Results 31 to 40 of about 286,691 (306)

A Software-Defined Channel Sounder for Industrial Environments with Fast Time Variance [PDF]

open access: yes, 2018
Novel industrial wireless applications require wideband, real-time channel characterization due to complex multipath propagation. Rapid machine motion leads to fast time variance of the channel's reflective behavior, which must be captured for radio ...
Block, Dimitri   +2 more
core   +3 more sources

Determining Wind Shear Threshold by Using Historical Sounding Data in Experimental Area

open access: yesAtmosphere
This paper conducts a technical study on a method for determining the occurrence threshold of wind shear based on historical sounding data. After analyzing the impact of low-altitude wind shear on aircraft flight safety, a method for determining the ...
Tingting Shu   +5 more
doaj   +1 more source

Lidar diagnostics of ionosphere precipitations

open access: yesE3S Web of Conferences, 2018
Lidar is considered as an electron energy detector of ionosphere precipitations, and the cleaning of radiation belts is like the energy pumping of the ionosphere layer.
Shevtsov Boris   +2 more
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Changes of geoacoustic emission directivity at «Mikizha» site associated with earthquakes in Kamchatka

open access: yesE3S Web of Conferences, 2016
To investigate high frequency geoacoustic emission, a receiving system based on a compound vector receiver was installed in Kamchatka. It allows the authors to determine the direction of sound wave arrival.
Marapulets Yuriy   +2 more
doaj   +1 more source

Experimental Study on Shortwave Communication and OTHR Integrated System Based on OFDM Waveform

open access: yesLeida xuebao, 2012
Based on the recently developed active-passive multifunctional all-digital HF surface wave radar hardware platform of Wuhan University, an experiment study of integrated technology for shortwave communication and Over-The-Horizon Radar (OTHR) application
Shao Qi-hong   +4 more
doaj   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

open access: yesFEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman   +2 more
wiley   +1 more source

An Improved Split-Step Wavelet Transform Method for Anomalous Radio Wave Propagation Modelling [PDF]

open access: yes, 2014
Anomalous tropospheric propagation caused by ducting phenomenon is a major problem in wireless communication. Thus, it is important to study the behavior of radio wave propagation in tropospheric ducts.
Iqbal, A., Jeoti, V.
core   +1 more source

On the mean profiles of radio pulsars II: Reconstruction of complex pulsar light-curves and other new propagation effects

open access: yes, 2017
Our previous paper outlined the general aspects of the theory of radio light curve and polarization formation for pulsars. We predicted the one-to-one correspondence between the tilt of the linear polarization position angle of the and the circular ...
Beskin, Vasily   +2 more
core   +1 more source

Experimental study of on-body radio channel performance of a compact ultra wideband antenna [PDF]

open access: yes, 2015
In this paper, on-body radio channel performance of a compact ultra wideband (UWB) antenna is investigated for body-centric wireless communications.
Abbasi, Qammer H.   +3 more
core   +1 more source

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