Abstract: The present disclosure provides a projector. The projector includes a light source, a display panel, a first lens and a projection lens. The projector is configured such that the light emitted by the light source can sequentially pass through the display panel, the first lens, the projection lens and then exit. The projector includes a system optical axis, and the optical axis of the display panel coincides with the system optical axis; the optical axis of the projection lens is arranged parallel to the system optical axis with a distance therefrom.

Abstract: Disclosed are a reel changing and belt receiving module, a reel changing and automatic belt receiving mechanism, a winding device and a production line. The reel changing and belt receiving module includes: a horizontal moving assembly and a forward and backward moving assembly. An output end of the forward and backward moving assembly is provided with a belt receiving roller and a belt receiving roller driven assembly, and a cutter assembly is provided on the belt receiving roller. An output end of the belt receiving roller driven assembly is connected to one end of the belt receiving roller and is configured to drive the belt receiving roller to rotate. The reel changing and automatic belt receiving mechanism includes an installation main plate provided with a rotation roller a first roller cylinder and a second roller cylinder.

Abstract: The present invention discloses a neural network optimization method. An operator to be replaced is selected from multiple operators in a network layer according to a predetermined condition, and the operator to be replaced is replaced by multiple equivalent operators according to a calculation function corresponding to the operator to be replaced, wherein the multiple equivalent operators include a target operator. Pre-calculating is performed for a first operator among the multiple equivalent operators, and the calculation result is inputted into the target operator. A second operator is identified according to data change conditions of the multiple equivalent operators, and the second operator is combined with the target operator to complete optimization of a neural network model. The present invention can further perform lossless conversion of the operators in the neural network, further improving calculation performance on the basis of a simplified network structure.

Abstract: The present disclosure relates to the field of battery technology, and discloses battery test tooling, and a use method and a control method for battery test tooling. The battery test tooling can improve the versatility of the battery test tooling. The battery test tooling comprises: a bracket, at least two sets of driving assemblies, and pressing members, wherein the driving assemblies are mounted on the bracket; and each set of driving assembly is provided with the pressing member, a pressing face on the pressing member that is away from the bracket being used to abut against a battery to be tested; and each of the pressing members is movable in a direction away from or approaching the bracket under the drive of the driving assembly. The battery test tooling provided in the present application is used to test the battery to be tested.

Abstract: A fixing belt adjusting mechanism and a wearable device are provided. The fixing belt adjusting mechanism includes a fixing base, a ratchet wheel, a driving member, a knob, a reset piece and a transmission wheel. The driving member may be rotated by the knob, so that a pawl drives the ratchet wheel to rotate in a first direction. Both ends of the reset piece are respectively connected with the fixing base and the ratchet wheel, so that the ratchet wheel may be driven to rotate and reset in a second direction. The transmission wheel coaxially and fixedly connected with the ratchet wheel may drive a first fixing belt and a second fixing belt to move towards or away from each other through rotation. Therefore, the fixing belt adjusting mechanism may achieve the effect of synchronously adjusting two fixing belts using a simple structure, which facilitates improving the user experience.

Abstract: The present disclosure provides a projection device, including: a housing, a light source component, and a projection lens; an accommodating space is formed inside the projection device; the projection device further includes a second mirror, a second fan and a lens component in the accommodating space; the second mirror is arranged on a light outgoing side of the light source component and is configured to reflect light emitted from the light source component into the lens component, and the lens component is configured to collimate light; the accommodating space includes an air flowing space including a first subspace and a second subspace; the first subspace is defined by the light source component, the second mirror, the lens component and a part of the housing, and the second subspace is around the first subspace; the second fan is configured to promote internal air within the air flowing space to circulate.

Abstract: Methods and apparatuses are provided for performing surgery and other interventional procedures on human and non-human animals with a semi-autonomous and/or fully autonomous robotic system. The methods and apparatuses include a system for controlling magnetic fields to dynamically detect the location of magnetizable tools and to manipulate said tools in order to obtain a favorable therapeutic or diagnostic outcome.

Abstract: The invention relates to two dimensional (2D) heterostructures and methods of fabricating the same. The 2D hetero structures are integration of borophene with graphene and 2D lateral and vertical hetero structures with sharp and rotationally commensurate interfaces. The rich bonding configurations of boron indicate that borophene can be integrated into a diverse range of 2D heterostructures.

Abstract: Examples of the present disclosure provide a device management method applied to a first device in a self-organizing network and a network device.

Abstract: Provided is a sound generating apparatus including a rear housing, a speaker assembly, a front housing, and a vent frame. The rear housing is provided with an accommodation groove and a rear chamber groove. The outer wall of the rear housing is provided with a vent hole. The speaker assembly is disposed in the notch of the rear chamber groove and covers the rear chamber groove to form a rear sound chamber. A front sound chamber is formed on the side of the front housing. The vent frame and the rear housing are assembled to form a rear vent channel whose two ends communicate with the rear sound chamber and the vent hole. The vent frame and the front housing are assembled to form a front vent channel whose two ends communicate with the front sound chamber and the vent hole.

Abstract: The application discloses a display module and a projector. The display module includes a light source, a first lens, a second lens, and a display panel, wherein the light source includes a light-emitting area, the display panel includes a display area, the light source emits a first light beam through the light-emitting area, the first lens refracts the first light beam into a second light beam, the second lens refracts the second light beam into a third light beam. The plane where the light-incident surface of the display panel is located includes a first irradiation area, and the first irradiation area includes a first effective irradiation area that is continuously distributed, the first effective irradiation area includes a strongest illumination position therein. The illumination intensity on the outer contour of the first effective irradiation area is I % of the strongest illumination position, I?45.

