Abstract: An antenna structure includes a substrate, a plurality of reflective plates, a grounding plate, a radiating member and a plurality of conductive vias. The substrate contains liquid crystal polymer and has opposite first and second surfaces. The reflective plates are arranged in an array on the first surface of the substrate. The grounding plate is arranged on the second surface of the substrate and overlaps with the reflective plates in a normal direction of the substrate. The radiating member is on the second surface of the substrate and does not overlap with the reflective plates in the normal direction of the substrate. The radiating member has an open slot which is defined by a first radiating branch and a second radiating branch that generate at least two different operating frequency bands. The conductive vias respectively penetrate the substrate and connect with the reflective plates and the grounding plate.

Abstract: The present disclosure relates to a modified ternary and lithium manganese iron phosphate composite material and a preparation method and an application thereof. The material includes a modified ternary material and a modified lithium manganese iron phosphate material that are composite; wherein the modified ternary material includes a ternary material, a ternary material double-layer cladding layer, and ternary material doped metal ions; the ternary material double-layer cladding layer includes a ternary material metal oxide layer and a ternary material cationic cladding layer; the modified lithium manganese iron phosphate material includes a lithium manganese iron phosphate material, a lithium manganese iron phosphate double-layer cladding layer, and lithium manganese iron phosphate doped metal ions; the lithium manganese iron phosphate double-layer cladding layer includes a lithium manganese iron phosphate metal oxide layer and a lithium manganese iron phosphate cationic cladding layer.

Abstract: A material of ternaries co-doped with lithium manganese iron phosphate, a method of manufacturing the material, and an application of the material are provided. The material of ternaries co-doped with lithium manganese iron phosphate includes a monocrystalline ternary, a polycrystalline ternary, and lithium manganese iron phosphate. A particle size distribution of the monocrystalline ternary in the present disclosure is between the large particles of the polycrystalline ternary and the small particles of the lithium manganese iron phosphate.

Abstract: The present disclosure relates to a fiber-reinforced copper-based brake pad for high-speed railway train, and preparation and friction braking performance thereof. The fiber-reinforced copper-based brake pad for high-speed railway train comprises 80-98.5 wt. % metal powder, 1-15 wt. % non-metal powder and 0.5-5 wt. % fiber component. In addition, some components are added in a specific proportion to achieve optimal performance. The copper-based powder metallurgy brake pad is obtained by powder mixing, cold-pressing and sintering with constant pressure. The friction braking performance of the obtained brake pad is tested according to a braking procedure consisting of three stages, i.e., the first stage with low-pressure and low-speed, the second stage with high-pressure high-speed and the continuous emergency braking third stage with high-pressure and high-speed.

Abstract: A catalyst contains a metal oxide, and a molecular sieve, in a crystal form, having a topological pore structure. The metal oxide is centrally distributed on the surface of the molecular sieve. Grains of the molecular sieve are exposed to at least three families of crystal planes. The family of crystal plane with the largest pore size in topology is occupied by the metal oxide by no more than 30%, preferably no more than 20%, or no more than 10%.

Abstract: A modified lithium manganese iron phosphate positive electrode material and a preparation method and an application thereof are provided. The modified lithium manganese iron phosphate positive electrode material includes a doped lithium manganese iron phosphate core; and a coating layer disposed on a surface of the doped lithium manganese iron phosphate core. The doped lithium manganese iron phosphate core comprises an Nb element, and the coating layer comprises LiNbO3 and Nb2O5.

Abstract: This disclosure provides a composite positive electrode material and a preparation method and application thereof. The method includes the following steps: (1) mixing a first lithium source, a manganese source, an iron source, and a phosphorus source with a solvent to obtain a lithium manganese iron phosphate precursor, performing thermal treatment on the lithium manganese iron phosphate to obtain lithium manganese iron phosphate powder, mixing a nickel cobalt manganese hydroxide with a second lithium source, and performing sintering treatment to obtain a nickel-cobalt-lithium manganese oxide positive electrode material; (2) mixing the lithium manganese iron phosphate powder and lithium nickel cobalt manganese oxide positive electrode material obtained in step (1) with a metal-organic framework (MOF) material, and stirring to obtain mixed powder; and (3) performing calcination treatment on the mixed powder obtained in step (2) to obtain the composite positive electrode material.

Abstract: A wireless communication module is provided. The wireless communication module is configured to be installed on a server. The wireless communication module includes a carrier and a first wireless communication unit. The carrier is configured to be electrically coupled to the server. The first wireless communication unit is arranged on the carrier, and is electrically coupled to the carrier. The first wireless communication unit is configured to be controlled by the server via the carrier to emit and/or receive the radio wave. A related server is also provided.

Abstract: Exemplary semiconductor processing chambers may include a substrate support positioned within a processing region of the semiconductor processing chamber. The chamber may include a lid plate. The chamber may include a gasbox positioned between the lid plate and the substrate support. The gasbox may be characterized by a first surface and a second surface opposite the first surface. The gasbox may define a central aperture. The gasbox may define an annular channel in the first surface of the gasbox extending about the central aperture through the gasbox. The gasbox may include an annular cover extending across the annular channel defined in the first surface of the gasbox. The chamber may include a blocker plate positioned between the gasbox and the substrate support. The chamber may include a ferrite block positioned between the lid plate and the blocker plate.

Abstract: An ultrasound patch may conform to a curved surface of a large, curvilinear part of a human body, and may capture ultrasound images of underlying tissue for detection of disease. The patch may comprise a flexible, elastomeric substrate, in which phased arrays of piezoelectric ultrasound transducers are embedded. The phased arrays may steer ultrasound beams through a wide angle to image a large volume of tissue. Mechanical deformation of the flexible substrate as it conforms to a curvilinear body part may change the relative 3D positions of the phase arrays. However, localization may be performed to detect these 3D positions. Data captured by the phased arrays may be processed, to create an ultrasound image of the underlying tissue. A semi-flexible, intermediate layer may partially encapsulate each phased array, to distribute stress at an interface between the rigid phased array and more flexible substrate.

