Abstract: The present invention relates to a crystal form A of a compound of formula (I), and a preparation method therefor and the use thereof. The crystal form A has good properties in terms of physical and chemical stability, water solubility, bioavailability and processing adaptability.

Abstract: Technology is disclosed herein for a system, devices, and methods for microwave focusing in various implementations. In an implementation, a computing device identifies a location for receiving focused microwave emissions from an array of antennas. The computing device determines an optimal antenna configuration for illuminating the location by the microwave emissions based at least on a configuration of the array and causes the antennas to illuminate the location according to the optimal antenna configuration. In an implementation, the computing device determines the optimal antenna configuration for illuminating the location based on a spatial distribution of material properties of a volume which includes the location. In an implementation, the spatial distribution is based on imaging data of the volume. In various implementations, the configuration of the array includes a spherical or cylindrical distribution of antenna positions.

Abstract: A negative active particle and a preparation method therefor, a negative sheet, and a cell are provided. Embodiments of the disclosure provide a negative active particle. The negative active particle has multiple pores, and an aspect ratio ? of each of the multiple pores satisfies 1???8.

Abstract: A preparation method of a micro-nanofluidic model of triple-medium carbonate reservoir includes the following steps: obtaining a cave structure, a fracture structure and a pore structure of a carbonate rock, and preparing a first mask, a second mask and a third mask respectively; forming a photoresist layer on a glass substrate, and subjecting the photoresist layer to an exposure treatment and an etching treatment through the first mask, the second mask and the third mask sequentially, and then subjecting to a washing treatment, to obtain a first intermediate model; fitting the etched side of the first intermediate model with a glass cover, and subjecting to a bonding treatment, to obtain a second intermediate model; introducing a first solution, a second solution and a third solution into the second intermediate model sequentially to form a calcium carbonate nanocrystalline layer and to obtain the model.

Abstract: A preparation method for silicon dioxide, controls temperature, pH and stirring rate in steps of preparing a silicon dioxide solution to exert an influence on the stability of a silicon dioxide solution gel system. The prepared silicon dioxide solution has a low viscosity, and finally prepared silicon dioxide has a high dispersity. The prepared silicon dioxide solution with a low viscosity will not adhere to a reaction tank, thus being easy to discharge. When the silicon dioxide prepared by the preparation method is used for preparing a toothpaste, since the silicon dioxide shows high dispersity due to its large BET specific area, low oil absorption and low viscosity, paste of the prepared toothpaste is not prone to caking and can be rinsed off easily. The paste of the prepared toothpaste shows high stability in a follow-up test of the viscosity stability of the toothpaste, thus being suitable for long-term storage.

Abstract: An ultrasonic transducer device includes a first electrode, an insulating layer, an oscillating membrane, a second electrode, and a third electrode. The insulating layer is disposed on the first electrode. The oscillating membrane is disposed over the insulating layer. A cavity is between the oscillating membrane and the insulating layer. The second electrode is disposed on the oscillating membrane. The third electrode is disposed in the cavity and has a plurality of first electrode openings overlapping the second electrode. The second electrode and the third electrode are each located at different sides of the oscillating membrane.

Abstract: The present invention provides a free-state PLX5622 crystal form and a preparation method therefor, and in particular, provides crystal forms A, B, C, D, E and F of a compound of formula I which is a free alkali PLX5622, and preparation methods therefor. The crystal form A has a relatively stable physicochemical property; the crystal form B has a better effect of eliminating microglial cells and a more stable drug effect; the hydrate crystal form C, the solvate crystal form D, the crystal form E and the crystal form F have better crystallinity, granularity and fluidity from the solid form, thereby providing more choices for the medicinal crystal form research of the compound of formula I which is the free alkali PLX5622.

Abstract: The present disclosure provides KRAS inhibitors. Methods of treating cancers using the compounds are also provided.

Abstract: This application belongs to the field of rotation angles detection, and provides a self-calibration method for a magnetic encoder, a motor, and a method for calibrating detection values of angles. The self-calibration method for the magnetic encoder includes: performing a low-pass filtering process on detection values ?det(ij) to obtain filtered values ?filt(ij); setting m reference points ?ref(n) within 360°, and selecting detection values ?det(ij-n) respectively closest to each reference point ?ref(n) in each period; selecting filtered values ?filt(ij-n) corresponding to ?det(ij-n); calculating trimming values ?cal(i-n)=?filt(ij-n)??det(ij-n); performing an averaging process on ?cal(i-n) over p periods for each reference point ?ref(n) to obtain target trimming values ?cal(n); and storing each of the reference points ?ref(n) and the target trimming values ?cal(n) respectively corresponding to the each of the reference point in a one-to-one correspondence as a trimming reference table.

Abstract: Security with dynamic privilege level assignment in a hybrid-cloud stack is provided. A request associated with a user is received. For the request, a mapping and an authority structure are retrieved, where the mapping identifies a plurality of services and the authority structure identifies requisite privilege levels of the plurality of services. For the user, an allowed privilege range is retrieved. A current privilege level is set to a minimum privilege level of the allowed privilege range. A requisite privilege level for the request is determined based on the requisite privilege levels of the plurality of services. In response to determining that the current privilege level is less than the requisite privilege level for the request, the current privilege level is escalated based on the allowed privilege range and the requisite privilege level for the request, and the request is processed using the escalated privilege level.

