查询词典 regression

In a word, differential coefficient and vegetation index were much effective than reflectance for corn FPAR estimating, and the stepwised regression of multibands differential coefficient showed the best regression with R^2 of 0.944.375 nm purpled band and 950 nm near-infraed band absorbed by water showed prodigious potential for FPAR estimating precision.

除红、绿和常用的近红外波段外，375nm附近紫色波段和950nm附近的近红外波段用于估算FPAR也可以得到较理想的结果，特别是水分强吸收的波段具有较好的提高FPAR估算精度的潜力。

Regression analysis was used to associated factors,10 factors selected in the regression model included father lead exposure,did not wash their hands before the meal,the painted fitments in the rooms,usually play in the open air,the children's residence,sheet iron canned goods,peanut,bean,agaric and milk.

以血铅值为因变量，家庭装修、燃料、饮食等为自变量，经多元逐步回归分析(P=0.01)，有10个因素被选入方程，其中，父亲接触铅、儿童饭前不洗手、室内家具为油漆面、经常在户外玩、儿童所在居住地、吃铁皮包装的罐头制品、经常吃花生等7项因素与儿童血铅水平呈显著正相关

A case study shows that the stepwise regression model of daily runoff prediction based on wavelet decomposition is superior to auto-regression model, and is able to predict the daily runoff in 1~3 days in non-freeze-up period and 1~7 days in freeze-up period with accepted accuracy.

计算实例表明，本文提出的基于小波分解的逐步回归日径流预测模型的预测精度高于多元自回归模型，能对非凌汛期未来1~3天以及凌汛期1~7天的日均流量进行预测，能够为制定水电站未来的发电计划提供科学的依据。

Daughter-dam regression, daughter-dam regression wit hin sire, half-sib correlation and intro-unit half?sib correlation were used in the study to estimate genetic parameters for several traits of Albas type of In ner Mongolia cashmere goats, Traits included in this paper were cashmere yield,cashmere thickness,staple length,body eight,cashmere stretched length and cashmere fineness.

本研究应用女母回归法、公畜内女母回归法、半同胞相关法和单元内半同胞相关法对内蒙古阿尔巴斯白绒山羊的产绒量、绒厚、毛长、体重、绒伸直长度和细度等六个性状的遗传参数进行了估测。

Our study shows that Bax ,the protein of accelerating apoptosis, may participate in the proliferation and regression of hemangioma. 2 The expression of TGFβ1 in the involuting phase was higher than in the proliferative phase, the difference was statistically significant, p＜0.01. 3 This shows that Bax and TGFβ1 may be the important factors which cause the apoptosis of hemangioma and accelerate its regression as well.

1 Bax在血管瘤增生晚期开始表达，至退化期Bax的表达达到高峰，提示Bax这种促进细胞凋亡的蛋白参与血管瘤的增生与退化过程。2 TGFβ1在血管瘤退化期的表达高于增生期，差异有统计学意义，p＜0.01.3 提示Bax与TGFβ1可能是引起血管瘤凋亡，进而促进其退化的重要因素。

objective:to investigate the expression and significance of rb in the occurrence, development and regression of infantile hemangiomas.methods:the expression of rb was examined in the proliferative stage and catagen of human hemangiomas and normal skin tissues by using immunohistochemical technique.immunohistochemical technique for factorⅷ-related antigen was used to prove that the cells which expressed rb were endothelium.image analysis system was applied to measure the expression level of rb at different stages of hemangiomas and in normal skin tissues.results:the expression of rb was significantly lower in proliferating hemangiomas than that in involuting hemangomas(p.05).conclusion:rb might play an important role in the regression of human hemangioma endothelial cells and anti-angiogenesis.

目的：探讨rb蛋白在血管瘤发生、发展及退化过程中的表达状况及其意义。方法：采用免疫组织化学方法检测人皮肤血管瘤增生期、退化期及正常皮肤组织中rb的表达水平，并结合第ⅷ因子相关抗原的免疫组织化学染色证实表达rb的细胞是血管内皮细胞。利用计算机图像分析技术测量不同时期血管瘤组织和正常皮肤组织rb表达的积分光密度和面积。结果：增生期血管瘤内皮细胞rb表达水平低于退化期，差异有显著性（p.05），退化期血管瘤内皮细胞rb表达水平与正常皮肤组织相比，差异有显著性（p.05）。结论：rb通过抑制血管瘤内皮细胞增殖和血管生成而在血管瘤的退化过程中起重要作用。

In practical work, we can fit the empirical equation of regression according to least square method when we use the old data, and needs to make the Real-time treatment for new acquired data in the light of the equation, namely, we need combine new acquired data with the original data, then infer the new empirical equation of regression.

在实际工作中，当我们用旧数据根据最小二乘法拟合出经验回归方程后，常常获得一些新的数据，需要对新获得的数据进行实时处理，即要把它和原有数据结合在一起算出新的经验回归方程。

The application of multivariate linear regression'and univariate multipower regression to research and manufacture of new products is introduced.

论述了多元线性回归和一元多次方回归在新品研制和生产实践中的应用；编制了程序，能自动拟合回归方程。

It chooses the number of landscape types as human interference factors to construct artificial neural network model, multi-model adaptive regression splines, support vector machine model and projection pursuit regression model to respectively analog analysis human disturbance on the impact of the landscape diversity, dominance and evenness.

选择景观类型数量作为人类干扰因子，构建人工神经网络模型、多元自适应回归样条模型、支持向量机模型和投影寻踪回归模型，分别模拟分析人为干扰对景观多样性、优势度和均匀度的影响。

The author used to solve the linear matrix method to simulate the equations of quadratic regression equation work curve with only a few simple mathematical expressions for the second straight three coefficient regression equations, received the good effect.

作者用矩阵法求解线性方程组的方法来模拟工作曲线的二次回归方程，仅用几个简单的数学表达式就直接求得了二次回归方程的三系数，收到了很好的效果。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。