Abstract: The present disclosure mainly relates to an earphone, comprising a core module and a hook structure. The core module is disposed on a front side of an ear in a wearing state. At least a portion of the hook structure is disposed at a rear side of the ear in the wearing state. The core module includes a core housing and a loudspeaker. The hook structure includes an adapter housing connected with the core housing. At least a portion of the adapter housing is disposed at the front side of the ear in the wearing state. The adapter housing forms an accommodation cavity and one or more through holes communicated with the accommodation cavity. The earphone includes one or more electrode terminals at least partially disposed in the one or more through holes.

Abstract: A high-energy beam additive manufacturing forming device and forming method, comprising a magnetic field unit for assisting additive forming, and further comprising a forming base (6) for placing a material (12) to be processed, and a high-energy beam generation device which emits a high-energy beam, acts on the material (12) to be processed and forms a molten pool (15). The magnetic field unit comprises a first magnetic field generating device (7), and the first magnetic field generating device (7) comprises an induction coil (20) provided below the molten pool (15). The first magnetic field generating device (7) is detachably provided below a surface, used for containing the material (12) to be processed, of the forming base (6); second magnetic field generating devices (16) are provided above the forming base (6).

Abstract: A method includes obtaining a current image for a target object, recognizing a target image region from the current image, determining an imaging size of the target object based on the target image region, obtaining a reference parameter determined according to a reference size of the target object and a reference distance between aperture and image sensor of camera, determining first distance between the target object and the camera when the current image is collected based on the reference parameter and the imaging size, obtaining second distance between the target object and the camera when historical image is collected, determining collection time difference between the current and historical images, determining movement speed of the target object based on the first and second distances, and the collection time difference, and determining, according to the current image, target image when the movement speed satisfies identity recognition image condition.

Abstract: A cell growth promoter and an application thereof are provided. The invention adopts Fe2+ and ovalbumin to form a Fe2+-ovalbumin (OVA) compound to promote ovalbumin cell endocytosis, the cell growth promoter can maintain cell growth in an environment free of amino acids, promote cell proliferation in an environment with amino acids; and, the Fe2+-OVA compound can replace expensive animal serum albumin in cell culture, the cell growth promoter has a significant effect on improving cell viability and is low cost.

Abstract: This application provides an information reporting method, an information receiving method, a terminal, a network side device, and a storage medium. The information reporting method includes: reporting, by a terminal, indication information, where the indication information is used for indicating that maximum total power of the terminal in a target frequency band combination is a sum of maximum power supported by each frequency band in the target frequency band combination.

Abstract: Disclosed are a method and apparatus for measuring a gaze difference based on gaze estimation. Video data of a testee gazing at a visual target is obtained, and a face image sequence is obtained from the video data. The face image sequence is input into a first neural network for key frame extraction to obtain a first and second gaze position face image. The face images are input into a second neural network for facial feature point extraction. Cropping is performed based on facial feature point coordinates to obtain a first and second eye region image. A gaze difference estimation network is trained to obtain a trained gaze difference estimation network. The first and second eye region images are input into the trained gaze difference estimation network to obtain a predicted gaze difference between the first and second eye region images.

Abstract: Disclosed is a method and apparatus for measuring a deviation angle of a gaze position based on 3D reconstruction. A face image sequence of a testee is acquired. Covering conditions of the face image sequence are obtained. Key frame images are determined and input into a second neural network to obtain feature point heat maps that are converted into facial feature point coordinates. An objective function is constructed. A head pose corresponding to the key frame images is obtained. An eyeball position is initialized. An eyeball rotation angle of a reference gaze position is set as a preset angle. 3D coordinates of an eyeball in a reference gaze position image in a head coordinate system is solved. 3D coordinates of an eyeball in a to-be-measured image in the head coordinate system are fixed. An eyeball rotation angle is solved. A deviation angle of a gaze position is obtained.

Abstract: A method and an apparatus for protecting privacy of an ophthalmic patient and a storage medium are disclosed. The method includes: acquiring an examination video of the ophthalmic patient; extracting image features of each frame of images in the examination video, performing region division on each frame of the images according to position information of organs in the image features, and obtaining a region to be precisely reconstructed and a region to be roughly reconstructed according to a region division result; performing three-dimensional (3D) reconstruction on the region to be precisely reconstructed and the region to be roughly reconstructed, to obtain 3D reconstruction data corresponding to each frame of the images; and rendering all the 3D reconstruction data into a 3D reconstruction video.

Abstract: A communication method includes receiving a first capability query request from a first access device; sending a first capability reporting message to the first access device; receiving a second capability query request from a second access device; and sending a second capability reporting message to the second access device. Neither a first terminal capability nor a second terminal capability is greater than a capability specification of the terminal, the capability specification of the terminal is shared by a first user and a second user, and a sum of the first terminal capability and the second terminal capability is greater than the capability specification of the terminal. Hence, when a single user has a service to be executed, an access device may allocate a corresponding resource to the service of the user based on a reported higher terminal capability.

Abstract: A method and an apparatus for protecting privacy of an ophthalmic patient and a storage medium are disclosed. The method includes: acquiring an examination video of the ophthalmic patient; extracting image features of each frame of images in the examination video, performing region division on each frame of the images according to position information of organs in the image features, and obtaining a region to be precisely reconstructed and a region to be roughly reconstructed according to a region division result; performing three-dimensional (3D) reconstruction on the region to be precisely reconstructed and the region to be roughly reconstructed, to obtain 3D reconstruction data corresponding to each frame of the images; and rendering all the 3D reconstruction data into a 3D reconstruction video.

