Results 11 to 20 of about 85,514 (264)
Geosciences, 2020 The terminal velocity of hailstones is an essential quantity in hail research. It is an important value for the kinetic energy of hailstones and has to be carefully considered when laboratory hail impact testing is being planned.
Christian Dieling +2 more
doaj +1 more source
Hydrodynamic Study of a Rising Bubble in the Presence of Cetyltrimethylammonium Bromide Surfactant [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2023 The performance of surfactants especially in two-phase systems, depends on their type, Hydrophile-Lipophile Balance (HLB) number, concentration, and whether the surfactant is ionic or non-ionic.
Safoora Karimi +2 more
doaj +1 more source
An investigation of engineering properties of groundnut pods and kernels related to design the post-harvest machines [PDF]
Archives of Agriculture Sciences Journal, 2021 The aim of this investigation is to study the main physical, mechanical and aerodynamic properties of groundnut pods and kernels (Giza 5 variety) at moisture content (8.2% db).
M. Hassan, M. Geasa
doaj +1 more source
High‐Velocity Rain: The Terminal Velocity Model of Galactic Infall [PDF]
The Astrophysical Journal, 1997 A model is proposed for determining the distances to falling interstellar clouds in the galactic halo by measuring the cloud velocity and column density and assuming a model for the vertical density distribution of the Galactic interstellar medium. It is shown that falling clouds with $N(H I) < \sim 10^{19} cm^{-2}$ may be decelerated to a terminal ...
Benjamin, Robert A., Danly, Laura
openaire +2 more sources
Aerosol effect on the mobility of cloud droplets
Environmental Research Letters, 2015 Cloud droplet mobility is referred to here as a measure of the droplets’ ability to move with ambient air. We claim that an important part of the aerosol effect on convective clouds is driven by changes in droplet mobility. We show that the mass-weighted
Ilan Koren, Orit Altaratz, Guy Dagan
doaj +1 more source
Terminal Velocity of Single Drops in Stagnant Liquids
Journal of Fluid Science and Technology, 2006 Terminal velocities of single drops rising through infinite stagnant liquids under wide ranges of fluid properties were measured to examine the effects of initial shape deformation, surfactants and the viscosity ratio.
Win MYINT +2 more
doaj +1 more source
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2020 In this study, physical properties of grain and cluster straw including geometric dimensions, moisture absorption and aerodynamic properties of two wheat cultivars were investigated.
Mohammad Jafari +2 more
doaj +1 more source
Remote Sensing, 2021 The vertical structure of ice clouds and vertical air motion (Vair) were investigated using vertically pointing Ka-band cloud radar. The distributions of reflectivity (Z), Doppler velocity (VD), and spectrum width (SW) were analyzed for three ice cloud ...
Bo-Young Ye, GyuWon Lee
doaj +1 more source
Neural Network Assisted Inverse Dynamic Guidance for Terminally Constrained Entry Flight
The Scientific World Journal, 2014 This paper presents a neural network assisted entry guidance law that is designed by applying Bézier approximation. It is shown that a fully constrained approximation of a reference trajectory can be made by using the Bézier curve.
Hao Zhou, Tawfiqur Rahman, Wanchun Chen
doaj +1 more source
Effect of moisture content on terminal velocity of lentil grain
Research in Agricultural Engineering, 2019 One of the aerodynamic characteristics of lentil is its terminal velocity. In order to determinate the terminal velocity, was designed a vertical wind tunnel. It was fabricated based on existing methods and standards. For decreasing the non-uniformity of
Zahra Basati +2 more
doaj +1 more source