Results 301 to 310 of about 327,401 (350)

Droplet sizes in microemulsions

Physics Letters A, 1984
Abstract A free energy expression for spherical droplets of a three component microemulsion is presented which contains contributions from the interfacial energy as well as from the interactions between droplets. The model gives an expression for the equilibrium radius of the droplets which leads directly to conditions for the existence of a droplet ...
Malcolm J. Grimson, Farideh Honary
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Droplet Size of Cooling Tower Fog

Environmental Letters, 1975
Fog from cooling towers causes problems of visibility and icing along roadways adjacent to the towers; moreover, the visible plume from the towers offers difficulty in that it is equated by much of the public with air pollution. It is desirable to know the size of the fog droplets in order to plan abatement procedures and to determine the airborne ...
T, Rothman, J O, Ledbetter
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Integrated Microfluidic System Capable of Size-Specific Droplet Generation with Size-Dependent Droplet Separation

Journal of Biomedical Nanotechnology, 2013
Droplet-based microfluidics is receiving much attention in biomedical research area due to its advantage in uniform size droplet generation. Our previous results have reported that droplet size plays an important role in drug delivery actuated by flagellated bacteria.
Sangmin, Lee, Seok Jun, Hong, Hyung Jung, Yoo, Jae Hyun, Ahn, Dong-il Dan, Cho   +4 more
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Droplet Size Effects on Film Drainage between Droplet and Substrate

Langmuir, 2006
When a droplet approaches a solid surface, the thin liquid film between the droplet and the surface drains until an instability forms and then ruptures. In this study, we utilize microfluidics to investigate the effects of film thickness on the time to film rupture for water droplets in a flowing continuous phase of silicone oil deposited on solid poly(
Benjamin, Steinhaus, Patrick T, Spicer, Amy Q, Shen   +2 more
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Spatially Resolved Droplet Size Measurements

Journal of Engineering for Gas Turbines and Power, 1986
This paper encompasses initial tests of a droplet sizing technique, providing spatially and temporally resolved measurements within a liquid spray from an air assist nozzle. The method utilizes laser interferometry. The primary size measurement is based upon the signal visibility; it is validated by the peak intensity of the scattered light.
T. A. Jackson, G. S. Samuelsen
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Determination of Droplet Size

PANS Pest Articles & News Summaries, 1975
Abstract Use of less liquid to apply pesticide sprays requires more detailed consideration of droplet size. This paper describes various methods of sampling spray droplets in the field, their measurement under a microscope and calculation of the number and volume median diameter of the sampled droplets.
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Standardizing Spray Droplet Size Distributions

2022
An increasing number of companies and institutions have facilities that allow for the evaluation of droplet size associated with spray application from agrochemical nozzles. In response to the newly launched Council of Producers and Distributors of Agrotechnology (CPDA) Application Enhancement Program (AEP), there is an immediate need for a tool that ...
Bradley K. Fritz, J. Susan Sun, Greg Kruger   +2 more
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Prediction of the droplet size distribution in aerodynamic droplet breakup

Journal of Fluid Mechanics, 2022
The rim and bag dynamics in aerodynamic droplet breakup are investigated experimentally and theoretically. Three main modes contribute to the breakup sizes in aerodynamic droplet breakup: the rim node, the remaining rim and the bag breakup modes. However, existing models only consider one mode and are, therefore, unable to predict the size distribution.
Isaac M. Jackiw, Nasser Ashgriz
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Size from Specular Highlights for Analyzing Droplet Size Distributions

2009
In mechanical engineering, heat-transfer models by dropwise condensation are under development. The condensation process is captured by taking many pictures, which show the formation of droplets, of which the size distribution and area coverage are of interest for model improvement.
Jalba, A.C., Westenberg, M.A., Grooten, M.H.M.   +2 more
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Droplet sizing using silicone oils

Crop Protection, 2001
Abstract The ISO standard protocol for determining size of droplets suspended between two layers of silicone oils of differing viscosity was evaluated in experiments using a monosize droplet generator. Cross-sectional areas of 0.27-nl droplets captured in silicone oils decreased linearly with time until droplets disappeared at 26 min after ...
M Harz, M Knoche
openaire   +1 more source