Abstract: Disclosed in the present invention are a device system and method having sintering flue gas CO catalytic heat exchange and medium-and-low-temperature SCR denitration connected in series. In the device system, a CO catalytic heat storage and exchange device is arranged to completely replace an original heat exchanger arranged after a raw desulfurized flue gas pipe. The method comprises respectively carrying out first CO catalytic conversion and second CO catalytic conversion on sintering flue gas and denitrated flue gas by means of the CO catalytic heat storage and exchange device, thereby increasing CO conversion efficiency and reducing overall resistance of the system. In addition, the present invention takes both CO pollution control and carbon emission reduction into consideration and thus has good economic benefits and a good application prospect.

Abstract: A projection apparatus including: a light source component; a light polarization component for converting light from the light source component into first polarized light in a first polarization direction; a display panel on a side, away from the light source component, of the light polarization component for adjusting the polarization direction of the first polarized light to emit second polarized light in a polarization direction between the first polarization direction and a second polarization direction, the first polarization direction is perpendicular to the second polarization direction; a light reflective component on a side, away from the light polarization component, of the display panel for reflecting one of the polarized light in the first polarization direction and the polarized light in the second polarization direction; a projection lens, a light incident surface of which faces the light reflective component so as to receive light reflected by the light reflective component.

Abstract: A sterilizing and environment-friendly composite plating layer, a preparation method therefor, and a sterilizing and environment-friendly product. The sterilizing and environment-friendly composite plating layer comprises: a semi-bright nickel layer, a high sulfur nickel layer, and an environment-friendly white chromium composite sterilizing layer; the semi-bright nickel layer is disposed on a substrate that has a sterilizing requirement; the high sulfur nickel layer is disposed on a surface of the side of the semi-bright nickel layer away from the substrate; the environment-friendly white chromium composite sterilizing layer is disposed on a surface of the side of the high sulfur nickel layer away from the substrate; the environment-friendly white chromium composite sterilizing layer has a nano-needle structure and is formed by a sterilizing ammonium salt-containing composite raw material; and the concentration of the sterilizing ammonium salt in the composite raw material is 50 g/L to 100 g/L.

Abstract: A connecting cable includes a first end, a second end and a heat dissipation channel in communication with the first end and the second end. The first end is adapted to connect with a first component. The second end is adapted to connect with a second component. The present disclosure also discloses a cable connector, a charger, and a charger assembly having the connecting cable. Compared with the prior art, in the present disclosure, by providing the heat dissipation channel in the connecting cable, the heat generated by the electronic device can be discharged in time through the heat dissipation channel. Therefore, the heat dissipation performance is improved.

Abstract: An antiviral environment-friendly composite plating layer, a preparation method therefor, and an antiviral environment-friendly product. The antiviral environment-friendly composite plating layer includes: a semi-bright nickel layer, a microporous nickel layer and an environment-friendly black chromium composite antiviral layer; the semi-bright nickel layer is provided on a base material having antiviral requirements; the microporous nickel layer is provided on the surface of the side of the semi-bright nickel layer away from the base material; the environment-friendly black chromium composite antiviral layer is provided on the surface of the side of the microporous nickel layer away from the base material; the environment-friendly black chromium composite antiviral layer has a nanoneedle structure and is formed by a composite raw material containing an antiviral ammonium salt, and the concentration of the antiviral ammonium salt in the composite raw material is 50-100 g/L.

Abstract: This invention in one aspect relates to a method of synthesizing a self-assembled mixed-dimensional heterostructure including 2D metallic borophene and 1D semiconducting armchair-oriented graphene nanoribbons (aGNRs). The method includes depositing boron on a substrate to grow borophene thereon at a substrate temperature in an ultrahigh vacuum (UHV) chamber; sequentially depositing 4,4?-dibromo-p-terphenyl on the borophene grown substrate at room temperature in the UHV chamber to form a composite structure; and controlling multi-step on-surface coupling reactions of the composite structure to self-assemble a borophene/graphene nanoribbon mixed-dimensional heterostructure. The borophene/aGNR lateral heterointerfaces are structurally and electronically abrupt, thus demonstrating atomically well-defined metal-semiconductor heterojunctions.

Abstract: Methods and apparatus to perform parallel double-batched self-distillation in resource-constrained image recognition environments are disclosed herein. Example apparatus disclosed herein are to identify a source data batch and an augmented data batch, the augmented data generated based on at least one data augmentation technique. Disclosed example apparatus is also to share one or more parameters between a student neural network corresponding to the source data batch and a teacher neural network corresponding to the augmented data batch, the one or more parameters including one or more convolution layers to be shared between the teacher neural network and the student neural network. Disclosed example apparatus is further to align knowledge corresponding to the teacher neural network and the student neural network, the knowledge corresponding to the one or more parameters shared between the student neural network and the teacher neural network.

Abstract: A cell stacking apparatus includes a first limiting device, a second limiting device, and a third limiting device. The first limiting device is configured to limit a bottom face of a cell, the second limiting device is configured to limit a first side of the cell, and the third limiting device is configured to limit a second side of the cell, where the bottom face, the first side, and the second side intersect one another.

Abstract: An information determination method and apparatus. A specific implementation solution is: acquiring prescription review information (101), wherein the prescription review information comprises: prescription information issued by a doctor and review information 5 given by a pharmacist according to the prescription information; performing feature extraction on the prescription information and the review information to generate a feature data set corresponding to the prescription review information (102); and determining the feature data set according to current review rules to obtain review results corresponding to the prescription review information (103), wherein the review rules are used to characterize a correspondence between the feature data set and the review results, and the review rules are updated on the basis of training results of a classification decision model obtained by training.