Abstract: The present application provides a VR-based standardized training system for multi-person online cooperated first-aid nursing of trauma, which is used for providing medical staff with an efficient and convenient-to-update and maintain standardized training environment for multi-person online cooperated first-aid nursing of trauma by introducing the VR technology, so as to significantly improve the training effect of the first aid of trauma of the medical staff.

Abstract: Additive manufacturing (AM) methods and devices for high-melting-point materials are disclosed. In an embodiment, an additive manufacturing method includes the following steps. (S1) Slicing a three-dimensional computer-aided design model of a workpiece into multiple layers according to shape, thickness, and size accuracy requirements, and obtaining data of the multiple layers. (S2) Planning a forming path according to the data of the multiple layers and generating computer numerical control (CNC) codes for forming the multiple layers. (S3) Obtaining a formed part by preheating a substrate, performing a layer-by-layer spraying deposition by a cold spraying method, and heating a spray area to a temperature until the spraying deposition of all sliced layers is completed. (S4) Subjecting the formed part to a surface modification treatment by a laser shock peening method.

Abstract: Additive manufacturing (AM) methods and devices for high-melting-point materials are disclosed. In an embodiment, an additive manufacturing method includes the following steps. (S1) Slicing a three-dimensional computer-aided design model of a workpiece into multiple layers according to shape, thickness, and size accuracy requirements, and obtaining data of the multiple layers. (S2) Planning a forming path according to the data of the multiple layers and generating computer numerical control (CNC) codes for forming the multiple layers. (S3) Obtaining a formed part by preheating a substrate, performing a layer-by-layer spraying deposition by a cold spraying method, and heating a spray area to a temperature until the spraying deposition of all sliced layers is completed. (S4) Subjecting the formed part to a surface modification treatment by a laser shock peening method.

Abstract: The present invention discloses a connecting rod-type lower limb exoskeleton rehabilitation robot, comprising a treadmill, two pneumatic muscle frames, two transmission devices and two lower limb exoskeletons; the pneumatic muscle frame includes a thigh rotating shaft, a calf rotating shaft, a hip joint shaft, pneumatic muscles and a support frame; the transmission device includes a thigh transmission mechanism and a calf transmission mechanism; the thigh transmission mechanism is a parallel four-connecting-rod mechanism composed of a thigh rotating arm, a thigh connecting rod and a thigh skeleton; the calf transmission mechanism includes two four-connecting-rod mechanisms; and the lower limb exoskeleton is connected to the pneumatic muscle frame through the transmission device.

Abstract: The present invention discloses an optical path/beam splitting unit and a coaxial-wire-feed cladding head thereof. The optical path/beam splitting unit includes an adjustable mirror and at least one stage of beam splitter. Several adjustable mirrors are distributed around the beam splitter. The beam splitter splits an incident laser beam into a plurality of split beams perpendicular to the incident laser beam. The split beams all are focused to a point through the adjustable mirrors. The coaxial-wire-feed cladding head includes a cladding head mirror cavity provided therein with the optical path/beam splitting unit and a wire feeding tube. The wire feeding tube is coaxially arranged with the collimated laser beam. The wire feeding tube extends out of the cladding head mirror cavity. A wire passes through the wire feeding tube and the wire feeding nozzle in order. The adjustable mirrors adjust the focusing of the split beams onto the wire.

Abstract: Additive manufacturing (AM) methods and devices for high-melting-point materials are disclosed. In an embodiment, an additive manufacturing method includes the following steps. (S1) Slicing a three-dimensional computer-aided design model of a workpiece into multiple layers according to shape, thickness, and size accuracy requirements, and obtaining data of the multiple layers. (S2) Planning a forming path according to the data of the multiple layers and generating computer numerical control (CNC) codes for forming the multiple layers. (S3) Obtaining a formed part by preheating a substrate, performing a layer-by-layer spraying deposition by a cold spraying method, and heating a spray area to a temperature until the spraying deposition of all sliced layers is completed. (S4) Subjecting the formed part to a surface modification treatment by a laser shock peening method.

