Results 31 to 40 of about 32,670 (315)

Characterization of the Amazon Rainforest Backscatter at X-Band Using TanDEM-X Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The radiometric calibration of spaceborne SAR products plays a key role for ensuring a good performance of the whole end-to-end system and requires a precise knowledge of both the radar system and the illuminated target on ground.
Luca Dell'Amore, Jose-Luis Bueso-Bello, Patrick Klenk, Jens Reimann, Paola Rizzoli   +4 more
doaj   +1 more source

Hierarchical Bayesian Data Analysis in Radiometric SAR System Calibration: A Case Study on Transponder Calibration with RADARSAT-2 Data

Remote Sensing, 2013
A synthetic aperture radar (SAR) system requires external absolute calibration so that radiometric measurements can be exploited in numerous scientific and commercial applications.
Björn J. Döring, Kersten Schmidt, Matthias Jirousek, Daniel Rudolf, Jens Reimann, Sebastian Raab, John Walter Antony, Marco Schwerdt   +7 more
doaj   +1 more source

Fracture toughness of phenol formaldehyde composites post-cured in microwaves

, 2007
A commercial phenol formaldehyde based resole thermosetting resin supplied by Borden Chemical Australia Pty. was filled with ceramic-based fillers (Envirospheres “SLG”) to increase its fracture toughness.
Pattarachaiyakoop, N., Trada, M., Ku, H., Rogers, D., Cardona, F.   +4 more
core   +1 more source

Range-Doppler Based CFAR Ship Detection with Automatic Training Data Selection

Remote Sensing, 2019
Ship detection is an essential maritime security requirement. Current state-of-the-art synthetic aperture radar (SAR) based ship detection methods employ fully focused images.
Sushil Kumar Joshi, Stefan V. Baumgartner, Andre B. C. da Silva, Gerhard Krieger   +3 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Geometric Accuracy of Sentinel-1A and 1B Derived from SAR Raw Data with GPS Surveyed Corner Reflector Positions

Remote Sensing, 2018
The geometric accuracy of synthetic aperture radar (SAR) data is usually derived from level-1 products using accurately surveyed corner reflector positions.
Kersten Schmidt, Jens Reimann, Núria Tous Ramon, Marco Schwerdt   +3 more
doaj   +1 more source

3D Printed Hemispherically Radiating Antenna for Broadband Millimeter Wave Applications

IEEE Open Journal of Antennas and Propagation, 2023
Nowadays, additive manufacturing provides far-reaching possibilities for use in radio frequency components. In addition to almost unlimited freedom of design as compared to conventional manufacturing, the absence of further assembly steps is a key aspect
Lukas Engel, Danti Khouri, Konstantin Lomakin, Andreas Hofmann, Micha Kleinlein, Ingrid Ullmann, Martin Vossiek, Gerald Gold   +7 more
doaj   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

Molecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh, Nitzan Medina‐Itzhaki, Milena Chekov, Eden Gal‐Swisa, Roba Gabesh‐Wahabi, Inbar Savyon, Inna Naroditsky, Hilary A. Kenny, Basem Fares, Lina Korsensky, Einav Girsh, Liron Berger, Ruth Perets   +12 more
wiley   +1 more source

Storage and on-demand release of microwaves using superconducting resonators with tunable coupling

, 2014
We present a system which allows to tune the coupling between a superconducting resonator and a transmission line. This storage resonator is addressed through a second, coupling resonator, which is frequency-tunable and controlled by a magnetic flux ...
Johansson, Göran,, Delsing, Per, Mathieu Pierre, Sathyamoorthy, Sankar Raman,, Johansson, G\uf6ran, Pierre, Mathieu,, Pierre, Mathieu, Göran Johansson, Per Delsing, Sankar Raman Sathyamoorthy, Delsing, Per,, Ida-Maria Svensson, Sathyamoorthy, Sankar Raman, Svensson, Ida-Maria, Svensson, Ida-Maria,   +14 more
core   +1 more source

High-Resolution Forest Mapping from TanDEM-X Interferometric Data Exploiting Nonlocal Filtering

Remote Sensing, 2018
In this paper, we discuss the potential and limitations of high-resolution single-pass interferometric synthetic aperture radar (InSAR) data for forest mapping.
Michele Martone, Francescopaolo Sica, Carolina González, José-Luis Bueso-Bello, Paolo Valdo, Paola Rizzoli   +5 more
doaj   +1 more source