查询词典 two body problem
- 与 two body problem 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The Kyrgyzstan ethnic problems mainly consists two parts: transnational nationality problems (including Russian problem, Uzbek problem, Dong Gan problem) and tribalism and sectionalism.
吉尔吉斯斯坦主要民族问题有跨界民族问题(其中包括俄罗斯人问题、乌兹别克人问题、东干人问题等方面);部族主义与地方主义问题两个方面。
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The problem has been studied from two sides, firstly, from the viewpoint of applicability, based on the development strategic objectives of the oil company, with the aim to unify the exploration and extraction decisions of the resources in an integrated framework, and integrate the macro economic and technical objectives with micro economic and technical models of an oil well, an integrated non-linear dynamic optimal control model has been constructed, the objective is the benefit maximum of the exploration and extraction of the resources, and the optimalstrategies are obtained by changing the problem into a non-linear mathematical programming problem, on the other hand, from the more macro level, based on the analysis of the characteristics of the exploration and extraction activities of oil and gas resources, a conclusion is easily deduced that the procedure is full of randomicity, then discovering procedure of oil deposit is proved to be a Poisson process, and the reserves process is a supermartingale process, so the model of exploration discovery rate and the reserves model could be constructed.
其次从相对更宏观的层次上,通过对油气资源勘探与开发的特点分析,认为具有很强的随机性,证明了勘探活动发现油气藏的过程为一泊松过程,所发现的油气藏储量为一上鞅过程,在此基础上,建立了油气藏勘探发现率模型及储量模型,在油气价格服从几何布朗运动条件下,以油气开采收益最大化为目标,建立了一个油气资源勘探与开发的随机最优控制模型,采用动态规划方法得到了值函数的HJB方程,并针对方程的特点,以及方程及其变量所对应的经济学意义,对最优策略的求解进行了一些讨论。
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For the characteristic of transportation problem, it was an integer programming problem naturally. By introducing a new algorithm, a transportation problem which includes interval number variables can be converted into two ordinary linear programming problems. It's a more efficient method, and a simple result can be gained.
本文考虑了带有区间数参数的运输规划问题,通过引入新的算法将原问题转换为两个普通的线性规划问题,使用新的算法计算简洁,效率高,得到的结果更直观,改变了以往只能以区间数表示结果的方式。
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In use process, two layer adhesive bonding material can overlap put, not only effectively resolve the traditional process cannot solve fold fabric off-line edge fabrics, avoid the problem with complicated side whipstitch or edge to solve the problem of annoyance, but also can solve such a big and heavy seam, avoid the problem of fabrics, enhanced comfort.
在使用粘合工艺时,两层面料可以重叠摆放粘合,不仅有效地解决了传统工艺中面料叠放却无法解决面料边缘脱线的问题,避免了以烦琐的锁边或包边来解决问题的烦恼,而且还可以解决缝份过大、沉重等问题,避免了面料上下的不和谐,增强了贴体服装的舒适度。
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In chapter Ⅰ, a historial review of structure control is given; In chapter Ⅱ, A discussion of the controllability and observablity of flexible structures is given, Two kinds of controllability and observablity index are defined, and applied to actuator allocation; chapter Ⅲ considers the reduction of high order flexible structure mode; the content of chapter Ⅳ is about the basic problem of distributed parameter control system design. It is proved that a stable controllor in mode space may be unstable in real use in distributed paramater systems, also, by closed loop mode concept, a pole assignment method of flexible structure controllor design is given; chapter Ⅴ is about the low-authority controllor design, it is pointed out by use of high order eigenvalue/eigenvector perturbation, a better controllor can be designed; chapter Ⅳ considers flexible structure reduced order control; chapter Ⅶ disscusses the basic problem of flexible structure computer control, analyses discreate controllablity and observablity and its computing, the sample period and coefficient wordlength; chapter Ⅷ is on the problem of low flexibility compensation; chapter Ⅸ is a design example.
