The variation of Vitamin C content indicated a low→high→low pattern,with a peak as fruit kernel totally hardens,following a slow decrease in late stage of full maturity. Its fitted curve is cubic polynomial,with a regressive equation at 3 years average:Y= 0.0076X 3 -1.848X 2+138.43X-2490.8,r=0.9807 ** (n=7).

In this article, genetic algorithms are used in regression analysis of technical parameters of metallic centrifugal casting machine with water cooling, resulting in a fitted curve reflecting the internal properties of the experimental data.

4) The fitted curve of both diversity and richness of herb layer with DCCA axis 1 was more significant than that fitted with altitudinal gradient, while that of shrub layer showed the opposite trend.

Methods We chose 22 factories which belong to seven industries,determined the intensity of industrial noise and hearing of exposed workers. We calculated the average equivalent sound level and the detectable rate of workers hearing loss and made variance analysis,correlation analysis and fitted curve between them.

A dynamic fitted curve algorithm is proposed to improve the precision of demodulation system of Bragg grating sensor,when only relative software needs to be changed.

Based on Lagrange expressions,group of approximative Lagrange fitted curve is worked out by picking out three pairs of data,one pair of them can be set and modify according to experiment data for sake of precision.

in the end,through examples,fitted curve figures are achieved by using Matlab when asign the different values to the parameters,and then the parameters of the model are discussed.

According to the principle of least square method, the experimental data can be regressed and the regression equation can be received on the APPLE-Ⅱ microcomputer with this program. The fitted curve is drawn out based on this equation on the DXY-800 plotter.

A microcomputer processing method of test data in the experimental investigation on the high efficient rotors of wind turbines is discussed in this paper. Herein, the fast ordering method is used for data statistics, the error theory according to the law of the probabitistic method is used for processing error, and the the principle of the method of least squares is used for fitting curve so as to make the fitted curve show the aerodynamic performances of wind turbine rotors more accurately and reasonably.

In this method,based on the measured strain values,the joint load is calculated by the fitted curve equation and compared with the total load applied during test.

The parameters obtained from discoloration curve, Weibull's probability paper and fitted curve equation, respectively, showed that based on decrease in the transparency to 80% the storage period would be 2.63, 2.63, 2.59 years at 25℃, respectively(RSD 0.88%), and the activation energy was 44.31. 44.23, and 44.21 kJ/mol, respectively(RSD 0.12%) .

Characteristic boundary points areselected and fitted into cubic Nurbs curves. B-spline local modification property is utilized to adjust the control polygon forthe fitted curve to better approximate the bone structure boundary.

The cutter curve is fitted with the least square method and corrected to assure the corrected generation surface is identical with that of original fitted curve.

The variation of pore water pressure around foundation pit induced by excavation and dewatering is discussed; and fitted curve is created based on in-situ measured data.

The overall agreement of individual measurements with a least-squares fitted curve, as measured by one standard deviation σ, was σ=2.4% for GHPs and σ=2.7% for HFMs.

The distance between the measured points and the fitted curve, as can be evaluated numerically in a simple way, appears to yield good fits when applied as a criterion in the optimization procedure.

A choice of the best-fitted curve wasbased on a distribution of weighted residuals for the experimental data.

The size of the core set was decided as the inflection point on that fitted curve, i.e., the point beyond which the rate of increase in cumulative proportion of variability contributed by an accession began to decline.

The general shape of the fitted curve of the observed minus calculated (O-C) times of maximum light suggest the duplicity of the variable star, which causes long-term period variations in the light-time.

The relation between the air supply pressure and the characteristic parameters of the gas film is discussed. The fitted curves for air supply pressure to the stiffness of gas film obtained from tests are plotted, and empirical expressions for these curves worked out by regressive analysis are given.

A procedure using computer and plotter is developed to fit the experimental. data for anunloaded asynchronous motor which characteristics can be divided into linear and nonlinear sections. At first, the linear regression method is used for data points under the "knee point" to extrapolate the mechanical loss. Then the spline function method is introduced to fit the straight and curved sections as well as the discrete points. Finally, so called "profit-loss correction" is adopted to obtain an optimum fitted...

A procedure using computer and plotter is developed to fit the experimental. data for anunloaded asynchronous motor which characteristics can be divided into linear and nonlinear sections. At first, the linear regression method is used for data points under the "knee point" to extrapolate the mechanical loss. Then the spline function method is introduced to fit the straight and curved sections as well as the discrete points. Finally, so called "profit-loss correction" is adopted to obtain an optimum fitted curve representing a comp-romise between smoothness and precision. This technique puts the unload test data processing and auto-plotting into engineering practice.

This paper introduces a new program. According to the principle of least square method, the experimental data can be regressed and the regression equation can be received on the APPLE-Ⅱ microcomputer with this program. The fitted curve is drawn out based on this equation on the DXY-800 plotter. In addition with this program the graph can be amplified and reduced. The experimental resultc show that the hand calculation and drawing can be replaced by this method. It is proved that the program isof simplicity,high...

This paper introduces a new program. According to the principle of least square method, the experimental data can be regressed and the regression equation can be received on the APPLE-Ⅱ microcomputer with this program. The fitted curve is drawn out based on this equation on the DXY-800 plotter. In addition with this program the graph can be amplified and reduced. The experimental resultc show that the hand calculation and drawing can be replaced by this method. It is proved that the program isof simplicity,high drawing quality and high speed. The improved program can be used on other type of microcomputer.This method is proper and useful for thedata handling and drawing.