Abstract: A fuel system for use in supplying fuel to an injection nozzle is disclosed. The system comprises a fuel pump arranged to charge first and second accumulators, and control valve means operable to select which of the first and second accumulators is used to supply fuel to the nozzle. The system further comprises valve means interposed between the fuel pump and the second accumulator, the valve means being operable to permit fuel to flow from the fuel pump to the second accumulator once the fuel pressure within the first accumulator has attained a predetermined value.

Abstract: The semiconductor device includes in a semiconductor substrate (1) at least one predetermined region (6) of the substrate intended subsequently to form an active area, uncovered on its upper surface and situated between lateral trenches (7) containing an insulative material including a layer (9) of a planarising first oxide and at least one underlying layer (8) of a conformal second oxide. The insulative material can form on either side of said uncovered predetermined region (6) of the substrate a boss (16) on the plane upper surface of the device (D) less than 1000 .ANG. high.

Abstract: The sequential-access asynchronous memory device comprises an asynchronous double-port random access memory (MVDP), a write address generator (CE) for delivering to the input port of the memory, in response to write enable signals (ATE), successive write address information (ADE) respectively associated with successive data (DE) to be stored sequentially in a predetermined order of writing, a read address generator (CL) for delivering to the output port of the memory, in response to read enable signals (ATL), successive read address information (ADL) respectively associated with successive data (DL) to be read sequentially in a predetermined order of reading, a device for detecting the stability of the address information delivered by the address generators, and a device (GAE, GAL, ST1, ST2) for determining the level of fill of the memory from the stable address information delivered by the address generators.

Abstract: The invention relates to a heterodyne receiver, preferably for multichannel reception, especially for the reception of optical signals, in which the received signal is mixed with an oscillator signal of an oscillator in a mixing stage, to generate an intermediate frequency in an intermediate frequency stage (IF stage). According to the invention, the frequency (f.sub.LO) of the oscillator is tuneable discontinuously in jumps (Sp1, Sp2), and the intermediate frequency stage is tuneable continuously.

Abstract: Improved process for parallel operation of several computation units, especially in image processing, and corresponding architecture.

Abstract: An artificial lens which specifically simulates the human eye in its mechanical properties. It is possible to produce the lens directly from a peptide mixture. The lens can be either homogeneous or multilayered in structure.

Abstract: Compositions and methods for prevention of adhesion formation, whereby an effective amount of one or more adhesion preventing RGD-containing peptides is administered for a period of time sufficient to permit tissue repair. The RGD-containing peptide is further characterized in that it inhibits platelet aggregation and does not induce inflammation or trauma at the site of administration. The RGD-containing peptide is preferably administered in conjunction with a delivery vehicle (e.g., microcapsules, microspheres, liposomes, viscous instillates and absorbable mechanical barriers) useful for maintaining local concentrations of the peptide at an effective level.

Abstract: In order to increase the implantation energy of an ion implanter of the medium-current type, a microwave generator, having a traveling-wave tube generating an electromagnetic field with a frequency greater than or equal to 6 GHz, is arranged in the implanter; the initial ion source of the implanter is replaced by an electron cyclotron resonance multiply-charged ion source (3) including a waveguide-forming plasma cavity (21) whose characteristic dimension (D), in the transverse plane of the cavity, is of the same order of magnitude as the wavelength of the electromagnetic field; the microwave generator (60) and the plasma cavity (21) of the multiply-charged ion source are electromagnetically coupled; a complex gaseous medium, compatible with the beam of ions desired, is admitted into the plasma cavity and the inlet flow rate of the gaseous medium is adjusted so as to maintain a residual vacuum in the plasma cavity which is less than a pressure threshold compatible with the production of multiply-charged ions;

Abstract: A stand-alone electric lamp which includes a base and a general area light source affixed an opposite end of one of a pair of stems to provide general area lighting. Disposed on the stems intermediate the base and the general area light source is a support member in the form of an elongated plate. The other of the stems terminates at the plate. Extending from the plate is an arm which has attached to its end a light source for providing task lighting directable to specific areas. The arm has a pair of flexible sections disposed therein to allow the task light to be adjustable to direct the light therefrom to the desired area.

Abstract: A frame-structured bus system, particularly for a local operation network for automotive applications, is disclosed in which a plurality of bus stations share a data bus, and in which one of the bus stations generates a sequence of data frames of constant bit length. Each data frame includes an isochronous frame module and an asynchronous frame module, and the division of each data frame into the isochronous and asynchronous frame modules is dynamically variable. The message transmitted by a station is passed through a central star coupler to all stations.

