Abstract: A hydrodynamic water blocking device for an underground garage includes a water blocking plate assembly and side rail assemblies, wherein the water blocking plate assembly includes a first water blocking element, one end of the first water blocking element is rotationally connected with a base, the other end of the first water blocking element is rotationally connected with one end of a second water blocking element, the first and second water blocking elements have foamed layers, the base has grooves capable of accommodating the embedded foamed layers, water inlets formed in the base communicate with the grooves, each of the side rail assemblies includes a side plate with an ascending rail including a horizontally disposed linear rail and an arc-shaped lifting rail, the second water blocking element has a walking assembly embedded in the ascending rail which is connected with a driving mechanism installed at the second water blocking element.

Abstract: A method for training an image-text retrieval model includes: obtaining a sample text including a first language text and a second language text; and obtaining a target semantic translation network by training a semantic translation network of an image-text retrieval model based on the sample text, and generating a target image-text retrieval model based on the target semantic translation network.

Abstract: A method for manufacturing an electrode having an irregular shape through a simple process while minimizing the amount of wasted electrode active material is provided. The method results in first to third coating areas formed to be spaced apart from each other on a collector, a plurality of fourth coating areas formed between the first coating area and the second coating area, and a plurality of fifth coating areas formed between the second coating area and the third coating area. The plurality of fourth coating areas and the plurality of fifth coating areas are dislocated from each other when viewed from one side in a width direction of the collector.

Abstract: The present invention relates to gastrointestinal diseases, such as non-infectious gastrointestinal diseases, including the immune mechanism of non-infectious gastrointestinal diseases in children, and the use of phosphodiesterase inhibitors and/or antiplatelet drugs in the treatment of gastrointestinal diseases such as non-infectious gastrointestinal diseases.

Abstract: An in-vehicle power system includes: a charging-discharging device configured to selectively perform both a charging function for receiving and delivering a first power signal and a discharging function for transmitting a second power signal; a battery configured to store an electrical energy transferred after DC conversion of the first power signal; and a charging-discharging controller configured to control the charging-discharging device based on a user's input or a predetermined control pattern.

Abstract: An electrostatic atomization ultrasonic aided low-damage and controllable biologic bone grinding process and device, which solve the problem of debris blockage and have good cooling effect and high operation efficiency. The device includes: a spindle, arranged rotatably; a water-catching grinding tool for grinding a biologic bone, the spindle being connected with the tool through an ultrasonic vibration mechanism, the tool achieving longitudinal and rotary motions under the drive of the spindle and mechanism; a cooling and film forming mechanism on one side of the tool and connected with an ultrasonic generator in the mechanism, a nozzle connected with a medical nano liquid storage cup arranged at the bottom, compressed gas capable of being introduced into the nozzle to perform pneumatic-ultrasonic atomization on a medical nanofluid, the nanofluid being flushed into a grinding zone in droplets for effective cooling and lubrication; and an endoscope on the other side of the tool.

Abstract: A method and a user terminal for providing contents to a user, and a method and a server for providing contents to a user terminal. The method for providing contents to a user includes: displaying, by a user terminal, a first list including a first content belonging to a first set and a second content belonging to a second set different from the first set in a first region on a chat room screen; when a user's interaction with the first content is received, displaying, by the user terminal, a first interface for requesting contents in the first set; and when a user's interaction with the first interface is received, displaying, by the user terminal, an icon indicative of the first set on the screen and a second list including at least one content belonging to the first set in the first region.

Abstract: A radar-absorbing fiber-reinforced structure includes a fiber composite discharging part. The fiber composite discharging part includes a first electrode part and a second electrode part, which are spaced apart from each other by a dielectric layer and receive different voltages. The fiber composite discharging part is configured to discharge plasma in response to a voltage difference thereby changing a reflected wave or transmitted wave of a radar incident on the radar-absorbing fiber-reinforced structure to reduce reflectivity of the radar. At least one of the first electrode part and the second electrode part include a conductive fiber having a tensile strength equal to or more than 0.5 GPa.

Abstract: Proposed is a refrigerator including a cabinet having a freezing compartment above a partition wall and a refrigerating compartment therebelow, an evaporator positioned behind the freezing compartment and generating cool air, a freezing-compartment grill assembly positioned in front of the evaporator inside the freezing compartment, a blowing fan for blowing the cool air being mounted in the freezing-compartment grill assembly, and a refrigerating-compartment grill assembly positioned behind the refrigerating compartment, wherein a refrigerating-compartment discharge flow path guiding discharging of the cool air supplied from the freezing-compartment grill assembly into the refrigerating compartment, and a refrigerating-compartment retrieval flow path guiding flowing of the cool air retrieved from the refrigerating compartment into the freezing compartment are formed together in the refrigerating-compartment grill assembly.

Abstract: The present disclosure relates to the technical field of organic photoelectric materials, in particular to an organic compound, an electronic component containing the organic compound, and an electronic device. The compound has a structure as shown by chemical formula 1?, wherein one of R1 to R4 is aa, and the other three are selected from substituents such as an alkyl, halogen and cyano; one of R5 to R8 is bb, and the other three are selected from substituents such as an alkyl, halogen and cyano; Y and Y1 are each independently cc; and L and L1 are a single bond, aryl, heteroaryl, etc. By using the organic compound of the present disclosure in an organic component, the driving voltage, luminous efficiency and lifespan of the organic component can be improved.

