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Chemotactic selection of pollutant degrading soil bacteria

Description: A method is described for identifying soil microbial strains which may be bacterial degraders of pollutants. This method includes: Placing a concentration of a pollutant in a substantially closed container; placing the container in a sample of soil for a period of time ranging from one minute to several hours; retrieving the container and collecting its contents; microscopically determining the identity of the bacteria present. Different concentrations of the pollutant can be used to determine … more
Date: March 4, 1991
Creator: Hazen, T. C.
Item Type: Refine your search to only Patent
open access

A method to estimate the concentration of elements in smoke from burning vegetation growing in contaminated soil

Description: The Savannah River Site has areas where soil is contaminated with metals and/or radionuclides. Many of these areas are surrounded by native vegetation which is growing adjacent to the area and where the roots have penetrated into the contaminated soil of the area. In some cases vegetation has actually invaded the contaminated area. Even though the volume of contaminated vegetation is small, there are problems associated with its disposal. Vegetation decomposes quickly after burial and the volum… more
Date: March 4, 1991
Creator: Murphy, C. E. Jr.
Item Type: Refine your search to only Report
open access

Optical transcutaneous bilirubin detector

Description: This invention consists of a transcutaneous bilirubin detector comprising a source of light having spectral components absorbable and not absorbable by bilirubin, a handle assembly, electronic circuitry and a fiber optic bundle connecting the assembly to the light source and circuitry. Inside the assembly is a prism that receives the light from one end of the fiber optic bundle and directs it onto the skin and directs the reflected light back into the bundle. The other end of the bundle is trif… more
Date: March 4, 1991
Creator: Kronberg, J. W.
Item Type: Refine your search to only Patent
open access

Transrex 500 kW power supply transductor upgrades

Description: This paper describes various upgrades and tests done at the Research Division 500 kW Transrex power supply dc current transductors and chassis. The results of all modifications were measured on the same test setup with the same transductor head and chassis. Field testing of over one-hundred power supplies indicated that the results given in this paper are similar to the signals observed in the field within a factor of + or {minus} two. The dc transductors yield 10Vdc burden resistor voltage at … more
Date: March 4, 1991
Creator: Jaskierny, W.
Item Type: Refine your search to only Report
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