Results 11 to 20 of about 951,850 (217)

E‐band InAs quantum dot laser on InGaAs metamorphic buffer layer with filter layer

open access: yesElectronics Letters, 2021
InAs quantum dots (QDs) are receiving attention as next‐generation E‐band light source that offers high‐temperature operation and temperature insensitive operation.
J. Kwoen, W. Zhan, Y. Arakawa
doaj   +1 more source

Multi-Band Array Antenna Sharing a Common Aperture with Heterogeneous Array Elements

open access: yesApplied Sciences, 2022
This paper proposes a multi-band array antenna that shares a common aperture with heterogenous array elements. The multi-band array antenna includes one printed dipole antenna for the S-band and 3 × 3 array E-shaped patch antennas for the X-band.
Sungsik Wang   +3 more
doaj   +1 more source

Large Scale Spectral Splitting Concentrator Photovoltaic System Based on Double Flat Waveguides

open access: yesEnergies, 2020
In this research, we present a novel design for a large scale spectral splitting concentrator photovoltaic system based on double flat waveguides. The sunlight concentrator consists of a Fresnel lens array and double waveguides.
Ngoc Hai Vu   +2 more
doaj   +1 more source

Improved SR-SSIM Band Selection Method Based on Band Subspace Partition

open access: yesRemote Sensing, 2023
Scholars have performed much research on reducing the redundancy of hyperspectral data. As a measure of the similarity between hyperspectral bands, structural similarity is used in band selection methods.
Tingrui Hu   +3 more
doaj   +1 more source

Projected hydrological changes in the North Carolina piedmont using bias-corrected North American Regional Climate Change Assessment Program (NARCCAP) data

open access: yesJournal of Hydrology: Regional Studies, 2017
Study region: The Haw River basin in the North Carolina Piedmont. Study focus: Simulation of hydrologic change by projected CO2 and climate using the Soil and Water Assessment Tool (SWAT) hydrologic model. Biases of climate output from the North American
Yuri Kim   +2 more
doaj   +1 more source

Statistical Analysis of Rain at Millimeter Waves in Tropical Area

open access: yesIEEE Access, 2020
The high frequencies of millimeter wave (mm-wave) bands have been recognized for the fifth generation (5G) and beyond wireless communication networks.
Ahmed M. Al-Saman   +4 more
doaj   +1 more source

Retrieving Water Vapor From an E‐Band Microwave Link With an Empirical Model Not Requiring In Situ Calibration

open access: yesEarth and Space Science, 2021
An empirical model estimating water vapor density from the attenuation of electromagnetic waves at E‐band frequencies is proposed and tested on seven months of 5‐min attenuation observations from a 4.87‐km‐long full‐duplex E‐band commercial microwave ...
Martin Fencl   +2 more
doaj   +1 more source

Carrier distribution in multi-band materials and its effect on thermoelectric properties

open access: yesJournal of Materiomics, 2016
Band convergence is one of the most interesting topics in recent studies of thermoelectrics. However, its effect on thermoelectric properties is only simply stated as improving band degeneracy.
Jun Mao, Weishu Liu, Zhifeng Ren
doaj   +1 more source

Water Vapor Retrieval Using Commercial Microwave Links Based on the LSTM Network

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, a water vapor density inversion model based on the long short-term memory network is proposed for E-band commercial microwave links (CMLs).
Kang Pu   +3 more
doaj   +1 more source

A 3D-Printed Encapsulated Dual Wide-Band Dielectric Resonator Antenna With Beam Switching Capability

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
This paper presents the concept of encapsulated dielectric resonator antennas (E-DRAs). In E-DRAs, smaller-sized DRAs with a specific permittivity is embedded inside a larger DRA with a lower permittivity allowing for simultaneous efficient radiation at ...
Reza Shamsaee Malfajani   +5 more
doaj   +1 more source

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