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533 results about "Scientific method" patented technology
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The scientific method is an empirical method of acquiring knowledge that has characterized the development of science since at least the 17th century. It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation. It involves formulating hypotheses, via induction, based on such observations; experimental and measurement-based testing of deductions drawn from the hypotheses; and refinement (or elimination) of the hypotheses based on the experimental findings. These are principles of the scientific method, as distinguished from a definitive series of steps applicable to all scientific enterprises.
Method and apparatus for creating and evaluating strategies
A method and apparatus for strategy science methodology involving computer implementation is provided. The invention includes a well-defined set of procedures for carrying out a full range of projects to develop strategies for clients. One embodiment of the invention produces custom consulting projects that are found at one end of the full range of projects. At the other end of the range are, for example, projects developing strategies from syndicated models. The strategies developed are for single decisions or for sequences of multiple decisions. Some parts of the preferred embodiment of the invention are categorized into the following areas: Team Development, Strategy Situation Analysis, Quantifying the Objective Function, Data Request and Reception, Data Transformation and Cleansing, Decision Key and Intermediate Variable Creation, Data Exploration, Decision Model Structuring, Decision Model Quantification, An Exemplary Score Tuner, Strategy Creation, An Exemplary Strategy Optimizer, An Exemplary Uncertainty Estimator, and Strategy Testing. Each of the sub-categories are described and discussed in detail under sections of the same headings. The invention uses judgment in addition to data for developing strategies for clients.
Owner:FAIR ISAAC & CO INC
Methods and apparatus for analysis of employee engagement and contribution in an organization
InactiveUS20160196511A1High level of expertiseDigital data information retrievalResourcesEffective actionKnowledge management
Methods and apparatus for modeling, using a data science approach, the propensity of employee turn-over and the level of engagement of employees. Both unstructured and structured data from internal and external sources are included in the analysis to determine the level of satisfaction and contribution by employees. What-if analysis permits assessment of the impact on satisfaction, contribution and / or budget for various what-if scenarios, permitting management to take the most effective action to drive retention and / or employee contribution goals.
Owner:SAAMA TECH LLC
Apparatus for tinnitus diagnosis and treatment
InactiveCN1663528AHigh precisionMeet the needs of tinnitus examinationEar treatmentAudiometeringDiseaseOutput device
Owner:MICRO DSP TECH
Scientific gymnasium, scientific fitness system and scientific fitness method
The invention relates to a scientific gymnasium, a scientific fitness system and a scientific fitness method. The scientific fitness system comprises the scientific gymnasium, a family fitness room and outdoor fitness auxiliary equipment. The scientific gymnasium comprises a registration unit, a body detection unit, a fitness scheme disposal unit, a fitness guide unit and fitness terminal equipment, wherein the registration unit and the body detection unit collect identity information and physique data of an exerciser, the fitness scheme disposal unit generates a fitness scheme according to the identity information and the physique data in combination with exercise data, the fitness guide unit invokes the fitness scheme and presets the state of a fitness terminal, and the fitness terminal equipment is used by the exerciser to exercise in the preset state, records the exercise data of the exerciser and transmits the exercise data to the fitness scheme disposal unit so that the fitness scheme can be updated. The scientific gymnasium, the scientific fitness system and the scientific fitness method enable the exerciser to obtain scientific fitness guide economically and are beneficial to popularization of scientific fitness and monitoring of national physique data.
