235 results about "Rate difference" patented technology

An electronic control unit calculates a target yaw rate in accordance with a vehicle speed and a steering angle and calculates the yaw rate difference on the basis of the target yaw rate and an actual yaw rate. The electronic control unit estimates the grip factor of a front wheel to road surface and sets a distribution ratio for distribution of a vehicle-control target value among actuators of a steering system, a brake system, and a drive system in accordance with the estimated grip factor. The electronic control unit controls the actuators of the three systems in accordance with control instruction values distributed on the basis of the vehicle-control target value and the distribution ratio.

A plural component mixing system includes an automatic balance feature to balance the pressure of two or more components as they are mixed. The pressures or flow rates of the two components are monitored. If there is a difference in pressure or flow rate greater than a specified amount, a bleed valve is opened for a short period of time to balance the flows. A computer with a touch screen is used to set the pressure and flow rate differences that trigger the bleed, and to set the time period for the bleed.

An embodiment of the invention provides an electric power scheduling flow data abnormity detecting method based on an isolation forest algorithm. The method comprises the steps of sampling a data setthrough a system sampling method, establishing sub-forests, and forming a base forest abnormity detector; determining an abnormity condition of data which enter a sliding window through the base forest abnormity detector; performing Bernoulli sampling on the data which enter the sliding window, determining whether the data are stored in a buffer area, and when the data of the sliding window are full, determining a window data abnormity rate in real time; according to a fact that a buffer area data volume and sliding window data abnormity rate exceed threshold values, selecting a model updatingstrategy with a relatively low or relatively high updating proportion; and calculating an abnormity rate difference between each sub-forest and the base forest based on the updated data set, eliminating the sub-forests with relatively large differences, and establishing a plurality of sub-forests for supplementing, and forming a new base forest abnormity detector, thereby realizing updating. Theelectric power scheduling flow data abnormity detecting method can improve power flow data abnormity detecting accuracy.

When switching an exhaust throttle valve from full opening to a closed position to warm up an engine, an intake throttle valve is fixed to full opening, an EGR valve is fixed to full closing, and a variable turbo-vane is fixed to a predetermined opening degree to accelerate a gas flow rate from an intake passage to an exhaust passage, a fully opened flow rate is detected and stored by gas flow rate detection means, with the exhaust throttle valve being full opening, after which an instruction is issued to the exhaust throttle valve to switch from the full opening to a closed position for detecting a closed position flow rate, a flow rate difference is determined by deducting the detected closed position flow rate from the stored fully opened flow rate, and failure of the exhaust throttle valve is judged when the flow rate difference is less than a predetermined threshold value.

A protection method of the industrial frequency variation ratio differential motion in the generator. A industrial frequency variation ratio differential motion element with high sensitivity is formed by the power variation of the machine-end current and neutral-point current in the generator microcomputer protection equipment and can be used to detect the low current fault which can not be or rarely be reflected in the routine steady ratio differential motion. The invention only reflects the fault component, and is unaffected by the load current in the normal running of the generator and transformer and is very little affected by the transition resistance. It adopts the high brake coefficient anti-TA (the current mutual inductor) saturation, and uses the floating threshold technology. The protection has a high sensitivity and a good reliability.

The invention provides a nitride semiconductor light-emitting device comprising gallium nitride semiconductor layers formed on a heterogeneous substrate, wherein light emissions having different light emission wavelengths or different colors are given out of the same active layer. Recesses 106 are formed by etching in the first electrically conductive (n) type semiconductor layer 102 formed on a substrate with a buffer layer interposed between them. Each recess is exposed in plane orientations different from that of the major C plane. For instance, the plane orientation of the A plane is exposed. An active layer is grown and joined on the plane of this plane orientation, on the bottom of the recess and the C-plane upper surface of a non-recess portion. The second electrically conductive (p) type semiconductor layer is formed on the inner surface of the recess. With the active layer formed contiguously to the semiconductor layer in two or more plane orientations, a growth rate difference gives rise to a difference in the thickness across the quantum well (active layer), giving out light emissions having different light emission wavelength peaks or different colors.

