89 results about "Concentration parameter" patented technology

A method of controlling an ⁸²Sr/⁸²Rb elution system having a generator valve for proportioning a flow of saline solution between an ⁸²Sr/⁸²Rb generator and a bypass line coupled to an outlet of the generator such that saline solution traversing the bypass line will merge with eluted saline solution emerging from the generator to provide an active saline solution. During each elution run, a plurality of successive concentration parameter values are obtained at predetermined intervals. Each concentration parameter value is indicative of a respective instantaneous activity concentration of the active saline solution. Respective error values between each concentration parameter value and a target activity concentration value of the elution run are computed. Error data based on a plurality of the computed error values is accumulated. Between successive elution runs, at least one performance parameter of the elution system is adjusted based on the accumulated error data.

The invention belongs to the field of environmental geotechnical and environmental engineering, in particular relates to a leaching test device and method for indoor heavy metal pollutants and provides a leaching test device for testing release and migration of heavy metal elements. The test device can be used for monitoring physical conditions of various layered rock and soil mass and release and migration of the heavy metal to underground water, and sampling and detecting each layered rock and soil mass and leaching liquid in real time; the test device is capable of simulating the processes of leaching, migrating and converting of the heavy metal elements in each layer of the rock and soil mass. The invention also provides a leaching test method for testing release and migration of heavy metal elements. The method comprises the following steps: filling a leaching column, and arranging a pressure gage, a suction leakage meter, a flow meter and sampling time intervals to test and obtain solid samples different in flow in different time periods and different layers and the concentration of the heavy metal elements in a leaching liquid sample. The method is capable of effectively simulating the concentration parameters of the heavy metal elements in different leaching column layers under the action of leaching.

A system and method for measuring one or more light-absorption related blood analyte concentration parameters of a mammalian subject, is disclosed. In some embodiments, the system comprises: a) a photoplethysmography (PPG) device configured to effect a PPG measurement by illuminating skin of the subject with at least two distinct wavelengths of light and determining relative absorbance at each of the wavelengths; b) a dynamic light scattering measurement (DLS) device configured to effect a DLS measurement of the subject to rheologically measure a pulse parameter of the subject; and c) electronic circuitry configured to: i) temporally correlating the results of the PPG and DLS measurements; and ii) accordance with the temporal correlation between the PPG and DLS measurements, assessing value(s) of the one or more light-absorption related blood analyte concentration parameter(s).

A control method for one or several devices for nebulizing liquids into the air (DF1), the method including control steps for the device to nebulize a liquid into the air according to nebulizing cycles during which a liquid is nebulized into the air, the nebulizing cycles being spaced by idle periods, and comprising adjustment of the duration of idle periods as a function of the average quantity of liquid to be nebulized per unit time selected, and as a function of a concentration parameter for the active product in the liquid to be nebulized. The method enables a same apparatus to treat volumes with a factor of 100 times, typically from 7 to 700 m³.

The invention relates to the field of educational technology, in particular to a concentration evaluation method, a device and an electronic device. The method comprises the following steps of: obtaining image data of an application scene and an evaluation object; Obtaining a focus evaluation stage and at least two focus parameters according to the image data; Performing a focus evaluation on theevaluation object based on the focus evaluation stage and the at least two focus parameters. The embodiment can automatically monitor the degree of human focus, does not need to add additional equipment, improves the user comfort, and reduces the detection cost; In addition, the number of concentration parameters is increased in the calculation of concentration, which improves the accuracy of theobtained concentration. Finally, when calculating the degree of concentration, the evaluation stage and the degree of concentration parameters are considered at the same time. By considering the different performance of the evaluation object in different stages, the scientificity and representativeness of the obtained degree of concentration are enhanced.

The invention relates to a method for predicting and controlling steam temperatures of boilers on the basis of a state observation model. The method includes 1, replacing heat exchangers by multiple sections of concentration parameter links by a principle of natural segmentation or virtual segmentation, and using outlet parameters of media of various sections as representative parameters of the concentration links to build a mathematical model of enthalpy and temperature channels of the heat exchangers; 2, creating a state observer on the basis of output feedback and estimating outlet temperatures of the various sections; 3, connecting an MPC (multivariate model prediction controller) and a PID (proportion, integration and differentiation) regulator in a cascade manner to form a serial control circuit, acquiring step response coefficients according to the model of the enthalpy and temperature channels of the heat exchangers and acquiring set values of lead temperatures; 4, regulating the steam temperatures by the inner-loop PID regulator according to difference among the lead temperatures and output of the MPC and acquiring control signals of attemperation water valves. The method has the advantages that model building and verification are carried out, so that field test requirements can be reduced; states of inertial and lagged controlled objects are reconstructed via the state observer, so that characteristics of the objects can be modified; prediction and control are implemented, so that targets can be accurately and quickly controlled.