Owner:SHENZHEN TAISHAN SPORTS TECH CO LTD
Safe efficient environment protection type feedstuff
InactiveCN101380056AImprove digestibilityReflect environmental protectionFood processingAnimal feeding stuffAnimal scienceSide effect
A safe and high-efficient environment-friendly feed comprises the following raw materials in terms of weight percentage: 6 to 20 percent of corn gluten feed, 3 to 25 percent of soybean meals, 1 to 20 percent of powder, 0 to 15 percent of rice bran, 0 to 40 percent of corn, 3.5 to 10 percent of rapeseed dregs, 1 to 5 percent of cotton seed meals, 1 to 5 percent of bone meals, 2 to 6 percent of fish meals, 1 to 6 percent of meat meals, 3 to 15 percent of wheat and right amount of additives. According to the required amounts of all nutritional components of the livestock in different growing stages, the invention combines energy feed, protein feed and various additives in equilibrium according to certain percentages by adopting a scientific method, thus leading various livestock to obtain the largest feed digesting rate and leading the livestock to absorb the feed to the largest degree; the excrement after the digestion of the livestock have no obvious smell and cause no pollution to the surrounded environmental sanitation and the environment protection after the feed being eaten is shown; moreover, no banned substances are added in the process of the feed processing and the feed is processed from natural products, which have no residue side effects on the livestock.
Owner:罗喜华
Complexity systems management method
InactiveUS20110173146A1Efficient managementEffective management of complex events and situationsDigital computer detailsResourcesComplex adaptive systemSystems management
The Complexity Systems Management (CSM) Method is a scientifically derived business process method for managing complex events and situations. The CSM Method™ is based on new scientific evidence that explains the behaviors of complex adaptive systems. This same scientific evidence gives rise to a new method of science, known as a priori optionality. A priori optionality is based on six scientifically derived tenets that are systematically applied using the CSM Method™ to more accurately characterize the behaviors of complex adaptive systems and manage complex events and situations. Applications of the CSM Method are integrally tied to specialized knowledgebases and a plurality of automated software applications.
Owner:PROJECTIONEERING
Wearable devices, systems, methods and architectures for sensory stimulation and manipulation, and physiological data acquisition
InactiveCN106061456AExpected sensory outcomeElectrotherapyPneumatic massageHuman bodyForce generation
A garment with prepositioned, definite sensory stimulating devices attached. These sensory stimulating devices include, but are not limited to, electrical stimulation, audio and physical stimulation such as localised force generation, compression, constriction, vibration, and surround sound. Predetermined and defined actuators allow the wearer to receive tissue, nerve and / or muscle stimulation and / or contraction so that the stimulation is precise as determined by its ability to conform to the scientific methodology of repeatability, reproducibility and reliability; this being due to consistency of actuator positioning in one or multiple locals on the human body. A personal surround sound can also be integrated to the garment to ensure the wearer is always in the optimal position relative the speakers. These actuators can be force generators within the garment for the wearer to feel impact or apparatus or electrodes included in the garment to locally constrict and increase pressure on the wearer.
Owner:IFTECH INVENTING FUTURE TECH
Method and system for automatically making steel-smelting continuous casting furnace sub batch plan
ActiveCN101303588AImprove scienceSolving inefficienciesTotal factory controlProgramme total factory controlSteelmakingOutcome assessment
The invention relates to an automatic planning method of a steelmaking and continuous casting heat batch plan and a system thereof, belonging to the IT field and including the following steps: 1, data collection; 2, construction of model; 3, optimization solution; 4, outcome assessment; 5, human-computer interaction; 6, sending down for executing. All indexes of the heat batch plan result obtained by adopting mathematical model and optimization algorithm of the invention are superior to that of the heat batch plan result obtained by the existing on-site manual planning pattern, in addition, the planning time (about 5 minutes) of the automatic planning method of the invention is far shorter than the planning time (about 2-3 hours) of the manual planning pattern. Therefore, the automatic planning method of the invention improves the scientificity of the traditional manual planning pattern, enhances planning level and quality, solves the problem of low efficiency in the manual planning pattern, and provides a scientific method for planning the on-line heat batch plan on a computer integrated manufacturing system in a steel enterprise.
