Abstract: A selective etching solution for a 3D NAND structure sheet is provided. The etching solution includes phosphoric acid, a silane additive 1, a silane additive 2, and water. The etching solution provided by the present invention has etching selectivity on a silicon oxide film and a silicon nitride film, can selectively remove the silicon nitride film and prolong the life of the etching solution, and can adapt to etching of a laminated structure.

Abstract: Disclosed is a crystal form of an allyl-containing methylpyridopyrimidine compound, and specifically discloses a crystal form of a compound as shown in formula (I) and of a salt of the compound.

Abstract: A method and device for determining a safety risk of an elevator system, and a non-transitory computer-readable storage medium storing a computer program for implementing the method. A method for determining a safety risk of an elevator system includes determining the safety risk by generating a feature vector based at least on operational state data of the elevator system, and subsequently determining a probability of a transport object being trapped in a car of the elevator system using a neural network model. The feature vector and the probability are an input variable and an output variable of the neural network model, respectively, and the feature vector includes components corresponding to combinations selected from a plurality of state values of a first category of features. Further, the state values of the first category of features are determined based on the operational state data.

Abstract: This invention discloses a model test apparatus and method for shield post-wall grouting and tube sheet uplift under high water pressure conditions, comprising main body box, tension apparatus, shield system, grouting system, ground stress loading system, water injection system, and monitoring system. The main body box comprises the shield shell system and model soil inside. The ground stress loading system and water injection system realize the simulation of the complex underground soil and muddy water environment by applying stress and water pressure to the model soil inside the main box. While the tension apparatus makes the shield shell moving forward, the grouting system injects slurry into the gap between the shield shell and the tube sheet. The integrated model test of visual shield grouting and tube sheet uplift, the real-time multi-physical field responses, and the longitudinal deformation mechanism have been realized and revealed under high water pressure conditions.

Abstract: A display substrate, a display device, and a method for driving a display device are provided. The display substrate includes a substrate, a drive circuit layer formed on the substrate, a light-emitting unit on a side of the drive circuit layer away from the substrate, and a light-transmitting layer on a side of the light-emitting unit away from the substrate; the light-emitting unit comprises a first electrode layer, a light-emitting layer and a second electrode layer which are laminated in sequence, the second electrode layer comprises a plurality of second electrode patterns which are arranged independently and insulated from each other, and at least part of the second electrode patterns are connected to different common voltage terminals. According to the embodiments of the present disclosure, the proportion of light of different colors in the light-emitting units located at different positions is controlled, which helps to improve the display effect.

Abstract: A refrigeration module, comprising: a module body, in which an installation space is defined; and a refrigeration system disposed in the installation space for use in generating cold, wherein a cold supply port is provided on the module body, the cold supply port is configured to be detachably connected to an external pipeline, and the cold generated by the refrigeration system is supplied to the external pipeline by the cold supply port. Further provided by the present invention is a refrigerator that has the refrigeration module. By means of separating the refrigeration module and a storage portion, the storage portion does not need to give way to the refrigeration system, and the internal volume of the refrigerator may be greatly increased; and the refrigeration module may be freely matched with one or more of the same or different storage portions as needed.

Abstract: A solid state drive (SSD) includes an NAND memory and an SSD controller. The SSD controller includes an interface coupled to a host machine, a nonvolatile memory controller coupled to the interface, and a processor coupled to the nonvolatile memory controller. The SSD controller is configured to: receive, via the interface, a write command from the host machine; process, by the nonvolatile memory controller, the write command; transmit, from the nonvolatile memory controller to the processor, a system message; process, by the processor according to Zoned Namespaces (ZNS) protocol, the system message; obtain, by the nonvolatile memory controller via the interface, host data for storage from the host machine; and write the host data to the NAND memory based on a result of processing the system message. Processing the system message by the processor and obtaining the host data by the nonvolatile memory controller are executed in parallel.

Abstract: In the method, coded information of a coding unit (CU) in a picture of a video is received from a coded video bitstream. The CU is partitioned into a first partition and a second partition based on a geometric partition mode (GPM). The first partition and the second partition are rectangular partitions that are adjacent to each other and divided by a straight partition line. A first intra prediction mode for the first partition of the CU and a second intra prediction mode for the second partition of the CU are determined. The first intra prediction mode is different from the second intra prediction mode. The first partition of the CU is reconstructed based on the first intra prediction mode and the second partition of the CU is reconstructed based on the second intra prediction mode.

Abstract: A pipette-tip connecting device has a base, a first positioning mechanism, a second positioning mechanism, a connecting seat, a pipette-fixing seat, and a tilt actuator. The first positioning mechanism extends along a first direction. The second positioning mechanism is linked to the first slider and extending upward and downward along a second direction. The connecting seat is mounted on the second slider such that positions of the connecting seat along the first direction and the second direction are controlled by the first positioning mechanism and the second positioning mechanism respectively. The pipette-fixing seat is mounted on the connecting seat and is pivotal relative to the connecting seat. The pipette-fixing seat has a pipette-tip connector which moves in the first direction and the second direction when the pipette-fixing seat pivots. The tilt actuator controls a relative angle between the pipette-fixing seat and the connecting seat.

