نتایج جستجو برای: multi effect evaporation with thermal vapour compression
تعداد نتایج: 10186232 فیلتر نتایج به سال:
Methanol (CH3OH) is a colorless liquid with a mild odor. The wide ranges of applications, toxicity and clinical implications of methanol have made necessary to develop reliable and high-performance methanol sensors. In this paper, WO3 thin films were deposited on SiO2/Si substrates by e-beam evaporation technique under normal and oblique angles and then post-annealed at 500 °C with a flow of ox...
Background: In the telemedicine process, using digital techniques in disease diagnosis caused to have felt needs of archiving and storing patient information and high bandwidth in data transfer. Methods: This study aimed at introducing an efficient way of multi-stage compression of mammographic image data based LM algorithm and artificial neural networks. At First, data derived from mamm...
Abstract Bare soil evaporation is controlled by a combination of capillary flow, vapour diffusion and film flow. Relevant analytical solutions mostly assume horizontal flow conditions ignore gravitational effects. Salvucci (1997) provided rare example semi-analytical solution for vertical bare evaporation. However, they did not explicitly represent which are likely to account significant propor...
This paper presents the numerical analysis of an experimental soil drying test carried on initially slurry specimen with controlled temperature and relative humidity in a laboratory environmental chamber. The imposed conditions lead to evaporation consequent shrinkage, triggering perimeter crack between body mould. follows THM approach two objectives: identify parameters that govern drying, det...

 Based on the monitoring data, features of long-term changes evaporation from water surface are determined. Data relatively small evaporators and basins located in different regions Ukraine were processed. It was found that during first part observation period, which began 1950s, had tendency to decrease, while second it increased significantly. To determine factors these changes, existin...
mg(oh)2 nanoparticles were synthesized by a rapid microwave reaction. the effect of sodium dodecyl sulfonate (sds as anionic surfactant) and cetyl tri-methyl ammonium bromide (ctab as cationic surfactant) on the morphology of magnesium hydroxide nanostructures was investigated. multi wall carbon nano tubes was organo-modified for better dispersion in cellulose acetate matrix. the influence of m...
High-spectral-resolution thermal infrared radiance observations made with the Airborne Research Interferometer Evaluation System instrument on the Met Of ce C130 aircraft in tropical and sub-arctic atmospheres are used to evaluate the water vapour continuum and line absorption. Coincident microwave radiometer measurements at 183 GHz are used to help constrain the water vapour pro le. Through ...
in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...
In many dispersed multiphase flows bubbles, droplets, and particles move and disappear due to a phase change. Practical examples include vapour bubbles condensing in subcooled liquids, fuel droplets evaporating in a hot gas and ice crystals melting in water. After these 'bodies' have disappeared, they leave behind a remnant 'ghost' vortex as an expression of momentum conservation. A general fra...
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