Abstract: Provided is a balun structure, including: a first dielectric layer, a second dielectric layer, a ground electrode, an unbalance electrode, and a balance electrode. The first dielectric layer, the ground electrode, the second dielectric layer are successively stacked, and the ground electrode has a coupling hole therein. The coupling hole extends from a surface facing the first dielectric layer to a surface facing the second dielectric layer. The unbalance electrode is disposed on a first side of the first dielectric layer, wherein the first side of the first dielectric layer is a side, distal from the ground electrode, of the first dielectric layer. The balance electrode is disposed on a first side of the second dielectric layer, wherein the first side of the second dielectric layer is a side, distal from the ground electrode, of the second dielectric layer.

Abstract: A system and method for Physical Random Access Channel (PRACH) transmission and reception of Random Access (RA) response in New Radio (NR) network. A user equipment (UE) sends to a gNodeB (gNB), an N times Msg 1, on N consecutive Random Access Channel (RACH) Occasion (ROs) with a same Tx beam or a plurality of different Tx beams in a RA attempt; and after the N times transmissions, the UE starts an Random Access Response (RAR) window and monitors all N Random Access-Radio Network Temporary Identities (RA-RNTIs) to receive a network response. Upon successful reception of an RAR message, the UE determines a best transmission beam.

Abstract: Disclosed are a method, apparatus, electronic device, and storage medium for processing information. The method includes: in accordance with detecting an operation of triggering a target object, obtaining a resource attribute of the target object; in accordance with detecting the resource attribute meeting a predetermined condition, making response to a first triggering operation by a user for using the target object, and updating the resource attribute of the target object; and processing a target subject based on the target object, and presenting a processing result on a display interface. The frequency of initiating the request to the server by the user is restricted based on the resource attribute, so that the processing pressure of the server is relieved. Furthermore, the user is stimulated to publish the processed effect images based on resource attributes, so that other end users may use the effects of the target object, thereby interactivity is improved.

Abstract: A semiconductor device for optical signal transmitting includes a substrate and a silicon structure. The silicon structure is formed on a surface of the substrate, wherein the silicon structure comprises an upper surface, a lower surface, and side surfaces between the upper surface and the lower surface, the lower surface is in contact with the surface of the substrate. A plurality of first intermediate surfaces is between the lower surface and the side surfaces, and a plurality of second intermediate surfaces is between the upper surface and the side surfaces. The plurality of first intermediate surfaces is formed at different angles than the side surfaces, and the plurality of second intermediate surfaces is formed at different angles than the side surfaces.

Abstract: Implementations of the subject matter described herein provide a solution for rate control based on reinforcement learning. In this solution, an encoding state of a video encoder is determined, the encoding state being associated with encoding of a first video unit by the video encoder. An encoding parameter associated with rate control in the video encoder is determining by a reinforcement learning model and based on the encoding state of the video encoder. A second video unit different from the first video unit is encoded based on the encoding parameter. In this way, it is possible to achieve a better quality of experience (QOE) for real time communication with computation overhead being reduced.

Abstract: Examples relate to a computer system and to an apparatus device method, and computer program for a computer system. The apparatus comprises processing circuitry is configured to detect the presence of a peripheral device connected to the computer system. The processing circuitry is configured to add the peripheral device to a device tree managed by a firmware of the computer system, by adding a first and a second device node to the device tree, the first device node representing the peripheral device and the second device node representing a reset capability or firmware flash capability of the peripheral device.

Abstract: The present disclosure relates to a conversion device. The conversion device includes a first waveguide and a transition substrate. The first waveguide includes a waveguide transmission cavity and a waveguide back cavity. The transition substrate is provided between the waveguide transmission cavity and the waveguide back cavity. The transition substrate includes at least one dielectric substrate, the dielectric substrate includes a first base substrate and at least one group of signal transmission structures, one of the signal transmission structures includes a CPW signal transmission line and a probe, the CPW signal transmission line includes a signal line and ground electrodes. The probe, the signal line and the ground electrode pass through a transition region, the probe is located in the waveguide transmission cavity, and the signal line and the ground electrode partially extend into the waveguide transmission cavity.

Abstract: The disclosure relates to a solid electrolyte with a modified layer comprises: a solid electrolyte and a modified layer coated on the solid electrolyte. The solid electrolyte and the modified layer are connected by hydrogen bonds. The modified layer comprises an acid-treated carbon matrix and silver nanoparticles modified thereon. A method for preparing a solid electrolyte with a modified layer comprises: treating a carbon matrix with an acid, modifying silver nanoparticles on the acid-treated carbon matrix to obtain the silver nanoparticles modified on the acid-treated carbon matrix (Ag NPs@CNTs), mixing the Ag NPs@CNTs in suspension and coating them on a solid electrolyte, and drying and annealing the solid electrolyte to obtain the solid electrolyte with a modified layer.

Abstract: A semiconductor structure includes a waveguide and an optical attenuator. The waveguide is disposed over an insulating layer and configured to guide light. The optical attenuator is connected to the waveguide. The optical attenuator has a first surface and a second surface opposite the first surface, and a cross-sectional width of the optical attenuator decreases from the first surface to the second surface.

Abstract: The present disclosure provides a method for determining content of olaflur in toothpaste by liquid chromatography-tandem mass spectrometry, comprising the following steps: obtaining to-be-tested toothpaste; dissolving the to-be-tested toothpaste in water and then adding methanol for dilution to obtain a to-be-tested solution; and placing the to-be-tested solution in a liquid chromatograph for determination under following chromatographic conditions: a C4 column; a mobile phase as a combination of phase A being methanol with 0.1% formic acid and phase B being acetonitrile, or a combination of phase A being methanol with 0.1% formic acid and phase B being water; and isocratic or gradient elution. The method can analyze the purity of organic olaflur in fluoride-containing anti-caries toothpaste and olaflur raw materials, and enables quantitative analysis of olaflur by an internal or internal standard method. Furthermore, the method can accurately and qualitatively identify olaflur through characteristic ions.

