Abstract: Disclosed are a method and apparatus for calibrating the sound quality of an earphone, and a device and a storage medium. The method includes: acquiring frequency response data of an earphone to be calibrated and a preset target frequency response curve; according to the target frequency response curve, determining whether the frequency response data meets the calibration condition; if it is determined that the frequency response data meets the calibration condition, performing section dividing on the frequency response data, to obtain a filter parameter by means of searching based on a preset genetic algorithm, and calibrating the frequency response data according to the filter parameter, to obtain new frequency response data; and when it is determined that the new frequency response data does not meet the calibration condition, determining to calibrate the sound quality of the earphone to be calibrated based on the filter parameter.

Abstract: A dimming method of a display device and a display device are provided. The dimming method includes: obtaining a target brightness of the display device; when the target brightness is less than a first preset dimming brightness threshold, setting a dimming mode of the display device to a PWM dimming mode; and, when the target brightness is larger than a second preset dimming brightness threshold, setting the dimming mode of the display device to a DC dimming mode. The first preset dimming brightness threshold is less than the second preset dimming brightness threshold. When the target brightness is less than or equal to the second preset dimming brightness threshold and the target brightness is larger than or equal to the first preset dimming brightness threshold, the dimming mode of the display device is set to a transition dimming mode.

Abstract: Sports sunglasses are provided, including a frame, temples and a nose support, the temples being hinged to both end parts of the frame, and two sunglass lenses being installed on the frame. The sports sunglasses further include two lens rims, an optical lens being installed inside each lens rim. At least one first engaging slot is formed on an inner side of the frame above the sunglass lens, and a first engaging head mated with the first engaging slot is provided on an outer side of the lens rim, the two lens rims being engaged into the corresponding first engaging slots through respective first engaging heads thereof. When the first engaging heads are engaged into the corresponding first engaging slots, the first engaging heads can slide certain distance toward the end parts of the frame from a middle part thereof, forming an accommodation groove between the two lens rims.

Abstract: Disclosed in the present disclosure are an earphone and an audio processing method and apparatus therefor, and a storage medium. The audio processing method comprises: acquiring a bone conduction signal and a microphone signal when the earphones are in worn states; performing phase adjustment on the bone conduction signal to obtain an adjusted bone conduction signal; and inputting an audio stream, which contains the adjusted bone conduction signal and the microphone signal, into an audio playing unit of the earphones to play the audio stream, so that co-channel interference is generated between the adjusted bone conduction signal in the audio stream and a sound which is transmitted to an ear canal through a user's skeletons.

Abstract: A display unit, including a display panel including a static portion and a retractable portion; a tension bar coupled to the retractable portion of the display panel; a midframe coupled to the static portion of the display panel; a sync plate including curved slots extending from a first side to a second side of the sync plate, each of the curved slots including a respective first end and a respective second end, the sync plate moveably coupled to the midframe; counterweight springs each including a first end and a second end, the second ends each including a protrusion, the counterweight springs coupled between the midframe and the sync plate such that the protrusions of the second ends of each of the counterweight springs are movably coupled within a respective curved slot of the sync plate; torsion springs coupled between the tension bar and the second side of the sync plate.

Abstract: The present disclosure provides an aerosol generating device. The aerosol generating device includes a housing assembly, at least two heating members, and an air regulating switch and a propulsion switch linked with each other. The housing assembly is provided with an airway, and the airway includes an air inlet. The at least two heating members are connected in parallel and provided in the housing assembly. The air regulating switch is movably connected to the housing assembly and is arranged at an end of the air inlet. The propulsion switch is electrically connected to the heating member. The air regulating switch is movable relative to the housing assembly to regulate an area of the air inlet, and drives the propulsion switch to regulate a number of the heating members in operation.

