Abstract: A synthesis and an application of a phosphatase degrader are provided. The phosphatase degrader is a compound represented by formula I, or a salt thereof, or a deuterated compound thereof, or a stereoisomer thereof, or a solvate thereof, or a hydrate thereof, or a prodrug thereof. The compound can be used as a phosphatase degrader, especially as an SHP2 protein degrader, can treat malignant diseases such as tumors, and has good application prospects.

Abstract: A chip on film includes: a substrate layer; a conductor layer, arranged at a side of the substrate layer, where the conductor layer includes a plurality of connecting wires arranged along a first direction, and a gap is provided between two adjacent ones of the connecting wires; a plurality of dielectric strips, where the dielectric strip is provided in at least part of gaps, a length of the dielectric strip in a second direction is less than or equal to a length of the gap in the second direction, and the second direction intersects with the first direction; and a protective layer, arranged at a side of the conductor layer and the dielectric strip away from the substrate layer, where the dielectric strip has a larger dielectric constant than the protective layer.

Abstract: Examples of the present disclosure provide a semiconductor device, a manufacturing method thereof, and a memory system. The semiconductor device comprises: a stacking structure comprising a memory array area and a first sealing area; and at least one circle of sealing structure in the first sealing area and surrounding the memory array area, wherein the sealing structure comprises a sealing ring body penetrating through the stacking structure and at least two circles of first dummy interconnection structures connected with the sealing ring body.

Abstract: A method performs personalized transaction categorization. A transaction record is received, by a server application. In a first stage, sparse raw features are extracted from a transaction record of a transaction and converted into a transaction vector including dense features. In a second stage, the transaction vector is classified into a customized chart of accounts using the dense features to generate adapter model output. The method further includes selecting, an account identifier, corresponding to the transaction record and to an account of the customized chart of accounts, using the adapter model output, and presenting the account identifier for the transaction record.

Abstract: A method utilizes a framework for transaction categorization personalization. A transaction record is received. a baseline model is selected from a plurality of machine learning models. An account identifier, corresponding to the transaction record using the baseline model, is selected. The account identifier for the transaction record is presented.

Abstract: A preparation method for glufosinate or a salt, an enantiomer or a mixture of enantiomers in all ratios thereof, the method being especially suitable for the preparation of glufosinate, and greatly shortening steps in an existing preparation process. Especially in the preparation of L-glufosinate, the product can effectively retain the ee value of the raw materials.

Abstract: A housing for an electronic device can include an exterior titanium portion, an interior metal joined to the exterior titanium portion, the interior metal being a different metal than the exterior titanium portion, and an intermetallic compound having a thickness of less than 1 ?m disposed between the interior metal and the exterior titanium portion.

Abstract: This application discloses a virtual map switching method in a virtual game environment performed at a computer device. The method includes: obtaining a travel position of a first virtual racing car in a first virtual map in a racing game, the first virtual racing car being controlled by a first player of the racing game; and teleporting the first virtual racing car from the first virtual map to a second virtual map in the racing game when the travel position of the first virtual racing car reaches a first teleporter that connects the first virtual map to the second virtual map.

Abstract: The present disclosure describes hybrid transactional and analytical processing (HTAP) techniques. A HTAP system comprises a first processing engine configured to perform online transactional processing, a second processing engine configured to perform online analytical processing, and a storage in communication with the first processing engine and the second processing engine. The first processing engine, the second processing engine, and the storage may be modularized and configured to be decoupled from each other. The system may be configured to capture data by the first processing engine in real time, organize the data in a first format in a first part of the storage for use by the first processing engine, propagate the data to a second part of the storage subsystem, and organize the data in a second format in the second part of the storage for use by the second processing engine.

Abstract: A component residual stress testing platform based on neutron diffraction and experimental method thereof are provided, the testing platform includes a component support, a rotating mainshaft, a first thrust cylindrical roller bearing, a first cylindrical roller bearing, a bearing spacing sleeve, a second cylindrical roller bearing, a sleeve, and a first fixed baffle. The rotating mainshaft is disposed on the component support. The first thrust cylindrical roller bearing, the first cylindrical roller bearing, the bearing spacing sleeve and the second cylindrical roller bearing are sleeved on the rotating mainshaft, the sleeve is sleeved outside the first cylindrical roller bearing, the bearing spacing sleeve and the second cylindrical roller bearing, a component to be tested is sleeved on the sleeve. The testing platform can support, move, tilt and rotate the component to be tested in a process of a residual stress testing.

Abstract: The present application discloses a semiconductor device and a fabrication method thereof, and a memory and a memory system. At least one cleavage plane guide structure extending along a second direction is disposed in a first cutting region adjacent to a first device region in a first direction in the semiconductor device, the second direction intersects the first direction, and the cleavage plane guide structure includes a first portion and a second portion that extend along the second direction, and the second portion has higher cleavage plane passability than the first portion. As such, a chip can cleave according to a preset direction and portion when stealth dicing is performed on the chip.

