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361 results about "Effective action" patented technology

In quantum field theory, the effective action is a modified expression for the action, which takes into account quantum-mechanical corrections, in the following sense: In classical mechanics, the equations of motion can be derived from the action by the principle of stationary action. This is not the case in quantum mechanics, where the amplitudes of all possible motions are added up in a path integral.

Clustering type garbage automatic-identification assembly and automatic classification garbage bin for same

ActiveCN103552788AQuickly distinguish ingredientsEfficient identificationRefuse receptaclesElectricityOptical property
The invention discloses a clustering type garbage automatic-identification assembly and an automatic classification garbage bin for the same, and relates to an automatic garbage identification method, an automatic garbage identifier, an automatic classification and separation device and an automatic classification and separation container. The clustering type garbage automatic-identification assembly is characterized in that a plurality of sound, light, electrical, thermal, magnetic, image, gas, piezoelectric and electrochemical identification sensors are used for identifying the physical properties, chemical properties, form, appearance, temperature, chemical components, electrochemical characteristics, electromagnetic characteristics, optical properties, acoustic characteristics, inner structure, biological characteristics, smell, state variations, flow characteristics, motion characteristics, matter state and identification contents and characters of garbage to acquire the characteristic information of the garbage, and the characteristic information is analogically identified through a control main board (4), and is converted into effective actions to accurately throw the identified garbage into a specified container to realize the automatic classification and separation of the garbage.
Owner:邱泽国

Secure token access distributed database system

A secure token access distributed database system to provide verification of someone's or something's identity quickly and securely is provided, wherein such database and system is readily scalable from local to nationwide to worldwide use. The system specifically addresses the use of an authenticated user identification (ID) where any accepted authentication scheme can be employed in combination with a number of secure enabled databases connected by any means, including LAN, WAN, Internet, and dedicated lines, to provide value-added data in real-time at the main point of security contact. Furthermore, the instant invention provides a concept by which a potentially unlimited number of secure enabled databases containing various kinds of data potentially useful to a requesting entity, are either connected by some network means, or exposed to the Internet through a secure connection. Data transfer may also be bi-directional. As part of the security incident information exchange, data may not only be received by the requesting entity, but the provider database may also receive updated information. Requests may be progressive in nature. Data contained in a response from one database may cause the requesting application to send out a new, modified request for the ID based on that data. Moreover, continual update of the incident data may continue even after sufficient information has been received to make a security decision, e.g., grant entry. If subsequent data arrives that could affect that decision, it may provide authorities and security personnel with timely data and an opportunity for appropriate and effective action.
Owner:VERIFONE INC

Electroacoustic transducer

The invention provides an electroacoustic transducer capable of efficiently carrying out conversion from electric signals to sound or from sound to electric signals at low distortion, which requires no special shape nor processing as a magnet, requires no minute setting of the magnetization direction, and sets a distribution of higher magnetic flux densities for effective action with respect to an electric conductor of an acoustic diaphragm than in a magnet plate magnetized in the radius direction although the production process thereof is remarkably simple as in a magnet plate magnetized in the radius direction.
The electroacoustic transducer is provided with at least any one of the center area magnet magnetized so that a component parallel to the center axis of the acoustic diaphragm is turned into the forward direction of the acoustic diaphragm at the position that becomes the center side of the base area magnet and the outer circumference area magnet magnetized so that a component parallel to the center axis of the acoustic diaphragm is turned into the backward direction of the acoustic diaphragm at the position that becomes the outer circumference side of the base area magnet, in addition to a base area magnet magnetized so that a component parallel to the vibration plane of the acoustic diaphragm is turned into the radius direction toward the center of the acoustic diaphragm with respect to the magnetization direction of respective partial areas of a magnet plate.
Owner:HANADA AKITO

Ecological organic compound fertilizer and preparation method thereof

The invention discloses an ecological organic compound fertilizer which is characterized by being prepared from the following raw materials in parts by weight: 40-45 parts of straw powder, 12-14 parts of ramulus mori powder, 20-23 parts of silkworm excrement, 12-14 parts of peanut shells, 5-7 parts of bock greenbrier rhizome, 34-38 parts of urea, 20-24 parts of calcium superphosphate, 18-20 parts of dipotassium phosphate, 14-17 parts of ammonium nitrate, 12-16 parts of humic acid, 2-3 parts of lime, 2-3 parts of hydroxypropyl methyl cellulose, 1-2 parts of magnesium stearate, 3-4 parts of an EM (Effective Microorganisms) fungicide, 4-6 parts of a developing agent and a proper amount of water. The fertilizer disclosed by the invention contains more and reasonable nutritional ingredients and can satisfy all fertilizers required by plants in the growing period, the fertilizer is excellent in slow release performance, has a long-term effective effect, supplements trace elements of soil, improves the yield and quality of the plants, is beneficial to human health and further improves the soil fertility at the same time. Meanwhile, the efficacy of the fertilizer can be further exerted to the maximum extent, and the application amount of the fertilizer is reduced, resources are saved, and the environment is protected. The fertilizer has economical and environmental benefits.
Owner:DANGTU COUNTY KEHUI TRADING

