Abstract: A ultraviolet detector includes a substrate; a first epitaxial layer that is a heavily doped epitaxial layer and located on the substrate, a second epitaxial layer located on the first epitaxial layer, where the second epitaxial layer is a lightly doped epitaxial layer, or a double-layer or multi-layer structure composed of at least one lightly doped epitaxial layer and at least one heavily doped epitaxial layer; an ohmic contact layer located on the second epitaxial layer or formed in the second epitaxial layer, where the ohmic contact layer is a graphical heavily doped layer; and a first metal electrode layer located on the ohmic contact layer.

Abstract: The invention provides a touch display panel and a manufacturing method therefor. The touch display panel comprises a substrate; a display region disposed on the substrate; an opening region disposed on the substrate and adjacent to the display region; a plurality of touch electrodes disposed in the display region; a plurality of signal lines electrically connected to the touch electrodes; a common voltage loop surrounding the display region and having a first portion and a second portion spaced apart and adjacent to the opening region; a connection structure disposed between the first portion and the second portion; and a plurality of first dummy signal lines electrically connected to the connection structure; wherein the first portion is electrically connected to the second portion through the connection structure.

Abstract: Described herein is a computer implemented method including: retrieving historical search data including a plurality of historical search queries corresponding to historical searches for content items provided by a content delivery platform; processing the historical search data to determine a plurality of search topics, each search topic corresponding to a group of semantically similar historical search queries. The method further includes performing a first search for content items provided by the content delivery platform that are relevant to the first search topic and determining, based on results of the first search, a first content score that provides a measure of how much content provided by the content delivery platform is relevant to the first search topic and determining, based on the first content score, whether a content gap exists for the first search topic. In response determining that the content gap exists, a first content gap alert is generated.

Abstract: A semi-closed local low-vacuum laser welding device and welding method is provided. The semi-closed local low-vacuum laser welding device includes a local low-vacuum cabin, a dynamic sealing structure, a mechanical pump, and a laser welding mechanism. The local low-vacuum cabin includes a primary vacuum chamber, a secondary vacuum chamber and a tertiary vacuum chamber which are arranged in sequence, and a plate to be welded is arranged at a bottom of the primary vacuum chamber. The dynamic sealing structure is arranged at the bottom of the primary vacuum chamber, and the dynamic sealing structure is configured for connecting the primary vacuum chamber with the plate to be welded. The mechanical pump is in communication with the primary vacuum chamber and the secondary vacuum chamber. The laser welding mechanism is arranged corresponding to the local low-vacuum cabin, and is configured for welding the plate to be welded.

Abstract: The application provides a short training sequence design method and apparatus. The method includes: determining a short training sequence, where the short training sequence may be obtained based on an existing sequence, and the short training sequence with comparatively good performance may be obtained through simulation calculation, for example, by adjusting a parameter; and sending a short training field on a target channel, where the short training field is obtained by performing inverse fast Fourier transformation IFFT on the short training sequence, and a bandwidth of the target channel is greater than 160 MHz.

Abstract: The invention provides a display panel, comprising: a substrate having a peripheral area and a display area adjacent to each other, the display area provided with a plurality of pixel units; a gate driving unit provided in the peripheral area; a connection unit provided between the gate driving unit and the display area, and electrically connected to the gate driving unit and the plurality of pixel unit; and a shielding unit provided on the connection unit; wherein a projection area of the connection unit on the substrate corresponds to a projection area of the shielding unit on the substrate, and the shielding unit is electrically connected to a fixed potential.

Abstract: Disclosed is a temperature controller, a server, an air conditioning system and a temperature setting method. The temperature controller may be configured to operate in a carbon saving mode, and when operating in the carbon saving mode, the set temperature of the temperature controller is adjusted according to a green electricity index, and the green electricity index is the proportion of green electricity in a power grid to which the temperature controller is connected. When the proportion of the green electricity is high, i.e., the electric energy used is mainly from renewable energy sources, the set temperature is adjusted to produce more cold energy or heat energy for storage; and when the green electricity index decreases, the stored cold energy or heat energy can be used to meet the demand for cooling or heating, thereby reducing carbon emissions.

