Abstract:
A system, apparatus and method are provided for testing a secondary servo control circuit in a redundant control configuration. A first circuit is configured to receive a control signal and to control an attribute of an actuator based on the control signal using a first control input of the actuator. A second circuit is configured to test operation of an actuator circuit using a test signal. The actuator circuit includes at least part of the second circuit and a second control input of the actuator. The test signal is selected to avoid causing independent motion of the actuator. The actuator could be a dual coil servo valve, and the test signal could be a current (such as a DC current, an AC current, or a pulsed current) having a magnitude less than a bias current of the actuator.
Abstract:
A system, apparatus and method are provided for testing a secondary servo control circuit in a redundant control configuration. A first circuit is configured to receive a control signal and to control an attribute of an actuator based on the control signal using a first control input of the actuator. A second circuit is configured to test operation of an actuator circuit using a test signal. The actuator circuit includes at least part of the second circuit and a second control input of the actuator. The test signal is selected to avoid causing independent motion of the actuator. The actuator could be a dual coil servo valve, and the test signal could be a current (such as a DC current, an AC current, or a pulsed current) having a magnitude less than a bias current of the actuator.
Abstract:
Subject matter disclosed herein relates to a system for managing online resources, and in particular, to a system using an offline process to optimize the management of such online resources.
Abstract:
Embodiments of the present invention provide for methods, systems and computer program products for utilizing a lattice structure in an advertisement serving system. The method according to one embodiment of the present invention comprises storing one or more advertisement contracts in a lattice structure. A request for one or more advertisements that satisfy one or more constraints is then received and within the lattice structure, a lowest level of one or more pools of advertisement contracts satisfying the one ore more constraints is located. A set of advertisement contracts is generated, wherein the set of advertisement contracts comprise one or more advertisement contracts from lowest level of the lattice structure. The method further comprises adding to the set of advertisement contracts advertisement contracts from the pools of advertisement contracts that are parent to the pools of contracts in the lowest level of the lattice structure.
Abstract:
A method and system for allocating inventory in an Internet environment is provided. A method employed by the system may include generating several inventory pools, where each inventory pool represents a number of impressions deliverable to different groups of users characterized by attributes. Impressions deliverable to users represented by each inventory pool may be allocated to each inventory pool. Impressions that correspond to multiple pools may be distributed between the multiple pools. The inventory pools may be stored to a database. Afterwards, and order may be received. The order may include parameters that define an audience and a number of impressions. The number of impressions in the order may be allocated from pools in the database.
Abstract:
Example embodiments described herein may relate to estimating inventory for a display advertising system utilized, for example, in Web-based advertising.
Abstract:
A method and apparatus for producing ultrafine metal powders in which a laser beam is focused on the surface of a workpiece or feedstock and moved thereacross so as to create a cavity within the workpiece through melting and vaporization that contains the metal melted to form the cavity. A subsonic pulsating blast of inert gas is directed at the cavity to atomize the molten metal, rapidly cool the resulting droplets, and transport the droplets to a collection area. The cavity formed by the laser beam is a "keyhole" of deep cavity having a depth approximately three to four times greater than its width. The focal point of the laser beam is moved across the workpiece at a rate from approximately 50 to 80 inches per minute to ensure that the molten metal remains in the cavity prior to the gas atomization.Alloy metal powders can be produced by this method of laser blast atomization providing an alloying metal at the base metal where the cavity is formed so that, upon melting of the base metal, the alloy metal will melt into solution with the molten base metal in the cavity prior to gas atomization. Additionally, nonmetallic impurities may be removed from the molten metal contained within the cavity formed by the laser beam by vaporization.
Abstract:
An improved system and method for forecasting an inventory of online advertisement impressions by sampling in a map-reduce framework is provided. In a map-reduce framework, samples of visitor profiles may be collected and matched to targeting profiles for displaying advertisements by distributed sample mappers. Sets of samples of visitor profiles matched to the targeting profiles may be mapped and distributed to reducer servers for integrating the samples collected by sample mappers into a reduction sample set for each targeting profile. Each reducer server may aggregate a count of samples of visitor profiles matched to a targeting profile, and the sets of samples of visitor profiles matched to a targeting profile may be integrated into a reduction sample set for each targeting profile. The sample reducers may forecast a targeting profile inventory for each targeting profile and output the targeting profile inventory with a reduction sample set of visitor profiles.
Abstract:
A parallel operation keyboard (POK) which enables a user to provide multiple inputs simultaneously in managing a process control plant. A lock is provided to disable such simultaneous inputs. In an embodiment, multiple groups of keys are provided, with each group of keys being operable independently to modify the parameter value of a corresponding control loop. A network management station (NMS) and a server are designed to provide a suitable interface. In one implementation, each group of keys contains four keys respectively specifying increasing the parameter value, decreasing the parameter value, manual mode (in which the present level of the variable is controlled by the increase/decrease keys) and normal mode (in which the set point, i.e., the desired value, for the variable is controlled).
Abstract:
A method and system for allocating inventory in an Internet environment is provided. A method employed by the system may include generating an inventory pool that represents a number of impressions deliverable to all users, then determining, from multiple past orders for booking impressions, a hierarchy of parameters utilized to target users and a number of impressions deliverable to users characterized by the parameters. The inventory pool may then be partitioned into multiple inventory pools according to the hierarchy, where each inventory pool represents a number of impressions deliverable to users characterized by parameters associated with the inventory pool. The hierarchy of pools may then be stored to a database.