The measurement of droplet size distribution of water-oil emulsion through NMR method

Measurement techniques concerning droplet size distribution of electrosprayed water

The carefully-sized electrospraying of water is an important research problem because of wide use of sprays of water and aqueous solutions in many fields of industry and agriculture. The size of water droplets (or aqueous solutions) and its distribution is essential for various applications of aerosols. The measurement of size of electrosprayed water using laser-based measurement techniques is ...

Influence of Salinity, Surfactants and Power of Ultrasonic Homogenizer on Droplet Size Distribution of Crude Oil/Water Emulsions

Emulsion Droplet Sizing Using Nmr: Application to Water-in-crude Oil Emulsions

Emulsion droplet sizing is an essential measurement requirement of a very broad range of industries including food, pharmaceuticals, personal care products, agrochemicals and crude oil dispersions. Nuclear magnetic resonance (NMR), courtesy of its ability to measure restricted self-diffusion via application of pulsed field magnetic field gradients (PFG), is able to readily measure emulsion drop...

Droplet break-up in a stirred water-in-oil emulsion in the presence of emulsifiers

Scaling laws for droplet break-up in stirred emulsifier-containing water-in-oil emulsions with dispersed volume fractions up to 70% were evaluated. The emulsions were stirred with a standard turbine impeller and the droplet diameters were determined as a function of time both microscopically and via turbidity measurements. The droplet size was found to decrease very slowly: a steady state was r...

buckling of viscoelastic composite plates using the finite strip method

در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....

the effect of vocabulary instruction through semantic mapping on learning and recall of efl learners

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