Abstract: A bond layer for use on a silicon based substrate. The bond layer comprises an alloy comprising a refractory metal disilicide/silicon eutectic. The refractory metal disilicide is selected from the group consisting of disilicides of molybdenum, chromium, hafnium, niobium, tantalum, rhenium, titanium, tungsten, uranium, vanadium, yttrium and mixtures thereof. The refractory metal disilicide/silicon eutectic has a melting point of greater than 1300° C.

Abstract: A gas turbine engine rotor stack includes one or more longitudinally outwardly concave spacers. The spacers may provide a longitudinal compression force that increases with rotational speed.

Abstract: A turbine blade tip plenum has means for preferentially directing or diverting cooling air from a cooling passageway network to cool areas subject to extreme heat.

Abstract: A bond layer and a further layer on the bond layer, the bond layer comprising a silicon layer having a dispersion of fibers, wherein at least some of the fibers extend between the bond layer and the further layer. The fibers are formed from a material selected from the group consisting of (1) alumina, (2) yttria, (3) aluminum silicate, (4) silicon carbide, (5) silicon nitride, (6) compounds of rare earth elements, alkaline earth elements, aluminum, silicon, oxygen, yttrium, nitrogen, niobium, tantalum, hafnium, zirconium, carbon and mixtures of (1) thru (6).

Abstract: A drying apparatus for drying articles such as clothing is provided. The drying apparatus includes a chamber for containing articles to be dried and a system for supplying heated dry air at a first temperature to the chamber. The air supplying system comprises an air flow pathway having an evaporator for removing moisture from air exiting the chamber and for decreasing the temperature of the air to below dew point temperature. The air supply system further has a condenser for increasing the temperature of the air exiting the evaporator to the first temperature. The drying apparatus further has a heat pump system having a refrigerant loop which includes a compressor, the condenser, a TEV valve, and the evaporator.

Abstract: A brush seal adapted to restrict a fluid flow through a gap between a first component and a second component, comprising: a body; a brush pack secured to the body; and a passage through the body for introducing a cooling flow to the gap. The passage has a first end that is exposed to the gap and a second end that is not exposed to the gap. The passage discharges a cooling flow to the brush seal, the cooling flow being discrete from the fluid flow.

Abstract: The invention relates to an optical detonator comprising a secondary explosive disposed in a cavity, an optical fiber having one end connected to a source of laser radiation, and a focusing optical interface situated between the other end of the optical fiber and the secondary explosive and adapted to transmit the laser radiation to the secondary explosive. According to the invention, a layer of an ignition powder is disposed in the cavity between the secondary explosive and the focusing optical interface.

Abstract: A device for cleaning liquids, in particular edible oils, by means of a filter in a filter housing, the filter being connected downstream of a pump, and a motor for driving the pump, which has a rotor having a rotor disc with vanes in an immersion housing being provided in a housing, the housing, immersion housing and filter housing together forming a unit which can be at least partially introduced into the liquid which is to be cleaned and removed therefrom.

Abstract: There is provided a cellular phone radio that is capable of utilizing a contactless IC media. A contactless IC media 20b is molded in the form of a coin and interchangeably born by a cellular phone radio 110. The cellular phone radio 110 includes a media holder 111, a radio transceiver circuit having an antenna 112, and a control circuit that conducts the read control and the write control of digital information with respect to both recording regions of a contactless IC media 20b within the media holder 111 and an external contactless IC media 20a, ICC, and also includes a processor that conducts information processing on the basis of the read digital information as occasion demands.

Abstract: A surgical instrument comprising a linear element (1) and an insert or catch (7) that is slidably and releasably arranged in or on the linear element (1). The insert or catch (7) or a guide element (8.1, 8.2) associated therewith is guided relative to the linear element (1) on at least one guide track (11.1, 11.2; 12.1, 12.2). The instrument is further characterized in that a stop (14) can be displaced behind the insert or catch (7) or the guide element (8.2) in or out from the guide track (11.2; 12.2).

Abstract: A method for forming a coolant system for a rocket engine combustion chamber is provided. The method comprises the steps of providing a plurality of tubes formed and shaped into the profile of a nozzle with each of the tubes having a constantly expanding cross section in an upper chamber area, providing an inlet manifold and an exit manifold with a plurality of holes for receiving an end of each tube, inserting a brazing preform into each hole, inserting a first end of each tube into the inlet manifold and a second end of each tube into the outlet manifold so that the first end is surrounded by a first brazing preform and the second end is surrounded by a second brazing preform, and brazing the inlet and outlet manifolds to the tubes. The brazing step forms a series of brazed joints between the tubes and the manifolds. The method further includes the steps of forming a layer of coating material on exposed portions of the tubes and forming a single piece jacket construction around the tubes.