Abstract: A frictional force monitoring system for middle troughs of a scraper conveyor, comprising a scraper conveyor system and a sensing detection system. The scraper conveyor system consists of a machine body, middle troughs, thrust lugs, scrapers, a double chain, a sprocket, a speed reducer, an electric motor and a frequency converter. The sensing monitoring system consists of force receiving modules, a three-dimensional force sensor, and a pre-embedded temperature sensor. The frictional force monitoring system is able to monitor impact loads, frictional forces, friction coefficients, temperature, etc. between an annular chain, coal bulk, and middle troughs of the scraper conveyor under complex and severe operating conditions, and to provide the technical means for the design, safety early-warning and health evaluation of the scraper conveyor, and can provide a data basis for studying friction wear and fatigue breaking mechanism of middle troughs of a scraper machine.

Abstract: A frictional force monitoring system for middle troughs of a scraper conveyor, comprising a scraper conveyor system and a sensing detection system. The scraper conveyor system consists of a machine body, middle troughs, thrust lugs, scrapers, a double chain, a sprocket, a speed reducer, an electric motor and a frequency converter. The sensing monitoring system consists of force receiving modules, a three-dimensional force sensor, and a pre-embedded temperature sensor. The frictional force monitoring system is able to monitor impact loads, frictional forces, friction coefficients, temperature, etc. between an annular chain, coal bulk, and middle troughs of the scraper conveyor under complex and severe operating conditions, and to provide the technical means for the design, safety early-warning and health evaluation of the scraper conveyor, and can provide a data basis for studying friction wear and fatigue breaking mechanism of middle troughs of a scraper machine.

Abstract: An energy-saving security composite window comprising a peripheral side frame and glass installed on the side frame, in which the side frame is of composite structure. A rectangular high strength metal pipe is located centrally to serve as a main body of the side frame and a cavity of the rectangular high-strength metal pipe is filled with a filling material. A plurality of non-metal profiles are respectively fixed on an outer surface of the rectangular high-strength metal pipe, and an installation groove for installing glass is formed between the rectangular high strength metal pipe and the non-metal profile. An external profile is a metal alloy material, a wooden material, a plastic material, or a glass material fixed on an outer surface of the non-metal profile. The performances of external windows of buildings, such as heat insulation, heat preservation, energy saving, sound insulation, and wind pressure resistance, is improved.

Abstract: An energy-saving security composite window comprising a peripheral side frame and glass installed on the side frame, in which the side frame is of composite structure. A rectangular high strength metal pipe is located centrally to serve as a main body of the side frame and a cavity of the rectangular high-strength metal pipe is filled with a filling material. A plurality of non-metal profiles are respectively fixed on an outer surface of the rectangular high-strength metal pipe, and an installation groove for installing glass is formed between the rectangular high strength metal pipe and the non-metal profile. An external profile is a metal alloy material, a wooden material, a plastic material, or a glass material fixed on an outer surface of the non-metal profile. The performances of external windows of buildings, such as heat insulation, heat preservation, energy saving, sound insulation, and wind pressure resistance, is improved.

Abstract: An energy-saving security composite window comprising a peripheral side frame and glass installed on the side frame, in which the side frame is of composite structure. A rectangular high strength metal pipe is located centrally to serve as a main body of the side frame and a cavity of the rectangular high-strength metal pipe is filled with a filling material. A plurality of non-metal profiles are respectively fixed on an outer surface of the rectangular high-strength metal pipe, and an installation groove for installing glass is formed between the rectangular high strength metal pipe and the non-metal profile. An external profile is a metal alloy material, a wooden material, a plastic material, or a glass material fixed on an outer surface of the non-metal profile. The performances of external windows of buildings, such as heat insulation, heat preservation, energy saving, sound insulation, and wind pressure resistance, is improved.

Abstract: The disclosure of the present application presents a multiple-ring coupled ring oscillator design that employs multiple-ring coupling to achieve improved phase noise by minimizing noise injection from tail current and adjacent rings, while providing additional output phases for multiphase signal generation. In one non-limiting exemplary prototype embodiment, a 1.5 GHz triple-ring coupled ring oscillator achieved measured phase noise of ?110.5 dBc/Hz at 1 MHz offset, demonstrating phase noise reduction of 7 dB compared with its single-ring oscillator counterpart. The MROs couple multiple rings with proper phase shifting to achieve improved phase noise. Common source coupling benefits from tail current noise reduction, and introducing phase delays in the coupling paths minimizes noise coupling from the adjacent cores. The overall effect leads to improved phase noise performance as demonstrated in quadrature voltage controlled VCO designs.

Abstract: An energy-saving security composite window comprising a peripheral side frame and glass installed on the side frame, in which the side frame is of composite structure. A rectangular high strength metal pipe is located centrally to serve as a main body of the side frame and a cavity of the rectangular high-strength metal pipe is filled with a filling material. A plurality of non-metal profiles are respectively fixed on an outer surface of the rectangular high-strength metal pipe, and an installation groove for installing glass is formed between the rectangular high strength metal pipe and the non-metal profile. An external profile is a metal alloy material, a wooden material, a plastic material, or a glass material fixed on an outer surface of the non-metal profile. The performances of external windows of buildings, such as heat insulation, heat preservation, energy saving, sound insulation, and wind pressure resistance, is improved.