Abstract: An oral care position identification method and an oral care device are provided. The oral care position identification method is applied to the oral care device. The oral care device includes a handle, the care element, and a first positioning component. The first positioning component is disposed on the handle. The oral care position identification method includes steps of acquiring human body feature information of a user during an oral care process through the first positioning component of the oral care device and determining a current oral care position corresponding to the care element based on the human body feature information. The care element is within an energy field of the first positioning component, so that the first positioning component is able to acquire feature information of at least part of the care element when the first positioning component is turned on.

Abstract: An oral care device is provided in this application, which includes a handle assembly, a care element, and an energy receiving device. The handle assembly includes a handle and an internal assembly. The handle defines a mounting cavity and a receiving port. The receiving port is communicated with the mounting cavity. The internal assembly is mounted in the mounting cavity and an output shaft included in the internal assembly extends out of the mounting cavity. The care element is connected to one end of the output shaft extending out of the mounting cavity. The energy receiving device is connected to the internal assembly or the handle, the energy receiving device is disposed corresponding to the receiving port.

Abstract: Methods, systems, and computer storage media for providing cloud access management using a tenantless access orchestration engine. Cloud access management supports tenantless access orchestration operations that allow users to use remote client devices in a consumer context. In particular, a remote client device can have an identity to operate on a cloud platform without having a tenant instance associated with the remote client device. In operation, a request is communicated to an identity provider to create identity provider data for a remote client device of a cloud platform. Based on communicating the request, a bootstrap token containing a remote client identifier is received. The remote client device is provisioned based on creating a set of cloud resources for the remote client device and installing the bootstrap token onto a virtual machine associated with the remote client device. The virtual machine is associated with a cloud-provider-managed environment of the cloud platform.

Abstract: A modular wind turbine blade includes a blade root, an intermediate portion and a blade tip. The intermediate portion includes a plurality of modular blades, two adjacent modular blades being provided at edge thereof with a first connecting portion and a second connecting portion that cooperate with each other, and wherein the plurality of modular blades includes a trailing edge shell, a leading edge shell and a main beam, respectively, the first connecting portion at the edge of the trailing edge shell and the leading edge shell being fixedly connected to the second connecting portion at the edge of the main beam. The wind turbine blade according to the present invention adopts segmented modular structural design, which effectively reduces the mold occupancy time of the blade, shortening the production cycle and improving the molding efficiency.

Abstract: A distributed optimization control method for an aircraft energy system considering loss includes the following steps: S1, based on characteristics of the actual near-space aircraft energy system and the near-space environment, the multi-bus DC microgrid system model is established for the near-space aircraft energy system according to Kirchhoff's law; S2, according to the energy scheduling requirement of the near-space aircraft energy system, the system control target is established; S3, according to the system control target, the optimal scheduling problem of the aircraft energy system considering operating loss is established; and S4, based on projection and penalty, the distributed optimization control algorithm is designed. The distributed optimization control method realizes bus voltage regulation and current distribution.

Abstract: A machine vision-based automatic identification and rating method and system for a low-magnification acid etching defect.

Abstract: Disclosed in the present disclosure is a method for smelting a high-temperature alloy with an ultrahigh N content in a VIM furnace, and a high-temperature alloy with an ultrahigh N content. The VIM-furnace smelting method comprises a smelting step performed in a VIM furnace, and a casting step, wherein at a later stage of smelting, a nitrogen-containing substance is added to the VIM furnace to adjust the content of N. In the present disclosure, by comprehensively improving the raw materials, the smelting process, etc., the yield of N during a VIM-furnace smelting process is increased and accurate control over the content of N in the high-temperature alloy is achieved, such that a target content of nitrogen can be guaranteed, and an ideal product can thus be obtained.

Abstract: A construction method for a spatial aggregate reinforced 3D printed concrete structure, includes: selecting a structural member, performing mechanical analysis, and determining a basic dosage and a printing and weaving process of an implanted reinforcement, determining a type, positioning and dosage of a spatial aggregate, preparing 3D printing materials, editing an electromagnetic signal and positioning push program according to the selected positioning and dosage of the spatial rigid aggregate, the 3D printing material is extruded along the printing and weaving process and the spatial rigid aggregate is evenly scattered, and realizing the connection between spatial aggregates and the connection between the spatial aggregates and the reinforcements, a spatial aggregate reinforced 3D printed concrete structure is formed after layer-by-layer construction, superimposed and hardened, or after segmented printing, component nodes are connected through lap design of preset tenon and mortise and reinforcement.

Abstract: An information transmission method is provided, including: A control device obtains a second universal serial bus video class UVC port and a second virtual network port based on configuration of a universal serial bus USB port of the control device. The control device determines address information of a camera device, where a first UVC port and a first virtual network port are configured on the camera device, and the first UVC port and the first virtual network port are obtained based on configuration of a USB port of the camera device. The control device sends the address information to the camera device through a UVC channel, where the UVC channel is established based on the first UVC port and the second UVC port.

