Results 71 to 80 of about 8,076 (193)

Optimizing Velocity Field Measurement with 3D-Printed Particles and MATLAB: A Cost-Effective System for Flow Visualization

Aerospace
This article aims to highlight the importance of including quantitative measurements when conducting flow visualization tests, such as those performed in towing tanks, within fluid mechanics analysis. It investigates the possibility of measuring velocity
José Juan Aliaga-Maraver, Ángel Antonio Rodríguez-Sevillano, María Jesús Casati-Calzada, Rafael Bardera-Mora, Estela Barroso-Barderas, Juan Carlos García-Matías, Alfonso Láinez-Muñiz, Davide Visentin   +7 more
doaj   +1 more source

Development of an Imaging‐Based Method for Analyzing Voided Urine Flow Using Conventional and High‐Speed Video Cameras: A Phantom Study

LUTS: Lower Urinary Tract Symptoms, Volume 18, Issue 5, September 2026.
ABSTRACT Aims This study examined whether voided urine form could be an independent parameter to evaluate pathology of the lower urinary tract separately from conventional uroflowmetric measurements. We also evaluated a novel combined methodology of dynamically measuring the velocity and cross‐sectional area (CA) of voided urine.
Masahiro Goto, Tomonori Minagawa, Hiroaki Hara, Noriyuki Ogawa, Tetsuichi Saito, Tetsuya Imamura, Manabu Ueno, Yoshiyuki Akiyama   +7 more
wiley   +1 more source

A Novel Polynomial Approach for Particle Image Velocimetry (PIV) Image Reconstruction

Fluids
Particle Image Velocimetry (PIV) often utilizes a cross-correlation method to determine how far particles have moved between two captured images. The most common methods for vector estimation use computationally exhaustive cross-correlation functions ...
Briana M. Steven, Paul D. Docherty
doaj   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, Volume 38, Issue 43, 3 August 2026.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +1 more source

Study on the Acceleration Process of BaTiO₃ Particles during Vacuum Cold Spraying [PDF]

Cailiao Baohu
In this paper, the acceleration process of BaTiO3 ceramic particles under different vacuum cold spraying parameters was simulated, and the effect of process parameters on particle velocity was discussed.
DENG Bixin, SUN Chengchuan, LU Jing, WU Yingdong, LU Teng, ZHANG Mina
doaj   +1 more source

Plasmon‐Induced Optothermal Manipulation of Colloidal Particles and Biological Entities Resilient to Saline Environments

Advanced Optical Materials, Volume 14, Issue 29, 7 August 2026.
The particle with high surface hydrophilicity exhibits strong thermophoretic attraction, as its dense hydration layer enhances the role of interfacial water molecules in determining thermophoretic mobility over other ionic effects. This finding elucidates the mechanism underlying the robust thermophoretic accumulation of Escherichia coli in high ...
Seungyeop Kang, Louis Quaire‐‐Merlin, Alex J. Thompson, Jang Ah Kim   +3 more
wiley   +1 more source

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, Volume 13, Issue 45, 13 August 2026.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

Advanced Intelligent Systems, Volume 8, Issue 8, August 2026.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

Thromboinflammatory biomarkers in obstetric pathophysiology: Predictive insights into placental insufficiency and feto‐maternal adverse outcomes

Clinical and Translational Discovery, Volume 6, Issue 4, August 2026.
Placental insufficiency is a thromboinflammatory disorder driven by angiogenic imbalance, complement activation, endothelial dysfunction and coagulation dysregulation, leading to microvascular thrombosis, impaired uteroplacental perfusion and adverse maternal and fetal outcomes, including pre‐eclampsia, fetal growth restriction and stillbirth. Abstract
Emmanuel Ifeanyi Obeagu
wiley   +1 more source

Imaging Velocimetry Measurements for Entropy Production in a Rotational Magnetic Stirring Tank and Parallel Channel Flow

Entropy, 2009
An experimental design is presented for an optical method of measuring spatial variations of flow irreversibilities in laminar viscous fluid motion. Pulsed laser measurements of fluid velocity with PIV (Particle Image Velocimetry) are post-processed to ...
Greg F. Naterer, Olusola B. Adeyinka
doaj   +1 more source