Abstract: Oxygen electrodes are provided, comprising a perovskite compound having Formula (I), Sr(Ti1-xFex-yCoy)O3-?wherein 0.90?x?0.40 and 0.02?y?0.30. Electrochemical devices comprising such oxygen electrodes are also provided, comprising a counter electrode in electrical communication with the oxygen electrode, and a solid oxide electrolyte between the oxygen electrode and the counter electrode. Methods of using such electrochemical devices are also provided, comprising exposing the oxygen electrode to a fluid comprising O2 under conditions to induce the reaction O2+4e??2O2?, or to a fluid comprising O2? under conditions to induce the reaction 2O2??O2+4e?.

Abstract: Proposed is a method of preparing an independent free-standing graphene film. The graphene film is obtained by means of suction filtration of graphene oxide into a film, solid phase transfer, chemical reduction and the like steps. The graphene film is formed by means of physical cross-linking of a single layer of oxidized/reduced graphene oxide. The graphene film has a thickness of 10-2000 atomic layers. The graphene oxide film has a small thickness and a large number of defects inside, so that it has good transparency and excellent flexibility. On the basis of the transfer film-forming method above, an independent free-standing wrinkled graphene film having a nanoscale thickness is prepared by using a poor solvent and a special high temperature annealing process, and an independent free-standing foamed graphene film having a nanoscale thickness is obtained by using a film-forming thickness and a special high temperature annealing process.

Abstract: Examples disclosed herein relate to a method and apparatus for cleaning and repairing a substrate support having a heater disposed therein. A method includes (a) cleaning a surface of a substrate support having a bulk layer, the substrate support is disposed in a processing environment configured to process substrates. The cleaning process includes forming a plasma at a high temperature from a cleaning gas mixture having a fluorine containing gas and oxygen. The method includes (b) removing oxygen radicals from the processing environment with a treatment plasma formed from a treatment gas mixture. The treatment gas mixture includes the fluorine containing gas. The method further includes (c) repairing an interface of the substrate support and the bulk layer with a post-treatment plasma. The post-treatment plasma is formed from a post-treatment gas mixture including a nitrogen containing gas. The high temperature is greater than or equal to about 500 degrees Celsius.

Abstract: A dynamic system for a lifting apparatus is disclosed. The dynamic system includes a first motor and a second motor decoupled from the first motor. During the ascent of the lifting apparatus, only the first motor is involved in the driving of the lifting apparatus. During the descent of the lifting apparatus, only the second motor is involved in charging the battery system. Since the first motor and the second motor are decoupled from each other, the first motor can have a high driving efficiency and the second motor can have a high power generation efficiency, the problem that when only one motor is adopted, the motor needs to balance between the driving efficiency and power generation efficiency is solved. The energy recovery rate of this invention can be increased from 10% in the prior art to about 30%.

Abstract: A riser card module is provided. The riser card module is configured to be coupled to a server. The riser card module includes a carrier and an adapter interface. The carrier is configured to be electrically coupled to the server. The adapter interface is arranged on the carrier, and is electrically coupled to the carrier. The adapter interface is configured to be coupled to different external devices to expand different functions for the server via the carrier. The adapter interface is a mezzanine interface. A related server is also provided.

Abstract: According to embodiments of the present invention, a photodiode detector is provided. The photodiode detector includes an optical cavity including an overlying light-receiving portion and an underlying minor; and a GeSn absorption layer. The GeSn absorption layer may be disposed within the optical cavity and arranged between the overlying light-receiving portion and the underlying mirror. The overlying light-receiving portion may be configured to receive light to be detected by the photodiode detector. According to further embodiments of the present invention, a method of fabricating a photodiode detector is also provided.

Abstract: Methods and systems are provided for differentiating an XR device from other devices when initiating communications with an Internet gateway. Initially the XR device sends a probe request to the Internet gateway, where the probe request includes an identifier of the device type and network requirements of the XR device. It is determined that the particular device type and network requirements in the probe request are supported by the Internet gateway, and is communicated to the XR device in the form of a probe response. A communication session is set up between the XR device, the Internet gateway, and a network, the communication session including QoS control based on the device type and network requirements of the XR device.

Abstract: An ultrasonic data transmission method, apparatus and system, a terminal device and a medium are provided. The method is applied to a transmitting terminal which includes at least two ultrasonic signal transmitting arrays. The method includes: a single-frequency ultrasonic coding signal of to-be-transmitted information corresponding to each ultrasonic signal transmitting array is respectively determined, ultrasonic codes of to-be-transmitted information corresponding to different ultrasonic signal transmitting arrays being different; and corresponding at least two single-frequency ultrasonic code signals are transmitted through the at least two ultrasonic signal transmitting arrays to a receiving terminal in a focusing mode, frequency bands of transmitting frequencies of different ultrasonic signal transmitting arrays being different.

Abstract: The present disclosure relates to the technical field of solar cell preparation, and provides a solar cell, an AlOx depositing method therefor, and a cell back passivation structure and method. In the present disclosure, a silicon wafer which has been subjected to thermal oxidization and annealing is placed into a tubular PECVD equipment. The chamber is vacuumized to a pressure of 100-2000 mTorr and heated to a temperature of 300-400° C. Then nitrous oxide and TMA as reaction gases are introduced in to the chamber. The radio-frequency power supply is turned on and an AlOx passivation film having two-layer, three-layer, or more-layer film structure is prepared.