Abstract: A head loading mechanism for a removable cartridge disk drive comprises a support base fixedly mounted in the drive, and a moveable member movably attached to the support base via a pair of elongate flexures. The moveable member has a ramped surface adapted to engage a suspension arm at the distal end of an actuator. A read/write head is mounted on the suspension arm. The moveable member moves upon the flexures in tandem with the actuator as it moves toward and away from the edge of a disk inserted in the drive. The moveable member carries the suspension arm of the actuator to the edge of the disk, at which point the suspension arm can ride up and down the ramped surface of the moveable member in order to load the read/write head onto the surface of the disk and then subsequently to unload the read/write head from the disk.

Abstract: A data processing system has operational management registers containing attributes that are used during an application to optimize operation of the data processing system for energy, time, or costs based on the type of operation being performed by the data processing system. The data processing system can implement a different operation management technique dynamically while the program is active within the data processing system.

Abstract: A fuel heater for use with an engine having a liquid cooling system has an extractor and a heat exchanger. The extractor has a coolant diversion conduit defining a diversion across the coolant flow path and toward the upstream end. The extractor further has a coolant return conduit defining a return opening across the coolant flow path and oriented toward the downstream end. The heat exchanger forms a coolant jacket through which the fuel line is directed. Pipes conduct coolant between the extractor and the heat exchanger.

Abstract: A communications system includes a vector modulator controller receiving a data stream and developing a vector modulator control signal by GMSK waveform synthesis and a transmitter having a vector portion controlled by the vector modulator control signal. The vector modulator controller includes: (1) ROM memory storing a plurality of waveform maps including an alternating map, a constant map, a monotonic sine map, and a monotonic cosine map; (2) a counter coupled to the ROM memory and capable of developing a sequence of ROM addresses; (3) a temporal bit generator responsive to a data stream, the temporal bit generator developing a next bit Nb, a current bit Cb, and a past bit Pb from the data stream; (4) control circuitry to develop a digital waveform signal from selected waveform maps in the ROM memory; and (5) a pair of DACs responsive to the digital waveform signal and operative to output a vector modulator control signal that encodes the data stream.

Abstract: A rotational therapy apparatus is provided for use on a bed having a base frame, a deck coupled to the base frame, a support surface located on the deck, an air handling unit, an electrical communication network, and a rotation control module including a controller coupled to the communication network. The rotational therapy apparatus includes a normally deflated rotation air bladder located between the support surface and the deck. The rotation air bladder remains deflated during normal use of the bed. The rotation air bladder is coupled to the rotation control module for selectively inflating and deflating the rotation air bladder to provide rotational therapy to a body located on the support surface. The apparatus also includes a graphical interactive display coupled to the electrical communication network.

Abstract: A prosthetic heart valve is shown which incorporates a valve body design and leaflet pivot arrangements that minimize turbulence and shear stresses having a tendency to generate thrombosis. A valve body having an axially curved entrance that is smoothly joined to a generally cylindrical body of extended axial length provides excellent fluid flow characteristics when combined with leaflets that can assume orientations perfectly aligned with the downstream flow of blood. By constructing such a pyrocarbon valve body which receives a metal ring at an appropriate location, suture rings that permit the tissue annulus to directly contact the exterior surface of the cylindrical valve body are accommodated.

Abstract: An apparatus and method for evaluating perfusion adjacent a skin surface includes the steps of measuring a reference rate of perfusion of the skin surface, storing the reference rate of perfusion, and applying a positive force to the skin surface. The apparatus and method also includes the steps of measuring a second rate of perfusion adjacent the skin surface after the positive force is applied, and calculating a differential rate of perfusion between the reference rate of perfusion and the second rate of perfusion after positive force is applied to provide an indication of perfusion adjacent the skin surface. The apparatus and method further includes the step of displaying the indication of perfusion.

Abstract: A vertically adjustable chair arm with a rotatable armrest includes an armrest support member extending upwardly from a chair seat and an armrest housing telescoped onto the support member. An armrest pad member is pivotally connected to a top end of the housing. A manually operated ratchet mechanism is engaged between the housing and the support member to releasably retain the housing in a selected vertical position on the support member. A spring ball detent mechanism is engaged between the armrest pad member and the housing and releasably retains the pad member in a selected pivotal position relative to the housing.

Abstract: A surface foot section is provided for a bed which includes a base frame and an articulating deck coupled to the base frame. The articulating deck includes a generally planar foot deck section and is movable from a bed configuration to a chair configuration. A foot section control module is provided to deflate the surface foot section when the articulating deck is in the chair configuration and to inflate the surface foot section when the articulating deck is in the bed configuration. The surface foot section includes a first air bladder configured to collapse in a first direction generally parallel to the foot deck section when the first air bladder is deflated, and a second air bladder located adjacent the first air bladder.

