正交极

The prepared sulfated lentinan was identified by chemical methods.

结果：通过对正交实验结果的极差分析。

In the orthogonal designable experiment ,the analysis results of zirconium source, precipitation , the sulfating agent is 1.54%, 2.27%, 5.11%,respectively. This result show that the influence of sulfating agent to the catalytic activity is the biggest. Under the same density of the sulfuric acid soaks, the effect of sulfuric acid is well compared to ammonium sulfate .The second is the precipitation, but the influence of the zirconia source is the smallest.

正交设计实验中锆源、沉淀剂、硫酸化试剂的极差分析结果分别为1.54%，2.27%，5.11%，此结果说明硫酸化试剂对催化剂的影响最大，其次是沉淀剂，锆源的影响最小，同时表明以Zr(NO3)4·5H2O为锆源、乙胺为沉淀剂、硫酸为硫酸化试剂是催化剂的最佳制备方案。

In order to improve the conditions of synthesis, the effects of kinds of catalysts, mole ratio of alcohol and acid, reaction time were investigated by the variance analysis.

利用正交设计法，通过极差分析，探讨了催化剂种类、醇酸摩尔配比和酯化时间及它们之问的交互作用对酯的收率的影响。

And the "three-factor quadratic regression orthogonal rotary method" was adopted to study mixing performance of the mixer,after the machine had been designed and trial-produced. It was showed that the optimum technological parameters for mixing time, block coefficient and rotary speed of the paddle shaft were 180 s, 0.75 and 56 r/min, respectively. At the same time, the remains in the bin was little (0.015%). The effe...

为了提高双轴桨叶混合机的混合性能，采用二次回归正交旋转组合试验，对设计样机进行混合均匀度及机内残留率的试验研究，得出了其工作参数的合理组合：混合时间为180s，充满系数为0.75，桨叶轴转速为56r/min；机内残留量极小(约为0.015%)，满足其作为配合饲料生产，尤其是预混合饲料生产的工艺要求，也为进一步改进设计提供了依据。

The preparation of sodium salt of phytic acid degrease Rice bran dip - dye steep liquor with the method of absorption of ion exchange resin is studied.

开发了用离子交换树脂吸附法以脱脂米糠浸泡液为原料生产植酸钠的新工艺，采用正交设计及极差分析法确定了最佳工艺条件，植酸的平均收率达到96％以上。

The biggest characteristics in this paper is using independent quantitative range analysis and variance analysis of orthogonal experiment to analyze die casting defects, base on these analysis, detect the weight of each process parameter to die casting defects, then synthetically think over the influence of whole casting quality by the weight of every die casting defect, to balance and choose the level of casting process parameter for seeking the whole quality optimization of casting.

本文最大的特点是将各压铸缺陷进行独立量化的正交实验极差分析和方差分析，通过这些分析可知各工艺参数对此铸造缺陷的影响权重，然后综合考虑各铸造缺陷对轮毂铸件整体质量的影响权重，权衡和舍取工艺参数的水平，以达到铸件整体质量的最优化。

The paper takes Breakingfruit Chinkapin fibre and other wood fiber compound manufacturing MDF's Processing-parameter for research object. Use the diagonal intersection trial law designing the trial scheme. The focal point is studied the major Processing-parameter of Breakingfruit Chinkapin with other woods to manufacture MDF. And internal bond strength, modulus of rupture, modulus of elasticity, formaldehyde emission content, thickness expansion rate of water absorbing and density of MDF are analysed. From Variance, Range and other methods seek the better Processing-parameter.

本文以黎蒴栲材热磨纤维与其他树种热磨纤维复合制造MDF工艺为研究对象，采用正交试验法设计试验方案，并根据国家标准规定的测试方法对压制成的MDF的内结合强度、静曲强度、静曲弹性模量、甲醛释放量、吸水厚度膨胀率等多项性能进行分析，利用方差、极差等分析手段寻找合理的制造工艺参数。

Analysing the information strcture of the cross diploes, a DOA and polarization estimation method is presented for broadband signals.

研究了正交偶极子阵列的信息构成，提出基于该阵列的宽频段信号DOA与极化联合估计算法。

The process conditions of carrot koumiss fermented by Lactobacillus acidophilus were optimized through range and variance analysis of orthogonal test.

利用正交试验极差、方差分析对胡萝卜嗜酸乳杆菌乳酒的制作工艺条件进行优化。

In our study, ultra-fine ZnO powder , ultra-fine TiO〓 powder , and zeoliteAg , which were all surface modified with titanium coupling agent, were pelletized with PP into masterbatch, and melt-spinning with PP to obtain PP fiber with good antibacterial property and good UV-cut property.

采用正交实验，以沉降体积为测试指标，研究不同粉体表面改性因素对粉体表面改性效果的影响，发现偶联剂用量是粉体表面改性的最相关因素，随粉体表面改性偶联剂用量的增加，粉体沉降体积减小，并出现一极小值，该值小于基于粉体粒径计算的理论值。

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。