91results about How to "Reduce performance" patented technology

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

A method for providing a film cooled article is disclosed. A metallic article is provided having first and second wall surfaces and a cooling hole. The cooling hole includes a metering hole that extends from an inlet at the second wall surface to an outlet at the first wall surface. The method further includes exposing the first wall surface of the metallic article, applying a thermal barrier coating overlying the first wall surface and at least partially covering the outlet, boring through an outer surface of the applied thermal barrier coating to expose the metering hole, removing the thermal barrier coating from a trough portion of the outlet formed in the metallic article and forming a trough region in the thermal barrier coating that extends from the trough portion of the outlet formed in the metallic article to be flush with the outer surface of the thermal barrier coating.

The invention discloses a system and a method for evaluating students' mastery degree in class based on multiple sensors. The method comprises the following steps: collecting student data; preprocessing a student face image sequence and a speech sequence; extracting facial expressions and speech features; classifying facial expressions, speeches and examination results; using a Gaussian mixture model to integrate the classification results; and analyzing the integration result and giving class evaluation and suggestions. The convolution neural network in deep learning is adopted in speech emotion processing, and complicated artificial feature extraction is avoided. Through use of the Gaussian mixture model, the degree of classification confidence of classifiers is determined according to sample distribution and fused adaptively. A novel student in-class mastery degree evaluation scheme based on multiple sensors is designed by combining the facial expressions, speeches and examination results of students. The mastery degree of students in class can be evaluated more objectively and accurately, the mastery degree of students can be judged, and a teaching evaluation result and corresponding suggestions can be given.

A non-virtual server and a virtual server make up the same tenant in an environment, in which virtual servers created by dividing a single physical server into a plurality of computer environments coexist with a non-virtual server that directly uses a single physical server as a computer environment without using server virtualization. A management computer is provided with virtual switch management information that shows a correlation between the virtual servers and an internal network to which a relevant virtual server connects, and physical switch management information that shows a correlation between the non-virtual server and an internal network to which the non-virtual server connects. The management computer creates a virtual server that belongs to the same tenant as a physical instance, identifies a first internal network to which the non-virtual server connects, and configures the tenant so that the relevant virtual server is connected to the first internal network.

The invention relates to methods and apparatuses for the decontamination of fluid, particularly the removal of heavy metals and/or arsenic and/or their compounds from water, by means of electrocoagulation followed by adsorption, wherein the water to be purified subjected to electrodes of different polarities. The invention can include means for control of the pH of the fluid. The invention can also include control systems that allow self-cleaning of electrodes, self-cleaning of filters, and automatic monitoring of maintenance conditions.

A multiple-input multiple-output s-box receives a contiguously numbered input bits (101, 102, 103, 104, 105) I₁, I₂ to I_a, where a is at least 4, and outputs b contiguously numbered output bits (131, 132, 133, 134, 135) O₁, O₂, to O_b. The s-box comprises c primitive s-boxes (121, 122, 123) sb₁ sb₂ to sb_c. Each primitive s-box (121, 122, 123) has a multiple-input single-output Boolean function ƒ₁, ƒ₂, to ƒ_o defining the relationship between the multiple inputs and the single output. Each primitive s-box (121, 122, 123) receives a set of input bits s₁, s₂, to s_c, respectively, each such set is chosen from the a input bits (101, 102, 103, 104, 105) to the s-box and containing sl₁, sl₂, to sl_c bits respectively. Each of the numbers sl₁, sl₂, to sl_c, is in the range of 3 to (a−1), and the sum of the numbers sl₁, sl₂, to sl_c is larger than a. The b output bits of the s-box (131, 132, 133, 134, 135) are the outputs of the c Boolean functions.

A multilayer radiant-barrier structure is formed on one or both sides of a substrate that can be attached to an insulating layer to produce a reflective insulating material. The metallized layer is protected from environmental degradation without interfering with flammability properties that are critical for radiant and reflective insulation materials used in housing applications. The metal layer is modified to insulate enclosures without blocking cellular communications and the protective functional layer in modified to minimize emissivity, create a hydrophobic and/or oleophobic surface, and/or prevent mold, fungi and bacteria growth. Solutions are provided to solve occupational-hazard problems associated with the use of these materials in enclosures that include power wires.

