The large and saturating differential elliptic flow v2(p⊥) observed in Au + Au reactions at RHIC so far could only be explained assuming an order of magnitude denser initial parton system than estimated from perturbative QCD. Hadronization via parton coalescence can resolve this “opacity puzzle” because it enhances hadron elliptic flow at large p⊥ relative to that of partons at the same transve...

This study presents the investigations on effect of heat transfer droplet formation in T-type microfluidic channel. Mineral oil acts as a continuous phase, and water dispersed phase. The Volume Fluid model is used to investigate droplets microchannel. physical properties both fluids change with an increase temperature which dominant are viscosities interfacial tension. parameters such diameter,...

Using confocal microscopy, we have studied the morphology of polymer dispersed liquid crystals ~PDLC! as a function of polymer/liquid crystal composition, polymer cure temperature, and ultraviolet ~UV! curing power and determined how this morphology affects the electro-optical properties. The PDLC morphology consists of a spongelike texture where spherically shaped liquid crystalline domains ar...

We have investigated the vertical organization and evolution of 1-, 5-, 10-, and 20-layer stacks of molecular beam epitaxially grown self-assembled InAs/GaAs quantum dots using high resolution and large-scale cross-sectional scanning tunneling microscopy. We report results regarding the evolution of the dot sizes and shapes, and the assembly of vertically organized columns of stacked dots. As t...

In this study, the coalescence time between two contacting sub-resonance size bubbles was measured experimentally under an acoustic pressure ranging from 10kPa to 120kPa, driven at a frequency of 22.4kHz. The coalescence time obtained under sonication was much longer compared to that calculated by the film drainage theory for a free bubble surface without surfactants. It was found that under th...

The phenomenon of droplet coalescence and jumping has received increasing attention due to its potential applications in the fields condensation heat transfer surface self-cleaning. Basic research on process mechanism coalescence-induced been carried out, some universal laws have established. However, it is found that focus these studies based two identical droplets, with different radii rarely...

Coalescing random walks is a fundamental stochastic process, where a set of particles perform independent discrete-time random walks on an undirected graph. Whenever two or more particles meet at a given node, they merge and continue as a single random walk. The coalescence time is defined as the expected time until only one particle remains, starting from one particle at every node. Despite re...

Abstract Massive close binary stars with extremely small separations have been observed, and they are possible progenitors of gravitational-wave sources. The evolution massive binaries in the protostellar accretion stage is key to understanding their formation process. We, therefore, investigate how protostars, consisting a high-density core vast low-density envelope, can approach each other bu...

We examine whether massive binary black holes in spherically symmetric bulges of galaxies can achieve coalescence through the emission of gravitational radiation under the action of stellar dynamical processes alone. In particular, we address the importance of the Brownian motion of a binary’s center-of-mass to its continued interaction with stellar orbits that allows it to keep hardening: the ...

Coalescence of liquid drops is critical in many phenomena such as emulsion stability, inkjet printing, and coating applications. For sessile drops on a solid surface, the coalescence process is more complicated than the coalescence of drops suspended in a fluid medium as a result of the coupling of the contact line motions to the fluid flow. In this paper, we use video microscopy to track the e...