偏相关系数

In a certain period, the probability and expected value of critical drought duration got larger with the in crease of first-order auto-correlation coefficient and skewed coefficient, especially with first-order autocorrelation coefficient. The return periods of consecutive 11-year drought in North Luo River and Jing River were 1000 years.

在一定时期内，极限水文干旱历时的发生概率和数学期望随一阶自相关系数、偏态系数的增加而增大，且一阶自相关系数对极限水文干旱历时概率分布影响较为显著；泾河和洛河发生连续11年干旱的重现期均为1000年。

The spearman correlation coefficient was 0.290 (P＜0.01) between HOMA index and risk factors score, and the partial correlation coefficient was 0.1776 (P＜0.01) after adjustment for age, sex, body mass index and waist circumference.

在调整了年龄、性别、体重指数与腰围变量后的偏相关分析显示，HOMA指数与危险因素评分的偏相关系数为0.1776(P＜0.01)。

As the representative of the northern Loess Plateau gully region, the soil quality under different cultivation length of the orchard in Changwu county was studied. Using partial correlation coefficient to determine the weight, combined with evaluation of membership Sanction to evaluate soil quality levels of the area, the trend of orchard soil quality under different cultivation years was analyzed. The results showed that the IFI values of orchard soil were between 0.22 and 0.70, 27% of them reached the second soil quality standards, 64% reached a third-level soil quality standards, 9% met the fourth standards of soil quality.

以长武北部黄土高原沟壑区为代表，研究了不同果园种植年限下的土壤质量现状，运用偏相关系数法确定权重，结合隶属度函数评价了该地区土壤的综合肥力水平，分析果树种植中土壤质量随着种植年限的变化趋势，结果表明：黄土沟壑区果园土壤IFI值在0.22~0.70，其中有27%达到了2级土壤质量标准，64%达到了3级土壤质量标准，9%达到了4级土壤质量标准。

Huanghe River Estuary ; sediment ; geochemical form ; partial correlation coefficient

黄河口；沉积物；地球化学形式；偏相关系数

According to the partial correlation coefficient between the growth of forest and leaf nutrient,the N、 K content in leaf of clone S2 affected the growth of breast-height diameter mostly,and influenced the growth of tree height were Mn 、 P 、 N、 Cu content.The K、 N、 P content in leaf of clone S8 affected the growth of breast-height diameter mostly,and influenced the growth of tree height were Ca、 N content.

4从林木生长与叶片营养的偏相关系数大小来看，影响无性系S2人工林胸径生长的主要是叶片中N、K元素含量，而影响树高生长的主要是叶片中Mn、P、N、Cu元素含量；在无性系S8人工林中，影响胸径生长的主要是叶片中K、N、P元素含量，影响树高生长的主要是叶片中Ca、N元素含量。

Age-, and setting-adjusted partial correlation coefficient between INS and UA was 0.10572 (P=0.0007) in men and 0.13052 (P=0.000) in women, but after further adjustment for BMI, the significance disappeared.

INS与UA呈正相关，相关系数男女分别为0.10863(P＝0.000)和0.13505(P＝0.000)；调整年龄、城乡后偏相关系数均具显著性，男女分别为0.10572(P＝0.0007)和0.13052(P＝0.0000)，但不独立于BMI。

The statistical difference of proinsulin rather than HOMA index was found among the patients of various Gensini's score group (Gensini's score was examined as a categorical variable classified by tertile values) and significantly stenosed vessels group by means of the results of analysis of covariate variance after adjusting for age, sex and body mass index (p＜0.05), and the partial correlation coefficient between proinsulin level and Gensini's score, the number of significantly stenosed vessels after adjusting for age, sex and body mass index was 0.3156 (P＜0.01) and 0.2752 (P＜0.05) respectively. Multivariate linear regression analysis indicated that the level of proinsulin was positively correlated with the Gensini's score (P＜0.01). The results of multivariate stepwise Logistic indicated that the proinsulin was the independent risk factor for the coronary heart disease, and the odds ratio (95％ confidence interval) was 2.268 (1.253～4.105)(P=0.007), however, the HOMA was refused by the final model.

年龄、性别与体重指数为控制变量的协方差分析结果显示，胰岛素原的水平在不同的Gensini评分组、冠状动脉病变血管数分组中分布有统计学差异(P＜0.05)，偏相关分析示胰岛素原的含量与Gensini评分与病变血管数显著正相关，其偏相关系数分别为0.3156(P＜0.01)与0.2752(P＜0.05)，而HOMA指数与两种评分的相关未有统计学意义；多因素线性逐步回归分析结果示胰岛素原水平与Gensini评分独立正相关(P＜0.01)；多因素Logistic回归分析显示，胰岛素原的水平为冠心病的独立的危险因素，其OR值及其95％可信区间为2.268(1.253～4.105)(P＜0.01)，HOMA指数未进入模型。

SBP and DBP increased with elevated quartiles of INS. INS was positively related to SBP and DBP. Age-and setting- adjusted partial correlation coefficient between INS and blood pressure was 0.10983 (P=0.0004)/SBP and 0.10694 (P=0.0006)/DBP in men; and was 0.12561 (P=0.0000)/SBP and 0.09986 (P=0.0005)/DBP in women.

SBP、DBP随INS四等分而显著性升高；男性INS与SBP、DBP的年龄调整偏相关系数为0.10983(P＝0.0004)和0.10694(P＝0.0006)；女性分别为0.12561(P＝0.0000)和0.09986(P＝0.0005)。

It is the peak time of interleukin-6 levels that the partial correlation coefficients were significant, and that indicated that interleukin-6 levels increase lipolysis beyond a threshold level.

而偏相关系数具有显著性意义的时刻大都是白细胞介素-6水平的峰值，这可能是因为白细胞介素-6水平需要超过一定的阈值才参与脂肪水解的调节。

By quantitative analysis of partial correlation coefficients of the regression models, the key silvicultural techniques of growing Masson pine plantation can be scientifically determined as site control, inheritance control and density control.

通过对回归模型偏相关系数的定量分析，可以确定马尾松人工林培育的关键技术措施是立地控制、遗传控制和密度控制；同时，还可根据各项造林技术措施和林分年龄，预测马尾松林分的生长。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。