向性
- 与 向性 相关的网络例句 [注:此内容来源于网络,仅供参考]
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As special cases,some existence results of solutions to implicit vector variational inequality are presented.
作为特殊情况,给出了隐式向量变分不等式解的存在性结论。
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Bone marrow-derived cells are recruited to sites of ischemia, where they promote tissue vascularization.
骨髓源性细胞向缺血部位募集可促进组织中新生血管的形成。
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As compared to the existing schemes,the new scheme provides both forward security and public verifiability.
与已有的方案相比,该方案同时具有前向安全性和公开验证性;并且新方案更适于应用。
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The analysis result shows that this scheme not only has the properties of the common signcryption scheme,but also satisfies the public verifiability and forward security.
分析结果表明,该方案除了满足一般签密方案的安全性外,还满足公开验证性和前向安全性。
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But signcryption schemes cannot provide forward secrecy and public verifiability as the traditional method does.
然而签密方案不能像传统方法那样同时提供前向安全性和可公开验证性。
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And a child was hardly likely to go to a virginal nun to report sexual activity.
而且孩子不大可能向身为处女的修女告发性活动。
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The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.
塔河油田奥陶系碳酸盐岩油藏的地质研究表明,其储层中发育着很多大型的溶蚀洞、缝,储层的平面展布呈现出极度的非均质性,形成了典型的缝洞型碳酸盐岩油藏,根据各种孔隙介质在储层中的组合,将储层分为了溶洞型、裂缝-溶洞型和裂缝型三类;研究表明溶洞储层的发育和构造位置、裂缝的发育、潜水面和风化面的位置等因素有关;多期充注的油气成藏模式导致了流体复杂的赋存状态,由此提出了所谓的"瓶子模型",解释生产过程中油水界面的变化;特殊的储集空间类型和流体分布特征导致油田在开发过程中表现出很大的不确定性和含水变化的复杂性,为了合理的解释油气田开发过程中的动态特征,提出了"缝洞单元"的概念,并制定了"缝洞单元"纵横向划分的基本原则和依据及划分方法,并对"缝洞单元"进行了分类和评价;基于地质特征和流体在其中流动规律的研究,提出了缝洞型碳酸盐岩油藏的数值模拟综合解决方案,通过模拟单元的选择、流动类型和参数的等效,建立了三重介质油藏三维三相数值模拟模型,采用不完全LU分解预处理共轭梯度法进行了求解;在塔河油田4区精细油藏描述的基础上,将各种类型的孔隙空间进行了归类组合,建立了S48单元的地质模型;通过对油井生产动态进行分析研究,建立了两类和油井地质、生产动态相对应的单井模型;最后应用三重介质油藏数值模拟软件对单井模型和S48单元进行了数值模拟,通过局部加密和粗化等技术模拟流体流动规律,取得了很好的拟合效果;结合数值模拟结果,分析了各种介质中的储量分布、储量产出的百分比以及地层的能量,认为塔河油田缝洞型油藏中流体绝大多数储集于缝洞系统之中,所产出流体90%以上也来自于缝洞系统,其底水能量属于较充足的类型;模拟结果和油田实际情况符合较好,说明了地质研究和油藏数值模拟研究的正确性。
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ABSTRACT Fruit ripening is associated with a number of physiological and biochemical changes including degradation of chlorophyll, carotenoid biosynthesis, synthesis of flavor compounds, conversion of starch to sugars, cell wall solublisation and fruit softening.
果实的发育成熟涉及一系列复杂的生理生化变化,包括叶绿素的降解、类胡萝卜素的合成、淀粉向糖的转化、芳香性化合物的合成、细胞壁溶解和果实软化等。
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Then the weak formulation of the control equations considering the contact constraint conditions has been developed. Combined the Lagrange multiplier and penalty function methods, the augmented Lagrangian method is used to treat the contact constraint and solved the non-linear and non-smooth problems of the mechanical response perfectly. A finite element model has been applied for the test project of the reinforced slope and to study the mechanism of the interaction of the soil and reinforced material.
本文在Lagrangian网格的控制方程中引入接触界面条件,并采用了经典的Coulomb摩擦模型作为界面切向面力的本构模型,继而发展了考虑接触约束条件的控制方程的弱形式;在求解方法上,综合了Lagrange乘子法与罚方法的优点,采用增广的Lagrangian方法处理接触界面约束,很好地解决了接触问题中的高度非线性和响应不平滑性。
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The fourth, directed against the concrete conditions of three metropolises in our country in the present stage, we propose: [1] Recommend the sports view of quality": In the idea , we should change "strengthen health opinion" to "strengthen health-promote qualityopinion; [2] Pay attention to the transformation of the need motive: From the start with meeting the participant's inside motive and need, adopting different methods to the person of different demand levels, making the outside regulating activities which influence people to participate in the sports activities turn into the inside motive; [3] Upgrade the idea of sports of the school: According to the development in era, the existing sports ideas should be changed, and be carried on overall, systematic coordinated reform; [4] Orient the value of worker's sports again: Worker's sports is the investment of the social manpower capital, it is the main part of the corporate culture and enterprising spirit, it is not merely the worker's welfare , it is the welfare of the enterprise; [5] The society which develops masses' sports collects a group of quality : Interdynamic mass's sports is one of the important reasons why people insist on doing exercises.
第四,针对现阶段我国三大都市的具体情况,我们提出:(1)提倡"素质"体育观:在观念认识上,要把现行的"强身观"向"强身一提升素质"体育观念转变;(2)注重需要动机的转换:从适应参与者的内部动机和需要入手,对不同需求层次的人采用不同的方式方法,使影响人们参与体育活动的外部调节转化为内部动机;(3)更新学校体育的观念:根据时代的发展,改变现有的体育观念,进行全面的、系统的配套改革:(4)重新定位职工体育的价值:职工体育是社会人力资本的投资,是企业文化和企业精神的主要组成部分,它不仅是职工的福利,更是企业的福利;(5)开发群众体育的社会集群性:群体互动是人们坚持锻炼的重要原因之一。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。