The invention provides a defect rate detecting method of an oil immersed type main transformer. The defect rate detecting method includes obtaining determinant attributes of the oil immersed type main transformer serving as a sample through detection, establishing a regression model of the determinant attributes and a defect rate of a device, and accurately predicting the defect rate of an oil immersed type main transformer to be detected by means of the regression model and the determinant attributes of the oil immersed type main transformer to be detected. The defect rate reflects the whole defect level of the oil immersed type main transformer of power grids, and various defects in power equipment can be early found and timely eliminated, so that the phenomenon that large-scale loss of power failure of the power grids is caused by the fact that the defects are developed into faults is avoided. According to defect rate differences among different kinds of the devices, maintainers can purposefully perform focused inspection and maintenance to prevent the defects from developing into device faults; production departments can formulate production personnel plans and spare part requirements and predict a future change trend of the defect rate of the devices in combination of development planning of the power grids to guide producing activities of the power grids to well develop.

The invention discloses a display substrate, a display panel and a display device. Since the color resistance of at least one color in a colorful-film structure of the display substrate consists of at least two layers of light-filtering films which are arranged in a laminating manner; in the color resistance consisting of at least two layers of light-filtering films, the refractive indexes of all the light-filtering films are increased gradually along the direction from a substrate base plate to a transparent conductive oxide film layer, and the refractive index of one layer of light-filtering film adjacent to the substrate base plate is greater than the refractive rate of the substrate base plate, and one layer of light-filtering film adjacent to the transparent conductive oxide film layer is less than the refractive index of the transparent conductive oxide film layer. Therefore, the display substrate, the display panel and the display device have the advantages that in the process that light enters from the transparent conductive oxide film layer, passes through the colorful-film structure and then exits from the substrate base plate, the full-reflection phenomenon caused by larger refractive-rate difference between the transparent conductive oxide film layer and the substrate base plate can be reduced, so that the loss of the light in the transporting process of the display panel can be reduced and further the display brightness of the display device can be increased.

A microfluidic device comprises at least one reactant passage defined by walls and comprising at least one parallel multiple flow path configuration comprising a group of elementary design patterns being able to provide mixing and/or residence time which are arranged in series with fluid communication so as to constitute flow paths, and in parallel so as to constitute a multiple flow path elementary design pattern, wherein the parallel multiple flow path configuration comprises at least two communicating zones between elementary design patterns of two adjacent parallel flow paths, said communicating zones being in the same plane as that defined by said elementary design patterns between which said communicating zone is placed and allowing passage of fluid in order to minimize mass flow rate difference between adjacent parallel flow paths which have the same flow direction.

An application processor circuit has SD-compatible interface protocols and can perform both host and slave functions. The circuit includes SD bus interface logic for realizing SD interface signals defined in SD-compatible interface protocols; system bus interface logic for performing the interface function on the system bus side; a data buffer for adjusting the data transfer rate difference between the SD bus interface and the system bus interface; a data buffer controller for controlling access to the data buffer; and a configuration unit for configuring the circuit to work in the host mode or slave mode. The SD-compatible interface protocols include MMC/SD/SDIO protocol, high speed MMC/SD/SDIO protocol, and CE-ATA interface protocol. The SD host logic and slave logic are incorporated in a single module to support both the SD host and slave functions, so as to achieve more convenient data transfer between electronic devices.

