Abstract: A method and apparatus for adaptive mobile station presence verification in a cellular system. Mobile station presence verification is performed only for selected requested handoffs from a first base station to a second base station, where the selected requested handoffs are chosen based on a rate of mobile station presence verifications per requested handoffs from the first base station to the second base station, that is adaptively changed as handoffs occur. In an embodiment of the invention, the rate of mobile station presence verifications per requested handoffs from the first base station to the second base station is adaptively changed based on the rates of unsuccessful verifications per verification attempts and, the rate of unsuccessful handoffs per requested handoff attempts, from the first base station to the second base station.

Abstract: An adjustable hanging sunshade umbrella is provided which comprises a side standard, a transverse arm joined to the side standard in cantilevered fashion, a central rod, support and operation means for a protective covering connected to the central rod, and a position-adjusting device adapted to cause rotation of the central rod relative to the axis of the transverse arm and lock it to the desired inclination of the protective covering.

Abstract: A safety helmet has a hard outer shell having front and rear edges. A bowl-shaped liner with front and rear edges and a peak between the edges is contoured to fit snugly in the shell so that the front and rear edges of the liner are adjacent to the front and rear edges of the shell. The liner has an interior surface contoured generally to fit a wearer's head and a corrugated exterior surface, the tips of the liner corrugations contacting the shell along multiple lines of contact. The corrugations in at least a central zone of the liner adjacent to the peak extend fore and aft between the front and rear edges of the liner such that the corrugations define valleys that are spaced from the shell to provide air passages in the helmet extending from the front of the helmet to an array of through-holes in the liner and to a vent opening in the shell adjacent to the rear edge of the liner. A valve is provided to control air flow through the passages and the through-holes.

Abstract: A fuel cell stack power bus system which includes a plurality of current collectors mounted to the peripheral edge portion of a fuel cell stack end plate. The current collectors form lapped connections with a layered power bus which can be easily positioned to extend from any side of a fuel cell stack and which has improved heat transfer characteristics.

Abstract: Surgical devices such as implants or suture fastenings are assembled from a plurality of discrete components, one of which components includes a heat bondable plastic material for bonding the components together. At least two components are bonded to each other by the applying heat to the heat bondable plastic material of one component. The heat bondable plastic material is preferably a polymeric or composite material suitable for surgical applications and implantation in humans, and may be a biodegradable material. A laser may be used as the heat source. The present invention is advantageously embodied in heat bonded fastenings for sutures or K-wires, in which a variety of different suture anchors are usable, including expandable distal suture anchors.

Abstract: A retrofit method for increasing production capacity of an ammonia plant having a front end including in series primary and secondary reformers and a shift converter for reacting a hydrocarbon feed, steam and air to form a make-up syngas stream comprising hydrogen and nitrogen at about design stoichiometry, and a synthesis loop wherein a recycle syngas stream is combined with the make-up gas to form a syngas feed to ammonia converters. The retrofit involves the installation of an air separation unit to supply oxygen and nitrogen streams. The oxygen is used to enrich air supplied to the secondary reformer and increase the hydrogen content of the make-up gas substantially above the design stoichiometry and capacity. The nitrogen stream is supplied to the synthesis loop to obtain a desired hydrogen to nitrogen ratio in the syngas feed to the ammonia converters and compensate for the excess hydrogen in the make-up gas.

Abstract: Method for separating paper fibers and contaminants for mixtures containing water, fibers, contaminants, paper or cardboard pellets, wherein the mixture is subjected firstly to a screening, secondly to a mashing and then thirdly to a further screening with addition of water, subsequent to which the pulp retained by the screen is evacuated.

Abstract: A chest exerciser has a pneumatic resister (1) of linear motion and a selection of handle (8, 9), attachment (29) and/or anchor means (34, 40, 42) that are positional on opposite ends for direction of selectively push exercise and pull exercise to select muscle groups and to specific muscles in the select muscle groups. The pneumatic resister of linear motion can be a cylindrical pump (6, 7), an accordion bellows pump (4), a variously telescopic bellows pump (5), a resilient pump or other pneumatic pump or combinations of pneumatic pumps. The pneumatic resister of linear motion can be selectively resistant to linear motion by means of flow resisters (2, 3) that can be adjustable of resistance or rate of inflow and outflow of air. Separate inflow and outflow resisters (2, 3) can be provided for adjustment of push and pull exercise. Handle means can be different for different sizes of hands and for different positioning of the pneumatic resister in relation to muscles.

