Abstract: A piston ring with improved wear properties has a running surface, an upper ring flank, a lower ring flank, and an inner surface. The piston ring has a radius R, and wherein in a radial section, a running surface contour includes an upper region, a central region, and a lower region. The upper region of the running surface contour has a curvature radius Ro, which lies between the ring radius R and infinity. The central region of the running surface contour has a curvature radius Rm, which lies between the ring radius R and infinity. The lower region has a curvature radius Ru, which is smaller than the ring radius R.

Abstract: A piston ring is provided, in particular a compression piston ring having at least one recess with a lower edge running obliquely to the upper piston ring flank on its upper piston ring flank, the ring flank extending radially outward from the piston ring interior and radially inward from the piston ring bearing surface. The piston ring has a chamfer, which is opposite at least one recess. At least one recess and the chamfer extend in the radial direction up to at most the center of the cross-sectional area of the piston ring.

Abstract: A play-free oil scraper ring has a cross section with a running surface leg having at least one scraper web that is situated on a running surface, an upper piston ring flank leg that is connected to the running surface leg, and the upper surface of which forms an upper piston ring flank. A lower piston ring flank leg is likewise connected to the running surface leg, the lower surface of which forms a lower piston ring flank. The upper and/or the lower piston ring flank leg are/is elastic, taper(s) inwardly in the radial direction, and their/its piston ring flank(s) essentially form(s) a conical surface in an uninstalled state. The uninstalled piston ring has an axial height that exceeds a width of a piston ring groove for which the piston ring is intended.

Abstract: There is provided a contactless power system, power receiver and method of operating such, in which the power receiver of the system is configured to receive power transmitted by a power transmitter of the system via contactless electromagnetic coupling of respective receiving and transmitting coils. The power receiver further has circuitry for reflecting a unique magnetic signal to the transmitting coil of the power transmitter upon receipt of a power pulse by the receiver coil of the power receiver.

Abstract: A system and method of browsing electronic catalogs from a plurality of merchants. The electronic catalog system emulates the portability and usability of a traditional paper and ink catalog, especially when realized on a tablet or mobile device. Product data feeds from multiple merchants are collected and processed to build a product database. A server retrieves product data and serves it to users browsing the electronic catalogs. Users can request more detailed information and order products through the server and merchant websites. Users communicate with the server and merchant websites either through a standalone software application or via a standard web browser. Merchants are able to update the contents of their electronic catalogs through a merchant portal.

Abstract: The present invention relates to a cylinder liner with a covering layer, and a wear-resistant inner layer, arranged inside of the cylinder liner, wherein a thickness of the wear-resistant inner layer, decreases on at least one axial end of the cylinder liner.

Abstract: A piston ring (2) having increased fatigue resistance includes a plastically deformable material. The piston ring (2) has a running face (4), which is delimited at the top by an upper running face edge (3) and at the bottom by a lower running face edge (1). Compressive stresses are introduced into the upper running face edge (3) and/or into the lower running face edge (1) along at least one part of the circumference, the compressive stresses having been produced by roller burnishing.

Abstract: A system and method of browsing electronic catalogs from a plurality of merchants. The electronic catalog system emulates the portability and usability of a traditional paper and ink catalog, especially when realized on a tablet or mobile device. Product data feeds from multiple merchants are collected and processed to build a product database. A server retrieves product data and serves it to users browsing the electronic catalogs. Users can request more detailed information and order products through the server and merchant websites. Users communicate with the server and merchant websites either through a standalone software application or via a standard web browser. Merchants are able to update the contents of their electronic catalogs through a merchant portal.

Abstract: A piston ring (2) having increased fatigue resistance includes a plastically deformable material. The piston ring (2) has a running face (4), which is delimited at the top by an upper running face edge (3) and at the bottom by a lower running face edge (1). Compressive stresses are introduced into the upper running face edge (3) and/or into the lower running face edge (1) along at least one part of the circumference, the compressive stresses having been produced by roller burnishing.

Abstract: The present invention relates to a cylinder liner with a covering layer, and a wear-resistant inner layer, arranged inside of the cylinder liner, wherein a thickness of the wear-resistant inner layer, decreases on at least one axial end of the cylinder liner.

Abstract: A system and method of browsing electronic catalogs from a plurality of merchants. The electronic catalog system emulates the portability and usability of a traditional paper and ink catalog, especially when realized on a tablet or mobile device. Product data feeds from multiple merchants are collected and processed to build a product database. A server retrieves product data and serves it to users browsing the electronic catalogs. Users can request more detailed information and order products through the server and merchant websites. Users communicate with the server and merchant websites either through a standalone software application or via a standard web browser. Merchants are able to update the contents of their electronic catalogs through a merchant portal.

Abstract: A method and apparatus are provided to allow co-verification of hardware and software elements asynchronously from a programmable logic device (PLD).

Abstract: Methods and apparatus are provided for automatically generating instruction sequences for verifying the operation of a processor, such as a central processing unit, a processor core, a graphics accelerator, or a digital signal processor. The instruction sequences can also be used to verify the operation of tools associated with implementing a processor. Test parameters are used to combine test fragments to generate test instructions. Check instructions are also provided to immediately identify faults encountered during operation.

Abstract: An apparatus for transmitting acoustic ultrasonic pulses and for receiving "echos" of the transmitted pulses, comprises a housing, an upstanding wall mounted on the housing defining the mouth of a well, and a transducer mounted in the housing so that the operative part of the transducer is located in the well. The well is substantially watertight and is provided with a jet for introducing water or other fluids to the well, or is pre-filled with fluid.

Abstract: The present invention relates to a target having conductive fibres in a plurality of beds into which a transmitting/receiving projectile may be embedded with a portion of the projectile remaining protruding from the target. Each bed indicates a score and is electronically insulated from the other. In some embodiments the separate scoring portions of the target transmit different signals with the signal from the projectile embedded in that portion of the target being radiated at a greater strength. The strongest signal (indicative of the portion of the target struck) is received by a nearby receiver and the score displayed. An alternative embodiment utilizes an externally transmitted signal and the projectile acts as a receiving antenna, conveying the signal to only that target bed in which the projectile is embedded and the individual beds are connected to the scoring display system.