for better understanding of tehran ground water, samples were taken randomly from 340 out of 655 deep & semi deep wells in 1993, which dug by tehran water supply and sewage engineering company. 260 water specimens were examined chemically and physically and compared with the 1993 world health organization (who) and food and agriculture organization (fao) criteria and analyzed statistically. log...

purpose: to evaluate the effect of topical phenytoin 1 % on corneal epithelial defects healing in a rabbit model. methods: one eye of 20 albino rabbits in the animal house of al-zahra ophthalmology hospital was studied. a single corneal epithelial defect was created. the rabbits were randomly assigned into two groups (ten animals in each group). after creating a chemical burn in rabbits, one gr...

a greenhouse experiment was conducted in 2013 in research lab of karaj islamic azad university to determine the yield and activity of chemical markers as the response to different concentrations of cadmium (cd) (0, 5, 10 and 20 mg of cd/kg of soil) in wheat cultivars (karaj 1 and karaj 2). treatments were tested in a factorial experiment with four replications in 7.5 kg plastic pots. the respon...

background: fire and explosion hazards are extremely important in processing units. this study was performed to identify the risk centers, the potential damage caused by fire and explosion, and the days of production cessation in the processing company. materials and methods: the present qualitative case study was conducted using dow’s index in 2015. the fire and explosion hazard index and leve...

Alcohol in Iran is produced mainly from molasses of sugar cane and sugar beet. Other sources of alcohol production like wheat and barley exist, but because of some cultural and political reasons, they cannot be legally used for producing alcohol in Iran. Twenty-six manufacturers in 18 provinces are officially active. The actual capacity of ethanol production with medical purity is about 100mill...