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124results about How to "Solve overload" patented technology

Personalized recommendation method and system based on probability model and user behavior analysis

InactiveCN105574216AAccurately characterize acquisition needsSolve overloadSpecial data processing applicationsPersonalizationOriginal data
The invention discloses a personalized recommendation method and system based on a probability model and user behavior analysis. The method includes the steps that article information and article attribute information are extracted, and operation behaviors of users on articles are extracted; interest points are obtained according to the article attribute information and the operation behaviors of the users on the articles; user interest similarity is obtained according to the operation behaviors of the users on the articles, and similar users are obtained; a decay factor is obtained according to the operation behaviors of the users on the articles based on the time dimension, and a user model is set up; interest characteristic information, at all dimensions, of the users is obtained according to the user model; after filtering, a recommendation algorithm is adopted to generate results to be recommended, and algorithm fusion is conducted to obtain personalized recommendation results of the users. After original data is preprocessed, the user model is set up, the interest points of the users and essential information acquisition requirements are depicted accurately to provide accurate personalized recommendation, and therefore the problems of information overload and long-tail articles in the network are solved.
Owner:DATAGRAND TECH INC

Three-bus four-section standby power automatic operation device self-adaption in service and out of service control method

The invention discloses a three-bus four-section standby power automatic operation device self-adaption in service and out of service control method. The method comprises the steps of before standby power automatic operation device is in service under a voltage of 10 kV, calculating the transformer load condition after the spare power automatic switching is performed the by using an algorithm of summation of effective values of bilateral current, so that the problem that a transformer is overloaded after automatic operation is solved; simultaneously providing an intelligent equalization load function of the standby power automatic operation device in a three-bus four-section connecting method, choosing whether the equalization load function is performed or not intelligently according to a load situation of an inlet wire, and improving the usage efficiency of the transformer; and monitoring and calculating the load situation in real time after the standby power automatic operation device is in service, and load intertripping is performed automatically when the transformer is overloaded, so that the safety of the transformer is guaranteed. According to the method, logical data acquisition quantity of a whole action is small, a device is convenient to implement and the engineering popularization applicability is good.
Owner:广州穗华能源科技有限公司

Semantics-based sci-tech information processing method and system

The present invention discloses a semantics-based sci-tech information processing method and system, and belongs to the technical field of data processing. The method comprises the following steps: acquiring network data; according to a Chinese-English bilingual parallel corpus, translating the network data into Chinese / English by means of a decoding algorithm; generating an abstract according to the translated network data; performing classification according to the abstract, and generating a class tag; and storing the translated network data, the abstract and the class tag into a full-text retrieving database. According to the method and system disclosed by the present invention, by using technologies such as automatic search of sci-tech information, automatic abstracting of the sci-tech information and automatic classification of texts, sci-tech information related to scientific development, technical innovation and recent news can be automatically acquired by means of a public information channel from the Internet, so that acquisition accuracy is improved, the cross-language content understanding barrier is eliminated, the problem of information overload is solved, and the efficiency of reading and understanding information of the user is increased.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Mobile Web service recommendation method and collaborative recommendation system based on user behavior analysis

The invention discloses a mobile Web service recommendation method and a collaborative recommendation system based on user behavior analysis. The method comprises the steps of first constructing a Web service prediction model, and searching two optimal associated users who are the most similar to the a target user in long-term habit and short-term mood through intelligent terminal side user browsing data and wearable device side user physiological data. Therefore, data of the two optimal associated users are used to enrich a sample library of the target user prediction model, so as to achieve the introduction of a sample enrichment mechanism with the minimized noise. A Web resource storage mechanism based on a feature vector is designed, and according to a model prediction result, accurate recommendation of the mobile Web service is realized. According to the scheme of the invention, through the interactive cooperation between an intelligent terminal and a wearable device, application reconfiguration is performed on the wearable device side physiological data, and a user behavior is analyzed from multiple angles of view and multiple dimensions, so that accurate prediction and recommendation of services are realized, thereby improving user experience.
Owner:NANJING UNIV OF POSTS & TELECOMM

Internet-based multi-people asynchronous chorus mixed sound synthesizing method and synthesizing system

