Abstract: An electronic device such as a head-mounted display device may include an antenna that radiates through a cover. The antenna may have a ground and an antenna resonating element layered onto the cover. The ground may include conductive structures separated from the resonating element by a volume. The device may include a fan that conveys air through a vent in a chassis of the electronic device through a tunnel. The tunnel may be free from conductive material and may extend through the volume of the antenna. The fan may include blades enclosed within metal walls. A conductive mesh may be coupled between the metal walls and may separate the blades from the tunnel. This may serve to extend the volume of the antenna to also include at least some of the volume of the fan, thereby maximizing efficiency bandwidth of the antenna without sacrificing thermal dissipation by the fan.

Abstract: Proposed is a console device having a technology of a console cover opening and closing control structure in which a console cover is operable of being selectively opened in one of a front side and a rear side while maintaining the other side, which is not opened, securely locked.

Abstract: Provided are a method of managing off-chain data and a device therefor. A method of operating a device that constitutes a blockchain network includes generating a first hash value regarding unit data using a first hash function and determining a target shard to store the unit data from among a plurality of shards based on the first hash value, transmitting a first request to store the unit data in the target shard to an external device, and obtaining a changed root value of the target shard changed as the unit data is stored from the external device, wherein the root value represents entire data stored in the target shard.

Abstract: Provided is a method for manufacturing yarn for a cell culture scaffold. The method includes: (1) preparing a ply yarn by twisting a plurality of fiber strands; and (2) partially untwisting at least one part of the ply yarn in the longitudinal direction in a direction opposite to a direction in which the fiber strands are twisted to implement a space which is formed by spacing apart of the adjacent fiber strands within the untwisted part. The fiber strand is spun yarn, filament yarn or slitting yarn.

Abstract: A proximal-femur intraosseous release device includes a release mechanism, wherein a primary fixing mechanism is provided at one end of the release mechanism, the primary fixing mechanism includes a first shell, and a second shell, a first triangular block and a second triangular block are arranged inside the first shell; the second shell is screwed to the first shell through threads, a bottom of the second shell is rotatably connected with the first triangular block, the first triangular block is slidably connected with the first shell, a bottom surface of the first triangular block is an inclined surface, the second triangular block is located at a bottom of the first triangular block, a top surface of the second triangular block is an inclined surface, and a through hole matched with the second triangular block is formed in the first shell.

Abstract: The present disclosure provides a display device and an array substrate. The array substrate includes: a substrate, and a pixel circuit, a data signal line, a test pad group, and a test switch circuit that are provided on a side of the substrate, where the data signal line is electrically connected to the pixel circuit, the test pad group is in the chip bonding region, the test switch circuit is in the peripheral region and at a side of the pixel region away from the chip bonding region, and the test switch circuit is configured to connect or disconnect the data signal line and the test pad group.

Abstract: An electronic device such as a head-mounted display device may include an antenna that radiates through a cover. The antenna may have an antenna resonating element layered onto the cover and having a three-dimensional curvature. The antenna resonating element may have an antenna ground. A pressure-activated connector may electrically couple the antenna resonating element to the antenna ground. If desired, the pressure-activated connector may lock the antenna resonating element to the antenna ground. The pressure-activated connector may include a metal finger, a metal spring, a metal ball, a curling metal receptacle, a dimple, a metal screw, a screw receptacle, metal burs, and/or rotational locking structures. The pressure-activated connector may form a robust mechanical connection between the first and second conductors despite the curvature of the antenna resonating element, which minimizes electrical discontinuities that can otherwise deteriorate antenna performance.

Abstract: An organometallic compound represented by Formula 1: M1(L1)n1(L2)n2??Formula 1 wherein M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2, wherein X1 is C or N; X2 is C or N; X3 is C or N; and X4 is C or N; Y1 is O, S, or Se; R32 and R33 are each independently deuterium, a substituted C1-C60 alkyl group comprising deuterium, a substituted C3-C10 cycloalkyl group comprising deuterium, a substituted C6-C60 aryl group comprising deuterium, or a substituted C1-C60 heteroaryl group comprising deuterium, and the remaining substituent groups in Formulae 1A and 1B are each as described herein.

Abstract: A power-supply mode switching circuit and an aerosol generating device are provided. The power-supply mode switching circuit includes an external-power-source power-supply circuit, a protection circuit, and a battery power-supply circuit. A node where the external-power-source power-supply circuit is connected to the protection circuit serves as a power-source input end. A node where the external-power-source power-supply circuit is connected to the battery power-supply circuit serves as a power supply end. The protection circuit is configured to control the battery power-supply circuit to be cut off when the power-source input end is connected to the external power source, to make the external power source supply power to the power supply end. The protection circuit is further configured to control the battery power-supply circuit to be conducted when the power-source input end is not connected to the external power source, to make the battery supply power to the power supply end.

Abstract: A printed circuit board includes a glass layer, a through-hole penetrating through the glass layer, a seed layer provided along an inner wall of the through-hole, and a through-via disposed on the seed layer and filling the through-hole. The seed layer includes a carbon-based conductive material.

