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64 results about "Technical evaluation" patented technology

Technical evaluation. Tests or studies conducted to investigate and determine the technical suitability of an equipment, material, product, process, or system for the intended objectives. You Also Might Like... When approaching investment in the stock market there are two very common methodologies used, fundamental analysis and technical analysis.

Device and method for testing accurate servo linear drive system performance

The invention relates to a device for testing performances of a precision linear servo drive system and a testing method thereof. The device comprises a cabinet leg and a bed which is supported by the cabinet leg, wherein, the bed is equipped with a main lead screw guide rail pair and an auxiliary lead screw guide rail pair; a main servomotor and an auxiliary servomotor are respectively connected with the lead screws of the main lead screw guide rail pair and the auxiliary lead screw guide rail pair by couplings; a workbench and an auxiliary workbench are respectively arranged on two sides of the bed; lead screw nuts in the main lead screw guide rail pair and the auxiliary lead screw guide rail pair are fastened below the workbench and the auxiliary workbench; the workbench can be provided with loads of various masses; an active cell of a first linear displacement grating scale is fastened with the workbench, and the active cell of a second linear displacement grating scale is fastened with the auxiliary workbench; the signal output terminal of the first linear displacement grating scale and the signal output terminal of the second linear displacement grating scale are connected with a controller of the testing device and form a fully closed precision servo drive system respectively together with a main drive unit and an auxiliary drive unit. The testing device can simulate various working conditions to perform the drive performance tests and parameter measurement of a precision servo rotating motor and a control unit thereof, and perform technical evaluation on each component of the system under various setting conditions.
Owner:GUANGDONG UNIV OF TECH

Icing observational method for electric transmission line under meteorological condition of natural icing

The invention relates to an icing observational method for an electric transmission line under the meteorological condition of natural icing, and in the microtopography and microclimate areas under long time freezing rain climatic condition, a simulate electric transmission line field icing observational method is used for guiding and conducting an icing test of the simulate electric transmission line under natural conditions. The method comprises the steps of collecting observational data in multiple aspects such as temperature, humidity, wind speed, wind direction, rainfall, snowfall, icing forms and height from the ground before and after operation, researching the relations between the temperature, humidity, wind speed, wind direction, rainfall, snowfall, icing forms, height from the ground and the like and the icing growing of wires and insulators of the simulate electric transmission line under the natural conditions, and providing technical evaluation according to the effects of icing growing of the simulate electric transmission line under the natural conditions by each meteorological element. The method is simple and easy to operate, and the method can provide guidance for the icing test of wires under field and natural conditions and provide technical support for forecasting, early warning and ice melting decision of icing on a power grid.
Owner:STATE GRID CORP OF CHINA +2

Rock alteration zoning comprehensive quantitative discrimination method

The invention discloses a rock alteration zoning comprehensive quantitative discrimination method and belongs to the field of geological engineering. The method is based on four in-situ test technologies such as a point load strength test technology, a rebound test technology, a sound wave test technology and a straight shearing test technology and comprises that through analysis according to results of tests on altered rock and unaltered raw rock, a rock point load strength index reduced rate, an average rebound value reduced rate, a sound wave velocity reduced rate, a cohesive force reduced rate and an inner frictional angle reduced rate are obtained, through a weight analysis method, a rock alteration degree quantitative evaluation index is built, a rock alteration zoning discrimination criterion is determined, and the rock is subjected to scientific alteration zoning so that space distributive scopes of a strong alteration zone, a medium alteration zone, a weak alteration zone and a non-alteration zone of rock are obtained. The method provides scientific basis for engineering exploration, design and treatment. The method creatively introduces the in-situ test technologies in rock alteration zoning discrimination and solves the problem that the prior art has a single technical evaluation method and a large artificial factor and cannot realize quantitative evaluation. The method provided by the invention utilizes an advanced test method and a novel discrimination process Compared with the traditional quantification experience method, the method provided by the invention has scientificity and reasonability.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Transformer oil heating device and method for large fire test

The invention relates to a transformer oil heating device and method for a large fire test. The transformer oil heating device comprises a transformer oil tank, an oil supply pipeline, a fire separation wall, a return oil pipeline, an electric valve, a manual valve, a heating tank, an electric control system, an hot oil pump, and an electric heating tube, wherein the transformer oil tank is filledwith transformer oil and has an open top or a combustion port on the top; the fire separation wall is arranged between the transformer oil tank and the heating tank to prevent the heating tank from burning and exploding when the transformer fuel tank is burned and to adjust the oil supply-oil return circulation balance. After the transformer oil is electrically heated to the predetermined temperature in steps and in stages, the heating system is stopped and the transformer oil tank has a predetermined oil level. The transformer oil heating device has high heating temperature, high speed, excellent safety and reliability, good repeatability, provides powerful technical support for a large oil-immersed transformer fire test, can be used for the study of fire characteristics of large oil-immersed transformers, as well as for the evaluation of large oil-immersed transformer fire-fighting technology.
Owner:应急管理部天津消防研究所 +2