Owner:NORTHEASTERN UNIV
Steam-electric generating set rotor thermal bending unbalance fault real time diagnostic method
InactiveCN101451898AMethod scienceConclusion scienceStatic/dynamic balance measurementVibration amplitudeAxial vibration
The invention discloses a real time diagnosing method for turbo unit rotor thermal bending malfunctions. The method processes the calculation, analysis and judgments for the vibrating data via collecting the rotor vibrating signals of the turbo unit; and the method processes the real-time calculation of storage on both sides of the rotor shaft relative vibration frequency of vibration amplitude and phase values, and real-time axis vibration frequency of vibration amplitude in real-time authentication, determine any side of the rotor shaft vibration amplitude of the vibration frequency is greater than the vibration amplitude threshold. Then the method is combined with least square method, based on the axial vibration frequency of vibration data axis vibration frequency of the vibration amplitude of the trend of flat-based authentication and shaft vibration frequency vibration phase of verification, such as the trend of moderate real-time quantitative calculation and analysis. Calculated in real-time quantitative analysis based on the combined results of the verification, automatic real-time diagnosis of whether units imbalance rotor thermal bending failure. The invention has the advantages of scientific method; reliable conclusions can automatically real-time online monitoring, fault diagnosis and so on.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Method for detecting perfuming homogeneity of cigarette production based on marker
ActiveCN101315353AAvoid uncertaintyHigh speedComponent separationMaterial analysis by electric/magnetic meansFilter mediaSolvent extraction
The invention relates to a detection method for the perfuming uniformity of cigarette shreds. The method sequentially comprises the following steps: A. confirming a label of characterization uniformity; B. sampling from an exit of a cigarette shred perfuming roller; C. balancing the cigarette shred sample obtained by sampling; D. pre-treating the cigarette shred sample by extraction with a rapid solvent extraction instrument, and preparing a filtering medium; E. carrying out gas chromatography and mass spectrum combined analysis on the filtering medium, taking the label as the analysis object, and adopting a selected ion scanning pattern; and F. calculating the content of the label in the cigarette shred sample, obtaining a standard deviation (SD), and reflecting the perfuming uniformity degree of the cigarette shred by the SD value. The detection method adopts the gas chromatography / mass spectrum instrument as the separation and analysis means, and quantifying-researches the uniformity of the perfuming procedure of the cigarette shreds, thereby confirming the uniformity of cigarette shred perfuming. The detection method is applied to the perfuming technological process in the cigarette production, thereby providing a practical and scientific method for the detection of the cigarette perfuming precision.
Owner:CHINA TOBACCO JIANGSU INDAL
Large steam turbine-generator set rotor crack fault real-time diagnosis method
InactiveCN101532911AMethod scienceReliable conclusionMachine part testingVibration amplitudeEngineering
The invention discloses a large steam turbine-generator set rotor crack fault real-time diagnosis method belonging to the filed of mechanical vibration state monitoring and fault diagnosis. Necessary computational analysis and judgment for vibration data are carried out by collecting the vibration signal of a rotor shaft of a steam turbine. The shaft vibration base frequency vibration amplitude and double frequency vibration amplitude at both sides of the rotor are computed in real time and the shaft vibration base frequency vibration amplitude is validated in real time so that the shaft vibration base frequency vibration amplitude at any side of the rotor is judged whether to be larger than vibration amplitude threshold value. Combined with least square method and product-moment correlation coefficient calculating method, real-time quantitative computational analysis, such as incremental validation of the shaft vibration base frequency vibration amplitude and incremental validation of double frequency vibration amplitude of shaft vibration, is carried out on the vibration data of shaft vibration base frequency. Based on the quantitative computational analysis and combined with each verification result, on-line diagnosis of the generator set whether to have rotor crack fault is automatically carried out in real time. The method has the advantages of scientific method and reliable conclusion, and on-line monitoring and fault diagnosis can be automatically realized in real time.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Gravity inductive type axis-counting device and method for detecting state of tract district using same
InactiveCN101712329AThe test result is accurateImprove insulation performanceVehicle route interaction devicesInformation processingEngineering
The invention discloses a gravity inductive type axis-counting device and a method for detecting the state of a tract district thereof, relating to a railway transport management device and a management method thereof. The gravity inductive type axis-counting device comprises an axis detector, an axis-counting information processing system, an input-output subsystem and a power supply, wherein the axis detector is composed of a wheel electronic detector and a gravity inductive type sensor unit; the wheel electronic detector consists of an axis-counting CPU unit, a signal processing unit, a sensor power unit and a state detecting unit; the axis-counting information processing unit comprises a CPU unit, a communication unit, and an I / O unit; and the input-output subsystem consists of a dynamic drive assembly unit, a relay and a button. In the method, a wheel signal is detected by a gravity inductive type sensor arranged on a rail, and is transmitted to the wheel electronic detector and the axis-counting information processing unit for processing, thus judging the state of the tract district. The invention has the advantages of accurate detection result, high reliability, scientific method and capability of realizing automatic judgment on the idle and occupied states of the tract district.
