查询词典 correlation analysis

A weak correlation existed between wood basic density and latitude/longitude, while a strong negative correlation existed between wood basic density and annual mean temperature, temperature in January, frostless season and accumulated temperature over 10℃ of the seed source.

种源木材基本密度虽与产地经纬度相关性较小，但却与产地年均温、1月均温、无霜期和≥10℃积温呈显著的负相关。

Based on Chen's correlation and our experimental data, a new revised correlation was proposed for the calculation of frictional pressure drop of gas liquid two-phase flow in helically coiled tubes oriented with various axial angles.

在对试验结果及前人研究结果进行详细分析的基础上，获得了第一个能适用於不同倾角放置螺旋管的单相及汽液两相摩擦阻力计算式，从而为汽液两相摩擦阻力及螺旋管的进一步研究和应用提供了依据。

The spatial distribution of correlation coefficient between hindcast and observation shows that high value areas are different among these methods. So it is hard to say which method is better than others. Thus three predicted results should be considered as well as distribution of correlation coefficient before final extreme high temperature prediction. The predictions by these methods for July, 2007 were generally close to the observation.

并以相关系数为衡量指标，应用交叉检验方法对三种方法的预测效果进行分析，结果表明不同方法高相关区的空间分布存在差异，在进行高温预测时，应综合各方法高相关区的预测结果给出综合预测意见。

The results indicated that vegetation biomass had a significant positive relationship with vegetation coverage. They had a significant negative correlation with bulk density of soil, and a positive correlation with macroaggregate, water stability macroaggregate, organic matter content, total nitrogen content, hydrolyzable nitrogen content, available kalium content, microbial biomass, and microbial respiration. However, they had no significant relationship with total phosphorus and available phosphorus.

在其恢复过程中，植被地上生物量与植被覆盖度呈正相关，它们与土壤容重呈负相关，而与土壤大团聚体、水稳性大团聚体、有机质含量、全氮含量、水解氮含量、速效钾含量、微生物量以及土壤呼吸强度之间呈正相关，与土壤全磷、速效磷含量无显著相关性。

The disturbance of intelligence caused by sex,age and job has no correlation with that caused by infracortical cava stroke,but it presents negative correlation between education extent and extent of disturbance of intelligence.

性别、年龄、职业与腔隙性脑梗死后引发的智能障碍无相关性，但受教育程度的高低与智能障碍的程度呈负相关。

The result shows that in the amorphous material along with the increasing of the interatomic distance to the chosen origin, and the correlation will weaken rapidly. When they apart several interatomic distances, there is no correlation, the relatively position approaches completely disorder.

计算结果表明，在非晶态材料中随着与选作原点的原子间距离的增加，相关性就迅速减弱，在相距几个原子间距的原子之间就显不出相关作用，其相对位置接近完全无序。

The convolution and correlation are identical under a certain condition. In this condition, the interaural cross-correlation coefficient of an anechoic source convolved with the BIRs can be described by the IACC of BIRs and by the effective duration τe of ACF of the anechoic source.

在特定条件下，卷积与相关是等同的，此时，干信号与BIRs卷积后的IACC可直接由BIRs导出的IACC与干信号的ACF的有效时间τe来表示。

Vindoline content showed a positive correlation with leaf width, plant height, whole-plant leaf weight, 100-leaf weight, petal diameter and leaf length; the positive correlation was significant for first lateral branch number and stem diameter (P.05) and notable for internodal distance.

本文利用反相高效液相色谱法检测了23种国内外长春花主栽品种的文多灵含量，对文多灵含量与品种的12个主要农艺性状(包括株高、节间距、茎直径、一级侧枝数、叶片长、叶片宽、叶片长宽比、百片叶重、全株叶片重、花瓣直径、种荚长度和种子数/荚)的相关性和通径进行了分析。

Some methods, in which synthesized theoretical seismogram of high frequency is taken as record signal and 20%random noise is superimposed on the seismogram, are used to analyze the theoretical seismogram. The digital experiment shows that in the correlating frequency range, Green's function method can measure precisely interstation phase velocity, but the results obtained by correlation and narrow band-pass filtering correlation methods are more dispersed.

以合成的高频理论地震图作为记录信号，并在理论地震图上叠加了20％的随机噪声，利用这些方法分析理论信号，数字实验表明：在相干频率范围内，格林函数方法能够精确测量台间相速度，而互相关法和窄带通滤波互相关法所得结果较为离散。

Partial pressure of arterial oxygen was positive correlation to lung compliance and negative correlation to intrapulmonary shunt.

俯卧位和旋转体位能改善ALI肺的顺应性、减少肺内分流，改善氧合；但俯卧位比旋转体位安全并能减少TNF-α的产生。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。