Abstract: A knee joint prosthesis includes a femoral component having a first condylar bearing surface and a second condylar bearing surface. Each of the first and second condylar bearing surfaces has a cross-section in a coronal plane that exhibits at least two different radii. The prosthesis also includes a tibial component and an insert component associated with the tibial component. The insert component has bearing surfaces that are complementary to the first and second condylar bearing surfaces, wherein a contact point is established between the bearing surfaces of the insert component and the first and second condylar bearing surface. In accordance with the present invention and as a result of the above construction, varus and valgus rotation of the femoral component relative to the insert component causes the contact point to move laterally as the knee is rotated. By shifting the contact pointy laterally/outwardly, the knee stability (i.e., stiffness) gradually increased.

Abstract: Apparatus and methods for total elbow replacement are provided to allow a surgeon to intraoperatively select a linked or unlinked constraint by utilizing a connection located on the body of the ulnar and/or humeral stem. Additional modularity also allows the selection of a cemented or cementless stem as described herein. The modularity and adjustability provides a number of advantages.

Abstract: In the described embodiments, a computer constructs a dispatch data structure for a holder by first determining a set of member holders from which the holder inherits. The computer then constructs an “i-table” that includes holder addressor regions that each contains addressors for an associated set of members. Each of the holder addressor regions is associated with an i-table index. The computer next collects a set of identification numbers for the set of member holders and, from these, constructs an “m-table.” The size of the m-table is selected to perfectly hash the set of identification numbers by the m-table size. The computer then computes an m-table index for each of the set of identification numbers modulo the m-table size and uses the m-table index to populate the m-table. The computer next stores the i-table index in the m-table in accordance with the m-table index.

Abstract: A resilient excavation bucket for use with a piece of machinery having an articulated arm. The excavation bucket comprises a resilient member and a rigid member. The resilient member has a digging edge adapted to deflect in response to pressure from impact with a material at least as rigid as the digging edge and to return to a substantially non-deflected condition upon release of the pressure. The rigid member is cooperatively associated with the resilient member and has a connection member adapted to pivotally engage a portion of the articulated arm of the piece of machinery. At least one of the resilient member and the rigid connection member at least partially defines a bucket cavity disposed at least partially between the digging edge and the connection member. Additionally, an excavation apparatus comprising a backhoe having an articulated arm and the resilient excavation bucket operatively associated with the articulated arm.

Abstract: A power take-off unit is connected to a power take-off gear/port on a concrete mixing truck transmission, the power take-off unit being driven by the engine so it is always providing power as long as the engine is running. A hydraulic pump is connected to and driven by the power take-off unit. Hydraulic lines connect the pump to a planetary drive assembly for the concrete mixing drum; the drum itself is capable of receiving only a small/light load of concrete, in the range of two to five cubic yards.

Abstract: A suture retainer for use with a surgical instrument comprises a slot defined in the surgical instrument, the slot having a bottom and lateral slot ends. A retainer block comprises a bottom and lateral block ends. The lateral block ends and the lateral slot ends are configured to matingly engage to define a v-shaped gap adjacent a lateral slot end near a mouth of the slot.

Abstract: A resilient excavation bucket for use with a piece of machinery having an articulated arm. The excavation bucket comprises a resilient member and a rigid member. The resilient member has a digging edge adapted to deflect in response to pressure from impact with a material at least as rigid as the digging edge and to return to a substantially non-deflected condition upon release of the pressure. The rigid member is cooperatively associated with the resilient member and has a connection member adapted to pivotally engage a portion of the articulated arm of the piece of machinery. At least one of the resilient member and the rigid connection member at least partially defines a bucket cavity disposed at least partially between the digging edge and the connection member. Additionally, an excavation apparatus comprising a backhoe having an articulated arm and the resilient excavation bucket operatively associated with the articulated arm.

Abstract: One embodiment provides a system that protects translated guest program code in a virtual machine that supports self-modifying program code. While executing a guest program in the virtual machine, the system uses a guest shadow page table associated with the guest program and the virtual machine to map a virtual memory page for the guest program to a physical memory page on the host computing device. The system then uses a dynamic compiler to translate guest program code in the virtual memory page into translated guest program code (e.g., native program instructions for the computing device). During compilation, the dynamic compiler stores in a compiler shadow page table and the guest shadow page table information that tracks whether the guest program code in the virtual memory page has been translated. The compiler subsequently uses the information stored in the guest shadow page table to detect attempts to modify the contents of the virtual memory page.

Abstract: One embodiment of the present invention provides a system that reduces the overhead involved in executing a native code method in an application running on a virtual machine. During operation, the system selects a call to a native code method to be optimized within the virtual machine, decompiles at least part of the native code method into an intermediate representation, and obtains an intermediate representation associated with the application. Next, the system combines the intermediate representation for the native code method with the intermediate representation associated with the application running on the virtual machine to form a combined intermediate representation, and generates native code from the combined intermediate representation, wherein the native code generation process optimizes interactions between the application running on the virtual machine and the native code method. A variation on this embodiment involves optimizing callbacks by the native code method into the virtual machine.