Owner:中国铁路南宁局集团有限公司 +1
Lens driving device
The invention relates to an lens driving device using a scientific method to prevent shaking vague images caused by shaking; the lens driving device comprises a housing, a lens barrel moving in an optical axis direction in the housing, a permanent magnet mount surrounding the lens barrel and moving along a direction vertical to the optical axis, and an OIS elastic assembly used for pulling the permanent magnet mount to a set position when the mount moves in the direction vertical to the optical axis; the OIS elastic assembly uses elastic reset force to restore the lens to the default position after lens shaking, thus realizing optical anti-shaking function, and the lens driving device is sensitive in reaction, and good in reliability. The lens driving device needs no hall sensor for inducting lens shaking, thus reducing making cost and size, and no suspension wire is needed, so assembling is easier, thus improving production efficiency.
Owner:AAC OPTICS (CHANGZHOU) CO LTD
Online monitoring method for fouling degree of flow passage of steam turbine
InactiveCN102004460ARealize automatic online monitoringMethod scienceProgramme controlComputer controlMiddle groupData acquisition
The invention relates to an online monitoring method for fouling degree of a flow passage of a steam turbine, which is characterized by comprising the links of data acquisition, main steam flow calculation, back-heating system parameter correction and diagnosis of the fouling degree of the flow passage, and comprising the following steps of: for each middle group, comparing the front and back pressure ratio of each group obtained by online monitoring with the front and back pressure ratio of each group when the flow passage is in a normal state by using the current back-heating extraction pressure measuring point of each level in the running of the steam turbine through the links so as to judge the fouling state of the flow passage of each middle group of the steam turbine; for the final group, comparing the pressure before the final group obtained by online monitoring with the pressure before the final group of the steam turbine under the condition of the same main steam flow so as to judge the fouling condition of the flow passage area of the final group of the steam turbine and realize the online diagnosis of the fouling degree of the whole flow passage of the steam turbine. The invention has the advantage of scientific method, and can realize automatic online monitoring and accurate judgment, and the like.
Owner:NORTHEAST DIANLI UNIVERSITY
Real-time diagnosis method of rotor original quality imbalance fault of turbo generator set
InactiveCN101738293AMethod scienceConclusion scienceStatic/dynamic balance measurementVibration amplitudeControl theory
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Method for measuring energy consumption of driving behaviors of motor vehicle driver
ActiveCN106203735AImprove the prominent problem of excessive energy consumptionEnergy-saving driving behavior operation modeForecastingDriver/operatorScientific method
The invention discloses a method for measuring the energy consumption of driving behaviors of a motor vehicle driver. The method comprises the following steps: acquiring the parameters of energy consumption features of driving behaviors, dividing running conditions of a vehicle, establishing a comprehensive measuring model structure of the energy consumption features of the driving behaviors, establishing a relation model between the driving behaviors and the energy consumption of the vehicle, determining the parameter threshold value of optimal driving behaviors under the constraints of energy consumption, adopting the form of score evaluation to conduct hierarchical computing on the energy consumption features of the driving behaviors of a driver under different running conditions. According to the invention, the method is conducted on the basis of the difference between the current driving behavior under different running conditions and the parameter threshold value of the optimal driving behavior by taking into full consideration of the differences of road conditions, traffic and working conditions during the running of the vehicle, can accurately describe the features of energy consumption of the driving behaviors during the driving of the driver, and further provides scientific methods and tools in the fields like driver evaluation and examination, driving behavior differentiation and feedback, driver training and optimization, etc.
