Abstract: A thermoplastic composition comprising: 45-90 wt % of a polycarbonate; 5-15 wt % of a brominated polycarbonate; a polycarbonate-siloxane copolymer in an amount effective to provide 0.2-2 wt % siloxane based on the total weight of the thermoplastic composition; 2-10 wt % of a silicone-containing impact modifier comprising a core-shell impact modifier; 0.1-1 wt % of a flame retardant comprising an alkyl sulfonate salt, aromatic sulfone sulfonate, an aromatic sulfonate salt, or a combination thereof; optionally, 0.5-10 wt % titanium dioxide; optionally, 0.1-1 wt % carbon black, wherein the wt % of each component is based on the total weight of the composition, which totals 100 wt %.

Abstract: The present disclosure belongs to the technical field of biology, and in particular relates to an attenuated strain of African swine fever virus (ASFV) with IPTG-induced deletion of a D1133L gene and use thereof. In the present disclosure, it is firstly found that the D1133L protein of ASFV can inhibit production of IFN-? and downstream cytokines ISG-15 and ISG-56, and can be used as an immunosuppressant with a relatively strong immunosuppressive effect. In addition, the attenuated strain of ASFV with IPTG-induced deletion of the D1133L gene is constructed. Specifically, a screening expression cassette is inserted into a position before the non-structural protein gene D1133L of the ASFV using an Escherichia coli lac operator-repressor system, to obtain a recombinant virus. In the presence of the IPTG, the recombinant virus has similar characteristics to a wild-type virus; and in the absence of the IPTG, the expression of the D1133L protein is inhibited.

Abstract: Disclosed are a counterweight structure, a robot and a method for controlling the robot. The counterweight structure includes an electromagnetic device, a counterweight block and a reset piece. The reset piece is clamped between the electromagnetic device and the counterweight block. The electromagnetic device is magnetic after being powered on, to attract the counterweight block to move towards the electromagnetic device and compress the reset piece.

Abstract: Disclosed are a rotating wheel apparatus, a driving wheel and a robot. The rotating wheel apparatus includes: a rotating assembly, a bearing and a supporting base. The rotating assembly is provided with an accommodating groove. The bearing is accommodated in the accommodating groove and connected to the rotating assembly. The supporting base is close to a notch of the accommodating groove, the supporting base is connected to the bearing, so that the rotating assembly is rotationally connected to the supporting base.

Abstract: Provided are an off-grid start method and system for a new energy power generation system. The method includes: gradually boosting the voltage of a master according to a plurality of preset voltage given values, and slaves determining, by means of measuring a voltage of the load of a system, a target voltage given value used by the master; and the master determining, by means of monitoring an output current of the master itself, that a slave is successfully connected in parallel, and then continuing to boost the output voltage until all the slaves run in parallel. Therefore, according to the solution, no upper-layer synchronous control is required during a black-start process, and no communication between a master and slaves is required.

Abstract: Provided is a method for locating a human target using superficial vein characteristics, which includes acquiring a model displaying both of the human target and superficial veins; projecting the model on a body surface where the superficial veins are located, so that a ratio of a projection on the body surface to actual dimensions of a human body is (0.9-1.1):1; and adjusting a position of the projection of the model, observing the superficial veins, and making at least two of the superficial veins coincide with veins in the projection of the model, and determining that a position of the human target in the projection of the model is a projection of the human target on the actual body surface.

Abstract: A method, performed by a computer, for volumetrically determining a mid-sagittal plane (MSP) from a plurality of magnetic resonance (MR) images of a brain is disclosed. The plurality of MR images is received and converted into a 3D volume image defined in a 3D coordinate space. Semantic segmentation of an anterior commissure (AC) region, a posterior commissure (PC) region, and a third ventricle region in the 3D volume image is performed based on a pre-trained segmentation model to generate a 3D mask image labeled with the AC region, the PC region, and the third ventricle region. Based on the labeled 3D mask image, a 3D volumetric image of the segmented third ventricle region is constructed. The MSP is determined based on the 3D volumetric image of the third ventricle region.

Abstract: A method, performed by a computer, for volumetrically determining a mid-sagittal plane (MSP) from a plurality of magnetic resonance (MR) images of a brain is disclosed. The plurality of MR images is received and converted into a 3D volume image defined in a 3D coordinate space. Semantic segmentation of an anterior commissure (AC) region, a posterior commissure (PC) region, and a third ventricle region in the 3D volume image is performed based on a pre-trained segmentation model to generate a 3D mask image labeled with the AC region, the PC region, and the third ventricle region. Based on the labeled 3D mask image, a 3D volumetric image of the segmented third ventricle region is constructed. The MSP is determined based on the 3D volumetric image of the third ventricle region.

Abstract: A method for detecting abnormal network data includes performing feature extraction on a network data packet according to each of plural protocol types, and generating a corresponding data packet fingerprint set. The data packet fingerprint set includes one or more data packet fingerprints, each of the one or more data packet fingerprints corresponding to one of the plural protocol types. The method further includes matching at least one data packet fingerprint in the data packet fingerprint set and a reference data packet fingerprint in a reference data packet fingerprint library, and calculating a confidence corresponding to the network data packet based on confidence correlation information corresponding to each of the at least one matched data packet fingerprint. The method also includes obtaining a reference confidence, and determining an abnormality detection result of the network data packet based on the reference confidence and the calculated confidence.

