Abstract: The present invention relates to an improved array of flow directing elements for incorporation in turbomachinery. In accordance with the present invention, an array of flow directing elements comprises a plurality of flow directing elements mounted to a rotor disk. The plurality of flow directing elements includes a first set of first flow directing elements whose natural vibration frequency has been modified by having material removed from a leading edge tip region and a second set of second flow directing elements whose natural vibration frequency has been modified by having material removed from a midspan leading edge region. The array may further comprise unmodified flow directing elements arranged with the modified flow directing elements.

Abstract: The present invention relates to a process for inspecting a part to detect defects in the part. The process comprises the steps of placing a part to be inspected in an immersion tank, introducing a mixture of a penetrant dye and a supercritical carbon dioxide solvent into the immersion tank, maintaining the part immersed in the mixture for a time sufficient for the penetrant dye to penetrate any defects in the part, removing the part from the immersion tank, and inspecting the part for the presence of any defects. A system for carrying out the process is also described.

Abstract: The present invention relates to a feedback controlled stripping system with integrated water management and acid recycling system. The system comprises a stripping tank containing an electrolyte bath stripping solution for removing a coating from at least one workpiece immersed in the stripping solution while a controlled absolute electrical potential is maintained on the at least one workpiece with respect to a reference electrode also immersed in the stripping solution, a rinse tank for rinsing the workpiece(s) after removal of the workpiece(s) from the stripping tank, and a distillation unit for receiving electrolyte containing dissolved metals from the stripping tank, for purifying the electrolyte received from the stripping tank, and for returning the purified electrolyte to the stripping tank. In a preferred embodiment, the stripping tank, the rinse tank, and the distillation unit are mounted to a skid. The system further includes a control module.

Abstract: A bearing support for a rotor of an aircraft turbine engine includes a frangible linkage designed to enable the engine to safely shut down despite the introduction of an excessive unbalance to the fan stage.

Abstract: The present disclosure describes a process and an apparatus for delivery of plastic at a viscosity and in the required quantity suitable for compression molding of large, and often odd shaped three-dimensional products, such as large automotive body parts and large appliance parts, etc. These products may consist of plastic only, or may require additional layers of other plastics or even other materials such as woven cloth, inserted into the cavity before molding. The purpose of this invention is to provide a process and apparatus for use with a compression molding machine to supply plastic to a mold cavity, at a number of suitable locations, and in appropriate quantity at each location as required by product shape and thickness. The apparatus and process includes a delivery head which is mounted on rails attached to the machine clamp or the mold cavity, and a connection between the injection unit of the molding machine.

Abstract: Method and device for measuring the transmission quality in cells of mobile radio networks in which, using a mobile station (MS) comprising a GPS receiver, the cell to be measured is travelled through, and the geographic position and the time are recorded at specified intervals. The signals transmitted from a base transmission station (BTS) to the mobile station as well as a call build-up signal sent at certain intervals, are stored with the GPS position. Furthermore, signals between the base transmission station and the respective mobile station, which signals are sent at specified intervals, are recorded with time stamps by means of a mobile radio analysis device (MA). Subsequently there is a mixing together of the recorded data of the mobile station with the recorded data of the mobile radio analysis device, sorted according to time stamp, with the measured results issued by geographic position and by time.

Abstract: A ball-mark repair tool, includes a housing having a longitudinal slot and an open end; a repair tool having an operative end and being slidably positioned in the housing for sliding along a path between a withdrawn position and an extending position, the operative end extending from the open end of said housing in the extending position; a latch member associated with the repair tool for sliding along the path with the repair tool and extending through said slot for manually moving the repair tool, the latch member further being positionable, when the repair tool is in the extending position, between a latching position wherein the repair tool is held in the extending position and a released position wherein the repair tool can be moved along the path to said withdrawn position.

Abstract: The test facility tests whether the services subscribed to by a user in a subscribed network are also available in a visited network. Because the network functions and services should be tested in the same way as a customer actually uses them, they preferably have to be tested from the subscriber network interfaces. The subscriber network interfaces are especially important at the air interface and at the switched network for conventional analogue and ISDN telephone services (Integrated Services Digital Network). However, for special tests internal interfaces of a GSM network (Global System for Mobile Communication) are also of significance such as the A-Interface at the Mobile Switching Center (MSC) of a GSM network.

Abstract: A nozzle arrangement for laser beam cutting, having a nozzle body surrounding a focused laser beam and with a passage opening for the laser beam, and having a nozzle sleeve which surrounds the nozzle body and forms with the nozzle body an annular gap which on the one hand has an inlet for a gas, and on the other hand has an annular opening assigned to the passage openings, wherein there is provided in the annular gap a nozzle-like constriction whose width is increased upstream and downstream of the constriction.

Abstract: A rotor for a screw rotor machine includes a shaft and a plurality of lobes disposed on the shaft, each of the lobes extending radially outward from the shaft and having a tip surface, a rear surface and a transition section disposed between the tip surface and the rear surface, the transition section having an arcuate portion, a middle portion and a short radius portion, the arcuate portion being concave in shape so as to open away from the shaft and transition the tip surface into the middle portion.

