Abstract: An LDMOS transistor can include: an intrinsic region and a termination region distributed along, where the intrinsic region includes a semiconductor region of a first doped type, a body region of a second doped type extending from the upper surface of the semiconductor region into the interior of the semiconductor region, a drift region located in the semiconductor region, the drift region including at least one first implant region of the first doped type and at least one second implant region of the second doped type, where the at least one second implant region is separated from the body region, a source region of the first doped type located in the body region, and a drain region of the first doped type located in the semiconductor region, where the termination region includes a third implant region of the second doped type being in contact with the second implant region.

Abstract: An LDMOS transistor can include: a semiconductor region; a body region of a second doping type, wherein the body region extends from an upper surface of the semiconductor region to an interior of the semiconductor region; a source region of a first doping type and a body contact region of the second doping type, where the source region extends from an upper surface of the body region to an interior of the body region; a drain region of the first doping type, wherein the drain region is located in the semiconductor region; a source electrode that is in contact with the body contact region and the source region; and where a junction depth of the body contact region is greater than a junction depth of the source region.

Abstract: An LDMOS transistor can include: a semiconductor region; a source region of a first doping type and a drain region of the first doping type, both being disposed in the semiconductor region; a gate dielectric layer adjacent to the source region, and being disposed on an upper surface of the semiconductor region; a voltage-blocking layer adjacent to the drain region, and being disposed on the semiconductor region; a buffer field plate between the gate dielectric layer and the voltage-blocking layer, and being disposed on the upper surface of the semiconductor region; and where a thickness of the voltage-blocking layer is greater than a thickness of the buffer field plate, and the thickness of the buffer field plate is greater than a thickness of the gate dielectric layer.

Abstract: A transistor structure can include: a source region and a drain region located in a semiconductor region; a gate dielectric layer located on the upper surface of the semiconductor region; a field isolation barrier layer located on the semiconductor region, and extending laterally from the gate dielectric layer at least above the drain region and covering the upper surface of the drain region, where the field isolation barrier layer includes at least one drain via on the upper surface of the drain region; and a drain electrode filling the drain via to be in contact with the drain region.

Abstract: An electric nursing bed with rotating and boosting functions is provided, including a bedstead assembly, a mounting frame, a rotating rod, a mattress foundation, an anti-skid frame, a first linear push rod, and a second linear push rod. The mattress foundation includes a back frame, a buttock frame, an upper leg frame, and a lower leg frame. The anti-skid frame is rotatably connected to the upper leg frame. The mounting frame is rotatably disposed on the bedstead assembly, so as to support the mattress foundation. The rotating rod is fastened to the buttock frame, simultaneously extends below the upper leg frame, and is hinged to the mounting frame.

Abstract: The present invention relates to a wire-wound charger and a rotating electrical connection structure and a formation method thereof. The rotating electrical connection structure comprises two circuit boards, a conductive elastic sheet group and a conductive sheet assembly. The group and the assembly are mounted on one circuit board. The conductive elastic sheet group comprises a plurality of annular elastic sheets, and the conductive sheet assembly comprises a plurality of conductive rings, a plurality of first and second indentation portions are formed between adjacent sheets or adjacent rings, respectively. The circuit boards are respectively provided with hole portions corresponding to the indentation portions. The sheet or ring have a predetermined thickness and is wear resistance, thus providing a long working period. Further, the structure has a high positioning accuracy, is reliable and readily to be formed.

Abstract: The present invention discloses a method for optimizing the double-layer PA pavement structure into a three-layer structure based on equal permeation rate, belonging to the technical field of structural optimization of double-layer PA pavement. The method includes compressing the double-layer PA pavement and determining the thickness and position of an added surface layer. A prediction model for multi-factor permeation rate is constructed using the XGBoost algorithm. The air voids prediction model is derived by adjusting the dependent variable of the permeation rate model. The dosage of interlayer emulsified asphalt is determined, considering its effect on the permeation rate. The air voids and thickness of each layer are calculated, resulting in a final optimized three-layer structure that reduces structural redundancy, increases connected air voids, and improves pavement performance.

Abstract: Embodiments of the present disclosure provide a method, apparatus, device and medium for processing a distributed file. The method comprises: receiving a read request sent by a user, wherein a file is distributedly written into a magnetic disk array in a sliced data form; querying a pre-read chain list in a memory according to the read request, wherein each file node in the pre-read chain list comprises at least one chain of ordered data blocks; in a case that a pre-read condition is satisfied, reading sliced data from the magnetic disk array according to a pre-read policy and the read request to generate ordered pre-read data, to store the pre-read data into a file node of the pre-read chain list in an ordered manner in the data block form, and to send a read response containing the target data to the user.

