Abstract: A crystal form of a pyrimidine heterocyclic compound and a preparation method therefor. Specifically disclosed are a preparation method for and application of a compound of formula (II) and the crystal form thereof.

Abstract: A data storage system includes: a plurality of data storage devices; a motherboard containing a baseboard management controller (BMC); and a network switch configured to route network traffic to the plurality of data storage devices. The BMC is configured to identify a group of data storage devices among the plurality of data storage devices based on device-specific information received from the plurality of data storage devices and send identifiers of the group of data storage devices to a querying party.

Abstract: This application describes systems and methods for facilitating memory access on flash drives. An example method may start with receiving a read command on a flash memory from a host specifying a logic block address (LBA). The flash memory may include a plurality of blocks grouped into a plurality of super blocks, and each of the plurality of blocks may include a plurality of pages. The method may further include determining a zone identification and an LBA offset based on the LBA; determining a flash physical address (FPA) corresponding to the LBA by accessing a mapping table stored in a random access memory (RAM) according to the zone identification and the LBA offset (e.g., the mapping table includes a plurality of FPAs arranged in a plurality of zones corresponding to the plurality of super blocks); and determining a page number and a block identification corresponding to the FPA.

Abstract: A storage device is disclosed. The storage device may include storage to store data and a controller to manage reading data from and writing data to the storage. The controller may also include a receiver to receive a plurality of requests, information determination logic to determine information about the plurality of requests, storage for the information about a plurality of requests, and sharing logic to share the information with a management controller.

Abstract: The present invention discloses a bridged ring-substituted heteroaryl-pyran derivative and a use thereof, and in particular discloses a compound as represented in formula (VI) or a pharmaceutically acceptable salt thereof.

Abstract: A method of training an index filter for an index tuning system includes receiving a plurality of different workloads and a plurality of different databases, each database including different tables and each workload including a plurality of queries; generating labeled training by making optimizer calls to a query optimizer using query and index configuration pairs from the plurality of databases and the plurality of workloads; training an index filter model to identify signals in the labeled training data, the signals being indicative of a potential performance improvement associated with using an index configuration for a given query; training the index filter model to learn rules over the signals for identifying spurious indexes; and storing the index filter model in a memory.

Abstract: According to some example embodiments, a method for providing security to a storage device includes receiving, by the storage device, a public key via a network; sending, by the storage device, the received public key and a proposed configuration corresponding to the storage device to a security manager that resides in a control plane of the network; determining, by the security manager, whether the public key received from the storage device matches a private key available to the security manager; downloading, by the security manager, the proposed configuration to the storage device; determining, by the security manager, if the proposed configuration is successfully downloaded to the storage device; operating the storage device according to the downloaded configuration; and granting, by the security manager, a request to lease the storage device operating in the downloaded configuration for a time interval.

Abstract: The present application relates to a pyrimidopyran compound, and specifically discloses a compound as represented by formula (III), and a pharmaceutically acceptable salt thereof.

Abstract: The present disclosure provides a noise reduction device. The noise reduction device may include a noise receiving component, a noise reduction component, a processing component, and a housing. The noise receiving component may be configured to receive acoustic noise information of a scanning environment where a medical device is located. The processing component may be configured to control the noise reduction component to generate sound information matching the acoustic noise information received by the noise receiving component. The housing may be configured to support the noise receiving component and the noise reduction component.

Abstract: A storage system comprises one or more storage devices, power supplies supplying power to the storage device, a processor that performs in response to determining that the total power consumption of the one or more storage devices is less than a first percentage threshold of a load of the active power supplies, deactivating one or more of the active power supplies until the total power consumption is equal to or greater than the first percentage threshold of a load of each of the active power supplies, and in response to determining that the total power consumption is equal to or greater than a second percentage threshold of a load of each of the active power supplies, activating one or more of the deactivated ones of the power supplies until the total power consumption is less than the second percentage threshold of the load of each of the active power supplies.

