Abstract: A carrier vehicle includes a front frame and a rear frame conveniently attachable to and detachable from the front frame. The front frame includes a frame body, at least one battery structure installed along an inner front side wall of the frame body and a connecting rod wheel component at a transverse bottom of the frame body. The rear frame comprises an operating handle, a handle joint base, a hydraulic component having an oil cylinder, a bearing component and a driving assembly. A bottom end of the operating handle is rotatably connected to the handle joint base, which includes a joint fixing base and a microswitch. The bearing component includes a bearing bridge having bridge lugs detachably connected to ends thereof, and a middle part sleeved on the oil cylinder. The front frame and rear frame are transportable in a separated compact configuration, with later simple and fast assembly.

Abstract: The disclosure relates to handle mechanism and casing assembly. The handle mechanism is adapted to be installed on a slidable plate body. The handle mechanism includes handle component, latch component, and releasing component. The handle component has engaged position. The handle component includes first hook portion and first pushing portion. The first hook portion has first contact surface. The latch component is slidably disposed and has second hook portion and first contact portion. The second hook portion has second contact surface configured to contact the first contact surface. The releasing component is pivotably disposed and has pressed portion and second pushing portion. When the handle component is pivoted from the engaged position, the first pushing portion pushes the pressed portion so as to force the second pushing portion to push the first contact portion so that the second contact surface is forced to leave the first contact surface.

Abstract: A casing assembly is adapted for a carrier, the casing assembly includes a casing, an actuating component, and an engagement mechanism, the casing is adapted to be stacked on the carrier, the actuating component is disposed on the casing, the engagement mechanism includes a first component and a second component, the first component and the second component are connected to each other and are movably disposed on a surface of the casing, the actuating component is removably engaged with an end of the first component located away from the second component so as to cause the second component to be removably engaged with a first post of the carrier by pushing the first component.

Abstract: A detachably fixing device includes a base, a circuit board carrying plate, and a sliding plate. The circuit board carrying plate is slidably disposed on the base in a first direction and has a carrying plate linkage portion. The sliding plate is slidably disposed on the base in a second direction. The first direction and the second direction are non-parallel. The sliding plate has a sliding plate linkage portion mechanically connected with the carrying plate linkage portion, and an engaging portion. The circuit board carrying plate is operable to move to make the sliding plate slide outward relative to the base to make the engaging portion protrude from the base. An electronic apparatus casing includes a casing frame and the detachably fixing device. The detachably fixing device is detachably disposed on the casing frame. The engaging portion is separably engaged with an engaging structure of the casing frame.

Abstract: A tray assembly is detachably disposed on a casing and includes a tray body, at least one gear set, a handle, and at least one side cover. The tray body is adapted to be accommodated in the casing. The least one gear set is disposed at a side of the tray body. The at least one gear set has a first engagement portion configured to be engaged with the casing. The handle is rotatably connected to the tray body via the at least one gear set. The at least one side cover is fixed to the tray body and covers the at least one gear set.

Abstract: Embodiments of the present disclosure provide a method, an electronic device, and a computer program product for restoring data. The method described here includes: selecting a target time point at a storage system from multiple backup time points. The method further includes: determining a change in a data system in the storage system from the target time point to a current time point. The method further includes: overwriting the data system at the current time point based on the change. With the solution for restoring data of the present application, it is possible to reduce, based on the change in the data system since the target time point, the amount of data that needs to be retrieved in order to restore the current data system to a backup at the target time point, thereby achieving efficient data restoration.

Abstract: A testing device may receive, via a receiving port of a radio frequency (RF) frontend of the testing device, a downlink pilot signal, and may determine a phase associated with the downlink pilot signal. The testing device may transmit, via a transmitting port of the RF frontend of the testing device, an uplink pilot signal. The testing device may receive, after transmitting the uplink pilot signal, the uplink pilot signal via the receiving port of the RF frontend of the testing device. The testing device may determine, after receiving the uplink pilot signal, a phase associated with the uplink pilot signal. The testing device may adjust, based on a phase difference between the phase of the downlink pilot signal and the phase of the uplink pilot signal, one or more transmission settings of the testing device.

Abstract: Embodiments of the present disclosure provide a method, an electronic device and a computer program product for load balance. The method comprises: determine, in a round robin period, backup quota ratios for a plurality of servers used for data backup and associated with a cloud service platform; select, based on the backup quota ratios, one server from the plurality of servers; and in response to receiving a request for backup of data from an application on the cloud service platform, cause the backup of the data from the application to the selected server. In this way, load balance for a plurality of backup servers associated with a cloud service platform is achieved.

Abstract: One example method includes identifying changed objects in a filesystem. Entry lists of a previous backup and a current backup are processed at the same time. The comparison allows objects in the filesystem to be identified as unchanged, modified, new, or deleted relative to a previous backup.

Abstract: A detachably fixing device includes a base, a circuit board carrying plate, and a sliding plate. The circuit board carrying plate is slidably disposed on the base in a first direction and has a carrying plate linkage portion. The sliding plate is slidably disposed on the base in a second direction. The first direction and the second direction are non-parallel. The sliding plate has a sliding plate linkage portion mechanically connected with the carrying plate linkage portion, and an engaging portion. The circuit board carrying plate is operable to move to make the sliding plate slide outward relative to the base to make the engaging portion protrude from the base. An electronic apparatus casing includes a casing frame and the detachably fixing device. The detachably fixing device is detachably disposed on the casing frame. The engaging portion is separably engaged with an engaging structure of the casing frame.