Abstract: The present invention discloses a construction method of 3D printing and weaving integrated building, comprising: selecting basic building structural components, using finite element analysis after spatial modeling, and combining stress nephogram to set a discrimination domain value and optimize a structure space, obtaining a structural component skeleton; calculating and analyzing the structural component skeleton, determining a weaving range and weaving density of a wire according to weak areas and sizes under structural stress; and then determining a printing process and weaving process according to the structural component skeleton, the weaving range and the weaving density; preparing 3D printing material; 3D printing a matrix and weaving the wire according to the printing process and weaving process, constructing layer by layer, or printing segments, and then connecting segments by preset tenoning structural sections to form a 3D printing and weaving integrated building.

Abstract: Disclosed in the present disclosure is a method for smelting a high-temperature alloy with an ultrahigh N content in a VIM furnace, and a high-temperature alloy with an ultrahigh N content. The VIM-furnace smelting method comprises a smelting step performed in a VIM furnace, and a casting step, wherein at a later stage of smelting, a nitrogen-containing substance is added to the VIM furnace to adjust the content of N. In the present disclosure, by comprehensively improving the raw materials, the smelting process, etc., the yield of N during a VIM-furnace smelting process is increased and accurate control over the content of N in the high-temperature alloy is achieved, such that a target content of nitrogen can be guaranteed, and an ideal product can thus be obtained.

Abstract: A rotating shaft mechanism includes a body, a first door plate, a second door plate, an intermediate door plate, a first connecting rod assembly, and a second connecting rod assembly. The first connecting rod assembly includes a first housing connecting rod, a first gear connecting rod, and a first secondary connecting rod. The rotating shaft mechanism further includes a first meshing transmission structure. The first housing connecting rod, the first gear connecting rod, the first secondary connecting rod, the first door plate, and the body form a crank-slider structure to drive the first door plate to rotate relative to the body. The first gear connecting rod drives the intermediate door plate to move relative to the body using the first meshing transmission structure.

Abstract: A machine vision-based automatic identification and rating method and system for a low-magnification acid etching defect.

Abstract: A multi-functional massager, including a foot massage mechanism and a leg massage mechanism; the foot massage mechanism has a foot massage assembly provided within a first housing to provide foot massage, and the leg massage mechanism has two adjacent slots formed within a second housing; massage airbags are provided in the slots; two sides of the second housing is rotatably connected to two side surfaces of the first housing. Accordingly, simultaneous foot and leg massage can be achieved, and the massager can be folded in a storage position to form a footstool.

Abstract: A radio frequency laser includes: a power box, a radio frequency cavity, an electrode, and a first metal blocking ring. A bottom plate of the power box is provided with a first installation hole and a first installation groove, and the first installation groove is arranged around the first installation hole. A top plate of the radio frequency cavity is provided with a second installation hole and a second installation groove, and the second installation groove is arranged around the second installation hole. When the power box is assembled with the radio frequency cavity, the second installation hole corresponds to the first installation hole, and the second installation groove corresponds to the first installation groove.

Abstract: A modular wind turbine blade includes a blade root, an intermediate portion and a blade tip. The intermediate portion includes a plurality of modular blades, two adjacent modular blades being provided at edge thereof with a first connecting portion and a second connecting portion that cooperate with each other, and wherein the plurality of modular blades includes a trailing edge shell, a leading edge shell and a main beam, respectively, the first connecting portion at the edge of the trailing edge shell and the leading edge shell being fixedly connected to the second connecting portion at the edge of the main beam. The wind turbine blade according to the present invention adopts segmented modular structural design, which effectively reduces the mold occupancy time of the blade, shortening the production cycle and improving the molding efficiency.

Abstract: A massage head assembly, including a massage head base disc (1), a massage head support (2), and silicone massage heads (3). The silicone massage heads (3) are fixed on the massage head support (2), the massage head support (2) is detachably fixed on the massage head base disc (1), the silicone massage heads (3) are hollow, and a buffer space (31) is formed between inner walls of the silicone massage heads (3) and the massage head support (2). The overall structure of the massage head assembly is simple, and when used for massaging the human body, the massage head assembly provides a comfortable massage.

Abstract: A fluidic system for fraction collection comprises a switching valve having a plurality of ports for connecting first and second ports in different configurations. An inlet line is directly connected to the first port, and a collection device is directly connected to the second port. In a collection configuration, the first port and the second port are connected. The ports further comprise third and fourth ports, and the fluidic system further comprises a buffer section directly connected to the third and fourth ports. The fluidic system further comprises a first collection reservoir and is configured to position the collection device to expel a fluid into the first collection reservoir. In a buffer configuration, fluid flows through the inlet line, the first port, the third port, the buffer section, the fourth port, the second port, and the collection device.

Abstract: The present invention discloses a construction method for a spatial aggregate reinforced 3D printed concrete structure, including: selecting a structural member, performing mechanical analysis, and determining a basic dosage and a printing and weaving process of an implanted reinforcement or braided rope/wire material, determining a type, positioning and dosage of a spatial aggregate, preparing 3D printing materials, editing an electromagnetic signal and positioning push program of the spatial rigid aggregate according to the selected positioning and dosage of the spatial rigid aggregate, the 3D printing material is extruded along the printing and weaving process and while the reinforcement is implanted or the rope/wire is woven into the space, the spatial rigid aggregate is evenly scattered, and realizing the connection between spatial aggregates and the connection between the spatial aggregates and the reinforcements or ropes/wires respectively, a spatial aggregate reinforced 3D printed concrete structure i