Abstract: A proton exchange membrane fuel cell and method for forming a fuel cell is disclosed and which includes, in its broadest aspect, a proton exchange membrane having opposite anode and cathode sides; and individual electrodes juxtaposed relative to each of the anode and cathode sides, and wherein at least one of the electrodes is fabricated, at least in part, of a porous, electrically conductive ceramic material. The present methodology, as disclosed, includes the steps of providing a pair of electrically conductive ceramic substrates, applying a catalyst coating to the inside facing surface thereof; and providing a polymeric proton exchange membrane, and positioning the polymeric proton membrane therebetween, and in ohmic electrical contact relative thereto to form a resulting PEM fuel cell.

Abstract: A system including an accessible electrical box; a wireless receiver to receive a wireless signal from an occupancy sensor; a power switch to control power to a load; and a controller to control the power switch in response to the wireless signal. The wireless receiver, controller, and power switch are included in the accessible electrical box.

Abstract: Managing data across a semantic data view and a presentation data view may be provided. A semantic model may be represented in a semantic data view and a presentation model may be represented in a presentation data view. The presentation model may correspond to a graphical representation of the semantic model. In addition, a command may be received directed toward the semantic data view or the presentation data view. The semantic model and the presentation model may be operated upon according to the received command. Furthermore, the semantic model represented in the semantic data view and the presentation model represented in the presentation data view may be updated in response to operating on the semantic model and the presentation model according to the received command. The semantic model and the presentation model may be simultaneously maintained in a volatile memory in a computer.

Abstract: An integrated load sensing system includes a housing including a coupling pin portion thereof. A bridge circuit includes a set of strain gauges bonded to the coupling pin portion. A bridge circuit excitation, error correction, and amplification (BCEECA) subsystem is operatively connected to the bridge circuit for receiving indications of shear load from the strain gauges, correcting signal error, and amplifying the indications of shear load. The BCEECA subsystem provides amplified output signals. A power conditioning module is operatively connected to the BCEECA subsystem for receiving power from an external power supply and conditioning power to an appropriate state for driving the bridge circuit as well as an appropriate state for error correction and amplification circuitry within the BCEECA subsystem. A logic module compares the amplified output signals to a predetermined signal threshold and provides latching of enunciation in accordance with a selected delay after the threshold is surpassed.

Abstract: The invention provides a method for preparing insecticidally treated textile having improved properties. A novel combination of an insecticide and certain polymeric binder(s) or dye fixatives is used to coat and/or impregnate fabric via a combination of application methods used in the textile industry. The insecticide-binder or insecticide-dye fixative combination and the method by which it is applied to the textile yield a coated fabric and, ultimately, finished goods with improved wash durability of the insecticide over several launderings and prolonged insecticidal efficacy.

Abstract: One embodiment of the present invention provides a system that tracks enregistered memory locations. During operation, the system receives program object code that enregisters a memory location (e.g., a set of data at a given memory address). Next, the system executes this program object code using a thread. After enregistering the memory location, the system tracks the associated memory address and a thread identifier for the thread in a table that identifies enregistered memory locations. The system checks this table during memory accesses to ensure that other threads attempting to access an enregistered memory location receive a current value for the enregistered memory location.

Abstract: A linear actuating device contains a top magnet and a bottom magnet. The bottom magnet is axially aligned with the top magnet. The top magnet and the bottom magnet have opposing magnetization. A washer is sandwiched between the top magnet and the bottom magnet. A top coil is positioned within the top magnet. A bottom coil is positioned within the bottom magnet. A slug is slidably positioned within the top coil and bottom coil. An actuating member is integral with the slug.

Abstract: A resilient excavation bucket for use with a piece of machinery having an articulated arm. The excavation bucket comprises a resilient member and a rigid member. The resilient member has a digging edge adapted to deflect in response to pressure from impact with a material at least as rigid as the digging edge and to return to a substantially non-deflected condition upon release of the pressure. The rigid member is cooperatively associated with the resilient member and has a connection member adapted to pivotally engage a portion of the articulated arm of the piece of machinery. At least one of the resilient member and the rigid connection member at least partially defines a bucket cavity disposed at least partially between the digging edge and the connection member. Additionally, an excavation apparatus comprising a backhoe having an articulated arm and the resilient excavation bucket operatively associated with the articulated arm.

Abstract: One embodiment of the present invention provides a system that accesses memory locations in an object-addressed memory system. During a memory access in the object-addressed memory system, the system receives an object identifier and an address. The system then uses the object identifier to identify a paged memory object associated with the memory access. Next, the system uses the address and a page table associated with the paged memory object to identify a memory page associated with the memory access. After determining the memory page, the system uses the address to access a memory location in the memory page.