Results 11 to 20 of about 28,814 (156)

Solutions of the Sitnikov's circular restricted three body problems when primaries are oblate spheroid [PDF]

open access: yesBibechana, 2013
The solutions of sitnikov's circular restricted three body problem has been tried to obtain by using Lindstedt poincare method if the primaries are oblate spheroid.
RR Thapa, MR Hassan
doaj   +6 more sources

Ultimate Image Singularities in Oblate Spheroidal Coordinates with Applications in Hydrodynamics

open access: yesJournal of Marine Science and Engineering, 2020
This study exploits the Touvia Miloh oblate spheroid theorem with a special focus on hydrodynamical applications. The theorem provides explicit relations that express the oblate spheroidal harmonics, given in terms of the fundamental solutions of the ...
Ioannis K. Chatjigeorgiou   +3 more
doaj   +2 more sources

Modeling long-term volcanic deformation at Kusatsu-Shirane and Asama volcanoes, Japan, using the GNSS coordinate time series

open access: yesEarth, Planets and Space, 2021
Long-term deformation of Kusatsu-Shirane and Asama volcanoes in central Japan were investigated using Global Navigation Satellite System (GNSS) measurements.
Hiroshi Munekane
doaj   +1 more source

Effects of shape on the optical properties of CdSe@Au core-shell nanocomposites

open access: yesAIP Advances, 2023
We studied the local field enhancement factor (LFEF), absorption, and extinction cross sections of spherical, cylindrical, oblate, and prolate core–shell nanocomposites (NCs) theoretically and numerically using the quasi-static approach.
Garoma Dhaba Bergaga   +2 more
doaj   +1 more source

Free-fall experiments of volcanic ash particles using a 2-D video disdrometer [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
Information of aerodynamic parameters of volcanic ash particles, such as terminal velocity, axis ratio, and canting angle, are necessary for quantitative ash-fall estimations with weather radar.
S.-H. Suh   +5 more
doaj   +1 more source

Non-Equilibrium Thermodynamics-Based Convective Drying Model Applied to Oblate Spheroidal Porous Bodies: A Finite-Volume Analysis

open access: yesEnergies, 2021
Commonly based on the liquid diffusion theory, drying theoretical studies in porous materials has been directed to plate, cylinder, and sphere, and few works are applied to non-conventional geometries.
João C. S. Melo   +11 more
doaj   +1 more source

Horizontal locomotion of a vertically flapping oblate spheroid [PDF]

open access: yes, 2018
We consider the self-induced motions of three-dimensional oblate spheroids of density $\rho_s$ with varying aspect ratios $AR=b/c \leq 1$, where $b$ and $c$ are the spheroids' centre-pole radius and centre-equator radius respectively.
Deng, J, Caulfield, Colm-cille Patrick
core   +4 more sources

Gravity field due to a homogeneous oblate spheroid: Simple solution form and numerical calculations

open access: yesContributions to Geophysics and Geodesy, 2011
We present a simple derivation of the interior and exterior gravitational potentials due to oblate spheroid and also its gravity field components by using the fundamental solution of the Laplace equation in oblate spheroidal coordinates.
Milan HVOŽDARA, Igor KOHÚT
doaj   +1 more source

0.5 m Triboelectric Nanogenerator for Efficient Blue Energy Harvesting of All‐Sea Areas

open access: yesAdvanced Science, 2022
Triboelectric nanogenerators (TENGs) to harvest ocean wave blue energy is flourishing, yet the research horizon has been limited to centimeter‐level TENG.
Junrui Feng   +8 more
doaj   +1 more source

Turbulence of Landward and Seaward Wind during Sea-Breeze Days within the Lower Atmospheric Boundary Layer

open access: yesAtmosphere, 2021
Reynolds stress anisotropy is estimated from the stress spheroids, based on 20 Hz ultrasonic anemometer measurements, performed in the coastal area of northern France, over a 1.5-year long period.
Sayahnya Roy   +3 more
doaj   +1 more source

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