Abstract: A method for identifying an abnormality in a mechanical apparatus or mechanical component includes: i) acquiring at least two classes of undersampled measurement data collected in or on a mechanical apparatus or mechanical component, all of the at least two classes of undersampled measurement data being different from one another in either one of or both of the following aspects: delay relative to occurrence time of a trigger event, and sampling frequency; and ii) based on the at least two classes of undersampled measurement data acquired, using an abnormality identification model to identify an abnormality in the mechanical apparatus or mechanical component, the abnormality identification model being based on machine learning and used for identifying an abnormality in the mechanical apparatus or mechanical component. Also disclosed is a method for training an abnormality identification model based on machine learning, a computer apparatus, a computer program product, and a detection apparatus.

Abstract: A rig management system is disclosed. The rig management system may be configured to receive vibration data from a set of sensors installed on one or more elements of a hydraulic fracturing rig. The rig management system may be configured to perform a first processing of the vibration data utilizing a moving window technique to identify a possible failure of a set of bearings. The rig management system may be configured to perform a second processing utilizing a set of processing techniques after identifying the possible failure of the set of bearings. The rig management system may be configured to determine that the possible failure is an actual failure based on a result of performing the second processing. The rig management system may be configured to perform an action after determining that the possible failure is the actual failure.

Abstract: A rig management system is disclosed. The rig management system may be configured to receive vibration data from a set of sensors installed on one or more elements of a hydraulic fracturing rig. The rig management system may be configured to perform a first processing of the vibration data utilizing a moving window technique to identify a possible failure of a set of bearings. The rig management system may be configured to perform a second processing utilizing a set of processing techniques after identifying the possible failure of the set of bearings. The rig management system may be configured to determine that the possible failure is an actual failure based on a result of performing the second processing. The rig management system may be configured to perform an action after determing that the possible failure is the actual failure.

Abstract: The present invention relates to a method for displaying information associated with television program, which includes: fetching a plurality of sequentially arranged program listings and corresponding program notes; generating an electronic program guide according to the program listings and corresponding program notes; and displaying the electronic program guide. The electronic program guide includes a program listing, a program note associated with the program listing, and at least one icon indicating that the user would select to display the previous or the next program listing in the electronic program guide. The present invention further provides an electronic program guide and a processing apparatus for generating the electronic program guide. The electronic program guide can display information associated with TV program in a more intuitive manner.

Abstract: A screw fastener, for fastening a workpiece to a fixed member, including a screw having a head having circumferential knurling and a stem having a first stem portion abutting the head and second stem portion abutting the first stem portion, the first stem portion having a smooth surface and the second stem portion having threads; a fixed member having a countersink bore section for accommodating the head and a threaded bore section for engagement with the second stem portion, the countersink bore section having a larger diameter than the threaded section; and a plastic washer having a hole that allows the washer to engage with the threaded section and an outer diameter larger than the diameter of the bore; the second stem portion passing sequentially through the workpiece to be fastened, the plastic washer, the countersink bore section and engage with the threaded bore section of the fixed member.

Abstract: The present invention relates to a method for displaying information associated with television program, which includes: acquiring at least one sequentially arranged program listings and corresponding program notes; generating an electronic program guide according to the program listings and corresponding program notes; and displaying the electronic program guide on a display screen. The electronic program guide includes a background area, at least one program listing, and a program note corresponding to one of the program listing. The background area is opaque and covers most of the display area. The present invention further provides an electronic program guide and a processing apparatus for generating the electronic program guide. The electronic program guide doesn't completely affect the normal television viewing.

Abstract: A display method based on Vchip includes: displaying a plurality of first ratings in a first level menu; and displaying a plurality of second ratings corresponding to each of the first ratings in a second level menu. In one embodiment, the first ratings are program content ratings, and the second ratings are age ratings. In other embodiment, the first ratings are age ratings, and the second ratings are program content ratings. The program content rating and the corresponding age ratings are respectively displayed in two level menus; therefore, it is easy to be understood and does not make the users confused, and is more convenient for operation.

Abstract: A screw fastener, for fastening a workpiece to a fixed member, including a screw having a head having circumferential knurling and a stem having a first stem portion abutting the head and second stem portion abutting the first stem portion, the first stem portion having a smooth surface and the second stem portion having threads; a fixed member having a countersink bore section for accommodating the head and a threaded bore section for engagement with the second stem portion, the countersink bore section having a larger diameter than the threaded section; and a plastic washer having a hole that allows the washer to engage with the threaded section and an outer diameter larger than the diameter of the bore; the second stem portion passing sequentially through the workpiece to be fastened, the plastic washer, the countersink bore section and engage with the threaded bore section of the fixed member.