Model prediction-based torque control method for flux-switching permanent magnet synchronous machine

ActiveCN103762926APrecise control of switching vector changesPrecise control workElectronic commutation motor controlAC motor controlPermanent magnet synchronous machineEffective action
The invention discloses a model prediction-based torque control method for a flux-switching permanent magnet synchronous machine. The model prediction-based torque control method comprises the following steps: combining the switch tube states of a motor inverter to obtain eight sets of switch vector signals; at the current moment K, under each set of vector signals of the inverter switch, predicting a p-phase winding current (please see the specification for the formula) at the next moment K+1 to obtain current prediction values (please see the specification for the formula) of a shaft d and a shaft q; predicting motor torque (please see the specification for the formula) and motor flux linkage (please see the specification for the formula) at the next moment k+1; calculating a cost function (please see the specification for the formula) to obtain the vector signal of the inverter switch when the cost function is the smallest; defining m (please see the specification for the formula), controlling the effective acting time of the vector signal of the inverter switch when the cost function is the smallest in a single sampling period according to a value of m to complete torque control of the flux-switching permanent magnet synchronous machine. The method can accurately control change of the vectors of the inverter switch, enables the motor torque fluctuation and the flux linkage fluctuation to be the smallest, and the effective acting time of the inverter switch is adjusted through the duty ratio, so that the on and off frequency of the inverter can be effectively reduced.
Owner:HUAZHONG UNIV OF SCI & TECH

Electric power information system cloud safety guarantee system and implementation method thereof

The invention discloses an electric power information system cloud safety guarantee system and an implementation method thereof. The electric power information system cloud safety guarantee system comprises a risk management module, a network and infrastructure safety module, a platform safety module and an application safety module, and a shared safety module, wherein the risk management module, the network and infrastructure safety module, the platform safety module and the application safety module are arranged successively from top to bottom; and the shared safety module is arranged among the network and infrastructure safety module, the platform safety module and the application safety module. The electric power information system cloud safety guarantee system and the implementation method thereof utilize targeted effective actions for different hierarchical structures and needs for a cloud computing platform in an electric power information system, and are integratively in linkage with multi-layers, and interact and coordinate with each other, and are integrated with monitoring and detection of abnormal behavior events, virus searching and killing, interdicting defense and attack and multi-protection, and can realize real-time intelligent monitoring of virus and attack, integration of detection analysis and safety defense, and can quickly perform real-time intelligent protection and can clean the virus and useless files, and can reduce the consumption, and can perform stereo, deep and dynamically protective comprehensive monitoring and defense for the cloud computing platform in the electric power information system.
Owner:SHANGHAI DIANJI UNIV

Operating device and operating method for three-dimensional virtual chessboard

The invention provides an operating device and an operating method for a three-dimensional virtual chessboard. The operating device is used for a tablet personal computer which is provided with at least two cameras and one projector. The operating device is characterized in that the device comprises an image identifying module, a starting action determining module, a finishing action determining module, an effective action determining module, a mapping module and a chessboard updating module, wherein the image identifying module is used for identifying the image captured by the two cameras, the starting action determining module is used for determining the start of the chess playing action so as to determine that which chessman needs to be moved, the finishing action determining module is used for determining the finish of the chess playing action according to the image identifying result so as to determine the final position to which the chessman needs to be moved, the effective action determining module is used for determining whether the final position to which the chessman needs to be moved is an effective position or not according to the chess playing rule, the mapping module is used for mapping the final position to which the chessman needs to be moved to the coordinate position of the chessman on the tablet personal computer if the final position to which the chessman needs to be moved is the effective position, and the mapping module is used for updating the chessboard displayed on the tablet personal computer.
Owner:SAMSUNG SEMICON CHINA RES & DEV +1

Feed-forward voltage compensation-based direct-current side oscillation suppression method for metro traction converter

