Abstract: The invention involves the formation of a sulfided stable iron (II) compound from an iron (II) oxide and/or hydroxide and where the molar ratio of sulfur to iron (II) is greater than 1. Preferably these oxides and/or hydroxides are present as nanoparticles in the 5-10 nanometer range. It has been discovered that such particles can be formed at lower cost and with fewer impurities by using ferrous carbonate (FeCO3) from siderite as compared to known processes from various iron salts such as sulfates and chlorides.

Abstract: The invention involves the formation of a stable iron (II) oxide and/or hydroxide. Preferably these oxides and/or hydroxides are present as nanoparticles in the 5-10 nanometer range. It has been discovered that such particles can be formed at lower cost and with fewer impurities by using ferrous carbonate (FeCO3) from siderite as compared to known processes from various iron salts such as sulfates and chlorides. The novel nanoparticles are particularly adapted to removing sulfur compounds such as H2S from liquid and/or gaseous streams, such as hydrocarbon streams.

Abstract: The invention involves the formation of a stable iron (II) oxide and/or hydroxide. Preferably these oxides and/or hydroxides are present as nanoparticles in the 5-10 nanometer range. It has been discovered that such particles can be formed at lower cost and with fewer impurities by using ferrous carbonate (FeCO3) from siderite as compared to known processes from various iron salts such as sulfates and chlorides. The novel nanoparticles are particularly adapted to removing sulfur compounds such as H2S from liquid and/or gaseous streams, such as hydrocarbon streams.

Abstract: Finely divided ferrous carbonate absorbent, siderite granules or absorbent particles made by mixing, agglomerating and shaping finely powdered ferrous carbonate, preferably siderite, in combination with minor effective amounts of water or an optional binder, followed by drying, are used to treat and significantly reduce concentrations of hydrogen sulfide, carbonyl sulfide, organic disulfides, mercaptans and other sulfurous compounds and contaminants in gaseous and liquid fluid streams such as natural gas, light hydrocarbon streams, crude oil, acid gas mixtures, carbon dioxide gas and liquid streams, anaerobic gas, landfill gas, geothermal gases and liquids, and the like. Methods for absorbing sulfur compounds in a moist atmospheric environment and for regenerating the absorbent by contacting it with air and steam or, continuously, by mixing the feed stream with moist air are also disclosed.

Abstract: A method of using a sulfided iron reagent to remove oxygen from gaseous and liquid fluid streams such as natural gas, light hydrocarbon streams, crude oil, acid gas mixtures, carbon dioxide gas and liquid streams, anaerobic gas, landfill gas, geothermal gases and liquids, and the like is disclosed. In a preferred embodiment, the reagent is made by mixing, agglomerating and shaping finely powdered ferrous carbonate, preferably siderite which are used to remove oxygen from a hydrocarbon or carbon dioxide stream that also contains sulfur compounds such as hydrogen sulfide.

Abstract: The present disclosure relates to host cells containing a recombinant polynucleotide encoding a polypeptide where the polypeptide transports cellodextrin into the cell. The present disclosure further relates to methods of increasing transport of cellodextrin into a cell, methods of increasing growth of a cell on a medium containing cellodextrin, methods of co-fermenting cellulose-derived and hemicellulose-derived sugars, and methods of making hydrocarbons or hydrocarbon derivatives by providing a host cell containing a recombinant polynucleotide encoding a polypeptide where the polypeptide transports cellodextrin into the cell.

Abstract: Finely divided ferrous carbonate absorbent, siderite granules or absorbent particles made by mixing, agglomerating and shaping finely powdered ferrous carbonate, preferably siderite, in combination with minor effective amounts of water or an optional binder, followed by drying, are used to treat and significantly reduce concentrations of hydrogen sulfide, carbonyl sulfide, organic disulfides, mercaptans and other sulfurous compounds and contaminants in gaseous and liquid fluid streams such as natural gas, light hydrocarbon streams, crude oil, acid gas mixtures, carbon dioxide gas and liquid streams, anaerobic gas, landfill gas, geothermal gases and liquids, and the like.

Abstract: A computer-based program performs calculations to analyze, vary, test, manage, and/or improve the performance of channels and/or frequencies in the communication spectrum. The program varies parameters of a point of communication, such as the location, transmission power, channel frequency, antenna height, and the like, alone or in combination, to measure, test, and/or evaluate which parameter changes increase the market coverage of a target market or area. In some scenarios, changes to one point of communication cause the regulations governing the broadcast relationship between one or more nearby points of communication to be violated. When this occurs, the program determines which of the parameters, such as the location, transmission power, channel and/or frequency, antenna height, and the like, alone or in combination, of the point of communication interfering with the increased market coverage scenario to vary to overcome the conflict with communications and/or regulatory law.

Abstract: Water purifier using membranes, ion exchange resins and electricity to remove ionic, organic and suspended impurities from water to produce high quality, pure water. Supply water is pre-treated by directing it first into a sediment pre-filter module, a softener module and a sediment removal and dechlorination module. The pre-treated water is supplied to a reverse osmosis module which separates the water into two streams (a purified water stream and a concentrate stream) by collecting fluids from both sides of pressurized membranes. The purified water is passed to an electrodeionization module which further purifies the water and directs the water to an ultraviolet sterilization module. The concentrate stream is divided into a recycle stream which is passed to the inlet of the reverse osmosis module and a waste concentrate stream which flows to an outlet of the machine. A control method for the water purifier is also disclosed.

Abstract: Polymers are randomly labelled with labelling groups such as fluorophores, by a process of creating free radicals on the polymer in the presence of a stable free radical, such as an aminooxyl compound, so that the stable free radical group bonds to the polymer in random fashion. Labelling groups such as fluorophores are attached to the stable free radical groups, before or after they are attached to the polymer. The process allows labelling of polymers having no reactive functional groups, it can also be applied to the labelling of nucleic acids, for use in conjunction with a PCR chain extension sequencing process, to allow the sequencing of target nucleic acids of high molecular weight.

Abstract: The present invention relates to non-psychoactive derivatives of tetrahydro-cannabinol, which exhibit anti-inflammatory, analgesic and leukocyte antiadhesion activities. The invention includes novel derivatives of (3R,4R)-&Dgr;8-tetrahydrocannabinol-11-oic acids [hereinafter referred to as (3R,4R)-&Dgr;8-THC-11-oic acid], as well as pharmaceutical compositions containing the (3R,4R)-&Dgr;8-THC-11-oic acid derivatives. The invention further covers methods of administering the novel derivatives and pharmaceutical compositions as therapeutic agents in the treatment of pain and tissue inflammation. Non-psychoactive derivatives of &Dgr;8-THC-11-oic acid are described which have analgesic and anti-inflammatory properties.