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Results of a theoretical study of the electronic properties of (Si)Ge and (Ge)Si core/shell nanoparticles, homogeneous SiGe clusters, and Ge$|$Si clusters with an interphase separating the Si and Ge atoms are presented. In general, (Si)Ge…

介观与纳米尺度物理 · 物理学 2009-11-11 Abu Md. Asaduzzaman , Michael Springborg

See http://www.youtube.com/watch?v=izbGXdjvK_I for a YouTube video showing part of the results in this paper.We will consider surfaces whose mean curvature at a point is a linear function of the square of the distance from that point to the…

微分几何 · 数学 2014-04-14 Bennett Palmer , Oscar Perdomo

Droplets confined in a microfluidic channel often exhibit intriguing shapes, primarily attributable to complex hydrodynamic interactions over small scales. We show that effect of varied substrate wettability conditions may further…

流体动力学 · 物理学 2015-09-11 Kaustav Chaudhury , Debabrata DasGupta , Tamal Roy , Suman Chakraborty

The deformation energy of the even-even nuclei of the Cerium isotopic chain is investigated by means of the Macroscopic-Microscopic method with a semi-classical shell correction. We consider axially symmetric shapes. Binding energy and two…

核理论 · 物理学 2015-06-04 B. Mohammed-Azizi , A. Helmaoui , D. E. Medjadi

We report on the experimental observation of vortex cluster shedding from a moving obstacle in an oblate atomic Bose-Einstein condensate. At low obstacle velocities $v$ above a critical value, vortex clusters consisting of two like-sign…

量子气体 · 物理学 2016-12-21 Woo Jin Kwon , Joon Hyun Kim , Sang Won Seo , Yong-il Shin

A semiclassical analysis is made of the origin of an undulating pattern in the smoothed level density for a reflection-asymmetric superdeformed oscillator potential. It is suggested that, when the octupole-type deformation increases, an…

核理论 · 物理学 2023-02-06 Ken-ichiro Arita

This work investigates the orbital dynamics of a fluid-filled deformable prolate capsule in unbounded shear flow. The motion of the capsule is simulated using a model that incorporates shear elasticity, area dilatation, and bending…

流体动力学 · 物理学 2019-11-18 Xiao Zhang , Michael D. Graham

We investigate the dynamical pathways of a geometric phase transition in a two-dimensional active lattice gas undergoing motility-induced phase separation. The transition is between metastable morphologies of the liquid cluster: a…

软凝聚态物质 · 物理学 2026-01-01 Liheng Yao , Michael E. Cates , Robert L. Jack

We explore the influence of particle shape on the behavior of evaporating drops. A first set of experiments discovered that particle shape modifies particle deposition after drying. For sessile drops, spheres are deposited in a ring-like…

软凝聚态物质 · 物理学 2013-08-13 Peter J. Yunker , Tim Still , A. G. Yodh

The ground states of some nuclei are described by densities and mean fields that are spherical, while others are deformed. The existence of non-spherical shape in nuclei represents a spontaneous symmetry breaking.

核理论 · 物理学 2012-05-23 Ikuko Hamamoto , Ben R. Mottelson

We study the formation and characteristics of "spin droplets",i.e., compact spin-polarized configurations in the highest occupied Landau level, in an etched quantum Hall device at filling factors $2\leq\nu\leq3$. The confining potential for…

介观与纳米尺度物理 · 物理学 2015-06-12 H. Atci , U. Erkarslan , A. Siddiki , E. Rasanen

Nematic drops suspended in the isotropic phase of the same substance were subjected to alternating electrical fields of varying frequency. The system was carefully kept in the isotropic-nematic coexistance region, which was broadened due to…

软凝聚态物质 · 物理学 2009-03-27 Günter K. Auernhammer , Jinyu Zhao , Beate Ullrich , Doris Vollmer

We consider a variational model of electrified liquid drops, involving competition between surface tension and charge repulsion. Since the natural model happens to be ill-posed, we show that by adding to the perimeter a Willmore-type…

偏微分方程分析 · 数学 2024-09-18 Michael Goldman , Matteo Novaga , Berardo Ruffini

Nuclear liquid drop model is revisited and an explicit introduction of the surface-curvature terms is presented. The corresponding parameters of the extended classical energy formula are adjusted to the contemporarily known nuclear binding…

核理论 · 物理学 2016-09-08 K. Pomorski , J. Dudek

The solidification of metallic droplets into powder particles involves a complex interplay between heat diffusion, surface tension, and geometric constraints. In confined, curved systems -- such as those encountered in atomisation,…

材料科学 · 物理学 2026-01-13 Priti Ranjan Panda , Harish Singh Dhami , Koushik Viswanathan

The stability of a quasicrystalline structure, recently obtained in a molecular-dynamics simulation of rapid cooling of a binary melt, is analyzed for binary hard-sphere mixtures within a density-functional approach. It is found that this…

材料科学 · 物理学 2017-02-08 H. M. Cataldo

We investigate the electrohydrodynamics of an initially spherical droplet under the influence of an external alternating electric field by conducting axisymmetric numerical simulations using a charge-conservative volume-of-fluid based…

流体动力学 · 物理学 2020-07-22 Kirti Chandra Sahu , Manoj Kumar Tripathi , Jay Chaudhari , Suman Chakraborty

Rivulets and droplets are naturally appearing shapes when small amounts of liquid are deposited on a partially wettable substrate. Here we study, by means of numerical simulations, the dewetting dynamics of a ring-rivulet on substrates with…

流体动力学 · 物理学 2026-02-09 Stefan Zitz , Andrea Scagliarini , Johan Roenby

We employ three-dimensional numerical simulations to explore the impact dynamics of non-spherical drops in a deep liquid pool by varying the aspect ratios $(A_r)$ and Weber numbers $(\We)$. We observe that when a non-spherical drop is…

流体动力学 · 物理学 2024-03-19 Nagula Venkata Anirudh , Sachidananda Behera , Kirti Chandra Sahu

We demonstrate that emulsion droplets stabilized by interfacial particles become unstable beyond a size threshold set by gravity. This holds not only for colloids but supra-colloidal glass beads, using which we directly observe the ejection…

软凝聚态物质 · 物理学 2012-11-26 Joe W. Tavacoli , Gijs Katgert , E. Grace Kim , Michael E. Cates , Paul S. Clegg