107results about How to "Performance degradation" patented technology

A method, apparatus, and program product are provided for managing power consumption in a computer system based on the degree with which performance of tasks can be degraded in order to save power. A criticality value controls the degree with which performance of a task may be degraded is associated with tasks within a computer system. Power consumption of the computer system is then managed based on the criticality values associated with tasks executing within the computer system. A reduction in computer system power consumption can be realized by degrading the performance of non-critical tasks, which is accomplished by reducing the power consumed by at least a portion of the computer system. Power can also be reduced by scheduling non-critical tasks to portions of the computer system and reducing power consumption of other portions of the computer system.

An apparatus and methods are disclosed for intelligently determining when to merge transactions to backup storage. In particular, in accordance with the illustrative embodiment, queued transactions may be merged based on a variety of criteria, including, but not limited to, one or more of the following: the number of queued transactions; the rate of growth of the number of queued transactions; the calendrical time; estimates of the time required to execute the individual transactions; a measure of importance of the individual transactions; the transaction types of the individual transactions; a measure of importance of one or more data updated by the individual transactions; a measure of availability of one or more resources; a current estimate of the time penalty associated with shadowing a page of memory; and the probability of rollback for the individual transactions, and for the merged transaction.

PCI Express bus utilization is monitored for one or more predetermined thresholds to adjust the width of the bus in accordance with the utilization to provide power savings with minimal impact on performance. For instance, a performance monitor of a graphics controller tracks bus utilization with registers to adjust bus width between one, eight and sixteen lanes. Reduced numbers of active lanes are used at low utilization, such as one lane when a desktop graphic is presented on the display, increased numbers of active lanes are used at moderate utilization, such as eight lanes when a video image is presented on the display, and all lanes are active at high utilization, such as for presentation of three dimensional images.

A method and apparatus for reporting a Buffer Status (BS) using Node B-estimated BS information in a mobile communication system are provided. A Node B-estimated BS and an actual BS of a User Equipment (UE) are monitored. A value of the Node B-estimated BS is compared with a first threshold value. If the Node B-estimated BS value is less than the first threshold, a determination is made as to whether the value of the actual BS is more than a second threshold. If the actual BS value is more than the second threshold, a Buffer Status Report (BSR) indicative of the actual BS is transmitted to a Node B.

A self-healing and self-optimizing grid architecture can be provided in accordance with the present invention. Specifically, the architecture can include a mechanism for detecting component failures, and even degraded component performance, within peer components in a hosting service. Once a failure has been detected, the detecting peer to undertake remedial action to recreate and redeploy the component in the hosting system. In particular, the detecting component can acquire the behavior of the failed component and the detecting component can instantiate an instance of the behavior in another server in the grid. Thus, the mechanism described herein can be analogized to biotechnical DNA as every component in the hosting service can maintain an awareness of the state of the entire system and can recreate the entire system through knowledge provided by grid services DNA.

A method forms a semiconductor device comprising a modifiable strain inducing layer. A semiconductor body is provided. First and second regions of the semiconductor body are identified. A modifiable tensile strain inducing layer is formed over the device within the first and second regions. A mask is then formed that exposes the second region and covers the first region. A material is selected for a modification implant and the selected material is implanted into the second region thereby converting a portion of the modifiable tensile strain inducing layer into a compressive strain inducing layer within the PMOS region.

An arrangement is provided in a fuel cell power plant (10) for dispensing (58 74,60, 64) a liquid medium, such as water (66), into a process oxidant (air) stream (53) that flows through one gas channel (42) in an energy recovery device (ERD) (32). An exhaust gas stream (48) containing heat and moisture from the fuel cell (12) flows through another channel (44) in the ERD. An enthalpy exchange barrier (46) separates the one and the other gas channels, but allows mass and / or heat transfer therebetween. The water is injected into the air stream (53) in a controlled (70, 74) amount, and perhaps temperature (78), in response to sensed parameters (80, 84, 90) of the power plant, including the process air stream, to adjust one or more conditions in the power plant. Controlling ERD dryness, providing a defrost capability for the ERD, and / or preventing excessive water accumulation in the system are several of the conditions controlled.

