Abstract: The present invention discloses methods and systems for detecting the tightness state of a bolt or nut under inspection. A sensor is mounted on the bolt or nut. Another sensor is mounted on a structure. A first angle of the bolt or nut is calculated. A second angle of the structure is calculated. The initial angle difference between the first and second angles is calculated when the bolt or nut is tight. A subsequent angle difference between the first and second angles is calculated during the inspection. Using the initial angle difference and the subsequent angle difference, the screwed-out angle of the bolt or nut is obtained. Then, the tightness state of the bolt or nut is determined based on the screwed-out angle.

Abstract: A method for quickly measuring a rock joint of a rock mass based on huge point cloud data includes performing computation by introducing parallel computing to obtain a point curvature matrix and a point normal vector matrix corresponding to a vectorized point cloud coordinate data matrix; sequentially performing global parameter vectorization, normalization, and data screening on the vectorized point cloud coordinate data matrix, the point curvature matrix and the point normal vector matrix to obtain a training point cloud dataset; training an intelligent rock joint identification model through the training point cloud dataset to obtain a well-trained intelligent rock joint identification model; performing rock joint identification on a to-be-measured point cloud dataset through the well-trained intelligent rock joint identification model to obtain a plurality of rock joint sets; and computing an occurrence of each single rock joint in each of the rock joint sets.

Abstract: Provided are salts of a compound of formula (I) having an ATX inhibitory activity. The salts comprises inorganic acid salts or organic acid salts, and solid forms of the salts, such as crystal forms. The salts of the compound of formula (I) and their crystal forms according to the present disclosure have a good solubility, stability and hygroscopicity, and are more suitable for medicinal use. Moreover, their preparation methods are simple and convenient, and are suitable for large-scale production.

Abstract: Provided are methods of treating malaria comprising administration of compounds of Formula (I) or a pharmaceutically acceptable salt thereof, to a subject in need thereof, wherein the variables are as defined herein. Also provided are uses of the compounds of Formula (I), as defined herein, for treating a Plasmodium infection, and for treating malaria. Also provided are methods of treatment further comprising administration of one or more additional anti-malarial compounds.

Abstract: This disclosure relates to a polishing composition that includes an abrasive, at least two pH adjusters, a barrier film removal rate enhancer, a low-k removal rate inhibitor; and an azole-containing corrosion inhibitor. This disclosure also features a method of using the polishing composition to polish a substrate containing copper and silicon oxide.

Abstract: A substituted triazinylmethylcycloalkylcarboxylic acid derivative having a structure as shown in formula (I). In addition, further disclosed are a pharmaceutically acceptable salt, a stereoisomer, a pharmaceutical composition and the use of the derivative. The compound has significant P2X3 inhibitory activity and selectivity, and is high in application value.

Abstract: A communication method is disclosed. According to the method, a third apparatus receives a request from a fourth apparatus; and the third apparatus sends, in response to the request from the fourth apparatus, a first dataset to the fourth apparatus. The first dataset is obtained by the third apparatus based on second update parameter information of a first neural network, and comprises a set of a plurality of inputs and outputs of the first neural network, each of the outputs being a policy related information. The first dataset is usable for the fourth apparatus to train a neural network.

Abstract: This disclosure relates to a method that includes applying a polishing composition to a surface of a substrate; bringing a pad into contact with the surface of the substrate and moving the pad in relation to the substrate to create a polished substrate; treating the polished substrate with a rinse solvent; flowing a vapor over a meniscus formed at an interface between air and the rinse solvent on the polished substrate. The vapor includes a first component containing a water miscible organic solvent, a second component containing a cleaning agent, and a third component containing an inert gas.

Abstract: An in-oil autonomous operation detection robot of a storage tank bottom plate and an autonomous operation detection method are provided. The in-oil autonomous operation detection robot of the storage tank bottom plate includes a motion module, a positioning and attitude recognition module, an obstacle avoidance module, a detection module and a control module, wherein the motion module is configured to adjust and control a motion direction, a speed and an attitude of the robot under the control of the control module; the positioning and attitude recognition module is configured to recognize a position and an attitude of the robot under the control of the control module; the obstacle avoidance module is configured to avoid obstacles under the control of the control module; and the detection module is configured to detect corrosions of the bottom plate.

Abstract: Disclosed are compounds of Formula I (shown below), methods of using the compounds for inhibiting KRAS activity and pharmaceutical compositions comprising such compounds. The compounds are useful in treating, preventing or ameliorating diseases or disorders associated with KRAS activity such as cancer.

Abstract: Example cloud game processing methods are provided. In one example method, a cloud game server performs rendering on a background in a game scene of the cloud game to obtain a video stream of a background image of the cloud game. The cloud game server crops an image in the video stream of the background image of the cloud game to obtain a target video stream of the cloud game. After performing compression and encoding processing on the target video stream, the cloud game server sends the processed target video stream to the terminal device. The terminal device locally generates at least one of the game character or an item of the game character. The at least one of the game character or the item of the game character is superimposed on the background image in the processed target video stream.

