Abstract: A system for providing spending information in a locality by foreign visitors using transaction records of financial presentation devices such as credit and debit cards that are presentable to merchants is disclosed. A storage device stores transaction data generated from card transactions. A transaction analysis module executable by a processor generates a filtered set of transaction records that exclude, from the stored data, a set of transactions which are indicative of having been made by long term residents of the locality, rather than by residents of foreign regions, in order to improve the accuracy of true foreign visitors to the locality. For example, the system filters out from the database all transactions of accounts that have made a bill-pay transaction. As another example, the system filters out non face-to-face transactions and all transactions with mail order and catalog merchants, and schools.

Abstract: A system for providing spending information in a locality by foreign visitors using transaction records of financial presentation devices such as credit and debit cards that are presentable to merchants is disclosed. A storage device stores transaction data generated from card transactions. A transaction analysis module executable by a processor generates a filtered set of transaction records that exclude, from the stored data, a set of transactions which are indicative of having been made by long term residents of the locality, rather than by residents of foreign regions, in order to improve the accuracy of true foreign visitors to the locality. For example, the system filters out from the database all transactions of accounts that have made a bill-pay transaction. As another example, the system filters out non face-to-face transactions and all transactions with mail order and catalog merchants, and schools.

Abstract: The present invention relates to a system for detecting aerodynamic instabilities in a jet turbine engine having a pressure transducer mounted in the engine. The pressure transducer, welded to a circuit in signal communication with a controller, is adapted to send measured pressure readings from air in a combustion chamber to the controller. The controller, located in spaced apart relation from the engine, is adapted by software to detect pressure patterns from the pressure signals generated by the transducer that are indicative of a stall or surge. A series of fuel and air valves located with compression and combustion chambers of the engine are in signal communication with the controller. The controller in response to detecting pressure signals indicating a stall or surge is operative to signals in the valves to change the air flow, air angle, fuel flow or speed to reduce the possibility of a stall or surge.

Abstract: The present invention relates to a system for detecting aerodynamic instabilities in a jet turbine engine having a pressure transducer mounted in the engine. The pressure transducer, welded to a circuit in signal communication with a controller, is adapted to send measured pressure readings from air in a combustion chamber to the controller. The controller, located in spaced apart relation from the engine, is adapted by software to detect pressure patterns from the pressure signals generated by the transducer that are indicative of a stall or surge. A series of fuel and air valves located with compression and combustion chambers of the engine are in signal communication with the controller. The controller in response to detecting pressure signals indicating a stall or surge is operative to signals in the valves to change the air flow, air angle, fuel flow or speed to reduce the possibility of a stall or surge.

Abstract: The present invention relates to a system for detecting aerodynamic instabilities in a jet turbine engine having a pressure transducer mounted in the engine. The pressure transducer, welded to a circuit in signal communication with a controller, is adapted to send measured pressure readings from air in a combustion chamber to the controller. The controller, located in spaced apart relation from the engine, is adapted by software to detect pressure patterns from the pressure signals generated by the transducer that are indicative of a stall or surge. A series of fuel and air valves located with compression and combustion chambers of the engine are in signal communication with the controller. The controller in response to detecting pressure signals indicating a stall or surge is operative to signals in the valves to change the air flow, air angle, fuel flow or speed to reduce the possibility of a stall or surge.

Abstract: The present invention relates to a system for detecting aerodynamic instabilities in a jet turbine engine having a pressure transducer mounted in the engine. The pressure transducer, welded to a circuit in signal communication with a controller, is adapted to send measured pressure readings from air in a combustion chamber to the controller. The controller, located in spaced apart relation from the engine, is adapted by software to detect pressure patterns from the pressure signals generated by the transducer that are indicative of a stall or surge. A series of fuel and air valves located with compression and combustion chambers of the engine are in signal communication with the controller. The controller in response to detecting pressure signals indicating a stall or surge is operative to signals in the valves to change the air flow, air angle, fuel flow or speed to reduce the possibility of a stall or surge.