在第一章简要回顾了挠性结构控制的历史,并且指出控制中的一些问题;第二章讨论了挠性结构的能控性与能观性,定义了两类能控性程度和能观性程度指标,还将能控性程度概念应用于执行器位置的确定;第三章论述了高阶模型的降价问题,比较了适于挠性结构模型降阶的方法,指出其适用范围;第四章内容是分布参数系统设计的基本问题,首先证明在模态空间中设计的稳定的控制器在实际分布系统上可能是不稳定的,进而根据闭环模态的概念,获得挠性结构控制器设计的极点配置方法;第五章的内容是关于低权控制器的设计问题,指出利用特征值高价摄动和特征向量的摄动,可以设计出更加完善的低权控制器;第六章讨论挠性结构降阶控制问题;第七章讨论挠性结构计算机控制的基本问题,分析了时间离散化模型的能控性和能观性及其计算问题,讨论了采样周期选择和系数字长问题;第八章讨论低挠性结构的补偿问题;第九章的设计例子用来说明第二章和第四章的结果。
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The gap element method is proposed in the paper for two kinds of problems, which include contact problem and gap joint problem. Elasticity contact problem falls into the category of unknown boundary value problems. It follows that the contact area and contact conditions or states can never be determined without special mathematical analysis, which is a very difficult work. The boundary conditions of the contact surfaces are deduced.
文中给出了间隙元法在空间可动部件接触问题中的应用,推导了其几何边界条件和力学边界条件,利用虚功原理推导了含间隙元弹性接触问题的有限元方程式,给出了其数值解法的迭代步骤,并指出了利用间隙单元进行分析的特点。
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The tactics kant settled the dispute isthe way of two — divided, it contains the distinction of two sorts ofpropositions, the distinction of two implications that subject term concerns, the distinction of two principles, the distinction of two characters of subject and the distinction of two propositions of antithetic.
其中包含两类命题的区分、主词的两种含义的区分、两类原则的区分,以及主体的两种性格的区分和两类背反命题的区分。
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In this paper, the conventional isopiestic technique have been modified and extended to multicomponent unsaturated mixed solvent solutions, each containing two or three volatile solvents and two unsaturated solutes, and multicomponent saturated aqueous solutions, each containing two unsaturated solutes and one or two saturated solutes. Isopiestic measurements have been conducted systematically for the first time for two mixed solvent electrolyte solutions, two quaternary saturated aqueous solutions and three quinary saturated aqueous solutions and the experimental results have been compared with the ideal-like solution model.
本文将传统的等压技术,经过改进后,进一步应用于含有两种或三种挥发性溶剂和两种非饱和溶质的多元混合溶剂溶液以及含有一种或两种饱和溶质和两种非饱和溶质的多元饱和水溶液,首次系统地测定了两例混合溶剂电解质溶液、两例四元饱和水溶液和三例五元饱和水溶液的等压平衡,并将实验结果与类理想溶液模型进行了比较。
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The results showed:among the 7 isolates, five isolates of HY3、GY1-3、ZJ1-1、HP1、FC3 had same colony shape, irregular shape, liquidlike, slimy, opacity with smooth surface;the other two isolates had same shape, irregular shape, dry, opacity with coarse surface. By inoculating eucalyptus with the 7 isolates, the plants were infected apparently, and the young plants of eucalyptus in control experiment with tap water were not infected. By cultivating eucalyptus cuttings with the bacterial suspensions without EPS, the incidence of disease was very distinct,but compared with the former bacteria suspension,the incidence of disease has decreased at different degrees. By screening out two isolates of strong pathogenicity and two isolates of weak pathogenicity from the 7 isolates,making the bacterial suspensions with them to inoculate the young plants of eucalyptus, two treatments of cutlings and ramets with rats were set with 5 repetitions in every treatment, the results of data analysis showed: for the cutlings, the bacterial contents in upper and middle parts、upper and lower had significant difference;for ramets with roots, the bacterial contents in upper, middle parts, lower had significant difference between each other; For both the cutlings and ramets with roof, the bacterial contents in xylem and phloem had significant difference. The interaction between vertical and horizontal parts for the bacterial content had significant difference. For the two isolates of HY3 and 93B which were screened out at last,their activities of the cellulase were: 1.955ug/ and 1.288ug/ respectively, and had significant difference; the activities of pectase were: 1.325 ug/and 1.24ug/ respectively, and had no significant difference. The content of EPS extracted from the two isolates of HY3 and 93B was very different: 7.08x10-8ug/cell and 5.17x10-8ug/cell.
