Abstract: An improved method for in situ microbial filter bioremediation having increasingly operational longevity of an in situ microbial filter emplaced into an aquifer. A method for generating a microbial filter of sufficient catalytic density and thickness, which has increased replenishment interval, improved bacteria attachment and detachment characteristics and the endogenous stability under in situ conditions. A system for in situ field water remediation.

Abstract: Exemplary emulsion admixture for use in hydraulic cement compositions formed by emulsifying an antifoaming agent, surfactant, and a comb polymer having a carbon-containing backbone to which are attached cement-anchoring members and oxyalkylene groups. A method of making a stable emulsion admixture comprising the comb polymer, as well as a hydraulic cement composition comprising the admixture, are also described.

Abstract: An improved method for in situ microbial filter bioremediation having increasingly operational longevity of an in situ microbial filter emplaced into an aquifer. A method for generating a microbial filter of sufficient catalytic density and thickness, which has increased replenishment interval, improved bacteria attachment and detachment characteristics and the endogenous stability under in situ conditions. A system for in situ field water remediation.

Abstract: An improved method for in situ microbial filter bioremediation having increasingly operational longevity of an in situ microbial filter emplaced into an aquifer. A method for generating a microbial filter of sufficient catalytic density and thickness, which has increased replenishment interval, improved bacteria attachment and detachment characteristics and the endogenous stability under in situ conditions. A system for in situ field water remediation.

Abstract: An improved method for in situ microbial filter bioremediation having increasingly operational longevity of an in situ microbial filter emplaced into an aquifer. A method for generating a microbial filter of sufficient catalytic density and thickness, which has increased replenishment interval, improved bacteria attachment and detachment characteristics and the endogenous stability under in situ conditions. A system for in situ field water remediation.

Abstract: An in situ thermally enhanced microbial remediation strategy and a method for the biodegradation of toxic petroleum fuel hydrocarbon and halogenated organic solvent contaminants. The method utilizes nonpathogenic, thermophilic bacteria for the thermal biodegradation of toxic and carcinogenic contaminants, such as benzene, toluene, ethylbenzene and xylenes, from fuel leaks and the chlorinated ethenes, such as trichloroethylene, chlorinated ethanes, such as 1,1,1-trichloroethane, and chlorinated methanes, such as chloroform, from past solvent cleaning practices. The method relies on and takes advantage of the pre-existing heated conditions and the array of delivery/recovery wells that are created and in place following primary subsurface contaminant volatilization efforts via thermal approaches, such as dynamic underground steam-electrical heating.

Abstract: Novel methods for purifying contaminated subsurface groundwater are disclosed. The method is involves contacting the contaminated subsurface groundwater with methanotrophic or heterotrophic microorganisms which produce contaminant-degrading enzymes. The microorganisms are derived from surface cultures and are injected into the ground so as to act as a biofilter. The contaminants which may be treated include organic or metallic materials and radionuclides.

Abstract: A nonelectronic device tracks and homes in on a target to be destroyed by a projectile having a body in which the device is carried. An optical lens disposed in a nose cone of the projectile body receives and focuses infrared radiation or heat from the target, which is an electromagnetic field that may be emanating from an exhaust plume of an incoming enemy intercontinental ballistic missile. A detector converts the radiation focused by the lens into thermal energy. A Golay-type cell receives the thermal energy and converts it into a fluid signal that is transferred via a nonelectronic coupler to a fluidic circuit. A fluidic rate gyro seeks the target and guides the projectile towards the target to be destroyed. A key advantage of the invention is that the nonelectronic infrared heat tracking device is comprised of inert mechanical elements and fluids. Therefore, the device is unaffected by intense magnetic and electromagnetic fields, except for those fields within the design band of the detector element.

Abstract: An ornamental decoration assembly such as would be used with a Christmas tree is disclosed. The assembly provides a decorative effect with the tree while supporting the tree in place. The assembly includes a base having an ornamental decoration on its upper surface with its bottom surface being constructed to stably rest on a floor, table, or other flat surface. A socket is arranged within the ornamental decoration for receiving the lower portion of the tree's stem. Included within the socket is a tubular member, a guide for positioning the tree so that it is straight, and a flexible loop through which the stem is placed. The loop is attached to a flexible shaft which is connected to the drive shaft of a gear which is driven by a worm. The worm is actuated by a stem which extends upwardly to a point above the decoration surface. By turning the stem the loop may be retracted around the tree stem to lock the tree in fixed position in the socket.