Owner:BEIJING UNIV OF TECH
Continuous culture system and method for human intestinal canal flora
InactiveCN101368154AGuaranteed accuracyGuarantee stabilityBioreactor/fermenter combinationsBiological substance pretreatmentsMetaboliteControl system
The invention relates to a continuous culture system for human intestinal flora and a method thereof. The system includes a set of fermentor, a culture medium input system, a waste liquid output system, a liquid level control system and a gas-path system. The invention establishes a continuous culture system for human intestinal flora and a method thereof, and builds a vitro model simulating human intestinal environment. The continuous culture system is controlled by a computer and the model has the advantages of simple operation, convenient usage and good system stability. The results indicate that the human intestinal flora can grow stably in the system, and the amount of predominant bacteria and the concentration of major metabolites (SCFA) are the same as that of a healthy person. The establishment of the model not only builds a platform for safety evaluation of antibacterial residue effecting human intestinal flora, but also provides more scientific method and way for safety evaluation research of new drug, functional food and the like.
Owner:HUAZHONG AGRI UNIV
Health-care tea
The invention relates to a health-care beverage, in particular to health care tea, which is characterized by being prepared from the following raw materials in parts by weight: 20 parts of honeysuckle flower, 9 parts of lucid ganoderma, 2 parts of hairy deerhorn, 9 parts of ginseng, 9 parts of American ginseng, 1 part of cordyceps sinensis, 20 parts of donkey-hide glue, 15 parts of longan pulp, 9 parts of cortex eucommiae, 9 parts of barbary wolfberry, 9 parts of boschniakia rossica, 9 parts of dangshen, 9 parts of astragalus, 15 parts of lotus seed and 9 parts of sealwort. The invention has the advantages: a scientific method and the traditional Chinese medicinal theory are combined; the health-care tea has the effects of tonifying the kidney, strengthening bone, facilitating Qi and prolonging life, and further has the effects of prolonging life, strengthening body health and delaying senility after being drunk for a long time; and the preparation method is simple, has low cost, and is suitable for large-scale industrial production.
Owner:SHANDONG SHANGSHUI AGRI DEV
Cultural relics identification system and method
InactiveCN106124508ARealize integrated technological innovationAchieving identifiabilityMaterial analysis using wave/particle radiationRaman scatteringComputer scienceImage acquisition
The present invention discloses a cultural relics identification system and method; modern techniques are applied to forensics of physical evidences for cultural relics, photoelectric image acquisition, parameter extraction, judging and comparison and evaluation output units are organically integrated, integrated technical innovation on track collection, evidence obtaining, comparison, verification and identification is achieved, and multi-step comprehensive identification on time and authenticity is provided for cultural relics. Natural aging traces of cultural relics, primary traces and secondary traces, can be recognized and identified, and qualitative and quantitative analysis is made for elements of cultural relics. Identification results provided by the system and method for the forensics process of physical evidences for cultural relics may directly proof that the objectivity of disputes, lay basis for the capitalization of cultural relics, and provide accurate and scientific methods for the identification of cultural relics.