Abstract: A light-emitting diode substrate, a manufacturing method thereof, and a display device are disclosed. The manufacturing method of the light-emitting diode substrate includes: forming an epitaxial layer group of M light-emitting diode chips on a substrate; transferring N epitaxial layer groups on N substrates onto a transition carrier substrate, the N epitaxial layer groups on the N substrates being densely arranged on the transition carrier substrate; and transferring at least part of N*M light-emitting diode chips corresponding to the N epitaxial layer groups on the transition carrier substrate onto a driving substrate, an area of the transition carrier substrate is greater than or equal to a sum of areas of the N substrates, M is a positive integer greater than or equal to 2, and N is a positive integer greater than or equal to 2.

Abstract: A method for preparing and purifying a monomethyl auristatin E intermediate. The method has the advantages of few steps, simple operation, cheap and easily available raw materials, high safety, a simple purification method and extremely high purity of a purified product, and the yield of the method can be as high as 95%, which not only improves the safety of the production process, but also significantly improves the yield of the product, and reduces the subsequent production cost. Therefore, the method is suitable for industrial popularization.

Abstract: Techniques for creating and using error tables to track errors associated with a base table are described. A command to perform an operation on a base table stored in a network-based data system can be received and executed, causing at least one error. At least one error record corresponding to the at least one error can be inputted into an error table, which is nested with the base table. Contextual information can be added to the at least one error record.

Abstract: The present disclosure discloses a non-destructive detection method and system for Conopomorpha sinensis Bradley, which includes: placing a lychee sample to be detected on a conveyor belt; acquiring sample information of the lychee sample based on visible/near-infrared light and X-ray imaging technology; wherein the visible/near-infrared light acquires internal quality features of the lychee sample; the X-ray imaging technology acquires internal density variation features of the lychee sample; analyzing the sample information according to a preset data processing and analysis method based on PLSR and a support vector machine to obtain a classification result of the lychee sample. The present disclosure uses the visible/near-infrared transmission spectrum and the X-ray imaging feature fusion in combination with PLSR to improve the detection accuracy of the lychee sample of the testing set to 92.92%, and in combination with the support vector regression to obtain a classification accuracy of 94.

Abstract: Disclosed is an antibody that specifically recognizes and binds to folate receptor ?, also referred to as anti-folate receptor a antibody or anti-FR? antibody. Also disclosed is an antibody-drug conjugate of the anti-FR? antibody. Disclosed are uses of the anti-FR? antibody and the antibody-drug conjugate in the treatment of diseases related to FR? expression.

Abstract: An acoustic output device comprises a housing, a first loudspeaker and a second loudspeaker disposed in the housing. The first loudspeaker includes a first diaphragm. In the housing, a first front cavity and a first rear cavity are respectively disposed on a front side and a rear side of the first diaphragm, and the first front cavity and the first rear cavity are acoustically coupled with two hole portions disposed on the housing, respectively, to output a first sound wave and a second sound wave. The second loudspeaker includes a second diaphragm. In the housing, a second front cavity and a second rear cavity are respectively disposed on a front side and a rear side of the second diaphragm, and only one of the second front cavity and the second rear cavity is acoustically coupled with a hole portion disposed on the housing to output a third sound wave.

Abstract: One or more embodiments of the present disclosure provide an acoustic output device, comprising a housing; a first loudspeaker disposed in the housing, the first loudspeaker being acoustically coupled with a first hole portion and a second hole portion disposed on the housing, respectively, and the first loudspeaker being driven by a first electrical signal to output a first sound wave and a second sound wave having a phase difference through the first hole portion and the second hole portion, respectively; and a second loudspeaker disposed in the housing, the second loudspeaker being driven by a second electrical signal to output a third sound wave. In a target frequency range, the superposition of the first sound wave, the second sound wave, and the third sound wave generates a directional far-field radiation from the acoustic output device.

