A glass mat reinforced thermoplastic semi-finished sheet material comprising thermoplastic resin and at least two needled continuous and/or chopped glass fibre strand mats is disclosed as well as a method for its manufacturing and its use. Each of said glass mats is needled from the two sides in an asymmetrical way, so that the number of fibre ends protruding from the two major mat surfaces are pr...

An active muffle noise cancellation system having an active controller (60), a speaker housing (41) with acoustic compliance spaces, a duct extension means (42, 43) in communication with said speaker housing and adapted to conform a dipole radiation pattern into a plane wave which can be measured by a microphone means (46).

PCT No. PCT/FR92/00452 Sec. 371 Date Jan. 21, 1993 Sec. 102(e) Date Jan. 21, 1993 PCT Filed May 21, 1992 PCT Pub. No. WO92/20474 PCT Pub. Date Nov. 26, 1992.The apparatus and process according to the invention relate to the cold forming by rolling of revolving parts (7). The apparatus comprises two identical milling wheels (9A, 9B) arranged symmetrically with respect to the part (7) to be formed a...

A Viterbi decoder for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system. The decoder simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder can decode at an unknown data rate in either continuous or framed packet modes. It accomplish...

A method and system for preserving state in computers communicating over networks, such as the World Wide Web (WWW) using stateless protocols, e.g., HTTP. State is preserved in a conversation between a client requesting services from a served by performing the service and identifying all continuations (hyperlinks) in an output from the service; recursively embedding the state information in all id...

A man-machine interface is disclosed which provides force and texture information to sensing body parts. The interface is comprised of a force actuating device that produces a force which is transmitted to a force applying device. The force applying device applies the generated force to a pressure sensing body part. A force sensor on the force applying device measures the actual force applied to t...

A diagnostic system for support of laser ocular surgery, for example, solves a problem of competition for light which is often encountered when a series of different detectors are used to receive and detect features of a target reflecting an illuminating light beam. The intensity of an illuminating beam, particularly in eye surgery, is limited to a level above which damage to the eye can occur. In...

A surface acoustic wave filter apparatus includes a plurality of stages of multi-mode filters defined by edge-reflection type surface acoustic wave devices and electrically connected in series with each other. The plurality of stages of multi-mode filters are provided on a common piezoelectric substrate and arranged in a direction which is substantially perpendicular to the propagation direction o...

PROBLEM TO BE SOLVED: To perform screwing of a tapping screw for a soft metallic material in the screw hole of a work of a soft metallic material by low fastening torque and produce a looseness preventing effect. SOLUTION: A thread stem part 10 having a thread crest angle of 50 deg. is formed at a leg part 3 and a thread guide part 20 paralleling a straight line to continuously interconnect the th...

PCT No. PCT/EP92/02661 Sec. 371 Date May 18, 1994 Sec. 102(e) Date May 18, 1994 PCT Filed Nov. 19, 1992 PCT Pub. No. WO93/11239 PCT Pub. Date Oct. 6, 1993.Novel thrombin-inhibitory proteins from terrestrial leeches of the genus Haemadipsa with the amino-acid sequence Ile-Arg-Phe-Gly-Met-Gly-Lys-Val-Pro-Cys-Pro-Asp-Gly-Glu-Val-Gly-Tyr-Thr-Cys-Asp-Cys-Gly-Glu-Lys-Ile-Cys-Leu-Tyr-Gly-Gln-Ser-Cys-Asn-...

For use in a wireless computer network having a radio relay capable of transmitting messages, a system and method, operable with the radio relay, for selectively repeating a unicast message received from a source end-station only upon some indication that a destination end-station has not received the message. The system includes: (1) a transceiver that receives the unicast message from the source...

PURPOSE:To reduce a space for seal molding, make the molding easier without being cooled from heat softening all through molding and eliminate the deviation of position at the time of seal molding. CONSTITUTION:A plurality of works 4 are fed to a stage S for sealing. A plurality of works 4 are positioned by a positioning plate 5. Then, beam is emitted by a light beam emitter 6 corresponding to res...

Disclosed is a fiber amplifier system including a gain fiber (10) having a single-mode core containing dopant ions capable of producing stimulated emission of light at wavelength lambda s when pumped with light of wavelength lambda p. Absorbing ion filtering means (17) is operatively associated with the gain fiber (10) to alter the gain curve. If the absorbing ions are the same as the gain ions ...

A module for arbitrary configuring/reconfiguring a topology of optical networks, comprising at least one optical switching device connectable to an optical network, and a plurality of network elements connectable to the optical switching device(s). The optical switching device(s) are controllable to selectively connect thereto and disconnect therefrom one or more of the elements for switching them...

Process for the preparation of an oriented and textured magnetic body comprising the stages consisting in: preparing a composition such that after passing through the molten state and solidifying it yields substantially solely the said substance and that, at the melting temperature of this composition, crystallites of the said substance exist, heating slowly in the vicinity of the melting temperat...

A low flammability to non-flammable composite sheet is produced, made of a non-extrudable core of non-combustible particle filler and skins which are bonded to the two sides elastically. In the process, a lower cover band plus an adhesive film are moved in and the core material is distributed over it to form a heap extending over the whole width of the adhesive film; the assembled material is draw...

A hydrothermal process for growing a crystal of MTiOXO4 at an elevated temperature is disclosed which employs a growth medium comprising a mineralizer solution, and is characterized as employing aqeuous mineralizer solution in which the concentration of M is at least about 8 molar, and as employing a growth region temperature of less than about 500 DEG C. and/or a pressure of less than 14,000 psi...

PROBLEM TO BE SOLVED: To provide a wire bonding method capable of surely bonding a ball to a chip at the time of forming the ball at the lower end part of a wire led out downward from a capillary tool by electric sparks and bonding the ball to the chip. SOLUTION: A ball 20 is formed at the lower end part of a wire 15 by generating electric sparks between the wire 15 and a torch 19 after waiting fo...

PROBLEM TO BE SOLVED: To prevent the lowering of the operation ratio of an apparatus caused by its stops. SOLUTION: First and second bonding heads 12, 14 capable of operating independently are provided, and the first and second bonding heads are united so as to be able to drive by ball screws 15, 16 respectively. And the correction of the Y-direction position of each bonding head is performed by a...

DONDE EN EL ESPACIO DE REACCION DE DICHO HORNO ES FUNDIDA UNA MATERIA PRIMA SULFUROSA CONTENIENDO METAL TAL COMO COBRE, NIQUEL O PLOMO, EN PRESENCIA DE UN GAS CONTENIENDO OXIGENO Y UN AGENTE QUE FORMA ESCORIA, CON EL FIN DE QUE EL METAL ESTE EN UNA FORMA VENTAJOSA PARA UN TRATAMIENTO POSTERIOR Y EN DONDE LAS FASES FUNDIDAS SON SEDIMENTADAS SOBRE EL FONDO DEL HORNO DE FUSION, CON EL FIN DE SEPARAR ...