نتایج جستجو برای: spray modeling

تعداد نتایج: 409687  

2017
François Doisneau Joel Dupays Angelo Murrone Frédérique Laurent Marc Massot F. Doisneau J. Dupays A. Murrone M. Massot

Solid rocket motor flows depend strongly on alumina granulometry, which spreads up with coalescence. Solving droplet sizes in unsteady flows is a modeling and numerical challenge, specially when high loadings generate retrocoupling. As an alternative to Lagrangian approaches, the Eulerian Multi-Fluid model describes polydispersity with size-sorted droplet fluids called sections. A two size mome...

Journal: :Energies 2021

Modeling the fuel injection process in modern gasoline direct engines plays a principal role characterizing in–cylinder mixture formation and subsequent combustion process. Flash boiling, which usually occurs when is injected into an ambient pressure below saturation of liquid, characterized by fast breakup evaporation rates but could lead to undesired behaviors such as spray collapse, signific...

2015
Liandong Hu Qiaofeng Hu

The purpose of this study was to evaluate the pharmacokinetic behavior of florfenicol spray-dried nanosuspersion after oral administration to rabbits and to compare its oral bioavailability characteristics to that of a known soluble powder. Florfenicol spray-dried nanosuspersion was produced by high pressure homogenization followed by spray drying. Plasma concentrations were determined by HPLC....

Journal: :American journal of clinical pathology 2010
Andrew A Renshaw

Whether spray or immersion fixation results in higher adequacy rates for thyroid fine-needle aspiration is not known. I compared 1-year adequacy rates, number of cells, and atypia rates for immersion fixation with split spray fixation and immersion. Adequacy rates increased from 71.9% (289/402) for complete immersion to 78.1% (332/425) with spray fixation of half of the slides (P = .02). The sp...

2009
L. W. Tan F. S. Taip N. Abdul Aziz

Spray drying is a commonly used method of drying a liquid feed through a hot gas. This study aims to obtain the empirical model of the spray drying process of full cream milk using a nozzle atomizer spray dryer, Lab-Plant SD 05 Laboratory Scale Spray Dryer. Inlet air temperature was chosen as the manipulated variable and outlet air temperature was the controlled variable. No disturbance was con...

2017
Ran Ji Ding Zheng Chang Zhou Jiang Cheng Junsheng Yu Lu Li

Tungsten oxide (WO₃) is prepared by a low-temperature ultrasonic spray pyrolysis method in air atmosphere, and it is used as an anode buffer layer (ABL) for organic solar cells (OSCs). The properties of the WO₃ transition metal oxide material as well as the mechanism of ultrasonic spray pyrolysis processes are investigated. The results show that the ultrasonic spray pyrolysized WO₃ ABL exhibits...

2012
F. Doisneau A. Murrone M. Massot

Solid rocket motor flows depend strongly on alumina granulometry, which spreads up with coalescence. Solving droplet sizes in unsteady flows is a modeling and numerical challenge, specially when high loadings generate retrocoupling. As an alternative to Lagrangian approaches, the Eulerian Multi-Fluid model describes polydispersity with size-sorted droplet fluids called sections. A two size mome...

Journal: :Pakistan journal of pharmaceutical sciences 2018
Liandong Hu Qiaofeng Hu Chenchen Yang

In this study a new soluble solid curcumin nanoemulsion powder was prepared using spray-drying technology to improve the solubility and bioavailability of curcumin. The liquid nanoemulsion consisted of curcumin, Capryol 90, Transcutol P, and Cremophor RH40. The solid nanoemulsion was prepared by spray-drying the liquid nanoemulsion in laboratory spray dryer, using lactose as solid carrier. The ...

2015
J. Llop E. Gil M. Gallart J. Llorens

Hand-held spray guns and lances are the most widely used methods of crop protection in greenhouses despite the heavy workload and high risk of operator exposure associated with these techniques (Foqué 2012). These spray application techniques have also proved to be less effective than spray boom equipment under many conditions while the advantages of using vertical boom sprayers compared with u...

2006
A. F. Kanta G. Montavon M. P. Planche C. Coddet

The behavior modeling of Atmospheric Plasma Spray (APS) process requires a global approach which considers interrelated non-linear relationships between coating characteristics / properties in-service and process parameters (power, feedstock injection, kinematics, etc.). Such an approach would permit to reduce the development costs. To reach this objective, the knowledge of the interactions bet...

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