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: A carrier allocation method in an optical communication network includes allocating, by a carrier allocation device, a subcarrier to the network device based on the link attenuation information when link attenuation information of the network device belongs to a link attenuation range corresponding to a subcarrier, such that a frequency of the subcarrier matches link attenuation of the network device.

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: The present disclosure provides a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes a substrate, a word line, and at least two dielectric layers. The word line is arranged in the substrate; the at least two dielectric layers are located between the word line and the substrate and have different dielectric constants.

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: An automatic refrigerant charging system, including a charging device, a to-be-charged air conditioner, and a refrigerant storage tank connected to the air conditioner through the charging device. The refrigerant storage tank is configured for storing the refrigerant. The charging device is configured for controlling the refrigerant charge into the air conditioner. The charging device includes a detection member, a charging member and a control member. The detection member and the charging member are installed in the air conditioner, and electrically connected to the control member. The detection member is configured for detecting operation parameters of the air conditioner in real time. The charging member is configured for charging the air conditioner with the refrigerant. The control member is configured for controlling a charging action of the charging member.

Abstract: The disclosure discloses a single-handed operable infant heel blood sampling device and its safety mechanism, including a push-pull rod and an actuating rod partially extending outside the blood sampler housing; the actuating rod has a second hook portion that can engage with the first hook portion; to perform blood sampling, push down the push-pull rod to disengage the buckle portion from the housing, causing the first hook portion to engage with the second hook portion on the first end of the actuating rod; then pull up the push-pull rod to pull the actuating rod, and the actuating rod thus releases a pre-compressed spring set inside the blood sampler housing, allowing the blade originally positioned in a first position inside the housing to slide out from a cutting port and then be retracted into a second position inside the housing.

Abstract: The present disclosure provides a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes a substrate and a word line (WL) structure, wherein the substrate includes trenches arranged in parallel intervals; the WL structure is located in the trenches, and includes a dielectric layer and a conductive layer; the dielectric layer covers a bottom surface and a sidewall of the conductive layer; the conductive layer includes a first conductive layer and a second conductive layer; and a first component is doped in the second conductive layer.

Abstract: A reciprocating power tool includes a transmission that converts rotational force from a motor to linear forces output by a reciprocating device and a counterbalancing device. The transmission is a parallel axis transmission including a first gear portion and a second gear portion formed on a gear shaft, with the first gear portion and the second gear portion rotating together about a first rotational axis. The first gear portion rotates a first output gear and the second gear portion rotates a second output gear about a second rotational axis that is parallel to and offset from the first rotational axis. The first output gear drives the reciprocating device and the second output gear drives the counterbalancing device. The reciprocating device reciprocates linearly and the counterbalancing devices performs a linear reciprocating movement that is opposite that of the reciprocating device to counterbalance forces generated by operation of the reciprocating device.

Abstract: An internal pressure self-sealing rotary compensator has fixed and rotatable pipes; a fixed pipe end portion has a conical opening connected to a sealing base with an inner cavity having an inwardly protruding rotating base; an annular face sealing piece is on a rotating base outer side, and the annular face sealing piece is fixed in an annular face sealing cavity; an end face self-sealing piece is on a rotating base inner side, an end face self-sealing piece outer side face abuts against a rotatable pipe arc-shaped annular protruding face, an arc-shaped annular protruding face outer section smoothly transitions with a first outer conical face at the rotatable pipe end, and an arc-shaped annular protruding face inner section intersects with a rotatable pipe outer surface; the first outer conical face connecting to a second, and the second outer conical face taper matches that of fixed pipe end portion conical opening.

Abstract: A laser-ranging device is attachable to a complete telescope as an independent component. The telescope includes first and second telescope bodies, and the laser-ranging device includes first and second barrels deposed in front of objective lenses of the first and second telescope bodies, respectively. Central axes of the first and second barrels align with those of the first and second telescope bodies, respectively. An interior of the first barrel is provided with a laser transmitter for emitting laser, a first concave mirror for converging and reflecting the laser, and a first dichroic mirror for reflecting the laser and transmitting natural light. An interior of the second barrel is provided with a laser receiver for receiving the laser, a second concave mirror for converging and reflecting the laser, and a second dichroic mirror for reflecting the laser and transmitting the natural light.

