Results 21 to 30 of about 75,278 (248)

Polarization Characteristics Simulation of Airborne Weather Radar Rainfall Target Based on Numerical Weather Prediction

open access: yesLeida xuebao, 2016
Meteorological target simulation using polarization information is the foundation of the theoretical research and design application of dual-polarization Doppler weather radar.
Liu Xia   +4 more
doaj   +1 more source

Polarization dynamics, stability and tunability of a dual-comb polarization-multiplexing ring-cavity fiber laser

open access: yesResults in Physics, 2023
In this paper, we present a polarization-multiplexed system capable of generating two stable optical frequency combs with tunable frequency differences in the range from 100 to 250 Hz and an extinction ratio of 16.5 dBm.
Alberto Rodriguez Cuevas   +3 more
doaj   +1 more source

Synchronized dual-polarity electrospray ionization mass spectrometry [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2009
This work describes the synchronized dual-polarity (DP) electrospray ionization (ESI) method and demonstrates the first DP ESI mass spectra obtained using two mass spectrometers. Stable double Taylor cones were produced by applying two counter electric voltages with opposite polarities to one electrosprayer.
Chen, Han-Kwang   +4 more
openaire   +2 more sources

Dual Gm-APD Polarization Lidar to Acquire the Depth Image of Shallow Semitransparent Media With a Wide Laser Pulse

open access: yesIEEE Photonics Journal, 2020
A polarization lidar with dual Geiger-mode avalanche photodiodes (Gm-APDs) is designed to obtain the high-precision depth image of shallow semitransparent media by using a wide laser pulse. The first surface of the semitransparent media is smooth and can
Lu Xu   +4 more
doaj   +1 more source

A Deployable Wideband Differential-Fed Dual-Polarized Patch Antenna Array

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
In this paper, a deployable wideband differential-fed dual-polarized high-isolation patch antenna array is proposed. To achieve dual polarization, every element has two pairs of differential ports.
Ankang Liu   +3 more
doaj   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

open access: yesFEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López   +2 more
wiley   +1 more source

An Efficient CSI Feedback Scheme for Dual-Polarized Massive MIMO

open access: yesIEEE Access, 2018
As an effective solution to the tradeoff between array size and the number of antenna elements, dual-polarization antenna is widely utilized in massive MIMO systems.
Feng Zheng   +6 more
doaj   +1 more source

Adaptive Dual-Polarization Filtering Method for Countering Active Jamming

open access: yesInternational Journal of Antennas and Propagation, 2020
In order to counter active jamming, an adaptive polarization filtering method based on dual polarization radar is put forward. First, the signal flow principle of the dual polarization radar and its signal model are introduced.
Qiang Zhang   +3 more
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Study on Impact of Mutual Coupling on Performance of Dual Polarized Phased Array Antenna

open access: yesAdvanced Electromagnetics, 2022
This study involves the determination of the impact of mutual coupling between antenna elements on the performance of a dual-polarized, wide-angle scanning, phased array antenna for weather radar applications.
S. Benny, S. Sahoo, A. Mukundan
doaj   +3 more sources

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