A new theory model based on the local composition concept (TNRF-modified NRTL (TNRF-mNRTL) model) was developed to express the short-range contribution of the excess Gibbs energy for the solutions containing polymer and electrolyte. An equation represented the activity coefficient of solvent was derived from the proposed excess Gibbs energy equation. The short-range contribution of interaction ...

The small hydrate concept (SHC) was proposed to predict the generated excess pore water pressure due to dissociation of gas hydrate within sandy soils. This concept was then used to calculate excess pore water pressure in the Storegga slide of which gas hydrate dissociation may have contributed. Since the excess pore water pressure calculated by the SHC resulted in the considerable loss of stif...

Nephrotic syndrome is a set of signs or symptoms that may point to kidney problems. The kidneys are two-bean shaped organs found in the lower back, each about the size of a fist. They clean the blood by filtering out excess water and salt and waste products from food. Healthy kidneys keep protein in the blood, which helps the blood soak up water from tissues; but kidneys with damaged filters ma...

background: irradiation of water by uv has been considered as an attractive alternative for disinfection because its low- im pact, pathogen killing capacity shows tremendous promise for meeting today’s drinking water regulatory requirements. this study has been performed with the objective of utilizing medium pressure lamp in the preliminary stage of municipal wa ter treatment, namely prior to ...

some children of borazjan area have minute white flecks, yellow or brown spot areas scattered irregularly over the tooth surface, the causative factor was attributed to excess of fluoride in water. to verify this matter short chemical examination of water samples from endemic area was carried out. the results of water analysis by colorimetric method, using zirconium a1izarin reagent after disti...