Abstract: The invention discloses an ultrasonic dual-wave reliability measurement method for a bolt stress. A first ultrasonic dual-wave transducer is configured to transmit and receive an ultrasonic transverse wave or an ultrasonic longitudinal wave, a second ultrasonic dual-wave transducer is configured to receive the ultrasonic transverse wave or the ultrasonic longitudinal wave, and the transverse wave or longitudinal wave generated by the first ultrasonic dual-wave transducer is propagated in a measured bolt. If a difference between TOF for which the first ultrasonic dual-wave transducer receives the echo signal and double of TOF for which the second ultrasonic dual-wave transducer receives the echo signal in a same mode is not greater than a quarter of one transmission period T, the measured TOF satisfies verification requirements. Reliability of time-of-flight data of the ultrasonic wave can be verified, and various measurement errors can be prevented.

Abstract: A light-emitting device and a display apparatus. The light-emitting device extracts, by means of a light extraction member, light emitted from a side surface (a second light-emitting surface) of a semiconductor light source; the light from the side surface is collected to a top part to be emitted to a wavelength conversion member together with light from a first light-emitting surface; white light is emitted from a top part (a second abutting surface of the wavelength conversion member; and after passing through a light-transmitting layer, the white light is emitted from a top part of the light-transmitting layer that is in the thickness direction thereof and is provided with a light inhibition layer, and the white light from the top part is partially inhibited by the light inhibition layer.

Abstract: Training at the proper level of effort is important for athletes whose objective is to achieve the best results in the least time. In running, for example, pace is often monitored. However, pace alone does not reveal specific issues with regard to running form, efficiency, or technique, much less inform how training should be modified to improve performance or fitness. A sensing system and wearable sensor platform described herein provide real-time feedback to a user/wearer of his power expenditure during an activity. In one example, the system includes an inertial measurement unit (IMU) for acquiring multi-axis motion data at a first sampling rate, and an orientation sensor to acquire orientation data at a second sampling rate that is varied based on the multi-axis motion data.

Abstract: An impact- and vibration-proof lens module includes a fixing assembly, a circuit board, a lens assembly, and a buffering pad. The fixing assembly defines a chamber, and the circuit board is partially disposed in the chamber. The lens assembly is disposed on the circuit board, and the lens assembly is also partially disposed in the chamber. The buffering pad made of thermally conductive silicon is disposed in the chamber and is disposed between the circuit board and the fixing assembly. In the event of being dropped or suffering vibration, the buffering pad disperses and absorbs stress on the fixing assembly to prevent breakage.

Abstract: A receiver includes at least one receive channel. The at least one receive channel includes a first receive channel, and the first receive channel includes a first inductor and a first receiving circuit that are coupled to each other. The first inductor is configured to filter a received signal of a first frequency band to obtain a first received signal. A self-resonant frequency of the first inductor is in an interference frequency band corresponding to the first frequency band. The first receiving circuit is configured to process the first received signal.

Abstract: The present disclosure discloses an application development platform and method, a device, and a storage medium. The platform includes: a program development module, configured to display a page editing interface; and generate a page program according to a user's operation on the page editing interface, where the operation includes generating a page layout using materials and components, and configuring page information for the page layout; a mid-end configuration module, configured to configure an application mid-end for the page program; and an application module, configured to integrate the page program and the application mid-end to obtain an application program.

Abstract: A wire tension control mechanism includes a wire feeding device, a connecting device and a wire guiding device. The connecting device includes a fixing element and a rotor. The fixing element is connected with the wire feeding device. The rotor is disposed on the fixing element and is movable relative to the fixing element. The wire guiding device is connected to the rotor.

Abstract: A camera module includes a circuit board, a lens assembly, and a first board. The circuit board includes a first surface, a second surface opposite to the first surface, a first sidewall, and a second sidewall opposite to the first sidewall. Each of the first sidewall and the second sidewall connects the first surface to the second surface. The lens assembly is disposed on the first surface. The first board is connected to the first sidewall. The first board is inclined or perpendicular to the first surface. The first board is disposed on a side of the lens assembly.

Abstract: Methods, devices, and computer-readable media of task execution based on a knowledge graph obtained by entity alignment are provided. In one aspect, a method includes: obtaining a knowledge graph pair including a first knowledge graph and a second knowledge graph, selecting a target entity by filtering entities in the first knowledge graph, determining a centrality and an uncertainty of the target entity based on the target entity, an entity corresponding to a neighboring node, and entities in the second knowledge graph, constructing a sample entity pair based on the centrality and the uncertainty of the target entity, training a to-be-trained entity alignment model using the sample entity pair, performing entity alignment on to-be-aligned knowledge graphs according to the trained entity alignment model to obtain a merged knowledge graph, and executing a target task based on the merged knowledge graph.

Abstract: A first structure for semiconductor devices having a dielectric film on the top surface can be used to form semiconductor devices that are composed of hybrid bonded structures with reduced dielectric surface area and reduced pitch for metal studs. The top surface of the dielectric film of the first structure can be hybrid bonded to a dielectric layer of a second structure. The dielectric film of the first structure and the dielectric layer of the second structure can be different dielectrics. In this way, the hybrid bonding of the two structures includes the hybrid bonding of asymmetric dielectrics.

