Results 71 to 80 of about 20,649 (261)

A Simple Normalized Difference Approach to Burnt Area Mapping Using Multi-Polarisation C-Band SAR

Remote Sensing, 2017
In fire-prone ecosystems, periodic fires are vital for ecosystem functioning. Fire managers seek to promote the optimal fire regime by managing fire season and frequency requiring detailed information on the extent and date of previous burns.
Jeanine Engelbrecht, Andre Theron, Lufuno Vhengani, Jaco Kemp   +3 more
doaj   +1 more source

Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications

Advanced Science, EarlyView.
Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li, Henghui Deng, Shiwei Yu, Jiawei Huang, Zehong Chen, Dawei Zhao, Chaoqun Zhang   +6 more
wiley   +1 more source

Distribution of Hepatitis C Virus Genotypes in Canada: Results from the LCDC Sentinel Health Unit Surveillance System

Canadian Journal of Infectious Diseases, 1999
In a sentinel hepatitis surveillance study conducted by sentinel health units, 1469 patients were enrolled, and 959 (65.3%) were positive for antibody to hepatitis C virus (HCV).
RK Chaudhary, M Tepper, S Eisaadany, Paul R Gully   +3 more
doaj   +1 more source

Improved Direct Ink Writing of Liquid Metal Foams via Liquid Additives

Advanced Electronic Materials, EarlyView.
The ability to pattern liquid metal is useful for making soft electrical and thermal devices. Dispensing liquid metal from a nozzle naturally results in the formation of spheroidal droplets, making direct‐write printing challenging. Liquid metal foams containing pockets of air can extrude as filaments, albeit inconsistently.
Febby Krisnadi, Tushar Sakorikar, Man Hou Vong, Michael D. Dickey   +3 more
wiley   +1 more source

Investigating the Recent Surge in the Monomah Glacier, Central Kunlun Mountain Range with Multiple Sources of Remote Sensing Data

Remote Sensing, 2020
Several glaciers in the Bukatage Massif are surge-type. However, previous studies in this region focused on glacier area and length changes, and more information is needed to support the deep analysis of glacier surge.
Lei Guo, Jia Li, Lixin Wu, Zhiwei Li, Yanyang Liu, Xin Li, Zelang Miao, Wei Wang   +7 more
doaj   +1 more source

Validation of Sentinel-1A SAR Coastal Wind Speeds Against Scanning LiDAR

Remote Sensing, 2017
High-accuracy wind data for coastal regions is needed today, e.g., for the assessment of wind resources. Synthetic Aperture Radar (SAR) is the only satellite borne sensor that has enough resolution to resolve wind speeds closer than 10 km to shore but the Geophysical Model Functions (GMF) used for SAR wind retrieval are not fully validated here. Ground
Tobias Ahsbahs, Merete Badger, Ioanna Karagali, Xiaoli Guo Larsén   +3 more
openaire   +1 more source

Dielectric Elastomer Actuators as Safe and Effective Tools for Mechanostimulation of Human Cells

Advanced Intelligent Systems, EarlyView.
Replicating physiological forces is crucial for realistic cell models. Dielectric elastomer actuators (DEAs) offer a soft alternative, though their high voltages raised toxicity concerns. We demonstrate that DEA stimulation causes no cell damage, cell death or cell‐cycle disruption, while activating mechanosensitive responses.
Simon Holzer, Chaimae Bahou, Noe Syfrig, Katia Monastyrskaya, Yoan Civet, Ali Hashemi Gheinani, Yves Perriard   +6 more
wiley   +1 more source

Monitoring and Analysis of Surface Deformation in Mining Area Based on LuTan-1 and Sentinel-1A Data

Remote Sensing
High-intensity mining activities in coal mining areas have produced large-gradient surface deformation, posing severe challenges to deformation monitoring using Interferometric Synthetic Aperture Radar (InSAR) techniques based on C-band Synthetic ...
Zisu Cheng, Meinan Zheng, Qingbiao Guo, Yingchun Wang, Jinchao Li, Xiang Zhang   +5 more
doaj   +1 more source

Hyperacute Interleukin‐1β Production and Neutrophil Extracellular Trap Formation in the Cerebral Circulation of Stroke Patients with Large Vessel Occlusion

Annals of Neurology, EarlyView.
Acute ischemic stroke due to large vessel occlusion is associated with rapid intravascular immune activation. Analysis of arterial blood sampled distal to the thrombus during mechanical thrombectomy revealed increased extracellular adenosine triphosphate (ATP) and interleukin‐1β (IL‐1β) levels, evidence of inflammasome priming in monocytes, and ...
Justine Münsterberg, Caspar Brekenfeld, Hanna Englert, Marius Piepke, Regine J. Dress, Martin Oertel, Tina Fischer, Romy Hackbusch, Mingming Zha, Haodi Cai, Christian Casar, Ines S. Schädlich, Leo Winter, Alina Jander, Karoline Degenhardt, Maxim Bester, Fabian Flottmann, Uta Hanning, Brigitte Holst, Anna Worthman, Johanna Hiefner, Berenike Rutz, Eckhard Schlemm, Götz Thomalla, Bettina H. Clausen, Ann M. Stowe, Immo Prinz, Thiruma V. Arumugam, Markus Glatzel, Thomas Renné, Jens Fiehler, Eva Tolosa, Tim Magnus, Mathias Gelderblom   +33 more
wiley   +1 more source

Monitoring Desertification in Biskra, Algeria Using Landsat 8 and Sentinel-1A Images

IEEE Access, 2018
[EN] Desertification is the persistent degradation of ecosystems caused by environmental changes and human activities. This is a global problem closely related to climate change with severe consequences in urban locations. For that reason, monitoring those locations with low cost and freely available satellite images could be useful for local agencies.
Soufiane Abdelaziz Azzouzi, Ana Vidal-Pantaleoni, Hadj Adda Bentounes   +2 more
openaire   +3 more sources