Abstract: The present application refers to secondary battery and battery module, battery pack and apparatus including the secondary battery. In particular, the secondary battery includes a housing as well as an electrode assembly and an electrolyte contained in the housing; the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator, and the positive electrode plate includes a positive current collector and a positive electrode film that is disposed on at least one surface of the positive electrode current collector and includes a positive electrode active material; the positive electrode active material includes one or more of lithium nickel cobalt manganese oxide and lithium nickel cobalt aluminum oxide; the negative electrode plate includes a negative electrode current collector and a negative electrode film that is disposed on at least one surface of the negative electrode current collector and includes a negative electrode active material.

Abstract: Identifying node importance in a machine learning pipeline is provided. Changes in accuracy of the machine learning pipeline are recorded for each respective node setting change in a randomly generated group of node settings inputted into each corresponding node included in the machine learning pipeline. A regression model is generated to determine a relationship between each respective node setting change in the randomly generated group of node settings inputted into each corresponding node and the changes in the accuracy of the machine learning pipeline. A node of importance is identified in the machine learning pipeline using the regression model based on the relationship between each respective node setting change in the randomly generated group of node settings inputted into each corresponding node and the changes in the accuracy of the machine learning pipeline.

Abstract: The present disclosure belongs to a field of biomedical imaging technology, and in particularly to a non-uniform excitation field-based method and system for performing a magnetic nanoparticle imaging. The present disclosure includes: separating the non-uniform excitation field into independent space and current time functions by a spatialtemporal separation method; calculating a normalized signal peak through the current time function; constructing a reconstruction mathematical model based on the normalized signal peak and an imaging subunit volume; and quantitatively reconstructing a spatial distribution of a nanoparticle by combining the normalized signal peak, a non-uniform spatial function of the excitation field and the reconstruction mathematical model, so as to achieve the magnetic nanoparticle imaging of a to-be-reconstructed object.

Abstract: The present disclosure includes: transforming a time-domain voltage signal collected by an MPI system device to a frequency domain; calculating a square root of a square sum of a real part and an imaginary part at each frequency point of a frequency domain signal; arranging acquired amplitudes in a descending order, and acquiring a screening threshold by an amplitude ratio method; screening an amplitude through the screening threshold and constructing frequency domain signal data; acquiring a row vector of a system matrix corresponding to each frequency point of the data, so as to construct an update system matrix; and solving, based on the frequency domain signal array and the update system matrix, an inverse problem in a form of a least square based on an L2 constraint to obtain a three-dimensional magnetic particle concentration distribution result, so as to achieve a fast reconstruction of the MPI system.

Abstract: A suction nozzle assembly used in manufacture for the gentlest handling of delicate components such as a camera lens includes a suction nozzle rod and a suction nozzle member. The suction nozzle rod includes a first through hole. The suction nozzle member includes a main body and a suction nozzle located on both sides of the main body. The main body includes a second through hole connected to the first through hole, and a third through hole connected to the second through hole. The suction nozzle includes at least one suction nozzle hole connected to the third through hole. The disclosure also provides a suction device having the suction nozzle assembly.

Abstract: An example method of live migration of distributed databases may include implementing a first database access mode with respect to a distributed database to be migrated from an original set of storage servers to a destination set of storage servers, wherein, in the first database access mode, database read requests are routed to the original set of storage servers and database update requests are routed to both the original set of storage servers and the destination set of storage servers. The method may further include copying a plurality of records of the distributed database from the original set of storage servers to the destination set of storage servers. The method may further include switching to a second database access mode, in which database read requests are routed to the destination set of storage servers and database update requests are routed to both the original set of storage servers and the destination set of storage servers.

Abstract: A requirements knowledge graph may include nodes for different elements of a requirement's relationship to physical characteristics, such as the requirement and the associated unsafe conditions, control objects, and hazards. A connection between nodes may define a relationship between the corresponding elements. The requirement, that is decomposed into a subject, an object, a predicate, and a context, may define a rule for the control object in the unsafe condition to avoid the hazard. A model for a plan (e.g., drilling plan for a well, design for a drilling tool) may be constructed based on the requirements knowledge graph. The plan may be generated based on the model.

Abstract: Keywords obtained from a user and/or extracted from uploaded document(s) may be used to generate potential keywords. Documents may be identified based on the keywords and the potential keywords accepted by the user. A knowledge graph model representing the identified documents may be generated. The knowledge graph model may include document nodes representing the identified document and a search node representing the keywords. The relative position of the document nodes with respect to the search node may represent similarity between the corresponding documents and the keywords.

Abstract: Multiple sets of documents for different domains may be used to train multiple domain-specific models. A graph model may be generated to include nodes representing concepts included within the domain-specific models. A white space not including any nodes within the graph model may be identified. Analysis of the white space may be performed based on two or more nodes at periphery of the white space. Words/documents that cover the white space may be generated. Novelty of concepts may be readily assessed using the graph model/white space.

Abstract: The disclosed structures and methods are directed to transmission and reception of a radio-frequency (RF) wave. An antenna comprises a stack-up structure having a first control layer, a second control layer, a first and a second parallel-plate waveguides, and a plurality of through vias. The antenna further comprises a first central port and a second central port being configured to radiate RF wave into the two parallel-plate waveguides independently; vertical-polarization peripheral radiating elements integrated with the first control layer and configured to radiate RF wave in vertical polarization; and horizontal-polarization peripheral radiating elements integrated with the second control layer and configured to radiate RF wave in horizontal polarization. A central port for transmission of RF wave into the stack-up structure of the antenna is also provided.

Abstract: The disclosed structures and methods are directed to transmission and reception of a radio-frequency (RF) wave. An antenna comprises a stack-up structure having a first control layer, a second control layer, a first and a second parallel-plate waveguides, and a plurality of through vias. The antenna further comprises a first central port and a second central port being configured to radiate RF wave into the two parallel-plate waveguides independently; vertical-polarization peripheral radiating elements integrated with the first control layer and configured to radiate RF wave in vertical polarization; and horizontal-polarization peripheral radiating elements integrated with the second control layer and configured to radiate RF wave in horizontal polarization. A central port for transmission of RF wave into the stack-up structure of the antenna is also provided.

Abstract: An embodiment provides a method, including: receiving data relating to a first command from a user; recognizing the data relating to the first command as being directed to a first user device; receiving data relating to a second command from a user; recognizing the data relating to the second command as being directed to a second user device; determining that the first user device and the second user device are to be paired with one another based on the data relating to the first command and the data relating to the second command; and pairing the first device with the second device; wherein one or more of the data relating to the first command and the data relating to the second command comprises data related to a non-touch input modality. Other aspects are described and claimed.