Results 1 to 10 of about 10,908 (100)

Automatic Recognition Algorithm of Convergence Region Based on Relative Storm Radial Velocity Field

open access: yes应用气象学报, 2021
An algorithm for automatically identifying the mid-altitude radial convergence from the storm-relative radial velocity field is proposed. The algorithm first identifies the positive-negative velocity segments in each radial direction on the single ...
Zhu Li, Kang Lan
doaj   +1 more source

TOI 560: Two Transiting Planets Orbiting a K Dwarf Validated with iSHELL, PFS, and HIRES RVs

open access: yesThe Astronomical Journal, 2022
We validate the presence of a two-planet system orbiting the 0.15–1.4 Gyr K4 dwarf TOI 560 (HD 73583). The system consists of an inner moderately eccentric transiting mini-Neptune (TOI 560 b, $P={6.3980661}_{-0.0000097}^{+0.0000095}$ days, $e={0.294}_{-0.
Mohammed El Mufti   +95 more
doaj   +1 more source

Correction of Dual-PRF Velocity for Operational S-Band Doppler Weather Radar

open access: yesRemote Sensing, 2023
The Weather Radar Center (WRC) of the Korea Meteorological Administration (KMA) has been providing three-dimensional radar wind fields based on the “WInd Synthesis System using Doppler Measurements (WISSDOM)” in real time since February 2019.
So-Yeon Park   +2 more
doaj   +1 more source

A Study of the Radial Velocity of BX Andromedae [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
High resolution spectroscopic observations of BX And using the BOES (Bohyunsan Optical Echelle Spectrograph) of Bohyunsan Optical Astronomical Observatory (BOAO) were performed during 26-27, Feb. 2003.
Chung-Uk Lee   +3 more
doaj   +1 more source

Automated Recognition of Macro Downburst Using Doppler Weather Radar

open access: yesAtmosphere, 2022
In light of the macro downburst’s ground divergent flow field characteristics and high reflectivity, this paper proposes an algorithm for identifying the downburst area using a Doppler weather radar low-level radial velocity and reflectivity factor ...
Xu Wang   +4 more
doaj   +1 more source

Hydrodynamic flow between rotating stretchable disks in an orthotropic porous medium [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2020
A mathematical model of convective steady flow over rotating disks in an orthotropic porous medium has been developed and solved the non-dimentional governing equations for flow by the shooting method that uses fourth order Runge- Kutta integration ...
K. Gowthami   +3 more
doaj   +1 more source

Research on Tangential Velocity Solution and Accuracy Analysis of Radar Target [PDF]

open access: yesMATEC Web of Conferences, 2023
In this paper, a calculation method for the tangential velocity solution of radar target based on linear vector method is proposed. It makes full use of the advantage of high precision radial velocity measurement of radar, and realizes the accurate ...
Yin Qi   +3 more
doaj   +1 more source

Overfitting Affects the Reliability of Radial Velocity Mass Estimates of the V1298 Tau Planets

open access: yesThe Astronomical Journal, 2023
Mass, radius, and age measurements of young (≲100 Myr) planets have the power to shape our understanding of planet formation. However, young stars tend to be extremely variable in both photometry and radial velocity (RV) measurements, which makes ...
Sarah Blunt   +25 more
doaj   +1 more source

Hemodynamic Data Analysis and Site of Measurement in Children and Adolescents

open access: yesArtery Research, 2020
Pulse wave velocity is a method of functional vascular evaluation. The gold standard is the carotid-femoral pulse wave velocity measurement. However, the software allows measurement among radial, carotid and femoral artery.
Mirjam Močnik, Nataša Marčun Varda
doaj   +1 more source

Eulerian–Lagrangian fluid dynamics study on the effects of inlet radial angle on the performance and flow pattern of multi-inlet cyclone separator

open access: yesAlexandria Engineering Journal, 2023
This paper presents a study on the influence of inlet radial angle in a multi-inlet cyclone separator using Eulerian-Lagrangian (EL) fluid dynamics approach. The investigation focuses on the behavior of air and solid particles within the cyclone.
Ibrahim Ademola Fetuga   +9 more
doaj   +1 more source

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