查询词典 quadratic

By solving the quadratic regression model equation with appropriate statistic methods, the optimal conditions of cultivation time, temperature and ratio of substrate to water are 32.8 h, 31.2 ℃ and 1:1.24 respectively.

通过对二次多项回归方程求解得知，在上述自变量分别为培养时间32.8h，培养温度31.2℃，固水比1：1.24时，糖化酶的产量从最低值656.2μ/g干曲提高到1645.1μ/g干曲。

Nonlinear regression and quadratic response surface models.

非线性回归和二次响应面模型。

Quadratic response surface regression model Level of medical service Contour plot Residual plot

二次响应曲面回归；医疗服务水平；趋势图；剩余图

A quadratic response surface regression experimental design was disposed based on influencing factors including temperature,time and alkali concentration.

结果表明，其合成条件为反应温度183.8℃；反应时间2.86 h；碱浓度6.43%，苦楝籽油最大预测值为87.65%，与试验值86.23%相差仅1.62%，拟合度较好。

Sampling points were obtained by using optimal Latin hypercube design of experimental method,meantime,in order to improve computing efficiency,application of stepwise regression response surface approximate method in the MDO system of the vehicle crashworthiness and free mode of Body-In-White,the approximate model was optimized by using sequential quadratic programming method.

采用最优拉丁方试验设计方法进行样本数据设计，同时，为了提高计算效率，采用了一种新型的响应面构建方法——逐步回归响应面方法构建了整车耐撞性与白车身自由模态多学科系统的近似模型，利用序列二次规划优化方法对此近似模型进行优化，避免了整车碰撞传统优化设计方法计算量大，在碰撞非线性系统优化中常常易导致收敛缓慢甚至不收敛的缺点，在满足了CMVDR294安全法规的同时，使得白车身的扭转模态值得到提高，汽车重量得到较大程度的减轻。

With ripe banana as raw material, the total extraction rate of cellulose and the yield of large-molecule products in the process of starch enzymolysis characteristics of banana pulp were researched by using limited hydrolysis method of amylase, and the best process parameters were confirmed through general revolving combination design of quadratic regression and response surface analysis.

方法］以成熟香蕉为原料，采用淀粉酶有限水解法，研究其果肉淀粉酶解特性过程中纤维素的总提取率及大分子产物得率，并通过二次回归通用旋转组合设计及响应面分析确定最佳工艺参数。

Nonlinear regressor model,quadratic blending model and radial basis functionneural network model were employed to describe the steady-state behavior of the gasoline blending process ,and the least squares algorithm was utilized to identify parameters in these models.

采用非线性回归模型、二次型调合模型以及基于RBF神经网络的并联模型等多种模型，对汽油调合过程的稳态特性进行建模与参数辨识。

In Chapter 4 and Chapter 5, we discuss the quadratic finite element space with Regular mesh and the one with Criss-Cross mesh. We can respectively obtain the finite element asymptotic expansions and extrapolations in these situations. The high accuracy combination formulas are constructed.

在本文的第四、五章中，我们将在第二、三章中所使用的方法分别推广到Regular网格与Criss-Cross网格下的二次有限元空间中，得到了这两种情形下的有限元的渐近展式与外推结果，并构造出了相应的高精度组合公式。

Of course, the major reason for this is that the basic algorithms are very complex (such as Chinese Remainder Theorem, Theory of Quadratic Residues, and many kinds of cryptagraphic algorithms).

当然造成这种结果的原因是因为实现这些方案的基础算法很复杂（例如中国剩余定理、平方剩余定理以及各种密码算法）。

It is concluded that the order number determines the precision of temperature extrapolation method, and it can be controlled when the quadratic sum of residual error between the opposite solving and the original measuring is minimum. For the specific surface temperature curve, it is derived with the temperature on the site 0.0129cm.

分析结果表明，阶数决定著外推测试的结果以及结果的精度，阶数选取不当甚至会出现错误的外推测试结果，但采用反面求解求得的拟合曲线与实测得的原值具有最小的剩余误差平方和，可以有效地抑制其影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。