Patent application number | Description | Published |
20080228718 | SYSTEM AND METHOD FOR MULTI-DIMENSIONAL AGGREGATION OVER LARGE TEXT CORPORA - Systems and methods for multidimensional aggregation. Exemplary embodiments include a method for retrieving data from an inverted list index within a computer system, wherein the index comprises annotated postings, the method including receiving a query in a system, converting the query into a query language, scanning at least one list of postings for data from the query, aggregating the data in the list, thereby resulting in an aggregated list, wherein the aggregating includes recording the occurrence of unique values from the list, mapping the values using a user-provided definition to an alternate value, grouping the values by a user-provided mapping of values to groups, recording and mutating data associated with the unique value in the list, relating the recorded data values with other values in the index and returning the requested data from the aggregated list in a return format. | 09-18-2008 |
20080228743 | SYSTEM AND METHOD FOR MULTI-DIMENSIONAL AGGREGATION OVER LARGE TEXT CORPORA - Systems and methods for multi-dimensional aggregation. Exemplary embodiments include a method for retrieving data from an inverted list index within a computer system, wherein the index comprises annotated postings, the method including receiving a query in a system, converting the query into a query language, scanning at least one list of postings for data from the query, aggregating the data in the list, thereby resulting in an aggregated list, wherein the aggregating includes recording the occurrence of unique values from the list, mapping the values using a user-provided definition to an alternate value, grouping the values by a user-provided mapping of values to groups, recording and mutating data associated with the unique value in the list, relating the recorded data values with other values in the index and returning the requested data from the aggregated list in a return format. | 09-18-2008 |
Patent application number | Description | Published |
20080282653 | System for modifying the atmosphere within an enclosed space and incubator system including the same - System for modifying the chemical composition of atmosphere within an enclosed space and incubator system including such a system. The concentration of oxygen within the enclosed space may be either increased or decreased using an electrochemical device. The concentration of carbon dioxide within the enclosed space may be increased using an electrochemical or chemical device. As necessary, purging of the system with ambient air can be a part of the process of controlling the chemical composition of the atmosphere. The present invention obviates the need to use pressurized gas cylinders to supply atmospheric gases to the enclosed space. | 11-20-2008 |
20100276287 | Multi-gas microsensor assembly - A multi-gas microsensor assembly for simultaneously detecting carbon dioxide and oxygen in real time. According to one embodiment, the assembly comprises a non-conductive, solid substrate. A plurality of sensing electrodes, a single reference electrode, and a single counter electrode are positioned on one side of the non-conductive, solid substrate. In addition, all of the electrodes are in intimate contact with the same side of a solid-polymer electrolyte anion-exchange membrane, the solid polymer electrolyte membrane having at least one gas diffusion opening aligned with each sensing electrode. The sensor is operated in a three-electrode potentiostatic mode, in which a constant potential is maintained between the sensing and reference electrodes, and the current is measured between the sensing and counter electrodes. Control of the electrodes is achieved with a small bi-potentiostat. The design of the bi-potentiostat allows at least two different sensing electrodes to share the same counter and reference electrodes. | 11-04-2010 |
20100330547 | Perfusing an organ with an in situ generated gas - Method and system for organ preservation. According to one aspect, an organ may be preserved by being perfused with an in situ generated preserving gas. The organ may be, for example, a human or porcine pancreas, and perfusion of the pancreas may be anterograde, retrograde, ductal, anterograde/ductal, or retrograde/ductal. The preserving gas used to perfuse the organ may be dissolved in a liquid and then administered to the organ as a gas/liquid solution or may be mixed with one or more other gases and then administered to the organ as a gas/gas mixture. The preserving gas may be, for example, oxygen gas generated in situ using an electrochemical oxygen concentrator. According to another aspect, an organ preservation system may include an electrochemical oxygen concentrator having a water vapor feed, as well as auxiliary equipment to control and measure delivery pressure, flow, temperature and humidity. | 12-30-2010 |
20110005928 | ELECTROCHEMICAL CARBON DIOXIDE SENSOR - A method for the detection of carbon dioxide gas using an electrochemical sensor. The method includes exposing a gas to a sensor, which includes a non-conductive solid substrate and at least one each of a metal oxide sensing electrode, a reference electrode and a counter electrode positioned on the substrate. A solid polymer electrolyte anion-exchange membrane is in intimate contact with the sensing electrode, reference electrode and counter electrode. The method is highly sensitive and selective to carbon dioxide with a very rapid response time. | 01-13-2011 |
20110097678 | Method of heating and heating apparatus - Method of heating and heating apparatus. According to one embodiment, the heating apparatus is designed for warming infusion fluids and includes a pair of catalytic heaters positioned around a cartridge containing the infusion fluid. Each catalytic heater includes a pair of frames jointly defining a cavity. One of the frames per heater is positioned proximate to the cartridge and includes an input port for receiving a liquid solution of methanol. The other frame per heater is positioned distal to the cartridge and includes an input port for receiving oxygen gas and an output port for exhaust gases. A first fluid diffusion medium is positioned within the methanol frame, and a second fluid diffusion medium is positioned within the oxygen frame. Sandwiched between the two diffusion media are a pervaporation membrane facing the first diffusion medium and a porous metal catalyst facing the second diffusion medium. Methanol in liquid form is supplied to the pervaporation membrane, which then transports the methanol in vapor form to the catalyst, where combustion occurs. Heat from the combustion reaction is then conducted through the heater to the cartridge containing the infusion fluid. | 04-28-2011 |
20120103823 | Method for detecting individual oxidant species and halide anions in a sample using differential pulse non-stripping voltammetry - Method for electrochemically detecting different oxidant and halide anion species in a sample. According to one embodiment, the method uses a sensor including a boron-doped diamond working electrode, a platinum mesh counter electrode, a silver/silver chloride reference electrode, a potentiostat coupled to the three electrodes, and a computer coupled to the potentiostat. The sensor measures current resulting from differential pulse non-stripping voltammetry, thereby enabling different oxidants and halide anions from a plurality of such species to be detected by distinct responses. Peaks in the current signal result at characteristic voltages when a species is oxidized to a higher oxidation state, and the concentration of a particular species is determined by the magnitude of the current peak. The sensor response time is rapid and shows high sensitivity and selectivity for oxidants and halide anions. The sensor may be a hand-held or in-line device and may be used in a feedback-control system. | 05-03-2012 |
20120178150 | SYSTEM FOR FLUID PERFUSION OF BIOLOGICAL MATTER COMPRISING TISSUE - System for fluid perfusion of biological matter that includes tissue. According to one embodiment, the system may include a storage container for storing the biological matter, a thermal control device for cooling the contents of the storage container, a gas generator for generating a preserving gas, a fluid conduit coupled to the gas generator and insertable into tissue for delivering the preserving gas to the biological matter, and a process controller for controlling the operation of the gas generator and the thermal control device. The gas generator, in turn, may include an electrochemical oxygen concentrator and/or a water electrolyzer for generating the preserving gas. The system may further include a liquid perfusion system that includes a reservoir of liquid perfusate, a fluid delivery conduit for delivering liquid perfusate from the reservoir to the biological matter, and a fluid draining conduit for draining liquid perfusate from the biological matter. | 07-12-2012 |