Abstract: The present disclosure relates to an annotation data determination method and apparatus, and a readable medium and an electronic device. By means of the present disclosure, high-quality data to be annotated is obtained for model performance evaluation.

Abstract: The invention relates to a concealed door handle and a vehicle. The concealed door handle comprises: a handle body; a handle base fixed in a body of a vehicle, the handle body being concealed in the handle base, and the handle body being rotatably connected to the handle base; and a deployment microswitch arranged on the handle base and configured to detect a deployed position of the handle body and to maintain communication with a vehicle control module, wherein when the deployment microswitch jumps from a triggered state into an untriggered state, the deployment microswitch sends an input signal for unlocking an electronic lock to the vehicle control module. The concealed door handle of the invention has a simple structure and low costs, and a signal source can be arranged in a limited structural space.

Abstract: The invention relates to a concealed door handle and a vehicle. The concealed door handle comprises: a handle body; a handle base fixed in a body of a vehicle, the handle body being concealed in the handle base, and the handle body being rotatably connected to the handle base; and a deployment microswitch arranged on the handle base and configured to detect a deployed position of the handle body and to maintain communication with a vehicle control module, wherein when the deployment microswitch jumps from a triggered state into an untriggered state, the deployment microswitch sends an input signal for unlocking an electronic lock to the vehicle control module. The concealed door handle of the invention has a simple structure and low costs, and a signal source can be arranged in a limited structural space.

Abstract: A data table partitioning management method and apparatus are disclosed. The method includes: determining a type and a join key of each data table in a table group, where the type of the data table includes a one-dimensional table, a multidimensional table, or a fact table; and performing one-dimensional partitioning on row replica space of each data table in the table group, and performing one-dimensional or multidimensional partitioning on column replica space of the data table according to the type of the data table and based on the join key of the data table. Different partitioning management methods are applied to data tables of different types and different dimensions, so that data processing mechanisms of OLTP and OLAP are efficiently implemented in a system, and resource consumption is reduced.

Abstract: The present application discloses a membrane element and a filter cartridge, wherein the membrane element comprises: a water collecting pipe; and a first membrane unit and a second membrane unit rolled on the water collecting pipe together, a waste water outlet of the first membrane unit being in communication with a raw water inlet of the second membrane unit, the waste water outlet of the first membrane unit and the raw water inlet of the second membrane unit being located a same side edge corresponding thereto when the first membrane unit and the second membrane unit are in an unrolled state. The first membrane unit and the second membrane unit may be rolled on the water collecting pipe together at one time.

Abstract: A method for partitioning an association table in a distributed database, where a manager determines a first data table in data tables requiring partition and generates a colocation partition (CP) table set of the first data table, the CP table set of the first data table includes the first data table and at least one CP table of the first data table, and a CP table of the first data table includes a data table whose partition key includes a subset of a partition key of the first data table. The manager partitions the first data table according to the partition key and partitions each CP table in the CP table set, a partition range of a partition key of each CP table is the same as a partition range of a corresponding partition key in the first data table.

Abstract: Disclosed are a distributed storage system, a cluster node, and a range management method thereof, including: partitioning, by the cluster node according to a configuration parameter, a range corresponding to a first routing table entry in a local routing table into at least two subranges, where the first routing table entry refers to a routing table entry in which information that indicates the cluster node is recorded in replica information; separately establishing, by the cluster node, a log queue for each of the subranges; determining, by the cluster node, a corresponding subrange according to a key field of a data operation request from a client; executing a corresponding data read/write operation according to the determined subrange; and updating, according to the data read/write operation, a log queue corresponding to the determined subrange.

Abstract: The present invention discloses a device for Fenton fluidized-bed process and a method applying the device for wastewater treatment. It belongs to the wastewater treatment field. The device comprises an adjusting tank, a lift pump and a main reaction column.

Abstract: A data table partitioning management method and apparatus are disclosed. The method includes: determining a type and a join key of each data table in a table group, where the type of the data table includes a one-dimensional table, a multidimensional table, or a fact table; and performing one-dimensional partitioning on row replica space of each data table in the table group, and performing one-dimensional or multidimensional partitioning on column replica space of the data table according to the type of the data table and based on the join key of the data table. Different partitioning management methods are applied to data tables of different types and different dimensions, so that data processing mechanisms of OLTP and OLAP are efficiently implemented in a system, and resource consumption is reduced.

Abstract: A method for partitioning an association table in a distributed database, where a manager determines a first data table in data tables requiring partition and generates a colocation partition (CP) table set of the first data table, the CP table set of the first data table includes the first data table and at least one CP table of the first data table, and a CP table of the first data table includes a data table whose partition key includes a subset of a partition key of the first data table. The manager partitions the first data table according to the partition key and partitions each CP table in the CP table set, a partition range of a partition key of each CP table is the same as a partition range of a corresponding partition key in the first data table.

Abstract: Implementations herein relate to methods for reducing a desorption solution for regeneration of ion exchange resins in the field of regeneration of resins. The implementations solve problems related to low utilization rates of regeneration agents and high volumes of desorption solutions during the desorption process. The implementations include regenerating the ion exchange resins, and the regeneration solution becomes the desorption solution. After coagulating sedimentation of the desorption solution and slurry separation, a large amount of organic contents are removed from coagulation serum and a large amount of regenerate agents are left. The implementations further include adding the regeneration agent to the coagulation serum to form new or refreshed regeneration solution to regenerate the ion exchange resins. Accordingly, the coagulation serum may be generated from the desorption solution. These operations may be repeated multiple batches for resin regeneration.

Abstract: The present invention discloses a device for Fenton fluidized-bed process and a method applying the device for wastewater treatment. It belongs to the wastewater treatment field. The device comprises an adjusting tank, a lift pump and a main reaction column.

Abstract: An electronic expansion valve includes a valve component for adjusting the flow of fluid. The valve component includes a valve body, a valve seat provided in the valve body, a valve needle able to open and close the valve seat, an actuating mechanism driving the axial movement of the valve needle and a drive mechanism supplying the actuating mechanism with motive power. The actuating mechanism includes a spindle able to move axially. The electronic expansion valve further includes an electromagnetic retaining mechanism for retaining the spindle. The valve is constructed such that when electricity is supplied to the electromagnetic retaining mechanism, the spindle is retained in a first axial position where the valve needle can adjust the opening degree of the valve seat; when the electricity to the electromagnetic retaining mechanism is cut, the spindle is released into a second axial position where the valve needle closes the valve seat.

Abstract: Implementations herein relate to methods for reducing a desorption solution for regeneration of ion exchange resins in the field of regeneration of resins. The implementations solve problems related to low utilization rates of regeneration agents and high volumes of desorption solutions during the desorption process. The implementations include regenerating the ion exchange resins, and the regeneration solution becomes the desorption solution. After coagulating sedimentation of the desorption solution and slurry separation, a large amount of organic contents are removed from coagulation serum and a large amount of regenerate agents are left. The implementations further include adding the regeneration agent to the coagulation serum to form new or refreshed regeneration solution to regenerate the ion exchange resins. Accordingly, the coagulation serum may be generated from the desorption solution. These operations may be repeated multiple batches for resin regeneration.

Abstract: Disclosed are a distributed storage system, a cluster node, and a range management method thereof, including: partitioning, by the cluster node according to a configuration parameter, a range corresponding to a first routing table entry in a local routing table into at least two subranges, where the first routing table entry refers to a routing table entry in which information that indicates the cluster node is recorded in replica information; separately establishing, by the cluster node, a log queue for each of the subranges; determining, by the cluster node, a corresponding subrange according to a key field of a data operation request from a client; executing a corresponding data read/write operation according to the determined subrange; and updating, according to the data read/write operation, a log queue corresponding to the determined subrange.

Abstract: A data synchronization method, a data synchronization apparatus, and a distributed system are disclosed. A management node acquires a route update message that instructs to update routing information of the first data center and the second data center, where the routing information includes at least identification information of the first data center and the second data center, and backup routing information of nodes in the first data center and the second data center; the management node adjusts the routing information of the first data center and the second data center according to the route update message; and the management node synchronizes adjusted routing information of the first data center and the second data center to the first data center and the second data center, so that the first data center and the second data center perform, based on the adjusted routing information, synchronous transmission on data of managed nodes.

Abstract: An electronic expansion valve includes a valve component for adjusting the flow of fluid. The valve component includes a valve body, a valve seat provided in the valve body, a valve needle able to open and close the valve seat, an actuating mechanism driving the axial movement of the valve needle and a drive mechanism supplying the actuating mechanism with motive power. The actuating mechanism includes a spindle able to move axially. The electronic expansion valve further includes an electromagnetic retaining mechanism for retaining the spindle. The valve is constructed such that when electricity is supplied to the electromagnetic retaining mechanism, the spindle is retained in a first axial position where the valve needle can adjust the opening degree of the valve seat; when the electricity to the electromagnetic retaining mechanism is cut, the spindle is released into a second axial position where the valve needle closes the valve seat.

Abstract: According to the present invention, methods and apparatus for updating reduction ratios are provided. An input bit sequence can be altered to provide modified output bit sequence. The input bit sequence may represent information in a portion of data such as a video sequence, a picture, or an audio stream. In one example, the bit sequence is an MPEG-2 video sequence. The input bit sequence is altered using a reduction ratio to provide a modified output bit sequence. The reduction ratio can be continually updated using rate control information to achieve a target reduction ratio for the input bit sequence.

Abstract: A mobile phone includes an alphanumeric keypad on a first portion of a front surface thereof and including keys arranged in rows and columns; a direction key on a second portion of the front surface thereof; and a display on a third portion of the front surface thereof, wherein the keys of the keypad have an uneven surface so that dialing by touching the keys can be made, for example, in a dark environment or while driving. In one embodiment, the first portion is an upper portion of the front surface of the mobile phone, and the third portion is a lower portion of the front surface thereof. In another embodiment, the first portion is a lower portion of the front surface of the mobile phone, and the third portion is an upper portion of the front surface thereof.

Abstract: According to the present invention, methods and apparatus for filtering transform coefficients are provided. Transform coefficients associated with an input bit sequence can be zeroed to provide modified transform coefficients associated with an output bit sequence. The transform coefficients may represent information in a portion of data such as a video frame, a picture, or an audio stream. In one example, the transform coefficients are DCT coefficients of an MPEG-2 video sequence. The transform coefficients are filtered to provide modified transform coefficients associated with an output bit sequence. The output bit sequence is a rescaled version of the input bit sequence.