a synoptic method based on stream analysis is applied to understand the governing mechanism of summer rainfall occurrence in the south of iran. based on this, the rainfall data of 152 stations of iran were analyzed for a 33-year period (1970-2002). investigating the spatial and temporal distribution of summer rainfall, a typical rainy region is recognized in the south east of iran. it is found ...

the study of spatial and temporal changes in climate parameters, is one the most important issues in the world's climate research. study of changes in cloud cover as one of the most important climate parameters is important, because clouds are in top of hydrologic cycle and changes in them make changes in spatial and temporal variations in other climate parameters. in this study, the spati...

drain envelopes play significant roles in the performance of drainage systems due to theirreduction in letting sediments into the drainpipes and also because of an increase in thehydraulic conductivity of soil around the drainpipes. throughout the present research, theeffect of a one 1000 hour flow on dual envelopes consisting of geotextile as a means ofimproving the hydraulic gradient and rice...

improving the processing and the recycled paper properties is one of permanent concern of papermaking. in this research, the effect of nanochitosan addition on the process and product quality made of writing and printing recycled fiber was investigated. being nano size and so its capability in access to the space between pulp suspension components and also its probable ability to make electrost...

sawdust of the most inexpensive and abundant most engrossing read and the ability to absorb heavy metals from water and wastewater types. on the other hand increased metal hexavalent chromium (cr6 +) in drinking water cause toxicity, and complications from it can be. so the purpose of this research, effects of the dosage absorbent sawduste, equilibrium time, the efficiency of absorption and cal...

abstract attention deficit hyperactivity disorder (adhd) is a common mental illness in children, so it is very important to identify effective and permanent treatment. the aim of the present research is to compare the efficacy of individual play therapy and play therapy with family therapy on behavioral problems’ reductionin adhd children. twenty 7-12-year- old school children with adhd were se...

background: the up-regulation of galectin-3, galectin-9, and galectin-15 expression in the luminal and glandular epithelium was reported in preparation of the endometrium for embryo implantation at the midlutheal phase. however, no data was available regarding the expression and the distribution pattern of galectin-8 in the human endometrium during a regular menstrual cycle. objective: the curr...

evaluation of changes present in soil and water resources due to operation implement of floodwater spreading is necessary to assess their positive or negative resultant effect. rate of the internal sediment to diversion spreader channels, surface sedimentation and aggregation of the spreading field depth are most important effective attributes on the yield of floodwater spreading systems. these...

the present experiment was conducted to determine nutritional values of wild pistachio trees (p. khinjuk) leaves it's use it in the diet of sheep. initially chemical composition of p. khinjuk leaf was determined. the diets containing 0, 5, 10, 15, 20, 25 and 30% of p. khinjuk leaf were prepared and used for sheep to determine the best replacement level of it with corn silage. fermentation ...

due to the use of secale montanum for different rangelands reclamation across the country, management of these ecosystems need to be aware of its ability to environmental stresses. this research investigated the effect of pollutant element of cu and pb on seed germination and growth of this species in laboratory. therefore, the effect of five treatments (control, 50, 100, 150, 200ppm) of pb (no...