Abstract: A device determines a scrambling sequence for a control channel, wherein the scrambling sequence includes a first set of bit string values for a set of downlink control information (DCI) candidates associated with the control channel, and wherein the scrambling sequence is determined based on an identifier that is exclusive to the device. The device determines, based on the scrambling sequence, a correlation sequence that includes a second set of bit string values. The device identifies, based on the correlation sequence, a subset of DCI candidates of the set of DCI candidates. The device selects at least a portion of the subset of DCI candidates. The device performs one or more actions based on one or more selected DCI candidates.

Abstract: The disclosure relates to handle mechanism and casing assembly. The handle mechanism is adapted to be installed on a slidable plate body. The handle mechanism includes handle component, latch component, and releasing component. The handle component has engaged position. The handle component includes first hook portion and first pushing portion. The first hook portion has first contact surface. The latch component is slidably disposed and has second hook portion and first contact portion. The second hook portion has second contact surface configured to contact the first contact surface. The releasing component is pivotably disposed and has pressed portion and second pushing portion. When the handle component is pivoted from the engaged position, the first pushing portion pushes the pressed portion so as to force the second pushing portion to push the first contact portion so that the second contact surface is forced to leave the first contact surface.

Abstract: The present disclosure relates to a method, device and computer program product for managing an application system. In the method, a backup copy is obtained for a group of data objects. A parent address of a parent backup block corresponding to the parent data object in the backup copy, a first address of a first backup block corresponding to the first data object in the backup copy, and a second address of a second backup block corresponding to the second data object in the backup copy are determined. A parent index entry, a first index entry and a second index entry are generated based the aforementioned addresses. An index for the backup copy is determined based on the parent index entry, the first index entry and the second index entry, the first index entry and the second index entry being continuous in the index.

Abstract: A testing device may receive, via a receiving port of a radio frequency (RF) frontend of the testing device, a downlink pilot signal, and may determine a phase associated with the downlink pilot signal. The testing device may transmit, via a transmitting port of the RF frontend of the testing device, an uplink pilot signal. The testing device may receive, after transmitting the uplink pilot signal, the uplink pilot signal via the receiving port of the RF frontend of the testing device. The testing device may determine, after receiving the uplink pilot signal, a phase associated with the uplink pilot signal. The testing device may adjust, based on a phase difference between the phase of the downlink pilot signal and the phase of the uplink pilot signal, one or more transmission settings of the testing device.

Abstract: This disclosure relates to a recovery method, a device, and a program product based on reverse difference recovery. In a method, a reference mapping of a user system is acquired, the reference mapping comprising a set of digest information about a set of blocks in the user system. Based on an identification of a backup copy for recovering the user system, a copy reference mapping associated with the backup copy is received from a backup storage comprising the backup copy, the copy reference mapping comprising a set of digest information about a set of blocks in the backup copy. A difference between the reference mapping and the copy reference mapping is determined. The user system is recovered to the backup copy based on the determined difference. The user system can be recovered to a designated version more effectively by the above method. A corresponding device and a corresponding computer program product are further provided.

Abstract: A testing device may receive, via a receiving port of a radio frequency (RF) frontend of the testing device, a downlink pilot signal, and may determine a phase associated with the downlink pilot signal. The testing device may transmit, via a transmitting port of the RF frontend of the testing device, an uplink pilot signal. The testing device may receive, after transmitting the uplink pilot signal, the uplink pilot signal via the receiving port of the RF frontend of the testing device. The testing device may determine, after receiving the uplink pilot signal, a phase associated with the uplink pilot signal. The testing device may adjust, based on a phase difference between the phase of the downlink pilot signal and the phase of the uplink pilot signal, one or more transmission settings of the testing device.

Abstract: A device determines a scrambling sequence for a control channel, wherein the scrambling sequence includes a first set of bit string values for a set of downlink control information (DCI) candidates associated with the control channel, and wherein the scrambling sequence is determined based on an identifier that is exclusive to the device. The device determines, based on the scrambling sequence, a correlation sequence that includes a second set of bit string values. The device identifies, based on the correlation sequence, a subset of DCI candidates of the set of DCI candidates. The device selects at least a portion of the subset of DCI candidates. The device performs one or more actions based on one or more selected DCI candidates.

Abstract: A testing device may receive, via a receiving port of a radio frequency (RF) frontend of the testing device, a downlink pilot signal, and may determine a phase associated with the downlink pilot signal. The testing device may transmit, via a transmitting port of the RF frontend of the testing device, an uplink pilot signal. The testing device may receive, after transmitting the uplink pilot signal, the uplink pilot signal via the receiving port of the RF frontend of the testing device. The testing device may determine, after receiving the uplink pilot signal, a phase associated with the uplink pilot signal. The testing device may adjust, based on a phase difference between the phase of the downlink pilot signal and the phase of the uplink pilot signal, one or more transmission settings of the testing device.

Abstract: An audio identification method and apparatus are disclosed within the technical field of audio processing technology. The audio identification solution includes obtaining an original pitch sequence of a to-be-identified audio, where the original pitch sequence is used to indicate a frequency of the to-be-identified audio at each time point. The audio identification solution further includes dividing the original pitch sequence into a plurality of pitch sub-sequences, respectively identifying the original pitch sequence and the plurality of pitch sub-sequences, and combining the identification results. In doing so, the audio identification solution obtains a final identification result by dividing a long pitch sequence into a plurality of short pitch sequences, thus respectively identifying the long pitch sequence and the plurality of short pitch sequences, and combining identification results.

Abstract: Embodiments of the present disclosure provide a method, an electronic device and a computer program product for load balance. The method comprises: determine, in a round robin period, backup quota ratios for a plurality of servers used for data backup and associated with a cloud service platform; select, based on the backup quota ratios, one server from the plurality of servers; and in response to receiving a request for backup of data from an application on the cloud service platform, cause the backup of the data from the application to the selected server. In this way, load balance for a plurality of backup servers associated with a cloud service platform is achieved.