Abstract:
Workpieces are loaded into a cleaning chamber. The cleaning chamber is pressurized with a first dense-phase cleaning fluid, the temperature and pressure of the first dense-phase fluid being maintained at less than about 1500 psi using a temperature control device. The workpieces are soaked in the first dense-phase fluid for a predetermined time period. After soaking, the workpieces are further cleaned by applying a second, localized, high-pressure dense-phase fluid to the surface of the workpieces.
Abstract:
According to one aspect of the invention, a method for servicing a combustor cap assembly of a turbine includes determining a defect is present in a center ring of the cap assembly, the center ring being disposed within a plurality of vanes, removing the center ring from the cap assembly. The method also includes placing a replacement center ring in the cap assembly, wherein dimensions of the replacement center ring are substantially the same as the center ring that has been removed and brazing the replacement center ring to the plurality of vanes.
Abstract:
A lacrimal insert such as a punctal plug may incorporate a balloon or other similar structure to facilitate anchoring of the punctal plug within the lacrimal canaliculus. The balloon may be inflated once it is positioned and deflated if removal is required or desired. The balloon may be affixed to an external portion of the punctal plug or incorporated into a chamber within the punctal plug.
Abstract:
Embodiments of the present disclosure are directed towards a turbine combustor probe having a combustion dynamics monitoring probe configured to monitor combustion dynamics within a turbine combustor. The turbine combustor probe also has a gas sampling sleeve configured to collect a gas sample from an airflow path between a liner and a flow sleeve of the turbine combustor.
Abstract:
Organic photoprecursors of amines are provided for use in photosensitive imaging systems, finding particular application in the preparation of lithographic printing plates. Said photoprecursors generate free amines on exposure to long wavelength UV or visible radiation, have high solubility in organic solvents, and include photolabile 2-nitrobenzyl functional groups. Methods for the synthesis of the photoprecursors are described, and the use of the said photoprecursors for the production of printing plates using both positive working and negative working techniques are discussed.
Abstract:
Low thermal expansion ceramics of essentially 100 percent cordierite solid solution are prepared by the devitrification of a glass frit compact having the nominal composition in weight percent 16 percent MgO, 30 percent Al.sub.2 O.sub.3, 54 percent SiO.sub.2. These ceramics exhibit adequate density and strength and are useful for example in the fabrication of gas turbine engine components such as rotor vanes and heat exchangers.
Abstract translation:基本上100%的堇青石固溶体的低热膨胀陶瓷是通过玻璃料混合物的失透来制备的,该玻璃料坯的重量百分比为16%MgO,30%Al 2 O 3,54%SiO 2。 这些陶瓷表现出足够的密度和强度,并且可用于例如在诸如转子叶片和热交换器的燃气涡轮发动机部件的制造中。
Abstract:
A mixture of from 5% to 95% by weight of calcium tungstate and from 5% to 95% of europium activated barium fluorochloride exhibits brightness and x-ray absorption characteristics superior to that which would be predicted from the foregoing properties of the individual phosphors. Intensifying screens employing the above mixtures have a speed in excess of the commercially available intensifying screens using the present calcium tungstate x-ray phosphors.