在上文中
- 与 在上文中 相关的网络例句 [注:此内容来源于网络,仅供参考]
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A modefied egg function has been proposed and used in a bounding surface model. This model has potential value of applicaton since it reflects better actual situation of soil mass under loading. That is: when a stress point is still within the yield surface, the unrccovered plastic deformation would occur as stresses change, and using closed smooth function makes stress modification in the FEM much easier.
文中提出了一个改进蛋形函数,并采用这个函数建立了边界面模型,该模型由于机理上更好地反映了土体受荷时的实际情况,即当应力点在屈服面内时,随着应力状态的改变,仍然可以产生不可恢复的塑性变形,而在计算功能上由于使用了封闭光滑的边界面,不存在角点问题使有限元程序计算显得很方便,从这两个方面看,该模型具有潜在的应用价值。
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On this basis a design scheme of the database for SCADA based on the component object model is presented, in which the content and background of IEC 61970 standard is introduced first, then some different component model are assayed , then a design scheme of the database for SCADA based on the component object model is presented, the foreground application of SCADA is connected with the database by components.The new model have some advantages: system have disrelation with develop language ,the peculiarity of COM make the system fit in with different apply program developed with different language;(2) the system can be modified and upgraded easily by means of upgrading the component modules;(3) the system can be enlarged easily by means of adding the new component modules without quiet amendment in old system.
为此,本文介绍了一种基于组件对象模型的SCADA数据库系统设计方案,文中首先介绍了IEC61970标准的内容及产生背景,分析了几种不同的组件模型,在此基础上,提出了一种基于COM组件技术的SCADA数据库设计及访问模式,在此模式下根据SCADA数据库不同的功用划分了不同的组件模块,利用组件连接数据库与SCADA前台应用,基于组件技术的SCADA数据库设计有以下一些特点:(1)与语言无关性,COM的特性决定了此系统上可以应用不同语言开发的应用程序;(2)系统易修改及维护,用户可以通过更新组件模块的方式修改及维护系统;(3)系统易扩展新的功能,用户可以通过开发新的组件方式将新的应用与原系统结合,而不用对原系统做很大的修改。
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President Theodore Roosevelt in 1901 to be printed on letterheads in "The White House" to establish a formal name before the "Executive Mansion" The name is often used in official documents.
在西奥多·罗斯福总统于1901年以在信纸上印上"The White House"确立正式名称之前,"行政官邸"这一名称常常用于公文中。
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The concept of G unit interval and the definition of separable degree between elements on G unit interval are given, and some properties are discussed. Based on this concept, it determined a metric p, and ([0, 1], p) becomes a metric space (It is called G unit logical metric space). In this paper, the properties and structure of G unit logical metric space are discussed in detail, and get some good results.
给出了G单位区间[0, 1]的定义并在其上引入了元素间的可分度的概念,讨论了其基本性质,并在此定义的基础上确定了一个度量P,从而([0, 1], p)成为一个度量空间(文中称"G单位逻辑度量空间"),并对G单位逻辑度量空间的性质及其结构进行了详尽的讨论,并得到一些好的结果。
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Simulation results for both artificial and real data show the generalization performance of our method is a good approximation of SVMs and the computation complexity is largely reduced by our method.
文中最后对人工和实际样本进行了实验,结果说明了线性规划支撑矢量机在推广能力上较好地逼近了原支撑矢量机,而在计算复杂度上明显低于原支撑矢量机。
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The stealth warplane for the microwave radar usually have complicated structures with the coating of wave absorption. On the base of calculation and modeling of the geometrical structure of the warplane in real size, the HF RCS of the air crafts under two different polarizations in different direction have been calculated with the FDTD. The result shows that the above mentioned stealth warplane have the obvious characterstics of frequency resonance, polarization and the relatively large RCS in HF Band 10-30dBm2, which can be used as the theoretical reference for selection of working frequency for sky wave OTH Radar and it also means that the sky wave OTH radar has good capability of anti-stealth targets quantitatively.
对微波雷达具有隐身作用的飞机,其形体较为复杂且表面涂敷有强吸波材料在对一种具有隐身几何外形结构实际尺寸飞机进行计算建模的基础上,文中采用FDTD技术得到了两种极化状态下该飞机无涂敷时不同方向上的短波雷达截面RCS值其结果显示了这种隐身几何外形飞机在短波波段有明显的频率谐振特性、极化特性和较大的RCS10-30dBm2,可为天波超视距雷达在选择工作频率时提供理论参考,并定量地说明天波超视距雷达具有较优的反隐身目标能力
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In this thesis, we introduce XML relevant technology and database swapper at first, continue chapter four, chapter five provides display on WEB of XML technology and switch technology of XML to HTML, and then chapter six provides XML application embodiment in the database --The bus inquires about the system online.
在这篇论文中,我们首先介绍XML相关技术与数据库交换技术,接着第四章,第五章给出了XML技术在WEB上的显示及XML到HTML的转换技术,紧接着第六章给出XML在数据库上的应用实例-公交车在线查询系统。
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The paradox in this article just means that the conclusion drawn from certain theorem of deontic logic does not accord with people's direct or common sense or habitual understanding, not means what we generally called, which would lead to contradictions in logical system.
文中所说的&悖论&,只是指由道义逻辑中的某个定理推出的结论,与人们在直观上或常识上或习惯上的理解是不相符的,也不是通常说的那种会导致逻辑系统产生矛盾的悖论。
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In this report, half-esterification between these pendent hydroxyl groups of hydroxyl-PU and maleic anhydride could lead to new pendent groups, carboxylic groups. These highly polar carboxylic groups in the side chain of PU could play the role of internal emulsifier. They had self-dissociation ability in the water or were neutralized first by appropriate amount of base. Then, PU bearing carboxylic group could dispersed steadily in the water, named aqueous-based polyurethane dispersion.
在本论文中,利用原来亲油性Hydroxyl PU主链段上悬挂的羟基经由与琥珀酸酐的半酯化(Half-esterification Reaction)反应后,使PU在侧链上悬挂具有强极性的羧酸基,其可作为聚胺酯分子中的内乳化剂,羧酸基能在水相中自身解离产生离子或加入适量碱使之中合,使聚氨酯高分子能够稳定分散於水中,即所谓水性PU分散液(Aqueous-based Polyurethane Dispersion)。
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In this study, we have analyzed all kinds of lithologic geophysical signatures in the area where the beach bar sandstones developed in Es4 in Boxing Sag, and analyzed the seismic reflection features of different lithologies and their combinations using an inversion model combined with actual well results.
文中在分析博兴洼陷沙四段滩坝砂岩发育区各种岩性地球物理特征的基础上,从正演模型入手,结合实际验证,分析了不同岩性及其组合的地震反射特征,找出了研究区砂体组合反射在地震波形结构、极大值两侧面积比等地震属性上的表现形式,总结了薄互层及其组合模式与地震反射各属性的对应关系,以此进行地震属性预测,取得良好效果,在东营凹陷西部沙四段滩坝砂岩储层的勘探中较准确地预测出储层的发育带。
- 推荐网络例句
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The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.
主要做了如下几个方面的工作:对伸臂位于顶部的单层框架—筒体模型进行分析,提出了等效转动约束的概念和转动约束刚度的表达式。
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Male cats normally do not need aftercare with the exception of the night after the anesthetic.
男猫通常不需要善后除了晚上的麻醉。
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Its advantage is that it can be used in smaller units.
其优点在于可以在较小的单位中应用。