Abstract: Provided are astersaponin I, which is a novel triterpene saponin derivative isolated and identified from a Aster koraiensis Nakai (Korean starwort) extract, and a use thereof for preventing or treating a neurodegenerative disorder.

Abstract: The invention discloses a method for synthesizing 1,7-naphthyridine derivatives, which relates to the technical field of synthesizing pharmaceutical intermediates and organic chemical intermediates, wherein the method includes: (1) 2-chloro-3-amino-pyridine being used as Compound I as a starting material, and protecting an amino group to prepare Compound II; (2) the Compound II reacting with an aldehydation reagent under alkaline conditions to obtain Compound III; (3) cyclizing the Compound III with acrylate compounds under the action of Lewis acid to prepare compound IV.

Abstract: Provided are a method and an apparatus for generating prediction information, an electronic device, and a computer readable medium. The method includes: generating, based on first user characteristic information of a target user, anonymous user information of the target user (201); sending the anonymous user information to a second processing end to enable the second processing end to generate prediction information based on the anonymous user information and second user characteristic information (202) of the target user. Data interaction and sharing are realized while ensuring data privacy, thereby improving accuracy of the prediction information.

Abstract: This application discloses a video compression method, a video decoding method, and related apparatuses. The method includes: extracting a key point from a to-be-processed video frame and a previous video frame respectively to obtain first position information and second position information; performing motion estimation based on the first position information and the second position information to obtain motion information; performing image inpainting based on the motion information and the previous video frame to obtain an initial video frame; determining a latent feature based on the to-be-processed video frame and the initial video frame; and performing video compression based on the first position information, the second position information, and the latent feature to obtain a video compressed file.

Abstract: Antigen binding proteins that interact with ASGR, ASGR-1 and/or ASGR-2 are described as well as methods of making and using such antigen binding proteins. Methods of treating and preventing cardiovascular disease by administering a pharmaceutically effective amount of ASGR, ASGR-1 and/or ASGR-2 antigen binding proteins. Methods of treating and preventing cardiovascular disease by administering a pharmaceutically effective amount of interfering RNA compositions that reduce expression of ASGR, ASGR-1 and/or ASGR-2 are described.

Abstract: A display device is provided, and the display device includes a display panel and a light adjusting portion. The light adjusting portion is stacked with the display panel, the light adjusting portion includes a first substrate, a refractive index variable material layer, an electrode structure, and a second substrate stacked with each other, and the refractive index variable material layer and the electrode structure are between the first substrate and the second substrate. The light adjusting portion further includes a plurality of signal lines, and the electrode structure and the plurality of signal lines are on the first substrate; the electrode structure includes a first electrode structure and a second electrode structure, the first electrode structure includes a plurality of first electrodes insulated from each other, the first substrate includes a plurality of regions, and first electrodes in different regions are configured to be electrically connected to different signal lines.

Abstract: Methods for determining a source of wood products, wood products, wood preservative compositions, and methods of treating wood substrates are provided. The method comprises detecting a presence of a marker in the wood product and determining the source of the wood product based on the detected presence of the marker.

Abstract: A wafer support structure disposed in a loading chamber of a semiconductor process device to support a wafer and drive the wafer to ascend or descend includes: a lifting component, a supporting component, a compressing component, and an adjusting component. The lifting component includes a lifting shaft. A mounting section is provided on the top surface of the lifting shaft. A first end of the supporting component is sleeved in a mounting hole of the mounting section. An inner peripheral wall of the mounting hole and an outer peripheral wall of the mounting section are separated by an adjustment space. A second end of the supporting component is arranged to extend along a radial direction of the lifting shaft. The compressing component is sleeved on an outer periphery of the mounting section and located in the adjustment space. The adjusting component is connected with the support component.

Abstract: The voltage conversion circuit includes a first direct-current conversion circuit connected to an electric load, a secondary transformer coil connected to the first direct-current conversion circuit, and a primary transformer coil coupled to the secondary transformer coil. The primary transformer coil is configured to generate, based on an initial voltage inputted to the primary transformer coil, an electromagnetic field and couple the electromagnetic field to the secondary transformer coil. The secondary transformer coil is configured to generate an induced current by virtue of the electromagnetic field, generate a secondary output voltage based on the induced current, and transmit the secondary output voltage to the first direct-current conversion circuit. The first direct-current conversion circuit is configured to adjust, based on a predetermined demand voltage of the electric load, the secondary output voltage to obtain a target voltage.

Abstract: Embodiments of the disclosure provide a method, apparatus, electronic device, and storage medium for controlling a microservice governance service. In the method, a first message is received from a business unit. The first message is a remote procedure call message comprising a business request. An action link table is queried by using a message feature of the first message as a query criteria. If a corresponding action link in the action link table is hit, the hit action link is determined as a target action link. The action link table is stored in a microservice governance unit and used for processing the first message to implement a microservice governance for the business unit. The target action link comprises at least two action nodes configured to implement a governance action of the microservice governance. The target action link is run to consecutively execute governance actions corresponding to the action nodes.

