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287 results about "Effect analysis" patented technology

The cause and effect analysis basically involves two key steps which are looking backward and looking forward. In looking backward, the analysis focuses on identifying areas in which mistakes were made or money was lost.

Centralized heating whole-network heat balance control method

The invention relates to a centralized heating whole-network heat balance control method, in particular to a control system which is charged on area, which can eliminate the heat imbalance of the whole network and balance the heating effect. The control method adopts different control strategies for a heat source and two links of a primary side in the heating system so as to meet the requirement of users. For the heat source, the online prediction of the heat load is realized according to external temperature variation, and a running instruction is supplied for the heat source; a uniform control strategy is adopted for a primary network, automatic adjustment of a primary valve of a heat exchanging station of the heat network can be realized, a weighted value can be manually given to a special heat exchanging station, and the heat imbalance degree is used for analyzing and evaluating a whole-network heat balance control effect; and the control method can effectively solve the problems of the heating system such as imbalance heat and energy waste, a great amount of manpower and material resource can be saved in the adjustment process of the heat network, and the balance and consistency of the heat supply effect can be guaranteed.
Owner:ANSHAN HAIHUI AUTOMATION +1

Software FMEA (failure mode and effects analysis) method based on level dependency modeling

InactiveCN103473400AMeet system level FMEAMeet detailed level FMEASpecial data processing applicationsInfluence propagationReachability
The invention discloses a software FMEA (failure mode and effects analysis) method based on level dependency modeling. The method includes 1, understanding an object to be analyzed completely and deeply as required, and determining an analyzing target; 2, establishing a system-grade level dependency model by utilizing outline design as a reference; 3, selecting a module to be analyzed and determine a failure mode thereof, analyzing a failure influence propagation path and a failure reason tracing path to determine a failure reason and the failure influence and provide improvements according to system-grade level dependency model reachability node analysis; 4, selecting a detailed-grade FMEA analyzing object according to a system-grade FMEA result; 5 establishing a detailed-grade level dependency model on the basis of detailed design or a pseudo-code of the selected object to be analyzed; 6, selecting key variables to be analyzed according to the detailed-grade level dependency model; 7, determining a specific failure mode of the key variables to be analyzed, and analyzing producing reasons and failure influences of the variables and providing improvements according to detailed-grade level dependency model reachability node analysis.
Owner:BEIHANG UNIV

Teaching effect immediate feedback evaluation system

InactiveCN104157175AReal-time automatic correctionSimultaneous judgment masteryElectrical appliancesInteraction systemsCampus network
The invention relates to a teaching effect immediate feedback evaluation system. The teaching effect immediate feedback evaluation system comprises a campus network server, a class interaction feedback system, an analysis result inquiry system, a learning effect analysis system and a database. The class interaction feedback system collects answer information that students answer topics which a teach assigns in class in the database and transmits the answer information to the campus network server through a campus network. The learning effect analysis system compares the answer information with answers in the database, conducts statistic on answer results and analyzes the mastery degree of knowledge points. Parents, teachers or a principal can log into the campus network to inquire the answer results and the mastery degree of the knowledge points through the inquiry system. The evaluation system can automatically check homework and test paper of the students in real time, synchronously judge the mastery degree of the students on the learned knowledge points according to the conditions of the finished homework and test paper of the students, make conclusions, show the teaching effect of the teachers in a data form and provide reference for evaluating the teaching levels of the teachers and adjusting the teaching methods.
Owner:HUNAN TANGTANGQING EDUCATION TECH CO LTD

Method for analyzing and designing green building

The invention provides a method for analyzing and designing a green building. In the method, a series of preliminary design conditions are provided for the design of the green building by computer-assisted design and multi-physical model analysis, and the optimal design conditions of the green building are obtained by weight calculation and analysis; based on the exterior environment of the building, weather conditions and various local renewable energy source conditions, the sorts and rules of available renewable resources can be obtained by establishing a sunlight analysis model, a wind field mathematic model, a noise physical model, a thermal conductivity effect analysis model, an interior daylight physical analysis model, a resource analysis model and the like, and inputting the basic data of rainfall, solar radiation intensity, wind speed, wind direction, geological exploration and the like; the feasibility of the utilization of geothermal resources and the renewable resources is obtained according to the calculation results of the resource analysis model; and on the basis of the feasibility, the final design of the shape of the green building is performed so as to provide boundary condition guide for the design of the green building.
Owner:重庆星能建筑节能技术发展有限公司

