Abstract: The disclosure discloses a polycrystalline diamond composite sheet having a continuous gradient transition layer and a 3D printing preparation method thereof. The polycrystalline diamond composite sheet consists of a polycrystalline diamond layer, a continuous gradient transition layer, and a cemented carbide substrate from top to bottom, in which the continuous gradient transition layer consists of diamond and cemented carbide. Along a direction from the cemented carbide substrate to the polycrystalline diamond layer, a content of the cemented carbide in the continuous gradient transition layer decreases from 100% to 0, and a content of the diamond increases from 0 to 100%. By designing and combining the continuous gradient transition layer with 3D printing technology, the disclosure realizes a continuous change in the two materials of diamond and cemented carbide, thereby eliminating the sudden change interface of the materials inside the diamond composite sheet.

Abstract: The disclosure discloses a polycrystalline cubic boron nitride composite sheet having a continuous gradient structure and a preparation method thereof. The polycrystalline cubic boron nitride composite sheet consists of a cemented carbide substrate, a continuous gradient layer, and a CBN layer from bottom to top. The continuous gradient layer contains cemented carbide and CBN, a content of CBN increases in continuous gradient from bottom to top, while a content of the cemented carbide decreases in continuous gradient from bottom to top. A volume fraction D of CBN and a volume fraction M of cemented carbide in the continuous gradient layer both satisfy exponential gradient functions. At the same time, the disclosure uses direct ink writing 3D printing technology with slurry to realize the preparation of the polycrystalline cubic boron nitride composite sheet having the continuous gradient structure.

Abstract: A blower, comprises a blower body, accommodating therein a fan and an electric motor driving the fan to rotate. A rotation shaft of the fan defines a longitudinal axis. A blow pipe is removably attached to the blower body. A tapered member is provided between the electric motor and an air inlet of the blower body, the tapered member gradually narrowing toward the air inlet.

Abstract: The application belongs to the technical field of water treatment, and relates to a biofilm electrochemical reactor for simultaneously removing nitrate nitrogen and trace organic matters in water.

Abstract: The disclosure relates to a polycrystalline diamond composite sheet having a ripple-shaped gradient layer and a preparation method thereof. The polycrystalline diamond composite sheet consists of a cemented carbide substrate, a ripple-shaped gradient layer of a multi-layer structure, and a polycrystalline diamond layer from bottom to top. In the ripple-shaped gradient layer, a content of polycrystalline diamond increases from bottom to top, and a content of cemented carbide decreases from bottom to top. In the ripple-shaped gradient layer, an amplitude of a ripple-shaped structure is 0.2 to 0.6 mm, a wavelength is 1 to 2 mm, a spacing between an upper ripple and a lower ripple of a top layer is set to a gradient of (t/2 to t) mm to t mm from a peak to a trough, and spacings between an upper ripple and a lower ripple of remaining layers are all t mm, wherein t is 0.05 to 0.4.

Abstract: The disclosure provides a gradient structure cubic boron nitride composite sheet and a preparation method thereof. The gradient structure cubic boron nitride composite sheet consists of a cemented carbide substrate, a gradient transition layer, and a CBN layer from bottom to top. The gradient transition layer consists of N gradient layers, and the N is 4 to 18. From bottom to top, there are sequentially a first gradient layer, a second gradient layer, an Nth gradient layer, and so on. Any of the gradient layers consists of CBN and cemented carbide, in which the volume fraction of the cemented carbide in the Nth layer is 5 to 30% less than the volume fraction of the cemented carbide in the N?1th layer, and the volume fraction of the CBN in the Nth layer is 5 to 30% more than the volume fraction of the CBN in the N?1th layer.

Abstract: In various examples, high beam control for vehicles may be automated using a deep neural network (DNN) that processes sensor data received from vehicle sensors. The DNN may process the sensor data to output pixel-level semantic segmentation masks in order to differentiate actionable objects (e.g., vehicles with front or back lights lit, bicyclists, or pedestrians) from other objects (e.g., parked vehicles). Resulting segmentation masks output by the DNN(s), when combined with one or more post processing steps, may be used to generate masks for automated high beam on/off activation and/or dimming or shading—thereby providing additional illumination of an environment for the driver while controlling downstream effects of high beam glare for active vehicles.

Abstract: In various examples, high beam control for vehicles may be automated using a deep neural network (DNN) that processes sensor data received from vehicle sensors. The DNN may process the sensor data to output pixel-level semantic segmentation masks in order to differentiate actionable objects (e.g., vehicles with front or back lights lit, bicyclists, or pedestrians) from other objects (e.g., parked vehicles). Resulting segmentation masks output by the DNN(s), when combined with one or more post processing steps, may be used to generate masks for automated high beam on/off activation and/or dimming or shading—thereby providing additional illumination of an environment for the driver while controlling downstream effects of high beam glare for active vehicles.