A multi layered high impedance structure presents a high impedance to multiple frequency signals, with a different frequency for each layer. Each layer comprises a dielectric substrate, and an array of radiating elements such as parallel conductive strips or conductive patches on the substrate's top surface, with a conductive layer on the bottom surface of the bottommost layer. The radiating elements of succeeding layers are vertically aligned with conductive vias extending through the substrates to connect the radiating elements to the ground plane. Each layer presents as a series of parallel resonant L-C circuits to an E field at a particular signal frequency, resulting in a high impedance surface at that frequency. The new structure can be used as the substrate for a microstrip patch antenna to provide an optimal electrical distance between the resonator and backplane at multiple frequencies. It can also be used in waveguides that transmit multiple signal frequencies signals in one polarization or that are cross-polarized. As a waveguide it maintains a near-uniform density E and H fields, resulting in near uniform signal power density across the waveguide's cross-section.

Blades are connected to the surface of a disk and slots are formed in the surface of a shroud, which is opposite from the other surface of the shroud where the blades are to be welded. The blades are arranged on the opposite surface from the slots and a laser beam is applied from the surface in which the slots are formed, to weld the shroud and the blades. If powder is melted and put in the slots formed for welding in the shroud to fill the slots, thermal distortion occurs. On the other hand, if the slots are left empty, a problem of degrading the fluid performance arises. To solve these problems, components are installed on the surfaces of the slots on the opposite side from the blades after the blades and the shroud in which the slots are formed are welded. Alternatively, the slots are filled with a material different from that of the shroud, such as a resin. With this configuration, distortion caused by welding heat can be reduced without degrading the fluid performance. This method can be applied to the case where the blades are formed on the surface of the shroud, not on the surface of the disk, and to the slots formed in the disk after the blades and the disk are laser-welded.

Methods and systems are provided for coordinating adjustments to a compressor recirculation valve with adjustments to a binary flow turbine scroll valve to reduce surge. The scroll valve is closed to increase turbine energy while the compressor recirculation valve is opened to increase compressor flow. Concurrent adjustments to a wastegate may be used to provide boost pressure control.

An apparatus for minimizing electromagnetic interferences, comprising a top shielding on which a trench with a predetermined depth is formed; an elastomer disposed in the trench with a predetermined thickness greater than the predetermined depth of the trench; and a conductive film, with at least one side of which is anchored to the top shielding and partially covers the trench, so that the film can be in contact with a high-frequency device to direct the RF noise to the grounding terminal of a motherboard to minimize electromagnetic interferences of the electronic devices.

The invention relates to a single nanowire electrochemical device and an assembly and in-situ characterization method thereof. The method comprises the following steps of: dispersing nanowire anodes of vanadium oxide nanowires, and the like, nano film cathodes of HOPG (Highly Oriented Pyrolytic Graphite), and the like or nanowire cathodes of silicon nanowires, and the like and nano film anodes of LiCoO2, and the like on a substrate; respectively making metal electrodes at both ends of the nanowires and the nano films as current collectors by adopting technologies, such as PECVD (Plasma-Enhanced Chemical Vapor Deposition), and the like; then, depositing silicon nitride or spinning a photoresist on the metal current collectors as protection layers of the current collectors by adopting the PECVD technology, and the like; and finally, dispensing a polymer electrolyte on the surface of the substrate to finish the assembly of the single nanowire electrochemical device. In the invention, charging and discharging tests are carried out on the electrochemical device, then in-situ electrical transport performance tests, micro-domain Raman spectrum analysis, and the like are carried out on the single nanowire electrodes in different charging and discharging states, the direct relation among the electrical transport, the structure and the electrochemical performance of the nanowire electrode material is established, a platform is provided for battery diagnosis, and the like and a support power supply can be provided for the nano device.

A wireless channel access control method based on a virtual token comprises the following steps of: A, a plurality of nodes are selected, one node is designated as a center node, the other nodes are called as wireless nodes, B, the center node generates a token, some wireless node is designated to hold the token, C, if the center node can monitor that the wireless node of some address uses the token, token passing succeeds, D, if monitoring fails, the token is re-passed for designated times or a data frame is broadcast, another node is designated to hold the token, E, the number of the nodes is updated, F, when the token is lost, the center node generates a token again, G, the nodes are monitored, the token is abandoned, the center node generates a token again, and H, Steps A-G are repeated. The method has the benefits that a secondary competitive mechanism is introduced, with the adoption of a node priority strategy, transmission requirements of emergency messages are met, the high reliability and timeliness of a network are guaranteed, and the effective utilization rate of the network is increased by data frame fusion.

A vibration control system comprising an actuator, and a sensor useful for controlling vibrations in systems for fabricating electronics equipment. The actuator may comprise one or more plates or elements of electro-active material bonded to an electroded sheet.

