Abstract: Disclosed in the present application is a flue gas circulation system for improving combustion characteristics and thermal characteristics of a pulverized coal fired boiler. The flue gas circulation system comprises a plurality of circulation flue gas leading-out ports provided in a hearth outlet flue of a boiler, wherein the circulation flue gas leading-out ports are connected to a circulation flue gas leading-out main pipe by means of a circulation flue gas leading-out pipeline; the circulation flue gas leading-out main pipe is connected to a circulation flue gas leading-in main pipe; the circulation flue gas leading-in main pipe is connected to a circulation flue gas leading-in pipeline; and the circulation flue gas leading-in pipeline is connected to a hearth.

Abstract: A dot sight includes a sight mount, a sight frame, a light source member, a collimator lens set, a reflector, and a beam splitter prism, where a first chamber is formed in the sight mount; the sight frame is provided at a circumferential side of the sight mount close to an eye side; a second chamber, and a through opening communicating the second chamber and the first changer are formed in the sight frame; the light source member is provided at an end of the first chamber close to an object side, and configured to emit light to the eye side; the collimator lens set is provided in the first chamber; the reflector is provided in the first chamber, and corresponding to the through opening; the beam splitter prism is provided in the second chamber; and an axial position of the light source member is adjustable.

Abstract: Provided is a method for preparing a polyethylene glycol-modified urate oxidase, at least 11 of the following amino acid sites of the polyethylene glycol-modified urate oxidase have a PEG modification: T1, K3, K4, K30, K35, K76, K79, K97, K112, K116, K120, K152, K179, K222, K231, K266, K272, K285, K291, and K293, and the preparation method includes: performing a coupling reaction between urate oxidase and polyethylene glycol, wherein the polyethylene glycol is provided in the form of an acidic solution, and a molar ratio of the urate oxidase to the polyethylene glycol is 1: (56 to 94), to obtain the polyethylene glycol-modified urate oxidase.

Abstract: Solid-state battery cells and a method of making solid-state battery cells are disclosed. The method includes laser-patterning a cathode layer on a substrate to form a cathode for each cell, forming an insulator between cathodes that exposes an uppermost surface of each cathode, blanket-depositing a solid-state electrolyte layer on the cathodes and the insulator, blanket-depositing an anode current collector (ACC) layer on the electrolyte layer, and patterning the ACC layer and the electrolyte layer to form an electrolyte and an ACC in each cell. The cell includes a substrate, a cathode having sidewalls at an angle of 5-75°, an insulator surrounding a base of the cathode, a solid-state electrolyte on the cathode, an ACC on the electrolyte, an encapsulant on the ACC and the insulator, an insulator layer along one sidewall of the cell, and a redistribution layer on the encapsulant and the insulator layer, electrically contacting the ACC.

Abstract: Provided are a box, a battery, an electrical device, and a method for manufacturing the battery, which belong to the technical field of energy storage devices. The box is applicable to a battery, the battery includes a battery cell, in which the box includes a plurality of box walls, in which the plurality of box walls enclose a first chamber for accommodating the battery cell, and at least one of the box walls is internally provided with a second chamber for accommodating fire-fighting agent, in which the first chamber and the second chamber are configured to be able to communicate with each other when the battery cell is thermal-runaway, so that the fire-fighting agent releases fire-fighting medium into the first chamber. The box, the battery, the electrical device and the method for manufacturing the battery can improve the safety performance of the battery.

Abstract: Provided are an external adjustment base for a sight and the sight. The external adjustment base for a sight includes: a base body, a first adjustment assembly, and a second adjustment assembly, where the first adjustment assembly includes a first adjustment rod, and the second adjustment assembly includes a second adjustment rod; one end of the first adjustment rod and one end of the second adjustment rod are located on a lateral side of the base body; the first adjustment rod and the second adjustment rod are configured to be connected to a sight body; the first adjustment assembly is configured to cause the sight body to rotate about the second adjustment rod with the rotation of the first adjustment rod; and the second adjustment assembly is configured to cause the sight body to move along the second adjustment rod with the rotation of the second adjustment rod.

Abstract: Provided is a dot sight. The dot sight includes a sight body, a first lens, a light source mechanism, and a battery mechanism, where the sight body is provided with a bottom and a side wall; and the bottom and the side wall enclose an optical channel open at two ends. During mounting, the bottom of the sight body is connected to a firearm body or a connecting base plate, and the light source mechanism and the battery mechanism are disposed on the side wall of the sight body except the bottom. This renders the bottom a small thickness, which is not larger than the height of centers of a rear sight and a front sight after the sight is mounted. Thus, the bottom of the sight avoids obstructing the mechanical sight mechanism, allowing the shooter to see the front sight through the optical channel on the sight body.

Abstract: A speech signal processing method is described. A first speech signal captured by a first pickup unit is obtained, where the first speech signal includes an environmental noise signal. While a voice service is performed using a second speech signal captured by a second pickup unit of the wearable device, a first duration based on the first speech signal is obtained, where the first duration is a duration in which noise energy of the environmental noise signal is continuously greater than a first energy threshold currently. Whether switching to using a third speech signal captured by a third pickup unit of the wearable device to perform the voice service is determined using the first duration, where when the noise energy of the environmental noise is greater than the first energy threshold, a signal-to-noise ratio of the third speech signal is greater than a signal-to-noise ratio of the second speech signal.

