Abstract: A system for operating a combustor includes a sensor that measures an operating parameter associated with the combustor and generates a signal reflective of the operating parameter. The operating parameter is reflective of an ash deposition rate or an accumulated ash buildup. A controller receives the signal, compares the signal to a predetermined limit, and generates a control signal. A method for operating a combustor includes operating the combustor at a first power level that produces a first temperature that is less than or equal to a first predetermined temperature and creating a layer of ash. The method further includes measuring an operating parameter reflective of an ash deposition rate or an accumulated ash buildup, comparing the operating parameter to a limit, and operating the combustor at a second power level that produces a second temperature that is greater than or equal to the first predetermined temperature.

Abstract: Gas turbine firing temperature optimization based on a measured sulfur content of a fuel supply of the gas turbine system is provided. In one embodiment, a system includes a diagnostic system configured to determine a maximum firing temperature for a combustor of a gas turbine system. The diagnostic system may determine the maximum firing temperature based on a predetermined sulfur content to maximum firing temperature correlation and an actual sulfur content of a fuel supplied to the combustor. The diagnostic system may also be configured to provide an indicator for a change in an actual firing temperature in the combustor of the gas turbine system. The diagnostic system may provide the indicator in response to the determined maximum firing temperature differing from the actual firing temperature of the combustor of the gas turbine system.

Abstract: The present invention provides a system and method for facilitating and monitoring provisioning of wireless communication devices. Wireless devices are provided to an end user in an unconfigured state, capable of being configured for operation using one or more communication protocols. Upon receipt and validation of a provisioning request by the wireless device, for example by a server, the wireless device is securely provisioned for operation with a wireless service provider. Provisioning activities are monitored and information is generated in response to provisioning events, for example via a database. Portions of the information are made available to one or more wireless service providers or parties providing enabling technology of the wireless device. Such reports may be used to facilitate revenue agreements between various parties involved in providing and servicing the wireless device.

Abstract: A method and system for auctioning or sales of deliverable items via the Internet permit customers to purchase or bid on items. Delivery of the item is first scheduled to a first bidder or purchaser and then in response to a second bidder or purchaser's bid or purchase, may be rescheduled for delivery to the second bidder or purchaser. A replacement item may be offered to a losing bidder and in the case of a purchase, may be automatically scheduled for delivery to a purchaser whose item has been re-scheduled for delivery to another.

Abstract: A supercharging system for a gas turbine system is provided supercharging system having a fan mechanically coupled to the turbine shaft of the turbine system. A bypass subsystem is provided or optionally conveying a portion of the airstream output to other uses. The supercharging system may also be used in conjunction with a combined cycle power system and a bypass subsystem optionally conveys a portion of the airstream output to a heat recovery steam generator.

Abstract: A method and system for auctioning or sales of deliverable items via the Internet permit customers to purchase or bid on items. Delivery of the item is first scheduled to a first bidder or purchaser and then in response to a second bidder or purchaser's bid or purchase, may be rescheduled for delivery to the second bidder or purchaser. A replacement item may be offered to a losing bidder and in the case of a purchase, may be automatically scheduled for delivery to a purchaser whose item has been re-scheduled for delivery to another.

Abstract: Apparatus (1) for determining a property of a sample. The apparatus has a chamber (11, 13) for receiving at least a part of the sample and contains a rotor (15) adapted to rotate within the chamber (11, 13). The apparatus (1) also has a space (17) between the rotor (15) and the chamber (11, 13) which may be at least partially occupied by the sample, driving means (14) for rotating the rotor (15), and a detector (39) arranged to detect the rate of rotation of the rotor (15). The apparatus may also have two parts, a sample strip (5) for receiving the sample and a receiving member (3) for receiving the sample strip (5) and carrying out measurements on the sample. The rotor (15) may be magnetised across its diameter. The driving means (14) may be a magnetic driving means. The sample may be a blood sample. The property to be determined by the sample may be the prothrombin time of the blood or plasma.

