نتایج جستجو برای: evaporation

تعداد نتایج: 21316  

Journal: :Ultrasonics sonochemistry 2012
Oshrat Tzhayik Artur Cavaco-Paulo Aharon Gedanken

Protein microspheres have been prepared by sonicating a mixture of pure fragrant oil (amyl acetate (AA)) with an aqueous protein (bovine serum albumin) solution. The prepared protein spheres are nano- to micrometer sized with an encapsulation efficiency of approx. 97% for the AA present on the surface and inside the BSA capsule. Containers were found stable for more than 6 months when stored se...

2009
Abdel Latif

Wide used technique of patterning surfaces with solid particles utilizes the evaporation of colloidal droplets from a substrate. In particular, evaporation of liquid samples is a key problem in the development of microarray technology (including labs-on-a chip), especially in the case of open reactors [1]. A plenty of works are devoted to the evaporation of the sessile droplets [2–5]. One assum...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Chuanhua Duan Rohit Karnik Ming-Chang Lu Arun Majumdar

Cavitation, known as the formation of vapor bubbles when liquids are under tension, is of great interest both in condensed matter science as well as in diverse applications such as botany, hydraulic engineering, and medicine. Although widely studied in bulk and microscale-confined liquids, cavitation in the nanoscale is generally believed to be energetically unfavorable and has never been exper...

1984
FRANK BRYAN

The distribution of evaporation minus precipitation over the globe and its seasonal variations are estimated from global atmospheric circulation statistics for the period May 1963 to April 1973. Meridional profiles of evaporation minus precipitation over the Atlantic, Pacific, and Indian oceans, over all oceans combined, and over all continents combined, as well as the total evaporation minus p...

2014
H. K. Dhavaleswarapu J. Y. Murthy S V. Garimella Hemanth K. Dhavaleswarapu Jayathi Y. Murthy Suresh V. Garimella

A detailed numerical model is developed that describes heat and mass transfer from a meniscus to open air. The model accounts for the effects of evaporation at the interface, vapor transport through air, thermocapillary convection, and natural convection in air. Evaporation at the interface is modeled using kinetic theory, while vapor transport in air is computed by solving the complete species...

2011
R. Karami B. Kamkari K. Kashefi

Applying corona wind as a novel technique can lead to a great level of heat and mass transfer augmentation by using very small amount of energy. Enhancement of forced flow evaporation rate by applying electric field (corona wind) has been experimentally evaluated in this study. Corona wind produced by a fine wire electrode which is charged with positive high DC voltage impinges to water surface...

Journal: :Journal of medical entomology 2011
Kristen Bartlett-Healy Sean P Healy George C Hamilton

Container-dwelling mosquitoes use a wide variety of container habitats. The bottle cap is often cited as the smallest container habitat used by container species. When containers are small, the habitat conditions can greatly affect evaporation rates that in turn can affect the species dynamics within the container. An evaporation rate model was adapted to predict evaporation rates in mosquito c...

2008
Patricia Göbel Phillip Starke Wilhelm G. Coldewey

Pavements consisting of water-permeable paving stone have a certain retention and storage capability for rainwater in the event of intense rain. Applied on a large surface, this results in a mitigation of flood events. Compared to an impermeable surface area, the surface flow rate decreases while groundwater regeneration increases. To date, the actual change in the third water balance parameter...

2014
Hossein Davarzani Kathleen Smits Ryan M Tolene Tissa Illangasekare

In an effort to develop methods based on integrating the subsurface to the atmospheric boundary layer to estimate evaporation, we developed a model based on the coupling of Navier-Stokes free flow and Darcy flow in porous medium. The model was tested using experimental data to study the effect of wind speed on evaporation. The model consists of the coupled equations of mass conservation for two...

2014
Adriano Francisco Ronzoni Cláudio Melo Carolin Ries Adriano F. RONZONI Cláudio MELO Carolin RIES

This paper describes an experimental and theoretical analysis of the heat and mass transfer processes that take place during defrosted water evaporation from compressor water trays. The influence of the operating conditions on the water evaporation rate was experimentally evaluated using a purpose-built testing facility. Two different tray designs were studied (top hat and membrane). In total, ...

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