Owner:宁夏六维辩证文物鉴定研究院
Preparation of chinese herbal composite recipe used in horticulture
InactiveUS20050158403A1Maintain agriculture profitMaintain human healthBiocideDead animal preservationHerbal preparationsNose
A recipe of Chinese herbal composite used in horticulture to kill pests. The practical applications of this recipe include pest killing, germ and virus eradication of vegetables, fruit trees, flowers and economical plants. This recipe is composed of Gleditisia Sinensis, Sophora flavescens, Aloe uere, Stemona tuberose, Brucea jauamica and Dioscorea collettis vice versa. We prepare it with modern principles and scientific methods to emulsion spray. Those so called modern and scientific are the emulsion processes, micronization, permeability and the multiply potency it possessed. Several laboratory and field test proved that this invention had definite effect on the past killing, germ eradiation and virus inhibition. This invention is belongs to non toxic Chinese herbal preparation. The spray does not harm or cause toxic effect as it touch human skin, eyes, nasal mucosa, lip, mouth and tongue. It does not accumulate in human body and pollute environment.
Owner:LEE CHIEN YUNG
Land crop planting suitability evaluation method
InactiveCN107274297AEfficient managementGuaranteed accuracyData processing applicationsComplex mathematical operationsMultiple linear regression analysisTechnical standard
The invention belongs to the technical field of land crop planting and discloses a land crop planting suitability evaluation method. The method comprises steps: data in a database are displayed according to a user query condition and a statistical chart is then generated according to a chart type specified by a user, wherein selectable chart types comprise a broken line chart, a column chart and a pie chart; a vector layer and an image layer are built newly; roaming, zoom in, zoom out, full chart and management on layer display attribute data are realized; data are modified; a multiple linear regression analysis method and a stepwise regression analysis method are adopted; data gridding and gridding of an evaluation area are carried out; according to a specified cultivated variety, based on biological characteristics, the evaluation standard is determined, a scientific method is applied, the data are analyzed and estimated, and a professional suggestion is given; and a calculation result through processing and analysis is outputted. The method of the invention has a high-efficiency massive data management ability, and an important role is played in guiding adjustment and layout of an agricultural production structure.
Owner:贵州中北斗科技有限公司 +1
Equipment fault prediction method based on factor-event correlation recognition
The invention discloses an equipment fault prediction method based on factor-event correlation recognition. The method includes: acquiring normal running historical information and fault historical information of equipment, and storing running information and ambient information related to an equipment fault moment in a data sheet to form an equipment fault data set; forming a normal equipment running data set through the running information and ambient information when the equipment normally runs; statistically analyzing equipment fault parameters online, recognizing an equipment running abnormality indicator to quickly recognize a grid equipment fault hazard, and giving an early warning to provide scheduling and shipping inspectors with decision basis. The method has the advantages that fault criterions can be provided, fault factors and a fault indicator range can be selected, a clear warning indicator is provided, and a scientific method of warning is provided.
Owner:SHANDONG UNIV
Puffing fruit vegetable crisp slices processed by hot vapor and method thereof
InactiveCN101301055AReduce energy costsReduce processing costsFood shapingFood preparationAdditive ingredientDeep frying
The invention provides a vegetable chip processed by swelling using superheated steam and method thereof. The vegetable chip of the invention is swelled by superheated steam and the process method comprises vegetable selecting, cleaning, slicing, color protecting, washing and dehydrating. The product of vegetable chip is produced by drying to a low water ratio after swelling by superheated steam. The vegetable chip is swelled using superheated steam by the invention with advanced scientific method, little service time, little used equipment, low energy consumption and process cost, and better economic benefit. The prepared vegetable chip is provided with fine looking, good color, flavor and taste, crisp mouth-feel, high retention ratio of nutritional ingredients and low energy without external fats. Quality of the product is superior to the vegetable chip swelled by deep frying, and the product is apt to preserve, propitious to human health and suitable for obese people and three highs people.
