Abstract: The present invention provides a preparation method for a modified cathode of an MEC-AD system and application of the system with high efficiency and low energy consumption. A NiCo-BDC hydrothermal carbon composite MOF material is designed and used for modifying a cathode, which can remove COD more rapidly compared with traditional AD. A wind energy and light energy complementary power generation device is used for energy supply of the MEC-AD system, and energy consumption is further reduced by setting an intermittent power supply mode. The intermittent power supply achieves higher energy recovery efficiency while obtaining higher performance, can effectively reduce energy consumption of the MEC-AD system, is conducive to more convenient configuration of a power generation and energy supply device using clean energy, and has a good application prospect in reducing COD in organic wastewater with low energy consumption and high efficiency.

Abstract: Provided is a metal oxide thin film transistor. The metal oxide thin film transistor includes: a gate, a gate insulator layer, a metal oxide semiconductor layer, a source, a drain, and a first insulator layer that are successively stacked on a base substrate. The first insulator layer is in contact with the metal oxide semiconductor layer. The first insulator layer is an inorganic insulator layer containing silicon and oxygen, and an atomic percentage of oxygen contained in the first insulator layer is greater than 50%. An atomic percentage of oxygen contained in the metal oxide semiconductor layer is greater than 45%.

Abstract: Embodiments of the present disclosure provide a medical image processing method, system, and storage medium. The method includes determining a plurality of images of regions of interest (ROIs) based on a first image of a subject; determining a plurality of second images based on the plurality of images of the ROIs and image processing models corresponding to the plurality of images of the ROIs; and performing a fusion operation based on the plurality of second images to obtain a target image.

Abstract: A drain pan and an air conditioner are provided. The drain pan includes a plastic member and a foaming member, an air outlet near the edge of the plastic member, and a water receiving sink. An air inlet is provided in the middle part of the plastic member. The water receiving sink is arranged between the air inlet and the air outlet and surrounds the air inlet. The air outlet continuously surrounds at least part of the outer edge of the water receiving sink. Multiple supporting grilles are arranged inside the air outlet. The supporting grilles are distributed at intervals in an extension direction of the air outlet. The foaming member and the plastic member at least partially overlap with each other. The foaming member avoids the air inlet and the air outlet.

Abstract: An integrated circuit-based nano-relay, comprising: an integrated circuit system of the nano-relay constructed according to an integrated circuit module built from a combinational logic circuit. An integrated power data processing algorithm is called by means of the integrated circuit module to perform signal processing on an input power signal, and power service data is output, that is, an integrated circuit is mainly constructed by means of the combinational logic circuit, the protection logic of the nano-relay is achieved by means of a hardware circuit module, and a response speed of the relay is improved.

Abstract: A heat exchanger sealing plate for an air conditioner, an indoor unit and an air conditioner are provided. The indoor unit includes a casing, an air guiding ring, a heat exchanger, a sealing plate and a water pump. The air guiding ring is provided in the casing. The heat exchanger has a first end and a second end, and the heat exchanger is provided in the casing and surrounds the air guiding ring. The sealing plate is provided in the casing, the sealing plate has a first connecting portion, a second connecting portion and a water pump mounting portion. The first connecting portion and the second connecting portion are connected to the heat exchanger, in order for the sealing plate to close a gap between the first end and the second end of the heat exchanger. The water pump is mounted on the water pump mounting portion.

Abstract: The present application provides a method for analyzing droplets on the basis of volume distribution including obtaining a total volume V of a sample containing target molecules based on a system prepared using the sample. The system is emulsified into droplets. A droplet system is obtained when the droplets obtaining the sample executes an amplification reaction. A droplet image of the droplet system is obtained. A total number n of droplets included in the droplet system is obtained based on the droplet image. A droplet volume distribution of the droplet system is obtained based on the droplet image. A number j of negative droplets among the n droplets is counted. A quantitative analysis is performed for the target molecules according to the total volume V of the sample, the total number n of droplets, the droplet volume distribution information, and the number j of negative droplets.

Abstract: An air conditioner includes: a housing having a fan cavity and a heat exchange cavity in communication with each other; an electric control box disposed in the housing and in communication with the heat exchange cavity and the fan cavity; an electric control disposed in the electric control box; and a fan assembly disposed in the fan cavity and configured to supply air to the heat exchange cavity and dissipate heat of the electric control box. A circulating flow path is formed inside the air conditioner, to allow an airflow in the fan cavity flowing into the heat exchange cavity to at least partially flow into the electric control box and flow back to the fan cavity through the electric control box.

