Abstract: A generation system and method for a high-precision three-dimensional navigation map of a fully mechanized mining surface, applicable to use in the technical field of unmanned mining. The generation system comprises a channel wave seismometer, a laser radar, a combined navigation device, a ground penetrating radar, and a data processing unit; the data processing unit acquires data collected by sensors; perform coordinate conversion, feature fusion and consistency processing on the collected data to generate a Delaunay triangle network of a coal seam, a fault/fold, and a roadway; draw a high-precision profile map of the triangle map, calculate a topological relation of the profile map, generate a topological data structure of the profile map, establish a navigation information automatic query database platform based on the high-precision profile map, and construct the high-precision three-dimensional navigation map of the fully mechanized mining surface.

Abstract: A single groove single-sided fastener comprises: a rivet consisting of a rivet head, a polish rod, a locking groove, a tail pulling groove and a tail tooth in sequence, and a lantern ring consisting of a sleeve and a dead head; a tail of the rivet is of a single groove short-tail structure, a ratio of a length of the tail pulling groove to a total length of the tail tooth is 0.1˜1.5, an included angle between a bottom generatrix of the tail pulling groove and an axis of the rivet is ?30°˜0°, two axial ends of the bottom of the tail pulling groove and the tail of the tail tooth are of a fillet transition structure, a ratio of a length of a straight part of the tail tooth to the total length of the tail tooth is 0.1˜1.

Abstract: A single groove single-sided fastener comprises: a rivet consisting of a rivet head, a polish rod, a locking groove, a tail pulling groove and a tail tooth in sequence, and a lantern ring consisting of a sleeve and a dead head; a tail of the rivet is of a single groove short-tail structure, a ratio of a length of the tail pulling groove to a total length of the tail tooth is 0.1˜1.5, an included angle between a bottom generatrix of the tail pulling groove and an axis of the rivet is ?30°˜?0°, two axial ends of the bottom of the tail pulling groove and the tail of the tail tooth are of a fillet transition structure, a ratio of a length of a straight part of the tail tooth to the total length of the tail tooth is 0.1˜1.

Abstract: The invention discloses a pulling rivet for fasten-connecting a conductive material. It consists of a rivet and a lantern ring, wherein the rivet comprises a dead head, a polish rod, a locking groove, a pulling groove and a short tail, the lantern ring comprises a flange, a deformation area and a clamping tooth, and a sharp protrusion is arranged on a contact surface of an inner side of the dead head and a fasten-coupling piece. The sharp protrusions of the present invention can be embedded into the surface of the fastening piece to prevent the sliding between the fasten-coupling piece and the rivet, and because the sharp protrusions are embedded into the surface of the fasten-coupling piece to form a tightly fitted whole, which improves the conductivity of the rivet and the frame.

Abstract: There is provided an imidazole derivative, wherein the structural formula of the imidazole derivative is as represented by formula I: There is further provided a material containing the imidazole derivative and an organic light-emitting device containing the imidazole derivative. The imidazole derivative has an excellent carrier transport capacity, and the organic light-emitting device produced by using the material has obviously reduced starting voltage and improved luminous efficiency and luminance; and due to the features such as relatively good film-forming performance and simple material synthesis and purification methods which are applicable to mass production, the imidazole derivative is an ideal option for an electron transport material of organic light-emitting devices.

Abstract: The present invention relates to an organic electroluminescent material, an organic electroluminescent device, and a method for preparing the organic electroluminescent device. Due to comprising an organic compound A with 3.0 eV>ET?2.0 eV and a compound B of M(LA)x(LB)y(LC)z, the organic electroluminescent material of the present invention has the advantages of an increased luminescence lifetime and/or a reduced operating voltage on the basis of maintaining other electronic properties at a certain level.

Abstract: A generation system and method for a high-precision three-dimensional navigation map of a fully mechanized mining surface, applicable to use in the technical field of unmanned mining. The generation system comprises a channel wave seismometer, a laser radar, a combined navigation device, a ground penetrating radar, and a data processing unit; the data processing unit acquires data collected by sensors; perform coordinate conversion, feature fusion and consistency processing on the collected data to generate a Delaunay triangle network of a coal seam, a fault/fold, and a roadway; draw a high-precision profile map of the triangle map, calculate a topological relation of the profile map, generate a topological data structure of the profile map, establish a navigation information automatic query database platform based on the high-precision profile map, and construct the high-precision three-dimensional navigation map of the fully mechanized mining surface.

Abstract: Systems and methods can utilize a conformer model to process a data set for various data processing tasks, including, but not limited to, speech recognition, sound separation, protein synthesis determination, video or other image set analysis, and natural language processing. The conformer model can use feed-forward blocks, a self-attention block, and a convolution block to process data to learn global interactions and relative-offset-based local correlations of the input data.

Abstract: An image depth estimation method includes detecting a weak texture area of a target image, calculating depths of feature points of the weak texture area, performing fitting based on the feature points to obtain a depth plane, and calculating depths of pixel points of the weak texture area based on the depth plane. The depths of feature points of the weak texture area are calculated according to coordinates of the feature points of the weak texture area in the target image and in a reference image, and a camera attitude change of one or more camera devices between capturing the target image and capturing the reference image.

Abstract: A calibration system and a method for panoramic photographing device parameter, including: an image acquisition module, a parameter solver module connected with the image acquisition module, and a data analysis module connected with the parameter computation module; the image acquisition module is configured to send an instruction to cause N cameras of the panoramic photographing device to acquire and store M sets of images synchronously and consecutively; the parameter solver module configured to sequentially read out the M sets of images from the image acquisition module, and to separately process the M sets of images, and to acquire M corresponding device parameters for storage and delivery; and the data analysis module configured to receive the M corresponding device parameters sent by the parameter solver module, and to perform data analysis to the M corresponding device parameters, and to acquire and store an optimal solution of the calibration parameters.

