Abstract: A performance degradation-based product reliability weak link evaluation method includes: acquiring a performance degradation parameter of each component of a to-be-evaluated product corresponding to each test time point; evaluating the performance degradation parameter of each component corresponding to each test time point through a fault time evaluation model, to obtain a pre-fault operating duration of each component; evaluating the pre-fault operating duration of each component through a confidence-based unreliability evaluation method, to obtain an unreliability evaluation result of each component; generating at least one component service life distribution model corresponding to each component according to the unreliability evaluation result, and selecting a corresponding target component service life distribution model; and evaluating mean time between failures corresponding to each component according to the target component service life distribution model, and selecting a reliability weak link of th

Abstract: The present disclosure relates to a method and an apparatus for processing accelerated test data based on multiple performance degradation, and a device.

Abstract: The present disclosure provides a periodic time slot scheduling method for a wireless network. The method includes: connecting a plurality of nodes by using a wireless network; constructing time slot parameter sets of nodes in the wireless network and an interval array between time slots of each of the nodes; calculating an acceptable total time interval of each of the nodes in the wireless network, selecting a node with a minimum acceptable total time interval in the wireless network as a time slot allocation node, allocating a time slot for each time slot request of the time slot allocation node, and allocating a time slot for each time slot request of a remaining node except the time slot allocation node in the wireless network; and detecting and determining a delay of time slot allocation.

Abstract: A light emitting device includes at least one light emitting unit that includes an insulating layer, a first electrically conductive layer, and a semiconductor layer structure having at least one recess. The first electrically conductive layer and the insulating layer extend into the recess. A contact area between a conductive protrusion portion of the first electrically conductive layer and a first-type semiconductor layer of the semiconductor layer structure is larger than 1.5% of an area of a bottom surface of the first-type semiconductor layer. A method for producing the light emitting device is also disclosed.

Abstract: The present disclosure relates to a method and an apparatus for reliability evaluation based on multiple performance degradation, a computer device, a storage medium, and a computer program product. The method includes: for each of the multiple performances of a target product, obtaining a plurality of candidate functions that the performance possibly follows, determining a target function that satisfies a preset selection condition from the plurality of candidate functions, and determining a reliability function corresponding to the performance based on the target function; determining coupling relation information between the multiple performances of the target product, and obtaining redundancy information of the multiple performances of the target product; and performing a reliability evaluation on the target product based on the coupling relation information, the redundancy information, and the reliability function of each performance.

Abstract: The present disclosure relates to a method and an apparatus for processing accelerated test data based on multiple performance degradation, and a device.

Abstract: A light-emitting device includes a lead frame having a first surface on which a patterned conductive layer is provided, and a light-emitting element. The light-emitting element includes an insulating substrate formed on the first surface, a plurality of light-emitting units formed on the insulating substrate, at least one first electrode, at least one second electrode and at least a pair of bonding wires. The first and second electrodes are respectively placed in electrical connection with a first one and a second one of the light-emitting units, and are disposed outward of the light-emitting units. Each of the pair of bonding wires is disposed to electrically connect a respective one of the first and second electrodes to the patterned conductive layer.

Abstract: A finishing boring machine for a high-precision wheel hub hole, includes: a boring machine body, a hydraulic automatic centering fixture, a computer numerical control (CNC) vertical sliding table, a spindle box, a CNC facing head, a cutter assembly, and a hydraulic system. The boring machine body is a main structure of the finishing boring machine for the wheel hub hole. The hydraulic automatic centering fixture is configured to place a to-be-processed workpiece, and is arranged on the boring machine body. The CNC vertical sliding table is configured to control operation of the CNC facing head, and is arranged on the boring machine body. The spindle box is configured to control an operation speed of the CNC facing head, and is arranged on the CNC vertical sliding table. The CNC facing head is configured to control the cutter assembly to process the to-be-processed workpiece, and is arranged on the spindle box.

Abstract: Disclosed are a fault prediction method and apparatus for a power conversion device, and a power conversion system. The method includes: acquiring multiple output voltages of a detecting coil in a preset time period, wherein an electromagnetic induction is generated between the detecting coil and a switching-on circuit of a switching transistor in the power conversion device; extracting each output frequency corresponding to each output voltage of the detecting coil; predicting time when the power conversion device fails according to a change trend of each output frequency. The apparatus includes a detecting coil and a data processing device; the detecting coil is connected to the data processing device and is a closed coil; the data processing device is configured to: acquire an output voltage of the detecting coil, extract corresponding output frequency, and predict time when the power conversion device fails according to a change trend of each output frequency.

Abstract: A light emitting diode includes a semiconductor layer sequence stack, a reflective polarizing layer and a diffuse reflection structure. The semiconductor layer sequence stack includes first and second semiconductor layers, and a light emitting layer disposed therebetween. The reflective polarizing layer is disposed on the semiconductor layer sequence stack. The diffuse reflection structure is disposed on the light emitting layer opposite to the reflective polarizing layer. A light emitting device including the light emitting diode, and a projector including the light emitting device are also provided.