Layered water injection effect analysis method

ActiveCN104879103AEffect Prediction of Layered Water InjectionSurveyFluid removalSection planeUltimate tensile strength
The invention provides a layered water injection effect analysis method. The layered water injection effect analysis method includes the steps that data of a production well, an injection well and an oil deposit are obtained, and dynamic parameters and static parameters of the wells and the oil deposit are determined; the shooting oil layer longitudinal mobilization degree and the water injection strength of the water injection well are generated according to water absorption profile testing data in the dynamic parameters; a Lorentz curve model for describing the relationship between the accumulated shooting sandstone thickness and the accumulated water absorption amount is built according to the water absorption profile testing data and the water injection strength; the oil layer water absorption balance degree is calculated according to the Lorentz curve model so as to achieve layered water injection effect analysis. By means of the layered water injection effect analysis method, the proportion of the longitudinal mobilization sandstone thickness of the water injection well to the total shooting sandstone thickness and the water absorption balance condition of the shooting small-layer whole can be evaluated in a quantified mode; factors having influences on layered water injection are found in cooperation with the over-the-year actual measurement water injection profile, the stratum physical property, the sedimentary phase, the layered water injection tubular column structure and injection allocation data.
Owner:PETROCHINA CO LTD

Building energy management and energy consumption data evaluation system and method thereof

The invention discloses a building energy management and energy consumption data evaluation system and a method thereof. The system includes energy consumption intelligent instruments, namely energy measuring units, is provided with a concentrator, a communication server, a database server and a back-stage analysis/display module. The method includes the steps as, firstly, communication with the energy consumption intelligent instruments; secondly, real-time acquisition for data collected by the intelligent instruments; thirdly, data classification and measure unit unification of data of the same kind; fourthly, statistics analysis for energy data of the same type and at the same region; fifthly energy effect analysis chart display, and overproof warning based on the prejudgement; and sixthly, anticipated effect evaluation. Through the adoption of system and the method, the energy consumption data is synchronous, timely, complete, real and clear, combined with the actual energy consumption, the anticipated energy consumption can be analyzed and contrasted, the advanced wireless technology and related equipment for communication are adopted, so that difficulty of wiring is greatly reduced, and problems brought by wiring are eliminated, synchronizing management and detailed analysis are realized, and the management report and effect analysis report can be generated directly.
Owner:CEIEC ELECTRIC TECH

Forest complex terrain correction and forest height inversion methods and systems with backscattering optimization

The invention provides forest complex terrain correction and forest height inversion methods and systems with backscattering optimization. The terrain correction comprises: constructing a two-layer-structure coherent model aiming to polarized interference SAR images of a forest scene and according to the characteristics of two-layer scattering of the forest scene, and correcting parameter changes caused by the terrain; establishing a quantitative description relation between vegetation and the terrain with the combination of terrain simulation and vegetation simulation; and finally performing correction with the combination of the range-Doppler geometric correction mode and normalized radiation correction mode. The forest height inversion comprises bringing forward tree species diversity factors aiming to structures of different tree species and distribution difference, the vegetation heights of different tree species are respectively estimated, and the forest height inversion result of the whole forest scene is obtained. By adopting the methods and the systems, terrain effect analysis and compensation of forest complex scenes can be effectively realized; besides, the inversion precision of vegetation height is improved with the combination of the tree species diversity factors.
Owner:WUHAN UNIV

Rock burst prevention method through deep hole blasting and depressurizing

The invention provides a rock burst prevention method through deep hole blasting and depressurizing. The rock burst prevention method comprises the steps that 1, rock burst monitoring signals are detected in an upper roadway and in a lower roadway of a working face of a coal bed with the risk of rock bursts and are compared with the normal value and the obvious characteristics of rock bursts occurring in adjacent regions, field detection is conducted on the hypocenter location and the drilling quantity of coal bodies, a highly-concentrated stressed zone is divided, and a dangerous zone is delineated; 2, a guide depressurizing roadway is dug along the upper roadway towards the center of the dangerous zone of the rock bursts, blasting and depressurizing holes are drilled in the guide depressurizing roadway in the direction of top plate surrounding rock and bottom plate surrounding rock, after explosives are installed, the blasting and depressurizing holes are sealed through yellow mud, and secure detonation is conducted in the guide depressurizing roadway outside the blasting and depressurizing holes; and 3, after blasting and depressurizing danger relieving is conducted in the dangerous zone of the rock bursts, the depressurizing effect is analyzed and detected, and when the depressurizing effect does not reach the detection standard, secondary danger relieving is conducted through the same method till the depressurizing effect reaches the standard. According to the rock burst prevention method through deep hole blasting and depressurizing, the depressurizing danger relieving effect can be improved, the risk of the rock bursts and the anti-burst cost are reduced, and coal mine safety production is ensured.
Owner:LIAONING TECHNICAL UNIVERSITY

