摘要:
A gear rescue system is configured to attach to gear in water and to deploy when a deployment water pressure is reached. The gear rescue system includes an upper housing mechanically coupled to a lower housing and an upper cap. A line spool is housed within the upper housing with some line extending through the lower housing and attached to a locking attachment ring. The locking attachment ring is attached to the gear. A blow out plug is detachably coupled to the lower housing and configured to blow out when the deployment water pressure is reached. When he gear pulls the gear rescue system to the deployment water pressure, the blow out plug enters into the lower housing causing the line spool to deploy line enabling the gear rescue system to rise to a surface of the water.
摘要:
A stoker device including: a ladder conveyor having legs extending over a bed and a channel, a yoke connecting a rear portion the legs; a beam assembly fixed to the bed and coupling the yoke to a reciprocating drive, wherein the beam assembly an anchor attached to the bed on one side of the channel, a brace beam attached to the anchor and extending over the channel, and a front beam on an opposite side of the channel to the anchor.
摘要:
This invention is a method and supporting apparatus for autonomously capturing, servicing and de-orbiting a free-flying spacecraft, such as a satellite, using robotics. The capture of the spacecraft includes the steps of optically seeking and ranging the satellite using LIDAR; and matching tumble rates, rendezvousing and berthing with the satellite. Servicing of the spacecraft may be done using supervised autonomy, which is allowing a robot to execute a sequence of instructions without intervention from a remote human-occupied location. These instructions may be packaged at the remote station in a script and uplinked to the robot for execution upon remote command giving authority to proceed. Alternately, the instructions may be generated by Artificial Intelligence (AI) logic onboard the robot. In either case, the remote operator maintains the ability to abort an instruction or script at any time, as well as the ability to intervene using manual override to teleoperate the robot. In one embodiment, a vehicle used for carrying out the method of this invention comprises an ejection module, which includes the robot, and a de-orbit module. Once servicing is completed by the robot, the ejection module separates from the de-orbit module, leaving the de-orbit module attached to the satellite for de-orbiting the same at a future time. Upon separation, the ejection module can either de-orbit itself or rendezvous with another satellite for servicing. The ability to de-orbit a spacecraft further allows the opportunity to direct the landing of the spent satellite in a safe location away from population centers, such as the ocean.
摘要:
An optical system for a multidetector array spectrophotometer which includes multiple light sources for emitting light of selected wavelength ranges and means for selectively transmitting the selected wavelength ranges of light to respective slits of a multi-slit spectrograph for multiple wavelength range detection. The spectrograph has two or more slits which direct the selected wavelength ranges of the light spectra to fall upon a dispersive and focusing system which collects light from each slit, disperses the light by wavelength and refocuses the light at the positions of a single set of detectors.
摘要:
Techniques are described for detecting use of a network access node by multiple users to gain access to a network. Packets are received from a network device in communication with the network access node. The packets are evaluated with reference to a plurality of metrics. Each of the metrics is independently representative of an estimated number of user devices from which the packets originate.
摘要:
A method is provided for sizing a brake system for an automobile using a processor. The method comprises gathering characteristics of the automobile and then calculating a maximum rotor size based the characteristics. Next, a specific torque required to skid the automobile at a selected deceleration is calculated for the brake system at driver only weight, and then a final brake caliper is selected based on the specific torque requirement and maximum brake rotor size. Finally, the selected rotor and brake caliper is evaluated to determine if thermal dissipation requirements for city driving conditions are met.
摘要:
A system provides an environment for parallel programming by providing a plurality of modular parallelizable operators stored in a computer readable memory. Each operator defines operation programming for performing an operation, one or more communication ports, each of which is either an input port for providing the operation programming a data stream of records, or an output port for receiving a data stream of records from the operation programming and an indication for each of the operator's input ports, if any, of a partitioning method to be applied to the data stream supplied to the input port. An interface enables users to define a data flow graph by giving instructions to select a specific one of the operators for inclusion in the graph, or instructions to select a specific data object, which is capable of supplying or receiving a data stream of one or more records, for inclusion in the graph, or instructions to associate a data link with a specific communication port of an operator in the graph, which data link defines a path for the communication of a data stream of one or more records between its associated communications port and either a specific data object or the specific communication port of another specific operator in said graph. The execution of a data flow graph equivalent to that defined by the users is automatically parallelized by causing a separate instance of each such operator, including its associated operation programming, to be run on each of multiple processors, with each instance of a given operator having a corresponding input and output port for each input and output port of the given operator, and by automatically partitioning the data stream supplied to the corresponding inputs of the instances of a given operator as a function of the partitioning method indication for the given operator's corresponding input.
摘要:
A computer-based test creation system and method for generating test items. The test creation process includes creating items in electronic form and allowing access by a plurality of reviewers via a network. The reviewers may review the item for content, fairness and format, and collaborate with each other before indicating that the item is acceptable for inclusion in a test. After the administration of the items to test takers, item performance may be evaluated on-line by reviewing electronic feedback from the administrations and creating electronic evaluation reports. Since the items are created in an electronic form, the items may further include new forms of stimuli such as graphics and multimedia.
摘要:
An erosion prevention device, comprising a concrete block having a top surface and a substantially flat bottom surface, current reduction flaps each having top and bottom portions, the concrete block having openings formed in the top surface for receiving the bottom portions of the current reduction flaps, and means for retaining the bottom portions in the openings.
摘要:
A computer-based test creation system and method for generating test items. The test creation process includes creating items in electronic form and allowing access by a plurality of reviewers via a network. The reviewers may review the item for content, fairness and format, and collaborate with each other before indicating that the item is acceptable for inclusion in a test. After the administration of the items to test takers, item performance may be evaluated on-line by reviewing electronic feedback from the administrations and creating electronic evaluation reports. Since the items are created in an electronic form, the items may further include new forms of stimuli such as graphics and multimedia.