Abstract:
A rock stabilizer includes a metal tube with a tapered distal end and a flanged proximal end capable of being positioned within a bore in a mine wall. A slit runs substantially the entire length and indentations are formed in the outer surface along the length adjacent the slit so that grout pumped into the interior of the tube flows out of the slit and into the indentations. An expander wedge within the tube adjacent the distal end is actuatable from the proximal end after the stabilizer is installed in a bore. The wedge expands the distal end of the tube to firmly anchor the stabilizer in the bore. The expander wedge is formed of one wedge welded to the interior of the tube and a second wedge moveable toward the fixed wedge. The two wedges are temporarily maintained together in the interior of the tube before actuation.
Abstract:
A system and method for providing state of health monitoring and fault diagnostics for a vehicle stability system. The system includes at least one primary sensor and at least one secondary sensor for sensing the operation of at least one vehicle characteristic. The system calculates an estimated output of the primary sensor using at least one estimate model, and generates at least one residual as the difference between a measured output of the primary sensor and the estimated output of the estimate model. The system uses a residual pattern to determine if the primary sensor is faulty. The system compares the measured output of the primary sensor to a measured output of the secondary sensor if the residual is less than a threshold, and determines that the secondary sensor is faulty if the comparison between the measured outputs of the primary and secondary sensors is greater than a predetermined threshold.
Abstract:
The mine support system (26) is typically used in underground coal mines. Support for the hanging wall (40) of the mine is provided by elongate, transversely extending headboards (10) which are supported by spaced apart supports. The supports may take the form of upright mine supports, typically timber props (28) located on the footwall (34) of the mine working, by roof bolts (30) engaging the hanging wall, or by a combination of props and roof bolts. Prestressing grout bags (32) are located on the headboards and bear against the hanging wall. The combination of headboards and bags forms a continuous bridge between the props.
Abstract:
A system and method for reintegration of a redundant controller after occurrence of a fault is provided, comprising synchronizing outputs of a primary controller with outputs of secondary controllers. The controller is placed in a different mode of operation in which its output is not used in system control. A meta-controller is activated to drive the primary controller to the same states at which the secondary or redundant controllers operate. A voting mechanism is used to determine a fault in an output to a controlled device. Control of the device using the secondary outputs is effected. The primary controller recalculates the primary output, based upon the primary output; a feedback signal; and, the secondary outputs. Control using the primary output is permitted when the primary output is within an allowable range of the secondary outputs.
Abstract:
The system and method of the present invention is directed to emulating and configuring any of a plurality of electronic input devices. A system in accordance with one embodiment of the present invention comprises an interface and an emulator. The interface is for selecting and configuring an electronic input device from a plurality of electronic input devices, and the emulator is for emulating the electronic input device. Preferably, the plurality of electronic input devices comprise any two or more of a scroll wheel, a mouse, a joy stick, a steering wheel, an analog button, and a touch bar. Also in a preferred embodiment, the interface is an Application Programming Interface (API) and the emulator comprises a finger swipe sensor for receiving user input.
Abstract:
A vehicle includes a plurality of sub-systems and corresponding controllers for effecting normal control thereover. The vehicle further includes a vehicle dynamics controller for providing high-priority sub-system commands for sub-system control to effect vehicle dynamics enhancements. The vehicle dynamics controller includes a plurality of independently decomposable and recomposable software components or layers and accessible inter-layer bus structure.
Abstract:
This invention relates to a grout composition comprising a Portland cement, a high alumina cement, anhydrous calcium sulphate, an effective amount of a lithium salt and an effective amount of a strong base. According to another aspect of the invention, instead of using a strong base directly in the grout composition, a first compound and a second compound is added to the grout composition which in use react to form an effective amount of a strong base when the grout composition is mixed with water.
Abstract:
A system and related method for monitoring the state of health of sensors in an integrated vehicle stability control system. In one embodiment, the system determines whether a yaw rate sensor, a lateral acceleration sensor or a hand-wheel angle sensor has failed. The system uses a plurality of models to generate estimates of the outputs of the sensors based on the actual sensor measurements. Residuals are generated as the difference between the measured value and each of the estimates for the particular sensor. The residuals are compared to a threshold to determine whether a fault flag will be set for each residual. The threshold for the hand-wheel angle sensor is an adaptive threshold because it does not have physical redundancy. If the fault flags for the residuals for each sensor have a particular pattern, then a fault is output for that sensor.
Abstract:
The present invention provides a method for enhancing an immune response in a mammal to facilitate the elimination of a chronic pathology. The method involves the removal of immune system inhibitors such as soluble TNF receptor from the circulation of the mammal, thus, enabling a more vigorous immune response to the pathogenic agent. The removal of immune system inhibitors is accomplished by contacting biological fluids of a mammal with one or more binding partner(s) such as TNFα muteins capable of binding to and, thus, depleting the targeted immune system inhibitor(s) from the biological fluids. Particularly useful in the invention is an absorbent matrix composed of an inert, biocompatible substrate joined covalently to a binding partner, such as a TNFα mutein, capable of specifically binding to a targeted immune system inhibitor such as soluble TNF receptor.
Abstract:
A resilient windshield wiper assembly is disclosed which comprises a resilient wind-deflector portion molded or extruded to provide a receiving hollow for insertion of a support beam. The resilient wind-deflector portion has a feature strategically positioned and structurally effective to prevent the resilient portion from being rotated or twisted around the support beam. The wind deflector is symmetrical with respect to the axial orientation of the support beam. The symmetry allows conversion of the wind force components from lifting forces to normal forces acting to press and/or hold the wiper against the wiper surface even when subjected to side gusts or reverse head-wind forces. The symmetry further provides a strength member acting directly over the top of the wiping lip surface avoiding introducing a twisting force into the support beam.