Abstract: An in-situ evaluation method and system for loess collapsibility based on non-destructive time-domain reflection technology, includes: calculating loess dry density and mass water content; considering loess dry density, mass water content and basic physical property indicators, and evaluating loess collapsibility in situ through mathematical models. The loess collapsibility in-situ evaluation method based on the non-destructive time domain reflectometry technology of the present invention can not only realize whether the loess has collapsibility, but also has the potential to distinguish strong, medium and slight collapsibility.

Abstract: A photonic integrated circuit (PIC) includes a first microresonator that generates a two-mode squeezed vacuum using spontaneous four-wave mixing. Specifically, the first microresonator uses a nonlinear optical medium to convert two pump photons into a pair of entangled signal and idler photons. Due to imperfect conversion efficiency, some of the pump light may co-propagate with the signal light and idler light. To remove this “unconverted” pump light, the PIC includes a second microresonator that is tuned to resonate with only the pump light. The second microresonator is located after the first microresonator and couples the unconverted pump light into a waveguide that guide the light off the PIC. Thus, the second microresonator acts as a notch filter. Integrating this pump filter onto the PIC adds negligibly to the path length of the squeezed light, and therefore saves the propagation losses incurred when using a much larger off-chip filter.

Abstract: The present application provides an in-situ polymerized solid-state battery with a multilayer electrolyte, which comprises an oxidation-resistant polymer layer, which is formed in-situ on the positive electrode, and also comprises a reduction-resistant polymer layer, which is formed in-situ on the negative electrode. The oxidation-resistant polymer through chemical reaction is preset on the positive electrode during the mixing process. And a monomer or initiator that can form reduction-resistant polymer through chemical reaction is preset on the negative electrode plate during the mixing process.

Abstract: The present invention discloses a multi-energy complementary system for a co-associated abandoned mine and a use method. The multi-energy complementary system for a co-associated abandoned mine includes a mining mechanism, a grouting mechanism and an energy mechanism. In the present invention, the mining of coal and uranium resources is realized through the mining mechanism, the subsidence and seepage reduction of the stratum is realized through the grouting mechanism, and the effective utilization of waste resources is realized through the energy mechanism. Finally, with the efficient cooperation of the three mechanisms, safe and efficient development and utilization of co-associated resources in the full life cycle are realized, and the purposes of green and efficient mining of coal and uranium resources and secondary development of a coal seam goaf are achieved, thereby facilitating the realization of dual-carbon goals and the development of low-carbon green energy.

Abstract: The present disclosure discloses a method for synthesizing a diaza-bridged compound and a diaza-bridged compound, belonging to the field of organic synthesis. The present disclosure includes the following reaction: in the formula, R is aryl, substituted aryl, alkyl or haloalkyl, Ra is any one of H, 2-nitrobenzenesulfonyl, 4-nitrobenzenesulfonyl or 2,4-dinitrobenzenesulfonyl, n=1 or 2. Since compound 2 and NH3 are used as raw materials, the present disclosure can not only effectively shorten the process flow and save process costs, but also improve the reaction yield to a certain extent. The present disclosure also provides a diaza-bridged compound, where the structural formula thereof is in the formula, Ra is any one of 2-nitrobenzenesulfonyl, 4-nitrobenzenesulfonyl or 2,4-dinitrobenzenesulfonyl.

Abstract: The present invention belongs to the bioengineering field, and relates to a method for fermentation production of L-theanine by using an Escherichia coli genetically engineered bacterium. The engineered bacterium is obtained by serving a strain as an original strain, wherein the strain is obtained after performing a single copy of T7RNAP, a dual copy of gmas, xylR knockout, and sucCD knockout on an Escherichia coli W3110 genome, and by integrating genes xfp, pta, acs, gltA, and ppc, and knocking out ackA on the genome. The present invention has a high yield, and stable production performance; after 20-25 h, L-theanine has a titer of 75-80 g/L, and the yield is up to 52-55%. The fermentation broth is purified by membrane separation in combination with a cation-anion resin series technique. Moreover, the one-step crystallization yield is 72.3% and the L-theanine final product has a purity of 99%.

Abstract: The present disclosure is applicable to the technical field of metering and distributing of an adhesive dispensing machine, and provides a machine learning-based flexible intelligent adhesive dispensing method.

Abstract: Disclosed are a carbon nanotube (CNT)-based three-dimensional ordered macroporous (3DOM) carbon material and a preparation method thereof.

Abstract: An intelligent tire monitoring system includes a tire body, a sheet-shaped conductive polymer sensor, a micro control unit, an RF unit, a computer, and an RF circuit. The sheet-shaped conductive polymer sensor is affixed to an inner liner layer at a middle portion of a tire crown. One end of the sheet-shaped conductive polymer sensor is connected to the micro control unit through the RF unit, and the other end of the sheet-shaped conductive polymer sensor is connected to the computer through the RF circuit. The computer includes a power supply module, a communication port, a display screen, an audible alarm, a press-key input module, and a processor. The state of the tire is comprehensively determined by matching or combining a strain amplitude of the tire crown and an operating temperature with a fitting function.