Abstract: Disclosed are a detection apparatus for biological characteristic information and an electronic device. The detection apparatus including a first button. A cavity is formed in a shell of the first button. The detection apparatus includes: a first detection part. The first detection part includes: a first pulse wave detection module at least partially arranged in the cavity and configured to detect a first pulse wave signal of a user when the user presses the first button; and a pressure sensing module at least partially arranged in the cavity of the first button and configured to detect a pressure signal applied to the first button by the user, where the first pulse wave signal is a corresponding pulse wave signal when the user applies the pressure signal, and the pressure signal and the first pulse wave signal are used to detect first biological characteristic information of the user.

Abstract: A semiconductor device can include: a substrate; a well region located in the substrate and having a first doping type; a body region located in the substrate and having a second doping type that is opposite to the first doping type; a source region located in the body region and having the first doping type; a drain region located in the well region and having the first doping type; an isolation structure located on the substrate and between the drain region and the source region; and a gate structure located on the isolation structure and including a first gate region and a second gate region, where the first gate region is of the first doping type, and the second gate region is of the second doping type.

Abstract: An ML (machine learning) training logs are parsed for generating a set of heterogenous graphs having embedded nodes connected with edges determined with link prediction and denoting a hierarchical relationship between nodes. Each graph represents benign behavior from executing one of the files of a training database in the sandbox, wherein the nodes are embedded in the graph using GCN (graph convolution network) to calculate a real-valued vector with fixed dimension. A runtime module to receive an untagged file in real-time for analysis from a network component, and generates a graph of runtime behavior from sandbox of the suspicious file for comparison against the training graphs.

Abstract: The present invention belongs to the technical field of network function virtualization and relates to a method and apparatus for optimizing a cross-domain deployment of an SFC (Service Function Chain) based on VNF (Virtual Network Function) migration, a computer device, and a storage medium. The method includes: acquiring a node resource of VNFs and a resource requirement of flow processing; performing the cross-domain deployment of the SFC according to the node resource and the resource requirement; searching for an equilibrium point between a delay and a resource consumption rate of the SFC in combination with the delay and the resource consumption rate of the SFC; and performing optimization processing on the VNF migration according to the equilibrium point to reconstruct the cross-domain deployment of the SFC. First of all, combined with an original deployment of the SFC in a model, whether the VNFs are migrated in the SFC is determined.

Abstract: Embodiments of the present disclosure provide a method, apparatus, device and medium for processing a distributed file. The method comprises: receiving a read request sent by a user, wherein a file is distributedly written into a magnetic disk array in a sliced data form; querying a pre-read chain list in a memory according to the read request, wherein each file node in the pre-read chain list comprises at least one chain of ordered data blocks; in a case that a pre-read condition is satisfied, reading sliced data from the magnetic disk array according to a pre-read policy and the read request to generate ordered pre-read data, to store the pre-read data into a file node of the pre-read chain list in an ordered manner in the data block form, and to send a read response containing the target data to the user.

Abstract: A method of preparing PAN-based carbon fibers relates to the technical field of materials. The method includes: S1. acrylonitrile, a second monomer and an unsaturated UV-sensitive cross-linking agent are mixed, an initiator is then added and a reaction is performed to obtain a meltable PAN-based copolymer; S2. the meltable PAN-based copolymer and a flow modifier are mixed to obtain a mixture, the mixture is extruded and pelletized, and then melt spinning is performed to obtain nascent fibers, the nascent fibers are stretched and annealed to obtain a PAN-based carbon fiber precursor; S3. ultraviolet irradiation is performed on the PAN-based carbon fiber precursor; S4. the PAN-based carbon fiber precursor after ultraviolet irradiation is pre-oxidized and carbonized to obtain PAN-based carbon fibers.

Abstract: A pressure detection module and an electronic device are provided. The pressure detection module includes: a first electrode, a second electrode, a first circuit board, a second circuit board, and at least two solder fixing parts. A first surface of the first circuit board is fixed to an inner surface of a force input area of the housing. A second surface of the first circuit board is fixed to a first surface of the first electrode. A first surface of the second circuit board is fixed to a second surface of the second electrode. Two end sides of the second surface of the first circuit board and two end sides of the first surface of the second circuit board are disposed opposed to each other through the at least two solder fixing parts. Thereby, the pressure detection module does not require a bracket and has a small thickness.