Results 81 to 90 of about 8,734 (269)
Semidiurnal Internal Tide North and South of the Critical Latitude in the Kara Sea
Journal of Marine Science and EngineeringTemperature measurements data are analyzed from two moorings in the Kara Sea, north of the critical latitude for semidiurnal internal tides (74°30′ N) at a point at 74°54.3′ N, 69°43.6′ E, and south of the critical latitude at a point at 71°14.2′ N, 65 ...
Eugene Morozov +5 more
doaj +1 more source
International Journal of Climatology, EarlyView.This study investigates summer Greenland atmospheric blocking using the Lagrangian tracking Python package blocktrack applied to ERA5 reanalysis and CMIP6 models. Two types of blocks—upstream (Northern Canada origin) and retrograding (Northern Atlantic origin)—are distinguished, with upstream blocks driving recent observed frequency increasing trends ...
Michele Filippucci +2 more
wiley +1 more source
Computational analysis of air orifice to enhance air twist formation in twisting nozzles
Mechanical Engineering JournalAn air twisting nozzle was investigated by modifying the horizontal connection angle (α) and vertical connection angle (β) of the air orifice relative to the yarn channel, using computational fluid dynamics. Here, α represents the horizontal (rotational)
Makhsuda JURAEVA, Jang Min PARK
doaj +1 more source
Climatology of Tropical Cyclones Approaching Tanzania and Their Impacts on Rainfall in East Africa
International Journal of Climatology, EarlyView.Tropical cyclones (TCs) that approach Tanzania bring heavy rainfall over northern Mozambique, Tanzania, and south‐central Kenya, but the occurrence of these TCs reduces precipitation over southern African countries. Easterly steering winds and the Mascarene High are key features directing TCs westward.
Michinori Ideyoshi, Youichi Kamae
wiley +1 more source
Spatiotemporal Characteristics and Synoptic Patterns of Dry‐Hot Winds (Sukhoviys) in Ukraine
International Journal of Climatology, EarlyView.This study analyses dry‐hot winds, or sukhoviys, a recurrent phenomenon during the warm season across Ukraine that contributes to rapid moisture loss from soil and vegetation. The activity of sukhoviy events was assessed using the introduced Sukhoviy Station Index, accounting for their meteorological characteristics and frequency of occurrence.
Inna Semenova +1 more
wiley +1 more source
Aerodynamic Design and Experimental Investigation of the Sailplane Wing Tip Devices
Acta Polytechnica, 2003 This paper describes an experimental set-up for the investigation of wing tip devices developed as part of a study into the velocity and vorticity distributions in the flow field behind winglets, using hot-wire anemometry.
P. Anderle, L. Smrček, F. N. Coton
doaj
Point vortices on the sphere: a case with opposite vorticities [PDF]
Nonlinearity, 2001 35 pages, 9 ...
openaire +3 more sources
Deep Learning‐Based Dynamic Segmentation of the Left Atrium in 4D Flow MRI
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To design a deep learning pipeline for automated, time‐resolved segmentation of the left atrium (LA) from 4D flow MRI data. Methods We studied 100 individuals including 65 patients with atrial fibrillation (AF) and 35 healthy subjects (HS) resulting in 2530 4D flow MRI time‐volumes acquired in different centers and scanners.
Jonas Leite +16 more
wiley +1 more source
Vorticity and the birth of optical vortices
, 2019 We exploit the vorticity, familiar from fluid mechanics and the theory of superfluids, as a tool to track the birth and subsequent development of optical vortices at a spiral phase plate.
Potoček, Václav +2 more
openaire +2 more sources
On Chirality of the Vorticity of the Universe [PDF]
Entropy, 2012 The presence of dark energy in the Universe challenges the Einstein’s theory of gravity at cosmic scales. It motivates the inclusion of rotational degrees of freedom in the Einstein–Cartan gravity, representing the minimal and the most natural extension of the General Relativity. One can, consequently, expect the violation of the cosmic isotropy by the
openaire +6 more sources