Abstract: Integrated battery cell pre-lithiation apparatus and method uses lithium source half electrode to pre-lithiate the battery cell in batch through electrochemical method. Pre-lithiation apparatus comprises external power supply and pre-lithiation working box comprising box body; battery cell fixing element and lithium source half electrode disposed within the box body; and negative electrode current collector and lithium source current collector. The negative electrode current collector comprises negative electrode busbar communicated with negative electrodes of a plurality of battery cells simultaneously, and lithium source current collector communicated with the lithium source half electrode. Negative electrode of the battery cell and lithium source half electrode are connected to external power supply and provide electrochemical lithium supplement under action of the power supply.

Abstract: Methods, apparatus, and processor-readable storage media for performing digital file analysis using graph-based representations and machine learning techniques are provided herein. An example computer-implemented method includes segmenting at least one digital file into multiple variable-sized portions; determining one or more content-based relationships across at least a portion of the multiple variable-sized portions of the at least one digital file; generating at least one graph representation of the at least one digital file based on the one or more content-based relationships and the at least a portion of the multiple variable-sized portions of the at least one digital file; processing one or more portions of the at least one graph representation using one or more machine learning techniques; and analyzing the at least one digital file based on results of processing the one or more portions of the at least one graph representation using the one or more machine learning techniques.

Abstract: Techniques are provided for data storage control using a spatial-sequential graph network with non-adjacent sequential node connections. One method comprises obtaining portions of a digital file; determining spatial relationships and sequential relationships associated with the digital file; generating a graph representation of the digital file based on the determined spatial relationships and the determined sequential relationships; encoding the determined spatial relationships and the determined sequential relationships from the graph representation into a spatial-sequential graph network comprised of nodes and edges connecting nodes, wherein two non-adjacent nodes in the spatial-sequential graph network are connected in the spatial-sequential graph network based on one or more distance metrics relating to the two non-adjacent nodes; performing similarity detection for the digital file; and initiating an automated data storage control action based on a result of the similarity detection.

Abstract: The gas treatment apparatus includes: a column, an upper sealing head connected to an upper end of the column, and a lower sealing head connected to a lower end of the column, wherein: a fluid inlet pipe is arranged at a position of the column close to the upper scaling head, a fluid outlet end of the fluid inlet pipe extending into the column, and the fluid outlet end being connected to an absorption fluid spray nozzle used for spraying absorption fluid downwards; a gas inlet pipe is arranged at a position of the column close to the lower scaling head, and a gas outlet end of the gas inlet pipe extends into the column; the gas outlet end of the gas inlet pipe has connected thereto a microbubble-generating inner part; a back-mixing inner part is arranged in the column above the microbubble-generating inner part.

Abstract: The present application provides a high-nickel ternary positive electrode active material, which comprises a core Li1+a[LixCoyMnzMb]O2, a fast ionic conductor Li?AlXSiYO4 of a first shell layer, an oxide of an element R of a second shell layer, and a transition layer LipRqOw formed between the first shell layer and the second shell layer. In the high-nickel ternary positive electrode active material of the present application, the surface impurity lithium amount is significantly reduced, and by creatively converting the surface impurity lithium into effective components in the fast ionic conductors Li?AlXSiYO4 and LipRqOw which accelerate the intercalation/deintercalation of lithium ions in the core material, the decomposition and gas production of an electrolyte solution caused by the surface impurity lithium is greatly improved, such that a high-nickel ternary lithium-ion battery has high energy density as well as good cycle performance and safety performance.

Abstract: The present disclosure provides a prelithiated negative electrode, a preparation method thereof, and a lithium ion battery and a supercapacitor comprising the same. The prelithiated negative electrode comprises: an electrode film which is a solvent-free film-like negative electrode material composed of a negative electrode active material, a lithium-skeleton carbon composite material, a binder and optionally a conductive additive; and a metal current collector, wherein the electrode film is bonded on the metal current collector through a conductive adhesive. The present disclosure provides an effective method of prelithiating a negative electrode, and can effectively improve the first cycle efficiency of a lithium battery comprising a silicon-carbon negative electrode, contributing to increasing the specific capacity and cycle life of the battery. The present disclosure can also increase the energy density of a supercapacitor.