Abstract: A device and method for leakage detecting of a crude oil tank floor are provided. The device comprises a control system, a detection robot and a plurality of acoustic signal receivers. The acoustic signal receivers and the control system are all arranged outside a crude oil tank. The acoustic signal receivers are all connected with the control system. When the crude oil tank is detected, the detection robot is arranged in the crude oil tank. The detection robot comprises a moving mechanism, a positioning sonar and an array leakage detection sensor. The positioning sonar and the array leakage detection sensor are both arranged on the moving mechanism. The acoustic signal receivers are used for receiving sonar signals sent by the positioning sonar. The array leakage detection sensor is used for detecting a leakage point of the crude oil tank.

Abstract: A polishing composition includes at least one abrasive, at least one organic acid, at least one anionic surfactant comprising at least a phosphate, at least one phosphonic acid compound having a molecular weight below 500 g/mol, at least one azole containing compound, at least one alkylamine compound having a 6-24 carbon alkyl chain, and an aqueous solvent, and optionally, a pH adjuster.

Abstract: A method for preparing lithium sulfide by using metallic lithium includes steps A-D. The step A includes placing 0.05-0.1 kg of the metallic lithium and a first sulfur powder into a sealed container under an inert condition according to a mass ratio of the metallic lithium to the first sulfur powder being 1:0.8-1:1. The step B includes placing the sealed container into a vacuum oven at 250-300° C. and holding for 2-3 h, then adding second first sulfur powder and heating at 250-300° C. for 2-3 h, and finally adding first sulfur powder and heating at 250-300° C. for 2-3 h to obtain a crude lithium sulfide product. The step C includes ball-milling on the crude lithium sulfide product to obtain a ball-milled lithium sulfide. The step D includes adding the ball-milled lithium sulfide into a mixed solution of isopropanol and xylene to obtain a lithium sulfide slurry.

Abstract: A decision-making method for an agent action and a related device are provided and are used in the field of communication technologies. The method includes: a first agent processes first state information obtained from an environment through a first model, to obtain a first cooperation message; the first agent sends the first cooperation message to at least one second agent; the first agent receives second cooperation message sent by the at least one second agent; the first agent processes the first cooperation message and the second cooperation message through a second model, to obtain a first cooperation action performed by the first agent, where the second cooperation message is sent by the at least one second agent.

Abstract: A Wi-Fi network includes one or more Wi-Fi access points each comprising circuitry configured to: provide a plurality of virtual networks including a home network and a work network, each of the plurality of virtual networks being segmented in terms of visibility, connect to a corporate network via one or more secure tunnels, connect to one or more user devices, and route traffic for the one or more user devices based on which particular virtual network the one or more user devices are connected on.

Abstract: A method for preparing high-purity lithium sulfide by using industrial-grade butyllithium includes the following steps: step A: under an inert gas condition, thoroughly mixing 1.5-2.5 g of lithium chloride, 0.5 L of an industrial-grade n-butyllithium solution (2.5 mol/L) and 1.5-2.5 L of n-hexane to obtain a mixed solution, and charging the mixed solution into a sealed container; step B: under the sealed condition, firstly introducing H2S gas into a gas-washing bottle through a submerged pipe at a rate of 10.5 L/h, then introducing into the mixed solution through the submerged pipe, controlling the reaction temperature at 25-40° C., and continuously stirring for reaction for 4-6 h to obtain a reaction slurry; and step C: under an inert gas condition, filtering the reaction slurry with a G3 sand core funnel to obtain a crude lithium sulfide solid wet material.

Abstract: Disclosed are compounds of Formula (I), methods of using the compounds for inhibiting KRAS activity and pharmaceutical compositions comprising such compounds. The compounds are useful in treating, preventing or ameliorating diseases or disorders associated with KRAS activity such as cancer.

Abstract: An acoustic emission internal testing method and device for detecting corrosion of a large liquid-carrying storage tank bottom plate. An acoustic emission sensor is configured to collect an acoustic emission signal generated by an underwater acoustic transducer, and to calculate an attenuation coefficient of the acoustic emission signal when propagated by the underwater acoustic transducer through a medium, thereby determining a step distance of the storage tank robot. After the storage tank robot travels every step distance on a storage tank bottom plate, the acoustic emission sensor collects an acoustic emission signal generated by the storage tank bottom plate. Finally, the position where the storage tank bottom plate is corroded and the corrosion degree are determined according to intensity characteristic parameters and activity characteristic parameters of the acoustic emission signal collected after the storage tank robot travels every step distance.

Abstract: Embodiments provide a radio frequency apparatus including a radome, an absorber, and a radio frequency circuit board that may be used for millimeter wave radar of an intelligent automobile to reduce high-frequency radiation interference from a radio frequency chip and an antenna feeder.