Concerns for atmospheric pollution from auto exhaust have led to the blending of "oxygenates" with motor fuels. The most common oxygenate, methyl tert-butyl ether (MTBE) is currently required within several metropolitan areas (Denver and Phoenix) in the range of 12% of the motor fuel. Amendments to the Clean Air Act may expand this requirement to as many as 44 other areas of the United States i...

The water yield produced at the outlet of a sub-basin is combination multiple interacting land uses. In majority previous research, while accounting for effect use and cover (LULC) on yield, hydrologic components watershed have been attributed to dominant class within that sub-basin. We adopted an approach investigate interaction LULC (WYLD) using Johnson–Neyman (JN) method. soil assessment too...

We report a low temperature, water-based synthesis of Ga0.2Li6.4La3Hf2O12 with high critical current density, cycling stability and no Al3+/Li+ exchange.

temperature is considered as the basic element of climate and also the environmental limiting factor in lutdesert. in this research, in order to identify the temperature of lut desert located in east of central iran, using remote sensing data, six series of modis sensor images related to june 24th & december 23rd 2002, and also january 22nd, march 22nd, june 22nd & september 24th 2003 w...

Diatoms samples in Zayandeh Rood Dam Lake were taken in four stations from surface, 0.5 and 3 m depths of water in three replicate by Nansen sampler. Additional samples were taken from the surface with plankton net. Diatoms samples fixed with 4% formaldehyde and were concentrated and identified using microscope at 400 x. Salinity, NO3, PO4 and SO4 were measured using standard methods (APHA). In...