Owner:FUJIAN AGRI & FORESTRY UNIV
Testing method of characteristics of sound vibration and point vibration of piano sound board and special equipment thereof
InactiveCN101793873AHigh sensitivityAccurate measurementAnalysing solids using sonic/ultrasonic/infrasonic wavesStringed musical instrumentsAccelerometerData acquisition
The invention discloses a testing method of characteristics of sound vibration and point vibration of a piano sound board and special equipment thereof. The testing method of sound vibration and point vibration comprises the steps of applying the modern technologies, such as magnetostriction, audio measurement, vibration measurement, computer frequency spectrum analysis and the like in the manufacturing process of the piano sound board, utilizing a sound sensor and a vibration sensor for respectively detecting an integral sound vibration signal of the sound board and a point vibration signal of a local area, then analyzing the comprehensive vibration characteristics of the sound board through a computer frequency spectrum system, and further realizing the oriented tuning of the sound board. The method has the advantages of high sensitivity, fast and accurate measurement and strong intuition, and can effectively control the sound of the sound board and provide the scientific method andmeans for objective identification, evaluation and tuning of the acoustic quality of the piano sound board.The special equipment for testing of the characteristics of the sound vibration and the point vibration of the piano sound board mainly comprises an audio sweep signal generator, a magnetostrictive audio transducer, a measurement microphone, an accelerometer, a data acquisition card, professional frequency spectrum analysis software, a computer and the like.
Owner:王宏伟
Well logging permeability interpretation method
InactiveCN104712330AModel results are objective and trueEasy to useBorehole/well accessoriesGranularityWell logging
The invention relates to a well logging permeability interpretation method. The well logging permeability interpretation method includes the first step of conducting granularity interpretation, porosity interpretation and water saturation interpretation, the second step of conducting permeability interpretation through a permeability interpretation model, and the third step of verifying the permeability interpretation model through granularity comparison, permeability model actual measurement inspection and permeability model actual measurement production characteristic inspection. The well logging permeability interpretation method integrates static experiments, well logging and dynamic testing data, the scientific method of mathematical statistics is used, an interpretation result is verified after objective analysis evaluation based on geological conditions, and the model result is objective, real and convenient to use.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Pipe damage probability prediction method based on BP neural network
ActiveCN106022518AEvaluation StabilityEvaluate prediction accuracyForecastingNeural learning methodsUrban water supplyThematic map
The invention discloses a pipe damage probability prediction method based on a BP neural network, and belongs to the technical field of urban water supply pipe networks. The method comprises the steps: carrying out the early data preparation for the prediction of the pipe damage probability; selecting a to-be-predicted pipe network region, and determining a training data range through the whole pipe network, an administrative area and a peripheral buffering region; selecting an influence factor causing the damage to a pipe, and extracting a training sample, needed by modeling, in the training data range; training a model through employing a BP neural network algorithm and the training sample, and evaluating the stability and prediction precision of the model through employing an ROC curve based on 10-fold cross validation; applying the trained model in the to-be-predicted pipe network region, and obtaining the probability that each pipe will be damaged; classifying the pipe damage probability in ArcGIS through employing a natural break point method, and making a thematic map. The method enlarges the research content of a conventional pipe damage probability prediction model, and provides a new idea for the building of a water supply pipe network asset management scientific method.
Owner:TSINGHUA UNIV
High/low-temperature slide/roll tribological property experimental table
ActiveCN104181098AUsing mechanical meansInvestigating abrasion/wear resistanceTemperature controlElectricity
The invention discloses a high / low-temperature slide / roll tribological property experimental table which comprises a vertical electric spindle, an inclined electric spindle, an upper cover plate, an air bearing, a force measuring structure, a temperature control device, a speed sensor and a pressure sensor, wherein the upper cover plate is horizontally arranged and is supported by the air bearing; the upper cover plate is connected with the inclined electric spindle; the shaft end of the inclined electric spindle is connected with a spherical or roller-shaped first test piece; the shaft end of the vertical electric spindle is connected with a disc-shaped second test piece; the first test piece is contacted with the surface of the second test piece; the force measuring structure measures the horizontal direction force of the inclined electric spindle transmitted to the upper cover plate; the speed sensor measures the rotating speed of the two electric spindles; the pressure sensor measures the pressure between the two test pieces; and the temperature control device controls environment temperature of the first test piece and the second test piece. The invention aims to provide a scientific method or technical means which can comprehensively and deeply research tribological properties such as friction, wear and lubrication of mechanical drive parts in slide-roll contact states under different temperatures.
