Abstract: This application belongs to the communication field, and discloses an authentication method, apparatus, and system, and a storage medium. The method includes: A data access engine receives a first notification message, where the first notification message indicates that a permission policy platform generates a first permission policy, and the data access engine includes a plurality of data access units. The data access engine obtains the first permission policy based on the first notification message. The data access engine associates the first permission policy with the data access units in the data access engine, where the plurality of data access units include a first data access unit, and the first data access unit is configured to perform, based on a permission policy associated with the first data access unit, authentication on permission of a user to access a data storage system. This application can avoid an authentication conflict.

Abstract: A low inductance capacitor with annular distributed cores is provided, which relates to the technical field of capacitors, and includes a lower bus bar, capacitor cores and an upper bus bar. Currents accessed from lower connection terminals flow to a closed end of the lower bus bar along copper bar connecting plates, and flow to the upper bus bar through the capacitor cores, and then flow out from upper connection terminals to form a loop. And positions of the copper bar connecting plates are in one-to-one correspondence with positions of the capacitor cores, and flow directions of the currents are opposite.

Abstract: A display module includes a middle frame, a display screen, a coil, and a magnet. The display screen is arranged on the middle frame. The display screen and the middle frame cooperatively define a receiving space. The coil defines an accommodation space. A portion of the magnet is accommodated in the accommodation space. The magnet and the coil are received in the receiving space. One of the magnet and the coil is arranged on the display screen, and the other one of the magnet and the coil is arranged on the middle frame.

Abstract: This application provides a data read method. The data read method includes: A resource management server receives a data read request from a client. The data read request is used to request a plurality of files. The resource management server reads a replica of target data from a first data center. The target data includes data of different files among the plurality of files, the first data center is a data center with highest data locality among a plurality of data centers that store replicas of the target data, and data locality is used to indicate a degree of proximity between a replica of the target data stored in a data center and the target data. The resource management server sends, to the client, the replica of the target data read from the first data center.

Abstract: An earphone of adjustable size to fit the ears of different users includes a housing, a speaker, an air path, an inflatable earplug, and a control assembly. The speaker and at least one part of the air path are arranged in the housing. The inflatable earplug communicates with the air path and is detachably attached to the housing. The control assembly is arranged outside of the housing and configured to inflate and deflate the inflatable earplug through the air path.

Abstract: This application provides a data backup method. The method is applied to a data backup system including a primary cluster, a secondary cluster, and a control device. The control device controls, based on a first data backup policy, the primary cluster or the secondary cluster to back up, to the secondary cluster, a plurality of data sets related to a first service that are in the primary cluster and that are at a first moment, where the first data backup policy includes information about the plurality of data sets related to the first service and the first moment. In this way, the plurality of data sets related to the first service that are backed up to the secondary cluster may be consistent in a time dimension, and the secondary cluster may restore service running based on service data in a same time period when the primary cluster is faulty.

Abstract: An electronic device includes a circuit board, a protective assembly, and a protective film. The protective assembly providing a cavity is arranged on one side of the circuit board. The protective assembly includes a first protective unit and a second protective unit. A third through hole communicating with the cavity is defined in the first protective unit. A supporting surface is defined on the second protective unit facing the third through hole. A projection of the third through hole is overlapped with a projection of the supporting surface along the first direction. The protective film is coupled to the protective assembly and arranged in the cavity to divide the cavity into a first cavity and a second cavity. The above-mentioned electronic device resists deformation of the protective film by setting the second protective unit between the circuit board and the protective film.

Abstract: The present disclosure discloses a steel strip coiling temperature control method, a steel strip coiling temperature control device and a steel strip processing system, which relate to the technical field of steel strip production. The method comprises: seeking a corresponding speed compensation coefficient according to a target thickness of the steel strip and a target temperature parameter; seeking a corresponding speed gain coefficient from a second correspondence table according to a steel strip speed; correcting the steel strip speed based on the speed compensation coefficient and the speed gain coefficient to obtain a corrected steel strip speed; and adjusting a cooling efficiency of a laminar flow cooling apparatus according to the corrected steel strip speed.

Abstract: An electronic device includes a circuit board, a protective assembly, and a protective film. The protective assembly providing a cavity is arranged on one side of the circuit board. The protective assembly includes a first protective unit and a second protective unit. A third through hole communicating with the cavity is defined in the first protective unit. A supporting surface is defined on the second protective unit facing the third through hole. A projection of the third through hole is overlapped with a projection of the supporting surface along the first direction. The protective film is coupled to the protective assembly and arranged in the cavity to divide the cavity into a first cavity and a second cavity. The above-mentioned electronic device resists deformation of the protective film by setting the second protective unit between the circuit board and the protective film.

Abstract: An earphone of adjustable size to fit the ears of different users includes a housing, a speaker, an air path, an inflatable earplug, and a control assembly. The speaker and at least one part of the air path are arranged in the housing. The inflatable earplug communicates with the air path and is detachably attached to the housing. The control assembly is arranged outside of the housing and configured to inflate and deflate the inflatable earplug through the air path.

