Abstract: A processor-implemented method with molecular dynamics simulation includes: setting a precision of first data used for a molecular dynamics simulation to be a first precision; setting a precision of second data used for the molecular dynamics simulation to be a second precision that is different from the first precision; and conducting the molecular dynamics simulation based on the first data of the first precision and the second data of the second precision.

Abstract: A tracking system for tracking an expanded state of an object is provided. The tracking system comprises at least one processor and a memory having instructions stored thereon that, when executed by the at least one processor, cause the tracking system to execute a probabilistic filter that iteratively tracks a belief on the expanded state of the object, wherein the belief is predicted using a motion model of the object and is further updated using a compound measurement model of the object. The compound measurement model includes multiple probabilistic distributions constrained to lie on a contour of the object with a predetermined relative geometrical mapping to the center of the object. Further, the tracking system tracks the expanded state of the object based on the updated belief on the expanded state.

Abstract: Movable air conditioner and a control method. The movable air conditioner includes a water receiving tray configured to receive condensed water generated by an evaporator of the movable air conditioner, a first water collection area, a second water collection area; a water guiding member configured to selectively guide the condensed water in the water receiving tray to the first water collection area or the second water collection area, and a controller configured to control the water guiding member to the guide condensed water in the water receiving tray to the first water collection area, and configured to control the water guiding member to guide the condensed water in the water receiving tray to the second water collection area when a water level of the first water collection area reaches a preset value.

Abstract: A method of multi-directional scene text recognition based on multi-element attention mechanism include: performing normalization processing for a text row/column image output from an external text detection module by a feature extractor, extracting a feature for the normalized image by using a deep convolutional neural network to acquire an initial feature map, adding a 2-dimensional directional positional encoding P to the initial feature map in order to output a multi-channel feature map, converting the multi-channel feature map output from a feature extractor by an encoder into a hidden representation, and converting the hidden representation output from the encoder into a recognized text by a decoder and using the recognized text as the output result.

Abstract: The present disclosure relates to a scroll compressor and its lubricating oil supply system.

Abstract: The present disclosure provides a semiconductor epitaxial structure, including a substrate, a first-type semiconductor layer, an active region comprising at least one quantum layer, and a second-type semiconductor layer sequentially stacked on a surface of the substrate; wherein the quantum layer comprises barrier layers and potential well layers, and the barrier layers are alternately stacked with the potential well layers, and wherein the quantum layer further comprises a growth temperature transition layer between a barrier layer and a potential well layer, or an electron confinement layer between a barrier layer and a potential well layer.

Abstract: The present disclosure provides a semiconductor epitaxial structure and a manufacturing method therefor, and an LED chip. The semiconductor epitaxial structure may include a substrate, an N-type semiconductor layer, a gate elimination layer, an active layer and a P-type semiconductor layer are sequentially stacked on a surface of a substrate. Furthermore, the gate elimination layer comprises an N-type doped semiconductor layer.

Abstract: An interventional robot system and a readable storage medium. In the interventional robot system, a touch switch is arranged on an operation lever and connected to a processor, and is configured to send a current switch state to the processor; a master-end encoder is arranged on the operation lever and connected to the processor, and is configured to send to the processor an operation lever displacement generated in response to the operation lever being controlled to perform a current operation; a null sensor is arranged on a base and connected to the processor, and is configured to send a current sensor state to the processor; and the processor is configured to control an interventional robot slave end to perform a movement corresponding to the operation lever displacement, such that an elongated medical instrument is accurately controlled to move, and invalid operations are eliminated.

Abstract: The present disclosure provides a ventilator that includes a first gas path, comprising a first pressurized gas source adaptor and a first flow adjustment device connected in sequence; a second gas path, comprising a second pressurized gas source adaptor and a second flow adjustment device connected in sequence; a third gas path, comprising a third pressurized gas source adaptor; a first inhalation branch for delivering inhalation gas to a patient; a second inhalation branch for delivering inhalation gas to the patient, including a gas compression device; a switching device, including a first mixing mode connecting the first gas path and the second gas path to the first inhalation branch, and a second mixing mode connecting the first gas path and the third gas path to the second inhalation branch; and an exhalation branch for managing exhaled air of the patient.

Abstract: The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.

Abstract: A method for monitoring hydraulic fracturing range of a surface vertical shaft is provided by the present disclosure, belonging to the technical field of ultrahigh-pressure hydraulic fracturing monitoring of the coal mine vertical shafts.

Abstract: A tracking system for tracking an expanded state of an object is provided. The tracking system executes, for a predetermined time period, a probabilistic filter that iteratively tracks a belief on the expanded state of the object, wherein the belief is predicted using a motion model of the object and is further updated using a compound measurement model of the object. After the predetermined time period, the updated beliefs are smoothed to generate a state-decoupled online batch of training data. The compound measurement model includes multiple probabilistic distributions constrained to lie around a contour of the object with a predetermined relative geometrical mapping to the center of the object. The compound measurement model is updated using the online batch of training data. Further, the tracking system tracks the expanded state of the object based on the updated compound measurement model.

Abstract: A remote reconfiguration system for an Internet of Things (IoT) intelligent sensing terminal includes: a controlled terminal with a field programmable gate array (FPGA); and a remote control unit connected to the controlled terminal and a control device; where the remote control unit is configured to receive control information sent by the control device, process the control information and send the processed control information to the FPGA, such that the FPGA performs remote local autonomous reconfiguration based on the preprocessed control information. The system resolves problems that a traditional IoT terminal cannot realize remote control and cannot follow functional requirements to perform local autonomous reconfiguration, and has better versatility and expandability.

Abstract: The present disclosure relates to a scroll compressor and its lubricating oil supply system.

Abstract: Technologies for the prevention and/or treatment of pneumococcal infections.

Abstract: The present disclosure discloses an electric border gateway device which adopts the blockchain technology to implement communication authentication and data transmission encryption at the gateway. As a device for sinking and processing local information, the border gateway device may build not only a local blockchain network with a variety of local electric sensing terminal devices, but also a regional blockchain network with other border gateways and electric management platforms. As a critical node of these two types of blockchain, the border gateway may enable the authentication of identity legality between electric sensing terminal devices, the critical data storage in the blockchain ledger, the deployment and implementation of blockchain transaction by control and coordinated functions, and the safe and reliable data interaction. The present disclosure also discloses a method for chaining and storage of sensing data based on the electric border gateway device.

Abstract: A tracking system for tracking an expanded state of an object is provided. The tracking system comprises at least one processor and a memory having instructions stored thereon that, when executed by the at least one processor, cause the tracking system to execute a probabilistic filter that iteratively tracks a belief on the expanded state of the object, wherein the belief is predicted using a motion model of the object and is further updated using a compound measurement model of the object. The compound measurement model includes multiple probabilistic distributions constrained to lie on a contour of the object with a predetermined relative geometrical mapping to the center of the object. Further, the tracking system tracks the expanded state of the object based on the updated belief on the expanded state.