Abstract: Provided is a channel identification method. The method includes: acquiring channel data of a terminal; constructing a first feature vector based on the channel data, where the first feature vector represents a numerical value set of cross-correlation values, which change along with time intervals, between channel data at different moments and the channel data themselves and between the channel data at different moments and subsequent channel data at different time intervals; and inputting the first feature vector into a predetermined prediction model to predict a speed of the terminal, or to predict a speed type of a cluster to which the terminal belongs. Further provided are an adaptive transmission method and apparatus based on the channel identification method, a transmission device, a base station, and a computer storage medium.

Abstract: The present application relates to a DCDC circuit, a circuit start-up method, and an electronic device. The DCDC circuit includes a transformer circuit, a synchronous rectification circuit, and a control circuit; wherein the control circuit is configured to control a turn-on duration of a first switch and a turn-on duration of a second switch in a first bridge circuit of the transformer circuit to increase progressively every switching cycle until an output voltage of the transformer circuit is greater than a first target voltage; and control a turn-on duration of a third switch and a turn-on duration of a fourth switch in a second bridge circuit of the synchronous rectification circuit to increase progressively every switching cycle until an output voltage of the synchronous rectification circuit is greater than a second target voltage.

Abstract: The present application presents a method for adjusting antenna directions, an apparatus for adjusting antenna directions, a base station, an electronic device, and a computer-readable storage medium, and relates to the field of wireless communication technology. The method comprises: processing tidal time information of a tidal cell to obtain a plurality of tidal time periods, the tidal cell is a communication cell in which there is a tidal effect; determining a plurality of antenna weights corresponding to the tidal time periods based on the plurality of tidal time periods and neighbor cell information of the tidal cell; and adjusting directions of RF antennas of the tidal cell based on the tidal time periods and their corresponding antenna weights.

Abstract: A mechanism is described for facilitating slimming of neural networks in machine learning environments. A method of embodiments, as described herein, includes learning a first neural network associated with machine learning processes to be performed by a processor of a computing device, where learning includes analyzing a plurality of channels associated with one or more layers of the first neural network. The method may further include computing a plurality of scaling factors to be associated with the plurality of channels such that each channel is assigned a scaling factor, wherein each scaling factor to indicate relevance of a corresponding channel within the first neural network. The method may further include pruning the first neural network into a second neural network by removing one or more channels of the plurality of channels having low relevance as indicated by one or more scaling factors of the plurality of scaling factors assigned to the one or more channels.

Abstract: A charging circuit is provided. The charging circuit is applied to an electronic device. The charging circuit includes a resonant circuit and a voltage transformer circuit. The resonant circuit is configured to convert a received DC signal into an AC signal. The voltage transformer circuit includes a primary winding and a secondary winding. The primary winding is connected to an output end of the resonant circuit. The primary winding is coupled to the secondary winding. The voltage transformer circuit is configured to transform a first voltage of the AC signal into a second voltage through the primary winding and the secondary winding. The second voltage is configured to supply electrical energy to an electricity-consuming apparatus. The second voltage is less than or equal to the first voltage.

Abstract: A wafer boat temporary storage device for temporarily storing a wafer boat in a semiconductor processing device includes two carrying platforms arranged oppositely and configured to carry two ends of the wafer boat in a length direction of the wafer boat, respectively. The wafer boat includes two positioning parts arranged at two ends in the length direction and spaced apart in a width direction of the wafer boat. Each carrying platform includes a first positioning structure and a second positioning structure. The first positioning structure is configured to make rolling contact with two sides of the two positioning parts at one end of the wafer boat that face toward or away from the two positioning parts at the other end of the wafer boat in the length direction to perform alignment between the wafer boat and the wafer boat temporary storage device in the length direction.

Abstract: A mechanism is described for facilitating slimming of neural networks in machine learning environments. A method includes learning a first neural network associated with machine learning processes to be performed by a processor of a computing device, where learning includes analyzing a plurality of channels associated with one or more layers of the first neural network. The method may further include computing a plurality of scaling factors to be associated with the plurality of channels such that each channel is assigned a scaling factor, wherein each scaling factor to indicate relevance of a corresponding channel within the first neural network. The method may further include pruning the first neural network into a second neural network by removing one or more channels of the plurality of channels having low relevance as indicated by one or more scaling factors of the plurality of scaling factors assigned to the one or more channels.

Abstract: The present invention relates to a substrate-triggered single crystal superalloy directional solidification process, including: (1) preparing a single crystal substrate material having crystallographic characteristics that match crystallographic characteristics of the single crystal superalloy; (2) fabricating a single crystal substrate chilling plate using the obtained single crystal substrate material; and (3) applying the obtained single crystal substrate chilling plate in a directional solidification apparatus, and then preparing a single crystal alloy product by performing superalloy melting and directional solidification.