Abstract: This application provides a data read method. The data read method includes: A resource management server receives a data read request from a client. The data read request is used to request a plurality of files. The resource management server reads a replica of target data from a first data center. The target data includes data of different files among the plurality of files, the first data center is a data center with highest data locality among a plurality of data centers that store replicas of the target data, and data locality is used to indicate a degree of proximity between a replica of the target data stored in a data center and the target data. The resource management server sends, to the client, the replica of the target data read from the first data center.

Abstract: A display module includes a middle frame, a display screen, a coil, and a magnet. The display screen is arranged on the middle frame. The display screen and the middle frame cooperatively define a receiving space. The coil defines an accommodation space. A portion of the magnet is accommodated in the accommodation space. The magnet and the coil are received in the receiving space. One of the magnet and the coil is arranged on the display screen, and the other one of the magnet and the coil is arranged on the middle frame.

Abstract: The present disclosure discloses a steel strip coiling temperature control method, a steel strip coiling temperature control device and a steel strip processing system, which relate to the technical field of steel strip production. The method comprises: seeking a corresponding speed compensation coefficient according to a target thickness of the steel strip and a target temperature parameter; seeking a corresponding speed gain coefficient from a second correspondence table according to a steel strip speed; correcting the steel strip speed based on the speed compensation coefficient and the speed gain coefficient to obtain a corrected steel strip speed; and adjusting a cooling efficiency of a laminar flow cooling apparatus according to the corrected steel strip speed.

Abstract: A portable electronic device defines a substantially enclosed interior space and includes a detecting pin, a processor and a reeling mechanism. The reeling mechanism drives a headset assembly to be withdrawn from and retracted into the enclosed interior space. The reeling mechanism includes an urging member. When the headset assembly is withdrawn from the enclosed interior space, the urging member is in an elastically deformed state and the detecting pin is floating and triggers a first control signal to the processor. The processor activates the headset assembly in response to the first control signal. When the headset assembly is refracted into the enclosed interior space, the urging member returns to its original state and is electronically contacted with the detecting pin and the detecting pin triggers a second control signal to the processor. The processor inactivates the headset assembly in response to the second control signal.

Abstract: The present invention discloses methods for analyzing the activity of lipoxygenase by using polyunsaturated lysophosphatidylcholine as a water-soluble substrate. In these methods, lipoxygenase activity can be analyzed without using detergents in reaction solution.

Abstract: Techniques to support modification of certain data in a database during an upgrade to a new version. In one method, objects in an original database are marked as either modifiable or read-only, with changes being allowed for modifiable objects during the upgrade. An upgraded database of objects is generated based on objects in the original database (e.g., by copying objects in the original database and upgrading the copied objects to new schema and binaries). Changes to modifiable objects in the original database (e.g., after these objects have been copied) are logged. After the upgraded database has been created, objects in this database may be updated (e.g., individually or all at once) by identifying modifiable objects in the original database having changes not yet incorporated into the upgraded database and updating objects in the upgraded database based on the modified objects in the original database.

Abstract: The present invention discloses methods for analyzing the activity of lipoxygenase by using polyunsaturated lysophosphatidylcholine as a water-soluble substrate. In these methods, lipoxygenase activity can be analyzed without using detergents in reaction solution.

Abstract: Techniques to track and publish changes to object instances. For an “outbound process” to publish object instances, a list of object instances is initially received. For each received object instance, a determination is made whether or not the object instance has changed since its last publication. For each changed object instance, a delta snapshot is generated and includes data indicative of changes between the current and last published versions of the object instance. Delta snapshots for all changed object instances are then published. For an “inbound process” to receive object instances, the published delta snapshots are initially received. For each received delta snapshot, the corresponding object instance is retrieved and updated with the changes included in the delta snapshot. A new snapshot is also generated for each updated object instance such that the received changes are not published, and unpublished changes made locally are noted for subsequent publication.

Abstract: Techniques to track and publish changes to object instances. For an “outbound process” to publish object instances, a list of object instances is initially received. For each received object instance, a determination is made whether or not the object instance has changed since its last publication. For each changed object instance, a delta snapshot is generated and includes data indicative of changes between the current and last published versions of the object instance. Delta snapshots for all changed object instances are then published. For an “inbound process” to receive object instances, the published delta snapshots are initially received. For each received delta snapshot, the corresponding object instance is retrieved and updated with the changes included in the delta snapshot. A new snapshot is also generated for each updated object instance such that the received changes are not published, and unpublished changes made locally are noted for subsequent publication.

Abstract: Techniques to support modification of certain data in a database during an upgrade to a new version. In one method, objects in an original database are marked as either modifiable or read-only, with changes being allowed for modifiable objects during the upgrade. An upgraded database of objects is generated based on objects in the original database (e.g., by copying objects in the original database and upgrading the copied objects to new schema and binaries). Changes to modifiable objects in the original database (e.g., after these objects have been copied) are logged. After the upgraded database has been created, objects in this database may be updated (e.g., individually or all at once) by identifying modifiable objects in the original database having changes not yet incorporated into the upgraded database and updating objects in the upgraded database based on the modified objects in the original database.