today, urban environment experts are endeavoring after new ways to increase the amount of urban green spaces and discover the best way to enter them as lively part of cities. greenways can supply the needs of urbanization to green spaces in addition they are effective in urban green transportation. this study is trying to offer an approach in process of urban greenways planning by ahp analytica...

In this research study, methanol synthesis catalysts were manufactured with various mole ratios of metal carbonates (zinc, copper and aluminum carbonate) and ammonium hydrogen carbonate via a green solid-state method that employed a ball mill apparatus. Some parameters for the catalyst preparation, such as Al mole percent, Cu/Zn mole ratio, rotations milling speeds and aging time, were optimize...