Abstract: Disclosed is a fast self-adaptive rotary plug-in underwater force-bearing connector, which comprises a plug part and a socket part, wherein the plug part comprises a plug housing, a pin arranged in the plug housing, and a push-pull sleeve, a rotary sleeve, a front retaining ring, a ratchet lock nut and a rear retaining ring arranged outside the plug housing; the socket part comprises a socket housing and a jack arranged in the socket housing; the pin and the jack cooperate to connect the plug part and the socket part. The fast self-adaptive rotary plug-in underwater force-bearing connector of the present application can work under the working condition of a large tensile force and has a high reliability.

Abstract: Disclosed is a method for preparing oxetan-2-ylmethanamine, which belongs to the field of organic synthesis. [2-(1-ethoxyethoxy)methyl]propylene oxide is used as an initial raw material, and reacted in the presence of potassium tert-butoxide and trimethylsulfoxonium iodide; the resulting product is reacted with a sulfonyl compound and triethylamine; the resulting product is reacted with a compound of phthalimide; the resulting product is reacted with an amino group-containing compound, to obtain oxetan-2-ylmethanamine. The method according to the disclosure allows for an overall yield of not less than 30% in scale-up production (kilogram level), which is higher. Moreover, compared with the traditional method for preparing oxetan-2-ylmethanamine, a palladium-carbon catalytic hydrogenation step is not required, and dangerous chemical-sodium azide is not required in the method according to the disclosure.

Abstract: A display panel and a display apparatus, in which the display panel include sub-pixels, shift registers, and pixel driving circuits. The sub-pixels include first sub-pixels located in the first display area and second sub-pixels located in the second display area, the first sub-pixels are used for achieving the display of the first display area, and the second sub-pixels are used for achieving the display of the second display area. The shift register is configured to provide a control signal to the scanning line, so as to make the first sub-pixel emit light by controlling the first circuit. The pixel driving circuits include first circuits configured to drive the first sub-pixels, second circuits configured to drive the second sub-pixels, and dummy areas.

Abstract: A control circuit for controlling a power module is provided. The power module drives a processing circuit. The control circuit includes a first resistor, a second resistor, a trigger circuit, and a switch circuit. The first resistor is coupled between a first reference voltage and a setting input terminal. The second resistor is coupled between a second reference voltage and the setting input terminal. The trigger circuit provides a switching signal in response to an operating signal. The switch circuit transmits a control signal to the setting input terminal in response to a first voltage level, and stops transmitting the control signal in response to a second voltage level. The power module executes one of a first power supply mode and a second power supply mode in response to a voltage value. When the control signal is not received, the power module executes a third power supply mode.

Abstract: An example system includes: interface circuitry; programmable circuitry; and instructions to cause the programmable circuitry to: reserve first memory addresses of a host system, the first memory addresses reserved for emulation of a guest system, the guest system based on a first instruction set architecture that is different from a second instruction set architecture of the host system; reserve second memory addresses of the host system that are contiguous with the first memory addresses, the second memory addresses reserved for a first emulated memory access instruction associated with an overflow in the guest system; reserve third memory addresses of the host system for a second emulated memory access instruction associated with an underflow in the guest system; and set memory access privileges of the second and third memory addresses to prevent at least one of a read, a write, or an execution access for the second and third memory addresses.

Abstract: Multimodal systems are provided for managing safety in an industrial environment. The system comprises: (a) a computer vision component for generating a first output data; (b) a real-time locating component for generating a second output data about an object within the industrial environment and a mobile tag device deployed to the object; (c) a LIDAR component for generating a third output data; and (d) an edge computing device connected to the computer vision component, the real-time locating component and the LIDAR component via a local network, and is configured to: (i) receive a data stream including the first output data, the second output data and the third output data, (ii) process the data stream using a machine learning algorithm trained model to generate a safety related result and feedback data, and (iii) deliver the feedback data to the object via the mobile tag device.

Abstract: The present disclosure discloses a technique for quantitative detection of ?-galactosidase (?-GAL) based on surface-enhanced Raman spectroscopy (SERS), including the following steps: a. taking 180 ?L of each of a 5-bromo-4-chloro-3-indolyl ?-D-galactoside (BCIG) solution, a ?-GAL solution, and dimethylsulfoxide (DMSO); b. preparing a plurality of ?-GAL samples with different activities in advance; c. adding an equal volume of a colloidal gold nanoparticle dropwise to each of the plurality of standard solutions with different activities, and conducting SERS; d. mixing a seawater sample to be tested with BCIG, incubating a resulting mixture to allow a reaction, adding DMSO and a colloidal gold nanoparticle, and directly detecting SERS signals of a product and the DMSO; and e. comparing the SERS signals obtained in step d with the standard curve to obtain an activity of the seawater sample to be tested.

