Abstract: A method of calibrating an ultrasonic characteristic on a wire bonding system is provided. The method includes the steps of: (a) determining a reference ultrasonic characteristic for formation of a wire bond; (b) determining a reference non-stick ultrasonic characteristic that results in a non-stick wire bond condition; (c) determining a calibration non-stick ultrasonic characteristic, on a wire bonding system to be calibrated, that results in a non-stick wire bond condition; and (d) determining a calibration factor for the wire bonding system to be calibrated using the reference non-stick ultrasonic characteristic and the calibration non-stick ultrasonic characteristic.

Abstract: A control method for an autonomous working machine, an autonomous working machine and a storage medium are provided. The autonomous working machine is configured to work in a working area, the working area includes at least two sub-working areas, the at least two sub-working areas are respectively set with different working frequencies, and the control method for the autonomous working machine includes: respectively obtaining working frequencies of the autonomous working machine in the at least two sub-working areas; and controlling the autonomous working machine to work in the at least two sub-working areas to satisfy requirements of the working frequencies of the at least two sub-working areas. The autonomous working machine may work in a sub-working area according to a working frequency, so that a user may diversely customize own working preferences.

Abstract: A culture medium and culture method for inducing olfactory mucosa mesenchymal stem cells into olfactory ensheathing cells are provided, belonging to the technical field of cell induction and culture. The culture medium provided in the present disclosure is mainly composed of cellular trophic factors, and does not contain animal proteins. The present disclosure further provides a method for inducing olfactory mucosa mesenchymal stem cells into olfactory ensheathing cells using the culture medium.

Abstract: This application provides a virtual weather interaction method performed by an electronic device. The method includes: displaying a virtual scene; in response to a zoomed-in-state trigger operation, displaying a map of a first region of the virtual scene in a zoomed-in state; and in accordance with a determination that the first region in the map in the zoomed-in state is in a first weather state, playing a first special effect corresponding to the first weather state in at least one map grid comprised in the first region.

Abstract: A circuit. The circuit includes a switch having a gate terminal, a source terminal and a drain terminal, a switch driver circuit connected to the gate terminal and arranged to control an on-state and an off-state of the switch, the switch drive circuit including: a signal conversion circuit arranged to receive a control signal and in response generate a high-side signal; a signal buffer circuit coupled to the signal conversion circuit and arranged to receive the high-side signal and in response generate a buffered signal; and a drive circuit coupled to the signal buffer circuit and arranged to receive the buffered signal and in response generate a gate drive signal that causes the switch to transition between the on-state and the off-state. In one aspect, the switch is an NMOS transistor having a gate, a source and a drain, where the source and drain are at substantially high voltage.

Abstract: A method of determining a new search height for a wire bonding process is provided. The method includes the steps of: providing a search height; performing a plurality of wire bonding operations using the search height; monitoring wire bonding evaluation criteria during each of the plurality of wire bonding operations; and determining a new search height using the monitored wire bonding evaluation criteria.

Abstract: A method of determining a sequence for creating a plurality of wire loops is provided. The method includes (a) providing workpiece data for a workpiece. The workpiece data includes (i) position data for bonding locations of the workpiece, and (ii) wire loop data for a plurality of wire loops providing interconnection between ones of the bonding locations. The method also includes (b) analyzing the workpiece data. The step of analyzing includes considering overlap conditions between ones of the plurality of wire loops, considering wire loop heights of ones of the plurality of wire loops, considering lateral bend conditions between ones of the plurality of wire loops, and considering wire loop positions for ones of the plurality of wire loops. The method also includes (c) providing a sequence of creating the plurality of wire loops in connection with the workpiece at least partially based on the results of step (b).

Abstract: A method of determining an effect of electronic component placement accuracy on wire loops in a semiconductor package is provided. The method includes the steps of: (a) providing package data for a semiconductor package, the semiconductor package including an electronic component; (b) simulating placement of the electronic component in a plurality of positions with respect to a substrate in the semiconductor package; and (c) determining, using a software tool, an effect of each of the plurality of positions of the electronic component on a plurality of wire loops included in the semiconductor package.

Abstract: An array substrate and a display apparatus are provided. The array substrate includes a base substrate and a plurality of sub-pixels located on the base substrate. The plurality of sub-pixels is arranged in an array along a first direction and a second direction; and the first direction and the second direction intersect with each other. The array substrate includes a plurality of pixel regions; each pixel region includes sub-pixels with different colors arranged along the first direction, and different pixel regions have a same area; in a same pixel region, sub-pixel regions of at least two sub-pixels with different colors have different sizes in the first direction; a size ratio of sub-pixel regions of at least two sub-pixels with different colors in the first direction is 1 to 2; and the sub-pixel region includes an effective light-exiting region.

Abstract: A channel monitoring method and apparatus, and a terminal, a network device and a storage medium are provided. The method includes: a terminal determining, on the basis of a first carrier indication value, a CCE index occupied by a PDCCH candidate corresponding to first DCI, wherein the first DCI represents DCI capable of simultaneously scheduling uplink and/or downlink channels of at least two cells; and the first carrier indication value represents a carrier indication value configured by a network side for a first cell combination, the first cell combination being a cell combination scheduled by the first DCI.