Technical evaluation method for fermenting or chemical synthesis based pharmaceutical wastewater treatment

The invention provides a technical evaluation method for fermenting or chemical synthesis based pharmaceutical wastewater treatment. The method comprises the following steps: constructing a pharmaceutical wastewater treatment technical evaluation index system; determining the weight of each level of index; confirming the relative importance grade of each level of index through expert consultation; constructing a pairwise comparison and judgment matrix; solving the characteristic vector of the matrix by adopting a mathematical method; determining the weight of each index through a consistency test; determining an evaluation index membership function; before assignment, normalizing all indexes, converting to values in an interval between 0 and 1; applying a lower semi-trapezoid expression formula to the quantitative factor membership function to obtain a quantitative membership function of each index; and finally formulating the best available technology screening criterion for water pollution prevention and control in the pharmaceutical industry. The method can be used for evaluating conventional water pollution prevention and control technologies in the pharmaceutical industry, provides technical guarantee for wastewater standard emission in the pharmaceutical industry, and provides technical support for the national water environment technology management system.
Owner:TSINGHUA UNIV

Integral compatibility appraise evaluation method for heavy crude sewage disposal

The invention relates to an evaluation method for the overall compatibility of a high-viscosity oil wastewater treatment medicament; the method can be carried out according to the types of the chemical agents used by the technical process and the medicating order on the spot, the test conditions shall be the same for various chemical agents being evaluated during the overall technical evaluation on the compatibility of the indoor medicaments for the same oil gas distribution and treatment station or the same oiling region, the method comprises the specific steps of: adding a pre-dehydrator, a demulsifying agent, a coagulant or an additional silicon-removing agent. The method considers the characteristics of the medicaments used in the high-viscosity oil wastewater treatment flow, also considers the using effect of individual medicament, the overall compatibility of the medicaments used in the overall wastewater treatment flow and the influence on the crude oil dehydrating system caused by the recovered dirty oil. The method solves the problem that the evaluation result on the using effect of individual agent differs greatly with the actual application effect, and the overall comprehensive medicament evaluation conducted by utilizing the invention can obviously reduce the dosing agent of the system and the wastewater treatment cost.
Owner:LIAOHE GASOLINEEUM EXPLORATION BUREAU

Power distribution method and system for electrochemical energy storage power station

ActiveCN110323768AGuaranteed uptimeImprove dispatching operation efficiencyElectrical storage systemEnergy storageNameplate capacityPower station
The invention relates to a power distribution method and system for an electrochemical energy storage power station. The method comprises the following steps: when the power quantity required by powergrid dispatching is less than the sum of rated capacities of all electrochemical energy storage power stations, determining technical evaluation indexes of the electrochemical energy storage power stations according to the acquired power grid dispatching instruction information and the operation statistical information of the electrochemical energy storage power stations, and determining power distributed to each electrochemical energy storage power station by utilizing comprehensive evaluation coefficients of the electrochemical energy storage power stations participating in power grid dispatching; when the power grid dispatching demand power quantity is greater than or equal to the sum of the rated capacities of all the electrochemical energy storage power stations, determining the distributed power of the electrochemical energy storage power stations by utilizing the power grid dispatching demand power quantity. According to the technical scheme, the power distribution algorithm ofthe electrochemical energy storage power station is corrected by updating the evaluation coefficient in a rolling mode, the rationality of power distribution of the power grid dispatching electrochemical energy storage power station is improved; meanwhile, an operator is effectively guided to dispatch decisions of the electrochemical energy storage power station, and the stable operation of a power grid is promoted.
Owner:CHINA ELECTRIC POWER RES INST +1

Heavy ion beam irradiation breeding method of artemisia carvifolia

The invention relates to a heavy ion beam irradiation breeding method of artemisia carvifolia. The method comprises the following steps: (1), planting high quality seeds from Yongzhou of Human in fields of Yuzhou of Henan, and screening and reserving seeds according to yield, disease resistance, cold resistance and artemisinin content; (2), performing irradiation induced mutation on artemisia carvifolia seeds obtained in the first step through heavy ion beam, so as to obtain irradiated seeds; meanwhile taking nonirradiated artemisia carvifolia seeds obtained in the first step as a comparison;(3), plating the irradiated seeds to the fields, so as to form a first-generation group; meanwhile taking the nonirradiated artemisia carvifolia seeds as a comparison to select variant individual plants, and determining an optimal irradiation dosage; (4), selecting beneficial mutation types, and screening excellent variant strains; (5), performing identification test on the yield, quality and resistance of the excellent variant strains, observing and detecting hereditary stability an SRAP molecular marker, performing provincial region production testing and quality detection on stable strains,then performing variety technical evaluation, and declaring new varieties. The method effectively improves the breeding efficiency.
Owner:INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI

Polymer flooding and well pattern thickening combined development mode applicability evaluating method

The invention relates to a polymer flooding and well pattern thickening combined development mode applicability evaluating method. The polymer flooding and well pattern thickening combined developmentmode applicability evaluating method is characterized by comprising the following contents that S1, a polymer flooding and well pattern thickening combined economic evaluation model is established; S2, different polymer flooding and well pattern thickening combined modes are subjected to technical evaluation; S3, economic evaluation is carried out on the different polymer flooding and well pattern thickening combined modes through the economic evaluation model, and oil price application ranges of the different combined modes are obtained; and S4, based on influences of different injection-production corresponding rates and well pattern densities, grading evaluation is carried out on oil prices of the different polymer flooding and well pattern thickening combined modes. The applicabilityevaluating method of the oil prices of the different polymer flooding and well pattern thickening combined development modes is provided, a basis is provided for determining the reasonable developmentmode, and the oilfield development benefit is further improved.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Novel auto-coupling PI cooperative control theory method

InactiveCN110687777AGood Internal Disturbance RobustnessOmit function moduleControllers with particular characteristicsTechnical evaluationControl system
In order to solve problems of poor gain robustness and poor anti-disturbance robustness of the PI and various improved PIs, the invention relates to a novel auto-coupling PI (ACPI) cooperative controltheory method independent of a controlled object model. According to the method, all unknown internal and external complex factors of a system are defined as total disturbance and thus an unknown nonlinear complex system is mapped into an equivalent unknown linear system, so that a controlled error system under total disturbance reverse excitation is constructed; according to dynamic characteristics of an unknown controlled object, testing is performed to obtain a value range of the transition process time and a minimum speed factor model and a self-adaptive speed factor model are designed according to the value range. The global robust stability of the ACPI cooperative control system is theoretically analyzed. According to the invention, a scientific theoretical basis and technical guarantee are provided for technical evaluation and technical upgrading of various PI controllers in existing operation; and the method has a great application value in the field of control over a first-order unknown nonlinear system and a multiple-input-multiple-output nonlinear system.
Owner:曾喆昭

Lubricating oil pressure oiling hydraulic test stand

The invention discloses a lubricating oil pressure oiling hydraulic test stand and belongs to the technical field of structural design of airplane ground oiling equipment. The lubricating oil pressure oiling hydraulic test stand is used for performance testing of connectors of the airplane ground oiling equipment, lubricating oil in an oil tank is conveyed to a holding valve through one-way valves by a mechanical pump or a hand pump to control connection or disconnection, then the oil is communicated with an oil filter to achieve filtering of the lubricating oil and is divided into two oil paths at the position, one oil path forms an oil returning path through a holding valve, the other oil path is connected with a test connector through a pressure gage, and the leakage amount in the test is measured through a container. The lubricating oil pressure oiling hydraulic test stand is simple in structure, convenient to manufacture, high in stability, safe, reliable and capable of carrying out leakage test under the normal temperature, leakage test under the extreme environment condition, leakage test after loads are applied, intensity leakage test and circulating leakage test on the connectors of the airplane ground oiling equipment, thereby finishing comprehensive technical evaluation of a ground connection mouth and the connector on an airplane.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA

Recommendation method and device for operation and maintenance traffic scheme of offshore wind farm

ActiveCN111144604AGuarantee technological advancementGuaranteed economyForecastingResourcesTechnical evaluationControl engineering
The invention provides a recommendation method and device for an operation and maintenance traffic scheme of an offshore wind farm. The recommendation method comprises the steps of obtaining data of the offshore wind farm and data of multiple operation and maintenance vehicles; performing technical evaluation on the plurality of operation and maintenance vehicles by using a multi-target evaluationmethod according to the acquired data; determining a plurality of to-be-recommended operation and maintenance traffic schemes of the offshore wind farm by using an optimization algorithm according tothe data of the offshore wind farm and the determined plurality of to-be-recommended operation and maintenance traffic tool leasing modes; determining an operation and maintenance traffic scheme meeting a predetermined technical requirement in the plurality of to-be-recommended operation and maintenance traffic schemes; for the operation and maintenance traffic schemes meeting the preset technical requirements, based on the operation and maintenance cost data, using the multi-objective evaluation method for carrying out economic evaluation, and determining the operation and maintenance traffic scheme with the optimal economic efficiency as the operation and maintenance traffic scheme recommended to the offshore wind farm. The operation and maintenance traffic scheme recommended by the invention can ensure technicality and economy.
Owner:江苏金风软件技术有限公司

