Results 11 to 20 of about 8,199 (263)

Longitudinal topological manipulations of vortex fields via nested spiral arrays [PDF]

iScience
Summary: Vortex beams, characterized by their helical phase wavefronts, hold great promise in optical information science and light-matter interactions.
Ying Wang, Jianmin Wu, Li Ma, Jianwei Liu   +3 more
doaj   +2 more sources

Longitudinal observation of left ventricular inflow reorientation with preserved vorticity after myocardial infarction in a porcine model [PDF]

Frontiers in Cardiovascular Medicine
BackgroundThe evolution of left ventricular (LV) intracardiac flow characteristics following myocardial infarction (MI), and their relationship to LV remodeling, remains incompletely understood, particularly from longitudinal in vivo observations with ...
Sungho Park, Sungho Park, Yura Ahn, Minseong Kwon, Hyun Jung Koo, Dong Hyun Yang, Hyungkyu Huh   +6 more
doaj   +2 more sources

Mutual friction and vortex Hall angle in a strongly interacting Fermi superfluid [PDF]

Nature Communications
We investigate the two-dimensional motion of a single vortex orbiting a pinned anti-vortex in a unitary Fermi superfluid. By analyzing its trajectory, we measure the yet-unknown longitudinal and transverse mutual friction coefficients, which quantify the
N. Grani, D. Hernández-Rajkov, C. Daix, P. Pieri, M. Pini, P. Magierski, G. Wlazłowski, M. Frómeta Fernández, F. Scazza, G. Del Pace, G. Roati   +10 more
doaj   +2 more sources

Evaluation of Vortex Generators in the Heat Transfer Improvement of Airflow through an In-Line Heated Tube Arrangement

Fluids, 2021
Improving heat transfer from surface to airflow is a current research concern for enhancing energy efficiency. The use of vortex generators for improving heat transfer from the surface to the airflow is very effective.
Syaiful, Tri Wahyuni, Bambang Yunianto, Nazaruddin Sinaga   +3 more
doaj   +1 more source

Heat Transfer Characteristic on Wing Pairs Vortex Generator using 3D Simulation of Computational Fluid Dynamic

International Journal of Applied Sciences and Smart Technologies, 2021
Vortex generators are addition surface that can increase heat transfer area and change the fluid flow characteristics of the working fluid to increase heat transfer coefficient.
Petrus Setyo Prabowo, Stefan Mardikus, Ewaldus Credo   +2 more
doaj   +1 more source

Efek Longitudinal Vortex Dihasilkan dari Vortex Generator Jenis Concave Delta dan Rectangular Winglet terhadap Perbaikan Perpindahan Panas: Visualisasi Aliran/Studi Eksperimental

Rekayasa Mesin, 2017
The generation of longitudinal vortex to enhance the rate of heat transfer is a passive method that has been widely considered recently. This consideration is based on improving the energy efficiency and optimum design of a heat exchanger.
Syaiful Syaiful
doaj   +1 more source

Spin–Orbital Transformation in a Tight Focus of an Optical Vortex with Circular Polarization

Applied Sciences, 2023
In the framework of the Richards–Wolf formalism, the spin–orbit conversion upon tight focusing of an optical vortex with circular polarization is studied.
Victor V. Kotlyar, Sergey S. Stafeev, Vladislav D. Zaitsev, Alexey M. Telegin, Elena S. Kozlova   +4 more
doaj   +1 more source

Study on large-scale vortices in chamber floor ports system [PDF]

AIP Advances
The chamber floor ports system is an improved design based on the German pressure chamber. Large-scale vortices within the pressure chamber serve as critical factors affecting system performance. This study establishes a large-scale vortex theory for the
Wei Feng, 冯伟, Chunhang Xie, 谢春航, Peng Wu, 吴澎, Zhihang Liu, 刘智航, Qiulin Li, 李秋林   +9 more
doaj   +1 more source

Field tunable three-dimensional magnetic nanotextures in cobalt-nickel nanowires

Physical Review Research, 2021
Cylindrical magnetic nanowires with large transversal magnetocrystalline anisotropy have been shown to sustain nontrivial magnetic configurations resulting from the interplay of spatial confinement, exchange, and anisotropies.
I. M. Andersen, D. Wolf, L. A. Rodriguez, A. Lubk, D. Oliveros, C. Bran, T. Niermann, U. K. Rößler, M. Vazquez, C. Gatel, E. Snoeck   +10 more
doaj   +1 more source

Investigation of the influence of amplitude spiral zone plate parameters on produced energy backflow [PDF]

Компьютерная оптика, 2019
Investigation of the influence of parameters of silver, aluminum, gold, and chromium spiral zone plates on the longitudinal component of Umov-Pointing vector in produced optical vortices by using the frequency-dependent finite-difference time-domain ...
Elena Kozlova
doaj   +1 more source