Results 81 to 90 of about 303,375 (325)
Estimation of Equivalent Number of Looks in Time-Series Pol(In)SAR Data
Remote Sensing, 2020 As an essential parameter in synthetic aperture radar (SAR) images, the equivalent number of looks (ENL) not only indicates the speckle noise level in multi-look SAR data but also can be used for evaluating the region homogeneity level.
Peng Shen +4 more
doaj +1 more source
Noise assisted Ramsey interferometry
, 2013 I analyze a metrological strategy for improving the precision of frequency estimation via Ramsey interferometry with strings of atoms in the presence of correlated dephasing.
Dorner, U.
core +1 more source
Giant Berry‐phase‐Driven X‐Ray Beam Translations in Strain‐Engineered Semiconductor Crystals
Advanced Materials, EarlyView.Due to the Berry‐phase effect, X‐rays propagating in deformed crystals undergo large translations, interesting for X‐ray optics applications. Here, the lattice expansion observed upon H irradiation of dilute‐nitride semiconductors is exploited to engineer the deformation landscape of selectively hydrogenated GaAsN epilayers.
Marco Felici +9 more
wiley +1 more source
Adaptive DFT-Based Interferometer Fringe Tracking
EURASIP Journal on Advances in Signal Processing, 2005 An automatic interferometer fringe tracking system has been developed, implemented, and tested at the Infrared Optical Telescope Array (IOTA) Observatory at Mount Hopkins, Arizona.
Pedretti Ettore +4 more
doaj +1 more source
Ground-Based Radar Interferometry of Sea Ice
Remote Sensing, 2020 In light of recent Arctic change, there is a need to better understand sea ice dynamic processes at the floe scale to evaluate sea ice stability, deformation, and fracturing. This work investigates the use of the Gamma portable radar interferometer (GPRI)
Dyre Oliver Dammann +7 more
doaj +1 more source
Macrophages Mediate Mesoscale Brain Mechanical Homeostasis
Advanced Materials, EarlyView.We investigated the role of infiltrating immune cells in sculpting the developing brain. Using Brillouin microscopy and active microrheology, we found microglia actively maintain tissue viscoelasticity. Moreover, colony stimulating factor one receptor (CSF1R)‐driven stromal remodeling alters brain mechanics in vivo. These findings link immune activity,
Woong Young So +11 more
wiley +1 more source
Measuring Coseismic Deformation With Spaceborne Synthetic Aperture Radar: A Review
Frontiers in Earth Science, 2019 In the past 25 years, space-borne Synthetic Aperture Radar imagery has become an increasingly available data source for the study of crustal deformation associated with moderate to large earthquakes (M > 4.0).
John Peter Merryman Boncori
doaj +1 more source
Application of GNSS Interferometric Reflectometry for the Estimation of Lake Ice Thickness
Remote Sensing, 2020 Lake ice thickness is a sensitive indicator of climate change largely through its dependency on near-surface air temperature and on-ice snow mass (depth and density). Monitoring of the seasonal variations and trends in ice thickness is also important for
Yusof Ghiasi +6 more
doaj +1 more source
Advanced Materials Interfaces, EarlyView.A novel electric field‐assisted thermophoretic flame synthesis process enables rapid deposition of carbon nanoparticle films with tunable wettability. Applying a negative voltage during flame exposure accelerates growth, increases surface roughness, and alters morphology.
Raffaella Griffo +5 more
wiley +1 more source
Atmospheric Phase Compensation in Extreme Weather Conditions for Ground-Based SAR
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Herein, a semiempirical model is proposed to remove the atmospheric phase screen (APS) that occurs during ground-based synthetic aperture radar (GB-SAR) monitoring in steep mountainous areas with extreme weather conditions.
Amila Karunathilake, Motoyuki Sato
doaj +1 more source