结果显示:7个菌株中,其中5个菌株HY3、GY1-3、ZJ1-1、HP1、FC3的菌落形态相同:不规则形状、流体、粘性、不透明、表面光滑;另外2个菌株93B、GN1菌落形态相同:不规则形状、干燥、不透明、表面粗糙;用7个菌株接种剪根桉树苗,发病情况非常明显,而自来水对照实验中桉树苗却不发病;无EPS菌悬液培养桉树剪根苗,发病率也很明显,但是相比原菌液,则发病率有不同程度的下降;从7个菌株中间筛选出来2个强致病性菌株和2个弱致病性菌株,用它们配制菌悬液培养桉树苗,设置剪根和不剪根两个处理,每个处理设置五个重复,数据分析结果显示:对于剪根苗,上部和中部、上部和下部的含菌量有显著的差异,中部和下部含菌量差异不显著;带根苗,上部、中部、下部含菌量彼此之间差异显著;不管是剪根苗还是带根苗,木质部和韧皮部含菌量之间的差异都非常显著;上中下与木韧交互作用中,含菌量差异非常显著;最后筛选出来的强弱2个菌株HY3和93B,它们的纤维素酶活性分别为:1.955ug/和1.288ug/,具有显著的差别;果胶酶的活性分别为:1.325 ug/和1.24ug/,没有显著的差别,而且HY3和93B两个菌株细胞分泌的胞外多糖的含量差异很显著,分别为:7.08×10-8ug/cell和5.17×10-8ug/cell。
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Both crystallographically unique Zn atoms exit as an octahedral geometry. The four equatorial positions of Zn1 atom are occupied by the carboxylate-oxygen atoms of the two tartrates, and the two oxygens of the left four carboxylate-oxygen atoms coordinate to two different Zn2 atoms, respectively, forming infinite coordination polymer chains. The left two of the trans equatorial positions of Zn2 atom are completed with two oxygen atoms of two water molecules. The axial positions of both Zn atoms are occupied by the nitrogen atoms from different 4,4'-bipyridine molecules to give a 2D rectangular-grid layers with a cavity dimension of 0.51165(3)nm×1.13896(5) nm. A three dimensional network is formed by the crystallization water chains joined by the carboxylate-oxygen atoms through hydrogen-bonding interactions.
两个晶体学独立的Zn原子均为八面体构型,其中Zn1原子赤道配位点被2个酒石酸根中的4个羧酸根氧螯合配位, 2个酒石酸根中剩下的4个羧酸根氧中的2个分别与2个Zn2原子连接形成无限一维链, Zn2原子的另外2个反式赤道配位点被2个水分子氧占据,同时这两种Zn原子的轴向配位点均被4,4'-联吡啶的氮原子占据,形成具有矩形格子[0.51165(3) nm×1.13896(5) nm]的二维层状结构,游离的2个水分子通过氢键作用形成二聚体,并与酒石酸根中未与Zn配位的羧酸氧连接,把二维层状结构连接成三维网状的超分子结构。
- 相关中文对照歌词
- Problems
- My Body
- You Got A Problem
- Let Em Have It Remix
- Move Ya Body
- Problem
- Body Bumpin' (Yippie-Yi-Yo)
- Problems
- Problem
- Body Count's In The House
- 推荐网络例句
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Don't listen to their haver, nothing of that sort.
别听他们胡说八道,根本就没那回事。
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But bank's shares trade below their book value, suggesting that investors are skeptical.
但是,银行股票以低于账面价值的价格交易,这一点反应了投资者的怀疑。
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It is by this hybridity that teachers are able to reclaim the wholeness of their lives.
正是通过自我的混杂,教师才可能重塑完整的自我认同。