According to the test of correlation,the test of significance of linear regression and the test of significance of regression coefficients,the model proves to be feasible.

Results 260 HICH patients were divided into different groups by the scoring method. The relationship between mean of the scoring and fatality rate in each group was analysed by linear regression and correlation (r 1=0.975 7, r 2=0.997 3). The significance test of correlation coefficient showed significantly related (P<0.0005).

The comment on statistical test of correlation coefficients and others are given. The statistical test is used to apply to some analysis of climate variation of meteorological elements.

This paper proves the research of Correlation Engine technology basing on Security Operation Center has great theory significance and practice value in dealing with network security threats, through the design, realization and test of Correlation Engine.

A test of correlation measurements of the flow rate of sodium in the BN-600 assembly

During the short falling-water season, 2 of 8 species tested did exhibit density-dependent growth but a sign test of correlation coefficients from all species was not significant.

Comparison of the three methods by marker indices and the Mantel test of correlation indicated that though all methods were useful for the assessment of diversity in mulberry, the DAMD method was better.

A non-parametric test of correlation using rank orders within subgroups

The results were analyzed using a non-parametric test of correlation, the Spearman's rho.

The correlation and association between dominant species of the Dinghushan forest communities have been analysed by means of a 2×2 contingency table and calculation of X~2,and the t-test of correlation coefficients.These characters of community structure have also been showed evidently by the diagrams of species correlativity.Analysis of varance can be applied to compare the quantitative difference of the dominant species between two communities. The research showed that the correlativity between species...

The correlation and association between dominant species of the Dinghushan forest communities have been analysed by means of a 2×2 contingency table and calculation of X~2,and the t-test of correlation coefficients.These characters of community structure have also been showed evidently by the diagrams of species correlativity.Analysis of varance can be applied to compare the quantitative difference of the dominant species between two communities. The research showed that the correlativity between species depends on their age structures,life forms,densities,and succession stages of the communities they live in.Variant species showed the different correlativity characteristics in different community environments.The quadrat size effects the results of the meansurment. The methods used in this paper are suitable to the research of correlation and association between tree species in the evergreen broadlead forest of lweor sub-tropical.

A test study of drinking water defluoridation by bone char and its regeneration of 10 circles was made and the authors did the correlation analysis on various factors for drinking water defluoridation by bone char and its regeneration. The results indicated that the sequence of regenerative circles of bone char with the desorption rate of absorbed fluoride, the fluoride absorption capacities and the des-orption amount of absorbed fluoride presented positive and negative correlations (r = 0, 8961, r = -0. 9617...

A test study of drinking water defluoridation by bone char and its regeneration of 10 circles was made and the authors did the correlation analysis on various factors for drinking water defluoridation by bone char and its regeneration. The results indicated that the sequence of regenerative circles of bone char with the desorption rate of absorbed fluoride, the fluoride absorption capacities and the des-orption amount of absorbed fluoride presented positive and negative correlations (r = 0, 8961, r = -0. 9617 and r=-0. 8407) respectively; and that the fluoride absorption capacities of bone char with the desorption amount of absorbed fluoride and the desorption rate of absorbed fluoride manifested positive and negative correlations (r=0. 9799 and r = -0. 9617) . The significance test of correlation coefficients assumed (P<0. 01) the fluoride absorption and desorption of bone char was in a relative " balance state" and it kept the certain absorption ability in the process of drinking water defluoridation and its regeneration along with the progressive increase of regenerative times. The regularity presented practical and theoretical significances for bone char defluoridation of drinking water.

This peper deals with the analyses of correlations among 23 dominat species of Nanmu (Phoebe bournei) community at Luoboyan Reserve by means of 2 ×2 contingency table and calculation of association coefficients. percentage co-occurrence and x 2. Most associations emerge to be low. Furthermore, the authors have also analysed the association between Nanmu and other associated species by calculating the t-test of correlation coefficients. These species of peitive associations are different from those selected...

This peper deals with the analyses of correlations among 23 dominat species of Nanmu (Phoebe bournei) community at Luoboyan Reserve by means of 2 ×2 contingency table and calculation of association coefficients. percentage co-occurrence and x 2. Most associations emerge to be low. Furthermore, the authors have also analysed the association between Nanmu and other associated species by calculating the t-test of correlation coefficients. These species of peitive associations are different from those selected ones according to the association coefficient and x 2. Compared with the associations among four pairs of related species in different sample areas, the authors concluded that quadrat sizes are the most important factors effecting the result of association measurement.