70 results about "Correlation equation" patented technology

Coefficients A and B are calculated from the measured temperature and the measured state of charge. Next, a response voltage Vc is calculated by substituting the measured internal impedance X into a response-voltage correlation equation. Besides, by comparing the response voltage Vc with a predetermined threshold V0, if Vc is bigger than or equal to V0, the battery is determined as normal. By substituting the measured values of internal impedance, temperature, and SOC into the internal impedance calculation formula, a final internal impedance calculation formula is determined by calculating the value of C by an iterating operation. Next, in the case of determining SOH of a battery, by substituting a standard temperature and a standard SOC into the final internal impedance calculation formula, the internal impedance to determine the SOH is calculated. By comparing the internal impedance with SOH determination threshold, the SOH of the battery is determined.

The present invention describes a unique method and apparatus for applying near-infrared spectroscopy to estimate weight percent of methane in crude oil from which one can then infer gas-oil ratio (GOR) of crude oils downhole in real time while collecting a fluid sample. The correlation equations provided by this invention use two wavelengths, one centered at 1670 and the other centered at 1682 nm. Both wavelengths are primarily sensitive to the methane peak absorption. To significantly improve the fit, non-spectroscopic parameters, such as temperature or pressure, can be included in the correlation equation. Also, this invention can be used to monitor sample cleanup by monitoring the increase in GOR associated with cleanup as a fluid being pumped from the formation transitions from mostly gas-free filtrate to mostly gas-containing crude oil.

The invention discloses a thermal hydraulic characteristic testing device and method for tritium blowing helium of a breeding blanket pebble bed of a fusion reactor. The thermal hydraulic characteristic testing device for the tritium blowing helium of the breeding blanket pebble bed of the fusion reactor is mainly used for researching the flow and heat transfer characteristics of the tritium blowing helium of the solid breeding blanket layer of the fusion reactor between breeding agent pebbles of the pebble bed. The thermal hydraulic characteristic testing method includes that using a non-contact type high-frequency induction power to heat quasi metal breeding agent pebbles to simulate high-power density nuclear heat generated by the breeding agent pebbles in the pebble bed, researching the thermal hydraulic characteristics of the pebble bed under changed tritium blowing helium temperature, speed and pressure, breeding agent pebble arrangement mode, size and power density and the like, measuring the temperature distribution of the breeding agent pebbles and pebble bed wall surface, and obtaining a convection heat transfer correlation equation and a flow resistance relation to provide supports for testing and demonstrating the nuclear heat transmission of the neutron deposition in the pebble bed on the breeding agent pebbles and the tritium blowing helium flow and heat transfer characteristics under laboratory conditions, verifying the feasibility of a solid breeding blanket designing scheme and the correctness of a numerical method and data, and researching and developing Chinese solid experiment blanket modules of ITER.

The invention provides a metabolism assessment system, which comprises a respiration monitoring module, a blood pressure and blood temperature monitoring module, a PH value measuring module, a living condition monitoring module, an impact factor monitoring module, an information processing module and a display module. The information processing module is in charge of continuously receiving, storing and transmitting information acquired by the respiration monitoring module and the impact factor monitoring module, calculating chest circumference and abdomen circumference differences of a sample between exhalation and inhalation under different impact factors, calculating a respiratory capacity within unit time in accordance with the chest circumference and abdomen circumference differences as well as a respiratory rate, and comparing the respiratory capacity with a preset threshold; and the information processing module, in combination with blood pressure, body temperature and PH value information, is used for analyzing work of respiratory dynamic performance and heart dynamic performance on blood circulation and lymphatic circulation, and for analyzing and assessing electromagnetic metabolism, chemical metabolism, mechanical metabolism and the like with the application of a correlation equation between the various impact factors. According to the comprehensive metabolism assessment system provided by the invention, human metabolism can be assessed by calculating the correlation equation on the basis of a big data technology.