Abstract: A medical image noise reduction method, system, terminal and storage medium are disclosed. The method includes: obtaining a standard-dose PET image and a constant-value image; inputting the standard-dose PET image and the constant-value image into a decay function to obtain a corresponding low-dose noisy PET image and a noisy constant-value image, respectively; assembling the low-dose noisy PET image and the noisy constant-value image in a width dimension or a height dimension, and then inputting into a trained conjugate generative adversarial network, and outputting a denoised PET image and constant-value image output by the conjugate generative adversarial network.

Abstract: A foldable lampshade is provided, which includes a foldable support frame and a cloth covering, where the cloth covering is detachably connected to the foldable support frame, and the foldable support frame includes an outer support frame, an inner support member, and connecting members connecting the outer support frame and the inner support member. The outer support frame includes a first support member, a second support member, and first joint members, where the first support member is foldably connected to the second support member through the first joint members, the inner support member has a hinge structure, and the rotational axis of the first joint members and the rotational axis of the hinge structure are located on a same axis line. The foldable lampshade adopts a foldable support frame, which has a simple structure, is easy to disassemble and install, and effectively saves the intermediate cost.

Abstract: An information handling system includes a storage and a processor. The storage stores a key file in a partition of the storage. The processor receives a request for the key file and determines whether the key file is located within the partition of the storage. In response to the key file not being within the partition of the storage, the processor retrieves metadata for the key file. The processor determines a physical location for the key file based on the metadata. Based on the physical location, the processor retrieves segments of the key file from the partition of the storage. The processor downloads segments of the key file from a backend server. The processor re-creates the key file based on the segments of the key file retrieved from the partition of the storage and on the segments of the key file downloaded from the backend server.

Abstract: In a method for in-situ U-Pb dating of heterogeneous minerals, a target mineral is separated and purified by carrying out data analysis, extraction and enhancement on original mapping data. The method highlights distribution features of dating indexes (U content, Pb content, Pb206/U238 ratio, Pb207/U235 ratio and Th/U ratio) in a target mineral phase with a noise data processing technology, and more intuitively displays a favorable dating portion and a crystal growth change trend of the dating mineral. Further, a fine spot design is provided for high-precision dating analysis in a later stage. A plurality of geological events experienced by a heterogeneous mineral crystal in a growth process is accurately limited, so as to invert the mineral formation history which provides the basis for better study of mineralogy, mineral geochemistry and mineral geochronology. It is hence a novel indispensable auxiliary means of mineral geochronology and an auxiliary method for mineral exploration.

Abstract: Highly efficient methods are provided for preparing key intermediates in the synthesis of Compound (I), which are broadly applicable and can provide selected components having a variety of substituents groups.

Abstract: In accordance with an embodiment, a data processing method includes: obtaining a first operation command, where the first operation command is used to perform data processing in a relational database; determining an acceleration policy of the first operation command, wherein the acceleration policy is used to accelerate a processing process of the first operation command; and performing an operation of the first operation command based on the acceleration policy.

Abstract: Embodiments of this application provide a random access response method and an apparatus. The method includes: RARs associated with one RO are transmitted based on groups, so that a transport block size of RAR data transmitted each time is reduced, and N bits in DCI format 1_0 of CRC are scrambled by using a RA-RNTI to indicate scheduling information of N RAR groups in a PDSCH. Alternatively, DCI format 1_0 of CRC is scrambled by using identifiers of RAR groups, to correspondingly schedule the RAR groups in the PDSCH. According to this application, a problem of a large transport block caused by a large quantity of RARs being transmitted in a PDSCH can be avoided, so that a modulation order or a bit rate is reduced, and demodulation performance of a terminal device is improved.

Abstract: A method for processing an intra prediction mode includes: determining whether an intra prediction mode of each neighboring block in multiple neighboring blocks of a current block is applicable to the current block; and obtaining multiple mapped intra prediction modes of the current block according to a result of the determining, if it is determined that an intra prediction mode of a neighboring block is applicable to the current block, setting the intra prediction mode of the neighboring block as a mapped intra prediction mode of the current block, and if it is determined that the intra prediction mode of the neighboring block is not applicable to the current block, setting a specific intra prediction mode as the mapped intra prediction mode of the current block.

Abstract: Various aspects of the present disclosure generally relate to certificate based application descriptors for network slice selection. In some aspects, a user equipment (UE) may receive a first certificate associated with obtaining a network slice for executing an application. The UE may transmit, to a device, a request for the network slice with the first certificate, and receive an indication that the network slice is available to the UE for the application, based at least in part on the request. Numerous other aspects are provided.

Abstract: This application discloses a conference terminal and a control method and apparatus thereof, and belongs to the field of computer technologies. The method is applied to the conference terminal, and the conference terminal displays a graphical interface. The method includes: receiving a clone interface starting instruction, where the clone interface starting instruction instructs to display a clone interface of the graphical interface on the conference terminal; displaying the clone interface on the conference terminal in response to the clone interface starting instruction; receiving a user operation instruction executed on the clone interface; and in response to the user operation instruction, performing, on the clone interface, an operation instructed by the user operation instruction.