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We report pattern formation in an otherwise non-uniform and unsteady flow arising in high-speed liquid entrainment conditions on the outer wall of a wide rotating drum. We show that the coating flow in this rotary drag-out undergoes axial…

流体动力学 · 物理学 2025-01-08 J. John Soundar Jerome , Pierre Trontin , Jean-Philippe Matas

The paper considers a two-dimensional flow in a channel, which consists of straight inlet and outlet branches and a circularly 90-degree curved bend. An incompressible viscous fluid flows through the elbow under the action of a constant…

流体动力学 · 物理学 2022-04-06 Alexander Proskurin

Conventional biomedical imaging modalities, including endoscopy, X-rays, and magnetic resonance, are invasive and cannot provide sufficient spatial and temporal resolutions for regular imaging of gastrointestinal (GI) tract to guide…

The measurement of the optical Transmission Matrix (TM) enables to access "open channels": input patterns, specific to each scattering structure, capable to deliver very high transmission. Various approaches, based either on multiple…

光学 · 物理学 2022-11-23 Marco Leonetti , Luca Leuzzi , Giancarlo Ruocco

We conducted a survey of quasar outflows using the VLT/X-shooter spectrograph. When choosing the 14 BAL and mini-BALs comprising this sample, the data did not cover the S IV and S IV* troughs, whose ratio can be used to determine the…

星系天体物理 · 物理学 2019-05-14 Xinfeng Xu , Nahum Arav , Timothy Miller , Chris Benn

In Amazing numbers in biology, Flindt reports a giant, 128 meter-tall eucalyptus, and a 135 meter-tall sequoia. However, the explanation of the maximum altitude of the crude sap ascent and consequently the main reason of the maximum size…

流体动力学 · 物理学 2012-04-20 Henri Gouin

Middle turbinate resection significantly alters the anatomy and redistributes the inhaled air. The superior half of the main nasal cavity is opened up, increasing accessibility to the region. This is expected to increase inhalation…

We present the discovery of a gravitationally lensed dust-reddened QSO at z = 2.517, identified in a survey for QSOs by infrared selection. Hubble Space Telescope imaging reveals a quadruply lensed system in a cusp configuration, with a…

Expansion Microscopy is a super-resolution technique in which physically enlarging samples in an isotropic manner increases inter-molecular distances such that nano-scale structures can be resolved using light microscopy. This is…

神经元与认知 · 定量生物学 2025-01-22 Shakila Behzadi , Jacquelin Ho , Zainab Tanvir , Gal Haspel , Limor Freifeld , Kristen E. Severi

During the upstroke of a normal eye blink, the upper lid moves and paints a thin tear film over the exposed corneal and conjunctival surfaces. This thin tear film may be modeled by a nonlinear fourth-order PDE derived from lubrication…

数值分析 · 数学 2017-04-07 Tobin A. Driscoll , Richard J. Braun , Joseph K. Brosch

We introduce a Scanning Stereoscopic Particle Image velocimetry~(SSPIV) system which incorporates a thin rotating prism to obtain three-dimensional velocity fields in a large cubical measurement volume. The system makes use of an…

流体动力学 · 物理学 2025-07-22 Paul van der Plas , Yutian He , Varghese Mathai

In this article, we construct a novel 1D-model of microfluidic laminar flows in tapered circular and rectangular channels assuming the flow in channels fully developed. In the model, we take into account the inertance and dynamic pressure…

流体动力学 · 物理学 2021-04-14 Leonid Pekker

Multi-phase fast, massive outflows have been postulated to play a crucial role in galaxy evolution. The aim of this work is to constrain the nature and the fraction of outflowing gas in AGNs, as well as the nuclear conditions possibly at…

星系天体物理 · 物理学 2017-07-12 Michele Perna , Giorgio Lanzuisi , Marcella Brusa , Marco Mignoli , Giovanni Cresci

In this study, capillary-driven flow of different pure liquids and diluted bitumen samples were studied using microfluidic channel (width of 30 um and depth of 9 um). Capillary filling kinetics of liquids as a function of time were…

软凝聚态物质 · 物理学 2016-12-01 Kiarash Keshmiri , Saeed Mozaffari , Plamen Tchoukov , Haibo Huang , Neda Nazemifard

Purpose: To investigate the changes in retinal vascular structures associated various stages of myopia by designing automated software based on an artif intelligencemodel. Methods: The study involved 1324 pediatric participants from the…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Yinzheng Zhao , Zhihao Zhao , Junjie Yang , Li Li , M. Ali Nasseri , Daniel Zapp

The present study investigates the behaviour of the far-field sound radiated by low Mach number tip clearance flow induced by placing a stationary cambered airfoil adjacent to a stationary wall. The tip clearance heights ranged from 14% to…

流体动力学 · 物理学 2024-10-03 Manuj Awasthi , Danielle Moreau , Paul Croaker , Paul Dylejko

We present high sensitivity 12CO and 13CO (1-0) molecular line maps covering the full extent of the parsec scale Haro~6-10 Herbig-Haro (HH) flow. We report the discovery of a molecular CO outflow along the axis of parsec-scale HH flow.…

天体物理学 · 物理学 2011-02-11 Irena Stojimirović , Gopal Narayanan , Ronald L. Snel

Purpose: To quantify choriocapillaris flow alterations in early Sorsby Fundus Dystrophy (SFD) and to investigate the relationship of choriocapillaris flow with the choroidal and outer retinal microstructure. Methods: In this prospective…

Despite their large impact on stellar and galactic evolution, the properties of outflows from red supergiants are not well characterised. We used the Onsala 20m telescope to perform a spectral survey at 3mm and 4mm (68 - 116 GHz) of the red…

太阳与恒星天体物理 · 物理学 2021-11-24 Holly Andrews , Elvire De Beck , Per Hirvonen

Ground-based high-resolution spectra provide a powerful tool for characterising exoplanet atmospheres. However, they are greatly hampered by the dominating telluric and stellar lines, which need to be removed prior to any analysis. Such…

地球与行星天体物理 · 物理学 2024-08-27 Doriann Blain , Alejandro Sánchez-López , Paul Mollière