Abstract: The present invention provides a counterweight for a compressor, an electric motor, with the counterweight, for a compressor, and a compressor with the electric motor or the counterweight. The counterweight comprises: a first component having an annular shape; a first groove formed in a surface of the first component and having a sidewall and a bottom wall; and a second component disposed in the first groove. With the technical solution according to the present invention, for example, counterbalance requirements are met, while fluid can be prevented from being stirred to cause power loss.

Abstract: The present application relates to the field of security and protection, and provides a pan-tilt control method, device and system. The method comprises: detecting whether there is a signal source within a monitored region of a pan-tilt camera, the pan-tilt camera comprising a pan-tilt and a camera attached to the pan-tilt; judging, when there is a signal source within the monitored region, whether signals emitted from the signal source are position adjusting signals for indicating a position adjustment on the pan-tilt; and adjusting a position of the pan-tilt according to a position of the signal source when the signals emitted from the signal source are position adjusting signals. In the present application, the trigger delay of the control operation on the pan-tilt camera is reduced.

Abstract: A surgical robot based on a ball-and-socket joint and tactile feedback is provided. The ball-and-socket joint includes a spherical member and a joint socket. A first roller and a second roller are arranged in the joint socket to drive a three-dimensional rotation of the spherical member in the joint socket. A sensor is arranged in the joint socket to sense the three-dimensional rotation of the spherical member in the joint socket. A first channel tube, a second channel tube and a surgical instrument are arranged sequentially in a center of the spherical member.

Abstract: Provided is a method for locating a human target using superficial vein characteristics, which includes acquiring a model displaying both of the human target and superficial veins; projecting the model on a body surface where the superficial veins are located, so that a ratio of a projection on the body surface to actual dimensions of a human body is (0.9-1.1):1; and adjusting a position of the projection of the model, observing the superficial veins, and making at least two of the superficial veins coincide with veins in the projection of the model, and determining that a position of the human target in the projection of the model is a projection of the human target on the actual body surface.

Abstract: A method, performed by a computer, for volumetrically determining a mid-sagittal plane (MSP) from a plurality of magnetic resonance (MR) images of a brain is disclosed. The plurality of MR images is received and converted into a 3D volume image defined in a 3D coordinate space. Semantic segmentation of an anterior commissure (AC) region, a posterior commissure (PC) region, and a third ventricle region in the 3D volume image is performed based on a pre-trained segmentation model to generate a 3D mask image labeled with the AC region, the PC region, and the third ventricle region. Based on the labeled 3D mask image, a 3D volumetric image of the segmented third ventricle region is constructed. The MSP is determined based on the 3D volumetric image of the third ventricle region.

Abstract: Embodiments of this application provide an upload interface identification method performed at an identification server. The identification server obtains a to-be-identified request packet that is contained in request packets from a page client to a page server. After parsing a content feature of the to-be-identified request packet, the server determines whether the content feature corresponds to a predefined content feature of an upload request packet authorized by the page server. The server then determines that an interface address indicated by the upload request packet corresponds to an upload interface of the to-be-identified request packet if the content feature corresponds to the set content feature of the upload request packet.

Abstract: The present invention provides a counterweight for a compressor, an electric motor, with the counterweight, for a compressor, and a compressor with the electric motor or the counterweight. The counterweight comprises: a first component having an annular shape; a first groove formed in a surface of the first component and having a sidewall and a bottom wall; and a second component disposed in the first groove. With the technical solution according to the present invention, for example, counterbalance requirements are met, while fluid can be prevented from being stirred to cause power loss.

Abstract: An electrical receptacle connector includes an insulated housing in a metallic shell. First and second receptacle terminals are on the insulated housing. The receptacle terminals include first and second high-speed signal terminals. The metallic shell includes a receptacle cavity for receiving the insulated housing, an insertion opening being in communication with the receptacle cavity, pins at two sides of the metallic shell and outwardly extending, and an external protruding structure on a bottom surface for connecting to a circuit board. The external protruding structure forms an enclosed structure. Therefore, the seamless configuration improves the reduction to electromagnetic interference.

Abstract: Disclosed is an endoscope with an enlargeable distal end, including an inserting portion and an endoscope main body. The inserting portion includes a housing, a working cavity, a camera, and an wire band. The working cavity, the camera and the wire band are all disposed in the housing. One end of the wire band is connected to the camera, and the other end the wire band passes through the housing to be connected to the endoscope main body. The camera is arranged at a distal end in the housing, where there is provided a notch. The working cavity or the camera can extend out from or retract back into the notch. When the working cavity or the camera extends out from the notch, the working cavity and the camera are situated side by side. The endoscope with the enlargeable distal end can achieve the enlargement and retraction of the distal end of the endoscope.

Abstract: a filtering method, with which a fluid to be filtered is led through a filter (4), the filter (4) is back-flushed at regular time intervals and a pre-treatment agent is added to the fluid at the entry side of the filter. A process variable which describes the efficiency of the filtration is continuously computed during the filtration, and a metering quantity of the pre-treatment agent is reset on the basis of the values for the process variable or a characteristic values derived from this.