Abstract: Systems and methods are provided for using sensors and signal processing to detect vehicle surface impacts. In particular, a sensor and signal processing approach is provided for detecting impacts, with the results having a low false positive rate. The approach reduces operator costs by reducing operator involvement through improved automated detection technology. Additionally, systems and methods are provided for distinguishing chassis-driven fascia vibration from impact-driven fascia vibration.

Abstract: Systems and methods are provided for using sensors and signal processing to detect vehicle surface impacts. In particular, a sensor and signal processing approach is provided for detecting impacts, with the results having a low false positive rate. The approach reduces operator costs by reducing operator involvement through improved automated detection technology. Additionally, systems and methods are provided for distinguishing chassis-driven fascia vibration from impact-driven fascia vibration.

Abstract: A climbing apparatus includes a mast having a plurality of mast segments operable to vertically stack one after another. Each segment includes a stand-off to abut against a climbing object and form a space for receiving a strap to secure the mast to the climbing object. The apparatus includes a platform assembly having a (i) a platform, (ii) a seat spaced apart from the platform, and (iii) a frame connecting the seat to the platform. An upper trolley is provided for independent mobility up and down along the mast. The upper trolley includes a first brake connected to a handle operable to actuate movement of the trolley. A lower trolley is provided and is operable for independent mobility up and down along the mast relative to the upper trolley. The lower trolley includes a second brake and is connected to the frame of the platform assembly.

Abstract: Systems and methods are provided for using sensors and signal processing to detect vehicle surface impacts. In particular, a sensor and signal processing approach is provided for detecting impacts, with the results having a low false positive rate. The approach reduces operator costs by reducing operator involvement through improved automated detection technology. Additionally, systems and methods are provided for distinguishing chassis-driven fascia vibration from impact-driven fascia vibration.

Abstract: A climbing apparatus includes a mast having a plurality of mast segments operable to vertically stack one after another. Each segment includes a stand-off to abut against a climbing object and form a space for receiving a strap to secure the mast to the climbing object. The apparatus includes a platform assembly having a (i) a platform, (ii) a seat spaced apart from the platform, and (iii) a frame connecting the seat to the platform. An upper trolley is provided for independent mobility up and down along the mast. The upper trolley includes a first brake connected to a handle operable to actuate movement of the trolley. A lower trolley is provided and is operable for independent mobility up and down along the mast relative to the upper trolley. The lower trolley includes a second brake and is connected to the frame of the platform assembly.

Abstract: A climbing apparatus includes a mast having a plurality of mast segments operable to vertically stack one after another. Each segment includes a stand-off to abut against a climbing object and form a space for receiving a strap to secure the mast to the climbing object. The apparatus includes a platform assembly having a (i) a platform, (ii) a seat spaced apart from the platform, and (iii) a frame connecting the seat to the platform. An upper trolley is provided for independent mobility up and down along the mast. The upper trolley includes a first brake connected to a handle operable to actuate movement of the trolley. A lower trolley is provided and is operable for independent mobility up and down along the mast relative to the upper trolley. The lower trolley includes a second brake and is connected to the frame of the platform assembly.

Abstract: A method for modeling a field-programmable gate array (FPGA) for an emulator includes performing a validation process on an FPGA design to determine whether an FPGA emulator is able to emulate at least one component in the FPGA design; responsive to the FPGA emulator being unable to emulate the at least one component in the FPGA design, modifying the FPGA design by replacing the at least one component with at least one replacement component; executing a first simulation of the FPGA design to generate a first output; executing a second simulation of the modified FPGA design to generate a second output; and determining, with reference to the first output and the second output, that the FPGA design and the modified FPGA design are functionally equivalent.

Abstract: A typical turbine roof ventilator includes a turbine hood having a closed end, a ring spaced from the closed end and a series of spaced blades extending from the ring to the closed end. A novel sleeve assembly is disclosed including a first sleeve portion having a first open end and a second open end and a second sleeve portion defining a third and a fourth open end. The third end of the second sleeve portion is partly located inside the second end of the first sleeve. The second sleeve is hinged to the first sleeve portion about a pivot axis. The outside diameter of first sleeve portion is slightly smaller than the inside diameter of the second sleeve portion. Both sleeves are at least part spherical such that the second and first sleeve portions can be relatively freely rotated relative to each other about the pivot axis so that the relative angle between planes defined by the first end of the first sleeve axis and the fourth end of the second sleeve may be adjusted.

Abstract: A turbine roof ventilator includes a rotatable shaft defining an upper end and a lower end. A turbine hood is located on the upper end of the shaft and is adapted to turn with the shaft. A cylindrical sleeve is disposed below the turbine hood. The shaft is mounted in a bearing housing which is fixed relative to the cylindrical sleeve while allowing the shaft to rotate about its longitudinal axis. A fan or vane assembly is disposed on the lower end of the shaft and adapted to turn with the shaft so that as the turbine hood turns, the fan sucks air into the housing to improve the rate of flow of air through the roof ventilator.