Abstract: A free weight training protection device is provided in the present invention, includes a rack, a transmission module, a control module and a barbell. The rack includes hanger structures which is configured to be laterally symmetrical to each other. The transmission module is configured to be laterally symmetrical to each other. Each transmission module includes a motor, sprockets, chains, pulleys and ropes. When a controller executes a fitness program, the controller operates the motor, so that the rope maintains a basic tension which is a very small tension and will not affect the hand feel of heavy training. If the barbell has an abnormal position or displacement, the controller will start a protection program to prevent the barbell from falling and move the barbell upward, so as to provide protections to users.

Abstract: A display device includes first pixels partitioned into a plurality of blocks, each of the plurality of blocks being categorized as a first block or a second block, a sensor configured to generate first sensing data for at least two of the first pixels in each of the plurality of blocks during a first period, and a sensing controller configured to generate interpolated data for the first pixels that are not sensed by the sensor by interpolating the first sensing data, for the first block, and configured to forgo interpolation of the first sensing data, for the second block. The sensor generates second sensing data for the first pixels that are not sensed by the sensor, for the second block, during a second period after the first period.

Abstract: The present disclosure provides a logo picture processing method, apparatus, device and medium, and relates to technical field of image processing, and specifically to the technical field of artificial intelligence such as deep learning and computer vision. The logo picture processing method includes: obtaining a logo picture including: a current logo graph and current text information; performing text recognition on the logo picture to obtain the current text information; searching for a picture that matches both the current logo graph and the current text information, to obtain a matched picture. The present disclosure may improve the accuracy of the matched picture of the logo picture and thereby improve the logo picture recognition accuracy.

Abstract: Provided is a content recommendation method. The content recommendation method includes: receiving, by a user terminal, text information from a user through a text input window of a chatting room, outputting, by the user terminal, a first content set including at least a part of contents related to keyword information to be mapped to the text information, outputting, by the user terminal, a first preview content for a first content included in the first content set, receiving, by the user terminal, an interaction from the user, and in response to the interaction, outputting, by the user terminal, a second preview content for a second content to replace the first preview content, wherein the second content is a content related to the keyword information.

Abstract: The present invention relates to a delivery contact lens device for delivering cargo molecules. The device comprises cargo molecules and a nanocomposite comprising hydrophilic polymer domains, hydrophobic polymer domains, aqueous pores, and charged boundary double layers, wherein at least 80% of the cargo molecule partitions in the charged boundary double layers formed at the interface of (i) aqueous pores and (ii) either hydrophobic polymer domains or hydrophilic polymer domains, the charged boundary double layers have a surface charge density of 0.005 to 0.5 Coulomb/meter2, and the aqueous pores including the cargo molecules have a low ionic strength of 0.1 to 100 mM, and osmolarity of 200-300 mM.

Abstract: An aeronautical aluminum alloy minimum-quantity-lubrication milling machining device includes a machine tool worktable and spindle connected with a machine tool power system. The spindle is connected with a tool holder that is fixed with a cutting tool. The machine tool worktable is provided with a machine tool fixture, the tool holder is connected with a minimum-quantity-lubrication mechanism, the machine tool fixture includes a fixture body that is fixedly provided with a limit block for contact with two adjacent side surfaces of a workpiece, the fixture body is provided with a plurality of clamping elements capable of pressing the workpiece against an upper surface of the fixture body, and a top of the clamping element is provided with a detection member for detecting a relative position between the clamping element and the spindle. The device can avoid interference and contact between a nozzle and the clamping element.

Abstract: An anonymous disclose and many-to-many recognition system based on blockchain and identity confirmation allowance and a method thereof are disclosed. In the system, an exposing host generates a one-time address and encrypt the disclosure data into the encrypted data, write the encrypted data into the blockchain; an identity confirmation host generates a valid flag, and an announcement host decrypts the encrypted data to generate a corresponding receipt flag, and garbles a correspondence between the decrypted disclosure data and the corresponding one-time address, to generate and write a shuffled recognition announcement to a blockchain, so that when the exposing host detects the presence of the self-owned disclosure data and one-time address in the shuffled recognition announcement, the exposing host writes a recognition flag into the blockchain. Therefore, the technical effect of improving anonymity and allowing identity confirmation can be achieved.

Abstract: An electromagnetic field generating apparatus for treating pathological cells, in particular with tumor suppression function. The ratio of static magnetic field to alternating magnetic field is in the range of 0.5-2.5, and the total intensity is in the range up to 100 mT. It provides non-invasive low toxicity and side effects, significantly inhibiting a plurality of tumors, influencing the intracellular superoxide radical content, and promoting cell autophagy. The mechanism of action of the magnetic field is on the electron spin energy levels and consequently on free radical concentration. Additional magnetic field having frequency up to 100 MHz and intensity down to microTesla range can be also used to improve the antitumor efficacy in combination with the static as well as the extremely low frequency electromagnetic field (1-300 Hz) influencing the spin hyperfine resonance. A combination method is also provided of a power-frequency electromagnetic field generating device and a platinum-based medicine.

Abstract: The catalytic cracking catalyst contains a molecular sieve and an alumina substrate material. The alumina substrate material has a crystalline phase structure of ?-alumina. Based on the volume of pores with a diameter of 2-100 nm, the pore volume of the pores with a diameter of 2-5 nm accounts for 0-10%, the pore volume of the pores with a diameter of more than 5 nm and not more than 10 nm accounts for 10-25%, and the pore volume of the pores with a diameter of more than 10 nm and not more than 100 nm accounts for 65-90%.