Abstract: A memory sub-system performs a first media management operation among a plurality of individual data units of a memory device after a first interval, the first media management operation comprising a first algebraic mapping function, and performs a second media management operation among a first plurality of groups of data units of the memory device after a second interval, wherein a first group of the first plurality of groups comprises the plurality of individual data units, the second media management operation comprising a second algebraic mapping function.

Abstract: A method for extracting palladium includes: (1) mixing a palladium-containing material with nitric acid and an alkali metal ion-containing catalyst to obtain a mixed solution, heating the mixed solution, and removing a resulting residue to obtain a palladium-containing leaching liquor; and (2) subjecting the palladium-containing leaching liquor obtained in step (1) to separative extraction to obtain metallic palladium or at least one palladium-containing product, and reusing a residual solution for step (1) in a subsequent extraction. The alkali metal ion-containing catalyst of the present disclosure can leach palladium at a higher rate than that when pure nitric acid of the same concentration is used and does not volatilize, such that the recycling of a mother liquor can be realized. The method involves simple operations, has low production costs, greatly shortens the palladium extraction time, does not lead to secondary pollution, and meets the requirements of environmental protection.

Abstract: In one embodiment, a processing device is coupled to memory components to monitor host read operations and host write operations from a host device coupled to the plurality of memory components. The processing device schedules, using a variable size internal command queue, a predetermined proportion of back-end processing device read and write operations as internal management traffic proportional to a number of the host read operations and a number of the host write operations. The processing device then executes a subset of the host read operations and the host write operations. Following execution of the subset of the host read operations and the host write operations, the processing device executes an internal management traffic operation based on the predetermined proportion.

Abstract: A cleaning equipment includes a first take-up reel, a first supply reel, a frame, a first cleaning film, and a transmission assembly. The frame includes an inner space accommodating the first take-up reel and the first supply reel side by side and an outer surface having at least one gap communicating with the inner space. The first cleaning film has a supply part on the first supply reel, a take-up part on the first take-up reel, and a middle part at least partially covering the outer surface of the frame. Two ends of the middle part enter the inner space through the at least one gap and are connected to the supply part and the take-up part, respectively. The transmission assembly is coupled to the first supply reel and the first take-up reel and drives at least one of the first supply reel and the first take-up reel to rotate.

Abstract: A chip design verification system and method, and a computer readable recording medium with a stored program are provided for verifying a module under test. The chip design verification system is configured to: transmitting, by the driver module, the test data sets to the result verification module and performing, by the driver module, a write procedure to write the test data sets into the storage space modules; performing, by the module under test, an autoload function to load the test data sets stored in the storage space modules into the registers correspondingly; and reading, by the result verification module, a plurality of first readout values corresponding to the test data sets at the registers according to the location data of each of the test data sets and comparing, by the result verification module, the test data sets with the first readout values to determine whether the autoload function operates normally.

Abstract: A cleaning robot includes a main body and a cleaning module. The main body is configured to move on a floor along a travelling direction. The cleaning module includes a first shaft and some first roller sets. The first shaft is connected with the main body. The first shaft extends along a first axis perpendicular to the travelling direction. The first roller sets are separated from each other. Each first roller set includes a first bearing, a first tire and a first flexible structure. The first shaft penetrates through the first bearing. The first tire includes a first cleaning surface configured to abut against the floor. The first flexible structure includes a first inner surface and a first outer surface. The first inner surface abuts against the first bearing. The first outer surface abuts against the first tire. The first flexible structure has a first elasticity.

Abstract: A method of populating page tables of an executing workload during migration of the executing workload from a source host to a destination host includes the steps of: during transmission of memory pages of the executing workload from the source host to the destination host, populating the page tables of the workload at the destination host, wherein the populating comprises inserting mappings from virtual addresses of the workload to physical addresses of system memory of the destination host for all of the memory pages of the executing workload; and upon completion of transmission of all of the memory pages of the workload, resuming the workload at the destination host.

Abstract: An example method may include performing a first wear leveling operation on a group of data blocks based on a write counter associated with the group of data blocks, wherein the first wear leveling operation comprises including the group of data blocks in a plurality of groups of mapped data blocks, responsive to including the group of data blocks in the plurality of groups of mapped data blocks, performing a second wear leveling operation on the group of data blocks, wherein performing the second wear leveling operation comprises determining a base address of the group of data blocks, the base address indicating a location at which the group of data blocks begins, and accessing a data block in the group of data blocks based on the base address of the group of data blocks and a logical address associated with the data block.