The invention discloses an oil type identification method. The oil spill fluorescence spectra of serial concentrations in a certain concentration range are taken as fingerprint identification indexes to identify oil types, and can be considered as a traditional fluorescence spectrum plus a dimensionality that is the concentration so as to obtain more fluorescence signals of an oil spill sample, thus improving capability of identifying the oil types. The identification method comprises the following steps: half-diluting the normal oil spill sample with a certain fixed original concentration to prepare extraction liquids of the serial concentrations, and measuring the fluorescence spectra of the extraction liquids; selecting a 3D fluorescence spectrum or a synchronous fluorescence spectrum according to requirements for detection precision and data processing speed, thus establishing a concentration parameter supplemental characteristic spectrum database of the normal oil spill samples of different oil sources sequentially. While identifying the oil type of a certain oil spill sample, the oil spill sample is extracted and diluted in the same way, and the corresponding characteristic spectrum is obtained and identified by being compared with the sample characteristic spectrum in the database, thus the optimal matched sample is the oil type of the oil spill sample.

The invention discloses a control method for a combustible refrigerant split-type air conditioner. When the split-type air conditioner is in a power-on state, a concentration detector for detecting the combustible refrigerant is always on, and performs continuous periodical sampling detection on the combustible refrigerant of the indoor unit and outdoor unit of the split-type air conditioner; thepercentage ratio of the instantaneous concentration average value detected in a detection period to the concentration value LFL of the combustion lower limit of the combustible refrigerant is definedas the sampling value N which is updated with the sampling period; and the sampling value N is compared with the concentration parameters (a concentration first-level alarm value N1 and a concentration second-level alarm value N2) preset in a mainboard of the split-type air conditioner, specifically comprising: power-on standby and power-on start of an air conditioner, operation process of the air conditioner, shutdown of the air conditioner and alarm mode. The control method disclosed by the invention is flexible to operate, low in manufacturing cost, high in safety degree and wide in application range.

A diagnostic method and apparatus for assessing the insulation condition of electrical equipment (3) insulated with oil (2). The method comprises the following steps: measuring the concentration of at least one gas dissolved in the insulating oil (2) of the electrical equipment (3); deriving at least one concentration parameter correlated with the gas concentration measured in a predetermined acquisition time interval; measuring electrical pulses relating to partial electrical discharges which occur in the electrical equipment (3) and which generate said pulses; deriving at least one discharge parameter correlated with the partial discharges measured substantially concurrently with the predetermined acquisition time interval; deriving a diagnostic indication about the insulation condition of the electrical equipment (3) as a function of the derived values of the concentration and discharge parameters.

The invention relates to a denitrification deep bed filter carbon source adding method. The method collects Q, COD, NO3<-> and NO2<-> concentration parameters of a denitrification filter, and comprises the following steps: 1, determining a carbon source adding amount coefficient, wherein Cm=Kmin-KmaxNox; 2, determining a carbon source adding type: when (Nin-Nc)/Nin is greater than 0.81, q=Kmax.(Nin-Nc).Q/1000/C, wherein q is a carbon source adding amount and has a unit of L/h, Nin is sum of concentrations of nitrate nitrogen and nitrite nitrogen of incoming water and has a unit of mg/L, Nc isan internal control emission index of the sum of the concentrations of the nitrate nitrogen and the nitrite nitrogen and has a unit of mg/L, Q is the flow rate of the incoming water and has a unit ofm<3>/h, and C is a carbon source adding concentration; when (Nin-Nc)/Nin is less than or equal to 0.81, q=Kmin.Nin.Q/1000/C. The invention also discloses a denitrification deep bed filter carbon source adding system. The carbon source adding method provided by the invention can be used for quickly obtaining more accurate carbon source adding control data, thereby obviously reducing the chemical cost and electric energy of a carbon source; the denitrification effect of the denitrification deep bed filter is improved, the operation cost is lowered, the waste of the carbon source is reduced, andthe production cost is further lowered.

A control system for an internal combustion engine in which fuel containing alcohol is used. In the control system, a maximum opening of a throttle valve of the engine is set, and a target opening of the throttle valve is set to a value which is equal to or less than the maximum opening. An opening of the throttle valve is controlled so as to coincide with the target opening. The maximum opening is according to a concentration parameter indicative of a concentration of alcohol in the fuel, a temperature parameter indicative of a temperature of the engine, and a number of ignitions performed after start of the engine.

A detecting and alarming device is provided, that has a mainframe and a detecting set detachably coupled to the mainframe. The detecting set has a parameter calibrating and setting unit for setting a predetermined concentration parameter, in order for the detecting set to send a signal to an alarm module of the mainframe, when a concentration of an ambient object detected by a detecting element of the detecting set is equal to or exceeds the predetermined concentration parameter. It allows the alarm module to generate an alarming signal upon receipt of the signal transmitted from the detecting set and the detecting, set to be easily separated from/coupled to the mainframe for replacement purpose.

