截面积

目的本研究通过对OSAS患者上气道截面积与线距测量的分析，探讨上气道的阻塞部位及截面积与线距之间的关系。

Objective To study the relationship between the cross-sectional area and liner distance of the upper airway space of the patients with obstructive sleep apnea syndrome ( OSAS ) .

研究了连接管长度、截面积和主管截面积对Helmholtz消声器传递损失的影响规律；穿孔孔径、共振腔尺寸和内径尺寸对直通穿孔管消声器传递损失的影响规律。

Study on the influence of connecting pipe length , cross-sectional area and administrative area on the transmission loss of Helmholtz muffler . Study on hole diameter , perforated pipe diameter , diameter of resonant cavity of straight-flow perforated tuber muffler transmission loss of influence .

假定B是核的横截面积。

B is the assumed cross-section of the nucleus .

腰痛组骶棘肌横截面积与正常组无差异（p＞0.05）。

Cross-sectional area of sacrospinalis were no significant difference between the patients and healthy subjects ( p > 0.05 ) .

阻塞点截面积与体重指数、颈围呈负相关性（P0.05），但相关性系数较小。

Intercept point size and body mass index , neck circumference-negative correlation , but smaller correlation coefficient .

而且DM组各病程大鼠肾小球截面积均高于同批NC组（P<0.05）。

Mean glomerular area was evidently increased compared with the control group ( P < 0.05 ) .

横截面积相同，高度不同的压缩试件在X方向的压缩强度相差不大。

And with the same cross section , compress strengths in X direction of specimens with different height were almost the same .

我们用AVH三个参数反映椎管狭窄程度：A（area）&椎管横截面积下降率；

A ( area ) - the decline rate of cross section area ;

基于Tabu法的变压器铁心柱截面积优化

Optimization of Sectional Area of Core of Transformer Based on Tabu Algorithm

由此得到的部分电离截面积比对电子碰撞能量的依赖关系与K。

The variation of the partial ionization cross section ratio versus the electron collision energy gained from spectrums is compared with experimental results obtained by K.

由于采用此法可以提高目标信号／噪声比，因而也可使低RCS（雷达反射截面积）目标检测性能得到提高。

The results suggest that this method can improve the detection performance of low RCS target .

White采用模拟退火估计雷达散射截面积（RCS）的算法进行了分析和改进；

This was exemplified by the simulated annealing algorithm for SAR Radar Cross Section ( RCS ) estimation developed by R. G. White .

结果胎儿脐静脉入肝分支的截面积和大于静脉导管的截面积，两者的差异有高度显著性（P＜0.001）。

Results There was a significant difference of the total cross section area between the umbilical vein branches pass through the liver and the ductus venosus ( P < 0 . 001 ) .

目的探讨鼻声反射（AR）用于鼻腔截面积测量的准确性。

ObjectiveTo evaluate the accuracy of acoustic rhinometry ( AR ) in estimating nasal airway cross-sectional areas by computed tomography ( CT ) .

RDX的粒度对临界截面积的影响

Effect of RDX Particle Size on Critical Diameter

用组化方法与Northern分子杂交技术分析测定了增龄鼠肌纤维横截面积（CAS）与肌凝蛋白重链ⅡB型蛋白的基因表达和运动后上述两个指标的变化。

The histochemical method and Northern analysis were used to investigate the molecular mechanism of aging skeletal muscle atrophy and the influence of exercise on it .

如何实时高效的获取目标的雷达散射截面积（RCS）是现代军事研究的重要课题。

How to efficiently obtain the radar cross section ( RCS ) of objects has become a hot topic in modern military .

吻合口神经纤维通过率、吻合口远端轴突截面积均有显著性差异（P＜0.05，P＜0.01）。

Moreover , there were great improvement of axon cross rate and the recovery rate of sectional area of nerve fiber at the distal end in glue adhesion group ( P < 0.05 , P < 0.01 ) .

目的：对15号染色体上控制小鼠脊髓颈膨大截面积的数量性状基因座（QTL）进行精细定位。

Objective : To fine map quantitative trait loci controlling the cross section area of cervical enlargement on chromosome 15 of mice .

用线性拟合法及Gauss-Newton法计算正丁醇分子横截面积

Calculation of Cross Section Area of n-Butanol Molecule by Linear-Fitting and Gauss - Newton

OSAS患者上气道截面积与矢径、横径的相关性分析

Relationship Between the Cross-sectional Area and Linear Distance of the Upper Airway Space of the Patients with OSAS

研究了轰炸机的运动学、动力学模型，轰炸机红外目标辐射模型与雷达散射截面积（RadarCrossSection，RCS）模型。研究了红外制导导弹与雷达制导导弹的运动学与动力学模型。

The kinematics model , kinetics model , infrared radiation model and radar cross section model of bomer and the kinematics and kinetics of infrared guided missile and radar guided missile are studied .

注血后48h采用灌注固定法处死动物动物，留取基底动脉标本，通过测定基底动脉血管横截面积来评价CVS的程度。

The animals were sacrificed by perfusion-fixation and the basilar artery was taken 48 hours after the blood-injection in vivo .

采用射线跟踪和等效电流等方法计算金属垂直安定面的后向散射场和后向散射截面积（RCS）。

An approximate technique using ray-tracing and equivalent current method is adopted for calculating the backscattering fields and backscattering RCS of metal vertical stabilizers .

利用目标的方位角、运动速度、俯仰角和雷达散射截面积（RCS），提出了一种雷达目标识别方法。

A target recognition method of radar is presented in this paper , using azimuth , velocity , pitch and RCS of the target .

铸坯截面积大小对SCR连铸连轧电工用铜线坯质量的影响废杂铜冶炼技术在铜线坯生产中的应用

The Effect of Cross Section Area of Casting Bar on the Quality of Copper Rod for Electrical Application of SCR Continuous Casting & Rolling

结果表明，单相流时环形脉冲萃取柱轴向混合系数Ec值仅为相同截面积圆形脉冲筛板柱的40%。

Results show that the axial mixing coefficient E_e of single phase flow in an annular column is only 40 % of that in a circular column of the same cross section , under the same operation conditions .

统计学研究显示，病例组AHI与上气道最小截面积及SpO2均呈负相关（P0.05）。

There were negative correlations between AHI to SpO2 and the minimum section area of upper airway ( P0.05 ) .

结果OSAS患者RP、RG区气道截面积分别小于对照组；

Results In OSAS group , the cross sectional area of RP and RG regions was smaller than that of the control group .

曲细精管平均细胞数、平均截面积与血浆睾酮水平正相关（P0.01），与血清抗精子抗体滴度无相关性（P0.05）。

The average cell amount and the cross section area per seminiferous tubule showed significantly positive correlation sma testosterone ( P0.01 ), and no correlation with the titer of antibodies against sperm antigen .