定向

The thesis also draw several conclusions as follows:(1) Orthogonal experiment design method can be viewed as a special case of genetic algorithm, i. e. a genetic algorithm with a fixed initial population, an oriented-mutation operator and one evolution epoch.(2) In terms of running steps, genetic algorithm is more complex than orthogonal experiment design method.

论文首次对正交试验设计法和遗传算法这两种独立发展起来的方法进行比较研究，提出(1)正交试验设计法是遗传算法的一种特例，即是一种初始种群固定的、只使用定向变异算子的、只进化一代的遗传算法；(2)遗传算法产生的优化解优于正交试验设计法产生的优化解，且遗传算法处理交互作用项的效率高于正交试验设计法；(3)遗传算法的步骤比正交试验设计法复杂，所需的试验次数也要多。

Based on analyzing and comparison of the several kings of theoretical formula and analyzing the composition and influence factor, this paper improves a common formula used in calculating jacking force in pipe jacking.

本文针对当前非开挖技术基础理论研究滞后于工程实践的现实，对顶管的推力理论、水平定向钻进的管道回拖力及其水平钻进过程中的孔壁失稳机理等问题进行了研究。

Concanavalin A is immobilized on a pre-activated chitosan microspheres, and then oriented immobilization of urease is carried out based on the strong interaction between ConA and glycoprotein.

将戊二醛将伴刀豆球蛋白和壳聚糖载体交联，然后利用ConA与脲酶糖链的特异性结合作用，实现脲酶的定向固定化。

It is found that the portion of edge areas of cuboidal γ'precipitates grew preferentially and the γ-γ'interfaces progressed concavely,which was followed by the enclosure of the adjacent vertical matrix channels (parallel to [001]), and the linked γ'precipitates gradually exhauseted the retained vertical channels and finally developed into rafted plates.

发现在定向粗化期间立方形γ＇沉淀的边缘部分优先生长，γ—γ＇界面呈内凹形方式推进，进而封闭了与之相邻的垂直基体通道（平行于［001］）；相互连接的γ＇沉淀逐渐消耗并最终耗尽被封闭的残余垂直通道而发展成完整的筏形组织。

The invention relates to a lamellar seal for sealing a shaft rotating about an axis, especially in a gas turbine, said seal comprising a plurality of lamellae (25) that are interspaced one beneath the other, are arranged in a concentric circle about the axis, and are fixed in the position thereof by means of hard-soldering, the surfaces of the lamellae (25) being oriented essentially parallel to the axis.

本发明涉及一种用于密封特别是燃气轮机上环绕轴线旋转的轴的片式密封，包括大量彼此相距的片(25)，它们设置在环绕轴线的一个同心圆内并借助于硬焊在其位置上定位，其中，片(25)利用其表面基本上与轴线平行定向。

Both BM-MSCs and BM-MSCs after directional inducing differentiation in vitro could promote the concrescence of skin wound area of naked mice.

人骨髓间充质干细胞和体外定向诱导分化后的骨髓间充质干细胞对裸鼠的皮肤创面都有促进愈合作用，但在特殊诱导液作用下的骨髓间充质干细胞并没有表现出表皮细胞的功能；并没有出现在上皮化的裸鼠皮肤细胞中。4。

A Finite Element algorithm, based on boundary conformal mapping techniques, is developed and applied to investigate the effect of kinetics on crystal growth of garnets from the melt.

开发了一种基于边界保角变换技术的有限元方法来处理自由边界问题，并成功地将其用于晶体定向生长过程中的界面动力学影响的研究。

The basic theory of the algorithm for test pattern generation using satisfiability is explored, including represent method of SAT-ATPG, search algorithm and analyses of achievement techniques. We describe how to represent circuits and fault detection problem as Conjunctive Normal Form . We improve an effient search algorithm suited to ATPG based on basic satisfiability algorithm.

本文研究了组合逻辑电路测试向量自动生成的可满足性方法，主要进行了可满足性的测试生成原理、实现算法、性能提高和测试向量的最大压缩等方面的研究，改进了一种有效的测试生成搜索算法SAT-ATPG，提出了隐含多路敏化的故障效应单路定向传播方法SOPCA、控制输入跟踪算法CIT和测试衍生算法TD，取得了较显著的效果。

This paper is proposed to study the relationship between external force and contractive velocity on muscle contraction and to study the directed motion and the energy conversional efficiency of myosin.

本文拟对肌肉收缩过程中的力与速度关系、肌球蛋白定向运动的能量转换效率问题进行理论研究。

Objective To study the indication, contraindication and short-term clinical effects of stereotactic radiotherapy in lung cancer.

目的 探讨立体定向放射治疗肺癌的适应症、禁忌症和近期疗效。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。