the fluid flow and heat transfer in a three-dimensional microchannel filled with al2o3- water nanofluid is numerically investigated. the hybrid scheme is used to discretize the convection terms and simpler algorithm is adopted to couple the velocity and pressure field in the momentum equations. the temperature fields, variation of horizontal velocity along the centre line of the channel, averag...

the solubility of cdf2 in the mixed solvent (water(1)+ethanol(2)) with mass fraction, w1 = 0.9,was determined by using solvent evaporating method in the presence of various concentrations(0.100, 0.200, 0.300, 0.400, 0.500, 0.600, 0.800 and 1.500 mo1.1)) of naci at 25°c. the values ofsolubility and solubility product constant of cdf2 in the mixed solvent were evaluated at zero ionicstrength upon...

introduction: this study was conducted to determine the most important strengths and weaknesses of the present evaluation system in tehran university of medical sciences and achieve the main factors to improve this system. method: it was a mixed method study design in two separate and sequential phases. the first phase was a qualitative step applying a document analysis method to interpret the ...

background and aims: diabetes type ii (non-insulin dependent) which is one of the most prevalent diabetes types in the world emerges in people with the age of above 55 and genetic and environmental factors interfere in this disease. the aim of this study was to determine the factors affecting diabetes type ii with generalized mixed linear model. methods: population of this study included 2820 p...

54-year-old male patient was admitted in endocrine ward and referred to our hospital for psychiatric consult due to malaise symptoms , dysphoric mood, irritability, insomnia, loss of appetite, increasing the amount of speech, lack of enjoyment of life, hopelessness, thoughts of worthlessness ,thoughts of death (these symptoms was started from 4 months ago ,after some career change ). other symp...

a 7.5 year-old girl was seeking orthodontic treatment because of severe ectopic eruption of maxillary first permanent molars. it was a rare case that represented approximately horizontal view in panoramic radiograph. the severity of problem was high, but since the patient had maxillary deficiency, it was important to perform the treatment without extraction. treatment began with extraction of u...

we conducted this study to compare fecal calprotectin between exclusively breastfed and formula or mixed fed infants aged one month and six months. sixty term infants were enrolled from the labor ward of valiasr hospital between oct 2011 and july 2015 and their fecal calprotectin was checked by the elisa method and hycult biotech kits. the enrolled infants had a birth weight of 2500-4000 g and ...

background:growth is one of the most important indices in child health. the best and most effective way to investigate child health is measuring the physical growth indices such as weight, height and head circumference. among these measures, weight growth is the simplest and the most effective way to determine child growth status. weight trend at a given age is the result of cumulative growth e...