Abstract: Devices, methods, and media are described for unmap support in coarse mapped storage. In one embodiment a controller of a memory sub-system manages a set of metadata for super management units (SMU) of the memory sub-system, wherein each SMU of the memory sub-system comprises a plurality of data management units (MU), and wherein each MU comprises a plurality of addressable memory elements as part of a coarse memory storage of the memory sub-system. The controller processes a trim command for a first SMU of the plurality of SMUs, and adjusts a trim bit associated with metadata for the first SMU. This trim bit can then be used to manage read and write operations as the trimmed unit waits to be written with an unmap data pattern. Similarly, a trim bit in MU metadata can be used manage related operations to prevent memory access errors.

Abstract: A display device includes a screen, a screen stand and a fixing module. The screen stand is pivotally connected to the screen. The fixing module is connected to the screen stand and configured to clamp a first surface and a second surface of a board and includes a connecting element, a first abutting element and a second abutting element. The first abutting element is fixed to the connecting element and configured to abut against the first surface of the board. The second abutting element is pivotally connected to the connecting element and includes an abutting end configured to abut against the second surface of the board.

Abstract: An instruction can be received at a sequencer from a controller. The sequencer can be in a package including the sequencer and one or more memory components. The sequencer is operatively coupled to a controller that is separate from the package. A processing device of the sequencer can perform an operation based on the instruction on at least one of the one or more memory components in the package.

Abstract: A host operation to be performed can be received. Sub-operations that are associated with the received host operation can be determined. A memory component of multiple memory components can be identified for each sub-operation. Furthermore, each sub-operation can be transmitted to a media sequencer component that is associated with a respective memory component of the memory components.

Abstract: The present disclosure provides high-purity semi-insulating single-crystal silicon carbide wafer and crystal which include one polytype single crystal. The semi-insulating single-crystal silicon carbide wafer has silicon vacancy inside, wherein the silicon-vacancy concentration is greater than 5E11 cm{circumflex over (?)}-3.

Abstract: The present application provides a group of human immortalized B lymphocyte cell lines and use thereof, and specifically provides a combination of four closely related immortalized lymphocyte cell lines. The combination can be used as a reference substances for measuring the performance of a detection platform. When the four closely related immortalized lymphocyte cell lines are used as reference substances for epigenome, transcriptome, proteome, and metabolome, an intrinsic magnitude difference gradient can be formed to evaluate the sensitivity of histological detection.

Abstract: A method includes receiving a request for host data, receiving a codeword that is associated with the host data, performing a decoding operation for a first portion of the codeword to generate a segment of decoded data, determining whether the segment of the decoded data satisfies the request for the host data, and in response to determining that the segment of the decoded data satisfies the request for the host data, terminating the decoding operation for remaining portions of the codeword.

Abstract: A processing device, operatively coupled with a memory device, performs operations including receiving a write request from a host system at a first time, the write request identifying first data to be stored in a segment of the memory device, determining whether a pre-read voltage level of the write request satisfies a pre-read voltage level criterion pertaining to a write-to-write time interval for the segment, wherein the write-to-write time interval is defined by the first time and a second time corresponding to a last time at which the segment was written, and responsive to determining that the pre-read voltage level satisfies the pre-read voltage level criterion pertaining to the write-to-write time interval, performing a pre-read operation on the segment using the pre-read voltage level to determine second data currently stored in the segment.

Abstract: A memory sub-system periodically performs a first wear leveling operation using a direct mapping function on a data management unit of a memory component in the memory sub-system at a first frequency. The memory sub-system further periodically performs a second wear leveling operation using indirect mapping on a group of data management units of the memory component at a second frequency, wherein the second wear leveling operation is performed less frequently than the first wear leveling operation.

Abstract: Methods, systems, and devices for cryptographic key management are described. A memory device can issue, by a firmware component, a command to generate a first cryptographic key for encrypting or decrypting user data stored on a memory device. The memory device can generate, by a hardware component, the first cryptographic key based on the command. The memory device can encrypt, by the hardware component, the first cryptographic key using a second cryptographic key and an initialization vector. The memory device can store the encrypted first cryptographic key in a nonvolatile memory device separate from the hardware component.

Abstract: A method of preserving the contiguity of large pages of a workload during migration of the workload from a source host to a destination host includes the steps of: detecting at the destination host, receipt of a small page of zeros from the source host, wherein, at the source host, the small page is part of one of the large pages of the workload; and upon detecting the receipt of the small page of zeros, storing, at the destination host, all zeros in a small page that is part of one of the large pages of the workload.

Abstract: Methods, systems, and devices for one or more clock domain crossing queues are described. A queue can receive, from a first clock domain, a first command to store data in the queue. The queue can store the data at a first location indicated by a first pointer. The queue can receive, from the first clock domain, a second command to cause the second clock domain to retrieve the data from the queue. The queue can generate, based on receiving the second command, a third command synchronized with a clock of the second clock domain and to cause the second clock domain to retrieve the data. The queue can retrieve the data from the first location in the queue indicated by a second pointer associated with retrieving data based at least in part on generating the third command. The queue can transmit, to the second clock domain, the data.