Method for monitoring current-carrying capacity of power cable

The invention relates to a method for monitoring the current-carrying capacity of a power cable, which comprises the following steps that: 1, a sensor sends acquired data to a processor; 2, according to the data, the processor combines cable engineering basic data to establish a heat balance finite element model; 3, a comparison module of the processor compares data of the heat balance finite element model and data of a cable temperature field model, if the data difference is greater than a threshold value, the step 4 is executed, and if the data difference is less than the threshold value, the step 5 is executed; 4, after the heat balance finite element model is corrected by a model correction module of the processor, the step 3 is executed again; and 5, the comparison module outputs the data of the heat balance finite element model and sends the data to a mode identification module to carry out dynamic mode identification and simultaneously, the current-carrying capacity analysis, the trend analysis, the surge summation effect analysis, the early warning and warning identification and the optimization of a power transmission and distribution scheme are carried out. Compared with the prior art, the method has the advantages of high measurement accuracy, more measurement data and the like.
Owner:上海森首科技股份有限公司

Heavy oil thermal recovery microscopic displacement experiment system

InactiveCN105569637AAvoid reflux fluctuationsImprove insulation effectSurveyConstructionsModel systemEngineering
The invention provides a heavy oil thermal recovery microscopic displacement experiment system. The heavy oil thermal recovery microscopic displacement experiment system comprises an injection system, a model system, an output system, and an image acquisition and analysis system. The injection system is provided with a power source to provide displacement thermal fluid. The model system receives the displacement thermal fluid provided by the injection system, and uses an inert gas to apply and control circling pressure on the periphery of a micro model, so as to carry out a displacement experiment on heavy oil by the thermal fluid. The output system receives output liquid after the displacement experiment, and maintains certain return pressure. The image acquisition and analysis system performs dynamic observation and shooting on a microscopic displacement process, and researches microscopic percolation characteristics and displacement mechanism. Through improving heating heat-retaining property and sealing property of the experiment system and return pressure control design, the heavy oil thermal recovery microscopic displacement experiment system makes an experiment process and an experiment method more reliable. The system can carry out heavy oil thermal recovery microscopic displacement experiments, and researches displacement effect analysis and displacement mechanism.
Owner:CHINA PETROLEUM & CHEM CORP +1

Rock burst control method for coal mining tunnel

InactiveCN105350965APrevention and treatment are highly targetedReduce riskMining devicesUnderground miningControl areaDeep hole
The invention provides a rock burst control method for a coal mining tunnel. The control method comprises the following steps: firstly, arranging detection devices in an upper tunneling tunnel and a lower tunneling tunnel, and carrying out analysis and judgment to find the key control area of a rock burst; tunneling a first guiding pressure relieving lane towards the center of the key control area along the upper tunneling tunnel; tunneling a second guiding pressure relieving lane along the lower tunneling tunnel, drilling explosion pressure relieving holes in the first and second guiding pressure relieving lanes towards top plate surrounding rock and bottom plate surrounding rock, mounting explosive into the holes, sealing the holes with yellow mud, and exploding the key control area for pressure relief and danger relief; conducting analysis and examination on the pressure relieving effect, and repeating the steps till the analysis and examination result meets the standard. The control method has the advantages that as the two guiding pressure relieving lanes are arranged in the center of the key control area, and deep hole pressure relieving explosion is carried out in the guiding pressure relieving lanes, centralized stress is transferred to a deep part, energy of the surrounding rock can be relieved sufficiently in advance, hazard of the rock burst can be reduced, rock burst is avoided, and the safe production of a mine is guaranteed.
Owner:XIAN UNIV OF SCI & TECH
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