Abstract: An optical module including an upper shell part, a circuit board, a base, and a light reception component and a light emission component respectively disposed on upper and lower surfaces of the base; a base mounting portion is formed on the surface of the circuit board, through which the base is secured to the circuit board. In order to increase heat dissipation effect of the base, a protrusion is formed on an upper surface of the base, which protrudes towards and is in thermal connection with the upper shell part, conducting heat through the base. To dissipate heat generated by the light emission component more effectively, the light emission component is disposed on a lower surface of the base. Heat dissipation effect of the base is improved by forming the protrusion on the upper surface of the base and using it as a heat dissipation protrusion.

Abstract: Methods, devices, and media for operating a robot arm are provided. In one method, receive a language description for specifying a target implemented by the robot arm; obtain a current state of the robot arm; and determine, according to an action model, an action to be performed by the robot arm based on the language description and the current state. With the example implementation of the present disclosure, the problem of insufficient training data of the robot arm may be alleviated. Further, the pre-trained action model may obtain the basic knowledge about the association relationship between the language description and the person action, may obtain a more accurate action model, and further obtain the action of the robot arm matching the language description in a more efficient manner.

Abstract: A LED lighting device, comprising: a base which has a bottom plate and a side wall, a cavity being formed between the bottom plate and the side wall; an optical component which covers one side of the base in a light-emitting direction of the LED lighting device; and a light source which is provided in the cavity of the base and comprises a circuit board and several LED arrays, the LED arrays comprising LED lamp beads fixed on the circuit board. The optical component comprises an optical unit, and the optical unit comprises a plurality of first optical components and a plurality of second optical components which correspond to the first optical components.

Abstract: A solid-state transformer includes a first phase circuit and a low-voltage side auxiliary power supply. The first phase circuit has an input end connected to a single-phase medium-voltage alternating current, and an output end connected to an output end of a low-voltage direct current. The first phase circuit includes N power units. Input ends of the N power units in the first phase circuit are connected in series and are connected to the single-phase medium-voltage alternating current. Output ends the N power units are connected in parallel and are connected to the output end of the low-voltage direct current. The low-voltage side auxiliary power supply is connected to the output end of the low-voltage direct current. First direct currents output from the output ends of the N power units are used to supply power to the low-voltage side auxiliary power supply.

Abstract: An optical system includes at least one first display module, at least one second display module, and a first optical element. The first optical element includes a first light incident surface, a second light incident surface, and a viewing surface. The first light incident surface is configured to transmit imaging light emitted from the at least one first display module into the first optical element and refract it onto the second light incident surface. The second light incident surface is configured to transmit imaging light emitted from the at least one second display module into the first optical element and refract it onto the viewing surface, and reflect the imaging light transmitted into the first optical element through the first light incident surface onto the viewing surface. The viewing surface is configured to transmit the imaging light emitted from all display modules to a human eye.

Abstract: The present application discloses an information processing method, a task execution method, an apparatus, a device and a medium. The method includes: processing, through a target visual encoding model in a target analysis model, obtained image information to be analyzed, to obtain a corresponding target sequence; fusing, through a target feature fusion model in the target analysis model, the target sequence and obtained text information to be analyzed, to obtain a target fusion result; processing the target fusion result through a target task analysis model in the target analysis model to obtain target task information; and controlling the action execution apparatus to perform an action corresponding to the target task information. The target analysis model is obtained by training an initial analysis model and the initial analysis model comprises an initial visual encoding model and an initial feature fusion model.

Abstract: A remote control device sends a patterned infrared signal to the display device. A display device receives the patterned infrared signal by using a plurality of infrared receivers. The display device obtains a projection pattern of the patterned infrared signal on a display screen. The display device determines a pointing position of the remote control device on the display screen based on the projection pattern. The display device displays a prompt mark in the pointing position of the display screen, where the prompt mark is used to prompt a user with the pointing position of the remote control device on the display screen.

Abstract: An adapter is configured to connect to a connector. The adapter includes a first housing and an electrical connector. The first housing is defined a first accommodating groove and a through hole communicating with each other. The electrical connector includes an electrical connecting portion, a supporting portion, and an elastic portion. The supporting portion connects the electrical connecting portion to the elastic portion. The supporting portion is accommodated in the through hole, and the electrical connecting portion extends through the first housing; the elastic portion extends from the supporting portion toward the first accommodating groove; the elastic portion is configured to be bent relative to the supporting portion, and the elastic portion is configured to electrically connect to a terminal. The present disclosure provides a connector and an opto-electric transmission assembly.

