摘要:
A performance measure (e.g., processor speed) for computing components such as servers is optimized by creating models of power consumption versus the performance measure for each server, adding the power models to derive an overall power model, and calculating an optimum set point for the performance measure which corresponds to a power limit on the servers using the overall power model. The set point is then used to set power budgets for the servers based on their power models, and the servers maintain power levels no greater than their respective power budgets. The server power models are preferably created in real time by monitoring power consumption and the performance measure to derive sets of data points for the servers, and performing regression on the sets of data points to yield power models for the servers. Multiple server power models may be created for different program applications.
摘要:
A performance measure (e.g., processor speed) for computing components such as servers is optimized by creating models of power consumption versus the performance measure for each server, adding the power models to derive an overall power model, and calculating an optimum set point for the performance measure which corresponds to a power limit on the servers using the overall power model. The set point is then used to set power budgets for the servers based on their power models, and the servers maintain power levels no greater than their respective power budgets. The server power models are preferably created in real time by monitoring power consumption and the performance measure to derive sets of data points for the servers, and performing regression on the sets of data points to yield power models for the servers. Multiple server power models may be created for different program applications.
摘要:
A self-propelled cleaning apparatus for cleaning a submerged surface of a pool or tank includes a housing having a front portion as defined by the direction of movement of the apparatus when propelled by a water jet, an opposing rear portion and adjoining side portions defining the periphery of the apparatus, and a baseplate with at least one water inlet. Rotationally-mounted supports are coupled proximate the front and rear portions of the housing to enable movement of the apparatus over the submerged surface. A water pump is configured to draw water and debris from the pool through the inlet for filtering. A stationary directional discharge conduit is in fluid communication with the pump and has at least one discharge opening through which a pressurized stream of water forming the water jet is directionally discharged at an acute angle with respect to the surface over which the apparatus is moving.
摘要:
A power consuming device is configured to be electrically connected to a power connection point of a power distribution system of a datacenter. The power distribution system includes a hierarchy of power supply equipment. A first label is associated with the power connection point and includes power supply information that indicates the power connection point's place in the hierarchy of power supply equipment. A second label is associated with the power consuming device and includes identification information that identifies the power consuming device. A reader is configured to read the first label to obtain the power supply information and to read the second label to obtain the identification information. An electrical connection management system is configured to receive the power supply information and the identification information obtained by the reader such that the electrical connection management system records the connection of the power consuming device to the power connection point and the power connection point's place in the hierarchy of power supply equipment.
摘要:
A method for accurately controlling the directional and turning movement of a self-propelled robotic pool cleaner while cleaning a pool includes the steps of propelling the pool cleaner in a first direction along a generally straight path from a first sidewall toward an opposing sidewall of the pool, wherein said pool cleaner is propelled to a position in the pool corresponding to a distance greater than the midpoint between the first sidewall and the opposing sidewall and before contacting the opposing sidewall of the pool; stopping the pool cleaner at the position and pivoting the pool cleaner to a predetermined angular change in direction; and reversing direction and resuming propulsion of the pool cleaner, wherein the pool cleaner moves in a second direction along a generally straight path that is angularly displaced from the first direction.
摘要:
Polymer materials are described that undergo a two-level three-dimensional crosslinking process. During this process, hydrophilic polymers are crosslinked at two levels, the first results in a low level of crosslinking which leads to a toughening of the layer preventing dissolution by the fountain solution but with the layer remaining hydrophilic. The second level of crosslinking is higher and is the result of exposure to a laser diode thermal imaging device. The crosslinking at this second level results in a loss of hydrophilicity and provides instead an oleophilic image capable of accepting and transferring oil-based ink. The polymer materials are particularly useful in lithographic printing systems where they may used in articles such as a printing plate comprising a substrate having coated thereon a layer that becomes less hydrophilic upon exposure to thermal energy (e.g., heat applied by a laser, other collimated light, or thermal printhead) that effects crosslinking (initial crosslinking or increased crosslinking) in the layer, the layer comprising a mixture of a crosslinked polymer and a thermally active crosslinking metal compound. The invention also provides an overcoat layer eluable in aqueous media for a printing plate precursor comprising on a substrate a layer comprising a mixture of a crosslinked polymer and a thermally active crosslinking metal compound. The overcoat layer protects the heat-sensitive crosslinked polymer layer from discoloration, contamination and scratching and reduces odor and particulate emissions.
摘要:
An aquarium fountain for the improved circulation in a cascading manner of a fixed quantity of particulate matter such as sand. The fountain includes a housing having a receptacle for containing and receiving the fixed quantity of sand. The housing includes an air lift tube having an inlet end in communication with the particulate matter to be circulated and an outlet end out of which the particulate matter is expelled. The outlet end of the air lift tube extends into an upper chamber of the housing. The upper chamber is configured to have an air pocket located between the outlet end and an air escape opening located in a wall of the housing.
摘要:
A self-propelled robotic pool cleaner (100) has a first pair of driven brushes (12, 14) and second pair of free brushes co-axially mounted for rotation on axles (16) at the opposite ends of the pool cleaner. The first pair of brushes are mounted on one side and are driven by a drive motor (110); the second pair of brushes are mounted on the opposite side of the cleaner. A rotational delay clutch (30) is co-axially positioned between each pair of the first and second brushes so that reversing the drive motor causes the first pair of driven brushes to temporarily rotate at an angular rotational velocity that is greater than that of the second pair of brushes, thereby pivoting the pool cleaner through a predetermined angular change in direction before the synchronous rotation of the second pair of dual brushes is initiated by the engagement of the clutch.
摘要:
A method and apparatus for controlling the directional movement of a self-propelled robotic pool cleaner having at least one pair of rotational support members for propelling and cleaning a surface of a pool. The method includes accelerating the at least one pair of rotational support members of the pool cleaner from a stopped position to a first predetermined rotational rate in a first predetermined time period; rotating the at least one pair of rotational support members at said first predetermined rotational rate for a second predetermined time period; and increasing the first rate of rotation to a second greater predetermined rotational rate, wherein said pool cleaner is propelled at a normalized rate for cleaning said pool.
摘要:
A swimming pool cleaner discharges water jets under the cleaner body, directed toward its center from its sides, to agitate and lift debris toward one or more vacuum intake openings, to greatly enhance the cleaning ability of the cleaner. The suspended dirt and debris become semi-buoyant under the force of the jetted water which is preferably moving in the same direction as the cleaner, so that the relative speed between the cleaner and the suspended dirt and debris is reduced, thereby enabling the cleaner to move at a relatively faster rate and still clean with equivalent or even greater efficiency than a pool cleaner that is not equipped with directional cleaning water jets. In addition, displaced front and back orientations of the intake ports allow for longer time for any dirt and debris to be picked up.