Abstract: A method of producing a choline having a high purity without containing by-products by using a molecule-inclusion complex of the choline as a starting material. A choline inclusion complex without containing by-products is obtained by reacting an aqueous solution of the choline containing, as by-products, those cholines to which are added ethylene oxides with host molecules such as of 1,1'-bis-.beta.-naphthol, and is further reacted with a carbon dioxide gas in order to obtain an aqueous solution of a choline carbonate and/or a choline bicarbonate of a high purity, which is then subjected to the electrolysis using a cation-exchange membrane as a diaphragm, in order to obtain an aqueous solution of the choline of a high purity without containing by-products. The choline that is obtained is a strongly basic compound having a high purity and is very useful as a photoresist-developing solution.

Abstract: A flexible medical packaging unit designed as a bag (14) including a single connector (18) containing a powdered salt concentrate (16), i.e. bicarbonate, with a volume sufficient for one dialysis treatment. The bag (14) has such a capacity that the powdered salt concentrate (16) will only partially be dissolved even when completely filled with water.

Abstract: Organoselenones of the formulaR.sub.1 --Se(O.sub.2)--(CH.sub.2).sub.n --Xwherein R.sub.1 is selected from the group consisting of aryl, vinyl, acetylenyl, and aralkyl, n is an integer equal to 2 to 6 and X is a leaving group selected from the group consisting of halides, sulfonates and selenones; were surprisingly found to be useful as alkylating agents which possessed a high degree of selectivity for nitrogen nucleophiles without the usual increased preference for sulfur nucleophiles. This property allows the effective use of these compounds as anti-cancer alkylating agents suitable for use in drug-resistant cell lines which display either thiol mediated drug resistance or MER(+)-mediated drug resistance. Two methods of synthesizing these compounds are also provided.

Abstract: A game is played by building a tower of bricks in multiple levels, and players alternately removing a brick from one level and adding it to the top of the tower to build new levels, until collapse of the tower occurs. Bricks of a variety of different types are provided with each type having different physical characteristics, such as shape, size, surface configuration and/or coefficient of friction. At least two adjacent layers of the initial tower are formed from bricks of different types.

Abstract: Compositions and methods for treating a patient infected with a metazoan parasite by inhibiting the enzymatic action of the metazoan parasite protease. The compositions comprise at least one metazoan protease inhibitor which binds to the S2 subsite and at least one of the S1 and S1' subsites of the metazoan parasite protease. The methods comprise administration to a patient infected with a metazoan parasite of at least one metazoan protease inhibitor in an amount effective to inhibit the protease of the metazoan parasite, thereby killing the parasite.

Abstract: A newly-blended one part system heat-resistant epoxy resin composition which exhibits excellent stability at room temperature, quickly undergoes the curing reaction, molded within short periods of time, and, after cured, exhibits excellent Tg, resistance against the water, resistance against degradation by heat, and a variety of excellent properties in combination. The heat-resistant epoxy resin composition having excellent stability at room temperature comprises an epoxy compound having two or more epoxy groups, a curing agent which comprises a naphthalenedicarboxylic dihydrazide as a main component, and a ceramic whisker as a filler.

Abstract: A portable heat exchange unit for cooling a medium including a vessel adapted to contain a discrete quantity of a compressed or liquefied gas wherein the vessel includes a wall arranged to be placed in contact with the medium to be cooled, a valve for operatively controlling the release of the gas from the vessel, a panel positioned adjacent and inside the wall of the vessel for operatively directing the gas into heat exchange contact with the wall of the vessel and arranged to release gas from the top of the panel, and a means for exhausting the gas from the vessel. The panel has ridges thereon and engages the wall so as to form a plurality of channels between the ridges and the wall.

Abstract: Compositions useful for making lightweight roof tiles. The compositions comprise in percent by weight: between about 2.0 to 4.1 latex (solids basis), between about 20.0 to 28.0 cement, between about 28.0 to 55.0 lightweight aggregate, between about 9.0 to 15.0 water, between about 5.0 to 35.0 standard weight aggregate such as sand, between about 0.0 to 8.0 filler such as limestone, and between 0.0 to 1.5 accelerating additive such as calcium chloride. Methods for making the compositions e.g. into lightweight roof tiles, are also disclosed.

Abstract: The semiconductor device comprises in a semiconductor substrate (1) at least one predetermined region (6) of the substrate intended subsequently to form an active area, uncovered on its upper surface and situated between the lateral trenches (7) containing an insulative material including at least one layer of a conformal oxide, the insulative material forming on either side of said uncovered predetermined region of the substrate a boss (16) on the plane upper surface of the device. The height of the boss is less than 1 000 .ANG. and the insulative material can also include planarising oxide.