Abstract: A reflection apparatus includes a base plate, where one side is used to dispose a radiation unit, and the other side is used to dispose a feeding network; a first side plate and a second side plate that are separately connected to the base plate and that are disposed opposite to each other, where the first side plate and the second side plate each extend relative to the base plate and toward the side used to dispose the feeding network; a first return plate connected to the first side plate, where the first return plate extends relative to the first side plate and toward a direction of the feeding network; and a second return plate connected to the second side plate, where the second return plate extends relative to the second side plate and toward the direction of the feeding network.

Abstract: A storage system comprises one or more storage devices, power supplies supplying power to the storage device, a processor that performs in response to determining that the total power consumption of the one or more storage devices is less than a first percentage threshold of a load of the active power supplies, deactivating one or more of the active power supplies until the total power consumption is equal to or greater than the first percentage threshold of a load of each of the active power supplies, and in response to determining that the total power consumption is equal to or greater than a second percentage threshold of a load of each of the active power supplies, activating one or more of the deactivated ones of the power supplies until the total power consumption is less than the second percentage threshold of the load of each of the active power supplies.

Abstract: A class of pyrimidoheterocyclic compounds, and specifically disclosed is a compound represented by formula (III) or a pharmaceutically acceptable salt thereof.

Abstract: Disclosed are a series of benzopyrimidine compounds and a use thereof, and specifically disclosed are compounds represented by formula (II) and pharmaceutically acceptable salts thereof.

Abstract: A storage system includes at least one solid-state drive (SSD) and a baseboard management controller (BMC). The at least one SSD communicates over a communication link information that the at least one SSD includes a predetermined number of super capacitors in which the predetermined number includes 0, and is capable of providing a mode of operation to flush data in a non-volatile memory to a non-volatile memory that spans a predetermined amount of time if a loss of power condition is detected. The BMC device receives the information from the SSD and in response sends a message to the at least on SSD to enter the mode of operation.

Abstract: An electrostatic nozzle and a minimal quantity lubricating and grinding system for a controllable jet. An electrostatic nozzle includes a nozzle core, an upper nozzle body being connected above the nozzle core; an empty space being formed between the upper nozzle body and the nozzle core for storing compressed air and decompression; a lower nozzle body being connected below the nozzle core; a gas-liquid mixing chamber, an acceleration chamber, and a nozzle outlet being sequentially disposed inside the nozzle core from top to bottom; and micro-convex bodies being evenly arranged on an inner wall of the acceleration chamber.

Abstract: This application describes systems and methods for facilitating memory access in flash drives. An example method performed by a memory controller may include receiving, from a host, a write command comprising data to be written into a flash memory; splitting the data into a first portion and a second portion; storing the first portion into a static random-access memory (SRAM) in the memory controller; storing the second portion into a dynamic random-access memory (DRAM) communicatively coupled with the memory controller; initiating a configuration operation corresponding to the write command; fetching the first portion from the SRAM and the second portion from the DRAM in response to the flash translation layer indicating a ready status to store the data into the flash memory; combining the fetched first portion and the fetched second portion; and storing the combined first portion and the second portion into the flash memory.

Abstract: The present application relates to a pyrimidopyran compound, and specifically discloses a compound as represented by formula (III), and a pharmaceutically acceptable salt thereof.

Abstract: The present disclosure relates to methods and systems for compressing workloads for use with index tuning. The methods and systems receive a workload with a plurality of queries. The methods and systems represent each query using query features and a utility. The methods and systems select a query for a query subset based on a benefit of the query determined using the query features and the utility. The methods and systems update the features and the utility of the remaining queries in the workload and select another query to add to the query subset based on an updated benefit determined using the updated features and utilities. The methods and systems select queries for the query subset equal to a received query subset size. The methods and systems use the query subset in index tuning to provide one or more indexes to recommendations.

Abstract: A method may include determining, with a queue availability module, that an entry is available in a queue, asserting a bit in a register based on determining that an entry is available in the queue, determining, with a processor, that the bit is asserted, and processing, with the processor, the entry in the queue based on determining that the bit is asserted. The method may further include storing the register in a tightly coupled memory associated with the processor. The method may further include storing the queue in the tightly coupled memory. The method may further include determining, with the queue availability module, that an entry is available in a second queue, and asserting a second bit in the register based on determining that an entry is available in the second queue. The method may further include finding the first bit in the register using a find first instruction.