Abstract: A data processing method and apparatus, applied to the field of electronic maps. Coverage information of a roadside device is stored in a map, so that content of the map is enriched, and the map can meet a higher-level use requirement of a user. The coverage information includes coverage region information that indicates at least one coverage region of the roadside device and coverage capability information that indicates a coverage capability of the roadside device in the at least one coverage region. The coverage information can be used to generate a control signal for controlling a vehicle, so that safety of autonomous driving or assisted driving can be improved.

Abstract: The present disclosure discloses an image dithering method having a random dithering mechanism. Each of pixel blocks of an input image is set to be an under-calculation block to perform steps outlined below. (A) A selected parameter look-up table is retrieved from parameter look-up tables. (B) A space reference parameter is generated according to a space parameter of the under-calculation block and/or a time reference parameter is generated according to a time parameter in an image stream. (C) A matrix number is looked up from the selected parameter look-up table according to the space reference parameter and/or the time reference parameter. (D) A selected dithering matrix is retrieved from according to the matrix number. (E) The selected dithering matrix and the under-calculation block are superimposed to generate a dithered block. Dithered blocks corresponding to the pixel blocks generated according to steps (A)-(E) are outputted as a dithered image.

Abstract: Generating first map information, where the first map information includes information about a first reference object set, and the information about the first reference object set indicates a first identifier, in a geographic area, of each reference object in at least one reference object included in the first reference object set, and indicates a first position of each reference object in the at least one reference object. The first map information is generated, and the first map information indicates related information of each reference object in the first reference object set, to implement a manner of expressing the related information of the reference object more abundantly, so that maps provided by different map vendors may use reference objects in the first map information to perform position expression on an element or an event.

Abstract: A map data processing method adds, to a map, a new type of map information, namely, shadow information that describes a shadow region, where content indicated by the shadow information and a data organization form in the map such that the map can record at least one of a geographical location, a shape, a size, a shadow degree, a reliability degree, a formation cause, and a change with time of the shadow region.

Abstract: The present disclosure provides an organic electroluminescent device and a display device, belonging to the field of display technology, which can solve the problem of poor luminescent efficiency and short life of the existing organic electroluminescent devices. The organic electroluminescent device of the present disclosure comprises: a first electrode and a second electrode disposed opposite to each other, and a light-emitting layer located between the first electrode and the second electrode; the light-emitting layer comprising: a first compound, a second compound and a third compound; wherein the first compound satisfies a first general formula; the third compound satisfies a second general formula; and the second compound has a difference between a triplet energy level and a singlet energy level of less than or equal to 0.3 eV.

Abstract: The present disclosure relates to information generation apparatuses and methods and information use apparatuses and methods. An example method includes generating and sending first information, where the first information indicates a geographical area, a relative distance between a plurality of location points in a location point set in the geographical area, and at least one location point that belongs to the location point set, the at least one location point is for determining a location reference point.

Abstract: A display panel and a display apparatus. The display panel includes a first display region, a second display region, and a third display region. A light transmittance of the first display region is greater than that of the third display region. The display panel includes: a plurality of first sub-pixels distributed in the first display region; a plurality of second sub-pixel groups distributed in the second display region, a second sub-pixel group includes a plurality of second sub-pixels; a plurality of third sub-pixels distributed in the third display region, a distribution density of the plurality of third sub-pixels is greater than a distribution density of the plurality of first sub-pixels; a total area of orthographic projections of the plurality of second sub-pixels in the second sub-pixel group is equal to an area of an orthographic projection of a single first sub-pixel.

Abstract: A method for generating communication capability information includes obtaining first communication status indication information used to indicate a plurality of terminal devices to establish a communication connection to a first roadside device at a plurality of position points; determining, based on the first communication status indication information, a first distribution status of the plurality of position points indicated by the first communication status indication information around the first roadside device; and generating first communication capability information of the first roadside device based on the first distribution status.

Abstract: A map generation method includes generating first information, where the first information indicates that a first event in a first tile is associated with a second tile, the first event is a dynamic event in a map, and the first tile and the second tile are two different tiles in the map; and storing the first information.

Abstract: A method includes obtaining a roadside sensing result that indicates a first group of location points that are of a traffic participant sensed by a first roadside device in a preset time period, and a multi-source fusion sensing result that indicates a second group of location points obtained by fusing a plurality of groups of location points that are of the traffic participant and that are obtained by a plurality of sensing devices in the preset time period; matching the roadside sensing result with the multi-source fusion sensing result; and generating first sensing capability information of the first roadside device based on the matching result.

Abstract: In a method of generating an event map, a processing device obtains first information that indicates that there is an association relationship between a first event and a second event. The first information comprises association type information that indicates a type of the association relationship, and the first and second events are events in a map. The processing device then stores the first information as data of the map.