A coalescence model is developed for pairs of unequally sized particles, assuming surface tension driven flow opposed by viscosity. The flow field is extensional, biaxial for spheres and planar for cylinders. The balance of surface energy and viscous dissipation results in a system of two ordinary differential equations for each of the two doublet shapes studied. The solution of the differential equations provides growth of neck radius (or width) as well as surface and cross-sectional area evolution. For an infinitely large size ratio, the model describes the coalescence of a sphere or a cylinder with a semi-infinite wall of the same material. The model is compared to some numerical simulations and experimental measurements available in the literature. The comparison to experiments includes PDMS spheres, macromolecule-rich droplets, spherical bitumen particles, and a smectic circular island with a meniscus.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d2sm00129b | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Neural Correlates of Social Touch Processing: An fMRI Study on Brain Functional Connectivity.
J Integr Neurosci
January 2025
Laboratory for the Study of Tactile Communication, Pushkin State Russian Language Institute, 117485 Moscow, Russia.
Background: The significance of tactile stimulation in human social development and personal interaction is well documented; however, the underlying cerebral processes remain under-researched. This study employed functional magnetic resonance imaging (fMRI) to investigate the neural correlates of social touch processing, with a particular focus on the functional connectivity associated with the aftereffects of touch.
Methods: A total of 27 experimental subjects were recruited for the study, all of whom underwent a 5-minute calf and foot massage prior to undergoing resting-state fMRI.
Group learning contracts in healthcare education: A systematic review.
J Med Imaging Radiat Sci
January 2025
Division of Library Services, Charles Sturt University, Albury, NSW, Australia.
Introduction/background: Group work plays a crucial role in healthcare education by fostering collaboration, communication, and teamwork skills. However, students often face challenges such as unequal workload distribution, conflict, and anxiety. Group learning contracts have been introduced to improve group dynamics by setting clear expectations, enhancing accountability, and promoting effective collaboration.
View Article and Find Full Text PDFPower distance in the workplace and its effect on prosocial behavioral intentions.
Acta Psychol (Amst)
January 2025
Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy.
Power distance, the extent to which individuals in an organization accept unequal distributions of power, significantly influences workplace dynamics, particularly in shaping individuals' willingness to engage in prosocial behaviors. Previous research suggests that individuals with high levels of power distance tend to exhibit more self-centered behavior, making them less inclined to act charitably. In contrast, individuals with lower levels of power distance are more likely to engage in prosocial actions.
View Article and Find Full Text PDFPresence of Fragmented Intratumoral Thrombosed Microvasculature in the Necrotic and Peri-Necrotic Regions on SWI Differentiates IDH Wild-Type Glioblastoma From IDH Mutant Grade 4 Astrocytoma.
J Magn Reson Imaging
January 2025
Department of Radiology, Fortis Memorial Research Institute, Gurugram, India.
Background: Isocitrate dehydrogenase (IDH) wild-type (IDH) glioblastomas (GB) are more aggressive and have a poorer prognosis than IDH mutant (IDH) tumors, emphasizing the need for accurate preoperative differentiation. However, a distinct imaging biomarker for differentiation mostly lacking. Intratumoral thrombosis has been reported as a histopathological biomarker for GB.
View Article and Find Full Text PDFThe Impact of Cancer Status on Anxiety in Prostate Cancer Patients: A Network Analysis.
Curr Oncol
December 2024
Brain-Behaviour Research Group, University of New England, Armidale, NSW 2351, Australia.
Prostate cancer (PCa) patients often also suffer from comorbid anxiety, which can impede treatment efficacy as well as be intrinsically unpleasant. Identification of the associations between particular symptoms of anxiety that are most likely to occur at different points in the PCa diagnosis-treatment journey can inform anxiety treatment choices and potentially influence their overall treatment outcomes. Although simple correlational analyses and ANOVA models of data analysis have been used to address this issue, the possibility of confounds due to the inter-relationships between other anxiety symptoms argues for the use of network analysis, which calculates each symptom-symptom connection while also taking into account the entire range of symptom relationships.
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!