Abstract: A mattress is provided with a plurality of inflatable cushion elements each having two cushion chambers. Air or filling pressure medium can be regulated by a device with a pump. The pump is coupled to a control in which filling pressure values and/or arithmetical operations are programmed. The pump is also provided with sensors. This enables the filling pressure to be increased or reduced on the basis of the weight of a lying person loading the cushion elements until a predetermined value corresponding to a specific degree of hardness or comfort for lying is attained. Simple pressure on a key on a remote control is therefore sufficient to bring about completely automatic adaptation to the lying person, regardless of whether he or she weighs 40 or 150 kg. This intelligent mattress offers an absolute maximum of individual comfort for lying with a minimum of effort for operation.

Abstract: The present invention relates to a sigma-delta analog-to-digital converter using a mixed mode integrator composed of an analog integrator and a digital integrator, which can prevent the performance degradation due to the saturation of an integrator of the overload of a quantizer. A sigma-delta analog-to-digital converter having an anti-aliasing filter, a sample and hold circuit, a sigma-delta modulator and a decimation filter comprises an overload estimating unit for judging the saturation or overload of an analog integrator; a mixed mode integrator which has the analog integrator and a digital integrator composed of a digital adder and a digital storing unit and integrates the output of the overload estimating unit in analog or digitally; and a quantization unit for converting the output of the mixed mode integrator to a digital signal.

Abstract: An improved motion vector detecting method is provided that can ensure a wide search area while suppressing detection of erroneous motion vectors at the same time. Specifically, when detecting motion vectors from a first and a second image frame, the method divides the second image frame into blocks, classifies the blocks into a first and a second group such that the mutually adjacent blocks belong to the different groups. The method specifies a motion vector candidate for each of the blocks in the first and second groups, then performs the process of updating the motion vector candidate by studying an average of the motion vector candidates of the adjacent blocks for each of the blocks in the first and second groups. The process is repeated for a certain time.

Abstract: A method of attaining depilation by laser beam more effectively by enabling a laser beam the output of which is repressed to an extent of avoiding exertion of an effect on the peripheral tissue to reach a depth in the approximate range of 5-6 mm from the surface of the skin. The method of depilation attains required depilation by pulling out the skin of a subject and compressing the drawn skin thereby transforming part of the skin into a flap and emitting a laser beam to the region of the skin transformed into the flap.

Abstract: In a pitch shifting method, an input sound signal is stored into a memory, and a period of the input sound signal is extracted. Then, a sawtooth wave is produced whose amplitude is set to a value which is integer times the extracted period. A read address is designated based on the sawtooth wave, and the input sound signal is read from the memory using the designated read address.

Abstract: A nuclear fuel spacer grid, fabricated by intersecting a plurality of zircaloy or inconel grid strips and used for placing and supporting a plurality of elongated fuel rods within a nuclear fuel assembly, is disclosed. In the spacer grid of this invention, each of the grid strips is not cut away to form separate springs or dimples for supporting the fuel rods, but has an axial slot extending from one end of each strip to a length. The grid strips are intersected at the slots prior to being welded together into a single grid structure at a welding tap formed at an outside end or a middle portion of each of the slots. Each of the grid strips also has a dipper-shaped coolant mixing vane, or a dipper vane, at each of the upper and lower ends thereof. The spacer grid thus maximizes the thermal hydraulic coolant mixing effect within a fuel assembly and stably supports the fuel rods within the assembly while improving the mechanical/structural strength of the assembly, such as a buckling strength.

Abstract: A method and device for simultaneous compensation of five existing components of deviation from the ideal linear motion of solid unit moving hydro (air) static slides and using five independent flow control valves whose valves connections to the recesses and commutations between recesses are made in such a way that every valve is responsible for compensation only for one component of deviation.

Abstract: The present invention relates to a polyurethane compound which has particular utility as a potting compound for fan exit guide vane assemblies of commercial gas turbine engines. The polyurethane compound comprises a formulation of polyurethane prepolymers mixed with an aromatic amine curing agent (hardener) in a volumetric mix ratio in the range of from about 0.9:1 to about 1:1. The polyurethane prepolymer consists of a blend of different polyethers based on diphenylmethane diisocyanate (MDI). The amine curing agent is a blend of oligomeric diamines with an aromatic diamine with a catalytic component. Both of the blends, in an uncured state, are liquid at room temperature.

Abstract: An arrangement for absorption of the energy of impact for road or rail bound vehicles contains an elongated insert (6)—in the form of a rigid lever or as part of a lever of length r and featuring two end faces (10, 11), the first end face (10) being attached to the long side of a section component (3) and the second face (11) coupled via a collision component (12) to an impact area (9) projecting out from the section component (3) in such a manner that a force of impact acting on the impact area (9), while displacing the collision component (12) in the direction of the force of impact, effects a rotational movement (D) of the insert (6) about a predetermined point of rotation (P) in the section component (3) and local bending of the section component (3) at the point of rotation (P).