Item hits: (Results 61-70 of 105)

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	Century-scale perspective on water quality in selected river basins of the conterminous United States [研究报告] U.S. Geological Survey. 2012-01-01 Stets, Edward G.;  Kelly, Valerie J. vjkelly@usgs.gov;  Broussard, Whitney P. III;  Smith, Thor E. tesmith@usgs.gov;  Crawford, Charles G. cgcrawfo@usgs.gov Adobe PDF(35127Kb)  |  View/Download：20/8
	Simulation of groundwater flow in the shallow aquifer system of the Delmarva Peninsula, Maryland and Delaware [研究报告] U.S. Geological Survey. 2012-01-01 - Adobe PDF(21230Kb)  |  View/Download：0/0
	Navajo Generating Station and Air Visibility Regulations: Alternatives and Impacts [研究报告] 10.2172/10338172012-01-01 Hurlbut, D. J.;  Haase, S.;  Brinkman, G.;  Funk, K.;  Gelman, R.;  Lantz, E.;  Larney, C.;  Peterson, D.;  Worley, C.;  Liebsch, E. Adobe PDF(6693Kb)  |  View/Download：41/2
	Final Report: Computer Simulation of Osmosis and Reverse Osmosis in Structured Membranes [研究报告] 10.2172/10324902012-01-01 Sohail Murad Adobe PDF(300Kb)  |  View/Download：3/1
	Integrated genome-based studies of Shewanella ecophysiology [研究报告] 10.2172/10347532012-01-01 Segre Daniel;  Beg Qasim Adobe PDF(88Kb)  |  View/Download：1/1
	Collaborative research. Study of aerosol sources and processing at the GVAX Pantnagar Supersite [研究报告] 10.2172/12211642012-01-01 Worsnop, Doug [Univ. of Colorado, Boulder, CO (United States)];  Volkamer, Rainer [Univ. of Colorado, Boulder, CO (United States)] Adobe PDF(1419Kb)  |  View/Download：18/4
	Total nitrogen and suspended-sediment loads and identification of suspended-sediment sources in the Laurel Hill Creek watershed, Somerset County, Pennsylvania, water years 2010-11 [研究报告] U.S. Geological Survey. 2012-01-01 Sloto, Ronald A. rasloto@usgs.gov;  Gellis, Allen C. agellis@usgs.gov;  Galeone, Daniel G. dgaleone@usgs.gov View  |  Adobe PDF(11168Kb)  |  View/Download：1/1
	County-level estimates of nitrogen and phosphorus from commercial fertilizer for the Conterminous United States, 1987???2006 [研究报告] U.S. Geological Survey. 2012-01-01 Gronberg, Jo Ann M.;  Spahr, Norman E. nspahr@usgs.gov View  |  Adobe PDF(973Kb)  |  View/Download：0/0
	Sources and sinks of nitrogen and phosphorus to a deep, oligotrophic lake, Lake Crescent, Olympic National Park, Washington [研究报告] U.S. Geological Survey. 2012-01-01 Moran, P.W.;  Cox, S.E.;  Embrey, S.S.;  Huffman, R.L.;  Olsen, T.D.;  Fradkin, S.C. View  |  Adobe PDF(6014Kb)  |  View/Download：3/2
	Preliminary assessment of sources of nitrogen in groundwater at a biosolids-application area near Deer Trail [研究报告] U.S. Geological Survey. 2012-01-01 Yager, Tracy J.B.;  McMahon, Peter B. pmcmahon@usgs.gov View  |  Adobe PDF(1209Kb)  |  View/Download：56/45

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