Abstract: A transient electromagnetic device with variable shape and turns includes squares, a transmitting coil carrying frame, a transmitting coil, a turns-variable device, a current generator and a working power supply. The transmitting coil carrying frame is arranged inside the transmitting coil; the transmitting coil carrying frame is configured as a carrier of the transmitting coil, and configured for adjusting a side length of the transmitting coil and a shape of the transmitting coil; the square is configured for clamping and connecting the transmitting coil and the transmitting coil carrying frame to fix the transmitting coil to the transmitting coil carrying frame. The current generator is configured for generating transient current; the turns-variable device is configured for changing the turns of the transmitting coil; and the transmitting coil is configured for transmitting the transient current to a target area to be measured.

Abstract: This application relates to the field of lighting, and discloses an LED filament. The LED filament includes an LED chip unit, a light conversion layer, and an electrode. The light conversion layer covers the LED chip unit and part of the electrode, and a color of a light emitted by the LED filament after lighting is different from a color of the light conversion layer. This application has the characteristics of uniform light emission and good heat dissipation effect.

Abstract: A microfluidic ion detection chip having a bubble brightening structure includes a substrate, an upper plate, two glass cover plates, and a foam board. The substrate is provided with a fluid mixing region, a lower optical detection through hole, and a lower gas flow channel. The upper plate is adhesively connected to the substrate and is provided with a sample outlet, an upper optical detection through hole, an upper gas flow channel, and two sample inlets, the upper gas flow channel and the lower gas flow channel are combined to form a gas flow channel. The two glass cover plates are respectively disposed at the lower optical detection through hole and the upper optical detection through hole. The foam board is provided with a foaming structure capable of generating bubbles and a surfactant coated on the foam board, the foam board is disposed at the gas flow channel.

Abstract: A method for establishing an optocoupler SPICE model includes: establishing at least three performance-state optocoupler SPICE models respectively from optocoupler circuits that correspond to at least three performance states; establishing, according to a maximum performance state, a minimum performance state, and a typical performance state of the at least three performance states that correspond to the at least three performance-state optocoupler SPICE models, three selection circuits for each of an input end and an output end; and correspondingly connecting an input-end first selection circuit, an input-end second selection circuit, an input-end third selection circuit, an output-end first selection circuit, an output-end second selection circuit, and an output-end third selection circuit to two sides of the at least three performance-state optocoupler SPICE models, so as to establish the optocoupler SPICE model.

Abstract: A fan-out semiconductor device includes stacked semiconductor dies having die bond pads arranged in columns exposed at a sidewall of the stacked semiconductor dies. The stacked dies are encapsulated in a photo imageable dielectric (PID) material, which is developed to form through-hole cavities that expose the columns of bond pads of each die at the sidewall. The through-hole cavities are plated or filled with an electrical conductor to form conductive through-holes coupling die bond pads within the columns to each other.

Abstract: Provided are a video sharing method and apparatus, an electronic device, and a storage medium. The method comprises: determining a designated user, and triggering a video filming instruction for the designated user; displaying a filming interface in response to receipt of the video filming instruction; initiating video filming in response to receipt of an initiate instruction, and in response to determining that voice information is received, adding the voice information in the form of a subtitle to the filming interface to obtain a filmed video; and sharing the filmed video with the designated user through a conversation message.

Abstract: A shooting method includes the following steps. A shooting page including a control region and a main display region is displayed, where the control region is used to display at least two effect controls, a more effect control, and a main shooting control, the at least two effect controls correspond to recommended effects according to a preset recommendation parameter; in response to a target slide operation in the main display region, the controls is moved along a sliding direction of the target slide operation, a target control is determined according to the target slide operation; in response to the target control being one effect control, a preview of a target effect corresponding to the target control is displayed on the shooting page, and capturing is performed using the target effect in response to a first trigger operation on the trigger position.

Abstract: Provided are a method and apparatus for translating words in a picture, an electronic device, and a storage medium. The method includes: recognizing words embedded in a target picture to obtain at least one text line, each of which corresponds to one line of words; perform paragraph combination on the at least one text line to obtain at least one text paragraph; translating the at least one text paragraph into at least one target text paragraph in a specified language; and replacing the words in the target picture with the at least one target text paragraph.

Abstract: A follow-hold switch circuit comprising: a follower; a sampling sub-circuit for voltage sampling; a bootstrap-control sub-circuit, which provides a bootstrap voltage to the sampling sub-circuit when the circuit is in a following state; a sampling-switch-control sub-circuit, which provides a common-mode voltage to a bootstrap capacitor in the bootstrap-control sub-circuit when the circuit is in a holding state; the follower is connected to an output of the sampling sub-circuit; the sampling sub-circuit is connected to the bootstrap-control sub-circuit and the sampling-switch-control sub-circuit respectively through a sampling switch; the present disclosure can effectively improve the linearity of sampling switches.

Abstract: A vision inspection system for laser welds includes a scanning station to support a workpiece including one or more laser welds. A vision sensing assembly includes a top surface, a bottom surface, side surfaces, a light source, and a sensor. The light source illuminates the workpiece while the sensor generates an image of the one or more laser welds of the workpiece. A shield is arranged around the top surface and the side surfaces of the vision sensing assembly. The bottom surface of the vision sensing assembly is arranged above a lower edge of the shield by a first predetermined distance.