The invention discloses a spatial simulation method for plant species richness distribution. The method is implemented by mainly comprising the three steps of firstly, on the basis of collecting and preprocessing natural reserve plant species data, land utilization/coverage data, annual average biological temperature and precipitation data, DEM data and soil data of a research area, realizing spatial processing and statistical analysis of parameter factors; secondly, establishing optimal equations of correlation between plant species richness and three major habitat factors including a land utilization/coverage area, an environmental factor and a land utilization/coverage type structure index; and finally, realizing comprehensive integration of the optimal correlation equations of the three major factors, constructing the spatial simulation method for the plant species richness, and realizing spatial simulation analysis of the plant species richness. The method not only can realize spatial distribution simulation of the plant species richness in a meso-macro-scale but also has very high simulation precision and very high operability.

A method for determining particle size distribution of nanoparticle by utilizing capillary tube electrophoresis includes preparing nanoparticle sample to be suspension , obtaining capillary tube electrophoretic spectrogram of suspension through separation and detection , substituting regulation moving time of particle with different particle size in spectrogram in correlation equation of particle ¿C regulation moving time for obtaining particle size value , calibrating absorbance obtained from spectrogram with calibration equation of particle content scattering for obtaining content percentage of particle with different particle size .

The invention discloses a method for detecting amount of diesel oil mixed in machine oil. The method comprises the following steps: configuring multiple groups of mixed oil samples according to a ratio Xi of different diesel oil contents in the machine oil; measuring the kinematic viscosity Vi of each group of mixed oil samples by utilizing a kinematic viscosity measuring apparatus; performing correlation analysis on two groups of data of the configuration ratio of the mixed oil samples and corresponding kinematic viscosities according to a statistical function CORREL to obtain a correlation equation Vi=KXi+N serving as basic data for saving according to a SLOPE function and an INTERCEPT function; measuring an actual kinematic viscosity value V of the mixed oil to be detected under the same temperature condition by utilizing the kinematic viscosity measuring apparatus when the mixed oil to be detected is specifically detected to obtain the diesel oil content ratio X in the machine oil in the mixed oil to be detected matched with the actual kinematic viscosity value V according to the correlation equation Vi=KXi+N. According to the method, the content of the mixed diesel oil in the machine oil can be detected by utilizing conventional equipment, the analysis method is simple and practical, and the investment cost is low.

The invention discloses a hematocrit correction method. The method comprises the steps of applying a voltage to a sample, recording a testing temperature, an AD value of hematocrit and a testing current, converting the AD value into a sample resistance value, and carrying out calculation through a correlation equation of the sample resistance value and the hematocrit value to obtain an initial hematocrit value; determining a reference temperature and a reference hematocrit value, and obtaining a temperature difference value and a hematocrit difference value; and substituting the temperature difference value and the hematocrit difference value into a compensation factor equation to obtain a compensation factor; substituting a current value and the compensation factor into a current correction equation to obtain a correction current; and substituting the correction current into a blood sugar concentration equation to obtain a blood sugar concentration correction value. Through the hematocrit correction method, the correction steps of blood glucose testing are reduced, so that a blood glucose testing error is remarkably reduced.

A method for characterizing a desired property of a fluid downhole is described. In some non-limiting examples, the method comprises receiving an input signal representing sound speed of a fluid downhole, processing the input signal using a correlation equation expressing the desired property in terms of at least sound speed to produce an output signal representing the desired property, and outputting the output signal. In some examples, the correlation equation is derived through a chemometric analysis of a training data set, the training data set comprises a plurality of input values and a plurality of output values derived from said input values, between the desired fluid property and the first measured property, and the output values are calculated from the input values using a series of correlation equations. In at least one example, the desired property is gas oil ratio. In another example, the desired property is gas brine ratio. In a further example, the series of correlation equations comprises the Batzle and Wang relations. In another example, the receiving comprises receiving a plurality of input signals representing a plurality of measured properties of a fluid downhole and the processing comprises processing the plurality of input signals using the correlation equation expressing the desired property in terms of the plurality of measured properties.