Abstract: The present discloses a guide plate structure for injecting a flowable composite resin. The guide plate structure includes a rigid guide plate shell and a soft lining, a plurality of overflow holes are formed on the guide plate shell. The guide plate shell is provided with an injection channel used for injecting a flowable composite resin. A method for manufacturing a guide plate structure for injecting a flowable composite resin is further disclosed, including: S1, manufacturing a wax pattern model; S2, manufacturing a guide plate shell; S3, manufacturing a lining; S4, correcting an edge of the guide plate shell; and S5, cleaning a soft material in an injection channel on the guide plate shell. The present disclosure can resolve the problem of difficulties in placement and displacement of a guide plate when a resin is injected to restore an undercut of a tooth, and improve molding precision of the restoration.

Abstract: Provided is an array substrate, having a plurality of sub-pixel regions. The array substrate includes: a substrate; a pixel electrode layer and a common electrode layer that are disposed on the substrate; and a plurality of common signal lines disposed on the substrate. The plurality of common signal lines are insulated from the pixel electrode layer and electrically connected to the common electrode layer. An overlapped region is present between an orthographic projection of the common signal lines on the substrate and an orthographic projection of the pixel electrode layer on the substrate. The common signal lines have a plurality of electrode structures, wherein different electrode structures of the plurality of electrodes structures are disposed in different sub-pixel regions, and the plurality of electrode structures include a lap electrode lapped to the common electrode layer and an auxiliary electrode not lapped to the common electrode layer.

Abstract: The present invention provides compounds of the formula: wherein Ring A, R1, R2, and R3 are as described herein, pharmaceutically acceptable salts thereof, and methods of using these compounds and pharmaceutically acceptable salts thereof for treating patients for cardiovascular, pulmonary and/or renal conditions, diseases and/or disorders.

Abstract: A low-carbon production method and production system for cement clinker. The production method comprises calcining a metal oxide, which is obtained by converting carbonate in a raw material by means of a methane dry reforming reaction, to form cement clinker, and meanwhile obtaining synthesis gas. The production system uses a reformer furnace for methane dry reforming of carbonate to replace a carbonate decomposition furnace in an existing cement production system.

Abstract: A neural network model processing method includes obtaining a first low-bit neural network model through training, where the model includes a first operation layer and a second operation layer. Each operation layer includes at least one operation. Values/a value of a parameter and/or data used for the operation are/is represented by using N bits, and N is a positive integer less than 8. The neural network model processing method further includes compressing the model to obtain a second low-bit neural network model, where the compressed model includes a third operation layer. The third operation layer is equivalent to the first operation layer and the second operation layer, and an operation layer other than the third operation layer in the at least one operation layer is the same as an operation layer other than the first operation layer and the second operation layer in the at least two operation layers.

Abstract: The present invention relates to a two-component coating composition, a coating method and use of the composition, and a product coated with the coating composition. The two-component coating composition comprises a component A and a component B, wherein the component A comprises an aqueous hydroxyl-containing polyacrylic dispersion, the component B comprises a polyether-modified polyisocyanate, wherein the composition has a molar ratio of isocyanate groups and hydroxyl groups of 1.2:1 to 2:1; wherein the aqueous hydroxyl-containing polyacrylic dispersion has a hydroxyl content of greater than 2% by weight, relative to the total weight of solids of the aqueous hydroxyl-containing polyacrylic dispersion, and wherein the aqueous hydroxyl-containing polyacrylic dispersion has a weight-average molecular weight of not higher than 450000. The two-component coating composition provided by the present invention has a matte effect and is easy to clean.

Abstract: The present invention discloses a blue luminescent composition and an organic electroluminescent device comprising the blue luminescent composition. The blue luminescent composition comprises a host material with a general structural formula as represented by Formula I and a guest material with a general structural formula as represented by Formula II. In the present invention, a composition composed by rational combination of a compound containing a dibenzofuran group and deuterium-substituted anthracene as a host material and a compound containing a cycloalkyl group and a steric hindrance group such as thiophene as a guest material is capable of significantly enhancing the stability and lifetime of a blue-light organic electroluminescent device while enhancing the electron migration and transfer efficiency and eliminating a host luminescence phenomenon.

Abstract: Embodiments of the present disclosure provide a spectrum sensing method, an electronic device and a storage medium. The spectrum sensing method includes: acquiring first frequency domain data of a target subband according to a predefined sensing granularity; calculating a feature of the target subband according to the first frequency domain data, wherein the feature comprises at least one of a space domain energy feature and a space domain angle fluctuation feature; and inputting the feature into a trained spectrum sensing model to obtain a spectrum sensing result for the target subband.