Results 41 to 50 of about 17,599,864 (236)
A weak scattering model for tone haystacking
, 2009 The scattering of sound by turbulence in a jet shear layer is considered. Spectral broadening or 'haystacking' is the process whereby the turbulent, time-varying inhomogeneities in the flow scatter tonal sound fields, which decreasesthe level of the ...
Tester, B.J., McAlpine, A., Powles, C.J.
core +2 more sources
Earth and Planetary PhysicsMars is the terrestrial planet in the solar system that is closest to the Earth. Studying the atmospheric parameters of Mars and studying the evolutionary history of the Martian environment on this basis is helpful for people to discover signs of ...
KeXin Ming +4 more
doaj +1 more source
A Model of Sound Scattering by Atmospheric Turbulence for Use in Noise Mapping Calculations [PDF]
Acta Acustica united with Acustica, 2014 Sound scattering due to atmospheric turbulence limits the noise reduction in shielded areas. An engineering model is presented, aimed to predict the scattered level for general noise mapping purposes including sound propagation between urban canyons. Energy based single scattering for homogeneous and isotropic turbulence following the Kolmogorov model ...
Forssén, Jens +5 more
openaire +3 more sources
TROPOSCATTER COMMUNICATION LINK MODEL BASED ON RAY-TRACING
Information and Telecommunication Sciences, 2018 Background. At present, the demand in tropospheric over-the-horizon communication systems determines the inherent advantages of these systems over satellite and radio-relay systems of direct visibility, especially in combat and emergency situations ...
Mykhailo Ilchenko +3 more
doaj +1 more source
Dust and fog image-sharpening algorithm based on atmospheric scattering model in coal face
Meitan xuebao, 2023 A large number of suspended particles such as dust and water fog is produced in the process of coal mining, which leads to the degradation of images such as low illumination, high dust concentration, and uneven fog distribution.
Meng ZHAO +5 more
doaj +1 more source
FEBS Letters, EarlyView.Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley +1 more source
Aerosol scattering effects on water vapor retrievals over the Los Angeles Basin [PDF]
Atmospheric Chemistry and Physics, 2017 In this study, we propose a novel approach to describe the scattering effects of atmospheric aerosols in a complex urban environment using water vapor (H2O) slant column measurements in the near infrared.
Z.-C. Zeng +11 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
Color-Dense Illumination Adjustment Network for Removing Haze and Smoke from Fire Scenario Images
Sensors, 2022 The atmospheric particles and aerosols from burning usually cause visual artifacts in single images captured from fire scenarios. Most existing haze removal methods exploit the atmospheric scattering model (ASM) for visual enhancement, which inevitably ...
Chuansheng Wang +5 more
doaj +1 more source
Triton: Scattering models and surface/atmosphere constraints
Geophysical Research Letters, 1989 Modeling of Triton's spectrum indicates a bright scattering layer of optical depth τ ≃ 3 overlying an optically deep layer of CH4 with high absorption and little scattering. UV absorption in the spectrum indicates τ ≃ 0.3 of red‐yellow haze, although some color may also arise from complex organics partially visible on the surface.
openaire +1 more source