Abstract: A device for holding a print with a multi-image and for holding viewing material. An alignment mechanism engages the viewing material for translational and rotational movement relative to the print to achieve correct alignment for a three dimensional effect. The alignment mechanism is held in place so that the viewing material may be lifted from the print and replaced thereon without disturbing correct alignment to facilitate bonding the viewing material to the print.

Abstract: An ac technique for cavity ringdown spectroscopy permits 1×10−10 absorption sensitivity with microwatt light power. Two cavity modes are provided temporally out of phase such that when one mode is decaying, the other mode is rising. When one of the modes probes intra-cavity absorption of a sample gas, heterodyne detection between the two modes reveals dynamic time constants associated with the cavity and the cavity plus intra-cavity absorption. The system and method provides a quick comparison between on-resonance and off-resonance modes and enables sensitivities that approach the shot-noise limit.

Abstract: Fuel Cell Powering system and method minimizing the number of motive drive sources and controlling fuel/air ratios by employing differentials including variable speed mechanisms between compressors and between compressors and expanders; by utilizing flow control devices for separate fluid streams including separate exhaust streams; by utilizing independent compressor/expander chambers; and by injection of water into exhaust streams prior to expansion.

Abstract: A triology of methods to send, receive and execute are provided for JAVA process objects on client and server so that instance variables, rather than objects, can be transferred from/to client and server. In that manner, process objects at the server can be instantiated with instance variables from the client without object transfer. The system enables use of non-JAVA process objects at the server to perform functions at the request of a JAVA client.

Abstract: A Positive Fluid Displacement Device (PFDD) with single piece double-ended pistons connected to a crankpin for circular motion. Pistons are nested together to maintain all pistons in the same plane perpendicular to the axis of the crankshaft. Cylinders are driven in a reciprocating fashion by the pistons and are held loosely in a cylinder carriage along its axis with radial sealing engagement therebetween. Pliable members mount port plates within a housing such that there is no direct contact therebetween or with a two-layer manifold. A flat surface of the port plate is urged against the cylinder head by a pliable member which exerts a force on the center of the port plate. Grooves in the first layer of the manifold are sealed by the second layer to form fluid passageways. The cylinder head is guided in housing grooves with a pliable member. A sealing lip is integral with a piston head.

Abstract: Variable valve timing is provided to control compressors and expanders in a fuel cell powering system in order to provide for matching the displaced volume of the compressor and expander over a range of pressure delivery requirements. A movable timing edge is positioned adjacent inlet and/or discharge ports to cooperate with a movable valve element with inlet and outlet slots to adjust the time and time period of open and close operations. Several embodiments are presented.

Abstract: A virtual socket replaces the usual JAVA physical socket for interprocess communication between two JAVA processes resident on a single system. The virtual socket is created by loading and making use of the standard-in, standard out process associated with the underlying platform so that data, rather than objects, can be passed from one Java process to another.

Abstract: A system and method for time-stamping and signing a digital document by an authenticating party and returning the signed stamped document to the originator or his designated recipient. Messages may be received by a first “public” machine over a network, by fax, or through input mediums such as diskettes. The clock of the first machine is synchronized with Universal Coordinated Time (UTC) and can be checked for accuracy by anyone on the network. A second “private” machine, not connected to any network, receives the time-stamped message, applies a hashing procedure and provides a signature using a private key. The signed hashed time-stamped message is then returned. A verify procedure is made widely available to check the genuiness of a document by rehashing the document and applying a public key. The result should match the signed time-stamped message returned by the authenticating party.

Abstract: A polymorphic modeling method to permutate a model into one of the many alternate model forms. Data can be entered for calculating each model after it is produced. Model permutations employ a permutation process and a permutation control attribute. The permutation control attribute indicates the type of permutation including locked, protected, prompting, interactive, interdependent, single and multiple, polyversion and permutation enabled subroutine. These attributes designate a particular type of permutation behavior assigned to each node in the model. Future node content is included in permutation control by the user or automatically after user designation of initial node content defining an initial model.

Abstract: Fluid displacement apparatus with a set of opposing pistons in traveling chambers and a set of opposing pistons in stationary bores; a second embodiment with all pistons in traveling chambers; a third embodiment with all pistons in stationary bores. In each embodiment the displacement of the pistons can be different and the displacement can be variable. The apparatus is connected to a fuel cell stack to supply compressed gaseous fluid from a portion of the chambers and receive exhaust from the fuel cell stack in other chambers to perform an expander function. The apparatus can also be connected to a fuel cell stack and a reformer to supply compressed gaseous fluid to both and to receive exhaust from both as an expander. The chambers are sized differently to provide a pressure ratio across the fuel cell stack.

Abstract: A Josephson quantizer is driven by a sinusoidal microwave generator whose output is combined with a digital two-level code representing a desired waveform. The result is to produce a bipolar drive signal of increased frequency and a bipolar Josephson output with voltage increased significantly. Output voltage is developed according to the relationship V=Nnmfs/KJ, where N is the number of junctions, n is the Josephson junction constant voltage step number, fs is the sampling frequency, m is an integer multiple of the sampling frequency and is ≧2, and KJ is the Josephson constant. The digital code generator receives the output of an improved modulator which incorporates a three-level to two-level transformation on the output of a standard three-level modulator in one embodiment. In a second embodiment, a modified two-level modulator produces a bit sequence where the polarity of the next bit is allowed to change only if there is an odd number of consecutive bits of the same polarity.

