Results 61 to 70 of about 7,122,692 (304)

Photo‐Switchable Molecular Module Programming PET Biodegradation in Aquatic Environments

open access: yesAdvanced Functional Materials, EarlyView.
We address the plastic durability paradox by integrating an itaconic acid–derived pyrrolidone module into polymer backbones. Sunlight in water triggers Norrish Type I ring‐opening and hydrophilization, enabling rapid biodegradation into nontoxic minerals.
Mohammad Asif Ali   +16 more
wiley   +1 more source

Estimation of Dual Polarization Weather Radar Variables

open access: yesAl-Mustansiriyah Journal of Science, 2018
Dual polarization weather radar has now become a widely used as instrument in meteorological offices around the world because of its capability in distinguishing different precipitation type and in improving the accuracy of quantitative precipitation ...
Dalia A. Mahmood
doaj   +1 more source

Studying the Applicability of X-Band SAR Data to the Network-Scale Mapping of Pavement Roughness on US Roads

open access: yesRemote Sensing, 2020
The traveling public judges the quality of a road mostly by its roughness and/or ride quality. Hence, mapping, monitoring, and maintaining adequate pavement smoothness is of high importance to State Departments of Transportation in the US.
Franz J. Meyer   +2 more
doaj   +1 more source

Potential of forest height estimation using X band by means of two different inversion scenarios [PDF]

open access: yes, 2007
Polarimetric SAR Interferometry (Pol-InSAR) is a powerful remote sensing method for forest height estimation by using the random volume over ground model (RVoG).
Hajnsek, Irena   +3 more
core  

Dynamic Observation of Lacy Pattern Formation in a Bone Tissue Model Using Liquid Phase Scanning Transmission Electron Microscopy

open access: yesAdvanced Functional Materials, EarlyView.
Here, we establish a low‐dose liquid‐phase electron microscopy workflow for real‐time observation of biological processes in hydrated conditions. Beam damage is reduced by imaging only 20% of the pixels and reconstructing the complete image using an inpainting algorithm.
Luco Rutten   +7 more
wiley   +1 more source

Study of Ocean Waves Measured by Collocated HH and VV Polarized X-Band Marine Radars

open access: yesInternational Journal of Antennas and Propagation, 2016
The significant wave height (SWH) retrieved from collocated HH and VV polarized X-band marine radars under different sea states is studied. The SWH are retrieved from different principal components of X-band marine radar image sequence.
Zhongbiao Chen, Yijun He, Wankang Yang
doaj   +1 more source

Polarimetric X-band weather radar measurements in the tropics: radome and rain attenuation correction [PDF]

open access: yesAtmospheric Measurement Techniques, 2012
A polarimetric X-band radar has been deployed during one month (April 2011) for a field campaign in Fortaleza, Brazil, together with three additional laser disdrometers.
M. Schneebeli   +7 more
doaj   +1 more source

Electrospun Core–Shell Bioadhesive Nanofiber Sheets Enable Durable Pulmonary Air Leak Sealing Under Wet and Dynamic Conditions

open access: yesAdvanced Healthcare Materials, EarlyView.
A core–shell electrospun nanofiber sheet provides strong adhesion and durable sealing on the wet and dynamic lung surface. The engineered fibrous architecture maintains airtight integrity and offers a potential alternative to fibrin sealants for pulmonary air leak management in thoracic surgery.
Tomohito Okubo   +10 more
wiley   +1 more source

Application of S-band and X-band Dual Polarization Radar for Quantitative Precipitation Estimation in Shijiazhuang

open access: yesGaoyuan qixiang
Based on the observation data of Shijiazhuang S-band radar and X-band radar, along with information from raindrop spectrometer and ground rain gauge data, this investigation analyzes four quantitative precipitation estimation methods: R(ZH), R(ZH, ZDR ...
Zhaochu HUANG   +7 more
doaj   +1 more source

A Single-Layer S/X- Band Shared Aperture Antenna with MIMO Characteristics at X-Band for Airborne Synthetic Aperture Radar Applications

open access: yesInternational Journal of Antennas and Propagation, 2023
New frequencies can be supported with very effective space use by using the shared aperture antenna This work presents on designing a dual-banddual-polarized (DBDP) S/X-band shared aperture antenna (SAA) for synthetic aperture radar (SAR) applications ...
Raja Babu Bandi   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy