Abstract: Provided are catechol nanoparticles, catechol protein nanoparticles, and a preparation method and use thereof. The method includes: adding a tannin compound-containing natural herb medicine into water to obtain a mixture, and subjecting the mixture to heating reflux extraction to obtain a herb medicine extract and subjecting the herb medicine extract to fractionation to obtain the catechol nanoparticles.

Abstract: An electric motor includes an end turn ring and a cooling structure that is in a thermally conductive relationship with the end turn ring.

Abstract: A data processing method includes: pulling full data regularly in accordance with a predetermined time, partitioning a DFS by date, and storing the full data in a corresponding partition of the DFS; filtering through the full data to obtain incremental data, sorting the incremental data, and storing the sorted data in a dimension table and an event table of a data warehouse detail layer, the dimension table being associated with the event table through a surrogate key; and associating the dimension table with the event table to generate a report, generating an aggregate table in accordance with a predetermined aggregation demand, and storing the generated aggregate table at a reporting layer.

Abstract: An antenna assembly includes a first magnetic dipole antenna and a first electric dipole antenna, where a radiator of the first electric dipole antenna and a radiator of the first magnetic dipole antenna are connected to a first feed point, and the radiator of the first magnetic dipole antenna is perpendicular to the radiator of the first electric dipole antenna. The radiator of the first electric dipole antenna has a second feed point, and on the radiator of the first electric dipole antenna, the first feed point is connected to the second feed point.

Abstract: Provided are a data analysis method, a data analysis apparatus and a device. The method includes: obtaining historical event information recording a target event, the historical event information including a user related to the target event and state information of the recorded target event; obtaining a user information table and an event recording table according to the historical event information; after reading collected data, which were recorded according to users' performance of the target event, determining a second target user corresponding to the target event of which the state information is the target state in the collected data, and not recorded in the user information table; and adding the second target user to the user information table, and writing the target event of the second target user into the event recording table according to the collected data.

Abstract: A data processing method includes: pulling full data regularly in accordance with a predetermined time, partitioning a DFS by date, and storing the full data in a corresponding partition of the DFS; filtering through the full data to obtain incremental data, sorting the incremental data, and storing the sorted data in a dimension table and an event table of a data warehouse detail layer, the dimension table being associated with the event table through a surrogate key; and associating the dimension table with the event table to generate a report, generating an aggregate table in accordance with a predetermined aggregation demand, and storing the generated aggregate table at a reporting layer.

Abstract: An electric motor includes an end turn ring and a cooling structure that is in a thermally conductive relationship with the end turn ring.

Abstract: An electric motor includes a configuration that directs at least a portion of an electric field generated by phase windings into a stator.

Abstract: An electric motor includes an end turn ring and a cooling structure that is in a thermally conductive relationship with the end turn ring.

Abstract: An electric motor includes a configuration that directs at least a portion of an electric field generated by phase windings into a stator.

Abstract: An electric machine system includes an electric motor. The electric motor includes a stator having a plurality of windings that define a number of phases. A plurality of switch members are operatively coupled to the plurality of windings. The plurality of switch members are no more than one less than three times the number of phases. A controller is operatively coupled to the plurality of switch members. The controller selectively changes a state of the plurality of switch members to establish one of a first electrical connection configuration of the plurality of windings and a second electrical connection configuration of the plurality of windings.

Abstract: An electric machine includes a stator, and a rotor lamination assembly configured and disposed to rotate relative to the stator. The rotor lamination assembly includes at least one lamination member including a body member having an outer diametric edge, and at least one magnet receiving member. The at least one magnet receiving member includes a first end that extends to a second end. The second end establishes an interruption zone in the outer diametric edge.

Abstract: An electric machine includes a stator, and a rotor lamination assembly configured to rotate relative to the stator. The rotor assembly includes at least one lamination member that includes a body having an inner diametric edge that extends to an outer diametric edge, and at least one magnet receiving member. The at least one magnet receiving member is formed in the body and includes a first end that extends to a second end. The second end is spaced from the outer diametric edge to form a bridge portion. The at least one lamination member includes at least one stress concentration element positioned between the inner diametric edge and the outer diametric edge. The at least one stress concentration element is configured and disposed to reduce stress in the bridge portion.