Results 51 to 60 of about 1,777,518 (275)

Numerical study on signatures of atmospheric convective cells in radar images of the ocean

, 1999
Current and wind variations at the ocean surface can give rise to a modulation of the sea surface roughness and thus become visible in radar images. The discrimination between radar signatures of oceanic and atmospheric phenomena can be quite difficult ...
Susanne Ufermann, Ufermann, S., Roland Romeiser, Romeiser, Roland, Ufermann, Susanne, Romeiser, R.   +5 more
core   +2 more sources

A New Method of Rainfall Detection from the Collected X-Band Marine Radar Images

Remote Sensing, 2022
To control the quality of X-band marine radar images for retrieving information and improve the inversion accuracy, the research on rainfall detection from marine radar images is investigated in this paper.
Yanbo Wei, Yalin Liu, Yifei Lei, Ruiyao Lian, Zhizhong Lu, Lei Sun   +5 more
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

An efficient cylindrical coordinate subgrid parabolic equation model for predicting the power distribution and coverage of radar signals in a complex multi‐scale marine environment

Electronics Letters, 2021
An efficient cylindrical coordinate subgrid parabolic equation model is proposed to predict the power distribution and coverage of radar signals in a complex multi‐scale marine environment.
Xiaochuan Deng, C. Liao, Dongmin Zhang, Feng Ju, Yuping Shang, Haijing Zhou   +5 more
doaj   +1 more source

Molecular Landscapes of Tumor Dormancy in Gynecologic Malignancies: From Survival Mechanisms to Precision Interception

Advanced Science, EarlyView.
This Review outlines the biological framework of entry, maintenance, and awakening in dormant minimal residual disease across gynecologic cancers. By mapping critical biological dependencies—from metabolic plasticity to microenvironment interactions—it evaluates novel interception concepts and presents a translational framework combining single‐cell ...
Shih‐Hsuan Cheng, Ren‐Wang Peng, Chang‐Cheng Wu, Chi‐Wen Luo, Emmanuel Naveen Raj, Zhi‐Hong Wen, Tzu‐Hung Hsiao, Chia‐Jung Li   +7 more
wiley   +1 more source

Simulation and analysis system of sea echo based on MATLAB

The Journal of Engineering, 2019
Marine radar is mainly used for maritime navigation and avoidance of collision. Shore-based marine radar is used for offshore vessel management. In the marine environment, the radar echo is complex for the targets which are polytypic and undulant, and ...
Yan Fengjun, Sun Xinzhe
doaj   +1 more source

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

Investigating the Backscatter of Marine Plastic Litter Using a C- and X-Band Ground Radar, during a Measurement Campaign in Deltares

Remote Sensing, 2023
In recent years, marine plastic pollution has seen increased coverage in the public interest and research due to a greater understanding of the scale and impact of plastic pollution within the marine environment. Considering the hazard that plastic waste
Morgan David Simpson, Armando Marino, Peter de Maagt, Erio Gandini, Anton de Fockert, Peter Hunter, Evangelos Spyrakos, Trevor Telfer, Andrew Tyler   +8 more
doaj   +1 more source

Technology Transfer to Underwater Archaeology: The LAHKE Project at the Submerged Neolithic Site of La Marmotta

Archaeological Prospection, EarlyView.
ABSTRACT This document is a report on the field application of non‐invasive geophysical and robotic prospecting methods at the submerged Neolithic site of La Marmotta (Lake Bracciano, Italy), within the LAHKE (LAke Heritage Knowledge and Exploration) project; the study focuses on the practical validation, adaptation and transfer of existing ...
dell' Erba Ramiro, Cupertino Giacomo, Cipollini Angelo, Luciano Blasi, Quattrucci Luca   +4 more
wiley   +1 more source

Clutter Suppression and Marine Target Detection for Radar Images Based on INet

Leida xuebao, 2020
A marine radar device is a major navigation tool for boaters and ships. The images produced by marine radars detect not only hard targets such as ships and coastlines, but also reflections from the sea surface, known as sea clutter.
Xiaoqian MOU, Xiaolong CHEN, Jian GUAN, Wei ZHOU, Ningbo LIU, Yunlong DONG   +5 more
doaj   +1 more source