Abstract: A hot water circuit (50) supplies water to a plurality of rooms (20) in a building from a central water source (22). Each room (20) has dispenser (24) and an air conditioner (28) and a liquid heat exchanger (38). The air conditioner (28) includes a condenser (30) that abuts the liquid heat exchanger (38) for warming the water from the central water source (22). When too much water is heated, some returns to the central water source (22). Some water is cooled by a dissipating heat exchanger (76, 74) disposed on a heated water return line (70). The return line (70) is connected to the central water source (22). An auxiliary system (84) runs through the dissipating heat exchanger (76, 74) to cool the water in the return line (70).

Abstract: Disclosed is a method and device for protecting an aircraft comprising at least one wing-mounted engine arranged on each of its wings against at least one of a low-energy situation and a high-energy situation during flight in which at least one engine is a failed engine. A control unit is triggered to activate a protection function, as a function of the number and position of failed engines. The control unit controls at least one non-failed engine, and the protection function is activated when activation conditions are met. The activation conditions indicate that the aircraft is either in the low-energy situation such that the total current power of the aircraft is less than a predetermined minimum power or that the aircraft is in the high-energy situation such that the total current power of the aircraft is greater than a predetermined maximum total power.

Abstract: A monotube shock absorber assembly includes a housing (20), a gas cup (32) slidably disposed in the interior (28) of the housing (20), and a piston (42) slidably disposed in the interior (28) of the housing (20) to define an oil compression chamber (48) between the piston (42) and the gas cup (32). A cushion (58) engages one of the piston (42) and the gas cup (32) and extends axially into the oil compression chamber (48) for intermittent contact with the other of the piston (42) and the gas cup (32). The cushion (58) is a resilient material and deforms in response to the cushion (58) contacting the other of the piston (42) and the gas cup (32). In a preferred embodiment, the cushion (58) defines a central opening (60) for decreasing the axial stiffness of the cushion (58) and engages the gas cup (32) for intermittent contact with the piston (42).

Abstract: The invention relates to a method and device for determining a reliable position of an aircraft. The device (1) includes means (3, 10) for determining different aircraft position values and means (8, 16, 18) for deducing a reliable position therefrom, using coherence tests and a consolidation method.

Abstract: Disclosed is a method and device for automatically protecting an aircraft against a hard landing. A measuring unit measures current vertical speed and current relative height of the aircraft. A first command generating unit generates first commands to act on the vertical speed of the aircraft by determining an intermediate command from the measured vertical speed and height and converting the intermediate command into turn angles. A speed calculation unit applies the first commands to control surfaces. The first commands are generated from the measured current vertical speed and height, taking into account a predetermined reference vertical speed, such that the aircraft touches down on the ground at a vertical speed not greater than the predetermined reference vertical speed.

Abstract: The amplitude control circuit of the present invention can reduce output noise and suppress a decrease in reception sensitivity. An amplitude control section (120), which is an amplitude control circuit, is provided with: a DA converter (121) that converts amplitude data into differential amplitude signals and outputs the differential amplitude signals; a level control section (122) that controls the levels of the differential amplitude signals according to transmission power information P; and an offset calculating section (123) that assigns the DC voltage based upon transmission power information P to the differential amplitude signals subjected to level control in the level control section (122).

Abstract: The invention relates to a plain bearing composite material with a supporting layer made of a copper alloy, and with a lining applied to the bearing metal layer. The copper alloy can contain 0.5-5% by weight of nickel, 0.2 to 2.5% by weight of silicon and=0.1% by weight of lead. The lining can be a sputtered layer that is applied without an intermediate layer. The invention also relates to methods for producing this composite material.

Abstract: The present invention relates to an exhaust system having a riser adapted to be mounted to the exhaust inlet of a marine engine and a turndown connected to the riser. The riser and turndown define a primary exhaust passage to direct exhaust gases downwardly toward the discharge opening. A secondary passage, a tube, is integrated to the turndown within the primary exhaust passage. An O2 sensor is mounted within the tube. The tube has a diameter that is less than the diameter of the primary exhaust passage. With the diameter being less, the exhaust gases in the secondary passage have a pressure that is greater than in the primary exhaust passage which eliminates or at least reduces the ability for water to enter the secondary passage protecting the O2 sensor from damage.

Abstract: It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups and between same sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold values (Xth1(m)) and (Xth2(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether ¦r/N?rb/Nb¦=Xth1(m) is satisfied in a step (ST106), judging whether ¦r/N?rb/Nb¦=Xth2(m) is satisfied in a step (ST107), including Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST108); if both judgments are positive, and allocating the sequence group (rb) to the same cell in a step (ST113).

Abstract: The invention relates to a steel material having a high silicon content, and to a method for the production thereof, the steel material being particularly suitable for piston rings and cylinder sleeves. In addition to iron and production-related impurities, the steel material contains 0.5 to 1.2 wt. % carbon, 3.0 to 15.0 wt. % silicon and 0.5 to 4.5 wt. % nickel. Also, the steel material can contain small amounts of the following elements Mo, Mn, Al, Co Nb, Ti, V, Sn, Mg, B, Te Ta La, Bi, Zr, Sb, Ca, Sr, Cer, rare earth metals and nucleating agents such as NiMg, MiSiMg, FeMg and FeSIMg. due to the high Si content, a degree of saturation higher than 1.0 is attained, with the melting temperature of the steel material corresponding to normal cast iron. The steel material can be produced according to a conventional cast-iron technique and has a high resistance to wear and tear and a high structural strength (minimal distortion).

