The further two-two comparison showed that TC/HDL-C LDL-C/HDL-C and LDL-C /HDL-C + total bilirubin were obviously higher in the coronary heart disease group and myocardial infarction group than in the hypertension group and control group P < 0.05-0.01.

The statistics analysis: The comparison of multiple mean with analysis of variance, after the equal check of variance, and the two-two comparisons among the means were done by LSD method.

③Two-two comparison of the factors with significant difference in the multiple comparison:In the comparison between students of type 1 and type 2,there were significant differences in mother's emotional warmth and understanding and mother's excessive protection,also the dimension of neuroticism.

differences in TV among the various T stages was statistically significant (P=0.000,Kruskal-Wallis test). TV between adjacent T stages were compared by two-two test.

The analysis of variance and t test were applied to compare the difference of the measurement data the q test was used in the two-two comparison of the mean vale in the groups the Pearson correlation analysis was used in the analysis of correlation.

Based on the analysis of two-two conduction and three-three conduction modes, a 6 conduction mode has been presented to compensate the torque ripple caused by commutation, using leading conduction and delay conduction method.

In this paper, the condition that no additiona fluctuation will be produced while two two-port networks are being connected is expounded by means of scattering parameters to be only S 22a or S lib need be zero. Using match condition as connecting condition is thus considered to be not very appropriate. Formulae for calculating additional fluctuation in case neither S 22a nor S 11b is zero have been given. Especially, when |S 11b·S22a|<<1, bounds of max. fluctuation of additional working attenuation Δamax and...

In this paper, the condition that no additiona fluctuation will be produced while two two-port networks are being connected is expounded by means of scattering parameters to be only S 22a or S lib need be zero. Using match condition as connecting condition is thus considered to be not very appropriate. Formulae for calculating additional fluctuation in case neither S 22a nor S 11b is zero have been given. Especially, when |S 11b·S22a|<<1, bounds of max. fluctuation of additional working attenuation Δamax and additional working phase shift Δbmax are given by equation (9) and (10) respectively. Equation (11) may be used to find out the bounds of product of two reflecting coefficien |S11b·S22a | when the bounds of additional fluctuations are given. Finally, the principle of subducing acditional fluctuation by insertion of attenuators is explained by using the said connecting conditions and the extent of subducing is calculated.

In this paper three new inferences are presented for the analysis of two-part networks from Miller Theorem, not only suitable in analysis of two two-part parallel-parallel connection networks, also in analysis of two two-part networks of series-series, series-parallel and parallel-series connections.

In this paper, many enti ies(entities mean both empirical patterns and high-yielding plans including a series of technical measures in a different locality or year)of cotton and rape are studied and another optimization method for empirical pattern is approached from the concept of viewing the farmland system as a whole, that is to build "entity model"——a combination model.In the approach,large-scale system limited structure theory,systems analysis and Fuzzy mathematics method and electronic computer technique...

In this paper, many enti ies(entities mean both empirical patterns and high-yielding plans including a series of technical measures in a different locality or year)of cotton and rape are studied and another optimization method for empirical pattern is approached from the concept of viewing the farmland system as a whole, that is to build "entity model"——a combination model.In the approach,large-scale system limited structure theory,systems analysis and Fuzzy mathematics method and electronic computer technique are adopted and applied to crop-production systems successfully. First, the researcher classifies entities into some groups according to nutrients(N, P_2O_5,K_2O)change quantities in the soil after carrying out an entity; Second, entities of every classification are ranked by function coefficient forming optimized chains; Third, one crop chain is combined with another crop chain developing format-pattern under some subobjectives(such as yield, economical effect ecological effect, etc); Fourth, "entity model" is built through "minimum criterion of weighted hierarchical sum" and continuous optimization) Finally, the model is verified theoretically by means of "the analysis of two-two comparison value approach and sensitivity" .During the model building, not only nutrients imput and output in the soil are considered, but also important meteorological factors affecting crop growth and development. Therefore,the model has "rolling characteristics and controllability" .A different kind of optimized plans can be chosen from the model to cope with changeable weather condition of the coming years(esp, bad years )and these plans also can be alternated to keep the farmland nutrients equilibrium.