Birds show phylogenetic variation in the relative importance of respiratory versus cutaneous evaporation, but the consequences for heat tolerance and evaporative cooling capacity remain unclear. We measured evaporative water loss (EWL), resting metabolic rate (RMR) and body temperature (Tb) in four arid-zone columbids from southern Africa [Namaqua dove (Oena capensis, ∼37 g), laughing dove (Spi...

the paper is focused on the formation of calcium phosphate nanoparticles (cp) in polyelectrolyte-modified microemulsions, in a microemulsion template phase consisting of cyclohexane, water, anionic surfactantant and cosurfactant, in the presence of anionic and cationic polyelectrolyte. it is shown that polyelectrolyte, can be incorporated into the individual inverse microemulsion droplets. the ...

the conversion process of heavy hydrocarbons to the valuable products such as gasoline is an important operation in the oil refineries.one important process is the “fluidized catalytic cracking” (fcc).feed injection in fcc process has an important role in the selectivity and properties of the products.performance of the feed injection system is dependent on the atomizers.the size and contributi...

Lipid oxidation is one of the major causes food spoilage for lipid-rich foods. In particular, oil-in-water emulsions, like mayonnaises and spreads, are prone to due increased interfacial area that facilitates contact between lipids hydrophilic pro-oxidants present in water phase. Polar, amphiphilic lipid species at oil/water interface, mono- (MAGs) di-acylglycerols (DAGs), act as starters initi...

In this study, evaporation of sessile water droplets on hot micro-structured superhydrophobic surfaces is experimentally and theoretically investigated. Water 4 µL are placed micro-pillared silicon substrates with the substrate temperature heated up to 120°C. A comprehensive thermal circuit model developed analyze effects roughness droplet evaporation. For first time, two components heat mass t...

We demonstrate a way to circumvent the interruption of evaporative cooling observed at high bias field for 87 Rb atoms trapped in the (F = 2, m = +2) ground state. Our scheme uses a 3-frequencies-RF-knife achieved by mixing two RF frequencies. This compensates part of the non linearity of the Zee-man effect, allowing us to achieve BEC where standard 1-frequency-RF-knife evaporation method did n...

1968.-In rats in the heat water lost through saliva is the major component of evaporative water loss. Total evaporative water loss was measured from normal and desalivated rats and salivary evaporative water loss was then estimated as the difference in evaporation between normal and desalivated rats. Above 32 C the salivary evaporation gradually increased up to 44 C which was the highest experi...

Evolution of fuel droplet evaporation zone and its interaction with propagating flame front are studied in this work. A general theory is developed to describe the evolutions propagation speed, temperature, onset completion locations ignition spherical flames. The influences liquid mass loading, heat exchange coefficient (or rate) Lewis number on spray studied. Two regimes considered, that is, ...