Abstract: A computer-implemented method for optimizing the placement of previously selected breaks in a media item is provided herein. Embodiments of the method include steps of identifying a break in a media item, the break being associated with a first break point at a first time during playback of the media item. The method may also include steps of dynamically adjusting the placement of the breaks within the media item based on the performance of the media item.

Abstract: A light-emitting device includes a lead frame having a first surface on which a patterned conductive layer is provided, and a light-emitting element. The light-emitting element includes an insulating substrate formed on the first surface, a plurality of light-emitting units formed on the insulating substrate, at least one first electrode, at least one second electrode and at least a pair of bonding wires. The first and second electrodes are respectively placed in electrical connection with a first one and a second one of the light-emitting units, and are disposed outward of the light-emitting units. Each of the pair of bonding wires is disposed to electrically connect a respective one of the first and second electrodes to the patterned conductive layer.

Abstract: The present disclosure provides a battery charging current control device. The battery charging current control device comprises an H-bridge circuit, a sampling circuit, a control circuit and a pulse width modulation circuit, wherein the H-bridge circuit is respectively connected with an external power supply and a battery and used for transmitting current from the external power supply to the battery for supplying power for the battery; the sampling circuit is connected with the H-bridge circuit and used for collecting an output current and an output voltage of the H-bridge circuit to obtain a current analog signal and a voltage analog signal; the control circuit is connected with the sampling circuit and used for generating a control signal according to the current analog signal, the voltage analog signal and the capacity of the battery; and the pulse width modulation circuit is respectively connected with the control circuit.

Abstract: A computer-implemented method for optimizing the placement of previously selected breaks in a media item is provided herein. Embodiments of the method include steps of identifying a break in a media item, the break being associated with a first break point at a first time during playback of the media item. The method may also include steps of dynamically adjusting the placement of the breaks within the media item based on the performance of the media item.

Abstract: An isolated IgG antibody includes two identical heavy chains each having a hinge region with an amino acid sequence containing an additional cysteine upstream of the two cysteines in the CPPCP sequence of a native IgG hinge region, and a CH1 domain containing a cysteine at the position of 142 according to the IMGT numbering scheme. ADCs based on the antibody having this architecture are also provided.

Abstract: Methods and systems for time marking of media items at a platform using machine-learning are provided herein. An indication of a identified media item is provided as input to a machine-learning model and one or more outputs of the machine-learning model is obtained. The one or more obtained outputs comprise time marks identifying each of the plurality of content segments of the media item. Each of the plurality of content segments is associated with a segment start indicator for a timeline of the media item. A resulting duration is determined of a combination of the plurality of content segments for which the time marks were obtained from the one or more of outputs of the machine-learning model. Responsive to determining that the resulting duration is less than the duration of the media item, one or more further inputs is provided to the machine learning model.

Abstract: A signaling-type method for mobile phone signals, comprising: establishing a shielding processing system, and ensuring that the frequency reference of said system is synchronized with that of a base station; using the feature that a frame signal of a base station is repeatedly transmitted according to a frame period of the base station, receiving the frame signal of the base station at different times; performing filtering processing on the frame signals of the base station using a frame averaging method, so as to obtain purified frame reference signals of the base station; and using the purified frame reference signals to shield the base station.

Abstract: A polarizer includes a light-transmissible substrate, a plurality of metal wires, and a protective layer. The light-transmissible substrate has a mounting surface. The metal wires are parallelly arranged on the mounting surface of the light-transmissible substrate. Each of the metal wires extends in a direction parallel to the mounting surface, and has an upper surface and a peripheral surface. The protective layer has a first portion and a plurality of second portions. The first portion covers the upper surface of each of the metal wires and is formed into a continuous structure. Each of the second portions covers the peripheral surface of a respective one of the metal wires. Two adjacent ones of the second portions are spaced apart from each other. A light emitting device including the polarizer and a light emitting apparatus including the light emitting device are also disclosed.

Abstract: Methods and systems for predicting titles for contents segments of media items at a platform using machine-learning are provided herein. A media item is provided to users of a platform, the media item having a plurality of content segments comprising a first content segment and a second content segment preceding the first content segment in the media item. The first content segment and a title of the second content segment are provided as input to a machine-learning model trained to predict a title for the first content segment that is consistent with the title of the second content segment. One or more outputs of the machine-learning model are obtained which indicate the title for the first content segment. An indication of each content segment and a respective title of each content segment are provided for presentation to at least one user of the one or more users.

Abstract: Methods and systems for time marking of media items at a platform using machine-learning are provided herein. A media item is provided to users of a platform. An indication of the identified media item is provided as input to a machine-learning model that is trained using different feature types of historical media items to predict a plurality of content segments of a given media item each depicting, to the one or more users, a distinct section of the media item. One or more outputs of the machine-learning model are obtained comprising time marks identifying each of the plurality of content segments of the media item. Each of the plurality of content segments are associated with a segment start indicator for a timeline of the media item. The media item and an indication of each segment start indicator is provided for presentation to at least one user.