Results 1 to 10 of about 3,406,012 (295)
Photon-pair generation in a lossy waveguide [PDF]
Nanophotonics, 2023 An on-chip quantum light source based on spontaneous four-wave mixing is an essential element for developing quantum photonic integrated circuit technology, which has the advantage of no connection loss owing to the integration of the source into ...
Shin Woncheol +5 more
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Loss of Bin1 Promotes the Propagation of Tau Pathology [PDF]
Cell Reports, 2016 Tau pathology propagates within synaptically connected neuronal circuits, but the underlying mechanisms are unclear. BIN1-amphiphysin2 is the second most prevalent genetic risk factor for late-onset Alzheimer’s disease.
Sara Calafate +3 more
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Geodesic Path Model for Indoor Propagation Loss Prediction of Narrowband Channels [PDF]
Sensors, 2022 Brecht de Beelde +2 more
exaly +2 more sources
Novel model for propagation loss prediction in tunnels [PDF]
IEEE Transactions on Vehicular Technology, 2003 Radio signal propagation in a tunnel exhibits distinct near and far regions with quite different propagation characteristics. This paper proposes a model that can distinguish these propagation regions and predict their respective propagation losses in the tunnel.
exaly +4 more sources
Journal of Marine Science and Engineering, 2022 A tropospheric duct (TD) is an anomalous atmospheric refraction structure in marine environments that seriously interferes with the propagation path and range of electromagnetic (EM) waves, resulting in serious influence on the normal operation of radar.
Hanjie Ji +5 more
doaj +1 more source
Experimental Demonstration of Germanium-on-Silicon Slot Waveguides at Mid-Infrared Wavelength
IEEE Photonics Journal, 2022 We first demonstrated a slot waveguide based on a Ge-on-Si (GOS) platform with a 3 μm thickness of the Ge in the mid-infrared wavelength range at 4.2 μm.
Jinha Lim +3 more
doaj +1 more source
Simple VHF and UHF Propagation Loss model
IEEE Communications Letters, 2023 In this letter, we present a mathematical characterization of the Federal Communication Commission (FCC) F(50,50) curve for the Very High Frequency (VHF) and the Ultra High Frequency (UHF) band. The proposed empirical model is based on a novel step-wise curve fitting the FCC signal strength data.
Thaisa Jawhly, Ramesh Chandra Tiwari
openaire +1 more source
Experimental Analysis of Atmospheric Ducts and Navigation Radar Over-the-Horizon Detection
Remote Sensing, 2022 Since the height of sea detection radar antenna and ship targets is relatively low, it is generally believed that its over-the-horizon detection is mainly caused by the evaporation duct at sea.
Li-Feng Huang +7 more
doaj +1 more source
Array Gain of a Linear Array in an Ocean Waveguide
Applied Sciences, 2021 Array gain is investigated based on the acoustic channel characteristics manifested by the fluctuant transmission loss and decrease in the acoustic channel spatial coherence.
Zong-Wei Liu +5 more
doaj +1 more source
Remote Sensing, 2023 The propagation of electromagnetic waves beyond the line of sight can be caused by atmospheric ducts, which are significant concerns in the fields of radar and communication.
Ning Yang, Debin Su, Tao Wang
doaj +1 more source