Abstract: In a communication control method, a maximum RB resource that can be currently allocated by a to-be-tested base station is allocated to a terminal device communicating with the to-be-tested base station. Then a MAC layer network transmission rate of the to-be-tested base station is monitored to determine whether an event of transmitting data at a maximum network transmission rate occurs. If the event of transmitting data at the maximum network transmission rate occurs on the to-be-tested base station, it indicates that a network transmission function of the to-be-tested base station is normal.

Abstract: A revolving cathode tool and method for co-rotating electrochemical machining of an inner wall of an aero-engine casing are provided, and relates to the technical field of electrochemical machining. The co-rotating electrochemical machining revolving cathode tool comprises a power supply, a cathode shaft, an anode workpiece and a flexible cathode assembly. The cathode shaft is electrically connected with a cathode of the power supply. The anode workpiece is electrically connected with an anode of the power supply. One end of the cathode shaft is connected with the flexible cathode assembly. The problem that a non-array complex structure of the inner wall of the aero-engine casing cannot be machined through counter-rotating electrochemical machining is fundamentally solved. The diameter of the cathode tool is 1/n of the diameter of the anode workpiece.

Abstract: An information processing method, a computer device, and a storage medium are provided. The method includes: acquiring communication information to be processed; extracting a key information character of the communication information to be processed by using a programmable hardware unit of a data processor; and according to the key information character, determining whether there is matching target processing operation information in a generated character mapping table, a character mapping table is generated by the programmable software unit of the data processor according to historical key information characters of historical communication information and their corresponding historical processing operation information, and the target processing operation information includes at least one micro-service processing operation; if yes, executing the micro-service processing operation included in the target processing operation information for the communication information to be processed.

Abstract: This invention discloses a rare earth energy-saving admixture and its preparation method for cement kilns, involving the field of energy saving and emission reduction technology for cement kilns. The invention, without changing or minimally changing existing hardware equipment, reduces the thermal consumption of the production system and sulfur-nitrogen and sulfur emissions by conducting a thermodynamic diagnosis and calculating the amount of rare earth energy-saving admixture to be added, thereby saving the cost of retrofitting large hardware equipment.

Abstract: The present disclosure relates to processes for preparing 6-((3s,4s)-4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl)-3-(tetrahydropyran-4-yl-7h-imidazo[1,5-a]pyrazin-8-one.

Abstract: A training method of underwater sea urchin image recognition model, and underwater sea urchin image recognition method and device are provided. The training method includes: constructing an underwater sea urchin image recognition model, acquiring an underwater sea urchin image dataset; performing MSRCR on the underwater sea urchin image dataset; processing the underwater sea urchin image dataset by a dark channel prior method; performing image fusion to obtain a fused image dataset; sharpening the fused image dataset to obtain a training image dataset; and training the underwater sea urchin image recognition model by using the training image dataset. By performing MSRCR and dark channel prior processing on the image, and then performing image fusion and sharpening based on a point sharpness weighting method, the quality of image is improved, and an accuracy of subsequent sea urchin object detection is improved.

Abstract: A circuit includes an operational amplifier and a resistor network coupled to an output of the operational amplifier. The resistor network includes a first set of resistors coupled between the output of the operational amplifier and a first node of the resistor network, wherein the resistors of the first set are electrically connected in series with each other, a second set of resistors coupled between the first node and a second node of the resistor network, wherein the resistors of the second set are electrically connected in series with each other and include a first number of resistors, a third set of resistors coupled between the second node and a third node of the resistor network, wherein the third node is coupled to a first voltage, and wherein the resistors of the third set are electrically connected in parallel with each other and include a second number of resistors, and a resistor coupled between the first node and the second node and arranged in parallel with the second set of resistors.

Abstract: An energy instrument for surgery and an ultrasonic scalpel are provided. The instrument comprises a built-in battery, a control unit, a first power-consumption circuit and a second power-consumption circuit, wherein the first power-consumption circuit is electrically connected to the control unit, and power consumption of the second power-consumption circuit in a working state is greater than power consumption of the first power-consumption circuit in a working state; when the instrument is not connected to an external power supply, the control unit and the first power-consumption circuit can be triggered to respectively connect a loop with the built-in battery; and the second power-consumption circuit stays in stop working state when the instrument is not connected to the external power supply. When the instrument is not connected to the external power supply, a small-power-consumption circuit can be triggered to run temporarily, and a large-power-consumption circuit is not connected to the built-in battery.

Abstract: The present invention relates to multi-point synchronous communication technology, providing a multi-point communication device and its application in the field of artificial intelligence. Specifically, the present invention provides a multi-point communication method and device for describing and predicting events. The device utilizes the principle of multi-point synchronous communication to achieve multi-level description of complex events, description and prediction of timing events, recall, and the device has the functions of short-term memory and long-term memory. The device and the multi-point communication method adopted realize the synchronous description of all parameters of complex events in the same operation set, and avoid the disadvantages of pre-establishing channels between multiple communication terminals and high consumption of communication resources for obtaining channels through global broadcast.

Abstract: A computer implemented method for self-learning of a control system. The method includes creating an initial knowledge base. The method learns first principles using the knowledge base. The method creates initial control commands derived from the knowledge base. The method generates constraints for the control commands. The method performs constrained reinforcement learning by executing the control commands with the constraints and observing feedback to improve the control commands. The method enriches the knowledge base based on the feedback.