Abstract: There is provided a method for producing a metal/ceramic bonding article wherein a metal member 12 is formed so as to have a predetermined shape by printing a resist 14 in a predetermined region on the metal member 12 to etch the metal member 12 after bonding the metal member 12 to a ceramic member 10. In this method, at least one strip-like non-printed portion 16 having a width of, e.g. 0.01 to 0.5 mm, in which the resist is not printed, is provided in a region inwardly spaced from the outer periphery of the resist 14 by a predetermined distance, e.g. 0.01 to 0.5 mm, to control the etch rate in the outer peripheral portion of the metal member 12. Thus, the width and thickness of a fillet is freely changed. For example, a stepped portion (or a stepped portion and fillet) having a width of 0.05 to 0.5 mm and a thickness of 0.005 to 0.25 mm is formed in the outer peripheral portion of the metal member 12.

Abstract: An apparatus has a body with first and second faces, an inboard surface bounding a central aperture, an outboard perimeter, and an array of bolt holes between the first and second faces. A channel is inboard of the bolt holes and first and second ports communicate with the channel. The apparatus may be used as a cooling flange in a detonative cleaning apparatus.

Abstract: Distributed initiation (e.g., multipoint or continuous) is utilized to obtain constant volume-like combustion performance in a pulse combustion device in the absence of detonation. A number of such devices may be utilized as turbine engine combustors.

Abstract: A microtome includes a knife holding device for a cutting element (16) and a specimen holding device (12). Associated with the specimen holding device (12) for a cutting movement is a first drive device (18) and associated with the specimen holding device (12) or the knife holding device is a second drive device (38) for a feed movement. A sender (20) is associated with the first drive device (18) and is connected with an electronic control means (26). A first operating element (28) controlling the first drive device (18) has a standard mode, in which the cutting movement of the specimen holding device is controlled by rotation of the first operating element (28), and a second mode, in which a continuous cutting function is activated by pressing the first operating element (28). A second operating element (44) controlling the second drive device (38) also has corresponding rotary and pressing modes.

Abstract: A method for carrying out homogenous polymerization reactions in a reactor, wherein monomers and/or prepolymers are fed (apportioned). In a first step, an initiator is optionally admixed with the monomer and/or prepolymer. In a second step, once viscosity is substantially higher, a solvent is added thereto and/or the monomer itself is partially evaporated, it is condensed externally and/or internally and fed back into the reactor.

Abstract: A composite material and method of manufacture involve a mixture of an epoxy resin and a hardener being essentially free of methylenedianiline and vinylcyclohexene dioxide. A fiber reinforcement is located within the matrix. Advantageously, the matrix has a glass transition temperature of at least 250° F. dry, the resin has a pre-hardening mixed viscosity of 500–1500 cP at 75° F., and the composite material has, upon hardening, an interlaminar shear strength of at least 6.5 ksi dry at 75° F. and at least 3.5 ksi dry at 250° F.

Abstract: A data processing structure comprising a plurality of processors ad a data bus for a data communication with a serial data structure. The plurality of processors can be respectively coupled in parallel to the data bus, and a data communication via the data bus with one of the processors, preferably a programming of the processor, is authorized for the same, but is blocked for all of the other processors.

Abstract: A seat system includes two backrests installed so as to pivot around a backrest axis in relation to a floor between a raised position and a folded down position, and a first belt locking buckle installed so as to pivot in order to retract, first connecting system between a first backrest and the first buckle so that the pivoting of the first backrest causes the first buckle to pivot between a high position and a retracted position, a second belt locking buckle aligned with the first buckle in a plane perpendicular to the backrest axis, the second buckle being connected to the second backrest by a second connecting system in such a manner that the first buckle pivots in a first direction when the first backrest is pivoted from the raised position to the retracted position, and the second buckle pivots in a second direction opposite to the first direction when the second backrest is pivoted from the raised position to the folded down position.

Abstract: The present invention relates to a computer implemented process for developing a model which predicts the value of a single dependent variable based on the value of at least one independent variable. The process comprises the steps of creating a dataset containing a plurality of observations each containing a value for the dependent variable and values for the at least one independent variable, creating from the dataset a plurality of original chromosomes each comprising a possible predictive model, developing a quantitative fitness measure for each chromosome, and creating a new generation of chromosomes by selecting a number of the original chromosomes based upon the fitness measures, crossing the selected original chromosomes by at least one of a cloning and a pure (standard) crossover technique, and mutating the crossed chromosomes. A system for carrying out the process of the present invention is also described.