A resin-filled ferrite carrier for an electrophotographic developer filled with a silicone resin in voids of a porous ferrite core material which continuously extend from a surface to a core interior, wherein the resin-filled ferrite carrier has an average particle size of 20 to 50 μm, and (Si/Fe)×100 as determined from X-ray fluorescence elemental analysis is 2.0 to 7.0, and the particle size and (Si/Fe)×100 are correlated, and wherein in the correlation relationship between [(Si/Fe)×100] and the particle size, a gradient (a) in a correlation equation thereof is −0.50≦a≦0.15.

There is provided a body composition indicator estimation system which hardly imposes a burden, such as purchase of another system or re-registration of the same input data, on a user in using the system. The body composition indicator estimation system measures basic body indicators which provide a correlation with a body composition indicator by basic body indicator measuring means 2, transmits the measured basic body indicators to a body indicator management unit 4 via a telecommunication network 100 by basic body indicator relay means 3, calculates a body composition indicator based on the transmitted basic body indicators in accordance with a correlation equation of the basic body indicators and body composition indicator which can be changed by correlation equation changing means 5 on the administrator side and transmits the calculated body composition indicator to a body indicator confirmation terminal unit 7 via the telecommunication network 100 by body composition indicator acquiring means 6, and outputs the transmitted body composition indicator to a user by body composition indicator confirmation terminal means 8.

The invention relates to a testing device for quantizing volume of gas produced in a battery and a testing method. The testing device comprises a first water tank and a second water tank which containdeionized water respectively, wherein a tested battery is placed in the first water tank; the second water tank is arranged on a precision weighing instrument; a liquid injection hole of the tested battery is connected with a gas cylinder through a gas pipe; a glass raised head which is inclined towards the position below the outer side is arranged on the side wall of the first water tank and connected with the second water tank through a hose; water level of the deionized water in the first water tank is higher than the top of the tested battery and located at the glass raised head; an internal pressure sensor communicated with the tested battery is arranged on the tested battery, and the internal pressure sensor and the precision weighing instrument are both connected with a data recorder. According to the technical scheme of the device, a correlation equation of actual gas output of the battery, internal pressure value of the battery and battery shell volume change can be obtainedby multiple experiments, and therefore, actual gas output in the battery can be obtained by non-destructive reverse inference according to change of the battery volume.

The invention discloses an LCC-HVDC commutation failure immunity evaluation method in consideration of a transmission power limit, and belongs to the technical field of line commutated converter HVDCtransmission. The method comprises the steps of: firstly establishing a power-voltage correlation equation at a conversion busbar based on a single feed-in LCC-HVDC quasi-steady state model; transforming the correlation equation to obtain the reactive power disturbance at the conversion busbar, namely a busbar voltage change rate; then obtaining the voltage sensitivity factor of the conversion busbar; further analyzing the power transmission limit of the DC transmission system by using the maximum transmittable power condition of the DC system to obtain a power limit short-circuit ratio (PLSCR); and introducing the PLSCR into the expression of a commutation failure immune index, and providing a rapid evaluation method of an inverter station commutation failure immunity based on a correction result. The present invention also provides an LCC-HVDC commutation failure immunity evaluation system in consideration of the transmission power limit. The method achieves accurate evaluation results and high calculation efficiency.

The invention belongs to the technical field of collision analysis and application. The invention provides a quick analysis method for analyzing collision according to a relative motion relation when objects approach to one another. The quick analysis method is characterized by building an intersection coordinate system and a vector correlation equation based on an assumption according to quasi linear motion by using a relative vector relation in space motion of two objects, and quickly analyzing minimum approach distance and approach moment between two objects; the contradiction between calculation efficiency and accuracy in numerical calculation is avoided; the complexity and calculation quantity of the conventional analysis method are reduced; the relation between the calculation efficiency and the accuracy are well considered. The quick analysis method has a wide application prospect in nature and human activities of analyzing collision of the celestial objects, early warning collision of satellites, screening dangerous objects, analyzing hit rate of shooting and striking targets and analyzing collision of high-rate particles.

