Abstract: The invention discloses a blockchain-based intrusion detection system for railway signal, which is built on a blockchain's distributed chain structure, without a central, trusted control center. This design mitigates the vulnerabilities associated with centralized intrusion detection centers. Additionally, by utilizing a blockchain-based distributed structure, it also eliminates the risk of a single point of failure for the intrusion detection center. Moreover, the data within the blockchain-based intrusion detection system is highly resistant to malicious tampering. This is achieved by leveraging the consensus mechanism inherent in the blockchain, which can achieve consensus among intrusion detection nodes. The current invention solves the internal evil attacks and avoid the inability to reach consensus between nodes due to internal evil, thereby affecting the intrusion detection performance; at the same time, the intrusion detection model can resist external network attacks.

Abstract: A lid assembly for use with a micro puree machine including a lid, a clip mechanism, and a release mechanism. The defines an axis. The clip mechanism is movable between an inward position and an outward position relative to the axis of the lid. The release mechanism is positionable relative to the clip mechanism between a home position and a release position and is operable to move the clip mechanism between the inward position and the outward position. At times the release mechanism is positioned toward the home position, the clip mechanism is moved toward the inward position. At times the release mechanism is positioned toward the release position, the clip mechanism is moved toward the outward position. The clip lever is operable to cause the clip mechanism to engage with or disengage from the blade assembly during installation and removal of bowl assembly from a micro puree machine.

Abstract: The present invention provides a general salt-assisted chemical vapour deposition method for phase-controllable synthesis of 1T? and 2H-phase transition metal dichalcogenide (TMD) monolayer crystals. The method comprises: mixing a transition metal compound powder and a salt powder to form a precursor; placing a substrate on top of the precursor; placing the precursor and the substrate at a center position in a chemical vapour deposition (CVD) furnace; placing a chalcogen powder at an upstream position relative to the precursor along a gas-flow direction in the CVD furnace; heating up the CVD furnace to a growth temperature within the heat-up time; keeping the CVD furnace at the growth temperature for a growth time under a mixed gas flow of H2 and Ar. The optical and electrical characterizations reveal the phase-dependent in-plane isotropy and anisotropy of the as-synthesized 2H and 1T?-phase crystals. The 1T?-TMD monolayer crystals demonstrate much-improved phase transition temperatures.

Abstract: An apparatus and method are described for graphics virtualization with late synchronization. For example, a virtualized graphics execution environment is implemented on a host, including a hypervisor to virtualize graphics processing resources for one or more virtual machines (VMs). A plurality of graphics commands are received responsive to execution of a graphics application in one of the VMs. The graphics commands are persisted until a frame triggering event is detected. Upon detection of a frame triggering event, the persisted graphics commands are submitted to the host.

Abstract: The present application provides a waterproof assembly of an energy storage device, and an energy storage device. The waterproof assembly includes a boss and a wire harness cover. The boss is arranged on an outer wall of a case of a battery, and includes a first outward protruding portion that defines a first through hole in communication with the interior of the case. The wire harness cover is configured to be of a hollow cavity structure for receiving a wire harness, and is internally provided with a first recess that is configured to accommodate the first outward protruding portion to communicate the first through hole with the hollow cavity.

Abstract: Techniques related to viewport selection in immersive video contexts are discussed. Such techniques include generating multiple viewport predictions each for a future time interval and based on different prediction models, ranking the viewport predictions using error descriptors of the prediction models, selecting a viewport prediction for the future time intervals using the ranking, and correcting the selected viewport predictions using the error descriptors.

Abstract: The present disclosure relates to the technical field of oil and gas field exploitation, in particular to an early strength material suitable for a cement slurry system, a cement slurry composition, a cement slurry system, a preparation method therefor and the use thereof. The early strength material contains an aluminum salt, a sodium salt, crystal whiskers, an inorganic mineral and dispersing agent I, wherein the weight ratio of the aluminum salt, the sodium salt, the crystal whiskers, the inorganic mineral and dispersing agent I is (1-3):(1-3):(1-4):(1-8):1.

Abstract: For manufacturing a Zn-air battery, a semi-liquid hydrogel including a polymer component comprising an irradiation activatable crosslinking initiator, and including an electrolyte component is deposited on a zinc anode. At least parts of the semi-liquid hydrogel are irradiated to activate the irradiation activatable crosslinking initiator for crosslinking the polymer component such as to transform the semi-liquid hydrogel into a drop-free yet sticky hydrogel. An air cathode is stuck to the drop-free yet sticky hydrogel.

Abstract: The present invention discloses an intention-driven reinforcement learning-based path planning method, including the following steps: 1: acquiring, by a data collector, a state of a monitoring network; 2: selecting a steering angle of the data collector according to positions of surrounding obstacles, sensor nodes, and the data collector; 3: selecting a speed of the data collector, a target node, and a next target node as an action of the data collector according to an ? greedy policy; 4: determining, by the data collector, the next time slot according to the selected steering angle and speed; 5: obtaining rewards and penalties according to intentions of the data collector and the sensor nodes, and updating a Q value; 6: repeating step 1 to step 5 until a termination state or a convergence condition is satisfied; and 7: selecting, by the data collector, an action in each time slot having the maximum Q value as a planning result, and generating an optimal path.

Abstract: A micro puree machine including a housing, a power shaft, a bowl assembly and a platform. The power shaft extends from the housing. The bowl assembly including at least one locking bowl element. The platform includes at least one complementary locking platform element that is configured to engage the at least one locking bowl element such that rotation of the bowl assembly relative to the platform is prevented at times the bowl assembly is positioned thereon. The platform is rotatable from a first position to a second position relative to the housing such that the platform raises the bowl assembly towards the power shaft during the rotation of the bowl assembly and platform. The raising of the bowl assembly facilitates connection between the power shaft and a blade assembly that is positioned in a lid assembly on the bowl assembly.

