نتایج جستجو برای: chemical weathering

تعداد نتایج: 382710  

2016
Haiying Shen Jinzhen Cao Wenjing Sun Yao Peng

The photo-stabilizing effect of post-extraction was evaluated for thermally modified wood. Extracted and non-extracted thermally modified Scots pine (Pinus sylvestris L.) samples were exposed in a xenon weather-ometer for 1008 h, and the surface color and chemical changes were characterized using a chroma meter, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), an...

Journal: :Journal of the Mineralogical Society of Japan 1981

Journal: :Journal of the Japan Society of Engineering Geology 1998

2015
P K Jha

Weathering is a continuous process; the best way to deal with weathered coal is to identify the extent of weathering. Based on level of weathering its consumption pattern should be changed, this will help in minimizing the effect of weathering on coke quality. Due to weathering, various technological properties of coal get altered such as as ash, free swelling index, fluidity, plastic range and...

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