Abstract: The invention relates generally to a process of analyzing and visualizing the expression of biomarkers in individual cells wherein the cells are examined to develop patterns of expression by using a grouping algorithm, and a system to perform and display the analysis

Abstract: Methods and compositions using unprocessed (i.e., not deliberately or intentionally cleaved, circularized, or supercoiled) rolling circle amplification (RCA) product.

Abstract: A bushing assembly for a turbine vane includes a bushing and a housing. The bushing includes a bore for receiving a trunnion of the vane, a first electrical contact carried on an outer surface thereof, and a first conductor extending from the first electrical contact. The first electrical contact is adapted to be connected to a heater element disposed on the vane. The housing is positioned over the bushing and rotatable relative to the bushing. The housing includes a second electrical contact disposed in contact with the first electrical contact and a second conductor extending from the second electrical contact for connection to an electrical power source.

Abstract: A bushing assembly for a turbine vane includes a bushing, housing, and a flexible conductor. The bushing includes a bore for receiving a trunnion of the vane and a first conductor extending from the bushing. The first conductor is adapted to be connected to a heater element disposed on the vane. The housing is positioned over the, and the bushing is rotatable relative to the housing. The housing includes a second conductor extending from the housing for connection to an electrical power source.

Abstract: A method for laser shock peening an article includes laser shock peening the article forming at least one pre-stressed region having deep compressive residual stresses imparted by the laser shock peening and machining a feature into article in the pre-stressed region after the laser shock peening. The feature may be machined entirely in the pre-stressed region. The pre-stressed region may extend completely between oppositely spaced apart sides of the article with the feature machined entirely through the pre-stressed region and completely between and through the spaced apart outer and inner sides. The feature may be a hole or a scallop. The article may be an arcuate wall having a radius of curvature and the feature includes a centerline and is machined into wall with the centerline substantially parallel to the radius of curvature. The hole or scallop may have a curved sharp edge.

Abstract: A real time method for quality control testing of a laser shock peening process of production workpieces by analysis of natural frequency shifts during the laser shock peening process. One particular embodiment includes laser shock peening surface of the production workpiece by firing a plurality of laser beam pulses on the surface and forming a plurality of corresponding plasmas, each one of the plasmas pulses having a duration in which the plasma causes a region having deep compressive residual stresses to form beneath the surface, measuring at least one natural frequency of the workpiece for each of the laser beam pulses, calculating natural frequency shifts from a baseline natural frequency for the measured natural frequencies for at least a portion of the laser beam pulses, and using the natural frequency shifts for accepting or rejecting the workpiece with respect to pass or fail criteria.

Abstract: A real time method for quality control testing of a laser shock peening process of production workpieces by analysis of natural frequency shifts during the laser shock peening process. One particular embodiment includes laser shock peening surface of the production workpiece by firing a plurality of laser beam pulses on the surface and forming a plurality of corresponding plasmas, each one of the plasmas pulses having a duration in which the plasma causes a region having deep compressive residual stresses to form beneath the surface, measuring at least one natural frequency of the workpiece for each of the laser beam pulses, calculating natural frequency shifts from a baseline natural frequency for the measured natural frequencies for at least a portion of the laser beam pulses, and using the natural frequency shifts for accepting or rejecting the workpiece with respect to pass or fail criteria.

Abstract: A method for chemical milling of a gas turbine engine blisk having a hub and a plurality of blades made of metal for the purpose of changing the dimensional characteristics (i.e., chord and/or thickness) of one or more of these blades. At least one blade of the blisk is treated with a chemical etchant of the metal that the blade is made of for a period of time sufficient to change at least one of the chord and thickness of the blade(s). In a preferred aspect of this method, at least one of the blades of a rotationally imbalanced blisk is treated with the chemical etchant for a period of time sufficient to change the chord and/or thickness of these blades so that the blisk is rotationally balanced. In another preferred aspect of this method, an assessment of where and the degree to which the rotational imbalance exists in the blisk is made to determine which blades are to be treated with the chemical etchant and how those blades are to be treated to achieve rotational balance of the blisk.

Abstract: A method for chemical milling of a gas turbine engine blisk having a hub and a plurality of blades made of metal for the purpose of changing the dimensional characteristics (i.e., chord and/or thickness) of one or more of these blades. At least one blade of the blisk is treated with a chemical etchant of the metal that the blade is made of for a period of time sufficient to change at least one of the chord and thickness of the blade(s). In a preferred aspect of this method, at least one of the blades of a rotationally imbalanced blisk is treated with the chemical etchant for a period of time sufficient to change the chord and/or thickness of these blades so that the blisk is rotationally balanced.

Abstract: A blisk includes a disk having a rim from which extends a row of blades. The rim includes axially opposite overhangs one of which includes an arcuate balance land disposed eccentrically to the centerline axis of the disk for balancing the blisk.

Abstract: A sealing member for sealing between static members, for example between static members of a gas turbine engine. The seal includes a first annular sealing member which includes a first sealing portion and a flange portion. The first sealing member seals a passageway between static members. The flange portion clamps around a flange of a static member, and also seals a portion of circumferential gaps. The first sealing member cooperates with a second sealing member to seal a passageway. Attached to another leg of the flange portion is a ring.