Abstract: The present invention relates to an organic electroluminescent material, an organic electroluminescent device, and a method for preparing the organic electroluminescent device. Due to comprising an organic compound A with 3.0 eV>ET?2.0 eV and a compound B of M(LA)x(LB)y(LC)z, the organic electroluminescent material of the present invention has the advantages of an increased luminescence lifetime and/or a reduced operating voltage on the basis of maintaining other electronic properties at a certain level.

Abstract: A communication method including a first device sending a registration request to a second device through a Universal Serial Bus (USB) interface of the first device. The registration request requests to register the first device with the second device and includes registration information of the first device. The registration information includes a registration key. The method further includes the first device receiving a registration response through the USB interface. The registration response is sent by the second device according to the registration key and confirms the first device is successfully registered with the second device. The method also includes the first device communicating with the second device via the USB interface.

Abstract: A calibration system and a method for panoramic photographing device parameter, including: an image acquisition module, a parameter solver module connected with the image acquisition module, and a data analysis module connected with the parameter computation module; the image acquisition module is configured to send an instruction to cause N cameras of the panoramic photographing device to acquire and store M sets of images synchronously and consecutively; the parameter solver module configured to sequentially read out the M sets of images from the image acquisition module, and to separately process the M sets of images, and to acquire M corresponding device parameters for storage and delivery; and the data analysis module configured to receive the M corresponding device parameters sent by the parameter solver module, and to perform data analysis to the M corresponding device parameters, and to acquire and store an optimal solution of the calibration parameters.

Abstract: The present application provides a method and a device for expanding a lens image into a panoramic image, the method includes: step A, preparing an original mesh model, calculating new mapping coordinate values, performing coordinate value transformation for the original mapping coordinate values of the original mesh model and the calculated new mapping coordinate values, and generating a new mesh model and storing the new mesh model; and step B, preparing a lens image to be expanded, assigning the lens image to be expanded to the new mesh model in step A, and rendering the new mesh model by a GPU to obtain a panoramic image and store the panoramic image.

Abstract: There is provided an imidazole derivative, wherein the structural formula of the imidazole derivative is as represented by formula There is further provided a material containing the imidazole derivative and an organic light-emitting device containing the imidazole derivative. The imidazole derivative has an excellent carrier transport capacity, and the organic light-emitting device produced by using the material has obviously reduced starting voltage and improved luminous efficiency and luminance; and due to the features such as relatively good film-forming performance and simple material synthesis and purification methods which are applicable to mass production, the imidazole derivative is an ideal option for an electron transport material of organic light-emitting devices.

Abstract: Disclosed are a method for preparing a series of carbazole derivatives and use thereof in organic light-emitting diodes. The structure of the material is as shown in Formula I. An organic electroluminescent device prepared by the material can have a significantly improved power efficiency and an external quantum efficiency for the device and an extended life for an orange light or red light device; moreover, the material has characteristics, for example, methods for the synthesis and purification of the material are simple and suitable for large-scale production, and is an ideal choice as a luminescent material for organic electroluminescent devices. The use of the organic electroluminescent diode material as a carrier transport material or as a luminescent material alone or as a host material in a light-emitting layer also falls within the scope of protection.

Abstract: An energy efficient rapid single flux quantum (ERSFQ) logic register wheel includes a circular shift register having a plurality of destructive read out (DRO) cells. Each entry of the circular shift register includes a data block, a tag, and a valid bit. A compare and control logic is coupled to the circular shift register to compare a source specifier or a destination register specifier against a register tag stored in the wheel following each cycle of the register wheel. At least one or more read ports and at least one or more write ports are coupled to the circular shift register to write to or to read from a different entry each in the register wheel following each cycle of the register wheel. A RSFQ clearable FIFO with flushing and a crosspoint memory topology for integrating MRAM devices with ERSFQ circuits are also described.

Abstract: The present application provides a method and a device for expanding a lens image into a panoramic image, the method includes: step A, preparing an original mesh model, calculating new mapping coordinate values, performing coordinate value transformation for the original mapping coordinate values of the original mesh model and the calculated new mapping coordinate values, and generating a new mesh model and storing the new mesh model; and step B, preparing a lens image to be expanded, assigning the lens image to be expanded to the new mesh model in step A, and rendering the new mesh model by a GPU to obtain a panoramic image and store the panoramic image.

Abstract: A data processing apparatus includes a multi-level memory system, one or more first processing unit coupled to the memory system at a first level and one or more second processing units each coupled to the memory system at a second level. A first reorder buffer maintains data order during execution of instructions by the first and second processing units and a second reorder buffer maintains data order during execution of the instructions by an associated second processing unit. An entry in the first reorder buffer is configured, dependent upon an indicator bit, as an entry for a single instruction or a pointer to an entry in the second reorder buffer. An entry in the second reorder buffer includes instruction block start and end addresses and indicators of input and output register. Instructions are released to a processing unit when all inputs, as indicated by the reorder buffers, are available.

Abstract: An energy efficient rapid single flux quantum (ERSFQ) logic register wheel includes a circular shift register having a plurality of destructive read out (DRO) cells. Each entry of the circular shift register includes a data block, a tag, and a valid bit. A compare and control logic is coupled to the circular shift register to compare a source specifier or a destination register specifier against a register tag stored in the wheel following each cycle of the register wheel. At least one or more read ports and at least one or more write ports are coupled to the circular shift register to write to or to read from a different entry each in the register wheel following each cycle of the register wheel. A RSFQ clearable FIFO with flushing and a crosspoint memory topology for integrating MRAM devices with ERSFQ circuits are also described.