purpose: to evaluate the success rate and complications of single-plate molteno tube implantation in patients with intractable glaucoma. methods: this study was conducted on records of patients who underwent molteno tube implantation from 1995 to 2000 and had at least 18 months of follow-up. results: thirty six eyes of 35 patients including 20 male and 15 female subjects with mean age of 29.7±2...

introduction although temperatures in 0 and below 0 c° in the cold season of the year and mid latitudes are not necessarily considered an extreme phenomenon, but their long-term durability in a widespread area or their sudden occurrence in the beginning and end of the cold season can make this faetor an extreme extent phenomenon. the extreme phenomena are resulted from interaction between large...

1. introduction one of the most important conditions to have dusty weather beside of unstable weather is existence or non-existence of humidity. unstable weather having enough humidity will produce rain and thunder storm, else if the result will be dust storm. number of particles of dusty storm is depended to wind speed, sec of soil and its dimension. furthermore, vegetation type has importance...

in the present study storms of the economic, political, and human dimensions of space (with the help of satellite imagery (modis, after a time, and the destructive power of hurricanes, including discussions of the factors influencing the formation dynamics, thermodynamics and environmental issues, snow storm 2005 investigated. for a more detailed analysis of synoptic snow storm of guilan, rasht...

SHAHAB is a PC- based simulator developed by Olefin Research Group (ORG), with the simultaneous simulation of the reactor, the firebox, the convection section and the transfer line exchanger in steam Cracking units. The reaction mechanism of thermal cracking of hydrocarbons is generally accepted as free-radical chain reactions. Using a rigorous kinetic model, a complete reaction network for rep...