Abstract: A turbine engine component for use in a small engine application has an airfoil portion having a root portion, a tip portion, a suction side wall, and a pressure side wall. The suction side wall and the pressure side wall have the same thickness. Still further, the turbine engine component has a platform with an internal cooling circuit.

Abstract: A gallium nitride high electron mobility transistor, in which an inner field-plate is disposed between the gate and drain of the high electron mobility transistor, so that an electric field is distributed between gate and drain regions to reduce a peak value and to reduce gate leakage current while maintaining high frequency performance, thus obtaining a high breakdown voltage, reducing the capacitance between the gate and the drain attributable to a shielding effect, and improving linearity and high power and high frequency characteristics through variation in the input voltage of the inner field-plate.

Abstract: A resonant switching power source device is provided which comprises first and second MOS-FETs 1 and 2 connected in series to a DC power source 3, a first transformer 5 which has a first primary winding 5a connected in parallel to first or second MOS-FET 1 or 2 and in series to a first capacitor 4, a first rectifying smoother 10 connected between a secondary winding 5b of first transformer 5 and first output terminals 11, 12, a second transformer 6 which has a primary winding 6a connected in parallel to primary winding 5a of first transformer 5, and a second rectifying smoother 20 and an output-regulatory MOS-FET 41 connected between a secondary winding 6b in second transformer 6 and second DC output terminals 21 and 22 to control peak current flowing through primary windings of transformers 5 and 6 and rectifying smoothers 10 and 20 in secondary sides for improvement in power conversion efficiency and to produce stable DC outputs of desired level from a plurality of output terminals 11, 12, 21 and 22.

Abstract: A screw compressor (20) has a housing having first and second ports along a flow path. A male-lobed rotor has a first rotational axis. A female-lobed rotor has a second rotational axis and is enmeshed with the male-lobed rotor to define a compression path between suction and discharge locations along the flow path. The compressor has a compressor lubrication network having a lubricant outlet port (242) along a low pressure cusp (244). An unloading slide valve element (102) may be along a high pressure cusp (105).

Abstract: A turbine engine component, such as a high pressure turbine blade, has an airfoil portion having a pressure side, a suction side, and a leading edge. A cooling system is provided within the leading edge. The cooling system includes at least one peripheral leading edge cooling channel for creating anti-Coriolis forces in the leading edge of the airfoil portion.

Abstract: Safety Device for a Shooting Mechanism of Double-Action Semi-Automatic Pistols Striker Fired The present application refers to a safety device for a shooting mechanism of semi-automatic guns, more specifically double action semi-automatic pistols striker fired, composed of a trigger support, a trigger body, a hinging axle for the two components, a small spring that acts between them and a trigger bar joined to the body of the trigger, with the addition of a firing pin lock located besides the front part of it and lodged in the breechblock.

Abstract: There is provided a microfluidic device capable of preventing the flow of a fluid from being interrupted by bubbles generated in a micro flow passage. In a microfluidic device 10 wherein a micro flow passage 16 having a substantially constant height is formed for allowing a fluid to flow therein and wherein a narrow portion is formed in a portion of the micro flow passage by forming a columnar portion 12c or the like in the micro flow passage, an extending recessed portion 14c for extending the micro flow passage upwards is formed upstream of the narrow portion, and a plurality of raised portions extending in substantially parallel to longitudinal directions of the micro flow passage are formed on a portion of the bottom face of the micro flow passage facing the extending recessed portion if necessary.

Abstract: A turbine element airfoil has a cooling passageway network with a slot extending from a trailing passageway toward the trailing edge. A number of discrete posts span the slot between pressure and suction sidewall portions. A trailing array of the posts are spaced ahead of an outlet of the slot.

