A polymer solution partially filling a rotating horizontal drum undergoes an elastically driven instability at low Reynolds numbers. This instability manifests itself through localized plumelike bursts, perturbing the free liquid surface. Here we present an expanded experimental account regarding the dynamics of individual plumes and the statistics pertaining to the complex collective interaction between plumes, which leads to plume coagulation. We also present a detailed description of an optical technique that enables the visualization and measurement of surface perturbations in coating flows within a rotating horizontal drum.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.86.056320 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Shear localisation controls the dynamics of earthquakes.
Nat Commun
January 2025
Department of Earth Sciences, University College London, London, UK.
Earthquakes are produced by the propagation of rapid slip along tectonic faults. The propagation dynamics is governed by a balance between elastic stored energy in the surrounding rock, and dissipated energy at the propagating tip of the slipping patch. Energy dissipation is dictated by the mechanical behaviour of the fault, which is itself the result of feedbacks between thermo-hydro-mechanical processes acting at the mm to sub-mm scale.
View Article and Find Full Text PDFAccuracy of flow volume estimation in the dilated aorta using 4D flow MRI: a pulsatile phantom study.
Physiol Meas
January 2025
Electronics, Universidad Favaloro, Solis 453, Buenos Aires, Buenos Aires, 1078, ARGENTINA.
Aortic dilatation is a severe pathology that increases the risk of rupture and its hemodynamics could be accurately assessed by using the 4D flow cardiovascular magnetic resonance (CMR) technique but flow assessment under complex flow patterns require validation. The aim of this work was to develop an in vitro system compatible with CMR to assess the accuracy of volume flow measurements in dilated aortas. Approach.
View Article and Find Full Text PDFExploring common and distinct neural basis of procrastination and impulsivity through elastic net regression.
Cereb Cortex
January 2025
Faculty of Psychology, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, China.
Prior work highlighted that procrastination and impulsivity shared a common neuroanatomical basis in the dorsolateral prefrontal cortex, implying a tight relationship between these traits. However, theorists hold that procrastination is motivated by avoiding aversiveness, while impulsivity is driven by approaching immediate pleasure. Hence, exploring the common and distinct neural basis underlying procrastination and impulsivity through functional neuroimaging becomes imperative.
View Article and Find Full Text PDFInhaled ozone induces distinct alterations in pulmonary function in models of acute and episodic exposure in female mice.
Toxicol Sci
January 2025
Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey, 08854.
Ozone is an urban air pollutant, known to cause lung injury and altered function. Using established models of acute (0.8 ppm, 3 h) and episodic (1.
View Article and Find Full Text PDFNovel Design on Knee Exoskeleton with Compliant Actuator for Post-Stroke Rehabilitation.
Sensors (Basel)
December 2024
Institute of Robotics, Autonomous System and Sensing, School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, UK.
Knee joint disorders pose a significant and growing challenge to global healthcare systems. Recent advancements in robotics, sensing technologies, and artificial intelligence have driven the development of robot-assisted therapies, reducing the physical burden on therapists and improving rehabilitation outcomes. This study presents a novel knee exoskeleton designed for safe and adaptive rehabilitation, specifically targeting bed-bound stroke patients to enable early intervention.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!