We present an experimental study of the global velocity V(t) of a viscous fluid interface during forced-flow imbibition in a disordered medium. Our high resolution setup shows that the fronts display an intermittent behavior signature of a burstlike dynamics, with power-law distributed avalanches. When measured at scales comparable to the correlation length, velocity fluctuations follow an asymmetric non-Gaussian distribution, whose skewness increases with decreasing measuring window and/or injection flow rate, offering the effective number of degrees of freedom probed in our experiment.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.102.094502 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Global prevalence and contributing factors of transplant renal artery stenosis in renal transplant recipients: A systematic review and meta-analysis.
Narra J
December 2024
Division of Nephrology and Hypertension, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, Indonesia.
Transplant renal artery stenosis (TRAS) is a serious complication of renal transplantation, with its prevalence and associated factors remaining inconclusive. The aim of this study was to assess the global prevalence and risk factors associated with TRAS incidence in renal transplant recipients. We conducted a meta-analysis by collecting data on the prevalence and factors associated with TRAS from articles in Scopus, Embase, and PubMed.
View Article and Find Full Text PDFMultimodal transesophageal echocardiography in the surgical resection of patients with hepatocellular carcinoma and inferior vena cava tumor thrombus.
J Gastrointest Oncol
December 2024
Department of Rheumatology, Fuzhou University Affiliated Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China.
Background: The incidence and mortality rate of hepatocellular carcinoma (HCC) are increasing globally. HCC with inferior vena cava tumor thrombus (HCCIVCTT) represents an advanced stage of the disease. Research suggests that for patients with advanced HCCIVCTT, liver resection combined with thrombectomy is a safe and feasible option that can provide moderate survival benefit.
View Article and Find Full Text PDFAssociation of maternal body mass index with hemodynamic and vascular alterations at 35-37 weeks' gestation.
Ultrasound Obstet Gynecol
January 2025
Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK.
Objective: Globally, one in four pregnant women is classified as overweight or obese, based on their prepregnancy body mass index (BMI). Obese pregnant women are at increased risk of adverse pregnancy outcomes and long-term cardiovascular disease that occurs earlier in life. This study aimed to assess maternal hemodynamic and vascular parameters at 35-37 weeks' gestation, to understand the alterations that may occur in association with increased maternal BMI and gestational weight gain, and to evaluate obesity-related pregnancy outcomes.
View Article and Find Full Text PDFVection is enhanced by visual oscillation based on four-stroke apparent motion.
Perception
January 2025
University of Wollongong, Australia.
Illusions of self-motion (vection) can be improved by adding global visual oscillation to patterns of optic flow. Here we examined whether adding apparent visual oscillation (based on four-stroke apparent motion-4SAM) also improves vection. This apparent vertical oscillation was added to self-motion displays simulating constant velocity leftward self-motion.
View Article and Find Full Text PDFPrognostic value of left atrial stiffness in patients undergoing transcatheter aortic valve implantation.
Int J Cardiol Heart Vasc
February 2025
Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
Aim: This study was performed to evaluate the association between left atrial (LA) stiffness and outcomes in patients undergoing transcatheter aortic valve implantation (TAVI).
Methods And Results: This study involved 279 patients with aortic stenosis (AS) who underwent TAVI at Kumamoto University Hospital between 2015 and 2023. During a median follow-up of 468 days (interquartile range: 258-825 days), 42 deaths occurred.
Want 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!