Abstract: A camera module includes a substrate, a cover, and a first electronic component. A groove is defined by the substrate. The cover is arranged on the substrate and covers the groove. At least part of the first electronic component is received in the groove. An electronic device having the camera module is also provided.

Abstract: This application provides a data circulation method, apparatus, and system, and may be applied to the field of computer technologies. The data circulation method includes: A first storage device generates first data, obtains a first transfer strategy and a first use strategy of the first data, and sends the first data and the first use strategy to a second storage device when determining that the first data meets the first transfer strategy, where the first use strategy is a strategy indicating the second storage device to use the first data. In this application, the first data is sent only when it is determined that the first data meets the first transfer strategy, and the second storage device is indicated, by using the first use strategy, to use the first data.

Abstract: An enhanced field effect transistor and a fabricating method thereof are provided. The enhanced field effect transistor comprises an epitaxial structure, a metal-insulator-semiconductor/metal-oxide-semiconductor (MIS/MOS) gate structure as well as a source electrode and a drain electrode, wherein the epitaxial structure comprises at least one heterojunction in which a carrier channel is formed, a gate region of the epitaxial structure is provided with a gate groove, the groove bottom of the gate groove is located in a first semiconductor layer, a notch is located in a second semiconductor layer, and the carrier channel is separated by the gate groove; the MIS/MOS gate structure comprises a third semiconductor layer, a gate dielectric layer and a gate electrode successively stacked along a selected direction; when a forward voltage is applied to the gate electrode, electrons are reversely generated in the third semiconductor layer, and the carrier channels are electrically connected via the electrons.

Abstract: The present disclosure relates to the technical field of renewable energy, and provides a self-networking method for a module controller, and a related apparatus, to improve the self-networking efficiency for the module controller. The method includes: controlling a power converter to search for multiple initial module controllers; determining multiple candidate module controllers from the multiple initial module controllers, where the multiple candidate module controllers are obtained by filtering the multiple initial module controllers based on a communication link quality between the power converter and each of the multiple initial module controllers and a minimum quality requirement threshold; and networking the multiple candidate module controllers to obtain multiple networked module controllers.

Abstract: Provided are affinity-maturated single domain anti-PD-L1 antibodies and polypeptides, such as multispecific antibodies and chimeric antigen receptors, that include these single domain antibodies. These antibodies, including their humanized counterparts, exhibited superior activities and are suitable for use in various multispecific antibody formats. Methods of using the antibodies or polypeptides for treating and diagnosing diseases such as cancer and infectious diseases are also provided.

Abstract: The present disclosure provides a self-networking method for a module controller, and related devices, to improve the self-networking efficiency for the module controller. The self-networking method includes: obtaining a PLC link quality value between each module controller and a power converter and obtaining a PLC link quality value between the module controller and other module controller of the multiple module controllers; dividing the multiple module controllers into at least one module controller category based on the PLC link quality values, where each module controller category includes at least one candidate module controller, and the candidate module controller indicates a module controller having an actual physical connection with the power converter; and networking the candidate module controllers in the at least one module controller category by category to obtain a module controller network, where the module controller network includes multiple networked module controllers.

Abstract: A power conversion device, a method for determining a connection state of a power conversion device, a component controller, and a system are provided. The power conversion device includes: a DC input terminal and a control module. The DC input terminal is configured to be connected to a photovoltaic component through a component controller. The control module is configured to: transmit a voltage regulation instruction to the component controller; monitor an input terminal voltage of the DC input terminal connected to the component controller, where the voltage regulation instruction is used for indicating the component controller to regulate an output voltage based on the predetermined voltage change strategy; compare a measured voltage change of the input terminal voltage with a predetermined voltage change strategy; and determine a connection state between the DC input terminal and the component controller based on a comparison result.

Abstract: A control device, a computer-readable storage medium, a module-level power electronics apparatus, a new energy system, a power converter, and a control method for a power converter are provided. The power converter includes a main circuit and a controller. The main circuit is controlled by the controller. The controller regulates a voltage of at least one power supply string and determines that an input open-circuit fault occurs for an MLPE apparatus of which an input voltage changes in the at least one power supply branch.

Abstract: A thunder and lightning intercepting apparatus. In the present application, a sufficiently long target upward leader can be generated, so as to construct a thunder and lightning discharge channel; and several lightning rods are used to receive overhead lightning strikes and side lightning strikes that are from different directions, so as to intercept the overhead lightning strikes and side lightning strikes, thereby effectively attenuating lightning strike currents and reducing the intensity of a lightning-strike electromagnetic field. Therefore, the present application may be applicable to buildings that need protection against direct lightning strikes and induction lightning strikes, and is particularly applicable for use in systems such as onshore/offshore wind power, high-voltage power transmission, or high-speed rail overhead lines, thus playing a role in effectively intercepting lightning strikes from different directions.