Abstract: A structure for semiconductor devices having a high-dielectric constant dielectric film on the top surface of the structure can be used to form semiconductor devices that are composed of hybrid bonded structures with reduced dielectric surface area and reduced pitch for metal studs. For example, the dielectric constant of the dielectric film can be about or greater than 7 or 8. A semiconductor device can be formed by hybrid bonding the dielectric film of the structure to a dielectric film of a similar structure. A dielectric film-oxide-metal-substrate structure can be formed with the dielectric film on the top surface of the stack. A multi-material etch can be used etch features in the dielectric film and the oxide in a dielectric film-oxide-metal-substrate stack. A chemical-mechanical polishing technique can be used to precisely form the surface of the structure in preparation for hybrid bonding.

Abstract: The present invention relates to a light-emitting diode (LED) which comprises a light-emitting layer, an upper electrode, a lower electrode, a first semiconductor layer, a second semiconductor layer, a third semiconductor layer, and a low refractive index dielectric layer. The upper electrode and the lower electrode are respectively disposed on two opposite sides of the light-emitting layer. The first semiconductor layer is disposed between the light-emitting layer and the upper electrode. The second semiconductor layer is disposed between the light-emitting layer and the lower electrode. The third semiconductor layer is disposed between the second semiconductor layer and the lower electrode. The low refractive index dielectric layer is disposed to surround the lower electrode. The upper electrode is vertically overlapped with the lower electrode and the first semiconductor layer and the third semiconductor layer are electrically opposite to the second semiconductor layer.

Abstract: An electronic device includes a radiator, a feed point, and a ground point. The plurality of radiators include a first radiator, a second radiator, and a third radiator. A first end of the first radiator and a first end of the second radiator are opposite to each other, and form a first gap. A second end of the first radiator and a first end of the third radiator are opposite to each other, and form a second gap. The feed point and the ground point are disposed on the first radiator. The ground point is disposed in a central region of the plurality of radiators or the first radiator, and the feed point is disposed between the central region and the first end of the first radiator. Gaps are formed between a plurality of radiators, so that a broadband antenna can be implemented.

Abstract: A method is provided that includes: obtaining a list of browsed information of each of a plurality of first users and a first vector corresponding to each list of browsed information; clustering the first vectors to obtain one or more vector clusters and a center vector of each vector cluster; determining one or more information clusters respectively corresponding to the one or more vector clusters; obtaining a list of browsed information of a second user in response to a browsing request of the second user; determining, in response to determining that the list of browsed information of the second user is not void, a second vector corresponding to the list of browsed information of the second user; calculating a similarity between the second vector and each center vector, to determine an information cluster matched with the second vector; and providing recommendations for the second user based on the information cluster.

Abstract: An image display method and apparatus are provided. The method includes: determining a target display position of a target object in an original image and a first size of a display region of an ink screen (102); generating a monochrome image with the first size according to the original image, where color values of pixel points in the monochrome image include at least one standard color value, and the target object is located at a target display position in the monochrome image (104); sending the monochrome image to the ink screen, so that the monochrome image is displayed by the ink screen in the display region (106). This method can improve the definition of the monochrome image displayed by the ink screen.

Abstract: This application provides a base station antenna and a base station. The base station antenna includes a first feeder, a second feeder, a first transmission line, a second transmission line, and a radiator. A first end of a first radiation arm is electrically connected to a first end of a second radiation arm through a first wire. A first end of a third radiation arm is electrically connected to a first end of a fourth radiation arm through a second wire. A second end of the first radiation arm is electrically connected to a second end of the third radiation arm through a third wire. A second end of the second radiation arm is electrically connected to a second end of the fourth radiation arm through a fourth wire.

Abstract: An electroluminescence device, including an epitaxial layer, a first contact electrode, a bonding layer, a substrate, a first metal pad, a second contact electrode and a second metal pad, is provided. The epitaxial layer has a trench which vertically divides the epitaxial layer into a first region and a second region so that the first region and the second region are separated from each other. The first contact electrode is disposed over the epitaxial layer and has an aperture. The bonding layer is disposed over the first contact electrode. The substrate is disposed over the bonding layer. The first metal pad is disposed below the first region and extends vertically to be electrically connected to the first contact electrode. The second contact electrode is disposed below the second region. The second metal pad is disposed below the second region with the second contact electrode therebetween.

Abstract: Provided is a system for monitoring a stage. The system comprises: a plurality of detection devices, a central control apparatus, and a presentation apparatus, wherein the plurality of detection devices are configured to detect environmental information of an environment where at least part of the stage apparatuses are located in real time, and to send the detected environmental information; the central control apparatus is connected to the at least part of the stage apparatuses and the presentation apparatus respectively, and configured to receive the environmental information, to acquire apparatus state information of at least one of the stage apparatuses and the detection devices, and to present the environmental information and the apparatus state information through the presentation apparatus.

Abstract: Disclosed are a lens structure, a photographic device and a focusing method of lens. The lens structure includes a lens barrel, a lens assembly, a drive mechanism, a position detection device and a control device. The lens barrel is extended along a first direction. The lens assembly includes a lens group configured to be movable along the first direction. The drive mechanism is fixedly connected to the lens group and configured to drive the lens group to move along the first direction. The position detection device configured to detect a position of the lens group in real time. The control device is electrically connected to the position detection device and the drive mechanism, and is configured to control the drive mechanism to work according to the position detection device to adjust the position of the lens group.

Abstract: A wearable device includes a conductive frame and a parasitic stub. A first ground point and a feed point are disposed on the frame. The parasitic stub has a first slot and a second slot. The parasitic stub and the frame each have a ring shape, and are spaced along a ring circumference. The parasitic stub is divided into a first parasitic part and a second parasitic part with approximately equal lengths by the first slot and the second slot.