Owner:SICHUAN UNIV
Construction method of wolfberry fruit polysaccharide multi-element fingerprint spectrum and wolfberry fruit polysaccharide standard fingerprint spectrum
ActiveCN104458985ASimple and fast operationEasy to operateComponent separationHplc fingerprintLighting spectrum
The invention provides a construction method of a wolfberry fruit polysaccharide multi-element fingerprint spectrum and a wolfberry fruit polysaccharide standard fingerprint spectrum, belonging to the technical field of traditional Chinese medicine and functional food raw materials and a fingerprint spectrum of the product. The construction method comprises the following steps: pretreating wolfberry fruits, extracting wolfberry fruit polysaccharide, determining a UV standard fingerprint spectrum, determining an HPSEC standard fingerprint spectrum, analyzing an IR light spectrum fingerprint and determining the standard fingerprint spectrum, completely hydrolyzing, deriving a hydrolyzed product, and analyzing a PCD-HPLC fingerprint and determining the standard fingerprint spectrum. The pretreatment, extraction of the wolfberry fruit polysaccharide and construction method of the multi-element fingerprint spectrum of 16 types of wolfberry fruits in different production areas are the same as above and can be operated simultaneously and respectively. The construction method of the wolfberry fruit polysaccharide multi-element fingerprint spectrum has the advantages of simplicity in operation, stability, flexibility, high precision, good repeatability and the like; and the quality condition and production area resources of the wolfberry fruit polysaccharides can be grasped from a whole characteristic appearance of a chromatogram and a novel scientific method is provided for wolfberry fruit quality control and true and false identification.
Owner:CHINA PHARM UNIV
Electronic balance system and cooking control method
ActiveCN103245406AReasonable cookingCook accuratelySpecial purpose weighing apparatusMeasurement deviceScientific method
The invention discloses an electronic balance system and a cooking control method. The electronic balance system comprises an electronic balance and a cooking measurement device, wherein the electronic balance is used for weighing foods to be cooked, water amount and accessories; and the cooking measurement device comprises a first main control plate as well as a first display screen, a first control panel and a first power supply module which are connected with the first main control plate, and the weighing data output end of the electronic balance is connected with the data input end of the first main control plate. The foods are accurately weighed via the electronic balance, water amount and / or the accessories required by cooking the foods in the weight can be calculated by combing a food type system, and the system includes database of water amount, time and temperature which are required by cooking various foods with different weight and different tastes. According to the invention, the cooking is more reasonable and accurate via a scientific method, so that defect of inaccurate water amount and / or accessories, cooking time and temperature, caused by traditional cooking experience, is overcome.
Owner:ZHONGSHAN YESHM COMMODITIES
Modeling method of trial flight maturity model
InactiveCN110032200AEliminate the effects ofAttitude controlPosition/course control in three dimensionsTask completionModel method
The invention discloses a modeling method of a trial flight maturity model. The trial flight maturity model is formed on the basis of a maturity model according to aircraft trial flight experience anddifferent stages of weapon equipment development; the trial flight maturity model is divided into six maturity levels including a non-trial flight level, a first flight level, an adjustment trial flight level, a setting trial flight level, a verification trial flight level and an acceptance trial flight level from low to high, and each level in the six maturity levels is used for evaluating the aircraft trial flight working condition through key state dimensions so as to form a step-type trial flight maturity improvement route. According to the method, the maturity model is introduced, relevant states and requirements of the aircraft trial flight are described in detail in stages and levels, a scientific method is provided for the level-transfer evaluation in the trial flight process, anda more powerful, more scientific and more systematic support is provided for improving the trial flight task completion efficiency and the trial flight safety control.
Owner:CHENGDU AIRCRAFT INDUSTRY GROUP
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