Abstract: A gas turbine includes a compressor, a combustor downstream from the compressor and a heat transfer system, wherein the heat transfer system receives a compressed working fluid from the compressor. A fluid coupling between the heat transfer system and the combustor, wherein the fluid coupling receives the compressed working fluid from the heat transfer system. A conditioner in fluid communication with the compressor and a fluid coupling between the heat transfer system and the conditioner, wherein the fluid coupling receives a cooling media from the heat transfer system. A method for operating the gas turbine includes flowing a compressed working fluid from the compressor to the heat transfer system, transferring heat energy from the compressed working fluid to the heat transfer system, flowing the compressed working fluid from the heat transfer system to a combustor, and flowing a cooling media from the heat transfer system to a compressor inlet.

Abstract: An assay apparatus having an assay strip. The assay strip has a first area with a plurality of magnetic particles bonded thereto. The assay strip also has a microfluidic (or nanofluidic) channel or chamber, having a sensing area including one or more magnetic particle traps and a magnetic field source provided adjacent to the sensing area. Introduction of a fluid causes the magnetic particles to become attached to or displaced by a substance of interest, travel along the microfluidic channel to the sensing area and become concentrated in the one or more traps thus providing an indication of the presence or absence of a substance of interest in the fluid. There may be a plurality of traps.

Abstract: A method of monitoring the condition of a flexible pipeline comprising the step of scanning the pipeline with an ultrasonic scanner to produce and/or record a signal indicative or the level of flooding within the annulus of the pipeline and/or indicative of the integrity of the layers of the pipeline.

Abstract: A system for operating a combustor includes a sensor that measures an operating parameter associated with the combustor and generates a signal reflective of the operating parameter. The operating parameter is reflective of an ash deposition rate or an accumulated ash buildup. A controller receives the signal, compares the signal to a predetermined limit, and generates a control signal. A method for operating a combustor includes operating the combustor at a first power level that produces a first temperature that is less than or equal to a first predetermined temperature and creating a layer of ash. The method further includes measuring an operating parameter reflective of an ash deposition rate or an accumulated ash buildup, comparing the operating parameter to a limit, and operating the combustor at a second power level that produces a second temperature that is greater than or equal to the first predetermined temperature.

Abstract: A flame-holding control method in a gas turbine having a combustor can and a fuel nozzle disposed in the combustor can. The method can include performing a first scheduled injection of a diluent stream into the nozzle, checking to see if a time period has exceeded a time threshold and in response to the time period being greater than that the time threshold, performing a second scheduled injection of the diluent stream into the nozzle.

Abstract: Example embodiments of methods and apparatus for challenging an online user. In an example embodiment, a method includes receiving, at an online service provider, a request from a user to access one or more features of an online service running on a host server and also receiving an indication of a geography associated with the user. The example method further includes sending, to the user, information associated with the indicated geography in combination with information not associated with the indicated geography and a request that the user select the information associated with the indicated geography from the combined information or select the information not associated with the indicated geography from the combined information. The example method still further includes receiving, at the online service provider, a selection from the user and, in the event the selection correctly corresponds with the request, allowing the user access to the one or more features.

Abstract: A combined cycle power plant includes a first compressor that produces a compressed working fluid and a turbine downstream of the first compressor. The turbine includes stationary components and rotating components and produces an exhaust. A heat exchanger downstream of the turbine receives the exhaust from the turbine, and a second compressor downstream of the heat exchanger and upstream of the turbine receives the exhaust from the heat exchanger and provides a flow of exhaust to the turbine. A method for reducing oxygen emissions from a gas turbine includes flowing an exhaust from a turbine to a heat exchanger and removing heat from the exhaust. The method further includes increasing the pressure of the exhaust to produce a pressurized exhaust and flowing the pressurized exhaust back to the turbine to remove heat from the turbine.

Abstract: A device comprising a first and a second housing body and a display. The display has a first and a second display portion which are hingably connected to each other. Each display portion has a front face. The first housing body is hingably connected to the first display portion and hingably connected to the second housing body and the second housing body is hingably connected to the second display portion. And the device is configured to assume an open position and a closed position. The front faces of the display portions are arranged adjacent and facing each other in the closed position.