Abstract: An event processor identifies events generated by an entity from a hostname website cluster and other third party websites. The event processor may generate a website cluster interest score based on the events indicating an interest level of the entity in multiple hostname websites, belonging to first party. The event processor also may identify a topic cluster including multiple topics and generate a topic cluster interest score indicating an interest level of the entity in the topics. The event processor may generate a buyer intent score based on the website interest score and the topic cluster interest score. The buyer intent score may provide a good indication of when the entity is interested in buying items from the party associated with the hostname website.

Abstract: The present invention provides an apparatus and computer implemented methods of modelling a hydraulically driven fracture. A computer implemented method of modelling a hydraulically driven fracture comprises predicting the direction and the geometry of a fracture using a finite element method, and inserting a new fracture into the model using a geometric insertion technique.

Abstract: A distributed propulsion system is described that includes at least one turbine engine including an engine shaft and at least one mechanically driven propulsor, wherein a propulsor shaft of the at least one mechanically driven propulsor is not co-axial with the engine shaft of the at least one turbine engine and is driven by the engine shaft of the at least one turbine engine. The distributed propulsion system further includes at least one generator driven by rotation of at least one of the engine shaft of the at least one turbine engine or the propulsor shaft of the at least one mechanically driven propulsor. The distributed propulsion system also includes at least one electrically driven propulsor, wherein a propulsor motor of the at least one electrically driven propulsor drives a propulsor fan of the at least one electrically driven propulsor based on electricity produced by the at least one generator.

Abstract: A system is described that includes a turbine engine including an engine fan including one or more variable-pitch blades driven by a shaft, which rotates at a rotational speed which depends on a pitch of the one or more variable-pitch blades of the engine fan. The system further includes a generator configured to produce alternating-current (AC) electricity at a particular frequency relative to the rotational speed of the shaft. The system also includes a propulsor, which includes a propulsor motor and a propulsor fan. The propulsor motor is configured to drive, based on the AC electricity produced by the generator, the propulsor fan. The system includes a controller configured to control the particular frequency of the AC electricity by at least controlling the pitch of the one or more variable-pitch blades of the engine fan and thereby the rotational speed of the generator.

Abstract: A propulsion system is described that includes an AC generator configured to produce AC current, and a plurality of propulsors configured to receive the AC current from the AC generator and provide thrust based on the AC current from the AC generator. The propulsion system further includes an AC distribution system configured to deliver a first portion of the AC current to a first group of propulsors from the plurality of propulsors, and a second subsystem configured to deliver a second portion of the AC current to a second group of propulsors from the plurality of propulsors.

Abstract: An integrated circuit for adaptively maintaining a communications link during an idle mode is disclosed. The integrated circuit may operate in a first (active) mode and a second (idle) mode. The integrated circuit includes a transceiver circuit that establishes a communications link with an additional transceiver circuit of an external integrated circuit. The transceiver circuit may receive data packets from the additional transceiver circuit during the first mode. The integrated circuit further includes monitoring circuitry that monitors a health metric associated with maintaining the communications link between the transceiver circuit and the additional transceiver circuit during the second mode. A control circuit may generate keep-alive signals and adaptively adjusts the frequency of the keep-alive signals such that the health metric is satisfied.

Abstract: An electric propulsion system is described that includes an AC drive circuit, a synchronization circuit, and a control unit. The AC drive circuit includes a plurality of propulsor motors, an AC power bus, and an AC generator that delivers AC electrical power to the AC power bus for simultaneously driving the plurality of propulsor motors. The synchronization circuit is configured to synchronize, with the AC generator, single propulsor motor from the plurality of propulsor motors, at a time. The control unit is configured to maintain synchronicity between the single propulsor motor and the AC generator by engaging the synchronization circuit with the single propulsor motor in response to determining that the single propulsor motor is not synchronized with the AC generator.

Abstract: A distributed model generation system includes a master node that estimates parameter sets for a topic classification (TC) model. The estimated parameter sets are loaded into a queue. Multiple training nodes download the estimated parameter sets from the queue for training associated TC models. The training nodes generate model performance values for the trained TC models and send the model performance values back to the master node. The master node uses the model performance values and the associated parameter sets to estimate additional TC model parameter sets. The master node estimates new parameter sets until a desired model performance value is obtained. The master node may use a Bayesian optimization to more efficiently estimate the parameter sets and may distribute the high processing demands of model training and testing operations to the training nodes.

Abstract: A superconducting magnetic energy storage (SMES) device having a plurality of interwoven windings provides for alternative discharge paths for energy stored as magnetic fields in the windings in response to an open-circuit winding fault in one of the windings.

Abstract: A gas turbine engine may include a deep heat recovery system, such as a deep heat recovery super critical carbon dioxide (sCO2) system. The deep heat recovery system may include two-stage cooling of the working fluid (such as carbon dioxide—CO2) where at least one of cooling stages is recuperative by transferring heat from the working fluid to a flow of compressed air being supplied to a combustor included in the gas turbine engine. The deep heat recovery system may operate in a supercritical cycle, or in a transcritical cycle depending on the temperature to which the working fluid is cooled during a second stage of the two-stage cooling. The second stage of the two-stage cooling includes working fluid-to-air heat rejection where the air is ambient air.