Abstract: Examples of the present disclosure provide a wafer dicing device and a method of wafer dicing, the wafer dicing device including: a bearing platform, a first dicing sub device and a second dicing sub device, wherein the bearing platform is configured to bear the wafer to be diced, the first dicing sub device is configured to dice the wafer to be diced from a first side, and the second dicing sub device is configured to dice the wafer to be diced from a second side, the first side and the second side being opposite sides of the bearing platform in a first direction, the first direction being a direction of the thickness of the bearing platform.

Abstract: Examples of the present disclosure disclose a memory and a fabrication method thereof, a memory system, and an electronic device. The memory includes a first semiconductor structure and a second semiconductor structure that are bonded to each other; the first semiconductor structure includes a first dielectric layer and a first conductive pillar located in the first dielectric layer; the second semiconductor structure includes a second dielectric layer and a second conductive pillar located in the second dielectric layer; the second conductive pillar is connected with the first conductive pillar; the memory further includes a heat dissipation channel located in at least one of the first dielectric layer or the second dielectric layer, wherein the heat dissipation channel is disposed as being spaced apart from at least one of the first conductive pillar or the second conductive pillar.

Abstract: The disclosure provides a method for ptychography position correction based on probe weighting. The method includes: collecting diffraction light field intensity information and simultaneously initializing information functions of illumination probes and a sample to be tested and probe positions; obtaining and importing an exit wave into a propagation model to obtain a simulated diffraction light field and replacing the diffraction light field intensity information to obtain an updated diffraction light field; importing the updated diffraction light field into a backpropagation model and obtaining a diffraction exit wave and updating the information functions of the sample to be tested and the illumination probes at each scan position; and forming a probe matrix around the probe positions, updating the probe positions after calculating a correlation, and repeating the above steps to iterate until the predetermined number of iterations is completed or a predetermined condition is reached.

Abstract: A stair cleaning robot based on retractable rotational arms, including a cleaning robot body, wherein the cleaning robot body includes a machine body, a control system disposed at the top of the machine body, and a cleaning mechanism disposed at the bottom of the machine body; a first retractable rotational arm mechanism is disposed on the left side of the machine body, a second retractable rotational arm mechanism is disposed on the right side of the machine body, and the first retractable rotational arm mechanism and the second retractable rotational arm mechanism are disposed in a bilateral symmetry manner; the control system includes a control plate, a battery and a radar which are disposed on a control seat; a first reset sensor is disposed near the radar, and a second reset sensor is disposed near the control plate.

Abstract: Disclosed are a grain boundary and surface-doped rare earth zirconium-based ceramic material and a preparation method and application thereof, and part of doped elements are positioned at the grain boundary and surface of the rare earth zirconium-based ceramic material by a step-by-step doping method. The sintering activity of the rare earth zirconium-based ceramic material can be changed by adjusting the type and content of doping elements at the grain boundary and the surface, thereby enabling the control of the grain size and the grain boundary number and characteristics of the rare earth zirconium-based ceramic material, and finally optimizing the properties, such as electrical and mechanical properties, of the material. The doping method has the advantages of simple process, low cost and high universality, and can meet the requirements of different rare earth zirconium-based ceramics on doping elements, and thus is suitable for large-scale application.

Abstract: Some embodiments of the disclosure provide a cooperative positioning system and method for an unmanned underwater vehicle (UUV) cluster based on ranging and information interaction. In some examples, the cooperative positioning system includes one master UUV, multiple slave UUVs, and a cooperative positioning apparatus. In some examples, the cooperative positioning method includes following steps. A master UUV and a slave UUV perform internal clock disciplining. The master UUV periodically packages a location of the master UUV and a covariance matrix of location estimation into a cooperative positioning data packet and broadcasts the cooperative positioning data packet to slave UUVs of a cluster. The slave UUV receives the cooperative positioning data packet. A cooperative positioning apparatus of the salve UUV constructs a state and a measurement equation according to data. The cooperative positioning apparatus calculates and obtains a cooperative positioning result by using an extended Kalman filter (EKF).

Abstract: Method and an IoT system for gas gate station monitoring are provided. The method includes obtaining operation data of a gas gate station; obtaining a downstream user feature corresponding to the gas gate station and historical warning data corresponding to the gas gate station; determining, based on the downstream user feature and the historical warning data and in combination with the operation data, the associated node in a preset time period, the associated node including at least one of a gate station internal node and an external pipeline network node; obtaining monitoring data of the associated nodes, the monitoring data at least including node monitoring data of the gate station internal node and node monitoring data of the external pipeline network node; and issuing a warning notification in response to the monitoring data not satisfying a preset condition.