The invention provides a piece of VOC adsorption equipment for on-line measurement of VOC concentration and a method thereof. In one embodiment, real time measurement of VOC concentration parameters can be carried out, optimized power shifts of a heating device, a regeneration blower fan, a treatment blower fan and the like are selected, VOC removing effects are guaranteed, and energy is greatly saved. In another embodiment, the heating device comprises at least two heating phases, one heating phase provides a lower temperature, so that VOC components of lower boiling points are released by an adsorbent; and the other heating phase provides a higher temperature, so that the VOC components of higher boiling points can be released by the adsorbent. Different phases which are alternatively carried out guarantee removal effects of VOC and greatly save energy.

A deterioration determination device for a catalyst, which is capable of accurately determining deterioration of a catalyst without being influenced by the response delays of outputs from the upstream and downstream oxygen concentration parameter sensors. The deterioration determination device includes upstream and downstream LAF sensors for detecting respective upstream and downstream oxygen concentration parameters. After switching exhaust gases flowing through the former parameter sensor into the catalyst to a reduction atmosphere, an upstream oxygen concentration parameter detected for comparison when a predetermined time period elapses after it exceeds a predetermined value is compared with a downstream oxygen concentration parameter detected for comparison when the predetermined time period elapses after it exceeds the predetermined value. Based results of the comparison, deterioration of the catalyst is determined.

The invention discloses a coaxial electrospinning process of a fibroin-polycaprolactone bi-component ultrafine fiber. By optimizing the inner layer polycaprolactone solution concentration and the solvent component proportion, an inner layer polycaprolactone spinning solution and an outer layer fibroin spinning solution almost volatilize synchronously in a synchronous stretching process, and the incidence rate of coating rate decline caused by outer layer breakage due to earlier stretch stop than the inner layer can be reduced. The process provided by the invention employs the laboratory optimized concentration parameters corresponding to the inner layer solution and the outer layer solution, makes preliminary adjustment for almost synchronous volatilization of the inner layer and the outer layer, then adjusts the dosage of the dichloromethane solvent in the mixed solvent of the inner layer solution to regulate the solvent volatilization speed of the inner layer solution, and makes second fine adjustment for almost synchronous volatilization of the inner layer and the outer layer. The process provided by the invention has the advantages of simple operation method and easy realization, greatly improves the coating rate of the fibroin-polycaprolactone bi-component ultrafine fiber, and increases the stability of the fiber during application in bionic engineering.

The invention relates to the technical field of environmental protection, in particular to an environmental artificial intelligence monitoring system and an environmental artificial intelligence monitoring method. The system comprises a particle concentration parameter collection module for collecting particle concentration parameters, a meteorological five-parameter collection module for collecting meteorological five parameters, a noise parameter collection module for collecting noise parameters, an image parameter collection module for collecting image parameters, a particle pollution judgment module used for editing a particle pollution judgment result and sending the particle pollution judgment result to an alarm information editing module, a meteorological pollution judgment module used for editing a meteorological pollution judgment result and sending the meteorological pollution judgment result to the alarm information editing module, a noise pollution judgment module used forediting a noise pollution judgment result and sending the noise pollution judgment result to the alarm information editing module, the alarm information editing module used for editing corresponding alarm information and sending the alarm information to a terminal and an image display module used for displaying the received image parameters. The environmental artificial intelligence monitoring system and the environmental artificial intelligence monitoring method have the advantages of the simple structure and easy realization.

The invention discloses a method for detecting the drunken degree of a liquor, and an application thereof. The method comprises the following steps: gavaging mice with an ethanol standard solution and a liquor to be detected, determining the behavior parameters of the mice before and after gavaging and the blood ethanol concentration of the mice after the gavaging, and sequentially calculating the behavior drunken index of the mice, the average behavior drunken rate of the liquor, the average blood drunken rate of the liquor and the integral drunken rate of the liquor; mapping with the integral drunken rate as an ordinate and the gavaging dosage as abscissa, carrying out linear regression analysis to obtain a regression line, and respectively finding the gradient Kethanol solutuion and the gradient Kliquor; and calculating to obtain the integral drunken degree Q=Kliquor/Kethanol solution. The method is four behavior parameters and blood ethanol concentration parameter combined integral drunken degree detection method, and can be used to scientifically and accurately evaluate the drunken degrees of different types of liquor, so when the method is used to evaluate the quality of the liquor, optimization of the liquor preparation technology is facilitated, low drunken degree liquor can be brewed, and the health quality of the liquor is improved.