Abstract: Disclosed are alicyclic[c]benzopyrone derivatives and use thereof. The alicyclic[c]benzopyrone derivatives are compounds represented by formula I or their salts. The present compounds not only significantly improve high activity induced by MK-801, but also effectively improve clambering symptom induced by Apomorphine and do not cause EPS within effective dose. These in vitro targets and in vivo pharmacological models are closely related to diseases of the nervous system caused by dopamine dysfunction, especially schizophrenia. Therefore the present compounds can be used for the treatment of central nervous system diseases, especially schizophrenia. ED50 is lower and effect is stronger in two animal models i.e. high activity induced by MK-801 and clambering symptom induced by Apomorphine, while ED50 is higher and therapeutic index is greater in animal models of catalepsy.

Abstract: The present invention belongs to the medicinal chemistry field, and specifically discloses a [1,3,4]oxadiazole derivative with the structure of general formula (I) and pharmaceutically acceptable salt thereof. The compound can be used to prepare a medicine for preventing or treating a disease of the central nervous system.

Abstract: Provided is a sludge drying composite conditioner. The sludge drying composite conditioner comprises a Fenton's reagent or/and Fenton-like reagent and a matrix construct, the weight ratio between the Fenton's reagent or/and the Fenton-like reagent and the matrix construct is 1:0.05 to 300, and the matrix construct is powder. Further provided is an application method of the sludge drying composite conditioner, which comprises the steps of: adding a Fenton's reagent or/and Fenton-like reagent in a sludge, performing stirring and mixing, and performing an oxidation reaction; and adding a matrix construct to the sludge added with the Fenton's reagent or/and Fenton-like reagent and performing stirring and mixing.

Abstract: A method of video splitting and distributed placement scheme for clustered video servers including defining a network packet format for the streaming media and the distributed control file formats for the clips; obtaining the information of streaming media files, getting the basic information of streaming media files and accepting the preliminary splitting requirements of users; defining the placement strategy of clips, obtaining the placement requirements configured by users; analyzing the streaming media files and generating the lists of splitting tasks; running the splitting tasks. According to the number of the clips requested by users, the job is to created multi-threads and each thread processes a splitting task; clips transmission and storage. According to the placement strategy of clips, the job is to transfer the clips to the corresponding storage nodes.

Abstract: 2-aminothiazole derivatives represented by formula (I), where R1 and R2 represent cycloalkyls, respectively; or R1 represents a substituted aromatic group, and R2 represents H, a C1-C11 alkyl, —CH2Ph (benzyl), or a methyl ether including a C1-C11 alkyl. R3 is a substituent including an amino group. X represents a carbonyl or a methylene and n is an integer from 0 to 5.

Abstract: A secure decentralized storage system provides scalable security by addressing the performance bottleneck of the security manager and the complexity issue of security administration in large-scale storage systems.

Abstract: A system and method for generating analog-digital mixed chaotic signal and an encryption communication method thereof are provided. In the system and method, the complementarity between continuous chaotic systems (12, 22) and digital chaotic systems (11, 21) are reasonably utilized. In specific, the digital chaotic systems, which are separated from each other, control the local continuous chaotic systems respectively, so as to enable the continuous chaotic systems, which are also separated from each other, to stably and synchronously work for a long time. Thus, there is no need to transmit the synchronizing signal, and as a result the anti-attack capability is increased effectively. Further, the continuous chaotic systems disturb the local digital chaotic systems to prevent the digital chaotic systems from degradation. This compensates the drawbacks of digital chaotic systems.

Abstract: A loop filtering method and apparatus are provided. The loop filtering method includes: calculating blocking effect strength based on coding type information, which specifies the coding type of a block to be filtered, a motion vector of the block, and reference frame information, which identifies a reference frame; determining a filtering unit to be used for filtering the block based on the calculated blocking effect strength; and performing filtering on the block using the determined filtering unit. Accordingly, it is possible to provide high-quality HDTV images by determining whether to perform loop filtering and adjusting the degree of loop filtering in consideration of the characteristics of HDTV images.

Abstract: The switching method is constituted with a novel nonblocking routing optical crossbar network system. It includes two parts: one is a routing fan-out unit which provides N parallel optical channels for each of M input light beams, and the other is a routing combination unit in which M parallel optical channels that have the same output port, are routing combined into one optical parallel channel of N parallel output channels by the routing fan-in network. According to the method of the present invention, the optical module of M×N (M=2m, N=2n, m and n are nature numbers) routing matrix switching can be developed.