Results 31 to 40 of about 3,985 (273)
Remote Sensing, 2022 At present, 5G base stations are densely distributed in major cities based on improving user concentrations and the large demand for services in urban hotspot areas.
Kai Yang +7 more
doaj +1 more source
A Two-Way Split-Step Wavelet Scheme for Tropospheric Long-Range Propagation in Various Environments
Remote Sensing, 2022 In the context of improving the dimensioning of observation and telecommunication, the characterization of the propagation canal is very important. Thus, accurate models of propagation phenomenona in their environment and above a rough surface (maritime ...
Thomas Bonnafont +2 more
doaj +1 more source
The impact of inlet flow conditions on the aerodynamic performance of a NACA submerged intake for ground vehicle applications [PDF]
, 2013 Results are presented following a series of experimental measurements on a submerged NACA type intake orientated between ±30 degrees yaw to the free stream in an atmospheric boundary layer wind tunnel at a unit Reynolds number of nominally 1 x 106.
Garry, Kevin P., Holt, Jennifer C.
core +1 more source
Ducting Approach to Atmospheric Sound Propagation [PDF]
The Journal of the Acoustical Society of America, 1969 The velocity profile V=V0/1+Az+Bz2)12 is investigated for nonfocus situations. When A is negative, sound rays are refracted back to the ground and are reflected. When A is positive, sound rays are refracted away from the ground and a shadow zone is formed.
openaire +1 more source
Atmosphere, 2016 In this paper, we present a new estimation of the atmospheric refractivity profile combining the scattering signal (electromagnetic wave propagation loss) and the direct signal (phase delay). The refractivity profile is modeled using four parameters, i.e.
Qixiang Liao, Zheng Sheng, Hanqing Shi
doaj +1 more source
Multiscale Decomposition Prediction of Propagation Loss in Oceanic Tropospheric Ducts
Remote Sensing, 2021 The oceanic tropospheric duct is a structure with an abnormal atmospheric refractive index. This structure severely affects the remote sensing detection capability of electromagnetic systems designed for an environment with normal atmospheric refraction.
Mingxia Dang +6 more
doaj +1 more source
Aquaporin‐3 and aquaporin‐5 impact the development of pancreatic ductal adenocarcinoma spheroids
FEBS Open Bio, EarlyView.Schematic representation of the role of aquaporin‐3 (AQP3) and aquaporin‐5 (AQP5) in pancreatic ductal adenocarcinoma (PDAC). Both proteins are upregulated in PDAC and are associated with tumor progression and metastatic potential. Silencing AQP3 or AQP5 in PDAC spheroids results in decreased diameter, area, and overall growth, underscoring their key ...
Catarina Pimpão +3 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.This work introduces a microsphere‐templated strategy to fabricate reprocessable PEDOT:PSS syntactic foams with tunable porosity, stable conductivity, and 3D printability. In situ PEDOT:PSS coatings create a conductive network that maintains electrical performance at high void fractions.
Gayaneh Petrossian +7 more
wiley +1 more source
Advanced Materials, EarlyView.Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz +11 more
wiley +1 more source
Validation of Atmospheric Ducts Inversion Using Automatic Identification System Signals at Sea
IET Microwaves, Antennas & PropagationIn order to verify the feasibility of atmospheric duct inversion method using automatic identification system signal in the actual sea area, a sea experiment was carried out.
Wenlong Tang +3 more
doaj +1 more source