Abstract: A display method for a display assembly, a display system, and a display device of a vehicle column A, and a storage medium. According to the display method, by means of a conversion relationship between a coordinate system of a target feature model and a camera coordinate system of a driver monitoring assembly and a conversion relationship between the coordinate system of the target feature model and a world coordinate system, a conversion relationship between the camera coordinate system and the world coordinate system is obtained, a coordinate of the display assembly in the world coordinate system can be converted into a coordinate in the camera coordinate system, and thus whether a driver watches the display assembly can be simply determined.

Abstract: A resource allocation method for coexistence of multiple line topological industrial wireless networks is provided. It pertains to the coexistence problem of multiple TDMA-based line topological industrial wireless networks, including three parts: lower bound analysis of scheduling delay, allocation algorithm of inter-network resources and allocation algorithm of intra-network resources. The method uses overall scheduling delay and resource utilization ratio as measurement indexes when analyzing the lower bound of delay and designing resource allocation algorithms, and selects a best node combination in each time slot to occupy as many channel resources as possible to improve the resource utilization ratio and reduce the overall scheduling delay.

Abstract: Provided is a method for treating diseases related to cardiac tissue damage or cardiac insufficiency in a subject. The method includes the step of locally applying a mesenchymal stem cell sheet such as an umbilical cord mesenchymal stem cell sheet to the heart of the subject. Also provided are related use and compositions of the mesenchymal stem cell sheet.

Abstract: Provided are a material presentation method an electronic device and a storage medium. The material presentation method includes steps described below. A data update request is received from a client. In response to the data update request carrying a splash presentation identifier of a splash presentation material, a news feed presentation material corresponding to the splash presentation identifier is acquired. The news feed presentation material is inserted into a preset presentation position of a news feed list page.

Abstract: A method of forming an array substrate, the array substrate and a display device are provided. The method of forming the array substrate includes: in a case that a display unit is formed on one of two opposite surfaces of a base substrate and a driving circuit is formed on the other of the two opposite surfaces of the base substrate, performing a roughening treatment on edge regions of the two opposite surfaces of the base substrate and a side surface of the base substrate connecting the edge regions of the two opposite surfaces, to form a roughened region; and forming, at the roughened region, a metal wiring connecting a signal input terminal of the display unit and a signal output terminal of the driving circuit.

Abstract: Provided are a material presentation method and apparatus, a terminal and a storage medium. The material presentation method includes steps described below. A to-be-presented splash presentation material is received. A splash presentation image of the to-be-presented splash presentation material is magnified, and the magnified splash presentation image is presented. In response to the presented magnified splash presentation image satisfying a minifying condition, the presented magnified splash presentation image is minified.

Abstract: The present disclosure provides a data processing method. The method includes the steps of constructing a keyword library of an obtained comment corpus associated with a target object, the keyword library comprising a plurality of keywords; extracting a plurality of partial comment corpora from the comment corpus, each partial comment corpus of the plurality of partial comment corpora comprising a plurality of comment words including at least one of the plurality of keywords in the keyword library; combining the plurality of partial comment corpora to produce a candidate corpus; and performing a topic clustering process on the candidate corpus of each keyword to obtain a subject term for the target object.

Abstract: The present invention belongs to the bioengineering field, and relates to a method for fermentation production of L-theanine by using an Escherichia coli genetically engineered bacterium. The engineered bacterium is obtained by serving a strain as an original strain, wherein the strain is obtained after performing a single copy of T7RNAP, a dual copy of gmas, xylR knockout, and sucCD knockout on an Escherichia coli W3110 genome, and by integrating genes xfp, pta, acs, gltA, and ppc, and knocking out ackA on the genome. The present invention has a high yield, and stable production performance; after 20-25 h, L-theanine has a titer of 75-80 g/L, and the yield is up to 52-55%. The fermentation broth is purified by membrane separation in combination with a cation-anion resin series technique. Moreover, the one-step crystallization yield is 72.3% and the L-theanine final product has a purity of 99%.

Abstract: A method for cryopreserving cells, a cell cryopreservation solution and a composition are provided. The method includes: providing a suspension for the cells to be cryopreserved in a cell cryopreservation solution; and cryopreserving the suspension. The cell cryopreservation solution includes dimethyl sulfoxide, plasma, citric acid, sodium citrate, potassium dihydrogen phosphate or sodium dihydrogen phosphate, glucose and adenine.

Abstract: Provided are an electronic device for a network control terminal and a network node, and a method for the electronic device. The electronic device for a network control terminal comprises processing circuitry configured to set a first condition concerning a beam-forming capacity of a network node for determining the network node capable of serving as a relay node, and to generate control signaling of indication information comprising the first condition for indicating the network node served by the network control terminal.

Abstract: A robot (100) working area map construction method and apparatus, a robot (100), and a medium, wherein the robot (100) working area map construction method comprises scanning in real time an obstacle in a driving path and recording position parameters of the obstacle (S102); obtaining in real time image information of the obstacle in the driving path (S104); according to the position parameters and the image information, determining working area—based reference information of the obstacle (S106); and dividing the working area into a plurality of sub-areas on the basis of the reference information (S108). By means of radar scanning and image capture by a camera for double insurance, the robot (100) working area map construction method significantly improves recognition accuracy for room doors and avoids room division confusion caused by the incorrect recognition of doors.