Various systems and methods providing high speed decoding, enhanced power reduction and clock domain partitioning for a multi-pair gigabit Ethernet transceiver are disclosed. ISI compensation is partitioned into two stages; a first stage compensates ISI components induced by characteristics of a transmitters partial response pulse shaping filter in a demodulator, a second stage compensates ISI components induced by characteristics of a multi-pair transmission channel in a Viterbi decoder. High speed decoding is accomplished by reducing the DFE depth by providing an input signal from a multiple decision feedback equalizer to the Viterbi based on a tail value and a subset of coefficient values received from a unit depth decision-feedback equalizer. Power reduction is accomplished by adaptively truncating active taps in the NEXT, FEXT and echo cancellation filters, or by disabling decoder circuitry portions, as channel response characteristics allow. A receive clock signal is generated such that it is synchronous in frequency with analog sampling clock signals and has a particular phase offset with respect to one of the sampling clock signals. This phase offset is adjusted such that system performance degradation due to coupling of switching noise from the digital sections to the analog sections is substantially minimized.

A methodology and system is disclosed which addresses outstanding needs of refiners to process cheaper crudes or blends of crudes. This method and system comprises a number of steps, including characterizing the impact of various constituents in the crude which result in fouling of heat exchangers; estimating model parameters; monitoring and predicting qualitative and quantitative performance; and determining optimal dosage of chemical treatments.

In a multi-core processor system, cache memories are provided respectively for a plurality of processors. An assignment management unit manages assignment of tasks to the processors. A cache status calculation unit calculates a cache usage status such as a memory access count and a cache hit ratio, with respect to each task. A first processor handles a plurality of first tasks that belong to a first process. If computation amount of the first process exceeds a predetermined threshold value, the assignment management unit refers to the cache usage status to preferentially select, as a migration target task, one of the plurality of first tasks whose memory access count is smaller or whose cache hit ratio is higher. Then, the assignment management unit newly assigns the migration target task to a second processor handling another process different from the first processor.

The present invention relates to a white-light, light source using LED as luminous body. It is characterized by that on a metal circuit board a planar or pit-shaped light-reflecting bowl is made, in the centre of said light-reflecting bowl an indium-gold, gold-tin or similar alloy coating layer is evaporated or coated, then a high-effective blue-light LED bare chip is welded, and the surface of LED chip is covered with epoxy resin or silicon-like transparent resin so as to make two-dimensional blue light be high-effectively and uniformly sent out, the blue light can be passed through a translate film whose interior has doped yellow fluorescent powder or whose surface is coated with yellow fluorescent powder, excited and light-mixed so as to form the invented semiconductor white-light light source.

A satellite receiver receives a hierarchical modulation based received signal, which has at least an upper layer (UL) and a lower layer (LL), and simultaneously recovers therefrom data conveyed in the UL signal and data conveyed in the LL signal.

The present invention provides a hollow fiber membrane module having fixing layers to which one or more hollow fiber membrane bundles each including a plurality of hollow fiber membranes are fixed at respective ends thereof using a casting resin, a hollow portion of each of the hollow fiber membranes being open at one or both of the ends, wherein the hollow fiber membrane bundle is divided into a plurality of small bundles at least one of the fixing layers on the open side of the hollow portion, and an outer circumference of each of the small bundles is covered with an elastic body near a filtration portion interface of the fixing layer.

A method of dynamically redirecting traffic in a RapidIO network, which includes a host processor, a plurality of endpoints, and a plurality of switches. The method comprises assigning a “virtual” destination ID (VDID) to each endpoint, after each endpoint has already been provided with an original Destination ID and an original path has been mapped for each pair of endpoints in accordance with the RapidIO protocol, i.e. the routing tables in appropriate switches have been populated with output instructions for packets with specific Destination IDs. Accordingly, one or more redundant routing paths can be programed into the routing tables of appropriate switches between each pair of endpoints, different than the original path therebetween. The switches can therefore steer the packets with VDIDs along redundant routing paths, to avoid damaged links, access isolated switches and / or perform loopback transmissions without having the switches routing tables reprogrammed.