Abstract: Systems and methods are provided for tracking data in a computer network. An exemplary method includes: storing a first data in the one or more data servers; receiving a first request to aggregate the first data; aggregating a first set of the first data; analyzing one or more fields of each of the first set of the first data; removing the one or more first data elements from the first set of the first data; generating a second set of the first data; aggregating the second set of the first data; retrieving information associated with the aggregation of the second set of the first data; and generating one or more reports using the retrieved information associated with the aggregation of the second set of the first data.

Abstract: An electronic device (such as an access point) that receives a modified response frame is described. During operation, an interface circuit in the electronic device may provide a trigger frame addressed to a second electronic device, where the trigger frame includes a trigger-frame variant that is compatible with an IEEE 802.11 standard (such as IEEE 802.11ax or a subsequent IEEE 802.11 standard). Then, the interface circuit may receive a modified response frame associated with the second electronic device, where the modified response frame is different from a response frame associated with the trigger frame specified by the IEEE 802.11 standard. When the second electronic device indicates support for the modified response frame during association with the electronic device, the interface circuit may define parameters associated with the modified response frame in an association response.

Abstract: The present application relates to a spectral restoring method, including: acquiring a light energy response signal matrix output by a photosensitive chip of a spectral imaging device and a standard spectrum; determining a primitive restoring function and a response signal vector of the primitive restoring function based on the light energy response signal matrix, the primitive restoring function restoring a spectral image value of a predetermined channel corresponding thereto using a predetermined pixel value of the photosensitive chip and pixel values in the vicinity thereof; acquiring a restoring tensor, the product of the restoring tensor and the response signal vector being equal to an output of the primitive restoring function based on the response signal vector; and obtaining a restored spectral image based on the product of the restoring tensor and the response signal vector.

Abstract: A conference control method may include: creating video conferences and data conferences both of which are in one-to-one correspondence; and receiving a control instruction sent by a conference terminal, and instructing, according to the control instruction, all conference terminals to switch to a video conference or data conference corresponding to the control instruction.

Abstract: An electronic device (such as an access point) that receives a modified response frame is described. During operation, an interface circuit in the electronic device may provide a management frame addressed to a second electronic device. Then, the interface circuit may provide a trigger frame addressed to the second electronic device, where the trigger frame includes a trigger-frame variant that is compatible with an IEEE 802.11 standard. Next, the interface circuit may receive a modified response frame associated with the second electronic device, where the modified response frame is different from a response frame associated with the trigger frame specified by the IEEE 802.11 standard, and modifications to the modified response frame are specified in the management frame.

Abstract: Embodiments of the present disclosure provide a positioning method and apparatus, a device, and a storage medium, the method is applied to a wearable display device, where the wearable display device includes a display host and a peripheral, the display host and/or the peripheral are used for projecting a structure light image onto an object in a real environment, and the method includes: acquiring an image obtained by the display host shooting the object, and an image obtained by the peripheral shooting the object; and determining, according to image obtained by shooting and the structure light image, a pose of the peripheral relative to the display host.

Abstract: A digital-display control apparatus of a garbage can with adjustable sensing distance includes an emitter, a receiver, amplifier, an analog to digital converter, an analog to digital conversion result register connected to the receiver via the amplifier and the analog to digital convertor, a comparison unit, a sensing distance adjustable register, a microcomputer control unit, a drive circuit, and a digital displayer and keys, which is capable of selecting the sensing distance by directly pressing keys or choose the predetermined sensing distance.

Abstract: A die casting mold may be made of an iron alloy including, by mass: about 1% to about 6% nickel, about 0.1% to about 5% copper, about 0.2% to about 2.5% aluminum, about 0.5% to about 2% manganese, and about 0.05% to about 0.2% carbon. The iron alloy may be formed into an initial shape of the die casting mold, heated to a temperature greater than or equal to about 900° C. and then cooled to form a supersaturated solid solution of iron and dissolved alloying elements. Then, the iron alloy may be heated at a temperature sufficient to precipitate intermetallic nanoparticles from the supersaturated solid solution to form an intermetallic precipitate phase dispersed throughout an iron-based matrix phase. A layer of iron alloy material disposed at and along a surface of the iron alloy may exhibit a deformed microstructure indicative of a machining direction.

Abstract: Various embodiments of the teachings herein include methods for implementing communication conversion between a server-client system and a publish-subscribe (pub-sub) system. An example may include: receiving a message from the pub-sub system, wherein a topic of the message includes information related to a target service in the server-client system to which the message is to be sent, and a payload of the message includes identification information of a consumer in the pub-sub system, wherein the consumer is to receive a response message from the server-client system; parsing the message to determine a host and a service provider that provide the target service, and the consumer who is to receive the response message; sending a request message for the target service to the service provider on the determined host; receiving the response message; adding the identification information to the response message; and sending it to the pub-sub system.

Abstract: Macroblocking artifacts are assessed in an encoded video. Edges are detected and edge strengths are computed at macroblock boundaries in each decoded frame of the video. The detected edges are paired at horizontal or vertical sides of each macroblock to identify macroblock edge pairs. A macroblocking level of the frame is identified according to the macroblock edge pairs. For instance, for each of the macroblock edge pairs, the edges of the pair are identified as being macroblocking edges if edge strengths of both sides of the pair exceed a significance threshold, and the macroblocking level of the frame is determined by aggregating the macroblocking edges in the frame.