查询词典 orthogonal

This project studies the scale-dependent deformation behavior of the metal matrix composite, the void nucleation and void growth mechanisms at the micron/submicron scale. The main results are:(1) In prophase, growth and coalescence of the void embedded in the graded matrix are analyzed in detailed;(2) Based on the infinite solid model containing a micro-void, coupling effects of the void shape and the void size on the void growth are studied carefully, the results show that it seems to exist a critical equivalent void radius, which is associated with the material length. When radius of a microvoid is close to or smaller than the critical void radius, the micro-void growth rate is essentially eliminated;(3) The coupling effects of the particle shape and size on the mesoscopic stress fields within the particle and matrix are also investigated by introducing the conception of inclusion/matrix interfacial energy. The results show that the stress concentration factors within the particle and on the matrix/particle interface are also strongly size-dependent,so the void nucleation mechanism is size-dependent.(4) By employing a specific orthogonal curve coordinate frame and a 'kernel function' conception, a 'unified method'solving the spheriodal and spherical void problems is suggested; by this unified method, size-dependent plastic potentials of the porous materials containing the spheriodal or spherical voids are obtained, which extend the traditional Gurson model for the spherical void and GLD model for the spheriodal voids to the micron scale.(5) Based on the RVE model containing the spheriodal or spherical particles, the influences of the particle shape and size on the size-dependent mechanical behavior of metal matrix composite are studied.

中文摘要：本项目对金属基复合材料在微细观尺度下的尺度相关变形行为、孔洞形核及长大的机理和模型进行了研究，取得了如下主要结果：1）在前期研究中，探讨了基体的梯度分布对孔洞长大和聚合的影响；2）基于含孔洞的无限大体模型，探讨了孔洞形状和孔洞尺寸对其长大的耦合作用，结果表明：可能存在一个与材料特征长度相关的临界孔洞尺寸，当椭球孔洞的等效半径小于临界孔洞半径时，孔洞的长大受到明显抑制；3）通过引入基体/夹杂界面能的概念，分析了夹杂尺寸、夹杂形状对材料细观应力场的耦合影响，结果表明：颗粒内部和界面上的应力集中因子强烈地依赖于夹杂的尺寸和形状，因此，孔洞的形核机理是尺寸相关的；4）采用一种特殊的正交曲线坐标系和引入"核函数"的概念，"统一"地得到了含椭球和球形孔洞的材料的尺寸相关塑性势，它将传统的Gurson球形孔洞模型和GLD椭球孔洞模型推广到微尺度范围；5）基于含椭球和球形夹杂的体胞模型，初步研究了夹杂形状、夹杂尺寸对金属基复合材料尺寸相关力学行为的影响。

A new metric form is chosen to study the Weingarten translation surfaces which are translating in the two null directions in a pseudo orthogonal frame.

在伪正交标架下，选取一种新的度量形式，对沿两个类光方向平移的平移Weingarten曲而进行了研究。

Under cyclic pressure or torsion load, Four factors with two levels that might influence component stability were assembled into eight performing conditions by orthogonal design. Axial compression micromotion and torsion micromotion were cellected under the eight working conditions.

根据临床上多见的可能对假体微动产生影响的四种因素分设两个水平，采用正交设计方案，组合成8种处理工况对三翼臼进行轴向循环压力载荷测试，同理进行三翼臼的循环扭矩载荷测试。

The mignonette element's lye microwave extraction process related influencing factor carries on the single factor analysis and the orthogonal experiment to the peanut shell in discusses.The experimental result indicated:The fluid material the influence is bigger than to the extraction rate,Next is the microwave extraction time,Is small what to the extraction rate influence is the sodium hydroxide density.

对花生壳中木犀草素的碱液微波提取工艺有关影响因素进行单因素分析和正交实验探讨，实验结果表明：液料比对提取率的影响最大，其次是微波提取的时间，对提取率影响较小的是氢氧化钠的浓度。

The parameters for blanching and green- protecting of Opuntia Milpa Alta juice were studiedusing single factor and orthogonal experiment. The results showed that 1.5 times boiling blanching for 1.5min, and the centretemperature reached 93 ℃,not only inactivated the peroxidase, but also increased thecontents of total polyphenolics and soluble solid in the Opuntia Milpa Alta juice, and a well green- pro-tecting effect could be obtained by adding 100 μg/g Zn2+, 40 μg/g Cu2+,0.075 %Vc,0.025 % citricacidin blanc...

通过单因素实验和正交实验，对米邦塔仙人掌制备绿色蔬菜汁饮料的热烫护绿工艺条件进行了研究，结果表明：采用1.5倍体积沸水热烫1.5min，中心温度达93℃，可使过氧化物酶的活力基本丧失，也可提高仙人掌汁中总酚和可溶性固形物的含量，同时在热烫护绿液中加100μg/g的Zn2+、40μg/g的Cu2+、0.075%Vc、0.025%柠檬酸，护色20min，护绿效果好。

It has an orthogonal, explicit, and minimalist design that makes code easy to understand and easy to predict.

它有一个正交的，明确的，最低限度的设计，使代码容易理解和容易预测。

Under the condition of the ratio of Fe~(2+)to Fe~(3+)and NaOH molarity constant,the effect of variation of main technological parameter such as reaction temperature,mixing speed,reaction time,pH value on Fe_3O_4 magnetic particle formation,shape and particle size was researched by the orthogonal experiment.

在Fe~(2+)、Fe~(3+)铁盐配比及NaOH摩尔浓度一定的条件下，用正交实验考察了反应温度、搅拌转速、反应时间、pH值等主要工艺参数的变化对Fe_3O_4磁粒子的形成、形貌及粒径的影响。

A model of an additive mixture of Gaussian and non-Gaussian impulsive noise is adopted, and the asymptotical solution of the closed-form expression for the average symbol error rate of orthogonal space-time block coding over Rayleigh flat fading channel is derived by means of the Moment Generating Function with the approximate equivalent Multiple-Input Single-Output model of mixture noise.

采用脉冲和高斯加性混合噪声模型，利用矩母函数分析方法，通过建立多发单收近似等效模型，推导出Rayleigh衰落信道下MISO空时分组码误符号率闭式表达式的渐近解。

The amidation reaction between rapeseed oil and monoethanolamine was studied via orthogonal experiment.

通过正交实验对菜籽油与单乙醇胺的酰胺化反应进行了研究。

The optimized formula was gained by orthogonal test as follows: 80 g/L of meta-nitrobenzine sodium sulfonate,37.5 g/L of monoethanolamine,30 g/L of glycine,4.5 g/L of sodium thiosulfate and 0.03 g/L of lauryl sodium sulfate.

1前言尽管电镀技术愈来愈先进，但是出现不合格镀层总是难免的，因此，不合格镀层的退除和重新施镀，对资源的再生与合理应用具有重要意义。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。