نتایج جستجو برای: coalescence time decreases

تعداد نتایج: 1987257  

2006
Lian-Ping Wang Yan Xue Orlando Ayala Wojciech W. Grabowski

An open question in warm rain process and precipitation formation is how rain forms in warm cumulus as rapidly as it has sometimes been observed. In general, the rapid growth of cloud droplets across the size gap from 10 to 50 μm in radius has not been fully explained. Three aspects related to the air turbulence and stochastic coalescence are considered here in an attempt to resolve this open q...

Journal: :Physics Letters B 2021

Deuteron production in high-energy collisions is sensitive to the space–time evolution of collision system, and typically described by a coalescence mechanism. For first time, we present results on jet-associated deuteron pp at s=13 TeV, providing an opportunity test established picture for events with hard scattering. Using trigger particle high transverse-momentum (pT>5 GeV/c) as proxy presen...

2004
D. Ramkrishna

Liquid-liquid dispersions are commonly used for separations and reaction systems, because the added interfacial area due to dispersion aids in mass transfer and chemical reaction rates. Transient coalescence experiments have been performed for a wide range of dispersed-phase fractions and impeller speeds. A similarity transformation of the experimental drop-size distribution is possible for mos...

Journal: :Physics of Fluids 2021

This work is motivated by an experiment of microbubble transport in a polymer microfluidic gas generation device where coalescence-induced detachment exhibits. We numerically study three-dimensional coalescence using the graphics processing unit accelerating free energy lattice Boltzmann method with cubic polynomial boundary conditions. The focus on (CIMD) microfluidics. From experimental obser...

Journal: :Journal of computational biology : a journal of computational molecular cell biology 2012
Laura J. Helmkamp Ethan M. Jewett Noah A. Rosenberg

Among the methods currently available for inferring species trees from gene trees, the GLASS method of Mossel and Roch (2010), the Shallowest Divergence (SD) method of Maddison and Knowles (2006), the STEAC method of Liu et al. (2009), and a related method that we call Minimum Average Coalescence (MAC) are computationally efficient and provide branch length estimates. Further, GLASS and STEAC h...

Journal: :Biotechnology journal 2015
Arjan S Heeres Karin Schroën Joseph J Heijnen Luuk A M van der Wielen Maria C Cuellar

Developments in synthetic biology enabled the microbial production of long chain hydrocarbons, which can be used as advanced biofuels in aviation or transportation. Currently, these fuels are not economically competitive due to their production costs. The current process offers room for improvement: by utilizing lignocellulosic feedstock, increasing microbial yields, and using cheaper process t...

Journal: :تحقیقات مهندسی کشاورزی 0
محمد غلامی پرشکوهی استادیار دانشگاه آزاد اسلامی واحد تاکستان سعید مینایی دانشیار دانشگاه تربیت مدرس علیمحمد برقعی استاد دانشگاه تهران علیرضا بصیری استادیار سازمان پژوهش های علمی و صنعتی ایران

drying is one of the most important steps in raisin processing. during this step, initial moisture content decreases up to 15-17% (db) for suitable storage. achieving optimum drying conditions can affect the processing time and improve raisin quality. temperature, air velocity and pretreatment are important factors in the quality of the grape drying process. in this research, the effect of temp...

2013
Kevin Roger Jean-François Berret

Populations of droplets or particles dispersed in aliquid may evolve through Brownian collisions, aggregation, andcoalescence. We have found a set of conditions under which thesepopulations evolve spontaneously toward a narrow sizedistribution. The experimental system consists of poly(methylmethacrylate) (PMMA) nanodroplets dispersed in a solvent(acetone) + nonsolvent (w...

Journal: :Physics of Fluids 2021

We study the rheology of a two-fluid emulsion in semiconcentrated conditions; solute is Newtonian while solvent an inelastic power-law fluid. The problem at hand tackled by means direct numerical simulations using volume fluid method. analysis performed for different fractions and viscosity ratios under assumption negligible inertia zero buoyancy force. Several carrier fluids are considered enc...

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