Abstract: A reaction-based process has been developed for the selective removal of carbon dioxide (CO2) from a multicomponent gas mixture to provide a gaseous stream depleted in CO2 compared to the inlet CO2 concentration in the stream. The proposed process effects the separation of CO2 from a mixture of gases (such as flue gas/fuel gas) by its reaction with metal oxides (such as calcium oxide). The Calcium based Reaction Separation for CO2 (CaRS—CO2) process consists of contacting a CO2 laden gas with calcium oxide (CaO) in a reactor such that CaO captures the CO2 by the formation of calcium carbonate (CaCOa). Once “spent”, CaCO3 is regenerated by its calcination leading to the formation of fresh CaO sorbent and the evolution of a concentrated stream of CO2. The “regenerated” CaO is then recycled for the further capture of more CO2. This carbonation-calcination cycle forms the basis of the CaRS—CO2 process.

Abstract: The present invention provides a high capacity adsorbent for removing sulfur from hydrocarbon streams. The adsorbent comprises a composite material containing particles of a nickel phosphide complex NixP. The adsorbent is utilized in a sulfur removal process that does not require added hydrogen, and run at relatively low temperatures ranging from about 150° C. to about 400° C. The process of this invention enables “ultra-deep” desulfurization down to levels of about 1 ppm and less.

Abstract: A method of associating a given text document with relevant structured data is disclosed. The method receives as inputs a text document, and structured data in the form of a relational database. The method then identifies terms in the text document, and searches and queries the structured data using the terms to identify fragments of the structured data that are relevant to the document. Finally, the text document and the identified fragments of structured data are output to a user.

Abstract: A connection-trace standard is used to collect cell-drop information from switches in the path of a network connection in order to identify non-performing switches. Special codes may be inserted in the vendor specific fields of the trace transit list information elements of specified messages. These codes indicate that that cell-drop information is to be collected along with the trace. Switches that carry the connection may then read the codes in the messages and populate appropriate information into connection-trace messages. Eventually, cell-drop information from each of the relevant switches may reach the source of the trace. This information may then be accessed through a Management Information Base (MIB) or via command-line interface commands. This automates and improves the speed of identifying non-performing switches.

Abstract: Presenting system and device conditions and purchasing options for components compatible with hardware devices of a computer system. In one aspect, an operating system determines the identity of a hardware device in communication with the operating system, communicates over a network to receive current purchasing information related to the hardware device, and displays components that can be selected for purchase and used with the hardware device. Another aspect provides a selectable user interface control for display in a graphical user interface that indicates a new operating condition of the computer system, different from a prior operating condition, by displaying a different appearance of the control. One embodiment has a new operating condition occurring when a component of a hardware device is within a predetermined threshold of requiring replacement, refilling, or supplementation.

Abstract: Online purchasing of components compatible with particular hardware devices of a computer system. In one aspect, the identity of a hardware device capable of communicating with computer systems is automatically determined. At least one component for the hardware device is displayed on a computer system based on the identity of the hardware device such that the user can select the at least one component for purchase, where the at least one component is compatible with and for use with the hardware device.

Abstract: A reaction-based process has been developed for the selective removal of carbon dioxide (CO2) from a multicomponent gas mixture to provide a gaseous stream depleted in CO2 compared to the inlet CO2 concentration in the stream. The proposed process effects the separation of CO2 from a mixture of gases (such as flue gas/fuel gas) by its reaction with metal oxides (such as calcium oxide). The Calcium based Reaction Separation for CO2 (CaRS-CO2) process consists of contacting a CO2 laden gas with calcium oxide (CaO) in a reactor such that CaO captures the CO2 by the formation of calcium carbonate (CaCO3). Once “spent”, CaCO3 is regenerated by its calcination leading to the formation of fresh CaO sorbent and the evolution of a concentrated stream of CO2. The “regenerated” CaO is then recycled for the further capture of more CO2. This carbonation-calcination cycle forms the basis of the CaRS-CO2 process.

Abstract: A reaction-based process has been developed for the selective removal of carbon dioxide (CO2) from a multicomponent gas mixture to provide a gaseous stream depleted in CO2 compared to the inlet CO2 concentration in the stream. The proposed process effects the separation of CO2 from a mixture of gases (such as flue gas/fuel gas) by its reaction with metal oxides (such as calcium oxide). The Calcium based Reaction Separation for CO2 (CaRS—CO2) process consists of contacting a CO2 laden gas with calcium oxide (CaO) in a reactor such that CaO captures the CO2 by the formation of calcium carbonate (CaCO3). Once “spent”, CaCO3 is regenerated by its calcination leading to the formation of fresh CaO sorbent and the evolution of a concentrated stream of CO2. The “regenerated” CaO is then recycled for the further capture of more CO2. This carbonation-calcination cycle forms the basis of the CaRS—CO2 process.

