Results 51 to 60 of about 1,457,599 (278)

Microwave Radiometer MTVZA-GY on New Russian Satellite Meteor-M No. 2-2 and Sudden Stratospheric Warming Over Antarctica

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The Meteor-M No. 2-2 meteorological satellite with the microwave radiometer MTVZA-GY on board was launched into a circular sun-synchronous orbit on July 5, 2019.
Leonid Mitnik   +5 more
doaj   +1 more source

Microwave radiation imaging using inverse synthetic aperture radar technique

open access: yesElektronika ir Elektrotechnika, 2015
Double-ridged horn antennas were used in ultra wideband radar system to create microwave radiation images. The images were obtained using inverse synthetic aperture radar technique. Transfer function of the calibrated radar system was close to one up to 22 GHz.
Steponas Ašmontas   +4 more
openaire   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

Optical Detection of Cellular Signals at Material Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren   +5 more
wiley   +1 more source

A Multi-Task Deep Learning Approach for Precipitation Retrieval from Spaceborne Microwave Imagers

open access: yesRemote Sensing
Spaceborne microwave imagers are vital for monitoring global precipitation due to their wide swath and high sensitivity. This study proposes a deep learning approach that integrates a U-Net with a multi-task learning (MTL) framework.
Xingyu Xiang   +4 more
doaj   +1 more source

Intercalibration of FY-3C MWRI Against GMI Using the Ocean Microwave Radiative Transfer Model

open access: yesIEEE Access, 2020
This work addresses the intercalibration of the Microwave Radiation Imager (MWRI) on the Chinese second-generation polar-orbiting meteorological satellite Fengyun 3C (FY-3C) against the Microwave Imager (GMI) on the Global Precipitation Measurement (GPM)
Zi-Qian Zeng, Geng-Ming Jiang
doaj   +1 more source

New thermocouple-based microwave/millimeter-wave power sensor MMIC techniques in GaAs [PDF]

open access: yes, 2010
We describe a new RF and microwave power sensor monolithic microwave integrated circuit design. The circuit incorporates a number of advances over existing designs.
Steve Cochran   +11 more
core   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Synchrotron Radiation as the Source of the Polarized Decimeter Radiation from Jupiter [PDF]

open access: yes, 1962
A Stokes parameter description is developed for synchrotron radiation from a group of ultrarelativistic electrons with any specified distribution of positions, energies and directions of motion.
Chang, David Bing Jue
core   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

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