Abstract: A rolling bearing combined fault diagnosis method based on a multi-domain feature construction is provided, including: collecting vibration signals of rolling bearings, extracting time-domain and frequency-domain features of fault-sensitive vibration signals of the rolling bearings, and obtaining an in-domain feature set; performing an improved empirical mode decomposition on the vibration signals of the rolling bearings to obtain time-frequency features; constructing a multi-domain fault sample set based on the in-domain feature set and the time-frequency features; performing a fault mechanism analysis on the multi-domain fault sample set to obtain modulation features under each single fault; carrying out a feature engineering on the time-domain and frequency-domain features, and screening out relevant features, redundant features and irrelevant features; performing an unsupervised hierarchical clustering on test set fault samples, and then inputting the test set fault samples into a KNN model for a classifi

Abstract: Provided are an information generation method and apparatus, and an electronic device.

Abstract: A kitchen appliance has a motorized base and a food container with a rotary tool detachably mountable to the base. A safety switch is provided in the base and an actuator for actuating the safety switch is provided as part of the food container. The food container is mountable to the base with at least first and second angular orientations for setting different motor speed settings.

Abstract: Disclosed are an aroyl substituted tricyclic compound, a preparation method therefor and use thereof. Specifically, the aroyl substituted tricyclic compound of the present invention has a structure of formula (C), and has, as a BTK inhibitor, the advantages of high activity, good selectivity and low toxic and side effects.

Abstract: A kitchen appliance has a motorized base and a food container with a rotary tool detachably mountable to the base. A safety switch is provided in the base and an actuator for actuating the safety switch is provided as part of the food container. The food container is mountable to the base with at least first and second angular orientations for setting different motor speed settings.

Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive electrode active material. The positive electrode active material is a lithium cobalt oxide-based material. The negative electrode includes a negative electrode active material. The negative electrode active material is natural graphite and artificial graphite, where a mass percentage of the natural graphite is 5% to 30% based on mass of the negative electrode active material. The electrolyte includes propylene carbonate, where a mass percentage of the propylene carbonate is 1% to 11% based on mass of the electrolyte. The secondary battery, through a reasonable combination of positive and negative electrode active materials and the electrolyte system, matches the decay rate of the negative electrode with that of the positive electrode during high-voltage cycling, greatly enhancing the cycling performance of the secondary battery at high voltages.

Abstract: Disclosed is a heterocyclic lactam compound or a pharmaceutically acceptable salt, stereoisomer, solvate or prodrug thereof, as represented in formula (I), wherein the compounds have an inhibitory effect on RIPK1 and the definition of each group in the formula is detailed in the description. In addition, further disclosed are a pharmaceutical composition containing the compound, and the use thereof in the preparation of a drug for treating RIPK1-related diseases or conditions.

Abstract: Provided is a pyridino- or pyrimido-cyclic compound having an inhibitory effect on a KRAS gene mutation, or a pharmaceutically acceptable salt, a stereoisomer or a solvate thereof, wherein the structure of the compound is as shown in formula (AI) or (AII), and the definition of each group in the formula is detailed in the description. In addition, also disclosed are a pharmaceutical composition comprising the compound, and the use thereof in the preparation of a cancer drug.

Abstract: The present disclosure relates to a steel, a steel structural part, an electronic device, and a steel structural part preparation method. An example steel includes Fe with a weight percentage of ?60.67 wt %, Cr with a weight percentage of 8.01 wt % to 8.99 wt %, Ni with a weight percentage of 6 wt % to 7 wt %, Co with a weight percentage of 15.01 wt % to 15.99 wt %, Mo with a weight percentage of 5.5 wt % to 6.5 wt %, Nb with a weight percentage of ?0.5 wt %, O with a weight percentage of ?0.3 wt %, and C with a weight percentage of ?0.05 wt %.

Abstract: This application relates to lightweight steels, preparation methods thereof, and steel structural parts and electronic devices that use the lightweight steel. An example light weight steal includes: Fe, in a percentage by weight greater than or equal to 48.18 wt %; Mn, in a percentage by weight of 30.01 wt % to 35.01 wt %; Al, in a percentage by weight of 12.01 wt % to 15.01 wt %; C, in a percentage by weight of 1.0 wt % to 1.5 wt %; and O, in a percentage by weight of 0.03 wt % to 0.3 wt %. This application further provides a steel structural part, an electronic device that use the lightweight steel, and a preparation method of the lightweight steel.