Abstract: The present invention provides an indoor mobile robot glass detection and map updating method based on depth image inpainting. The method comprises: first screening, based on laser radar intensity data, a region in which glass is suspected to be present; determining, based on an RGB image of the suspected region and by using a convolutional neural network, whether glass is really present; if glass is really present, extracting a glass region boundary, determining a defect point of a depth image, and performing depth information supplementing on the defect point based on the glass region boundary; and finally, performing plane sampling on the depth image, inpainting and updating a missing glass obstacle in an original map, and outputting a grid map for planning. Therefore, a problem, that the existing mapping algorithms and devices are prone to glass perception failure due to the characteristics of glass transmission, refraction, polarization, etc., affecting the map integrity and navigation safety, is solved.

Abstract: This application discloses a method and apparatus for backscatter signal transmission, a communication device, and a readable storage medium. The method includes: determining, by a tag based on first information, a parameter related to transmission of a backscatter signal; where the first information includes at least one of the following: a first identifier, where the first identifier includes an identifier of the tag or a temporary identifier of the tag; a first value, where the first value is used to indicate a random number generated by the tag; a second value, where the second value is used to indicate a counter value of the tag; a third value, where the third value is used to indicate a counter step of the tag; a group identifier or intra-group identifier of the tag; a session number or a process number; or information received from a reader/writer.

Abstract: A method and apparatus for fast generating a full snapshot, an electronic device and a storage medium. The method includes the following: creating a source data volume and allocating a first-level data pointer table, where the first-level data pointer table records location information of multiple second-level data pointer tables; when data is written into the source data volume, determining, according to a written data offset, whether a target second-level data pointer table in which the written data is located exists and is valid; in response to determining that the target second-level data pointer table exist and is valid, writing the data into the source data volume and recording a write location of the data in the target second-level data pointer table; and when a snapshot is created, copying the first-level data pointer table as a first-level data pointer table for the snapshot.

Abstract: An apparatus and a method for supporting generation of high-efficient annotation for massive data labeling are disclosed. An apparatus for supporting generation of annotation may include a labeling supporter which receives one or more raw data from a database to generate one or more labeling candidate information for each of one or more raw data and an interface which outputs one or more labeling candidate information.

Abstract: A battery pack includes a plurality of pouch-type battery cells; a pack case accommodating the pouch-type battery cells in the internal space; and a cell cover. The cell cover includes two unit covers at least partially spaced apart, provided to at least partially surround at least some of the pouch-type battery cells among the plurality of pouch-type battery cells in the internal space of the pack case. The cell cover is configured to allow venting gas to be discharged into the separation space between the two unit covers, thereby ensuring excellent safety when a thermal event occurs. Moreover, the present application discloses a battery module and a vehicle including the same.

Abstract: A display device includes: pixels connected to scan lines, data lines, a first power line, a second power line, and a third power line, where each of the pixels includes a light emitting device and a driving transistor for controlling an amount of current supplied to the light emitting device; and a timing controller for generating output data by using input data. The pixels emit light in response to a data signal corresponding to the output data during a normal driving period, and receive a bias voltage during a recovery driving period in which the pixels do not emit light after the normal driving period. The timing controller is configured to control a length of the recovery driving period in response to the input data.

Abstract: The present disclosure provides a matte resin composition, a preparation method thereof, a matte film, and an artificial nail. The matte resin composition comprises: a photoinitiator, a matting agent, an optional diluent, an optional corrosive agent, and polyurethane (methyl) acrylate, where a monomer of the polyurethane (methyl) acrylate has a functionality between 2 and 6; and/or the polyurethane (methyl) acrylate has a molecular weight between 1000 and 2000 Da. The matte resin composition disclosed herein exhibits excellent matting effect and may achieve such matting effect without coating additional substances. Moreover, the matte resin composition disclosed herein demonstrates high adhesion force without polishing during usage.

Abstract: A cracking furnace system for converting a hydrocarbon feedstock into cracked gas includes a convection section, a radiant section and a cooling section. The convection section includes a plurality of convection banks configured to receive only a hydrocarbon feedstock and a diluent. The radiant section includes a firebox comprising at least oxygen or oxygen enriched air burners and several radiant coils configured to heat up the feedstock to a temperature allowing a pyrolysis reaction. The cooling section includes at least two transfer line exchangers (TLE), a primary transfer line exchanger (PTLE) and a secondary transfer line exchanger (STLE).

Abstract: A display apparatus including a panel substrate, a TFT panel part including a plurality of connection electrodes disposed on an upper surface of the panel substrate, and a light emitting diode part disposed on the TFT panel part and including a plurality of light emitting modules adjacent to each other, in which each of the light emitting modules includes a plurality of pixels, each of the pixels includes three sub-pixels, and the three sub-pixels include blue light emitting diodes, green light emitting diodes, and red light emitting diodes.

Abstract: An accumulator includes a body having an upper body and a lower body. The upper body and lower body are coupled with each other to have a chamber in the body. The accumulator includes: a refrigerant inlet port disposed on the upper body and allowing a mixed refrigerant of a liquid refrigerant and a gaseous refrigerant to flow into the chamber; a refrigerant outlet port disposed on the upper body and allowing the gaseous refrigerant separated from the liquid refrigerant to flow out; and a baffle assembly having a vertical baffle being vertically disposed in the chamber to impede a horizontal flow of the liquid refrigerant, a suction pipe guiding the gaseous refrigerant separated from the liquid refrigerant to the refrigerant outlet port, and a horizontal baffle being horizontally disposed in the chamber to impede a vertical flow of the liquid refrigerant.