The invention relates to an enhanced AlGaN / GaN HEMT (High Electron Mobility Transistor) device and a manufacturing method thereof, belonging to the technical field of semiconductor devices. The device comprises an AlGaN / GaN heterojunction structure located on the surface of a substrate and gate, source and drain electrode structures, wherein F ion or Cl ion fixed negative charges are arranged in a gate dielectric film material. In the invention, through introducing the F ion or Cl ion fixed negative charges into a gate dielectric film and controlling the electric charge quantity of the introduced fixed negative charges, the threshold voltage of a transistor is regulated and the enhanced AlGaN / GaN HEMT device with the threshold voltage greater than zero is realized. In the invention, the enhanced AlGaN / GaN HEMT device structure is obtained though a method of introducing the fixed negative charges into the gate dielectric film material; interface characteristics of the AlGaN / GaN heterojunction are not influenced so that the performance degeneration of the device is not caused; the process is simple and controllable and is compatible with the manufacturing process of a depletion mode (normally-on) AlGaN / GaN HEMT device; the source-drain saturation current density and the gate-drain current of the manufactured device for manufacturing a GaN enhanced effect transistor are small; and therefore, the device is particularly suitable for developing a GaN logic circuit.

The present invention relates to a system and a method for controlling a motor. A rotation / fixed coordinates converter converts a reference magnetic flux voltage and a reference torque voltage of a rotation coordinates system into data of a fixed coordinates system, and outputs the data to the three-phase voltage generator. A fixed / rotation coordinates converter converts a three-phase current applied from the inverter to the motor into a two-phase current. An estimation unit estimates a rotation angle and rotor speed of the motor upon receiving currents applied to the fixed / rotation coordinates converter. A control block receives the estimated rotation angle and the estimated speed from the estimation unit, and outputs the reference magnetic flux voltage and the reference torque voltage of the motor to the rotation / fixed coordinates converter to compensate an error caused by loads generated when driving the motor. Thus, the control system greatly reduces noise and vibrations of a compressor without being affected by loads generated by compression / expansion strokes of the compressor at a startup time of the motor, and prevents a performance of the compressor from being deteriorated.

A disk array unit connected to a host unit to give information thereto and receive information therefrom. The disk unit includes a plurality of disk units for storing information transmitted from the host unit and a management information recording device, formed by utilizing information storage areas in the disk units, for causing information relating to a logical unit for storing information from the host unit to correspond to information relating to the units. The invention further includes a control unit, when there is no access from the host unit to the logical unit for a predetermined time, for determining the disk units corresponding to the logical unit based on information recorded in the management information recording device and performing power saving of power supply for the disk units.

The invention discloses a non-destructive reduction method for welding residual stress of a large-scale thin-walled high-strength aluminum alloy storage tank. The material of the storage tank is 2219 aluminum alloy which has been subjected to solid solution treatment after cold rolling and artificial aging treatment, and comprises the following steps: (1) ) Connect the stress relief equipment system and set parameters, (2) The ultrasonic transducer converts the electrical signal generated by the ultrasonic generator into a high-power ultrasonic wave, and directly injects the couplant into the welding joint of the tank that needs stress relief treatment, (3) Detect the residual stress value of the treated part, and carry out welding residual stress reduction treatment according to the actual situation. The present invention uses a high-power ultrasonic transducer to convert the electrical signal generated by the high-power ultrasonic generator into a high-power ultrasonic wave, and directly injects the coupling agent into the welding joint of the storage tank, and activates the lattice arrangement in the stress zone material of the welding joint through the power ultrasonic, Induces dislocations to detach from pinning, promotes microscopic plastic deformation, and realizes the reduction of residual stress inside the workpiece material.

The invention relates to a channel equalization method and a channel equalization system based on an RLS (recursive least square) and LMS (least mean square) combined algorithm. The method includes: step 101), training tapping coefficients of an equalizer on the basis of training data by an RLS equalization algorithm until the equalizer reaches convergence, and assuming that the equalizer reaches convergence when the training data are subjected to Ncth iteration; step 102), iterating the 'jth' bit of received user data, windowing an error value acquired by iteration, and calculating an average error autocorrelation estimation value of data, with a fixed length, in a sliding window; step 103), comparing the acquired average error autocorrelation estimation value with a preset threshold value, and selecting one of equalization algorithms including the RLS equalization algorithm and an LMS algorithm; step 104), equalizing the jth user data by the selected equalization algorithm, updating j as j+1, and then returning to the step 102) until all received user data are processed. The channel equalization method and the channel equalization system have the advantages that excellent performance in time-varying channels is achieved, and requirements on real-time performance can be met.

A touch-type display panel includes an array substrate including a plurality of sub-pixels defined by gate lines and data lines; a plurality of touch electrodes disposed to cover the sub-pixels; two or more touch driving lines that electrically connect a touch driving circuit to a respective one of the touch electrodes; and a connection line disposed on both sides of the one of the touch electrodes and configured to electrically connect the two or more touch driving lines.