196 results about "Performance ratio" patented technology

A method, system and software for allocating information handling system resources in response to cluster fail-over events are disclosed. In operation, the method provides for the calculation of a performance ratio between a failing node and a fail-over node and the transformation of an application calendar schedule from the failing node into a new application calendar schedule for the fail-over node. Before implementing the new application calendar schedule for the failing-over application on the fail-over node, the method verifies that the fail-over node includes sufficient resources to process its existing calendar schedule as well as the new application calendar schedule for the failing-over application. A resource negotiation algorithm may be applied to one or more of the calendar schedules to prevent application starvation in the event the fail-over node does not include sufficient resources to process the failing-over application calendar schedule as well as its existing application calendar schedules.

A method includes obtaining a reference tracking performance ratio and a disturbance rejection performance ratio associated with a model predictive control (MPC) controller. The method also includes filtering an output target signal for the controller using a first filter based on the reference tracking performance ratio. The method further includes filtering a feedback signal for the controller using a second filter based on the disturbance rejection performance ratio. The filters can provide two degrees of freedom for tuning reference tracking and disturbance rejection operations of the controller. The reference tracking operation of the controller and the disturbance rejection operation of the controller can be independently tunable. The reference tracking performance ratio can control how aggressively the controller responds to a change in the output target signal. The disturbance rejection performance ratio can control how aggressively the controller responds to a disturbance in the feedback signal.

An ultraviolet ray-cured paint consists of active oligomer, active diluent, light polymerization initiator and diluent; and the active oligomer is maleic anhydride-modified epoxy acrylic ester with acid value of 10-30 mg KOH/g. It has also adhesion strengthening resin containing epoxy group. It has the components includes maleic anhydride-modified epoxy acrylic ester 30-60 wt%, active diluent 15-45 wt%, adhesion strengthening resin containing epoxy group 2-5 wt%, light polymerization initiator 1.0-10 wt%, and diluent 0-20 wt%. It has high adhesion between the film and the metal substrate, high heat resistance, proper cost/performance ratio and lightened environment and human body harm, and is especially suitable for use in antirust decorative of metal surface.

This invention enables mechanical design of flexible and elastic heat pipes. It provides structural solution that reduces weight/performance ratio for traditional heat pipes and prevents freeze damages.

The invention discloses a mobile robot autonomous navigation system and method. The mobile robot autonomous navigation system comprises an infrared sensor distance measurement unit, an upper computer, a main controller and a motor, and is characterized in that the infrared sensor distance measurement unit is used for measuring the distance between an obstacle in one or more directions and a mobile robot in real time; the upper computer is used for performing path planning on the mobile robot according to the distance between the obstacle and the mobile robot, generating navigation information and sending the navigation information to the main controller; the main controller is used for controlling the motor to operate according to the navigation information sent by the upper computer so as to enable the motor to drive the mobile robot to perform autonomous walking. By using the mobile robot autonomous navigation system and method, requirements for hardware equipment and working environment of the robot are effectively reduced under the condition of ensuring certain navigation accuracy, and the cost-to-performance ratio of products is improved.

The invention provides a high-cost-performance high-power IGBT module. N(n is equals to 2) single-phase half-bridge IGBT modules 2 are connected in parallel to be combined into a high-power single-phase half-bridge IGBT module, which is supplied with power by a DC energy source 6. Loads are connected to a general power outputting port 4. The high-power IGBT module integrates an IGBT drive circuit 1 and an absorption circuit 3. A module managing control unit 5 is connected with the IGBT drive circuit 1 through an I/O interface, and the temperature of n single-phase half-bridge IGTB modules through an analog interface is collected by the module managing control unit 5. The module managing control unit dynamically distributes a work mode to each single-phase half-bridge module to optimize the system. When detecting that a certain single-phase half-bridge module goes wrong by the IGBT drive circuit, the safety control module of the module managing control unit 5 can alarm, and then the module managing control unit 5 re-distributes the work modes to the rest right single-phase half-bridge IGBT modules. The invention has the advantages that the whole power range is effective, the reliability is high, the density of the power is high, and the cost is low.

The present invention provides a method of separating a polymer from a solvent comprising introducing a superheated polymer-solvent mixture into an extruder, and isolating a polymer product, said extruder being equipped with at least one vent operated at subatmospheric pressure and at least one vent operated at about atmospheric pressure, said extruder having a screw diameter D, said extruder being operated at a feed rate FR and at a screw speed RPM such that a devolatilization performance ratio (DPR) given by Equation (I)

DPR=FR/RPM  Equation (I)

is selected from a predetermined set of devolatilization performance ratios which correlate with a target characteristic of the polymer product.

The invention discloses a handheld type large-scale three-dimensional measurement scanner system simultaneously having photography measurement and three-dimensional scanning functions. The handheld type large-scale three-dimensional measurement scanner system comprises two cameras at fixed positions, at least one pattern projector, a photography measurement module and a three-dimensional scanning module, wherein at least one of the two cameras is a multiplex camera used for both photography measurement and three-dimensional scanning; the photography measurement module is used for performing global photography measurement on a measured object through the multiplex camera and obtaining three-dimensional coordinates of a mark point on the surface of the object; the three-dimensional scanning module is used for performing three-dimensional measurement on the measured object through the two cameras and the pattern projector according to the obtained mark point serving as global positioning information of the measured object and obtaining three-dimensional contour data of the surface of the object. The handheld type large-scale three-dimensional measurement scanner system has the global photography measurement and three-dimensional scanning functions and is high in hardware integration degree, easy and convenient to operate and use, and high in cost-to-performance ratio.

