Abstract: A wire feeding mechanism suitable for fused deposition Additive Manufacturing (AM) of a flexible wire is provided, which includes a support housing. A melting nozzle is arranged at the lower end of the support housing, a hook is connected to the inner wall of the top end of the support housing, a connecting rod is connected to the inner wall of one side of the support housing, a wire drawing mechanism is connected to one end of the connecting rod, the wire drawing mechanism is located at the lower end of the hook, a limiting mechanism and a wire guide mechanism are connected to the inner wall of one side of the support housing, the limiting mechanism is located at the lower end of the wire drawing mechanism, the wire guide mechanism is located at the lower end of the limiting mechanism.

Abstract: Computer systems and methods for training and/or testing a self-driving vehicle. The systems and methods, via in-car cameras and sensors, capture video of conditions surrounding the vehicle, driving data related to control of the vehicle, and driver behavior data representing actions by a human controlling the vehicle. The systems and methods analyze the captured video data and driving data to derive decisions a computer would make to control the vehicle. The systems and methods analyze the captured driver behavior data to determine decisions made by the human to control the vehicle. The systems and methods evaluate the derived computer decisions in comparison to the determined human decisions to detect data indicating discrepancies between the derived computer decisions and the determined human decisions for controlling the vehicle. The systems and methods provide the detected data as input to a model for training and/or testing a self-driving vehicle.

Abstract: A portable video capture device, including a data storage device, an image sensor, and a processor, is disclosed. The image sensor captures video data and the processor encodes the video data to generate first, second, and third compressed video data sets, respectively having low, medium, and high resolution, which are then stored on the storage device. The processor receives position data from various sensors and on-board diagnostic (OBD) data from an operating automobile and encodes the received data as a visual display superimposed on video data. The capture device transmits streaming video data to a remote device and performs video editing and indexing functions on the video data, automatically according to predetermined criteria, and/or based on based on instructions received from the remote device. The remote device receives video editing instructions from a graphical user interface based on received video data and transmits the instructions to the video device.

Abstract: The present invention provides EV71 virus-like particles and a preparation method and application thereof. The method comprises: connecting a P1 protein gene and a 3CD protease gene of an EV71 virus with a PMV plasmid to construct a PMV-P1-3CD recombinant expression plasmid; then transforming a Hansenula polymorpha AU-0501 expression strain with the PMV-P1-3CD recombinant expression plasmid to obtain an AU-PMV-P1-3CD recombinant expression strain; fermenting and culturing the recombinant expression strain, and inducing the recombinant expression strain to express the EV71 virus-like particle protein with methanol; centrifuging and collecting mycelia for homogeneous breakage at a high pressure; and purifying the supernatant through ion-exchange chromatography, hydrophobic chromatography, and molecular sieve chromatography, so as to obtain EV71 virus-like particles.

Abstract: A disclosed mounting device for a portable video capture device includes a main body, a first coupling device, and a second coupling device. The main body includes a Global Positioning System (GPS) receiver. The first coupling device provides a mechanical coupling between the main body and a mounting surface, and the second coupling device provides an electrical and mechanical coupling between the main body and the portable video capture device. The GPS receiver includes a GPS antenna and a GPS module. The GPS module includes circuitry that receives GPS signals from the GPS antenna and provides the received GPS signals to the portable video capture device through the electrical coupling provided by the second coupling device. A disclosed method includes generating, from the GPS signals, position information that is updated at a rate of no less than 6 Hz, and transmitting the position information to the portable video capture device.

Abstract: The present invention provides EV71 virus-like particles and a preparation method and application thereof. The method comprises: connecting a P1 protein gene and a 3CD protease gene of an EV71 virus with a PMV plasmid to construct a PMV-P1-3CD recombinant expression plasmid; then transforming a Hansenula polymorpha AU-0501 expression strain with the PMV-P1-3CD recombinant expression plasmid to obtain an AU-PMV-P1-3CD recombinant expression strain; fermenting and culturing the recombinant expression strain, and inducing the recombinant expression strain to express the EV71 virus-like particle protein with methanol; centrifuging and collecting mycelia for homogeneous breakage at a high pressure; and purifying the supernatant through ion-exchange chromatography, hydrophobic chromatography, and molecular sieve chromatography, so as to obtain EV71 virus-like particles.