The durability of a PEM fuel cell is improved by replacing carbon catalyst support materials in the cathode (and optionally both electrodes) with a titanium oxide support. The electrode thus preferably contains noble metal containing catalyst particles carried on catalyst support particles of titanium oxide. The catalyst-bearing titanium oxide particles are mixed with electrically conductive material such as carbon particles. The combination of platinum particles deposited on titanium dioxide support particles and mixed with conductive carbon particles provides an electrode with good oxygen reduction capacity and corrosion resistance in an acid environment.

As one embodiment, a method of operating an engine of a vehicle is provided wherein the engine has a variable engine output. The method comprises during a first engine output, delivering a first fuel to at least a cylinder of the engine via a first injector and directly injecting a second fuel directly into said cylinder via a second injector; and during a second engine output lower than said first engine output, delivering said first fuel to said at least a cylinder of the engine via said first injector and directly injecting at least a purging substance via said second injector based on an idle period since a previous injection by said second injector.

A disk mirror data storage system which includes a plurality of mirror facets, at least one local and at least one remote accessed by an IP network. The system includes a mirror volume manager which, in response to a request to store data, performs a synchronous write of the data to the local mirror facet, and an asynchronous write of data to the remote mirror facet. The data to be stored is also written to a locally maintained buffer where it is kept until the asynchronous write to the remote facet has completed. This allows the system to report completion of the write operation after synchronous write to the local facet, and without waiting for the asynchronous write to the remote facet to complete.

The embodiment of the invention discloses a ghosting effect realization method and device. The realization method comprises the steps of determining target objects which are picture elements needing to realize a ghosting effect, copying predetermined number of the target objects to obtain copy objects, arranging the obtained target objects and the copy objects according to the motion tracks of the target objects, setting transparency of the copy objects from near to far and from high to low according to the copy objects and the target objects, and displaying the target objects and the copy objects. In the process of producing the ghosting effect, a whole image frame does not need to be stored in a render buffer area, and transparency hybrid processing on the whole image frame is not necessary; therefore, data processing resources and storage resources which are needed by the realization of the ghosting effect can be reduced, the requirements for hardware are reduced, and a smooth visual effect can be achieved in equipment with lower performance hardware.

A computing device and methods of operating the same are disclosed. The computing device may include a network interface that receives web content and a display that displays a displayable format of the web content. In addition, a plurality of browser processing components are included that carry out browser processing activity to generate a displayable format of the web content, and the computing device includes a browser management component that monitors at least one browser processing activity of a corresponding browser processing component and coordinates at least one browser management activity to either reduce the likelihood that the at least one browser management activity adversely affects performance of the plurality of browser processing components, or allow the at least one browser management activity to perform activities that leads to overall improvement of the browsing experience.

Disclosed is a method and apparatus providing the capability to supplement a branch target buffer (BTB) with a recent entry queue. A recent entry queue prevents unnecessary removal of valuable BTB data of multiple entries for another entry. Additional, the recent entry queue detects when the latency of the BTB's startup latency is preventing it from asynchronous aiding the microprocessor pipeline as designed for and thereby can delay the pipeline in the required situations such that the BTB latency on startup can be overcome. Finally, the recent entry queue provides a quick access to BTB entries that are accessed in a tight loop pattern where the throughput of the standalone BTB is unable to track the throughput of the microprocessor execution pipeline. Through the usage of the recent entry queue, the modified BTB is capable of processing information at the rate of the execution pipeline thereby accelerating the execution pipeline.

The invention relates to a dust collecting method for air conditioners. The dust collecting method includes: defrosting by controlling an air conditioner fan to rotate through a controller of an air conditioner, and collecting dust on a heat exchanger by flowing water generated by air blowing of the air conditioner fan and defrosting. By the dust collecting method for the air conditioners, accumulated dust on the air conditioners can be safely and conveniently collected, different dust collection modes can be adopted for different types of air conditioners, better dust collecting effect can be realized, dust cannot be accumulated much after long-term running of the air conditioners, and performances of the air conditioners can be kept stable and cannot be weakened too much.

A thermal management system utilizing a composite thermal radiation barrier comprising alternating layers of a carbon cloth insulating layer and a silica-based organic cloth to reduce the temperatures experienced by the insulating layer.