The invention discloses a control device and a control method for an AC-DC (Alternating Current-Direct Current) series resonant matrix converter for capacitor charging and mainly aims at solving the problem in the prior art that the control property of a capacitor charging power supply is not high enough to meet the power supply requirement of a high-power microwave system. The control device for the AC-DC (Alternating Current-Direct Current) series resonant matrix converter for capacitor charging comprises a zero-crossing comparator, an On-Off state control unit, a timing sequence generating unit, a control parameter calculation unit, a load voltage acquisition circuit and a trigger driving circuit. The invention further discloses a control method of the control device. With the technical scheme, the control device and the control method, disclosed by the invention, have the advantages that the price/performance ratio is relatively high property, the power supply requirement of the high-power microwave system can be sufficiently met, and the practical value and the popularization value are high.

A system and method for maintaining a computer system at a predetermined cost/performance level by automatically selecting hardware and software upgrades for a given, desired level of technology and cost. A subscriber to the inventive system either has an existing computer system or selects a standard computer configuration from an available list provided through the system. The subscriber also selects a desired class of computer technology that is a function of the cost and performance level of the hardware and software components that are available to configure the computer system. Information related to any changes in technology performance and cost for computer system components is input to the system. This information is assessed by the system, and periodically various components of the subscriber's computer system are upgraded to maximize the performance of the computer system while keeping it within the cost/performance ratio of the class or level of technology selected by the subscriber. For this service, the subscriber pays a subscription fee.

In at least some embodiments, a system, comprises a first computing unit having a first type of processors. The system further comprises a second computing unit having a second type of processors, the second computing unit being coupled to the first computing unit. The first and second computing units are configured to provide parallel processing of an application based on an algorithm that distributes work evenly to a plurality of threads. The number of the threads assigned to each of the first and second computing units is based on a number of processors associated with each of the first and second computing units and a per-processor performance of the first and second computing units.

A module embedded digital control system, comprising of standard PCC input/output interface module and outer interface connecting to the outer device. Its characteristics are that it also comprises of inner solidified modulized rebuiltable CPU management control module of embedded digital control system software library, driving control module for 1 axial, 2 axial or 4 axial of driving control software library, which belongs to the inner solidified modulized embedded 1axial, 2 axial, or 4 axial, PLC management control module of the inner solidified module embedded PLC control software, and digital control inner network serial network bus for realizing network connection between the modules and multi-access management control software package . The system has used digital control inner CAN serial network bus and multi-access technologies, modulized digital control hardware control module, making the system can do modulized combination according users requirement, and the advantages are high efficiency and accuracy; high cost/performance ratio.

A method to create a drilling performance assessment ratio. The ratio includes the steps of establishing a technical minimum time limit standard for each of multiple sequential steps required for a drilling operation. Actual time performance for each of the multiple steps is measured for an actual drilling operation. The actual performances are compared to the technical time limit standards in order to produce a drilling performance ratio.

The invention discloses a dehumidifying device of a heat pump. The dehumidifying device comprises a refrigerating cycle, a dehumidifying module and a circulating air module. The refrigerating cycle comprises a first condenser, an evaporator, an expansion valve and a compressor; the dehumidifying module comprises a heat regenerator, air is fed into the heat regenerator from a hot side, a hot-side air outlet of the heat regenerator is connected with a cold-side inlet of the heat regenerator by a pipeline via the evaporator, and a cold-side outlet of the heat regenerator is connected with an air outlet pipeline; the circulating air module comprises a circulating fan, and the circulating fan is mounted beside the first condenser. The dehumidifying device has the advantages that the dehumidifying performance can be improved, the air volume of the condenser can be increased, the condensation pressures can be reduced, a comprehensive dehumidifying performance ratio of the dehumidifying heat pump can be increased by 20% at least, the operating expense can be greatly saved, the using temperature range of identical refrigerants in drying procedures can be expanded, the unit mounting expense can be reduced, and mounting spaces can be saved.

A method and apparatus for provide highly efficient traffic routing for a wide range of possible traffic matrices (TM) in an intra-domain network. That routing optimally balances the traffic loads over a range of traffic matrices so as to minimize the deviation for any particular traffic matrix from the optimal routing. Such a routing provides a guaranteed performance ratio against the best possible network routing. The invention utilizes a method of optimally configuring a traffic network based on solving a linear program to obtain the optimal routing, and then configuring the routing on the network accordingly.

The invention relates to a multi-layer composite thermal protective material and a preparation method thereof. The thermal protective material is prepared by alternately laminating thermal insulationmaterials with the first thickness and anti-infrared radiation materials with the second thickness. The multi-layer thermal protective material is formed by combination of thermal insulation, thermalprevention, gas convection resistance and infrared radiation resistance multi-heat insulation mechanism, and the purposes of high performance heat insulation, thickness space saving and lightweight weight reduction are achieved. The thermal protective material is green and environmentally friendly in production process, is a thermal protective material with high price/performance ratio, has the highest temperature resistance reaching up to 1600 DEG C, and can be applied in industrial kilns, metallurgy, heat supply network pipelines, aerospace and other fields.

A conversion factor learning unit successively updates a temperature conversion factor by learning a performance ratio of an output heat quantity with respect to an input scale number corresponding to a requested heat quantity generation to a hot water supply apparatus. The temperature conversion factor learned by the conversion factor learning unit is reflected in arithmetic operation of an FF scale number by a feedforward control unit and arithmetic operation of the FB scale number by the feedback control unit. An integral control in the feedback control unit is preferably turned off.