Abstract: Embodiments of this specification provide distributed data processing methods, apparatuses, and devices. One method includes: determining an active vertex set that currently participates in data processing in target graph data, in response to determining that an external memory of a first distributed node stores an active vertex in the active vertex set, determining, from a plurality of predetermined data processing modes, a target data processing mode that matches the active vertex set, determining, based on the target data processing mode, a to-be-updated vertex according to the association relationship with the active vertex, and sending, based on first data of the active vertex in the external memory, a first update message to a target distributed node in which the to-be-updated vertex is located.

Abstract: A method of determining a height value of a wire loop on a wire bonding machine is provided. The method includes the steps of: (a) imaging at least a portion of a wire loop using an imaging system on a wire bonding machine to detect a path of the portion of the wire loop; (b) moving a wire bonding tool towards a first contact portion of the wire loop in the path; (c) detecting when a portion of a conductive wire engaged with the wire bonding tool contacts the first contact portion of the wire loop; and (d) determining a height value of the wire loop at the first contact portion based on a position of the wire bonding tool when the portion of the conductive wire contacts the first contact portion of the wire loop.

Abstract: A method for controlling a buck-boost circuit includes: obtaining an input voltage and an output voltage; controlling the buck-boost circuit to enter a buck-boost mode when an absolute value of a voltage difference between the input voltage and the output voltage is less than a preset voltage threshold; and executing within each control cycle: in a first stage, controlling both first and second low-side switching transistors to be conductive and controlling both first and second high-side switching transistors to be non-conductive; in a second stage, controlling both the first and second high-side switching transistors to be conductive and controlling both first and second low-side switching transistors to be non-conductive; and in a third stage, controlling both the first and second high-side switching transistors to be conductive and controlling both the first and second low-side switching transistors to be non-conductive.

Abstract: A display substrate and a display apparatus are provided. The display substrate includes a base substrate and data lines, gate lines, a first electrode layer, and transistors. The first electrode layer is on a side of the data lines away from the base substrate; each transistor includes a gate electrode, a first electrode and a second electrode, second electrodes of the transistors are electrically connected to the first electrode layer. The gate lines are located on a side of the data lines away from the base substrate, the gate electrodes of the transistors are arranged on the same layer as the data lines, and an orthographic projection of the gate electrode of at least one transistor on the base substrate is spaced apart from an orthographic projection of the gate line.

Abstract: The present disclosure relates to battery technologies, and specifically, to a battery level verification method, a controller, a battery apparatus, and a drone. The battery level verification method includes: obtaining battery sampling data and a first battery level; determining a target battery level according to the battery sampling data; generating first battery level verification information according to the target battery level and the first battery level; in response to the first battery level verification information indicating that the first battery level is unreliable, controlling a coulometer to enter a reset state, wherein the coulometer calculates, in the reset state, a second battery level of a battery according to the battery sampling data; and generating second battery level verification information according to the second battery level and the target battery level.

Abstract: The present disclosure relates to a meta-learning strategy based method for early warning of attenuation of a bearing capacity of a soft soil pile foundation. The method includes: S1, building a loop loading test device; S2, setting up a data set; S3, building and training a base model; S4, introducing a meta-learning strategy into the base model obtained in S3, inputting a pre-training data set for pre-training, and obtaining a pre-trained model; and S5, inputting a target data set into the pre-training data set for pre-training, and obtaining a model prediction result. The method constructs an intelligent early warning model with fast adaptability, such that the intelligent early warning model can make full use of existing engineering experience.

Abstract: Embodiments of this specification disclose graph data partition computer-implemented methods, non-transitory, computer-readable media, and computer-implemented systems. A computer-implemented method includes partitioning vertices in graph data into a plurality of dataset. Edges in the graph data are partitioned into datasets that include target vertices of the edges, where the datasets are used by nodes in a distributed cluster to perform graph computation, and where computational loads of the plurality of datasets are similar. Implementations of this specification can achieve load balancing between nodes in the distributed cluster and can reduce communication overhead.

Abstract: A power generation device and method based on the time-varying magductance principle relate to the field of energy conversion, and in particular relate to an electromagnetic induction power generation device. The power generation device includes an electric energy generation unit, a power conversion unit and an electric energy storage unit. The electric energy generation unit includes a time-varying magductance component configured to form a closed conductor loop in a magnetic circuit with constant magnetic flux. By changing a magductance parameter of the time-varying magductance component, the time-varying magductance component generates induced current. The power conversion unit consists of a switching device and a circuit. The electric energy generated by the time-varying magductance component can be stored into the electric energy storage unit through controlling the switching device.

Abstract: Provided is a method for producing tetrafluoromethane through plasma pyrolysis of waste polytetrafluoroethylene (PTFE). The method includes: subjecting the waste PTFE to a plasma pyrolysis reaction to obtain a pyrolysis product, and subjecting the pyrolysis product to quenching and gas-solid separation in sequence to obtain a pyrolysis gas including the tetrafluoromethane, wherein the plasma pyrolysis reaction is performed at a temperature of 1,800 K to 5,000 K.