Abstract: A chip package includes a package substrate, an integrated circuit (IC) die disposed on the package substrate, and a lid assembly disposed over the IC die. The lid assembly includes a top plate having a lower surface facing the IC die and an outer shoulder. The lid assembly also includes a retainer having a lower surface secured to the package substrate and an inner shoulder retaining to the outer shoulder. The inner shoulder is configured to limit upward movement of the top plate, and expansion of the retainer is decoupled from expansion of the top plate.

Abstract: Embodiments of the present disclosure provide a collapsible wheelchair, including: a movable chassis; a chair; a chair backrest; at least one first folding mechanism, installed between the movable chassis and the chair; and at least one second folding mechanism, connected between the chair and the chair backrest; where, the at least one first folding mechanism and the at least one second folding mechanism are connected in series and both have a four-rod linkage structure, and when the collapsible wheelchair is switched from a folded state to an open state or from the open state to the folded state, the at least one first folding mechanism and the at least one second folding mechanism are configured to move simultaneously. The collapsible wheelchair provided by the present disclosure is convenient in terms of the operation and easy to operate.

Abstract: The present application provides a collapsible wheelchair, including a front support frame, a backrest bracket, a rear support frame and a bracket connecting rod, which are hinged with each other to form a first connecting rod mechanism; the seat connecting rod is hinged with the front support frame and a seat bracket respectively; the front support frame, the backrest bracket, the seat bracket and the seat connecting rod form a second connecting rod mechanism; a hinge point of the backrest bracket and the seat bracket is located above a central plane of the seat bracket.

Abstract: A method for predicting traffic suppression, an electronic device and a storage medium are disclosed. The method may include: determining a traffic value of suppression point according to a preset network traffic model which represents a mapping relationship between a numerical value of a network parameter of a transmission network and a traffic value, wherein the traffic value of suppression point is a traffic threshold of the transmission network under a current running policy; determining a suppression reference value of a target network parameter corresponding to the traffic value of suppression point; and acquiring a parameter prediction value corresponding to the target network parameter, and determining a traffic suppression prediction result according to the parameter prediction value and the suppression reference value.

Abstract: The present invention discloses a directional solidification method for a superalloy single crystal blade based on solid-liquid interface steady control. The method establishes effective criteria for withdrawal speed adjustment, i.e. the related position between a macro solid-liquid interface and a thermal baffle, the range between the dendrite tips at the solid-liquid interface, and the difference between the advance speed of the macro solid-liquid interface and the withdrawal speed. With these criteria, the advance of the solid-liquid interface during directional solidification is simulated and a withdrawal speed curve v(t) for the solid-liquid interface steady advancement was obtained. And then, the single crystal blade was prepared.

Abstract: Embodiments of the present disclosure provide a collapsible wheelchair, including: a movable chassis; a chair; a chair backrest; at least one first folding mechanism, installed between the movable chassis and the chair; and at least one second folding mechanism, connected between the chair and the chair backrest; where, the at least one first folding mechanism and the at least one second folding mechanism are connected in series and both have a four-rod linkage structure, and when the collapsible wheelchair is switched from a folded state to an open state or from the open state to the folded state, the at least one first folding mechanism and the at least one second folding mechanism are configured to move simultaneously. The collapsible wheelchair provided by the present disclosure is convenient in terms of the operation and easy to operate.

Abstract: A label printer and a label printing method for precise positioning thereof are provided. The label printer includes an outer shell and a label cartridge arranged inside the outer shell, a power mechanism and a control mechanism configured to control paper output of the label cartridge and winding and unwinding of a carbon ribbon, and a print head configured to realize label printing. An inner space of the label cartridge is reasonably planed, and a linear label paper output channel and a label rollback release space are arranged, thereby ensuring smoothness of paper feeding and paper rollback, and preventing label paper from wrinkling in a rollback process. A gear transmission system is improved to realize forward and reverse rotation of gears relying on the same electric motor. A photoelectric sensor with its own reflecting prism is arranged to reduce an occupied space of the label cartridge.

Abstract: This specification discloses an application migration method and apparatus, an electronic device, and a storage medium. A to-be-migrated application included in a to-be-maintained server and all candidate servers that receive the to-be-migrated application can be determined. For each to-be-migrated application, an application container configured to maintain the to-be-migrated application is determined. A migration constraint between all to-be-migrated applications and all the candidate servers is determined. Finally, a server that receives each to-be-migrated application is determined from all the candidate servers when the migration constraint is satisfied and a quantity of servers configured to receive the to-be-migrated application meets a preset requirement, and for each to-be-migrated application, an application container of the to-be-migrated application is migrated to a server corresponding to the to-be-migrated application.

Abstract: The present application provides a model training method, a channel adjustment method, an electronic device, and a computer readable storage medium, the model training method includes: collecting historical samples, with the historical samples including first scheduling information and first information corresponding to a historical data transmission, the first information representing a result of cyclic redundancy check, and the first scheduling information including first intermediate variable information in an adaptive modulation and coding process; and performing model training according to the historical samples to obtain a first prediction model, and during the model training, the first scheduling information is used as an input of the first prediction model, the first information is converted into second information corresponding to the historical data transmission to be used as an output of the first prediction model, and the second information represents a probability value of the result of the cycli