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30results about How to "Determine efficiency" patented technology

Ultrasonic oil/water tank level monitor having wireless transmission means

An ultrasonic monitor to measure the level of a fluid (e.g., oil or water) within a storage tank. The ultrasonic monitor is surrounded by a gas-tight, explosion-proof casing that is coupled to the top of the tank so that the acoustic axis of a (e.g., 59 KHz) ultrasonic transducer is directed downwardly towards the surface of the fluid. The ultrasonic transducer is encased within a protective (e.g., Delrin) housing so as to resist the hostile (e.g., acidic, gaseous vapors and extreme temperature) conditions within the tank. A main CPU is interconnected between the ultrasonic transducer and an RF transceiver having an antenna from which fluid level data calculated by the main CPU can be transmitted over a wireless communication path. A reference rod having at least one acoustic reflector located at a known distance therealong extends downwardly from the housing of the ultrasonic transducer towards the surface of the fluid. The main CPU is responsive to the time of flight between incident signals generated by the acoustic transducer and return and echo signals reflected off the surface of the fluid and the acoustic reflector for calculating the corresponding distance between the fluid and the transducer. The main CPU is adapted to adjust the time of flight to compensate for errors introduced by the environment (e.g, gas vapors, pressure, etc.) of the tank depending upon the echo signal that is reflected to the acoustic transducer by the reflector of the reference rod.
Owner:OLEUMTECH CORP

Method and apparatus for analyzing a golf stroke

A method of analyzing and practicing golf strokes, such as putting strokes, is provided. A surface is provided, wherein a golfer can practice one or more strokes in an environment simulating components of a golf course, such as a green. A club movement detector embedded in the surface and comprising a plurality of photodetectors and associated circuitry determines the position and velocity of the club face A head movement sensor detects rotational movement of the golfer's head during the golf stroke. An eye movement sensor detects movement of the eyes of the golfer during the golf stroke. A processor connected to the club movement sensor, eye movement sensor, and head movements sensor gathers movement data during the golf stroke and produces measurements corresponding to the golf stroke, such as eye, head, and club movement of the golfer. The invention includes measuring head movement data and wirelessly transmitting same for remote analysis during a golf stroke. Club head movement is sensed by an infrared ranger placed along a line perpendicular to the face of the clubhead. Eye, head, and club movement data can be combined into one or more serialized data streams, and transmitted wirelessly over one or more RF channels for remote reception and processing. Finger, wrist, and elbow movements can also be measured and analyzed during a golf stroke or a free throw setting.
Owner:RUTGERS THE STATE UNIV

Ultrasonic oil/water tank level monitor having wireless transmission means

An ultrasonic monitor to measure the level of a fluid (e.g., oil or water) within a storage tank. The ultrasonic monitor is surrounded by a gas-tight, explosion-proof casing that is coupled to the top of the tank so that the acoustic axis of a (e.g., 59 KHz) ultrasonic transducer is directed downwardly towards the surface of the fluid. The ultrasonic transducer is encased within a protective (e.g., Delrin) housing so as to resist the hostile (e.g., acidic, gaseous vapors and extreme temperature) conditions within the tank. A main CPU is interconnected between the ultrasonic transducer and an RF transceiver having an antenna from which fluid level data calculated by the main CPU can be transmitted over a wireless communication path. A reference rod having at least one acoustic reflector located at a known distance therealong extends downwardly from the housing of the ultrasonic transducer towards the surface of the fluid. The main CPU is responsive to the time of flight between incident signals generated by the acoustic transducer and return and echo signals reflected off the surface of the fluid and the acoustic reflector for calculating the corresponding distance between the fluid and the transducer. The main CPU is adapted to adjust the time of flight to compensate for errors introduced by the environment (e.g, gas vapors, pressure, etc.) of the tank depending upon the echo signal that is reflected to the acoustic transducer by the reflector of the reference rod.
Owner:OLEUMTECH CORP

Three-stage XML (X Extensible Markup Language) twig matching algorithm based on version trees

InactiveCN102214178AImprove scalabilitySmall input sizeSpecial data processing applicationsVersion treeFiltration
The invention relates to a three-stage XML (X Extensible Markup Language) twig matching algorithm Twig3Version based on version trees, comprising the execution process which can be divided into three stages: the stage 1, structural matching: a proposed XML twig matching algorithm (TwigStack) executable on an original document is utilized to execute the structural matching of query twigs on a compressed index structure (version tree) in order to obtain sub-trees of all the version trees satisfying query twig structure constraint; the stage 2, version filtration: version numbers which do not satisfy the query twig structure constraint in the matched sub-trees returned in the stage 1 are filtered through the version numbers; and the stage 3, merger connection: the final matching twig is obtained by merging XML document elements corresponding to the version numbers returned in the stage 2. The algorithm utilizes the advantages of a simplified version tree structure, TwigStack algorithm and TJFast algorithm in a comprehensive way, and structural matching is executed on the simplified version trees and an efficient and simple version filtration module is executed on a simplified intermediate result, so the performance of a query algorithm is greatly enhanced. Extracting useful information from XML, which is a data form used extensively day by day, becomes an unavoidable problem. The method in the invention can help users rapidly extract user-interested information from a larger number of XML data sources.
Owner:姚美玲
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