曲线回归

Methods The routine MR imaging was performed on 114 intradural extramedullary tumors with a 1.0 Tesla MR unit.Rank correlation and regression coefficent were analyzed for MR characteristics of neurilemmomas、neurofibromas and meningiomas.Dynamic spin-echo MR imaging was performed on 23 cases types of contrast enhancement ratio-time curves were analyzed.

使用1.0 Tesla MRI系统(Magnetom Impact，Siemens)对114例髓外硬膜下肿瘤进行常规扫描，对常见肿瘤(神经鞘瘤、神经纤维瘤、脊膜瘤)的MRI征象进行等级相关和回归系数分析，同时对23例肿瘤进行SE(200/15)序列动态增强扫描，分析CER-T曲线类型。

The results of morphological observation and measurement of middle arc curve of outside mandibula in 95 Chinese adults(male 50, female 45)are as follows:The curve is approximately a parabola and k(male 0.02861+0.0007,female 0.03055+0.0005) in formula(Y=KX~2)is calculated by means of liner regression.

线性回归法得相关系数r≥0.95，计算曲线经验公式Y=KX~2的系数，男性0.0286±0.0007、女性0.03055±0.0005。此线与&下颌骨外侧下弧线&和&下颌骨外侧上弧线&的K值比较有显著差异(P.05)。

It utilized factor analysis and regression analysis ofthe multi-statistics to make the quantitative analysis on a great deal of core proxies in the North Indian Ocean and Indonesian Archipelago areas, and acquiredthe exact conversion relations of paleoceanic environment parameters (sea surface temperatureand salinity) and proxies. Then it made the change curve which can show the changes of paleo-ceanic environment parameters (sea surface temperature and salinity) which followed the changesof depth and provided the contrast between paleoceanic environment parameters of different coreson the landscape orientation. This paper supplied a more scientific and exact method for resumingthe paleoceanic environment on paleoceanography research.

本文阐述了以古海洋学数据库系统数据为基础的古海洋学多元统计分析模型，利用多元统计学中的因子分析和回归分析技术对北印度洋以及印尼多岛海地区大量岩芯的替代指标做定量分析，求出古环境参数与替代指标的精确转换关系，从而做出各岩芯处古环境参数随深度的变化曲线，提供不同岩芯在横向上的古环境参数对比，为古海洋学研究中恢复古环境提供了一种更科学更精确的方法。

Carrying out a fitting to curves between rising height of capillary water and time with various functions,it found that fitting effect was best with secondary polynome regression equations under the log coordinate.

对毛细水上升高度与时间关系试验曲线用各种函数进行了拟合，发现毛细水上升高度与时间过程在对数坐标下用二次多项式回归方程进行拟合效果最好。

This paper is based on characteristics of transpacific shipping, analyzes its market features, and makes forecasting on container volumes of coming years by using three methods which includes time-serious, regression and gray theory.

本文针对太平洋航线的特点，分析了其市场形态和特征，利用时间序列，回归曲线和灰色理论，结合该航线供求关系，预测了该航线未来几年的集装箱运量。

HDL reference, in which 1μg apoAI was thought of as one activity unit, was prepared by ultracentrifuging.

测定时，以超速离心制备的HDL参考品为标准，按每1μg apoAI为1个HDL活性单位，由参考品的光吸收值和相应的活性单位数，求出HDL生物活性标准曲线的双对数回归方程，并由样品的光吸收值计算HDL制剂的生物活性。

After glucose is consumed, the yeast cells can metabolize ethanol for diauxic cell growth as well as product formation.

建立了描述此现象的数学模型，从实验数据回归获得了模型参数值，模型的计算曲线与实验数据拟合较好。

The reservoir rock types in the region of interest are grain limestone, algal limestone, cryptite, siltstone, muddy limestone and mudstone. The thesis identified as a result of changes in the deposition causing the heterogeneity in plane, and then the geological oil reserves have been calculated in accordance with the areal heterogeneity.3、Based on the data of core analysis, bore logging, array induction imaging log and FMI, porosity and permeability model were built using regression analysis. Through testing 45 rock samples, a, b, m, n value were obtained and used to calculate single-layer oil saturation value using the Archie formula. According to the theory of laterolog and inductolog, resistivity ratio and cross plot were used to identification effective thickness. Effective thickness was identified delicately in 103 wells. Based on the over work, active porosity and oil saturation was calculated accurately.4、According to observation of 100 pieces of the thin slices, cast thin slices and 383m core in three wells, the chief diagenesis in this area were compaction, cementation, denudation and cataclasis. Cementation and denudation were universally influenced active porosity this area. The intergranular pores, residual pores and secondary pores were formed in thin carbonated reservoir of lacustrine facies.5、The influence of reservoir heterogeneity to reservoir calculation was analyzed systematically using actual data. And the conclusions were as follows:①The principal reason leading to oil distribution unequal is interior structural feature of reservoir in structural hydrocarbon reservoir.

确定了由于沉积微相的变化而导致的平面非均质性，进而在平面上按照平面非均质单元计算了石油地质储量。3、利用岩心分析、常规测井曲线与阵列感应、成像测井资料相结合，分岩性利用回归分析方法建立了储层孔隙度、渗透率模型；通过对45块岩样进行岩电试验，获取了a、b、m、n值，利用阿尔奇公式计算了各单层含油饱和度值；根据侧向电阻率和感应电阻率串并联特性，利用电阻率比值法与常规交会图法相结合重建了有效厚度图版，对全区103口井目的层段进行了有效厚度精细划分，通过以上工作，准确求取了储量计算单元内有效厚度参数、有效孔隙度参数以及含油饱和度参数。4、通过对研究区3口井383m岩心观察，100余块薄片、铸体薄片镜下鉴定得出：油泉子油田上、下油砂山组储层主要成岩作用是压实作用、胶结作用、溶蚀作用和破裂作用，其中溶蚀作用、胶结作用最普遍，这两种作用对有效孔隙度影响最大，以上成岩作用形成了原生粒间孔、粒间残余孔和次生孔隙(如粒间溶孔、粒内溶孔、铸模孔、晶间孔等)为主的薄层湖相碳酸盐岩储层。5、利用实际资料，系统分析了油藏非均质对储量计算的影响，认为：①对于构造油气藏而言，油气藏构造及断裂特征是造成油气分布不均的首要原因，储集条件相同的条件下，构造高部位有利于储存油气，油气在垂向的重力分异体现了油气藏内部构造的不均一特征。

Linear calibration curves for the standards run with both eluents showed regression coefficients (r2) of 0.9998 or better.

使用两种洗脱液做出的线性校准曲线的回归系数（r2）为0.9998甚至更好。

Derived flexibility curvature formula of two-dimensional structure, and the damage index of plate based on these formula, namely flexibility curvature matrix.

之后定义了等效柔度曲率变化率，给出了ECR-SD曲线并通过仿真模拟，回归了板结构的损伤程度的判别公式。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。