The invention relates to a fresh tea leaf fluorine content non-destructive rapid determination method, and belongs to the technical field of agricultural productions. The method comprises the steps that: SPAD value determination is carried out, a fluorine content is determined; a correlation equation of SPAD and fluorine content is determined; an actually needed tea leaf fluorine content control standard is introduced into the linear equation, such that the SPAD value controlled within the fluorine content standard is obtained; during field picking, the leaves are subjected to SPAD value non-destructive rapid detection, and leaves within the SPAD value control range are picked; and during field picking, the leaves are subjected to SPAD value non-destructive rapid detection; and the result is introduced in the correlation equation of SPAD and fluorine content, such that leaf fluorine content is determined. The method provided by the invention has certain practical guidance function on low-fluorine fresh leaf raw material picking. With the method, fresh leaf raw material fluorine content in-situ rapid determination can be realized without bringing the raw material back to a laboratory, such that a defect of picking and then detecting is overcome. Source control and real-time detection are realized, and detection and picking are both carried out on site. Therefore, various defects of prior art are overcome.

The invention discloses a frequency spectrum simulation method for a magnetic head noise testing process, which includes the following steps: (11) a dynamic tester is adopted for detecting multiple magnetic heads within the scope of a first frequency bandwidth, so that multiple first noise observation diagrams are obtained; (22) each first noise observation diagram is divided into two noise curves based on a preset frequency bandwidth, namely a first noise curve and a second noise curve, wherein the scope of the frequency bandwidth of the first noise curve is smaller than that of the second noise curve; (33) each second noise curve is fitted into a mathematical equation; and (44) a correlation equation is established among the multiple mathematical equations, so that the second noise curve of each magnetic head can be simulated. According to the method, the second noise curves of the noise observation diagrams within higher frequency bandwidth can be simulated, and the correlation equation can be established according to the second noise curves, so that testing time is saved, testing efficiency is improved and testing accuracy is improved.

The invention provides a medium- and long-term air pollution forecast model combining with a large-scale weather system index, and the air pollution forecast model employs a historical large-scale weather system index and air quality index data for the statistical analysis of the correlation between the air quality index and other large-scale weather system indexes and obtains a correlation equation: y(i)=13.174*X1(i)+12.614*X2(i)+X3, wherein y is the air quality index, X1 is a polar vortex index, X2 is a Siberian index, X3 is a fixed value, and i is a date. According to the invention, the model employs the medium- and long-term weather situation forecast theory which is mature currently, employs a polar vortex which is easy to computerize and a Siberian high-pressure quantification characterization method, achieves the forecast easily, is clear in forecast result, and is easy for popularization for the public.

The invention discloses a characterization method for detecting the quality rating of fish meal, and relates to a detection method for quality of fish meal. The characterization method comprises the steps of determining TMA (trimethylamine) and TMAO (trimethylamine oxide) in fish meal simultaneously by adopting a picric acid colorimetric method so as to obtain a TMAO/TMA mole ratio which is used as a fish meal quality rating evaluating value through data processing; then carrying out correlation analysis on the measured value of volatile basic nitrogen of the fish meal and the fish meal quality rating evaluating value to obtain a correlation equation; and finally, substituting a standard value of volatile basic nitrogen for evaluating the quality of the fish meal in the correlation equation to obtain a standard value for evaluating the fish meal quality rating evaluating value. The characterization method is capable of improving the defects of subjectivity, complicity, low accuracy and the like in the current conventional detection method and remarkably improving the accuracy and the objectivity of the detection method of the fish meal, and has the advantages of reducing the cost, being sensitive in detection and good in measurement effect.

The invention discloses a method for analyzing hydrogen chloride in nitrogen by using a standard curve method, which is characterized by comprising the following steps of: fitting data of a plurality of gradient hydrogen chloride samples to obtain a standard curve by using a correlation equation and taking the concentration of the hydrogen chloride samples as a Y axis and the absorbance corresponding to the concentration of the hydrogen chloride samples as an X axis, when the concentration of the hydrogen chloride sample is within the concentration range of 10-60 ppm, 3-4 sample standard points are taken within the range, and when the concentration of the hydrogen chloride sample exceeds the concentration limit of 60 ppm, the standard points are sampled at the intervals of 40-50 ppm. According to the invention, the concentration of hydrogen chloride in nitrogen is measured by a linear regression method, which is more accurate and rapid.