The invention discloses an adsorption technology using air flow negative pressure and a wall climbing robot operation platform which realizes adsorption and walking on a wall surface by using the adsorption technology. In the platform, high-speed air flow is generated by using gaps between an adsorption disk and the wall surface by a fan, so negative pressure is generated due to flow rate difference of two sides of the adsorption disk and the adsorption and walking on the wall surface is finished under the friction action of walling wheels and the wall surface. The adsorption between the robot and the wall surface in a gap way is realized by fully using air flow negative pressure, so that the adsorption efficiency is high; self weight is light, and relatively large redundant load is achieved so as to meet the wide climbing operation requirements; the wall climbing robot operation platform is suitable for wall surfaces made of various materials, such as glass, metal, ceramic tiles, coating, cement and the like; the wall climbing robot operation platform can be applied to an arc wall surface with a small curved surface; and the wall climbing robot operation platform has a simple structure, and low manufacturing cost and is favorable for industrial production and popularization.

The invention discloses a method and a device for testing a loose circle of surrounding rock, relates to the technical field of testing of the loose circle of the surrounding rock and aims at enabling the operation to be simpler and the test to be more precise. The method comprises the following steps of injecting fluid into at least two preset hole sections of a drill hole in a preset time period under a preset pressure condition; and determining the thickness of the loose circle of the surrounding rock according to the flow rate difference of the fluid injected into the at least two preset hole sections. The device for testing the loose circle of the surrounding rock comprises a test tube, at least two capsules, through holes and a flow meter, wherein the at least two capsules are arranged on the periphery of the test tube at intervals; the through holes are arranged in a tube section of the test tube between each two adjacent capsules; fluid inputted in the tube section between each two adjacent capsules only can flow out through the through holes in the tube section between each two adjacent capsules; an outlet of a capsule expansion medium conveyance tube is arranged in one of the capsules so that the interiors of each two adjacent capsules are communicated through a pipeline; and the flow meter is arranged on the pipeline of a test fluid conveyance pipe. The method and the device for testing the loose circle of the surrounding rock, disclosed by the invention, are suitable for the tests in the thickness of the loose circle of the surrounding rock and the distribution of fracture regions of the loose circle.

Techniques for using the Internet to establish an international telephone call using a callback service where there is a rate difference between the source and destination countries are disclosed. In one approach the customer sends the call information to the callback service by connecting to their website and by completing an Internet based form. Alternatively call information can be provided in an e-mail. The callback service database places the call soon after the call information is received.

The invention discloses a preparation method of a polyacrylonitrile spinning solution. The polyacrylonitrile spinning solution is a solution of a main monomer and a comonomer polymer, the main monomer is acrylonitrile with the mole content of 90-99.9%, and the comonomer is itaconic acid mono-methyl ester ammonium compound with the mole content of 0.1-10%. The quality of the polymer solution has direct influence on protofilament performance, and good hydrophily, narrow molecular weight distribution and relatively uniform chain structure are the necessary conditions for obtaining high-performance carbon fibre protofilament. Itaconic acid mono-methyl ester ammonium compound with stronger hydrophily is used for replacing itaconic acid mono-methyl ester as the comonomer, and the hydrophily of the obtained spinning solution is higher than that of the itaconic acid mono-methyl ester, so the problem of loose solidified filament structure caused by increased diffusion rate difference between solvent and nonsolvent in the fibre because the hydrophily of the spinning solution is reduced is avoided. The copolymerization and the polymer chain structure of the invention are relatively easier to control, so the polyacrylonitrile spinning solution with high carbon fibre mechanical properties can be obtained.

The invention discloses a through silicon hole structure with a step, which comprises a semiconductor substrate and a through hole penetrating through the semiconductor substrate and having the step, wherein an insulation layer, an adhesion layer and a barrier layer are sequentially deposited on the side wall of the step through hole; a metal conductor is filled in the through hole; an interconnecting structure formed by sequential deposition of the insulation layer, the adhesion layer, the barrier layer and a conductive layer is deposited on the surface of the semiconductor substrate; and the conductive layer in the interconnecting structure is connected with the metal conductor. The invention also provides a manufacture process of the through silicon hole structure. The step in the through silicon hole can allow copper cylinder protruding height difference caused by local electroplating rate difference in an electroplating hole-filling process, and avoids silicon wafer breakage caused by the problem in a chemical mechanical polishing (MCP) process and a bonding process.