Abstract: Combinatorial libraries of labeled biochemical compounds and methods for producing such combinatorial libraries comprising the steps of producing labeled individual units, combining at least two of the labeled individual units so as to produce a labeled biochemical compound, and repeating this process at least once so as to produce a combinatorial library of labeled biochemical compounds. Also, methods for determining the conformation of a biochemical compound which comprise producing a combinatorial library of labeled biochemical compounds, contacting the combinatorial library of labeled biochemical compounds with a target receptor molecule so that a selected labeled biochemical compound binds to the target receptor molecule, and determining the conformation of the selected labeled biochemical compound when bound to the receptor molecule.

Abstract: An electrically conductive substrate (20) is etched by providing an etchant solution having finely divided, electrically conductive particles (40) mixed therein. The electrically conductive particles (40) are made of a material that is cathodic to the substrate (20) and does not dissolve into the etchant solution, with a preferred such material being graphite. The substrate (20) is placed into the etchant solution having the particles (40) therein so that the particles (40) contact the substrate (20), and etched for a period of time sufficient to remove a desired amount of the substrate material. The substrate (20) may be provided with an apertured mask (24) prior to being placed into the etchant solution.

Abstract: A method and apparatus for using multiple code rates for forward error correction in a cellular digital data radio communication system. Each base station broadcasts a quantity called the power product (PP), which is equal to the base station transmit power, P.sub.BT, multiplied by the power level received at the base station, P.sub.BR. For a mobile unit to determine its appropriate transmit power, P.sub.MT, requires measuring the power received, P.sub.MR, at the mobile unit and performing the following calculation: P.sub.MT ==PP/P.sub.MR. When channel path loss is large, it is possible that the power control calculation will return a value greater than the maximum transmit power capability of the mobile unit. In such a case, the mobile unit selects a lower code rate. Base station receiver sensitivity improves as the code rate decreases, so the result is similar to increasing the transmitter power. In the preferred embodiment, the invention uses 3 different code rates.

Abstract: The metal ion complexing properties exhibited by dicitrate are disclosed as chelating agents for reducing the amounts of metal ions in a substance.

Abstract: A bed including a frame, an articulating deck on the frame having head, seat, and foot deck sections, and a mattress on the deck. The deck foot section and mattress foot portion have a first length when the foot section is in the up position and a second length shorter than said first length when the foot section is in the down position. A first driver varies the length of the deck foot section, and a second driver moves the foot section relative to said seat section between the generally horizontal up position and the generally vertically downwardly extending down position.

Abstract: An apparatus and method for producing strapless bales of highly compressible textile fibers is disclosed, wherein a compressed block of the fibers is ejected and expanded into a flexible bag. The apparatus includes a supply chamber for supplying loose fibers to a tramping chamber which is stationary. A ram assembly repeatedly tramps the fibers to form a compacted fiber mass which is then formed into a compressed fiber block within a stationary compression chamber disposed in fiber transfer relation to the stationary tramping chamber. The compressed fiber block is ejected transverse to the compression chamber through an ejection sleeve about which an oversized flexible bag is fitted. Due to the fact that the bag is of a greater size than the cross section of the ejection sleeve and due to the stretch and flexibility of the bag, the compressible fibers in the compressed fiber block undergo an expansion process wherein the flexible bag is filled with the compressible fibers to form a strapless bale.

Abstract: The present invention relates to compounds of formula I which are 4-hydroxy-benzopyran-2-ones and 4-hydroxy-cycloalkyl?b!pyran-2-ones useful for inhibiting a retrovirus in a mammalian cell infected with said retrovirus. ##STR1## Wherein R.sub.10 and R.sub.

Abstract: An improved solar operated ventilator cover is disclosed for covering an aperture disposed in a horizontal surface. The cover has sidewalls with a cover opening and a top surface with an internal wall extending between the sidewalls and the top wall. An orifice is defined in the internal wall for enabling the flow of air within the cover. An electric motor has a motor shaft with a fan blade positioned proximate the orifice. A photovoltaic cell is connected to the electric motor for rotating the fan blade proximate the orifice to establish the flow of air through the cover opening.

Abstract: A bileaflet heart valve incorporates a pivot arrangement that minimizes resistance to downstream blood flow in the open position yet has prompt response and therefore minimal regurgitation upon flow reversal. A valve body having an axially curved entrance that smoothly joins a generally cylindrical body of extended axial length provides excellent fluid flow characteristics when combined with leaflets that can assume orientations perfectly aligned with the downstream flow of blood. Identical flat leaflets can assume a parallel orientation in the fully open position during downstream blood flow or can assume other low energy positions. Flat ears, which extend laterally from opposite surfaces of the leaflets, interengage with cavities of unique design having upstream and downstream lobes separated by an intermediate throat portion defined by inward and outward fulcrums.