comparability analyses are performed to investigate similarities/differences of the standard precipitation index (spi) and the reconnaissance drought index (rdi), respectively, utilizing precipitation and ratio of precipitation over potential evapotranspiration (et0). data are from six synoptic stations in south khorasan province in iran.at the first for calculating spi, the elevation-precipita...

Nanosilica was extracted from rice husk, which locally collected the Iraqi mill at Al-Mishikhab district in Najaf Governorate, Iraq. The precipitation method used to prepared powder husk ash, after treating it thermally 700°C, followed by dissolving silica alkaline solution and getting a sodium silicate solution. Two samples of final were study effect filtration on purity sample X-ray fluoresce...

glipizide has been found to form inclusion complexes with β-cyclodextrin (β-cd) in solution and in solid state. the present study was undertaken to determine a suitable method for scaling up glipizide-β-cd inclusion complex formation and to evaluate the effect of some parameters on the efficiency of complexation. the solid inclusion complexes of glipizide and β-cd were prepared at a molar ratio...