Method for technical evaluation on nutrient standards of lakes

InactiveCN102609630AWater protection functionPrevent lake eutrophicationSpecial data processing applicationsEutrophicationNet national product
A method for technical evaluation on nutrient standards of lakes includes the following steps: 1) computing the maximal permissible pollutant quantity of the nutrients in the lakes according to the nutrient standards and functions of the lakes; 2) analyzing conditions of various pollution sources in lake basins systematically and quantity of the pollution sources entering the lakes, and building an optimized model and computing reduced cost for achieving the nutrient standards of the lakes on the condition that the lakes are under the limit of water environmental capacity; 3) evaluating primarily: controlling the proportion of the cost accounting in the gross national product by means of lake eutrophication, measuring affection on development of the local national economy from cost control by eutrophication and judging whether the eutrophication control achieves the preset control effect or not; and 4) secondarily evaluating the control standards failed in the primary evaluation. The method computes environmental capacity of the lakes and standard nutrient reduction by means of TMDL (total maximum daily load), controls the proportion of the cost accounting in the gross national product by means of lake eutrophication and measures affection on development of the local national economy from standard cost.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Prediction method, device and equipment in technical hotspot field and storage medium

The embodiment of the invention discloses a prediction method, device and equipment for the technical hotspot field and a storage medium, and the method comprises the steps: obtaining a historical technical literature set which comprises at least two historical technical literatures; determining the technical field corresponding to each historical technical literature; for each technical field, calculating each technical evaluation index value in a technical evaluation index set according to the historical technical literature set, and determining the technical evaluation index set by a technical evaluation index set determination model generated based on machine learning training; and predicting the technical hotspot field according to the technical evaluation index values corresponding to the technical fields. According to the embodiment of the invention, comprehensive and accurate information can be obtained through machine learning, so that the accuracy of the technical evaluationindex set determined by the technical evaluation index set determination model generated based on machine learning training is relatively high. Based on this, the technical hotspot field is predictedaccording to the technical evaluation index set, so that the prediction accuracy of the technical hotspot field is improved.
Owner:华夏幸福产业投资有限公司

Innovative wind tunnel balance calibration data processing method

The invention discloses an innovative wind tunnel balance calibration data processing method, and belongs to the technical field of aviation weather dynamic wind tunnel tests. The defect that in the prior art, a judgment method for carrying out technical evaluation on errors of various coefficient values in a wind tunnel balance formula matrix and approximate linear correlation between calibration load combinations and discriminating elimination or reservation is lacked is overcome. The method comprises the steps of firstly determining a maximum allowable formula of each component of the wind tunnel balance; secondly, for each component of the wind tunnel balance, determining and fitting to generate a wind tunnel balance candidate formula containing different numbers of coefficient items by setting an assessment threshold value representing that a coefficient value has a relatively large error and calibration load combinations have approximate linear correlation; obtaining a recommendation formula of each component of the wind tunnel balance; and finally, combining the recommendation formula of each component of the wind tunnel balance to obtain a recommendation formula matrix capable of accurately describing the characteristics of the wind tunnel balance so as to ensure the accuracy of the force measurement wind tunnel test data.
Owner:AVIC SHENYANG AERODYNAMICS RES INST

Novel method for self-coupling PID cooperative control theory

The invention discloses a novel method for a self-coupling PID cooperative control theory. Aiming at the problems that PID and various improved PID are poor in gain robustness and disturbance-resistant robustness, the novel method for the self-coupling PID (ACPID) cooperative control theory independent of a controlled object model is invented. According to the method, all unknown internal and external complex factors of a system are defined as sum disturbance, so that an unknown nonlinear time-varying system is mapped into an equivalent unknown linear system, and a controlled error system under sum disturbance inverse excitation is constructed; and a value range of transition process time is obtained according to a dynamic characteristic test of an unknown controlled object, and a minimumspeed factor model and an adaptive speed factor model are designed according to the value range. The global robust stability of an ACPID cooperative controller system is theoretically analyzed. According to the method, scientific theoretical basis and technical guarantee are provided for technical evaluation and technical upgrading of various PID controllers in existing operation, and the method has wide application values in the fields of electric power, machinery, chemical engineering, light industry, traffic, aviation, spaceflight and the like.
Owner:曾喆昭
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