Abstract: A method for analyzing droplets based on images: obtaining a working dye channel image and a reference dye channel image corresponding to a droplet system (S1); separately performing a preset image processing operation on the working dye channel image and the reference dye channel image (S2); using the working dye channel image or the reference dye channel image as a target image (S3), and determining a region in which each droplet is located from within the target image (S4); and on the basis of the determined region in which each droplet is located, analyzing the droplet system (S5). The method can effective effectively improve the accuracy of droplet analysis. Further provided are a computer device and a storage medium.

Abstract: A flow cell includes a first cover; a second cover facing the first cover, and at least two spacers provided side by side between the first cover and the second cover. The first cover, the second cover, and two adjacent spacers cooperatively form a flow path, surface of the first cover near the second cover piece forms a detection surface. A first opening is provided at an end of the flow path, which can inject a first sample into the flow path. The first sample is adsorbed on the detection surface. A second opening is provided at another end of the flow path, which can inject microdroplets into the flow path. The microdroplets include a second sample. A liquid inlet and outlet device applying flow cell and a sample analysis system are further provided.

Abstract: Provided is a PCR-free library construction and sequencing method. A PCR-free high-throughput sequencing method is provided, including the following steps: obtaining a DNA fragment of target size by performing or not performing, based on a size of a nucleic acid sample, fragmentation on the nucleic acid sample; performing end repair and an A-tailing reaction; ligating an adapter containing a barcode; obtaining DNA nanoballs by performing single-strand cyclization and rolling circle replication; and loading and sequencing.

Abstract: Provided are a hooked probe, a method for ligating a nucleic acid and a method for constructing a sequencing library. The hooked probe comprises a target specific area and a hooked area ligated thereto; the target specific area comprises a sequence complementarily paired with at least part of the single chain of the nucleic acid fragment to be ligated; the hooked area comprises a sequence unpaired with the nucleic acid fragment; the end of the hooked area is a ligatable end; and the ligatable end can ligate the end of the single chain of the nucleic acid fragment.

Abstract: A random emulsification digital absolute quantitative analysis method includes: performing random emulsification processing on a system to be emulsified to obtain several isolated reaction zones or droplets; determining the total number and volume information of the various reaction zones or droplets, the presence of target molecules to be tested in the respective reaction zones or droplets, and the number of reaction zones or droplets which do not contain the target molecules by combining acquired target images comprising image regions corresponding to the amplified reaction zones or droplets, and analyzing the target images; and accurately calculating the volume information of the various reaction zones or droplets, the presence of the target molecules to be tested in the respective reaction zones or droplets, and the number of reaction zones or droplets which do not contain the target molecules, the total number of target molecules in a sample to be tested.

Abstract: The present invention discloses an aramid-based epoxy resin and a method of making same, including the steps of reacting aramid fiber powder as a raw material with a metallization reagent; grafting a plurality of ethylene oxide, propylene oxide or a mixture thereof to an activated amide group of the aramid to introduce a reactive functional group hydroxyl; and then conducting a ring-opening and closing reaction by using epichlorohydrin to obtain a liquid aramid-based epoxy resin.

Abstract: Provided are a hooked probe, a method for ligating a nucleic acid and a method for constructing a sequencing library. The hooked probe comprises a target specific area and a hooked area ligated thereto; the target specific area comprises a sequence complementarily paired with at least part of the single chain of the nucleic acid fragment to be ligated; the hooked area comprises a sequence unpaired with the nucleic acid fragment; the end of the hooked area is a ligatable end; and the ligatable end can ligate the end of the single chain of the nucleic acid fragment.

Abstract: The present invention discloses an aramid-based epoxy resin and a method of making same, including the steps of reacting aramid fiber powder as a raw material with a metallization reagent; grafting a plurality of ethylene oxide, propylene oxide or a mixture thereof to an activated amide group of the aramid to introduce a reactive functional group hydroxyl; and then conducting a ring-opening and closing reaction by using epichlorohydrin to obtain a liquid aramid-based epoxy resin.