Abstract: A pre-connector is configured to detachably fix to an optical fiber group. The pre-connector includes a shell assembly and a limiting member. The shell assembly is configured to accommodate one end of the optical fiber group. The limiting member is clamped in the shell assembly and is configured to press against the optical fiber group to fix the optical fiber group to the shell assembly. The present disclosure further provides a connector including the pre-connector.

Abstract: Systems and methods herein describe a network system for federated searching. The systems and methods receive a search query, transmit the search query to search providers, receive search results corresponding to the search query, extract metadata from each search result, generate matched groupings comprising a first search results that have matching metadata, generate a ranked list of the matched groupings and a plurality of relevance scores, identify a second subset of search results based on the ranked list of matched groupings, and cause display of the second subset of search results on a graphical user interface of a computing device.

Abstract: The present disclosure provides a method and system for optimizing first-diffraction-order reconstruction of holograms, a device and a medium, and relates to the field of image processing. The method includes: acquiring a target image; determining a target image light field according to the target image; calculating a target diffraction field for the target image light field by performing backward propagation by a set distance; constructing a U-Net network model; and inputting the target diffraction field into a trained U-Net network model to acquire an optimized hologram. The trained U-Net network model is obtained by constructing a U-Net network model and training and optimizing the U-Net network model, thereby continuously improving the quality of the zero-diffraction-order reconstructed image of the initial hologram and finally achieving the effect of optimizing the first-diffraction-order reconstructed image of the hologram.

Abstract: A method and system for generating a random graphic training dataset and a hologram is disclosed, which relates to the technical field of image processing. The method for generating a random graphic training dataset includes: randomly generating a plurality of graphic datasets, where each of the graphic datasets includes a square, a circle and an equilateral triangle; for any graphic dataset, performing gradual filling on each graphic in the graphic dataset to obtain a gradual graphic dataset; and performing translation transformation on each graphic in the gradual graphic dataset for a predetermined number of times to obtain random graphics corresponding to the graphic dataset, and determining random graphics corresponding to all graphic datasets as a random graphic training dataset. More comprehensive training data can be provided and a training effect of a model can be improved.

Abstract: Disclosed is a method for preparing a bispecific antibody using an annular orbitally shaken bioreactor, which adjusts the rotational speed and the pH in cell culture conditions, and other culture conditions. It is found that the cell culture method of the present invention can maintain a high cell viability for a long time and prolong the culture time. Prolonging the culture time in an annular orbitally shaken reactor can obtain a higher cell density and a long-term high cell viability.

Abstract: Systems and methods herein describe a network system for federated searching. The systems and methods receive a search query, transmit the search query to search providers, receive search results corresponding to the search query, extract metadata from each search result, generate matched groupings comprising a first search results that have matching metadata, generate a ranked list of the matched groupings and a plurality of relevance scores, identify a second subset of search results based on the ranked list of matched groupings, and cause display of the second subset of search results on a graphical user interface of a computing device.

Abstract: A remote control device sends a patterned infrared signal to the display device. A display device receives the patterned infrared signal by using a plurality of infrared receivers. The display device obtains a projection pattern of the patterned infrared signal on a display screen. The display device determines a pointing position of the remote control device on the display screen based on the projection pattern. The display device displays a prompt mark in the pointing position of the display screen, where the prompt mark is used to prompt a user with the pointing position of the remote control device on the display screen.

Abstract: A system status control method and a portable terminal are described. The portable terminal includes a first system with a first interface and a second system with a second interface, and the first system and the second system are joined or separated through the first interface and the second interface. The method includes when the first system and the second system enter a joined-up status from a separated status, the first system and the second system exchanging respective system status information thereof; and the first system and the second system control the system status according to the system status information and based on a preset policy. When a master system and a slave system are combined or separated, automatic switch control may be performed on the system status according to a usage requirement of a user and based on the preset policy.

Abstract: A charging system for a mobile device includes a transmitter and a receiver. The transmitter includes (a) a first interface to a power source; (b) a second interface to the receiver; (c) a polarity detection circuit for detecting polarities of the; and (d) first and second switches controlled by the polarity detection circuit, wherein each switch selectively connects a terminal of the first interface to a terminal of the second interface. The receiver includes: (a) a first interface; (b) a second interface coupled to a device to be charged; and (c) a connection circuit between a terminal of the first interface and a terminal of the second interface, wherein the connection circuit is conductive when the voltage across these terminals is of a first polarity, and a second polarity otherwise.

Abstract: The present disclosure provides a display method and an electronic device. The method comprises: obtaining a third display content based on the first display content when the first electronic device is to be controlled by the second electronic device; and transmitting the third display content to the second electronic device to cause the second electronic device to display a fourth display content based on the third display content, the fourth display content being different from the first display content.