Abstract: A wireless communication device (1) comprises a spatially-multiplexed PSC extracting section (8) for extracting a spatially multiplexed known pilot subcarrier signal (S5) from the received multicarrier-modulated signal, a reference signal generating section (7) for generating a reference signal (S4) of the spatially-multiplexed pilot subcarrier signal, and a phase compensating section (9) for compensating the phase difference of the received signal (S1) according to the pilot subcarrier signal (S5) extracted by the spatially-multiplexed pilot subcarrier extracting section (8) and the reference signal (S4). Therefore, even if a pilot subcarrier signal is spatially multiplexed and transmitted, phase difference detection and phase compensation can be performed by a simple constitution.

Abstract: In a method for manufacturing a wrap-around tube from at lest one strip-shaped material, the wrapping is brought about by at least one rotating wrapping element which is indirectly or directly in engagement with the wrap-around tube, and the strip-shaped material is wrapped onto a stationary wrapping core. An apparatus for manufacturing a wrap-around tube from at least one strip-shaped material is distinguished by the fact that it has a rotating wrapping element, which is indirectly or directly in engagement with the wrap-around tube, and a stationary wrapping core, onto which the at least one strip-shaped material is wrapped.

Abstract: An alkaline hydrolysis unit, and method of using the same to dispose of a cadaver, the alkaline hydrolysis unit comprising: a chamber for receiving a cadaver to be chemically decomposed, the chamber including a head-receiving part intended to receive the head of a cadaver; a recirculation pump fluidly connected to the chamber of the alkaline hydrolysis unit and adapted to recirculate fluids within the chamber; a head retaining means locatable in the chamber for retaining the head of the cadaver in the head-receiving part of the chamber; and at least one recirculation jet fluidly connected to the recirculation pump and positioned to aim fluid from the recirculation pump at the head-receiving part of the chamber.

Abstract: A spark ignition device and method of construction is provided. The device includes a ceramic insulator and a metal shell surrounding at least a portion of the ceramic insulator. The metal shell extends along a central axis between an upper terminal end and a lower fastening end. The fastening end has a pair of projections diametrically opposite one another extending axially to free ends. A center electrode assembly is received at least in part in the ceramic insulator. In addition, the device includes an elongate ground electrode having opposite sides extending along a length of the ground electrode between opposite ends. The ground electrode has opposite faces with a sparking surface attached to one of the faces, wherein the face with the sparking surface attached thereto is sunk axially into the free ends of the projections with at least a portion of the opposite sides being surrounded by the projections.

Abstract: A mold assembly for forming a piston and method of molding a piston therewith includes a pair of mold halves moveable toward and away from one another along a linear path that is substantially perpendicular to a longitudinal central axis of the piston between an engaged position to provide at least a portion of a mold cavity for forming an outer periphery of the piston and a disengaged position to allow extraction of the piston from the mold cavity. The assembly also has a pair of cooling gallery mandrels moveable along a linear path into an engaged position between the pair of mold halves to form an undercut cooling gallery of the piston. The pair of cooling gallery mandrels are movable to a disengaged position to allow extraction of the piston vertically along the axis.

Abstract: A radial shaft seal assembly includes an outer case having an axially extending cylindrical outer rim and an axially extending cylindrical inner rim spaced radially from one another by an annular pocket. A radially extending first leg connects the outer rim to the inner rim and a second leg extends radially inwardly from the inner rim to a free end. The assembly includes a wear sleeve having an axially extending cylindrical wall with an outer surface providing a running surface and a flange extending radially outwardly from the running surface. A seal lip extends inwardly from the free end of the second leg into sealing abutment with the running surface. A first porous filter is received in the pocket, and a second porous filter extends in substantial abutment with the outer rim and the second leg of the outer case.

Abstract: A housing part has a sealing surface around the housing part which is to be fastened by means of a seal to another housing part in a sealing manner. At least one fastening opening is provided for the guiding through of fastening elements, in order to seal the housing part on another housing part. At the at least one fastening opening, a ring-shaped projection is arranged which projects over the sealing surface and defines a minimum distance between the sealing surface of the housing part and sealing surface on the other housing part.

Abstract: An OFDM communication apparatus includes a determining section determine a number of known signals for transmission path estimation to be inserted in a transmit signal based on channel quality with respect to a communicating party, and a generating section performs inverse Fourier transform processing on an information signal and the number of known signals for transmission path estimation determined by the determining section and generates a transmit signal for the communicating party. The apparatus achieves both an improvement in demodulated signal error rate characteristics and an improvement in information signal transmission efficiency.

Abstract: The invention provides a light assembly to enable various light functions, such as braking lights, tail lights, license plate lights, flashers, etc., using LEDs that consume low power and have a long service life. The LEDs are located on a single, two-sided printed circuit board (PCB), which reduces the assembly costs and the size of tail light, as well as the complexity of assembly.

Abstract: A piston ring having a base body, which comprises a running surface provided with at least one chamber, an upper and a lower flank surface, and an inner circumferential surface, wherein the running surface is provided with at least one PVD layer such that the same is adjusted to the contour of the running surface without completely filling the chamber, wherein the respective edge region is provided with a layer thickness, b that is reduced compared to the layer thickness, a of the chamber as a function of the configuration of the chamber.