Abstract: The present disclosure discloses a non-destructive detection method and system for Conopomorpha sinensis Bradley, which includes: placing a lychee sample to be detected on a conveyor belt; acquiring sample information of the lychee sample based on visible/near-infrared light and X-ray imaging technology; wherein the visible/near-infrared light acquires internal quality features of the lychee sample; the X-ray imaging technology acquires internal density variation features of the lychee sample; analyzing the sample information according to a preset data processing and analysis method based on PLSR and a support vector machine to obtain a classification result of the lychee sample. The present disclosure uses the visible/near-infrared transmission spectrum and the X-ray imaging feature fusion in combination with PLSR to improve the detection accuracy of the lychee sample of the testing set to 92.92%, and in combination with the support vector regression to obtain a classification accuracy of 94.

Abstract: A medical image processing method and processing apparatus, and a computer readable storage medium. The method includes: obtaining a to-be-processed image; performing a feature extraction on the to-be-processed image to obtain a corresponding feature image; and re-determining a pixel value of each pixel in the to-be-processed image based on first information and second information of a corresponding pixel in the feature image, and processing the to-be-processed image; wherein the first information is information of a pixel adjacent to the corresponding pixel in the features image, and the second information is information of a pixel that is not adjacent to and is similar to the corresponding pixel in the features image.

Abstract: An online meeting system begins the process of connecting a user to an online meeting when a request is received from a user to start or join the online meeting. In response to the request, a pre-meeting user interface (UI) is displayed having a user interface control which, when activated, enables transmission of audio and/or video data for the online meeting, and prior to activation of the control, connection parameters are shared with an online meeting service to preheat the meeting. In response to activation of the control, transmission of audio and/or video data for the online meeting is enabled.

Abstract: A sample mounting device for direct tensile test of rock mass is provided, which includes a first positioning stage, a second positioning stage, a first support piece, a second support piece, and a screw drive mechanism. The second positioning stage is arranged above the first positioning stage and capable of moving up and down, and cushion blocks for gluing with the rock mass are coaxially and detachably arranged at opposite ends of the first positioning stage and the second positioning stage, and a rock mass mounting area is formed between the two cushion blocks. A screw of the screw drive mechanism includes a first thread segment and a second thread segment with opposite thread directions. The first support piece is connected with the first thread segment through a nut seat, and the second support piece is connected with the second thread segment through a nut seat.

Abstract: Systems and methods for redirecting cleaning chemistry flows within a multi-station semiconductor processing chamber are disclosed. In such systems, a cleaning chemistry flow, e.g., a plasma from a remote plasma generator, may be directed onto a hub of an indexer that is centrally mounted within the chamber. The hub may have features that cause the cleaning chemistry flows to be redirected in a radially outward direction. By rotating the hub and/or changing the relative elevational positions between the hub and a cleaning chemistry inlet that provides the cleaning chemistry, the cleaning chemistry may be redirected into different regions of the chamber, thereby allowing for a more thorough and complete cleaning process.

Abstract: A method and a device for controlling a low-temperature refrigeration air valve, the method includes: acquiring a current environment temperature; according to the current environment temperature, determining an initial target pressure of the current system and an initial opening degree of an air valve; acquiring an actual pressure of the current system and a target pressure of the current system; and adjusting an opening degree of the air valve according to a difference value between the target pressure of the current system and the actual pressure of the current system, wherein the air valve is disposed at a low-temperature cover. An opening degree of the air valve is adjusted according to the difference value between the target pressure of the current system and the actual pressure of the current system, to meet the refrigeration demand of the user in an ultra-low temperature environment, expanding the operation scope of refrigeration.