ActiveCN103021401AImprove sound qualityTroubleshoot issues like volume imbalanceTransmissionSpeech synthesisSynthesis methodsNoise
The invention relates to an internet-based multi-people asynchronous chorus mixed sound synthesizing method and a synthesizing system. The synthesizing method includes that (1) handheld mobile terminals send chorus bulletin information of a certain song to a system background server; (2) the system background server sends the chorus bulletin information to the handheld mobile terminals which are connected with the system background server to establish a chorus database; (3) the handheld mobile terminals visit the chorus database through database numbers; (4) the system background server receives recorded audio information and real-timely performs tone quality processing on the recorded audio information to generate chorus mixed sounds; and (5) one or more chorus mixed sounds is / are stored in the chorus database, and information of the current state of the chorus database is respectively sent to the handheld mobile terminals and a web server to be updated. The synthesizing system comprises the system background server, the web server and a plurality of handheld mobile terminals. Compared with multi-people asynchronous chorus mixed sound synthesizing methods and synthesizing systems, the internet-based multi-people asynchronous chorus mixed sound synthesizing method and the synthesizing system have the advantages that the tone quality of choral works is good, noises are few, network interactivity is brought into full play and the like.
Owner:梦响强音文化传播(上海)有限公司

Forging process for nuclear power rotor and other large shaft parts

ActiveCN102172766AIncrease the number of pulling tripsIncrease the effect of forging through compactionEngine componentsNuclear powerIngot
The invention discloses a forging process for nuclear power rotor and other large shaft parts, which can be used for effectively solving the forging problem of a high-grade rotor with a super large specification. The process specifically comprises the following steps of: (1) drawing out a steel ingot to form a flat square by using a WHF (Wide die Heavy blow Forging) method; (2) performing erecting and upsetting on the flat square; (3) drawing out the upset steel billet to the flat square again by using the WHF method; and (4) compacting the four sides and the center of the flat square, wherein the 'flat square' specifically means a cuboid-shaped steel billet. In accordance with the result of flaw detection (UT(Ultrasonic Test) and MT (Magnetic particle Test)), no flaw (phi is above 0.6), for which recording is required, is found in a 1100MW rotor piece manufactured by using 550t steel billets, and the quality is superior; based on the dimension of a workpiece, all the dimensions of various parts of a forge piece can meet the processing requirement, and the forging allowance is uniform; the control state of forging grain size is deduced from a UT state subsequent to thermal treatment after forging, the desired effect is completely achieved, and no phenomenon of coarse crystal or mixed crystal happens.
Owner:CHINA ERZHONG GRP DEYANG HEAVY IND

Stone non-curtain hanging piece, non-curtain unit and keel-free non-curtain system

ActiveCN103938830AHigh precisionReduce difficulty and time-consumingCovering/liningsWallsFastenerMetal
The invention provides a stone non-curtain hanging piece, a non-curtain unit and a keel-free non-curtain system. The stone non-curtain hanging piece comprises a hanging piece body, a non-metal connector, a metal connector and a fastener. The hanging piece body is a T-shaped block composed of a first extruding aluminum alloy piece and a second extruding aluminum alloy piece, wherein the first extruding aluminum alloy piece and the second extruding aluminum alloy piece are fastened into a whole through screws. The front end face of the first extruding aluminum alloy piece and the front end face of the second extruding aluminum alloy piece are respectively provided with a claw, wherein the claws are symmetrically arranged in an inwards inclining mode. The hanging piece body, the non-metal connector and the metal connector are connected in sequence. The invention further discloses the non-curtain unit provided with the hanging piece, and the non-curtain system. Firstly, construction can be conducted on a stone non-curtain structure according to a keel-free hanging and pasting technology, namely, no keel is used; secondly, the stone non-curtain structure has the cold-bridge and hot-bridge isolation function, the opening collapsing phenomenon on the notch portion of stone is avoided when the stone non-curtain structure is used for a long time, and the overall service life of the stone non-curtain structure is prolonged.
Owner:赵希誉 +1