Abstract: A system includes at least one compressor, at least two turbines, and at least two combustors, each fluidically coupled to a respective turbine of the at least two turbines and configured to receive compressed fluid from the at least one compressor. The system further includes at least two motor-generators, each operably coupled to a respective turbine of the at least two turbines and configured to convert electrical energy to mechanical energy to drive a respective propulsor to which the respective motor-generator is operably coupled and to convert mechanical energy from the respective turbine to electrical energy. The system further includes at least two propulsors, each operably coupled to a respective turbine of the at least two turbines and configured to be driven by the respective turbine, a respective motor-generator to which the respective propulsor is operably coupled via the respective turbine, or both the respective turbine and the respective motor-generator.

Abstract: The disclosure is directed to an optionally hybrid power system that may operate either as a traditional power system, deriving power from a single power source, or as a hybrid power system, deriving power from multiple types of power sources. An example optionally hybrid power system may include a gas turbine engine and one or more electric motors. When configured as a traditional power system the optionally hybrid power system may derive all power from the gas turbine engine. However, when configured as a hybrid power system, the one or more motors may be coupled to the optionally hybrid power system to supplement the power produced by the gas turbine engine. Additionally, an operator interface that may control the optionally hybrid power system may select from a plurality of operating modes that depend on the configuration of the optionally hybrid power system.

Abstract: A propulsion system is described that includes an electrical bus, a generator configured to provide electrical power to the electrical bus, a plurality of propulsory configured to provide thrust by simultaneously being driven by the electrical power at the electrical bus, and a controller. The controller is configured to synchronize a rotational speed of an individual propulsor from the plurality of propulsory with a rotational speed of the generator after the individual propulsor has become unsynchronized with the rotational speed of the generator by controlling at least one of the rotational speed of the generator, nozzle area of the individual propulsor, or a pitch angle of the individual propulsor.

Abstract: A method comprises: sending, to a client, data specifying a plurality of commands for use in producing a design; receiving, from the client, one of the plurality of commands, wherein the received command is for creating or modifying a new or existing element of the design, respectively; updating a data structure associated with the design in accordance with the command, wherein the update comprises adding or modifying data associated with the new or existing element, respectively; and sending, to the client, data for enabling the new or modified element to be represented via a user interface.

Abstract: A sectional planter is provided with an interior volume defining a planter portion with a flange and a tongue and groove for positively connecting the sectional planter to at least one additional sectional planter, where the tongue and groove connection allows for easy removal of the sectional planter from the base of a tree or post after assembly. The sectional planter can hold a variety of plants, shrubs, bushes or other floral or decorative items. The sectional planter may be combined with one or more additional sectional planters to form a geometric shaped planter. The geometric shapes formed with two or more interconnected sectional planters may be a circle, an oval, a square, a star pattern, a rectangle, a triangle, a trapezoid, or a parallelogram. In at least one embodiment two or more sectional planters are combined to form to encircle a tree.

Abstract: An electric propulsion system is described that includes an AC drive circuit, a synchronization circuit, and a control unit. The AC drive circuit includes a plurality of propulsor motors, an AC power bus, and an AC generator that delivers AC electrical power to the AC power bus for simultaneously driving the plurality of propulsor motors. The synchronization circuit is configured to synchronize, with the AC generator, single propulsor motor from the plurality of propulsor motors, at a time. The control unit is configured to maintain synchronicity between the single propulsor motor and the AC generator by engaging the synchronization circuit with the single propulsor motor in response to determining that the single propulsor motor is not synchronized with the AC generator.

Abstract: An alternating current type electric propulsion system is described that includes an AC generator and a plurality of propulsors electrically coupled to the AC generator. A first propulsor from the plurality of propulsors includes a first motor that drives a first fan of the first propulsor at a first speed. A second propulsor from the plurality of propulsors comprises a second motor that drives a second fan of the second propulsor at a second speed that is different than the first speed.

Abstract: An electric propulsion system is described that includes at least one branch for distributing electrical power, provided by a power source, to one or more loads. The at least one branch is partitioned into one or more zones and comprises a plurality of branch isolation devices that are configured to isolate the at least one branch from the power source in response to a fault current at the at least one branch. In addition, the at least one branch comprises a respective pair of zone isolation devices for each respective zone from the one or more zones. The respective pair of zone isolation devices for each respective zone is configured to isolate the respective zone from the at least one branch, during a test of the at least one branch for identifying which of the one or more zones is a source of the fault current.

Abstract: A superconducting magnetic energy storage (SMES) device including a toroidal housing and a coil. The toroidal housing is configured to store a cryogenic fluid that cools the SMES to a superconducting state. The coil is configured to be in the superconducting state from cooling from the cryogenic fluid. The coil is also configured to store power for delivery to one or more external devices.