Abstract: A display substrate includes at least two barrier layers in a peripheral area of the display substrate. The at least two barrier layers includes a first barrier layer forming an enclosure; and a third barrier layer on a side of the first barrier layer closer to a display area. The third barrier layer includes one or more discontinuous portions.

Abstract: A modified immune effector cell may be one in which the functions of a T cell antigen receptor (TCR) and major histocompatibility complexes (MHCI, MHCII) in the modified immune effector cell are inhibited in a T cell. Such a modified immune effector cell may include a chimeric antigen receptor (CAR) targeting GD2. Such a modified immune effector cell may knock out TCR and HLA-A genes expressed by the cell while recognizing surface antigens of tumor cells, so that multiple effects of improving the anti-tumor effect of CAR-T cells, prolonging the survival time of the cells, and reducing the immune rejection response caused by allogeneic cell therapy may be reduced.

Abstract: An unmanned vehicle includes a body, at least one power source coupled to the body, a flight propulsion system coupled to the at least one power source and configured to propel the unmanned vehicle through air, and a surface propulsion system coupled to the at least one power source and configured to propel the unmanned vehicle along a surface. The unmanned vehicle is configured to switch between a flight configuration in which the unmanned vehicle is propelled through air via the flight propulsion system, and a surface traverse configuration in which the unmanned vehicle is propelled along the surface via the surface propulsion system. In the surface traverse configuration, the surface propulsion system is configured to engage the surface and to maintain the body in a traversing position below the surface as the surface propulsion system propels the unmanned vehicle along the surface.

Abstract: An active transaction list synchronization method and apparatus comprising a first node that records, in a transaction list incremental log buffer, a transaction list incremental log that is obtained after last active transaction list synchronization, where the transaction list incremental log indicates a change of a transaction recorded in an active transaction list of the first node and includes an added-transaction log and a committed-transaction log, wherein the added-transaction log indicates a transaction is added to the active transaction list, wherein the committed-transaction log indicates a transaction is deleted from the active transaction list. When performing group commit on transactions recorded in the committed-transaction log, the first node sends the transaction list incremental log to at least one second node.

Abstract: Embodiments of this application provide a method and an apparatus for multi-replica data restoration. The method is applied to a distributed database and includes: when a first page in replica data of a first node has a fault, obtain N latest LSNs in data log information of a second node that corresponds to a first page identifier. The first page is any page that is in the replica data of the first node and that has a fault. The first node further determines a node corresponding to a largest LSN in the N latest LSNs in the data log information of the second node that corresponds to the first page identifier is a third node. Then the first node performs data restoration on the first page in the replica data of the first node according to replica data of the third node.

Abstract: A parallel execution method and apparatus in a terminal database, where the method includes determining, by a terminal, each thread central processing unit (CPU) based on a preset degree of parallelism, where the degree of parallelism is a quantity of threads executed in parallel, obtaining, by the terminal, a frequency of each thread CPU, calculating a frequency proportion of the thread CPUs, dividing, by the terminal, a to-be-queried data table in the terminal database into data partitions based on the frequency proportion of the thread CPUs, determining a data partition corresponding to each thread CPU, and querying in parallel, by the terminal, data in the corresponding data partition using each thread CPU.

Abstract: An active transaction list synchronization method and apparatus comprising a first node that records, in a transaction list incremental log buffer, a transaction list incremental log that is obtained after last active transaction list synchronization, where the transaction list incremental log indicates a change of a transaction recorded in an active transaction list of the first node and includes an added-transaction log and a committed-transaction log, wherein the added-transaction log indicates a transaction is added to the active transaction list, wherein the committed-transaction log indicates a transaction is deleted from the active transaction list. When performing group commit on transactions recorded in the committed-transaction log, the first node sends the transaction list incremental log to at least one second node.

Abstract: Embodiments of this application provide a method and an apparatus for multi-replica data restoration. The method is applied to a distributed database and includes: when a first page in replica data of a first node has a fault, obtain N latest LSNs in data log information of a second node that corresponds to a first page identifier. The first page is any page that is in the replica data of the first node and that has a fault. The first node further determines a node corresponding to a largest LSN in the N latest LSNs in the data log information of the second node that corresponds to the first page identifier is a third node. Then the first node performs data restoration on the first page in the replica data of the first node according to replica data of the third node.

Abstract: A parallel execution method and apparatus in a terminal database, where the method includes determining, by a terminal, each thread central processing unit (CPU) based on a preset degree of parallelism, where the degree of parallelism is a quantity of threads executed in parallel, obtaining, by the terminal, a frequency of each thread CPU, calculating a frequency proportion of the thread CPUs, dividing, by the terminal, a to-be-queried data table in the terminal database into data partitions based on the frequency proportion of the thread CPUs, determining a data partition corresponding to each thread CPU, and querying in parallel, by the terminal, data in the corresponding data partition using each thread CPU.

Abstract: An ink cartridge carrier device includes a casing, having an opening and an inner chamber communicated with each other, for carrying an ink cartridge; a locking/unlocking mechanism, pivoted on the casing, such that the locking/unlocking mechanism is made to be rotatable and applies a restraining force to fix the ink cartridge into the inner chamber; a first elastic member, connected to the locking/unlocking mechanism, for providing the restraining force to actuate the locking/unlocking mechanism, so as to fix the ink cartridge into the inner chamber; a pushing mechanism, for pushing a part of the ink cartridge carried within the inner chamber out of the casing, so as to unload the ink cartridge. The device makes the ink cartridge well fixed, and enables the ink cartridge to be horizontally loaded or unloaded, which does not have the problems of unsmooth loading or unloading or getting stuck during unloading or loading.

Abstract: A tuning element having a second inclined plane interacts with a pushing element having a first inclined plane to accomplish adjusting the position of a printhead. The tuning element rotates relative to a printhead carrier and produces displacement in a second direction and the second inclined plane of the tuning element then pushes the first inclined plane of the pushing element and produces displacement in a first direction in a linear way corresponding to the rotation of the tuning element. Meanwhile, the printhead closely in contact with the pushing element also produces displacement in the first direction so that the tuning apparatus is endowed with highly accurate and linear adjustability.

Abstract: An ink cartridge carrier device includes a casing, having an opening and an inner chamber communicated with each other, for carrying an ink cartridge; a locking/unlocking mechanism, pivoted on the casing, such that the locking/unlocking mechanism is made to be rotatable and applies a restraining force to fix the ink cartridge into the inner chamber; a first elastic member, connected to the locking/unlocking mechanism, for providing the restraining force to actuate the locking/unlocking mechanism, so as to fix the ink cartridge into the inner chamber; a pushing mechanism, for pushing a part of the ink cartridge carried within the inner chamber out of the casing, so as to unload the ink cartridge. The device makes the ink cartridge well fixed, and enables the ink cartridge to be horizontally loaded or unloaded, which does not have the problems of unsmooth loading or unloading or getting stuck during unloading or loading.

Abstract: A tuning element having a second inclined plane interacts with a pushing element having a first inclined plane to accomplish adjusting the position of a printhead. The tuning element rotates relative to a printhead carrier and produces displacement in a second direction and the second inclined plane of the tuning element then pushes the first inclined plane of the pushing element and produces displacement in a first direction in a linear way corresponding to the rotation of the tuning element. Meanwhile, the printhead closely in contact with the pushing element also produces displacement in the first direction so that the tuning apparatus is endowed with highly accurate and linear adjustability.