Abstract: A method and device for downlink signal transmission in a dual-connection architecture, and a terminal. The method comprises: when a first signal receiver and a second signal transmitter both operate, after a second uplink signal and a higher harmonic signal of a first uplink signal enter a first downlink and before entering the first signal receiver, using a notch filter arranged on the first downlink to filter out a signal located in a preset frequency band in the second uplink signal.

Abstract: Disclosed in the present disclosure is a job-shop batch scheduling method based on a dueling double deep Q-network (D3QN) and a genetic algorithm. The present disclosure includes: constructing a mathematical model of a job-shop batch scheduling problem, where a goal of scheduling is to minimize a maximum completion time; determining a batch partition solution to the job-shop batch scheduling problem by the genetic algorithm; crossing and mutating chromosomes in a population; decoding the chromosomes, and obtaining a batch division solution of the workpieces to be machined; and expressing a procedure sequencing problem of the workpiece batches as a disjunctive graph model; performing representative learning on node feature information of a disjunctive graph by using a graph neural network, and extracting a feature state of the procedure sequencing problem; designing a D3QN model structure with priority experience replay, and training the D3QN model; and determining whether a termination condition is satisfied.

Abstract: A micro puree machine including a housing, a platform, a position motor and a drive motor. The platform is movably positioned in the housing between a first position and a second position. The position motor is mounted on housing and coupled to the platform such that the position motor is operable to move the platform between the first position and the second position. The drive motor is operable to rotate a power shaft relative to the platform. The drive motor is mounted on the platform such that the drive motor and the power shaft move with the platform between the first position and the second position in response to the position motor.

Abstract: A micro puree machine including a housing, a power shaft, a bowl assembly and a platform. The power shaft extends from the housing. The bowl assembly including at least one locking bowl element. The platform includes at least one complementary locking platform element that is configured to engage the at least one locking bowl element such that rotation of the bowl assembly relative to the platform is prevented at times the bowl assembly is positioned thereon. The platform is rotatable from a first position to a second position relative to the housing such that the platform raises the bowl assembly towards the power shaft during the rotation of the bowl assembly and platform. The raising of the bowl assembly facilitates connection between the power shaft and a blade assembly that is positioned in a lid assembly on the bowl assembly. A blade assembly detection system detects proper positioning of the blade assembly within the lid assembly.

Abstract: The present disclosure provides a fabric defect detection method, including the following steps: constructing a data set; preprocessing the data set; constructing a region-based convolutional neural network (R-CNN) model for fabric defect detection; where the R-CNN model for fabric defect detection includes four convolutional layers, four max-pooling layers, and two fully connected layers; training the R-CNN model for fabric defect detection; and reducing a number of false negative (FN) samples by classification threshold reduction. The present disclosure provides a novel R-CNN model for fabric defect detection. The model provides a desirable feature detection accuracy, has a low running cost, and is easy to implement, such that the model can be better applicable to actual operations in an industrial environment.

Abstract: The invention relates to the field of coal mine electric locomotives, and particularly discloses an autonomous positioning method for an underground coal mine anti-explosion storage battery rail electric locomotive, which comprises the following steps: constructing an underground coal mine dynamic map, scanning the surrounding environment by a laser radar at the frequency of more than 10 HZ, and transmitting data to a vehicle-mounted controller; performing dynamic map construction by the vehicle-mounted controller according to point cloud distribution map; underground electric locomotive is accurately positioned by adopting a static accurate positioning mode, a dynamic accurate positioning mode and a multi-track lateral positioning mode; through fusion of multiple dynamic positioning modes, laser radar positioning is adopted, inertial positioning and passive identification card RF ID positioning are fused, and the positioning precision of the system is greatly improved; three positioning modes are organically

Abstract: A method for removing calcium ions from high concentration organic wastewater is provided. The method comprises the steps of: (1) introducing high concentration organic wastewater containing Ca2+, inorganic carbon and a seed crystal into a reactor with a molar ratio of Ca2+ to inorganic carbon of 1:(3.2-6.2); (2) adjusting the hydrogen ion activity ?(H+) and ionic strength of the solution in the reactor; (3) sequentially stirring and precipitating in the reactor to convert Ca2+ in the high concentration organic wastewater into calcium carbonate which is then precipitated for calcium removal.

Abstract: The present application discloses an array substrate and a display panel. The array substrate includes a substrate, a light-shielding layer, a touch trace, and a data line. The light-shielding layer is disposed on the substrate. The touch trace is disposed on the substrate. The data line and the touch trace are disposed on different layers, and at least one of the data line and the touch trace is disposed on a same layer as the light-shielding layer. An orthographic projection of the data line on the substrate at least partially covers an orthographic projection of the touch trace on the substrate. The orthographic projection of the data line on the substrate and the orthographic projection of the touch trace on the substrate are staggered.

Abstract: A wellbore is plugged using a bismuth alloy. The wellbore is arranged so that a liquid bismuth alloy sets with an excess pressure of the plug relative to the borehole fluid pressure along a desired seal height distance.

Abstract: A photographing apparatus and an inspection device are provided. The photographing apparatus comprises a camera, a light supplementing structure, and a closed housing; the camera is provided with a lens, and positioned in and connected to the housing; the housing is provided with at least one photographing portion configured to be attached to an object to be photographed, and a space is formed between the lens and the photographing portion; the light supplementing structure is positioned in and connected to the housing, the light supplementing structure is configured to emit light to said object through the space and the photographing portion, and the lens is configured to capture an image of said object via the photographing portion. The inspection device comprises a rack and the photographing apparatus, and the housing is connected to the rack.