Abstract: A detachable and interchangeable hand-and-foot massager for separate use includes a main body and a massager, the massager includes a hand massager and a foot massager. The hand massager or the foot massager is detachably mounted on the main body. The main body includes an upper cover of the main body, a base of the main body, an inflation and deflation device, and a massage device for hands and foot. The upper cover of the main body is buckled on the base of the main body, and the upper cover of the main body is provided with an embedded slot. The hand massager or the foot massager includes a massager upper cover, a massager bottom cover and an airbag assembly. The massager bottom cover is provided with a block, and the connector is fixedly mounted in the block. The main body and the massager can freely disassembled and combined.

Abstract: An image retrieval method includes: respectively performing a dimension reduction operation on convolutional layer features of an image to be retrieved to obtain dimension-reduced features; clustering the dimension-reduced features to obtain a plurality of clustering features; performing feature fusion on the plurality of clustering features to obtain a global feature; and retrieving, on the basis of the global feature, the image to be retrieved from a database.

Abstract: Embodiments relate to a display device that includes a control circuit, an array of light emitting diode (LED) zones, and an array of driver circuits that are distributed in the display area. An integrated LED and driver circuit includes one or more LEDs of a LED zone and one or more driver circuits integrated on a substrate in a single package with the LED and driver circuit vertically stacked over a substrate. An addressing scheme configures addresses of the driver circuits using address lines that connect between adjacent driver circuits. Control data is provided to the driver circuits via a power line communication signal that provides both a supply voltage and digital data modulated onto the supply voltage.

Abstract: A heat conducting device in a vehicle whereby heat in the body or shell of the vehicle is transferred to the ground includes a control device, a heat transferring device, and a driving device. The heat transferring device is in the vehicle and is connected to the shell of the vehicle when the vehicle is flameout, the driving device is coupled to the control device and the heat transferring device, such that the heat transferring device is extended downwards from the vehicle, until the heat transferring device contacts the ground, thereby heat of the shell of the vehicle is transferred to the ground.

Abstract: A lens module includes a voice coil motor, a lens received in the voice coil motor, a light emitting element adapted for emitting lights, a prism, and a DLP sensor. The prism faces and inclines towards the light emitting element. The prism is configured to reflect the lights from the light emitting element to the DLP sensor. The voice coil motor is configured to automatically adjust a distance between the lens and the DLP sensor according to a sharpness of the pattern and send electronic signals to the DLP sensor. When the DLP sensor receives the electronic signals, the DLP sensor rotates to change states of the DLP sensor according to the electronic signals and control an amount of the lights reflected into the lens according to the electronic signals thereby forming a pattern with a higher degree of sharpness than the pattern previously captured.

Abstract: A mechanical positioning structure includes a first positioning mechanism, a fixing post arranged through a central axis of the first positioning mechanism, a first driving mechanism, a second positioning mechanism rotationally arranged on the fixing post and coupled to the first driving mechanism, a second driving mechanism, and a platform. One end of the first driving mechanism is fixed on the fixing post. Another end of the first driving mechanism is slidably arranged on the first positioning mechanism. The second driving mechanism is arranged on the second positioning mechanism. The platform is arranged on the second driving mechanism. The first driving mechanism drives the second positioning mechanism to move on a surface of the first positioning mechanism and rotate the second positioning mechanism around the fixing post. The second driving mechanism drives the platform to move on the second positioning mechanism.

Abstract: An absorbable stent includes an absorbable matrix. The matrix includes a number of wave-shaped rings connected by connection units and arranged in an axial direction. The wave-shaped ring includes a number of waves arranged in a circumferential direction. A peak, a valley and a support connecting the peak and the valley form the wave. Two adjacent wave-shaped rings and the connection unit form a closed side supporting unit. The matrix has a volume of [4, 40] ?m per unit blood vessel area. The absorbable stent has sufficient radial supporting strength for clinical applications. Moreover, the volume of the matrix per unit blood vessel area is less than volumes of existing stents. When the absorbable stent and existing stents are made of the same material, the absorbable stent has a shorter degradation and absorption cycle.