Abstract: A method for producing a locally hardened component is provided. The method includes S1: placing a to-be-heated portion of a base component in an induction coil for induction heating to form a heated portion; S2: after a completion of the induction heating, spraying a quenching solution on the heated portion, cooling the heated portion down to room temperature, removing the base component, and tempering the base component at low temperature to obtain a quenched component; and S3: grinding, degreasing, and drying a hardened portion of the quenched component, coating a surface treatment solution on a surface of the hardened portion, curing the surface treatment solution, and performing an induction cladding on the hardened portion in a nitrogen atmosphere to obtain the locally hardened component.

Abstract: The present application provides a lithium composite and a method for preparing the same. The lithium composite has a belt shape and comprises: a structure layer; a stress equalization layer disposed on at least one surface of the structure layer, the stress equalization layer comprising patterned metal lithium and/or lithium alloy and having a thickness in a range from 0.1 to 1 ?m; and a lithium film having a width in a range from 185 to 1500 mm and a uniform thickness in a range from 0.5 to 30 ?m, with a thickness tolerance within 20% of the thickness, wherein the lithium film is bound to the structure layer via the stress equalization layer to form the lithium composite.

Abstract: The present application discloses a compensation method, device, apparatus, and storage medium for a display panel, and the method includes: acquiring N areas to be compensated of the display panel, where the N areas to be compensated are determined and obtained based on a target scanning timing and a display blanking area of the display panel, where N is a positive integer; acquiring a first luminance parameter deviation between the N areas to be compensated and a normal area of the display panel when the display panel displays a picture with each of gray scale values at different luminance levels; and determining a target luminance compensation parameter of the display panel based on the first luminance parameter deviation, and performing the luminance compensation on the N areas to be compensated based on the target luminance compensation parameter.

Abstract: A method for producing a locally hardened component is provided. The method includes S1: placing a to-be-heated portion of a base component in an induction coil for induction heating to form a heated portion; S2: after a completion of the induction heating, spraying a quenching solution on the heated portion, cooling the heated portion down to room temperature, removing the base component, and tempering the base component at low temperature to obtain a quenched component; and S3: grinding, degreasing, and drying a hardened portion of the quenched component, coating a surface treatment solution on a surface of the hardened portion, curing the surface treatment solution, and performing an induction cladding on the hardened portion in a nitrogen atmosphere to obtain the locally hardened component.

Abstract: A positive electrode active material includes a core and a first coating layer applied on at least a portion of an outer surface of the core. The core includes a lithium-containing nickel-based transition metal oxide. The first coating layer includes cerium element. A volume-based average particle size Dv90 of the positive electrode active material is denoted as d90, a volume-based average particle size Dv50 of the positive electrode active material is denoted as d50, a volume-based average particle size Dv10 of the positive electrode active material is denoted as d10, and the volume-based average particle size Dv90, the volume-based average particle size Dv50, and the volume-based average particle size Dv10 of the positive electrode active material satisfy: (d90?d10)/d50?0.5.

Abstract: In an illustrative embodiment, a method for adjusting a field of view of a screen of an electronic device includes detecting a target object within a detection range by using a radar apparatus of the electronic device. The method further includes determining whether the target object is a person by using a biometric signal in a detection signal emitted by the radar apparatus in response to detecting the target object; and determining a distance and an angle of the target object relative to the electronic device by using an azimuth signal in the detection signal in response to the target object being a person. The method further includes adjusting the field of view of the screen of the electronic device according to a visual mode of the electronic device based on the distance, a distance threshold, the angle, and a plurality of angle thresholds.

Abstract: According to various embodiments, a processing subsystem includes a housing; a printed circuit board (PCB) disposed within the housing; an integrated circuit package that has a first side and a second side that is opposite to the first side, wherein the first side of the integrated circuit package is mounted on the PCB; and a liquid-based cooling system. The liquid-based cooling system is disposed within the housing and includes: at least one radiator element; a pump that is fluidly coupled to the radiator element; and at least one fan that directs cooling air across the radiator element.