Results 41 to 50 of about 2,362,034 (304)
Air contamination with SARS-CoV-2 in the operating room [PDF]
Journal of Anesthesia, 2020 Angiotensin converting enzyme 2 (ACE2) is a target cell receptor for internalization and proliferation of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). When ACE2-highly expressed tissues are manipulated, SARS-CoV-2 containing aerosols may be generated.
openaire +2 more sources
Fast and viewpoint robust human detection for SAR operations [PDF]
2014 IEEE International Symposium on Safety, Security, and Rescue Robotics (2014), 2014 There are many advantages in using UAVs for search and rescue operations. However, detecting people from a UAV remains a challenge: the embedded detector has to be fast enough and viewpoint robust to detect people in a flexible manner from aerial views.
Paul Blondel +3 more
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Spaceborne Reflector SAR Systems with Digital Beamforming [PDF]
, 2012 Spaceborne Synthetic Aperture Radar (SAR) imaging enters an era where increasingly short revisit times, or large swath widths, respectively, and high spatial resolutions are requested.
Patyuchenko, Anton +4 more
core +1 more source
, 2011 Matter of discussion in this Ph. D. thesis is SAR (Synthetic Aperture Radar) image denoising. Main elements of innovation are the introduction of SAR-BM3D, a denoising algorithm optimized for SAR data, and the introduction of a benchmark which enables ...
Poderico, Mariana
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Sensor-Oriented Path Planning for Multiregion Surveillance with a Single Lightweight UAV SAR
Sensors, 2018 In the surveillance of interested regions by unmanned aerial vehicle (UAV), system performance relies greatly on the motion control strategy of the UAV and the operation characteristics of the onboard sensors. This paper investigates the 2D path planning
Jincheng Li +3 more
doaj +1 more source
Digital Beamforming and MIMO SAR: Review and New Concepts [PDF]
, 2012 Spaceborne Synthetic Aperture Radar (SAR) is a unique tool for large scale Earth observation, but the current generation of SAR sensors suffers from some fundamental limitations with regard to their imaging and mapping capabilities.
Villano, Michelangelo +10 more
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Liver organoids: modelling complexity in homeostasis and disease
FEBS Letters, EarlyView.Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley +1 more source
Focusing Bistatic FMCW SAR Signal by Range Migration Algorithm Based on Fresnel Approximation
Sensors, 2015 Frequency modulated continuous wave (FMCW) technique has recently been employed by synthetic aperture radar (SAR) to decrease the radar cost and volume. However, the operation range is limited by the direct energy leakage from the transmitting channel to
Yake Li, Siu O’Young
doaj +1 more source
Operational Oil-Slick Characterization by SAR Imagery and Synergistic Data [PDF]
IEEE Journal of Oceanic Engineering, 2005 A methodology is proposed for the semiautomatic detection, characterization, and classification of slicks detected in C-band Synthetic Aperture Radar (SAR). For the first detection step, automatic algorithms were tested on Environmental Research Satellite (ERS) and Environmental Satellite (EnviSat) images acquired during the Prestige tanker accident ...
Girard-ardhuin, Fanny +3 more
openaire +2 more sources
Precipitation Induced Signatures in SAR Images [PDF]
, 2009 Active microwave SAR imaging of the Earth’s surface is commonly considered to be of all weather capability. However, as the operating frequencies of SAR-systems are increasing, visible image distortions due to heavy precipitation in SAR-images are ...
Chandra, Madhu, Danklmayer, Andreas
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