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Antibiotic resistance in soil and water environments
International Journal of Environmental Health Research, 2002Seven locations were screened for antibiotic-resistant bacteria using a modified agar dilution technique. Isolates resistant to high levels of antibiotics were screened for r plasmids. Low-level resistance (25 micro g x ml(-1)) was widespread for ampicillin, penicillin, tetracycline, vancomycin and streptomycin but not for kanamycin.
Nwadiuto, Esiobu +2 more
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Electrical Resistivity to Assess Soil Properties
2011International ...
Richard, Guy +3 more
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Measurement of soil suction using soil's resistivity
2009During several years, the analyses of geotechnical problems have been dominated by solutions developed in the classical soil mechanics where the soil is considered completely saturated or dry, conditions that make the analyses less complicated. However, in many geotechnical problems, the engineer has to deal with unsaturated soils which properties are ...
Perez N., Garnica P., Landaverde N.
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Mechanisms for Resistance in Soil
Science, 2006Pickup, Roger W., Rhodes, Glenn
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Erosion Resistance of Cohesive Soils
Journal of the Hydraulics Division, 1981An experimental study is described that concerned the surface erosion of an illitic silty clay (Grundite) at selected salinities and water contents; the study was designed to test the applicability of rate process and double layer theories. Both velocity increment and temperature increment tests were run in a refrigerated water tunnel.
William E. Kelly, Ronald C. Gularte
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Measurement of Earth conductor resistance and soil resistivity
Summer Event on History of Electrical Engineering, 2003Earth resistance measurement relates in part to the oldest electrical technology namely lightning protection. In this paper, both the definition of earth resistance and the theoretical calculation of the resistance of a hemispherical conductor are shown. A practical demonstration of a test set is given. The limitation and assumptions of the methods are:
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