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The Impact of Cattle Grazing in High Elevation Sierra Nevada Mountain Meadows over Widely Variable Annual Climatic Conditions
Water Quality Sierra Nevada, Mountain Meadows Livestock Grazing Cattle, Indicator Bacteria
2013/3/11
The impact of summer cattle grazing on water quality during three very different climatic years in the Sierra Nevada was investigated. Water year 2009 had near normal precipitation; 2010 had late prec...
University of Nevada professor demonstrates new hydrogen fuel system
hydrogen energy power source
2007/3/5
应交通研究所所长裴玉龙教授邀请,美国University of Nevada Las Vegas滕化梁教授于2005年7月18日下午来哈尔滨工业大学讲学,为交通运输工程学科的师生作了题为“智能交通系统生命周期建模方法”的学术报告。