نتایج جستجو برای: coalescence interdiffusion

تعداد نتایج: 6577  

Journal: :Langmuir : the ACS journal of surfaces and colloids 2013
Orest Shardt J J Derksen Sushanta K Mitra

Simulating droplet coalescence is challenging because small-scale (tens of nanometers) phenomena determine the behavior of much larger (micrometer- to millimeter-scale) droplets. In general, liquid droplets colliding in a liquid medium coalesce when the capillary number is less than a critical value. We present simulations of droplet collisions and coalescence in simple shear flow using the fre...

2014
Jenn-Ming Song Wei-Ting Chen Kun-Hung Hsieh Tzu-Hsuan Kao In-Gann Chen Shang-Jui Chiu Hsin-Yi Lee

The structural evolution of thiolate-protected nanoparticles of gold, silver, and their alloys with various Au/Ag ratios (3:1, 1:1, and 1:3) upon heating was investigated by means of in situ synchrotron radiation X-ray diffraction. The relationships between the coalescence and composition of nanoparticles, as well as the surfactant reactions, were clarified. Experimental results show that there...

Journal: :J. Artif. Intell. Res. 2008
Fei Tony Liu Kai Ming Ting Yang Yu Zhi-Hua Zhou

In this paper, we show that a continuous spectrum of randomisation exists, in which most existing tree randomisations are only operating around the two ends of the spectrum. That leaves a huge part of the spectrum largely unexplored. We propose a base learner VR-Tree which generates trees with variable-randomness. VR-Trees are able to span from the conventional deterministic trees to the comple...

2017
Alejandro Acevedo-Malavé

In this work has been proposed a numerical scheme with the aim of simulate the coalescence process between water drops immersed in a continuous phase (n-heptane). This numerical scheme is based in the Finite Volume method and two different values for the initial velocity of the drops were chosen. Depending of the initial velocity of collision some scenarios emerge, such as: permanent coalescenc...

2014
Micah R. Shepherd Kent L. Gee

The number of jet and rocket noise studies has increased in recent years as researchers have sought to better understand aeroacoustic source and radiation characteristics using predominantly linear reconstruction techniques. While jet and rocket noise is often finite-amplitude in nature, little is known about the existence of shock formation and coalescence close to the source. A numerical expe...

2002
L. DUCHEMIN J. EGGERS C. JOSSERAND

We study the coalescence of two drops of an ideal fluid driven by surface tension. The velocity of approach is taken to be zero and the dynamical effect of the outer fluid (usually air) is neglected. Our approximation is expected to be valid on scales larger than ℓ ν = ρν 2 /σ, which is 10nm for water. Using a high-precision boundary integral method, we show that the walls of the thin retractin...

Journal: :Transactions of the Japan Institute of Metals 1971

Journal: :Journal of the Japan Institute of Metals and Materials 1998

Journal: :Metallurgical and Materials Transactions 2021

Abstract Interdiffusion between dissimilar solids can change the properties of joined materials. Although much work has been done to study experimentally and theoretically interdiffusion in one-dimensional (1-D) diffusion couples, studying two-dimensional (2-D) or three-dimensional (3-D) remains a challenge. In this article, we report an experiment develop model multicomponent system 2-D geomet...

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