Abstract: An in vitro release test (IVRT) method and system is provided for drug release testing. The IVRT method, referred to herein as adaptive perfusion, employ tangential-flow filtration (TFF), where released drug products that are smaller than a molecular weight cutoff (MWCO) of a membrane filter pass therethrough into the permeate. Unreleased drug products are retained by the pores of the filter and are recirculated to a retentate reservoir. Fresh media is provided to the retentate in order to maintain a constant total volume for the sample as well as to maintain sink conditions for the drug release. Drug concentration in the retentate and permeate are evaluated by in situ monitoring with one or more sensors and/or by periodic removal of aliquots from the respective reservoirs. In some embodiments, the membrane filter can be conditioned prior to use in order to improve the accuracy, precision, or both of the subsequent testing.

Abstract: The present disclosure provides Low Temperature NOx-Absorber (LT-NA) catalyst compositions, catalyst articles, and an emission treatment system for treating an exhaust gas, each including the LT-NA catalyst compositions. Further provided are methods for reducing a NOx level in an exhaust gas stream using the LT-NA catalyst articles. In particular, the LT-NA catalyst compositions include a first zeolite, a first palladium component, and a plurality of platinum nanoparticles. The LT-NA catalyst compositions exhibit enhanced regeneration efficiency with respect to NOx adsorption capacity, even after hydrothermal aging.

Abstract: A steel material is disclosed. The steel material includes components in the following mass percentages: 14% to 20% of nickel, 7.5% to 11% of cobalt, 4% to 7% of molybdenum, to 0.5% of rhenium and/or a rare earth element, less than or equal to 0.2% of manganese, less than or equal to 0.2% of silicon, less than or equal to 0.1% of carbon, less than or equal to of oxygen, iron, and inevitable impurities. The steel mechanical part is made of the steel material. The preparation method includes: mixing alloy powder and a binder to prepare feed particles; performing injection molding on the feed particles to obtain an injection green billet of the steel mechanical part; performing debinding and sintering on the injection green billet in sequence to obtain a sintered blank; and performing heat treatment on the sintered blank to obtain the steel mechanical part.

Abstract: A steel, a steel mechanical part, an electronic device, and a preparation method for a steel mechanical part are provided. The steel includes components of the following mass percentages: chromium: 7% to 11%, nickel: 2% to 7.5%, cobalt: 6% to 15%, molybdenum: 4% to 7%, oxygen: a trace to 0.4%, carbon: a trace to 0.35%, and iron: 50% to 80%. The steel provided in this application has relatively high mechanical strength and is not easily deformed, and therefore a risk of fracture caused when an electronic device using the steel falls off from a height is reduced.

Abstract: The present invention discloses a fully-assembled staircase system and an assembly method. The fully-assembled staircase system includes a stair slab, stair steps, stair stringers, landing slabs, steel connectors, and a stair handrail, where a main body of the stair slab is an inclined flat plate structure, lap joints are disposed at an upper end and a lower end of the stair slab LTB, an outer edge of an upper surface of the lap joint is provided with first grooves, one side of the landing slab PB is provided with second grooves, the stair stringer is an inverted T-shaped structure, a top surface of a web of the stair stringer is provided with third grooves, two flanges of the stair stringer are respectively fixedly lapped with the stair slab and the landing slab, the first groove, the third groove, and the second groove after the lapping jointly form a steel-connector groove.

Abstract: Provided are a dihydronaphthyridinone compound as shown in formula (I), which compound has a selective inhibitory effect on RIPK1, and a pharmaceutically acceptable salt, a stereoisomer, a solvate or a prodrug thereof. In addition, provided are a pharmaceutical composition containing the compound, and the use thereof in the preparation of a drug for treating RIPK1-related diseases or conditions.

Abstract: This invention relates to antimicrobial gallium compounds, and to monomers containing gallium complex moieties that can be used in oral care products and dental materials, and which can reduce or eliminate dental caries and bacterial or fungal infections associated with medical and dental devices.

Abstract: Compounds and methods for treatment of cancers such as multiple myeloma by inhibition of germinal center kinase.

Abstract: The present disclosure provides Low Temperature NOx-Absorber (LT-NA) catalyst compositions, catalyst articles, and an emission treatment system for treating an exhaust gas, each including the LT-NA catalyst compositions. Further provided are methods for reducing a NOx level in an exhaust gas stream using the LT-NA catalyst articles. In particular, the LT-NA catalyst compositions include a first zeolite, a first palladium component, and a plurality of platinum nanoparticles. The LT-NA catalyst compositions exhibit enhanced regeneration efficiency with respect to NOx adsorption capacity, even after hydrothermal aging.

Abstract: The present disclosure provides a robot, a control method for robot and a storage medium, the robot includes a memory, a processor and a computer program stored on the memory and running on the processor, and when the processor executes the computer program to obtain, material information of a working surface and determine, a target running speed of the robot according to the material information, and control the robot to run at the target running speed. The robot provided by the present disclosure controls the operating speed according to the material information of the working surface, and the robot can clean at different speeds for different materials when cleaning. If the detected material of the working surface is a material that is not easy to clean, you can set the speed to a low speed mode accordingly.