The invention provides an optimization method for artificial noise direction modulation based on a frequency control array. The method comprises the steps: enabling a transmitting end to obtain the azimuth and distance of a legal receiver, and extracting a normalized beam vector; calculating the maximum confidential rate difference between a maximum legal receiver and an adjacent eavesdropping receiver; calculating a frequency compensation vector with the maximum confidential capability through a non-convex optimization algorithm, and then calculating a legal receiver guide vector; calculatinga normalized artificial noise projection matrix according to the orthogonality of the artificial noise and the legal receiver guide vector, and obtaining an artificial noise baseband signal based onthe frequency control array. The method realizes the dual control of angle and distance, and realizes the maximum confidential rate difference between the legal receiver and the adjacent eavesdroppingreceiver, and ensures higher-precision physical layer wireless security communication.

The invention provides a grain condition prediction system that comprises a plurality of temperature sensors, a storage unit, an analysis unit and an alarm unit, wherein the temperature sensors detect the temperature of all positions in a grain bulk; the storage unit is used for storing the current detection data and the historical detection data; the analysis unit comprises a calculation module and a temperature change rate comparison module; the calculation module calculates the following parameters at each detecting position: practical temperature change rate, prediction temperature, prediction temperature change rate and the temperature change rate difference between the practical temperature change rate and the prediction temperature change rate; the temperature change rate comparison module is used for comparing the temperature change rate difference at each detection position with the temperature change rate difference threshold of the detection position; the analysis unit alsocomprises a temperature comparison module that is used for comparing the currently practical detection temperature value with the temperature threshold at each detection position; and an alarm can begiven under the alarm condition of whether the temperature change rate difference is more than or equal to the temperature change rate difference threshold at the detection position and whether the currently practical detection temperature value is more than or equal to the temperature threshold at the detection position.

The invention discloses a preparation method for a fabry-perot sensor based on a corroded high doping optical fiber. The preparation method comprises the following steps: soaking the end face of the high doping optical fiber into a corrosive liquor for corrosion so as to form micropores on the end face; and welding the micropores of two corroded optical fiber oppositely, or welding the micropores of one corroded optical fiber with the end face of a monomode optical fiber to form the optical fabry-perot sensor. A mixed liquor of hydrofluoric acid and strong inorganic acid is taken as the corrosive liquor; the used optical fiber is a fiber core high doping optical fiber; the high doping concentration further increases the corrosion rate difference between a cladding and the fiber core; the strong inorganic acid in the corrosive liquor reduces the concentration of the hydrofluoric acid, reduces the corrosion rate of the corrosive liquor on the cladding, reduces the corrosion of the cladding while simultaneously improving the corrosion depth of the fiber core, and consequently greatly improves the mechanical properties of the welded fabry-perot sensor.

The invention provides a multi-sensor compact combination train combined positioning method based on a pseudo range/a pseudo range rate. The method comprises the following steps of: recursively calculating the position, speed and attitude information of a train by INS, calculating the geometric distance between a satellite and the train according to the train position calculated by the INS and theGNSS satellite position, calculating a pseudo range difference value between a pseudo range measured by GNSS and the geometric distance between the satellite and the train calculated by the INS, calculating a pseudo range rate difference value between a pseudo range rate measured by the GNSS and the speed of the train calculated by the INS, and calculating a speed difference value between the speed of the train calculated by the INS and the speed measured by OVS; inputting the geometric distance between the satellite and the train and various difference values as the measurement input of thesystem filtering, and correcting the error of the INS system by adopting standard Kalman filtering. By collecting GNSS original data, INS measurement data and OVS measurement data, the method can continue positioning by an INS/OVS combined system in a GNSS signal failure environment so as to ensure continuous and seamless positioning of the train.