Traffic information active push method and system based on LBS

InactiveCN107293142ASolve overloadSolve the problem of information competitionRoad vehicles traffic controlTransmissionSimulationBASIC DATA STRUCTURE
The invention discloses a traffic information active push method based on LBS (Location Based Service). The traffic information active push method based on LBS includes the steps: acquiring traffic information; combining with the traffic information, establishing a basic data structure of a traffic information sequence; calculating the information sequence updating number; generating a traffic information recommending sequence; generating a traffic information playing sequence; and pushing and displaying the traffic information playing sequence. The invention also provides a traffic information active push system based on LBS. The traffic information active push method and system based on LBS are characterized in that according to the historical locus position data of a driver and the current GPS position, determining whether the driver is in the range of daily activity and whether different push strategies are taken after approaching the destination, and determining the playing priority and display intensity of information sequences; combining with the space condition, selecting the traffic information sequence on the front correlated road to form a traffic information recommending sequence MS; and according to the length of the road, the driving speed of the current target vehicle, the information updating time and the playing strategy, playing the traffic information playing sequence MS'.
Owner:BEIJING JIAOTONG UNIV

Scheduling optimal configuration method for smart grid

The invention relates to a scheduling optimal configuration method for a smart grid. The scheduling optimal configuration method for the smart grid is characterized in that the method comprises the following steps that: 1) an equivalent model is established, and with districts adopted as the unit, the number and locations of power supply power stations are determined by a power supply bureau, and the power stations are connected with each other in pairs through straight lines, such that an undirected weighted power station power supply model can be formed; 2) model parameter calculation is performed: according to the undirected weighted power station power supply model formed in the step 1), with distances between every two power stations adopted as parameters, calculation is performed according to a situation that AC power loss is 0.05kVA per km, such that a power loss matrix table between every two power stations can be made; 3) according to the power loss matrix table made in the step 2), a Dijkstra algorithm is adopted to perform smart grid resource scheduling simulation; 4) an ant colony algorithm is adopted to perform visualization calculation on the power loss matrix table made in the step 2) and perform simulation analysis on smart grid resource scheduling; and 5) a scheduling optimal configuration method for the smart grid is determined according to the step 3) and the step 4). With the scheduling optimal configuration method for the smart grid of the invention adopted, the quantity of calculation can be decreased, and acceptable scheduling configuration schemes can be obtained fast. The scheduling optimal configuration method for the smart grid has the advantages of fast convergence and high efficiency.
Owner:CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD

Constant power control method for coal mining machine and operating handle

The invention relates to a power control method for a coal mining machine based on touch technology of a magneto-rheological valve and a complete operating handle device. The method is realized by the following steps: (1) extracting output current signals of a cutting motor in a coal mining machine set, and sending the output current signals to a control computer; (2) processing the output current signals in the control computer, and converting the output current signals into control signals through D / A conversion to adjust a current controller; (3) using the output current of the current controller to adjust the current of magnet exciting coils in a magneto-rheological device; (4) setting an operating handle and a moving piston in the magneto-rheological device into fixed connection and synchronous movement to form a state that an operator directly feels the change of the output power in the coal mining machine set during resistance change by means of the operating handle; and (5) quickly adjusting the output power of a pulling motor in the coal mining machine set by means of the pushing and pulling operations of the operating handle so as to stabilize a constant power working state of the coal mining machine set.
Owner:HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Energy-saving device based on low-voltage line load balance

The invention discloses an energy-saving device based on low-voltage line load balance. The energy-saving device comprises a low-voltage master control switch, wherein the first end of the low-voltage master control switch is connected with the secondary side of a transformer, a primary side of the transformer is used for being connected with the power grid power supply end, the second end of the low-voltage master control switch is connected into a low-voltage bus, a multiple balance power distribution lines are further connected onto the low-voltage bus and are series circuits formed by sequentially connecting a wire outlet switch and N sectioned switches, the wire outlet switch is connected into the low-voltage bus, and the tail ends between every two balance power distribution lines are connected through an interconnection switch and form a low-voltage loop. The low-voltage master control switch and the wire outlet switch on each low-voltage master control switch are connected with a load balance controller through an independent communication channel, and the N sectioned switches on each balance power distribution line are connected with the load balance controller through an independent communication channel. The line heavy load or overload problem caused by unbalanced line load is solved, and the whole line outage caused by faults or overhauling is avoided.
Owner:STATE GRID CORP OF CHINA +2
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