Abstract: The invention comprises a process for selectively oxidizing hydrogen in a mixture with other gaseous materials by contacting the hydrogen containing gas under oxidation conditions with a catalyst comprising a phosphate of a metal wherein the metal is selected from the group consisting of germanium, tin, lead, arsenic, antimony and bismuth.

Abstract: A temperature control device controls the temperature of the contents of a pan-shaped specimen container, in particular for the temperature control of specimen strips by hybridization assays. The specimen container can be set sealingly into a movably supported housing for a water bath.

Abstract: A container (1, 61, 115, 116) has a main unit (2, 62, 116, 161) and at least one additional unit (3, 4, 63, 64, 117, 118, 162) with one side which is open to the main unit (2, 62, 116, 161) whereby each additional unit (3, 4, 63, 64, 117, 118, 162) can be extended from and reeled back into the main unit (2, 62, 116, 161). In accordance with the invention there is one lift device each (44, 45, 49, 50, 107, 108, 109, 110, 111, 124, 137) through which the respective additional unit (3, 4, 63, 64, 117, 118, 162) can be lowered while or after it is extended so that the floor (10, 17, 22, 65, 70, 74, 119, 120, 121) of the main and the additional unit (2, 3, 4, 62, 63, 64, 116, 117, 118, 161, 162) are on the same level and through which the respective additional unit (3, 4, 63, 64, 117, 118, 162) can be lifted before or while it is reeled in so that it can be reeled into the main unit (2, 62, 116, 161).

Abstract: A compound consisting essentially of polylysine conjugated to non-charged residues and recognition signals wherein the free amino functions of said polylysine are substituted with non-charged residues and said recognition signals, which non-charged residues consist of gluconalactone and which recognition signals are at least one member of the group consisting of galactoside, mannoside, fucoside, Lewis.sup.x, Lewis.sup.b, oligomannoside, oligolactosamine saccharides and peptide ANP and said conjugated polylysine contains at least 30% unsubstituted free amino functions and a method of transfecting cultured cells.

Abstract: A method for manufacturing an aluminum alloy conductor for use at ultra low temperature which involves the steps of adding at least one of the metallic and semimetallic effective elements selected from the group consisting of B, Ca, Ce, Ga, Y, Yb and Th, in a total amount of 6 to 200 weight ppm, into a previously prepared molten high purity aluminum having a purity of not less than 99.98 wt % to thereby obtain a molten metal mixture; casting the molten metal mixture to thereby obtain a casting; subjecting the casting to extrusion working at 150.degree. C. to 350.degree. C. in an area reduction ratio of 1:10 to 1:150 whereby an extrusion worked product is formed; and annealing the extrusion worked product at a temperature of 250.degree. C. to 530.degree. C. for 3 to 120 minutes, whereby an aluminum alloy conductor for use at ultra low temperature is obtained.

Abstract: A headrest for motor vehicle seats, comprising a resilient body, a pair of parallel support rods projecting inferiorly from the resilient body, and a pair of tubular guide elements to be rigidly connected to the structure of a seat backrest for receiving the support rods. A rigid protection element is rigidly secured to the tubular guide elements and is to be fitted within the seat backrest to provide a rear shield of the support rods.

Abstract: Valve making apparatus heat seals valve films together, and cools the resulting product web. Valves are preferably formed in two side-by-side serial arrays, with each operation of a valve die forming multiple balloon valves, including a portion of a balloon valve to be completed on a subsequent operation of the sealing die. A tension control and web conveyor are also disclosed.

Abstract: A laminated circuit board comprising a high frequency, low dielectric, and low dissipation factor foam substrate layer and at least one metal cladding layer laminated to the foam substrate layer. The foam substrate layer is formed of a closed-cell polyisocyanurate rigid foam having a closed-cell structure greater than 95%.

Abstract: A continuous process is disclosed for producing a strip of decorated ski coating material from ultra-high molecular weight polyethylene. A 0.5 to 1.5 mm thick strip of ski coating material produced in a screw-type or piston-type extruding machine or by sintering followed by peeling and printed with thermodiffusion dyes continuously runs through a heating zone in which it is uniformly heated up to a temperature above 140.degree. C., so that the crystalline structure of the ultra-high molecular weight polyethylene is partially decomposed and the thermodiffusion dye diffuses into the molten ski coating material without the need for an intermediate carrier.