An electronic device is provided for analog to digital conversion using successive approximation. The device comprises a first ADC stage. The first ADC stage includes a first plurality of capacitors adapted to sample an input voltage, and adapted to be coupled to either a first reference signal level or a second reference signal level. At least one capacitor of the first plurality of capacitors is adapted to be left floating. A control stage is adapted to switch the at least one floating capacitor to the first reference signal level or the second reference signal level in response to an analog to digital conversion decision made by a second ADC stage.

An apparatus measures a property of a layer (such as the sheet resistance of a conductive layer or thermal conductivity of a dielectric layer that is located underneath the conductive layer) by performing the following method: (1) focusing the heating beam on the heated a region (also called “heated region”) of the conductive layer (2) modulating the power of the heating beam at a predetermined frequency that is selected to be sufficiently low to ensure that at least a majority (preferably all) of the generated heat transfers out of the heated region by diffusion, and (3) measuring the power of another beam that is (a) reflected by the heated region, and (b) modulated in phase with modulation of the heating beam. The measurement in act (3) can be used directly as a measure of the resistance (per unit length) of a conductive line formed by patterning the conductive layer. Acts (1)-(3) can be repeated during fabrication of a semiconductor wafer, at each of a number of regions on a conductive line, and any change in measurement indicates a corresponding change in resistance of the line. When the measurement changes by more than a predetermined amount (e.g. by 10%), a process parameter that controls the fabrication process is changed to return the measurement to normal in the next wafer. Moreover, the thermal conductivity of the dielectric layer can be measured, or monitored for changes beyond a predetermined limit during a scan across the wafer, if resistance is known.

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.

The invention provides a mobile terminal and a full-automatic turnover camera shooting assembly. The mobile terminal comprises a containing groove and a driving control mechanism. The containing groove comprises a bottom face, two first side walls and a second side wall, a first flange extending toward a second face of the mobile terminal is arranged at one end, connected with a first side edge of the mobile terminal, of the bottom face, the two first side walls are oppositely arranged and vertically connected with the bottom face, a second flange extending toward the first side edge of the mobile terminal is arranged at one end, connected with the second face of the mobile phone, of the second side wall, the bottom face, the first flange and the second side wall are connected through a cambered surface or a corner, and the bottom face, the second side wall and the second flange are connected through a cambered surface or a corner. The driving control mechanism comprises a motor, and the camera shooting assembly is driven by the driving control mechanism to be turned over when the motor operates and is locked by the driving control mechanism at the remaining time. According to the mobile terminal, the camera shooting assembly can be turned over better.

A clock system for a fiber optic gyroscope is provided that includes a highly-tunable clock for the bias modulation and a separate asynchronous high-speed clock for the photodetector sampling. By separating the two clocks rather than using two derivatives of the same clock, the clock system and method can provide both the tunability objective of the bias modulation clock and the high-speed objective of the sampling clock, while using readily available, lower performance, radiation-hardened electronics parts.

A computer processor integrated circuit has multiple functional units, where each unit is coupled to a register file for reading and writing operands. An instruction fetch unit receives instructions from a memory system and dispatches commands to the functional units. The processor has a resource status flags register wherein particular units may be marked enabled or disabled. The instruction fetch and decode unit checks the resource status flags register prior to dispatching commands and dispatches commands only to those functional units marked enabled. The instruction fetch and decode unit is capable of dispatching commands to available units, and of stalling and dispatching remaining commands in a following cycle if insufficient resources are available to simultaneously dispatch all commands necessary to execute an instruction or group of instructions.

An authentication method includes RFID tags authenticating RFID readers. A tag sends a tag identifier and a reader challenge to a reader in response to one or more commands from the reader. The reader then either derives a response to the reader challenge itself or has a verification authority derive the response. The response may be derived from parameter(s) in the reader challenge, and may be derived using a cryptographic key. The reader then sends the response to the tag along with another command. The tag verifies the response before executing instruction(s) included in the command.

An analog-to-digital converter converts a video signal into a digital video signal consisting of N bits and outputs the converted signal. A correction value memory stores correction data consisting of M bits which is used to correct the difference in luminance between display pixels on a display. A multiplier multiplies the video signal consisting of N bits output from the analog-to-digital converter by the correction data consisting of M bits stored in the correction value memory, and outputs a video signal consisting of L bits with which the difference in luminance between display pixels on the display is corrected.

For coordinated disaster reovery, a reconciliation process is performed for resolving intersecting and non-intersecting data amongst disaster recovery systems for takeover operations. An ownership synchronization process is coordinated for replica cartridges via the reconciliation process at the disaster recovery systems. The disaster recovery systems continue as a replication target for source systems and as a backup target for local backup applications.

