نتایج جستجو برای: evaporation modes
تعداد نتایج: 131267 فیلتر نتایج به سال:
Capillary bridges are usually formed by a small liquid volume in a confined space between two solid surfaces. They can have a lower internal pressure than the surrounding pressure for volumes of the order of femtoliters. Femtoliter capillary bridges with relatively rapid evaporation rates are difficult to explore experimentally. To understand in detail the evaporation of femtoliter capillary br...
[1] New theoretical considerations indicate that the complementary relationship (CR) of evaporation is inherently asymmetric when the time rate of change between actual and apparent potential evaporations is considered. The theory also estimates the extent of this asymmetry as a function of the surface temperature and predicts that a symmetric CR, independent of the surface temperature, can onl...
It is well-known that evaporation of sessile drops with suspended particles like colloids and coffee powders can yield a variety of two-dimensional patterns depending on the particle shapes and internal flow patterns. Here we show that ordered three-dimensional structures can be built via evaporation of saline drops on highly hydrophobic substrates like pristine PP (polypropylene) with micropor...
The evaporation of a binary liquid mixture of monatomic species into near vacuum has been investigated by molecular dynamics simulations. It has been assumed that atomic interaction forces can be derived by Lennard-Jones potentials. Results are presented about surface composition changes induced by evaporation, the shape of the distribution functions of evaporating atoms. Estimates of evaporati...
The complementary relationship between actual and potential evaporation over southeastern Turkey was examined using a mesoscale climate model and field data. Model simulations of both actual and potential evaporation produce realistic temporal patterns in comparison to those estimated from field data; as evaporation from the surface increases with increasing irrigation, potential evaporation de...
The Lifetimes of Evaporating Sessile Droplets of Water Can Be Strongly Influenced by Thermal Effects
The effect of the thermal properties system on lifetime an evaporating sessile droplet water is analysed using a fully coupled model which involves determining temperature droplet, substrate and atmosphere. evolutions, hence lifetimes, droplets in both extreme modes are calculated. In particular, it shown how lifetimes can be strongly influenced by effects. Droplets with larger initial contact ...
بررسی عملکرد گروهی از زبان آموزان ایرانی در چهار شیوه ارائه فعالیت های شنیداری: تاثیر دو سبک مختلف یادگیری به کوشش وحید حشمتی هدف از انجام این تحقیق بررسی این مطلب بوده است که آیا عملکرد شنیداری زبان آموزانی که زبان انگلیسی را به عنوان زبان خارجی فرا می گیرند در اثر تغییر در شیوه ی ارائه فعالیت های شنیداری و ارائه ی فیلم در یک گروه و فراهم سازی حمایت گر های شنیداری در دو گروه دیگر تغییر می...
Although the global partitioning of evapotranspiration (ET) into transpiration, soil evaporation, and canopy evaporation is not well known, most current land surface schemes and the few available observations indicate that transpiration is the dominant component on the global scale, followed by soil evaporation and canopy evaporation. The Community Land Model version 3 (CLM3), however, does not...
Introduction: We carried out evaporation experiments on Fe-FeS melt and obtained evaporation rates of sulfur from Fe-FeS melt. The Fe-FeS eutectic temperature is about 988°C (1261K), and this temperature could be achieved in the inner region of the solar nebula, and it should be also achieved during the chondrule formation. It is of importance to understand evaporation kinetics of Fe-FeS melt f...
We have examined the growth of thin Pt films on the polar SrTiO3(111) surface using both experimental and theoretical methods. Pt films were grown on both as-received and treated substrates in a UHV chamber using electron beam evaporation, and they were characterized with x-ray and low-energy electron diffraction and atomic force microscopy. The nature of the substrate surface strongly influenc...
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