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A mathematical model of the relation between ethanol concentration, solid-liquid ratio, time of ultrasonic wave and the extraction ratio of polyphenol in oil-tea seed residue has been established by means of quadratic general rotary unitize design and ultrasonic wave cooperated method.

采用二次通用旋转组合设计试验方法和超声波辅助提取工艺方法，建立了乙醇浓度、料液比、超声时间与油茶籽饼多酚类物质提取率之间的数学模型，绘制了单工艺参数、双工艺参数与多酚提取率之间的函数图像，得出了多酚类物质提取的最佳工艺。

By default, the calculation is linear and unweighted, but quadratic and weighted variants are also provided.

缺省情况下，计算是线性的和非加权的，不过也提供二次的和加权的的变体。

The results showed that Linear model and Quadratic model were much more simulated the observed data of Aspergillus versicolor at 4 ℃ and 10℃, in addition, the latter was verified to be better than the formal. At 20℃, 28℃ and 30℃, the effects of simulation by classical Gompertz model and Logistic model had gained better results.

结果表明杂色曲霉在4℃、10℃温度条件下，用Linear模型和Quadratic模型拟合效果较好，且后者优于前者；在20℃、28℃和30℃条件下，用经典Gompertz模型和Logistic模型拟合效果较好。

In this paper, the effects of the rigid body motions and low frequency surface errors on the image quality were analyzed. Quadratic equations were used to build the mathematical model of the Wolter type I and II X-ray telescopes and reduce the computational complexity of ray tracing. With the help of a self-developed optical surface analysis code, the effects of the perturbations of the mirrors on the image quality was analyzed and the growth of the image spot formed by deformed telescopes was calculated, this is important for giving the reasonable fabrication tolerance.

在本篇文章中，详细分析了刚体运动误差和低频表面误差对成像质量的影响；使用空间解析几何学的二次曲面方程建立Wolter I、II型X射线掠入射望远镜镜片的数学模型，降低光线追踪的计算复杂度；借助自主开发的光学仿真软件分析了国内研制的X射线成像望远镜的刚体运动误差和低频表面误差对成像质量的影响，计算出像点艾里斑半径均方根值随误差变化的增长率，对工程上提出合理的制造公差的误差容限有重要的指导意义。

We find that the changing laws of antibodies in egg yolk and serum of laying hen are almost consistent, and the antibody Ievei in egg yok are always (more than 15 days after first immunization) high than that in serum. When several bacterins are used simultaneously, they can work in cooperation with each other. The quadratic rotary combination design is used to study the isolation of water-soluble proteins from the Egg Yolk by simple dilution with water.

并对这些抗体的动态变化规律进行观测，发现鸡血清抗体IgG与卵黄抗体动态变化规律基本一致，且蛋黄抗体IgY效价在基础免疫15天后总是略高于同期鸡血清抗体IgG；另外发现多株菌在同时免疫时具有协同免疫作用。

The Nash equilibrium problem with l2-nor m bound disturbance was studied. The problem was considered as a compound dynam ic game described by N-person non-cooperative dynamic game and two-person zer o-sum dynamic game. By applying H∞ control theory method, the existence conditions of linear quadratic Nash equilibrium H∞ disturbance attenuati on strategies were presented and proved, and its state feedback Nash equilibrium solutions were given.

研究具有l2范数有界不确定性扰动的纳什均衡问题以具有不确定性扰动的线性二次纳什均衡对策问题为例，将其归结为由二人非合作非零和对策和各对策方与外部扰动的二人零和对策构成的复合对策问题，应用H∞控制理论方法，给出并证明了扰动衰减H∞状态反馈策略存在的条件和求解方法，并通过简例说明了算法的有效性

An experiment was conducted to study the effects of original zymolytic condition of brewer's spent grains-based bio-organic fertilizer on degradation of total carbon and lignocellulosic by using the quadratic uniform-precision rotatable central composite design including four factors and five levels.

试验应用二次通用回归旋转组合设计四因素（1/2 实施）方案，研究酒糟型生物有机肥堆制初始条件对总碳、木质纤维降解的影响，旨在为木质纤维高效快速降解提供理论依据。

The results showed: 1 RN didn't the leaf width,leaf long,leaf area,yield,productive value and average price of flue-cured tobacco,but had significant effect on grad composing,content of chemical component and the accumulation of N,K and Cl.Within limited rang of RN,the relations between yield,average price,yield of high grad tobacco,yield of low grad tobacco,nicotin,N,reducing sugar,Cl,amylum,volatile base and the quotient of ammonium would been described by significant quadratic polynomial,and the relations between K and the quotient of ammonium conformed to negative linear equation;2With a RN of 75%∶25%,the value of proportion of high and middle grad tobacco,content of nicotin,N,K,uptake of N and K/Cl were the highest,volatile base was lowest.

结果表明：1RN对烤烟的农艺性状、产量、产值、均价等没有明显影响，而对烤烟的等级结构、内在化学成分含量、氮、钾、氯的吸收量有着显著影响，可以用显著的二次多项式模型或直线相关方程描述产值、均价、上等烟产量、下等烟产量等经济性状以及烟碱、总氮、钾、还原糖、氯、淀粉、挥发碱等内在化学成分的含量与铵态氮份额之间的关系；2RN为75%∶25%时，中上等烟比例、烟碱、总氮、钾、钾氯比、氮吸收量最高，挥发碱含量最低。

By using the quadratic regression orthogonal experimental method with three factors and five levels, the relationships between the microwave power applied, the sample thickness, the pressure in drying chamber and the rehydration ratios, chlorophyll and vitamin C retention ratios of dried Chinese gooseberry slices, as well as the energy consumption of drying process, were analyzed, and the regression mathematical models for experimental indices and factors were established. At last, the optimal combination of the parameters for the microwave-vacuum drying technology of Chinese gooseberry slices was obtained through nonlinear optimization method with many targets.

通过3因素5水平的二次回归正交试验，分析了微波功率、物料厚度、干燥室压力与猕猴桃切片干制品复水率、叶绿素含量、维生素C含量及单位耗电量的关系，建立了各指标与试验因素间的回归数学模型，并利用多目标非线性优化方法，确定了猕猴桃切片微波真空干燥最优工艺参数。

Integrating the linear quadratic regulator carol theory and integral sliding mode control, a global robust optimal eliding mode control strategy was proposed for the brushless DC motors.

针对无刷直流电动机伺服系统，将线性二次型最优调节器控制理论与积分滑模控制相结合，提出了一种全局鲁棒最优滑模控制器的设计方法。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。