The invention discloses a small low-noise centrifugal fan and a breathing machine comprising the same. The fan comprises a fan blade, an upper volute and a lower volute. A motor installation cavity is formed in the center of the lower volute and a brushless direct-current motor is installed in the motor installation cavity. A through hole is formed in the axis of the fan blade and used for locking a stretching shaft of the motor in a matched mode. The upper volute and the lower volute are assembled in a locked mode. The fan blade is composed of a plurality of arc-shaped short blade bodies, a plurality of arc-shaped long blade bodies and a lower disc. The number of the arc-shaped short blade bodies is equal to that of the arc-shaped long blade bodies. The arc-shaped short blade bodies and the arc-shaped long blade bodies are alternately arranged on the lower disc. The centrifugal fan has the advantages of being high in performance, low in noise, small in size, simple in structure, easy to manufacture and the like.

A method and a system are provided for testing the braking capacity of one or more brake elements of a vehicle, where the vehicle includes a power source for propulsion of the vehicle and at least one ground engagement element driven by the power source, and at least one brake element arranged for braking the vehicle by acting on a rotation component of the vehicle. At least one brake element is automatically activated by applying a predetermined brake force, and a predetermined decision torque level is applied to the rotation component by means of the power source, wherein the decision torque level is indicative for the braking capacity of said at least one brake element when said predetermined brake, force is applied. It is determined whether or not there is a motion of the vehicle and/or of said at least one ground engagement element when the decision torque level is applied in order to decide on the braking capacity of said at least one brake element.

A system and method for reducing the frequency of stack stand-by mode events, if necessary, as a fuel cell stack ages and experiences lower performance. The method determines an irreversible voltage loss of the fuel cell stack at predetermined time intervals and determines a stack voltage degradation variable based on the irreversible voltage loss. The method also determines if the stack voltage degradation variable indicates that the fuel cell stack will not meet predetermined stack end-of-life voltage requirements and calculates a maximum allowed voltage degradation rate of the fuel cell stack. The method calculates a maximum number of stand-by mode events per unit time that can be allowed to prevent the stack from exceeding the maximum allowed degradation rate and controls the number of stand-by mode events based on the calculated maximum number of stand-by mode events.

A passive ambient in-ear monitor includes an interchangeable unidirectional sonic filter that allows ambient sound to pass through to the ear canal and be combined with sound generated by internal drivers. A sonic low pressure equalization device of a predetermined spatial volume links the sonic filter with the internal drivers to deliver to the user a mixture of generated and ambient sound without any substantial degradation to low frequency sound.

The invention discloses a method for eliminating coarse grain rings of an aluminum alloy bar used for spaceflight, relates to the field of methods for aluminum alloy bars for used spaceflight, and aims to solve the technical problem that the coarse grain rings of the bar used for spaceflight extruded and prepared by the existing process exceeds the standard requirement. The method comprises the steps of 1, casting an aluminum alloy cast ingot; 2, heating and extruding the cast ingot; 3, annealing; 4, end treatment; 5, carrying out over-mold cold drawing; 6, quenching; 7, stretching and straightening; and 8, carrying out roller type straightening, and the aluminum alloy bar, used for spaceflight, under the situation of eliminating the coarse grain rings is prepared. The aluminum alloy bar prepared through the method can be free of coarse grain rings, and the standard requirement is met; the mechanical property further meets the application requirements of spaceflight products; and the method is used for preparing the aluminum alloy bar used for spaceflight.

The invention provides a solid state disk data storage method, which comprises the following steps of: determining the relationship among the erasing times, the storage time and the bit error rate ofblocks of a hard disk according to a pre-test result; establishing a first information area and a second information area, the first information area recording the erasure frequency of the free blockand the calculated bit error rate after the preset storage time, and the second information area recording the erasure frequency and the stored time of the data block and the calculated bit error rateafter the preset storage time; determining a specific free block with the highest bit error rate after the preset storage time from the first information area, and determining a specific data block with the highest bit error rate after the preset storage time from the second information area; and when it is determined that the bit error rate of the specific free block is equal to the bit error rate of the specific data block after the preset storage time, migrating the data of the specific data block to the specific free block. The erasing times of each block of the solid state disk can be balanced.