ActiveCN107612449AMake up for time lagCompensating for technical issues with limited bandwidthElectronic commutation motor controlAC motor controlVoltage vectorReference current
The invention discloses a feed-forward voltage compensation-based direct-current side oscillation suppression method for a metro traction converter. Proper damping parameters are selected according toa stability criterion condition. Meanwhile, based on the principle that the ratio of effective vectors is maximum and the disturbance is minimum, a feed-forward voltage compensation parameter of a dqshaft is calculated. According to the principles of equal effective action vectors and power conservation, a reference voltage vector after the amplitude-limiting adjustment is obtained through calculation. As a result, the direct-current side stability control of a metro traction transmission system under the compensation over-modulation condition is ensured. According to the invention, the dynamic compensation for the feed-forward voltage is adopted, and the oscillation of the direct-current side voltage and the direct-current side current during the operation process of the traction transmission system is suppressed. The stability of the voltage at the direct-current network side is ensured. Meanwhile, the over-modulation condition caused by voltage compensation is considered, so thatthe effectiveness of the oscillation suppression method under the over-modulation condition is ensured. The condition that existing reference current compensation schemes are easily limited by currentloop bandwidth is avoided, so that the faster dynamic response is achieved.
Owner:SOUTHWEST JIAOTONG UNIV

Intelligent environment-friendly barrel control method, device and intelligent environment-friendly barrel

ActiveCN105425665AEasy to throw inAvoid the problem of randomly throwing garbage near the outside of the bucketProgramme controlComputer controlIntelligent environmentEffective action
The present invention discloses an intelligent environment-friendly barrel control method, a device and an intelligent environment-friendly barrel. The method comprises a step of controlling an infrared emission tube to emit a first pulse waveform infrared signal for one time for the interval of a first preset time, a step of detecting the state of an infrared reception tube and determining whether the infrared reception tube acts effectively, a step of controlling the infrared emission tube to emit a second pulse waveform infrared signal for one time for the interval of a second preset time when the infrared reception tube acts effectively and emitting the signal for a first preset time, and a step of controlling a motor to act and opening the upper cover of the environment-friendly barrel if the effective action of the infrared reception tube is detected for a continuous second time. According to the technical scheme provided by the invention, when people carrying garbage approaches the intelligent environment-friendly barrel, the upper cover is opened automatically, and people can directly throw the garbage into the barrel conveniently, which is very convenient.
Owner:GREE ELECTRIC APPLIANCES INC

Preparation method of cellulose based polyphenols natural antioxidant compound

The invention discloses a preparation method of a cellulose based polyphenols natural antioxidant compound. The compound formula comprises a matrix raw material, a nanometer/micrometer size level cellulose type substance loading the matrix raw material or a derivative of the substance, a stabilizer, an auxiliary raw material and an aqueous/organic solvent solution. The preparation method comprises the following technological procedures: preparing the solution with an aqueous/ a small amount of organic solvent, of a polyphenols natural antioxidant; preparing a colloidal solution of the nanometer/micrometer size level cellulose type substance or the derivative of the substance; adding the stabilizer into the colloidal solution or adding no stabilizer; preshearing to obtain an aqueous carrier colloidal solution with appropriate viscosity; preparing an emulsion or particles of the cellulose based polyphenols natural antioxidant compound. According to the preparation method, through the loading function of a cellulose based carrier, noneffective decomposition of the polyphenols natural antioxidant is remarkably reduced, the validity period of the effect of the antioxidant is improved, and the antioxidant/free radical removing effective acting time can be prolonged by 300% or above under the optimal dosage.
Owner:ZHEJIANG JINCHANG SPECIALTY PAPER CO LTD

Vertical electromagnetic stirring method for controlling casting blank center quality

The invention belongs to the technical field of continuous casting electromagnetic stirring, and particularly relates to a vertical electromagnetic stirring method for controlling casting blank center quality. In the continuous casting production process, a traveling wave magnetic field type stirrer is arranged on the side face of a casting blank, and the overall direction of electromagnetic force generated by the traveling wave magnetic field stirrer in the casting blank is parallel to the direction of the center line of the casting blank. Traveling wave magnetic field stirrers in different shapes can be selected according to different cross-section shapes and sizes of casting blanks. The supply frequency of the vertical electromagnetic stirrer is 0.5-50 Hz, and the current of the vertical electromagnetic stirrer is 50-3000 A. By means of the method, melt in the casting blank center area can generate upward or downward forced convection movement along the center line of the casting bank, the effective action area of electromagnetic stirring in the length direction of the casting blank is enlarged, mixing of an upper high-temperature melt area and a lower low-temperature melt area of the casting blank center area is intensified, the feeding capability of upper melt of the casting blank center area to lower melt in solidification is improved, and uniformization of temperature and solute distribution in the casting blank is promoted.
Owner:NORTHEASTERN UNIV
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