The invention provides a nicotine quantitative control transmission mode based on an intelligent electronic cigarette. The transmission mode comprises the following steps: S1, preparing the intelligent electronic cigarette that a tobacco bar storage volume therein is a(ml), and establishing wireless communicating connection between the intelligent electronic cigarette and an external mobile terminal; and S2, in accordance with a duration b (hour) that the a(ml) of tobacco bar can get atomized and generate smoke, and implementing calculating in accordance with a formula a/(b*60*60), so that a tobacco tar amount, namely a/(b*60*60), which is consumed within each second of duration; and furthermore, in accordance with a concentration parameter of nicotine in the tobacco tar, calculating out anicotine amount ac/(b*60*60) (m) which is consumed within each second. In an actual using, a nicotine amount, which is actually consumed in an electronic cigarette using process, can be accurately displayed relatively well in a quantitative mode, so that a user can have intuitive understanding on specific information, and using frequency and the like can be adjusted in accordance with actual data; and the transmission mode is high in experiencing degree, good in using effect, simple to control and quite suitable for wide-range promotion and application.

The invention discloses a quality and quantity differentiating flow guide tank used for high-pollution rainwater and drought flow sewage. The flow guide tank is of a sealed rectangular structure; a water inlet hole and a water outlet hole are formed in the two vertical end faces of the flow guide tank respectively; a U-shaped groove is formed under the connection part of the water inlet hole and the flow guide tank; a pollutant detection probe is arranged in the U-shaped groove; a liquid level meter is arranged on the vertical central position of the flow guide tank and on the same side wall of the pollutant detection probe; a flow guide hole is formed in the water outlet hole side of the flow guide tank and in the bottom of the same side wall of the liquid level meter; the flow guide hole is sequentially connected with a self-suction pump and a reversing valve. According to the flow guide tank, a concentration control mode and a liquid level control mode are adopted, so that the efficiency of guiding the high-pollution rainwater and the drought flow sewage is maximized; a control concentration parameter is set, so that quantitative flow guide control can be indirectly realized; meanwhile, a city river way water body landscape is beautified.

The invention provides a tritium concentration data continuous collection and encrypting transmission method. The method is used for achieving the purpose of carrying out continuous collection and encrypting transmission treatment the tritium concentration data output by a static electrometer after data communication between tritium concentration data transmission equipment and the static electrometer used for detecting the tritium concentration parameters of gas output by the tritium processing equipment. By means of encryption, date transmission safety is improved. Even if a transmission network is interrupted to interrupt transmission of second ciphertext of the tritium concentration detection data, breakpoint resume is achieved to guarantee the continuity of transmitted-outwards tritium concentration data when the transmission network is connected again. Furthermore, the risk that the data are intercepted and revealed when a current receiver is attacked by network attack of data interception and the like is reduced. Thus, the safety of tritium concentration data transmission is improved, and meanwhile the continuity of a tritium concentration data collection and transmission process is guaranteed.

The invention discloses a real-time monitoring method for in-car pollutant concentration for a car with a projecting apparatus. The method comprises the following steps: presetting in-car pollutant concentration parameter thresholds including the maximum value and the minimum value; acquiring in-car pollutant concentration parameters in real time; judging whether the pollutant concentration parameters acquired in the step 2 exceed the maximum value, sending an alarm if the pollutant concentration parameters acquired in the step 2 exceed the maximum value and starting a purifying device at the same time; judging whether the pollutant concentration parameters exceed the minimum value, opening a car sunroof without starting the purifying device if the pollutant concentration parameters exceed the minimum value and are less than the maximum value, and projecting the pollutant concentration parameters acquired in the step 2 on a front windshield by means of projection for drivers to check if the pollutant concentration parameters are less than the minimum value; therefore, in-car ambient temperature measurement and harmful gas concentration real-time monitoring for the car can be realized well by adopting the projection technology, and the in-car environment for the car is effectively improved in real time.

The invention relates to a method for simulating dynamic characteristics of a controlled object and a measuring and transducing process, which is used for obtaining a concentration parameter mathematical model by using a centralized processing method of distributed parameters for a production controlled technical process or a teaching experiment. The invention comprises the following methods of: a simulating method for establishing dynamic characteristics of a fluid technical process in a large chemical industry and a dynamic fluid transparent water tank which refers to a black box; a method for simulating purely retarding characteristics of a technical process; a method for simulating nonlinear characteristics of the technical process; a method for simulating unstable characteristics of an open loop of the technical process; a method for simulating multivariable coupling dynamic characteristics of the technical process; a method for simulating dynamic characteristics of a random process; and a method for simulating signal transmission process delay of a parameter measuring and transducing unit of the technical process. The technology of the invention can be used for physically simulating the technical process and the dynamic characteristics of production equirement, devices, machines, and the like of the liquid technology of the large chemical industry and can form an experiment which has various flexible and convenient object characteristics and can realize various object characteristics and control schemes with a single variable and multi-variables.