Abstract: A phase shifter and a preparation method thereof, and an electronic device. The phase shifter includes: an adjustable dielectric layer, arranged between a first electrode layer and a second electrode layer, and including a first support structure, wherein the first support structure is arranged on at least one side of a first region, and an orthographic projection of the first support structure on a first base plate is at least non-overlapping with an orthographic projection of the first region on the first base plate. The phase shifter provided in the present application is arranged in the non-capacitive overlap region between the first base plate and the second base plate through the first support structure, which can not only provide good support, but also reduce or even eliminate the impact on phase shifting, achieving large phase shift amount, high uniformity of phase shift degrees, and low loss.

Abstract: A semiconductor photonics device includes a plurality of grating couplers, each configured to couple a particular wavelength (or wavelength range) of an optical signal to a waveguide of the semiconductor photonics device. In some implementations, various implementations of optical signal splitters or filters described herein enable respective wavelengths (or respective wavelength ranges) to be passed to each of the grating couplers (while filtering out other wavelengths or other wavelength ranges), thereby enabling the grating couplers to each handle a respective wavelength (or respective wavelength range). This enables multiple wavelengths (or multiple wavelength ranges) to be distributed across multiple grating couplers, which may increase the bandwidth of the semiconductor photonics device relative to a semiconductor photonics device that includes only a single grating coupler.

Abstract: Disclosed are a method, apparatus, electronic device, and storage medium for processing information. The method includes: in accordance with detecting an operation of triggering a target object, obtaining a resource attribute of the target object; in accordance with detecting the resource attribute meeting a predetermined condition, making response to a first triggering operation by a user for using the target object, and updating the resource attribute of the target object; and processing a target subject based on the target object, and presenting a processing result on a display interface. The frequency of initiating the request to the server by the user is restricted based on the resource attribute, so that the processing pressure of the server is relieved. Furthermore, the user is stimulated to publish the processed effect images based on resource attributes, so that other end users may use the effects of the target object, thereby interactivity is improved.

Abstract: Implementations of the subject matter described herein provide a solution for rate control based on reinforcement learning. In this solution, an encoding state of a video encoder is determined, the encoding state being associated with encoding of a first video unit by the video encoder. An encoding parameter associated with rate control in the video encoder is determined by a reinforcement learning model and based on the encoding state of the video encoder. A second video unit different from the first video unit is encoded based on the encoding parameter. In this way, it is possible to achieve a better quality of experience (QOE) for real time communication with computation overhead being reduced.

Abstract: A photodetector may include an absorption region that is formed to have an increasing depth (or thickness) in a direction that is approximately parallel to the direction of incident light that is to be projected onto the absorption region. The increasing depth of the absorption region in the direction that is approximately parallel with the direction of incident light enables the incident light to be more uniformly distributed along the length of the absorption region in the direction that is approximately parallel with the direction of incident light. This reduces the likelihood that a particular area of the absorption region reaches optical saturation, which may enable the photodetector to operate a sustained high photodetector sensitivity and/or a sustained high light detection performance, among other examples.

Abstract: The present disclosure provides a phase shifter, an antenna and an electronic device, and belongs to the field of communication technology. The phase shifter includes a plurality of phase shifting units, a first power division network and a second power division network; each phase shifting unit includes a first transmission structure and a second transmission structure; the first power division network includes a first feeding port and a plurality of second feeding ports; the second power division network includes a third feeding port and a plurality of fourth feeding ports; and the first transmission structure of the phase shifting unit is electrically connected to one second feeding port; the second transmission structure of the phase shifting unit is electrically connected to one fourth feeding port.

Abstract: A semiconductor structure includes a waveguide and an optical attenuator. The waveguide is disposed over an insulating layer and configured to guide light. The optical attenuator is connected to the waveguide. The optical attenuator has a first surface and a second surface opposite the first surface, and a cross-sectional width of the optical attenuator decreases from the first surface to the second surface.

Abstract: A photonic device includes a substrate, a P-type doped component disposed over the substrate, an N-type doped component disposed over the substrate, an optical absorption layer disposed over the substrate, and a charging layer disposed over the substrate. The optical absorption layer is disposed between the P-type doped component and the N-type doped component. The optical absorption layer and the substrate have different material compositions. A charging layer is disposed between the P-type doped component and the N-type doped component. The charging layer has a first side surface that is substantially linear. The first side surface is in direct contact with the optical absorption layer.

Abstract: An edge coupler includes a substrate, a first cladding layer over the substrate, a core layer over the first cladding layer, and an ARC layer. The substrate has a first sidewall, the first cladding layer has a second sidewall aligned with the first sidewall, and the core layer has a third sidewall aligned with the second sidewall. The ARC layer lines the first sidewall, the second sidewall and the third sidewall. The ARC layer physically contacts and covers a surface of the substrate. A first height of the ARC layer varies along the surface of the substrate.

Abstract: Disclosed herein are devices, systems, and methods for detecting and classifying the proximity of a human to a wireless antenna. The device may include a processor configured to receive information representing an incident wave and a reflected wave of a transmission on the wireless antenna. The processor may also be configured to analyze the information using one or more classification models, wherein each of the one or more classification models comprise a machine-learning-based classifier that determines, based on the information, whether the object is within a threshold proximity to the wireless antenna, a classification of the object, and/or a separation-distance between the wireless antenna and the object.