摘要:
An apparatus having reduced phononic coupling between a graphene monolayer and a substrate is provided. The apparatus includes an aerogel substrate and a monolayer of graphene coupled to the aerogel substrate.
摘要:
A vehicle collision detection system may be configured to coordinate with collision detection systems of other vehicles. The coordination may comprise sharing sensor data with other vehicles, receiving sensor information from other vehicles, using sensor information to generate a collision detection model, sharing the collision detection model with other vehicles, receiving a collision detection model from other vehicles, and the like. In some embodiments, vehicles may coordinate sensor operation to form a bistatic and/or multistatic sensor configuration, in which a detection signal generated at a first land vehicle is detected at a sensing system at a second land vehicle.
摘要:
A collision detection system of a land vehicle may be configured to coordinate sensor operation with one or more other sensing systems of one or more other land vehicles. The coordination may comprise configuring the other sensing systems. In some embodiments, the coordination comprises forming a multistatic sensor comprising one or more emitters and/or one or more receivers. The collision detection system may be configured to receive detection signal(s) emitted by one or more of the other sensing systems. The coordination may further comprise directing detection signals of the multistatic sensor. The collision detection system may use sensor data acquired by use of the coordinated sensing system(s) to generate a collision detection model.
摘要:
A monitoring service is configured to receive monitoring data from one or more collision detection systems. The monitoring data may comprise collision detection information, such as a collision detection model, sensor data, data pertaining to potential collisions, data pertaining to collisions, vehicle identifier(s), and so on. The monitoring service may extract and/or derive indexing criteria from the monitoring data, and may store and/or index the monitoring data on a persistent storage. An entity may request monitoring data pertaining to a specified time, location, and/or vehicle. The monitoring service may respond to the request by identifying monitoring data that conforms with the request, and providing the identified monitoring data to the requesting entity. The monitoring service may issue collision notifications to emergency service entities and/or may provide collision alerts to vehicles in the vicinity of a collision.
摘要:
An apparatus for removing harmonic noise from a power transmission line transmitting electricity at a primary frequency includes a filter and a controller coupled to the sensor and to an actuator-generator. The filter separates electricity at a harmonic of a primary frequency from the electrical signal transmitted by the power transmission line. The controller is configured to modulate consumption of electricity from the power transmission line. The consumption is controlled by electrical actuation of the actuator-generator, such that the electrical actuation of the actuator-generator causes consumption of electricity from the power transmission line at a harmonic of the primary frequency. The actuator-generator is coupled to an elastically deformable component, such that electrical actuation of the actuator-generator generates tension in the elastically deformable component.
摘要:
An energy storage apparatus for storing energy transmitted by a power transmission line includes an elastically deformable component and an actuator-generator. The actuator-generator is coupled to the elastically deformable component such that electrical actuation of the actuator-generator generates tension in the elastically deformable component. The actuator-generator is further coupled to the elastically deformable component such that mechanical actuation of the actuator-generator via a release of tension in the elastically deformable component causes a generation of electrical energy by the actuator-generator.
摘要:
A system is described generally for providing a structure or structures for altering water surface temperature. The system includes a holding vessel configured to hold water. The holding vessel has at least one wall coupled to a lowermost portion. The at least one wall extends above the water level and the lowermost portion is configured to be submerged. At least one conduit extends from the lower side of the holding vessel. The at least one conduit has a length extending to a depth at which a property of water at the depth is substantially different from that of the water at the surface.
摘要:
A method is generally described which includes environmental alteration. The method includes determining a placement of at least one vessel capable of moving water to lower depths in the water via wave induced downwelling. The method also includes placing the at least one vessel in the determined placement. Further, the method includes generating movement of the water adjacent the surface of the water in response to the placing.
摘要:
A system for altering water properties in an outdoor body of water includes a holding vessel configured to hold water. The holding vessel has at least one wall extending above a mean surface water level. The system also includes at least one conduit extending downward from the holding vessel. The at least one conduit has a length extending to a depth at which at least one property of water at the depth differs substantially from that of water at the surface. The system further includes at least one aperture formed in at least one of the holding vessel or the at least one conduit and located at a distance below the mean surface water level. Further still, the system includes at least one one way valve coupled to the at least one aperture and allowing flow of water in only one direction.
摘要:
A structure described generally for altering one or more properties within a body of water includes a vessel configured to hold water. The vessel may have at least one wall. The at least one wall extends at least above a mean surface water level. At least one conduit extends downward from the holding vessel. The at least one conduit has a length that extends below the surface of the water. A propulsion system may be coupled to at least one of the vessel or the conduit and may be configured to provide forces to the vessel.