Abstract: A Positive Fluid Displacement Device (PFDD) with a removable Fluid Displacement Module (FDM) having two opposing pistons connected to a drive block. The drive block slides over a crankpin bearing in assembly to provide orbital piston motion. Opposing cylinders are held within a carriage for reciprocating motion. An opening in the reciprocating cylinder head allows fluid communication to the displacement chamber through inlet and outlet ports in a floating port plate. The flat surfaces of the port plate and cylinder head wipe across each other during cylinder head movement. The piston head carries a protrusion sized to fill the cylinder head opening. Micro-adjustment mechanisms for the position of the cylinder head together with compliant piston and compliant cylinder mechanisms can provide near zero dead volume. Different sized opposing cylinders enable the delivery of pumped fluids in precise ratios.

Abstract: A marking system is provided within the comment field of PostScript page files to identify document management data placed therein. A special processor is provided to recognize the signature of document management data so that page characteristic records can be created. The page characteristic records are stored in a database thereby enabling a management system based upon the page characteristic records. The marking system includes a prefix, for example, "%%" and a keyword, for example, "OutputTagElement:", followed by a "tag" which is a management data attribute. The tags are processed to fill data fields in the created page characteristic records.

Abstract: A differential scanning microcalorimeter produced on a silicon chip enables microscopic scanning calorimetry measurements of small samples and thin films. The chip may be fabricated using standard CMOS processes. The microcalorimeter includes a reference zone and a sample zone. The reference and sample zones may be at opposite ends of a suspended platform or may reside on separate platforms. An integrated polysilicon heater provides heat to each zone. A thermopile consisting of a succession of thermocouple junctions generates a voltage representing the temperature difference between the reference and sample zones. Temperature differences between the zones provide information about the chemical reactions and phase transitions that occur in a sample placed in the sample zone.

Abstract: A management system for enabling the creation and maintenance of a database wherein specially created document records, version records and page records are stored. Each page has a page record including the document name, the initial version number in which it is utilized, the last version number in which it is utilized and the date of submission. It also has a delete field to indicate its current status in the document and a field for the date of deletion. The records can include any other desired data upon which it may be desired to search the database and they can include data enabling assembly of the document with inserts, tabs, etc. when it is printed. The page records include a pointer to the location of a corresponding page file for print-on-demand and/or to a storage location for a plate for offset printing.

Abstract: A printing system wherein a first print driver utilizes an Intelligent Printer Data Stream (IPDS) to send a first job at a first font resolution to a printer and a second job at a second font resolution or a second job utilizing a non-IPDS data stream to the printer. A second print driver also utilizing the IPDS data stream is connected to the same printer for sending a third job. By sending a "Manage IPDS Dialog (MID)" IPDS command to the printer upon conclusion of the first job, the printer is enabled to switch immediately to the second job. The printer is enabled to switch between the first and second print drivers by use of the MID command at the conclusion of a print job.

Abstract: Thermally sprayable powders for the formation of abradable seals and abradable seals formed by thermally spraying the powders include an alloyed metal phase material and a solid lubricant ceramic phase material. The alloyed metal phase material includes a major amount of a matrix metal which can be one or more of Ag or Cu, at least one melting point depressing metal which can be one or more of Si, B, Mn, or Al, and at least one oxidation resistant metal which can be one or more of Al, Cr, or Si. The solid lubricant ceramic phase is preferably hexagonal boron nitride, molybdenum sulphide, graphite, talc, bentonite or mica. Abradable seals formed by thermally spraying the powders are suitable for use with Ti alloy blades at temperatures up to 700.degree. C.

Abstract: A system and method of assuring the proper configuration of a peripheral device to a data processing system so that a job is not commenced unless the proper configuration is established. A unique verification number(s) corresponding to the proper configuration for the job is in the memory of the peripheral device and is available to the data processing system when it corresponds to a current configuration. The verification number(s) for the job is also available to the system from its entry into system resources. Comparison of the verification number(s) for the job from system resources to the verification number(s) indicating current configuration provide assurance of proper peripheral device setup. The invention is exampled for spot color printers used with print servers but applies to any kind of peripheral device. In a second embodiment, verification number(s) for the job from system resources is sent to the peripheral device for establishing its configuration in accordance with the number(s).

Abstract: A centrifuge apparatus is used for collecting white blood cells, primarily mononuclear cells, from whole blood stratified into layers. A thin mononuclear (MNC) layer is formed at the interface of red blood cells and plasma. A barrier is positioned in the separation vessel of the centrifuge at a location to intercept the thin layer. An MNC collect port is positioned in front of the barrier to collect the thin layer. MNC fluid is allowed to pool behind the barrier to surround the collect port before collection is started. Collection ceases when the pool is removed and allowed to build again. By operating the collect in an intermittent fashion, improvements in purity and collect volume are achieved. The intermittent collection procedure can be useful for harvesting granulocytes and, in general, any sparse stratified component of a centrifuged solution where the sparse component is layered between more dense and less dense strata.

Abstract: Spectroscopic materials analysis wherein a sample under test is bombarded by electrons in a scanning electron microscope to produce an x-ray emission collected over a large solid angle by a polycapillary lens and focused onto the surface of a microcalorimeter detector. The x-ray lens is used to increase the effective collection area of the microcalorimeter detector used in an x-ray spectrometer. By increasing the collection angle, the time period for x-ray collection is reduced and the detector can be located farther from the x-ray source. The x-ray lens is effective over a broad energy range of x-rays, thus providing compatibility with spectroscopic analysis. The microcalorimeter can be calibrated to compensate for any variations in the transmission efficiency of the x-ray lens.