Abstract: A method and a device for further processing of sheets to produce multi-page printed products, several initial sheets (19) are each folded into a folded sheet (20) and subsequently collated one on top of the other such that the fold areas lie at the top and the folded sheets (20) open downwardly. A grooved line (30) is formed in each initial sheet (19) before folding, around which grooved line (30) the initial sheet (19) is subsequently folded, the depth and the width of the grooved line (30) being increased, initial sheet (19) by initial sheet (19), by a predetermined amount.

Abstract: A turbine engine component, such as a turbine blade has an airfoil portion with an airfoil mean line, a pressure side, and a suction side. A first region on the pressure side of the airfoil portion has a first array of cooling microcircuits embedded in a wall forming the pressure side. A second region on the pressure side has a second array of cooling microcircuits embedded in the wall. The first region is located on a first side of the mean line and the second region is located on a second side of the mean line.

Abstract: A high-lift airfoil embodying a combination of loading conventions in a single design specifically to reduce and control total pressure losses that occur in the flow channels between airfoils employed in turbomachinery applications is disclosed herein. The mixed-loading high-lift airfoil designs embody and exhibit the best total profile and secondary loss characteristics possessed by both aft-loaded airfoil and front-loaded airfoil conventions through controlling the development and interaction of boundary layers forming along the surfaces of the airfoils and the endwalls in such applications. The mixed-loading high-lift airfoil may be utilized in both rotating and non-rotating turbomachinery applications.

Abstract: A blade outer air seal (BOAS) casting core has first and second end portions and a plurality of legs. Of these legs, first legs each have: a proximal end joining the first end portion; a main body portion; and a free distal portion. Second legs each have: a proximal end joining the second end portion; a main body portion; and a free distal portion.

Abstract: In a method for manufacturing a combination investment casting core, a plurality of cores are each formed by cutting a metallic sheet to define a first portion and a number of separate second portions linked by the first portion. The second portions are bent out of local alignment with the first portion. The first portions of the cores are assembled and secured to each other.

Abstract: A heat engine, includes at least one Liquid Ring Rotating Casing Compressor (LRRCC) having a fluid inlet and a fluid outlet, a combustion chamber in fluid communication with the output of the LRRCC, and at least one expander having a fluid inlet and a fluid outlet. The fluid inlet communicates with the combustion chamber.

Abstract: The present invention relates generally to an electric non-contact apparatus and method for taking electrocardiograms and, more particularly, to an electric non-contact apparatus and method for taking electrocardiograms, in which an examinee can have an electrocardiogram taken in a comfortable position because the apparatus and method are applied to a chair, a bed or a vehicle seat, which are widely used in daily life, and in which the examinee can unnoticeably have an electrocardiogram taken without being conscious of the taking of the electrocardiogram because the taking of the electrocardiogram is performed on the body of a human wearing clothes without directly contacting the body.

Abstract: A device for the production and/or machining of parts, in particular for the production of stampings, by at least one die which is capable of being put under pressure and/or force, and which has at least one plate and one die element, the die element being supported in the plate against pressure elements via a resilient element.

Abstract: A method of filling the cavity of a tool used for production of a molded part from a melt, especially the cavity of an injection molding machine, wherein the melt is introduced into the cavity under pressure and is subjected to a dwell pressure towards the end or at the end of its flow path. The tool wall temperature is determined at the end of the flow path of the melt and the switching point for switching to the dwell pressure is determined from the increase of the tool wall temperature.

Abstract: An optical sensing device for detecting plural optical features of valuable papers is provided that comprises first and second photocoupers 5 and 6 or 9 and 10 positioned in the vicinity of and on the opposite sides of a passageway 13 for guiding the valuable paper 64. Each of first and second photocouplers 5 and 6 or 9 and 10 has a light emitting element 20, 22, 30, 32 for emitting a light, and a light receiving element 21, 23, 31, 33 for selectively receiving the light from the light emitting element 20 so that each light receiving element 21, 23, 31, 33 can receive lights reflected on and penetrating the valuable paper 64 for detection of multiple optical features from the valuable paper 64.