Abstract: A reaction-based process has been developed for the selective removal of carbon dioxide (CO2) from a multicomponent gas mixture to provide a gaseous stream depleted in CO2 compared to the inlet CO2 concentration in the stream. The proposed process effects the separation of CO2 from a mixture of gases (such as flue gas/fuel gas) by its reaction with metal oxides (such as calcium oxide). The Calcium based Reaction Separation for CO2 (CaRS-CO2) process consists of contacting a CO2 laden gas with calcium oxide (CaO) in a reactor such that CaO captures the CO2 by the formation of calcium carbonate (CaCO3). Once “spent”, CaCO3 is regenerated by its calcination leading to the formation of fresh CaO sorbent and the evolution of a concentrated stream of CO2. The “regenerated” CaO is then recycled for the further capture of more CO2. This carbonation-calcination cycle forms the basis of the CaRS-CO2 process.

Abstract: For a spar type floating platform having risers passing vertically through the center well of a spar hull, there is provided apparatus for supporting the risers from a gimbaled table supported above the top of the spar hull. The table flexibly is supported by a plurality of non-linear springs attached to the top of the spar hull. The non-linear springs compliantly constrain the table rotationally so that the table is allowed a limited degree of rotational movement with respect to the spar hull in response to wind and current induced environmental loads. Larger capacity non-linear springs are located near the center of the table for supporting the majority of the riser tension, and smaller capacity non-linear springs are located near the perimeter of the table for controlling the rotational stiffness of the table. The riser support table comprises a grid of interconnected beams having openings therebetween through which the risers pass.

Abstract: The present invention is a method and system for incrementally maintaining a database having at least one materialized view based on at least one table. When changes to the table are received, a change table based on the received changes is generated. The generated change table is propagated upwards to form a higher-level change table and the materialized view is updated by applying the higher-level change table to the materialized view using a refresh operation. In one aspect, the change table includes a plurality of tuples representing the changes and the materialized view includes a plurality of tuples. The refresh operation has two parameters, a join condition and an update function specification. The materialized view is updated by finding all tuples in the materialized view that match the tuple in the change table, using the join condition, for each tuple in the change table and updating each found tuple in the materialized view by performing operations indicated by the update function specification.

Abstract: For a spar type floating platform having risers passing vertically through the center well of a spar hull, there is provided apparatus for supporting the risers from a gimbaled table supported above the top of the spar hull. The table flexibly is supported by a plurality of non-linear springs attached to the top of the spar hull. The non-linear springs compliantly constrain the table rotationally so that the table is allowed a limited degree of rotational movement with respect to the spar hull in response to wind and current induced environmental loads. Larger capacity non-linear springs are located near the center of the table for supporting the majority of the riser tension, and smaller capacity non-linear springs are located near the perimeter of the table for controlling the rotational stiffness of the table. The riser support table comprises a grid of interconnected beams having openings therebetween through which the risers pass.

Abstract: For a spar type floating platform having risers passing vertically through the center well of a spar hull, there is provided apparatus for supporting the risers from a gimbaled table supported above the top of the spar hull. The table flexibly is supported by a plurality of non-linear springs attached to the top of the spar hull. The non-linear springs compliantly constrain the table rotationally so that the table is allowed a limited degree of rotational movement with respect to the spar hull in response to wind and current induced environmental loads. Larger capacity non-linear springs are located near the center of the table for supporting the majority of the riser tension, and smaller capacity non-linear springs are located near the perimeter of the table for controlling the rotational stiffness of the table. The riser support table comprises a grid of interconnected beams having openings therebetween through which the risers pass.

Abstract: Economical NOx reduction from the flue gas is essential for the long-term profitability and existence of fossil fuel based thermal power plants. The proposed process describes the application of activated carbonaceous materials for the post-combustion control of nitric oxide (NOx) emissions from flue gas. Integral experiments were carried out on a variety of carbonaceous species such as graphite, activated carbons and coal char. A selectivity parameter (g carbon consumed/g NO reduced) has been used as a basis for quantifying the effect of the various parameters such as oxygen concentration, alkali impregnation and temperature of reaction on the carbon-NO selectivity. The reaction between pure structured carbon (graphite) required very high temperature. The reaction rate with char and activated carbon was determined to be higher compared to the rate with graphite. The reaction temperature was significantly reduced by the impregnation of carbons with alkali metals.