSO project, a network of HF-radars with installations on the northern coast of the Maltese Islands, and on the southern Sicilian coast is intended to provide real-time sea surface currents in the Malta Channel. This paper describes the web interface developed to provide users with viewing, selection and downloading of the ...
Tarasova, Raisa, Gauci, Adam, Drago, Aldo, Azzopardi, Joel   +3 more
openaire   +2 more sources

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

Alternating High‐Fat and Polysaccharide Diets Modulates Gut Phage‐Bacterial Interplay

Advanced Science, EarlyView.
This study reveals how alternating high‐fat and polysaccharide diets reshape the human gut virome and enhance phage‐bacteria interactions. Using large‐scale metagenomic meta‐analysis and a time‐resolved mouse model, the authors show that diets strongly modulate phage abundance, lifestyle, and gene exchange, offering new insights into nutrition‐guided ...
Fengxiang Zhao, Ruiqi Zhang, Rujun Wei, Huimin Fan, Yongfei Hu, Wenyu Shi, Jinfeng Wang   +6 more
wiley   +1 more source

HF Radar Measurements of Surface Waves in the Gulf of Naples (Southeastern Tyrrhenian Sea): Comparison With Hindcast Results at Different Scales

Frontiers in Marine Science, 2020
HF radar systems wave measurements are evaluated against numerical simulations in the Gulf of Naples (Southeastern Tyrrhenian Sea). Wave measurements are obtained from three CODAR SeaSonde HF radars installed along the coast of the Gulf of Naples.
Simona Saviano, Simona Saviano, Francesco De Leo, Giovanni Besio, Enrico Zambianchi, Enrico Zambianchi, Enrico Zambianchi, Marco Uttieri, Marco Uttieri   +8 more
doaj   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Extraction of the significant wave height from synthetic HF radar data acquired on a floating platform

IET Radar, Sonar & Navigation, 2023
The usual procedure for extracting ocean surface information from data acquired from a high‐frequency surface wave radar transmitting from a floating platform is to first compensate for the motion of the antenna in the acquired motion‐contaminated ...
Sepideh Hashemi, Reza Shahidi, Eric W. Gill   +2 more
doaj   +1 more source

Simultaneous quasi-periodic optical and HF radar signatures observed in the postnoon sector [PDF]

, 2000
Zhongshan Station in Antarctica is located close to the polar cusp/cleft latitude. The field of view of the Syowa East HF radar also covers Zhongshan Station. Simultaneous quasi-periodic phenomena of optical aurora, HF radar backscatter power and Doppler
A. David M. Walker, Akira Sessai Yukimatu, Hisao Yamagishi, Huigen Yang, Kazuo Makita, Masayuki Kikuchi, Natsuo Sato, Ruiyuan Liu, Tadahiko Ogawa, Yozo Murata   +9 more
core   +1 more source

Emerging Memory and Device Technologies for Hardware‐Accelerated Model Training and Inference

Advanced Electronic Materials, EarlyView.
This review investigates the suitability of various emerging memory technologies as compute‐in‐memory hardware for artificial intelligence (AI) applications. Distinct requirements for training‐ and inference‐centric computing are discussed, spanning device physics, materials, and system integration.
Yoonho Cho, Dae‐won Kim, Yujin Kim, Jung‐Heum Na, Yuwon Jeong, Dong‐Yeop Lee, Shinhyun Choi   +6 more
wiley   +1 more source

Inversion of HF Radar Doppler Spectra Using a Neural Network

Journal of Marine Science and Engineering, 2019
For a number of decades, coastal HF radar has been used to remotely measure ocean surface parameters, including waves, at distances exceeding 100 km. The information, which has value in many ocean engineering applications, is obtained using the HF radar ...
Rachael L. Hardman, Lucy R. Wyatt
doaj   +1 more source