Abstract: A back plate configured to press a mask assembly. The mask assembly includes a glass substrate and a mask that are stacked on the glass substrate. The back plate covers a surface of the glass substrate to press the glass substrate, thereby attaching the glass substrate to the mask. The back plate includes a bottom plate and multiple protrusions, the multiple protrusions include multiple bottom plate protrusions disposed on a side of the bottom plate facing the glass substrate. The multiple bottom plate protrusions are arranged in an array. Orthographic projections of the bottom plate protrusions on a plane of the mask fall within the mask. A distance between the projections of the bottom plate protrusions disposed adjacent to an edge of the mask and the edge of the mask is greater than or equal to a preset distance.

Abstract: Implementations of the present invention provide a digital twin intelligent edge terminal and an operation method therefor pertaining to the field of digital twin terminals. The terminal comprises: a state perception module physically connected to a cloud digital twin system and single or multiple application objects and sensors via various data interfaces; a decision reception and execution module configured to perform the dispatch of decision information according to whether a control system for controlling application objects has an instruction interface and a transmission protocol; a human-computer interaction module; a digital twin local control module interacting with the cloud digital twin system or collaborating with the state perception module, the decision reception and execution module, and the human-computer interaction module in different working modes; and a functional module manager implementing information interaction between the modules.

Abstract: A method including forming a lead halide precursor ink comprising a group 1 metal halide, a lead halide, an ionic liquid, and a solvent; depositing the lead halide precursor ink onto a substrate; drying the lead halide precursor ink to form a lead halide film; and annealing the lead halide film.

Abstract: A semiconductor memory device includes an alternating stack of insulating layers and electrically conductive layers, a memory opening vertically extending through the alternating stack, and a memory opening fill structure located in the memory opening and including a vertical stack of discrete ferroelectric material portions and a vertical semiconductor channel. In one embodiment, the discrete ferroelectric material portions include a ferroelectric alloy material of a first dielectric metal oxide material and a second dielectric metal oxide material. In another embodiment, each of the discrete ferroelectric material portions is oxygen-deficient.

Abstract: The present application belongs to the field of medicine, and in particular relates to a crystal of a diarylthiohydantoin compound, a preparation method therefor, and use thereof in the preparation of medicaments for treating related diseases which are androgen-mediated.

Abstract: The provided is a personalized target selection method for a non-invasive neuromodulation technology, including: preprocessing functional magnetic resonance imaging (fMRI) data from MRI scan data of a current patient to acquire fMRI brain image feature data; inputting the fMRI brain image feature data into a pre-trained inter-subtype classification model to acquire a subtype label of the current patient and all feature voxels of the subtype label; preprocessing T1-weighted MRI data of structural magnetic resonance imaging (sMRI) data from the MRI scan data of the current patient to acquire a skull outline and a transformation matrix between the sMRI and fMRI data; performing coordinate transformation on the feature voxels, calculating a distance between each voxel on the skull outline and each feature voxel, marking response feature voxels, and counting a number of response feature voxels; and sorting the number of response feature voxels.

Abstract: A UDM sends a protection request message to a first AUSF; and the UDM receives a response message that is of the protection request message and that is sent by the first AUSF, and sends terminal parameters update information via an AMF corresponding to a first serving network, where the protection request message requests to protect the terminal parameters update information, and the protection request message carries the terminal parameters update information and information about the first serving network.

Abstract: A common CORESET determining method, an apparatus and a non-transitory computer-readable storage medium are provided. The method includes: receiving configuration information, wherein the configuration information indicates where a physical resource block occupied by a first common control resource set is located in a first downlink bandwidth part; determining a frequency domain resource of the first common control resource set based on a frequency domain resource of the first downlink bandwidth part and the physical resource block occupied by the first common control resource set within the first downlink bandwidth part; and monitoring a physical downlink control channel in the first common control resource set before the first downlink bandwidth part configured by a SIB1 takes effect to obtain scheduling control information. According to this application, complexity of determining a frequency domain location of the first control resource set can be reduced.

Abstract: A method of fabricating a device includes providing a fin extending from a substrate, where the fin includes an epitaxial layer stack having a plurality of semiconductor channel layers interposed by a plurality of dummy layers. In some embodiments, the method further includes removing a portion of the epitaxial layer stack within a source/drain region of the semiconductor device to form a trench in the source/drain region that exposes lateral surfaces of the plurality of semiconductor channel layers and the plurality of dummy layers. After forming the trench, in some examples, the method further includes performing a dummy layer recess process to laterally etch ends of the plurality of dummy layers to form first recesses along a sidewall of the trench. In some embodiments, the method further includes conformally forming a cap layer along the exposed lateral surfaces of the plurality of semiconductor channel layers and within the first recesses.

Abstract: The present application relates to the field of medicine, and relates to crystals of quinoline derivatives, and in particular, to crystals of a quinoline derivative anhydride and a solvate, as well as a method for preparing the crystals, pharmaceutical compositions containing the crystals, and a use thereof in the field of medicine. The present application further provides a preparation method therefor, which has a high yield, has mild crystallization conditions, is suitable for industrial production, and may better meet the needs of the pharmaceutical industry.

Abstract: In a method for improving converter and compiler operator granularity, a processor extracts an operator granularity from an artificial intelligence framework and an original model. A processor receives device characteristics from a target device. A processor outputs a converter granularity level to a converter based on the operator granularity and the device characteristics. A processor outputs a compiler granularity level to a compiler based on the operator granularity and the device characteristics.