Abstract: A sensorless control method and a system for PMSM based on Luenberger observer. The system includes a power supply circuit, a sampling circuit, a main control circuit and a drive circuit. The power supply circuit supplies power to other circuits. The sampling circuit is used to obtain the three-phase current of the motor. The main control circuit outputs the control signal to the drive circuit to run the PMSM. The present invention uses an improved method for selecting the feedback coefficient of Luenberger observer, which makes the selection of Luenberger observer feedback coefficient more convenient and effective. Moreover, it can select optimal parameters globally based on this method, leading to adaptive adjustment of feedback coefficients for better observer performance when the rotational speed influences the position of the pole of the observer.

Abstract: In one embodiment, a method comprises: establishing, by a network management device, a wireless multicast tree topology for a wireless mesh network, the wireless multicast tree topology comprising a root network device and wireless multicast hubs providing respective wireless multicast areas, the establishing including selecting each wireless multicast hub based on a corresponding location and a corresponding wireless neighbor count; and causing, by the network management device, the root network device to unicast transmit to a selected one or more of the wireless multicast hubs a multicast packet encapsulated within a unicast header, the unicast header causing the selected one or more of the wireless multicast hubs to multicast transmit the multicast packet within a corresponding one or more of the wireless multicast areas.

Abstract: In one embodiment, a method comprises: identifying, by a network management device, a location-based device group in a wireless data network comprising constrained wireless network devices, including identifying an identified subset of the constrained wireless network devices as member devices based on the member devices having respective physical locations within the location-based device group; identifying, by the network management device, a member device density for the location-based device group; setting by the network management device, for the location-based device group, a set of deployment group network parameters based on the member device density; and sending, by the network management device, the set of deployment group network parameters to the location-based device group for density-based deployment thereof by the member devices.

Abstract: Disclosed is a method of fabricating an anode for a lithium-ion battery, comprising the steps of: mixing a silicon/graphite/carbon material, one or more linear polymers, one or more conductive polymers, one or more self-healing polymers, and one or more rubber polymers to produce a slurry; coating the slurry onto a metallic member; and drying the metallic member with coated slurry to form the anode. Also disclosed is an anode and a lithium-ion battery. Also disclosed is a multi-functional polymer binder including one or more linear polymers, one or more conductive polymers, one or more self-healing polymers, and one or more rubber polymers.

Abstract: Disclosed is a method of fabricating an anode for a lithium-ion battery, including milling a mixture of nano-silicon, one or more carbonaceous materials and one or more solvents, wherein the mixture is retained as a wet slurry during milling. The mixture is carbonised to produce a silicon thinly coated with carbon (Si@C) material. Further milling occurs of a second mixture of the Si@C material, one or more graphite, one or more second carbonaceous materials and one or more second solvents, wherein the second mixture is retained as a second wet slurry during milling. The second mixture is carbonised to produce a Si@C/graphite/carbon material. The anode is formed from the Si@C/graphite/carbon material.

Abstract: In one embodiment, a method comprises: establishing, by a network management device, a wireless multicast tree topology for a wireless mesh network, the wireless multicast tree topology comprising a root network device and wireless multicast hubs providing respective wireless multicast areas, the establishing including selecting each wireless multicast hub based on a corresponding location and a corresponding wireless neighbor count; and causing, by the network management device, the root network device to unicast transmit to a selected one or more of the wireless multicast hubs a multicast packet encapsulated within a unicast header, the unicast header causing the selected one or more of the wireless multicast hubs to multicast transmit the multicast packet within a corresponding one or more of the wireless multicast areas.

Abstract: In one embodiment, a method comprises: identifying, by a network management device, a location-based device group in a wireless data network comprising constrained wireless network devices, including identifying an identified subset of the constrained wireless network devices as member devices based on the member devices having respective physical locations within the location-based device group; identifying, by the network management device, a member device density for the location-based device group; setting by the network management device, for the location-based device group, a set of deployment group network parameters based on the member device density; and sending, by the network management device, the set of deployment group network parameters to the location-based device group for density-based deployment thereof by the member devices.

Abstract: An apparatus, system, and method are disclosed for providing a client with disconnected data access to a non-relational database. A command module requests non-relational XML data from a non-relational database using an XML mapping in response to a non-relational data request. A fill module receives the non-relational XML data from the non-relational database and populates one or more data access sets with the non-relational XML data. A communications module transmits the one or more data access sets to an integration broker in communication with the integration adapter.

Abstract: Mechanisms are provided for mapping objects and object-relationships in an object-oriented programming language to a nested relational database. Entity metadata constructs for an object relational mapping framework are obtained, the entity metadata constructs mapping fields in entities of an object model to fields in a data table of the nested relational database and identifying relationships between entities in the object model. A nested relational data model of the nested relational database is obtained, the nested relational data model specifying tables and sub-tables of the nested relational database. Tables and sub-tables of the nested relational database are mapped to a plurality of separate entities of the object model. Data in the nested relational database is accessed using the plurality of separate entities. The mapping is performed without normalizing the data of the tables and sub-tables of the nested relational database to a non-nested representation.

Abstract: Mechanisms are provided for mapping objects and object-relationships in an object-oriented programming language to a nested relational database. Entity metadata constructs for an object relational mapping framework are obtained, the entity metadata constructs mapping fields in entities of an object model to fields in a data table of the nested relational database and identifying relationships between entities in the object model. A nested relational data model of the nested relational database is obtained, the nested relational data model specifying tables and sub-tables of the nested relational database. Tables and sub-tables of the nested relational database are mapped to a plurality of separate entities of the object model. Data in the nested relational database is accessed using the plurality of separate entities. The mapping is performed without normalizing the data of the tables and sub-tables of the nested relational database to a non-nested representation.

Abstract: An apparatus, system, and method are disclosed for providing a client with disconnected data access to a non-relational database. A command module requests non-relational XML data from a non-relational database using an XML mapping in response to a non-relational data request. A fill module receives the non-relational XML data from the non-relational database and populates one or more data access sets with the non-relational XML data. A communications module transmits the one or more data access sets to an integration broker in communication with the integration adapter.

Abstract: An apparatus, system, and method are disclosed for providing a client with disconnected data access to a non-relational database. A command module requests non-relational XML data from a non-relational database using an XML mapping in response to a non-relational data request. A fill module receives the non-relational XML data from the non-relational database and populates one or more data access sets with the non-relational XML data. A communications module transmits the one or more data access sets to an integration broker in communication with the integration adapter.