Abstract: The present disclosure provides an array substrate and a display panel. The driving circuit layer of the array substrate provided with a first thin-film transistor (TFT) and a second TFT. An exemplified active layer of a P-type TFT is formed by organic conductive polymer material. By using organic conductive polymer materials as the active layer material of the first TFT, the technical problems of the flexibility of the display substrate resulting by the characteristics of the low temperature polysilicon material are solved. The flexibility of the array substrate is enhanced.

Abstract: The present disclosure relates to a quantum key distribution (QKD) method based on a tree QKD network. The method includes: judging a position of a parent node of the source node S0 and a position of a parent node of the destination node Sd; if the parent node is a trusted relay node, directly transferring an initial shared key of the source node S0 and the parent node to the destination node Sd according to an exclusive OR (XOR) relay scheme, and ending the process; and if the parent node is an untrusted relay node, emitting, by the source node S0 and the destination node Sd, photons to a measuring-device-independent quantum key distribution (MDI-QKD) receiver of the parent node through a QKD emitter, generating a shared key by an MDI-QKD method, then transmitting the shared key according to the XOR relay scheme, and ending the process.

Abstract: The present disclosure provides an anisotropic conductive film, a display panel, and manufacturing method thereof. The anisotropic conductive film includes a conductive particle, the conductive particle including a covalent organic framework material, the covalent organic framework material including PyVg-COF. The display panel including a first substrate, a second substrate and an anisotropic conductive film. The method of manufacturing the display panel including: providing a first substrate, coating an anisotropic conductive film on the first substrate, coupling the second substrate to the first substrate, and bonding the first substrate to the second substrate. The present disclosure provides the conductive particles of the covalent organic frame material replace the existing gold ball as an anisotropic conductive film for bonding, thereby saving the manufacturing cost of the gold ball, improving the conductivity and water resistance, and avoiding the bonding contact point being oxidation.

Abstract: A two-loop cross-belt sorter includes at least one loop-shaped track (1); two cross-belt trolley groups (2), and forms two side-by-side conveyance loops able to circulate on the loop-shaped track (1), and a power apparatus (3) that drives the two cross-belt trolley groups (2) to move along the loop-shaped track (1). The two-loop cross-belt sorter uses two sets of trolleys on a loop-shaped track, allows the space inside the loop to be utilized and the quantity of cross-belt trolleys to be increased without increasing the area occupied by the sorter, thus doubling sorting capacity, while allowing parcels to be transferred between cross-belt trolleys on the two conveyance loops, thereby reducing the idle rate of the trolleys.

Abstract: The application belongs to the technical field of water treatment, and relates to a biofilm electrochemical reactor for simultaneously removing nitrate nitrogen and trace organic matters in water.

Abstract: The present disclosure provides an array substrate and a display panel. The driving circuit layer of the array substrate provided with a first thin-film transistor (TFT) and a second TFT. An exemplified active layer of a P-type TFT is formed by organic conductive polymer material. By using organic conductive polymer materials as the active layer material of the first TFT, the technical problems of the flexibility of the display substrate resulting by the characteristics of the low temperature polysilicon material are solved. The flexibility of the array substrate is enhanced.

Abstract: The present disclosure relates to a quantum key distribution (QKD) method based on a tree QKD network. In a tree network, when parent nodes of a source node and a destination node are the same node, if the parent nodes are untrusted nodes, the source node and the destination node take the parent nodes as an MDI-QKD detector to generate a key, and if the parent nodes are trusted nodes, a shared key is directly transferred through XOR relay; and when the parent nodes of the source node and the destination node are not the same node and there are discontinuous untrusted relay nodes in a transmission path, the untrusted nodes are taken as an MDI-QKD detector to generate a key, and then the shared key is transferred through XOR relay.

Abstract: The present disclosure provides an anisotropic conductive film, a display panel, and manufacturing method thereof. The anisotropic conductive film includes a conductive particle, the conductive particle including a covalent organic framework material, the covalent organic framework material including PyVg-COF. The display panel including a first substrate, a second substrate and an anisotropic conductive film. The method of manufacturing the display panel including: providing a first substrate, coating an anisotropic conductive film on the first substrate, coupling the second substrate to the first substrate, and bonding the first substrate to the second substrate. The present disclosure provides the conductive particles of the covalent organic frame material replace the existing gold ball as an anisotropic conductive film for bonding, thereby saving the manufacturing cost of the gold ball, improving the conductivity and water resistance, and avoiding the bonding contact point being oxidation.

Abstract: A blower, comprises a blower body, accommodating therein a fan and an electric motor driving the fan to rotate. A rotation shaft of the fan defines a longitudinal axis. A blow pipe is removably attached to the blower body. A tapered member is provided between the electric motor and an air inlet of the blower body, the tapered member gradually narrowing toward the air inlet.

Abstract: An image processing method to reduce access pressure of each image in an image set, where the image processing method includes obtaining a quantity of times each image layer in an image set is accessed, determining one or more first image layers, where a quantity of times the first image layer in the image set is accessed is greater than a first threshold, and the first image layer has at least two child image layers, generating a copy of the first image layer, and modifying some child image layers of the first image layer to child image layers of the copy of the first image layer.