响应面

Methods: Response surface methodology was applied to study effects of extraction temperature, ethanol concentration, extraction time and solid to liquid ratio on extraction yield of anthraquinone and stilbene glycoside as well as clearance rate of the extracts to DPPH radical.

通过单因素和中心组合试验，对影响何首乌中二苯乙烯苷、蒽醌类化合物含量的提取因素（温度、酒精浓度、时间、料液比）进行了研究，同时将提取物清除DPPH自由基的能力作为考察指标，运用响应面分析法确定清除自由基组分提取的最优化工艺条件。

After confirming the failure models of the structure and the probability distributing of the stochastic variable, we could use Monte Carlo Method and Response Surface Method doing reliability analysis of the bridge.

在确定结构的失效模式和随机变量的概率分布后，分别采用蒙特卡罗法和响应面法对桥梁进行可靠性分析，比较两种计算方法的计算结果，表明两者比较接近，都取得较好的计算效果。

Solid propellant ; structural reliability ; response surface method ; finite element method ; R-F method

固体推进剂；结构可靠度；响应面法；有限元法； R-F法

Verified by network response surface, TAA was improved to be an applied and valid method of calculating the risk occurrence probability.

经过神经网络响应面法的检验，证明TAA方法是一种实用而又有效的风险概率计算方法。

One is that the acceleration of rigid body and the in- vade distortion are separately fitted with elliptical and linear response surface

一种是将刚体加速度和侵入变形分别拟合为椭圆和线性响应面

The type, initial feeding time and concentration of precursor for HV unit formation had great effects on PHBV production in shake flasks. Propionate was selected as the better precursor for HV fraction than valerate after comprehensive survey of these two precursors. The suitable PHBV shaking-flask culture conditions were obtained through the analysis of PHBV fermentation process, the investigation of several factors by using RSA method and the fed-batch experiments. Cell dry weight, PHBV content, PHBV concentration, HV fraction and yield coefficient of HV unit to propionate were 27. 7g/L, 80.7%, 22. 4g/L, 16. 1mol% and 0.50g/g, respectively.

在共聚物PHBV的摇瓶发酵过程中，PHBV中HV组分形成的前体物质的种类、初始加入时间以及加入量是影响PHBV发酵过程的重要因素；在综合比较丙酸和戊酸这两种前体的基础上，选择丙酸作为HV组分合成前体较适宜；通过对PHBV发酵过程曲线分析、影响PHBV发酵指标的各因素的响应面分析以及摇瓶发酵补料试验，得到了较适宜的PHBV摇瓶发酵补料条件，在此条件下，细胞干重、PHBV含量、PHBV浓度、HV组分含量和HV组分对丙酸的产率系数可分别达到27.7g/L、80.7％、22.4g/L、16.1mo1％和

This paper puts forward an experimental model with the first-order response surface method and the design of experiments to study the impact of factors on dynamic performance of PEMFC. These factors include clamping pressure, fuel gas pressure and flux. The model is finally validated by volt-ampere experiments.

本文通过正交实验设计，利用一阶响应面法得到各因素对电池性能影响的实验模型，综合考虑了装配压力、燃料气体压力和流量对自增湿、自呼吸型PEMFC动态性能的影响，并结合伏-安特性实验进行了验证。

A Plackett-Burman design was used to select 3 important factors from 8 impact factors which affected protease fermentation. They were bean cake meal, yeast powder and glucose in culture medium. The optimum components obtained by the response surface methodology were bean cake meal 1.8%, yeast powder 0.36% and glucose 0.14%, respectively.

首先采用二水平Plackett-Burman设计对影响产酶的8因素进行筛选，获得培养基成分中3个重要影响的因子：黄豆饼粉、酵母粉、葡萄糖；再利用响应面分析法对该3个因素进行3水平的优化，获得它们的最佳组合：黄豆饼粉1.8%、酵母粉0.36%、葡萄糖0.14%。

The supercritical carbon dioxide extraction of oil from Zanthoxylum bungeanum seed was optimized by response surface methodology.

利用响应面法对花椒籽油的超临界CO2萃取工艺进行优化。

The response surface methodology was used to optimize hydrolysed conditions of fruiting body in Armillaria luteo-virens Sacc including the central combined design, response surface analysis, evaluation of model and certification of the analysis from response surface plot.

酶解条件的优化采用中心组合响应面分析法：建立数学模型回归分析，模型评价，最后进行验证实验。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。