Abstract: This disclosure provides a package structure, an optical module, and an optical communication device. The package structure is a transistor outline package structure. The package structure includes: a can, provided with a transparent window; a header, mated with the can to form a cavity structure; and a HCSEL chip, disposed in the cavity structure. A plane in which the HCSEL chip is located is parallel to a mounting surface of the header, and an optical signal emitted by the HCSEL chip is directed toward the transparent window. A detection unit is disposed in the HCSEL chip, and the detection unit is configured to detect power of the optical signal emitted by the HCSEL chip. The horizontal cavity surface-emitting laser chip integrated with the detection unit is disposed in the package structure, so that the simplest package form is implemented, a packaging procedure is simplified, and packaging volume is reduced.

Abstract: The present invention relates to the field of coal mine concealed fire zone detection, in particular to a coal spontaneous combustion downhole detection system and method based on a self-potential method. The coal spontaneous combustion downhole detection system comprises a self-potential detection apparatus and a self-potential processing apparatus; the self-potential detection apparatus comprises measuring electrodes, a reference electrode and metal anchor rods; the measuring electrodes are arranged on a top plate of a goaf roadway, are fixed to the metal anchor rods, and are in wireless connection with the reference electrode through the metal anchor rods; the self-potential processing apparatus comprises a data processing sensor for processing potential data and an imaging sensor for converting data into images; and the measuring electrodes and the reference electrode are in wireless connection with the data processing sensor.

Abstract: The embodiments of the present disclosure provide a video processing method and apparatus, and an electronic device. The video processing method includes: acquiring a first video and first information, where the first information is used for generating a second video, and the first information comprises an identifier of an audio and editing information; acquiring the audio in a content delivery network based on the identifier of the audio; and generating the second video based on the first video, the audio, and the editing information.

Abstract: An impeller with a plurality of blades that extend between a first wheel disc and a second wheel disc of the impeller can be configured for use within a centrifugal fan of a range hood. The plurality of blades of the impeller can each form a sawtooth segment that includes oblique teeth that function to reduce the effects of air resistance on the operation of the impeller and reduce the noise generated by the impeller in use. The oblique teeth of each sawtooth segment can be arranged such that the dimensions of the oblique teeth gradually decrease as the sawtooth segment extends from the first wheel disc toward the second wheel disc to further improve the functionality of the impeller.

Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.

Abstract: A Penicillium cyclopium strain capable of degrading crop straw fibers efficiently and application thereof are provided. The provided induces mutagenesis of a Penicillium cyclopium strain MP-03 (2554-2) (CGMCC No. 41542) using a nitrosoguanidine method and obtains a mutant strain ?MP-03 (455-1) (CGMCC No. 41541) with enhanced ability to degrade corn straw. By optimizing a nitrogen-to-carbon ratio of culture medium, culture time, temperature, and a pH range for high enzymatic activity, the mutant strain 455-1 significantly enhances the degradation of corn straw, and endoglucanase and exoglucanase activities in corn straw compared with the non-mutant strain 2554-2.

Abstract: A wafer-level cavity package with backside termination is disclosed. In one aspect, a package includes an air cavity that is adjacent to a substrate. Input/output (I/O) vias extend from the circuits in the air cavity through the substrate for connection to external pads for the package. A cap covers the air cavity and does not include metal conductors therethrough. By routing the vias through the substrate instead of the cap, numerous advantages are realized, including better thermal pathing, improved structural integrity of the cap, reductions in die and module stress, tighter frequency variation, enhanced yield, and options for shrinking overall package geometry.

Abstract: Embodiments of the present disclosure disclose a data uploading method and apparatus, a device, and a medium. The method includes: in response to a preset operation triggered by a user before uploading application data, obtaining at least two data uploading protocols; performing data uploading performance testing on each data uploading protocol on the basis of a preset performance testing means, and determining a target uploading protocol that matches with a current network on the basis of a performance testing result; and in response to an application data uploading operation triggered by the user, uploading current target application data to be uploaded on the basis of the target uploading protocol.

Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.

Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.

Abstract: A wireless communication method for use in an access and mobility management function is disclosed. The wireless communication method comprises transmitting, to a policy control function, PCF, allowed network slice selection assistance information, NSSAI, associated with a wireless terminal.

Abstract: A drive circuit is provided. The drive circuit comprises: a driver having a first power supply terminal for receiving a first voltage signal, a second power supply terminal coupled to an current output terminal of a power transistor to receive a second voltage signal, and an output terminal coupled to a control terminal of the power transistor; a drive supply circuit, configured to switch a power supply path that supplies the first voltage signal to the first power supply terminal following a variation of the second voltage signal at a switching node. The drive current is automatically switched in response to rise of the second voltage signal, so that a rate of change of the drive current is reduced during a turn-on process of the power transistor, thereby helping to reduce switching noise, improve EMI performance, and suppress ringing at the switching node.

Abstract: A data processing method includes receiving an infection detection request sent by the detection device; obtaining, based on the infection detection request, a data feature obtained by performing feature extraction on target data; and outputting, to the detection device, the data feature for detecting whether the target data is infected by a virus.

Abstract: This thermal management apparatus for energy storage batteries in cold regions combines a battery enclosure and a diesel-fired circulation heater. The enclosure comprises an enclosure body with dual-layer outer/inner housings separated by a first vacuum insulation layer, and a cover mounted atop the enclosure body containing a second vacuum layer. The inner housing incorporates a water reservoir interlayer connected to two upper-mounted delivery pipes. The cover features water delivery ports fitted with adapters coupling to the pipes, along with a cable routing hole accessing the inner housing. The heater forms a closed hydraulic loop by connecting its inlet and outlet to respective adapters. A temperature sensor installed on the inner housing's interior wall is linked to the heater for operational control. The dual vacuum insulation layers synergize with the circulating water system to maintain optimal battery temperature while minimizing heat dissipation.

Abstract: This thermal management apparatus for energy storage batteries in cold regions combines a battery enclosure and a diesel-fired circulation heater. The enclosure comprises an enclosure body with dual-layer outer/inner housings separated by a first vacuum insulation layer, and a cover mounted atop the enclosure body containing a second vacuum layer. The inner housing incorporates a water reservoir interlayer connected to two upper-mounted delivery pipes. The cover features water delivery ports fitted with adapters coupling to the pipes, along with a cable routing hole accessing the inner housing. The heater forms a closed hydraulic loop by connecting its inlet and outlet to respective adapters. A temperature sensor installed on the inner housing's interior wall is linked to the heater for operational control. The dual vacuum insulation layers synergize with the circulating water system to maintain optimal battery temperature while minimizing heat dissipation.

Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.

Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.

Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.

Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.