Abstract: Disclosed are a laser protective film and a laser protective device comprising the same. The laser protective film comprises, stackingly disposed: a first liquid crystal polymer layer for reflecting left-hand polarized light, a second liquid crystal polymer layer for reflecting right-hand polarized light, and a third liquid crystal polymer layer for absorbing incident laser. In the above way, the laser protective film of the present disclosure has a large angle of protection, high flexibility. In addition, it is easy to find any damage to the laser protective film of the present disclosure. Moreover, it can make modification to existing equipment. Thus, the present disclosure has a good application prospect in many fields such as laser goggles, window glass and the like.

Abstract: Embodiments of the present application relate to the field of ground detection, and disclose a ground detection device, a robot and a ground detection method. The ground detection device includes a control circuit, a signal trigger circuit, a signal sampling circuit and an amplification circuit. Where, the signal sampling circuit is configured to acquire reflected light of the optical signal reflected by a detection area and ambient interference light, and to generate a second voltage signal according to the reflected light and the ambient interference light; the amplification circuit is configured to amplify the second voltage signal to acquire a third voltage signal; and the control circuit is configured to compare the third voltage signal with a preset voltage, and to determine whether there is a ground within the detection area according to a comparison result.

Abstract: A viewing angle switching method is provided. The viewing angle switching method includes: displaying a first user interface, the first user interface including an environment picture and a viewing angle switching region, the environment picture including a three-dimensional virtual environment observed from a first viewing angle direction by a virtual object, and the viewing angle switching region including a viewing angle jumping element used for viewing angle jumping; receiving a viewing angle jumping signal triggered on a target viewing angle jumping element, the at least one viewing angle jumping element including the target viewing angle jumping element; determining a second viewing angle direction corresponding to the target viewing angle jumping element; and displaying a second user interface, the second user interface including the environment picture of the three-dimensional virtual environment observed from the second viewing angle direction by the virtual object.

Abstract: An image processing method performed at a computing device includes: identifying, using face recognition, one or more faces, each face corresponding to a respective person captured in a first image; for each identified face: extracting a set of profile parameters of a corresponding person in the first image; and selecting, from a plurality of image tiles, a first image tile that matches the face of the corresponding person in the first image in accordance with a predefined correspondence between the set of profile parameters of the corresponding person and a set of pre-stored description parameters of the first image tile; generating a second image by covering the faces of respective persons in the first image with their corresponding first image tiles; and sharing the first image and the second image in a predefined order via a group chat session.

Abstract: A package circuit structure includes a metal board including a first surface and a second surface, a plurality of embedded components, an insulating layer, and two antenna circuit boards. At least one first groove is recessed from the first surface. At least one second groove is recessed from the second surface. The first groove and the second groove are spaced with each other along a first direction perpendicular to a thickness direction of the metal board. Each embedded component is mounted in the first groove or the second groove. The insulating layer covers the first surface and the second surface and fills the first groove and the second groove. The antenna circuit boards are respectively stacked on two opposite sides of the insulating layer. Each antenna circuit board includes at least one antenna and at least one ground wiring. The metal board is electrically connected to each ground wiring.

Abstract: A sealed electrical plug comprises at least one temperature sensor for monitoring an internal temperature of the electrical plug. The electrical plug further comprises a data cable that is wrapped by a shield for screening electrical noise so as to accurately capture and convey temperature data. The electrical plug further comprises a housing or holder for receiving the at least one temperature sensor, wherein the housing is capable of being embedded within an inner-mold of the electrical plug and positioned close to at least one pin. One or more seals may be placed at junctions between the at least one pin and the inner-mold and a cable for the data cable to seal the inner-mold from air, moisture and particles.