对称地
- 与 对称地 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 symmetry of the planetary relief is broken in the western Pacific where the geoid surface is uplifted.
在西太平洋中,星球地势起伏的对称受到破坏,那里的地球体表面受到抬升。
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It has long and narrow asymmetric graben structure.
它具有狭长不对称的地堑结构,断裂构造复杂,发育有正滑动断裂和逆滑动断裂。
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The structures and stabilities of the ground-states for Cu13-nAgn clusters have been studied by Gupta model potential based on tight binding second moment approximation in combination with a genetic algorithm. It is found that the lowest energy structures of the pure clusters (n=0,13) are perfect icosahedron, and the structures for the bimetallic clusters (n=1~10) have stable structure which are slightly deformed with respect to the perfect icosahedron, The Cu atom prefers to occupy the center of the clusters with higher coordination numbers.
在混合团簇基态结构优化的遗传算法方案中增加了交换算子,结合Gupta紧束缚模型势研究了Cu13-nAgn团簇的最低能量结构,选择合适的交换和杂交概率,可有效地提高优化效率,优化结果表明,Cu13和Ag13是全对称的二十面体,n=1~10的混合团簇能形成稳定结构,其构型是在二十面体基础上发生畸变,Cu原子趋于处在团簇中心,随着Ag原子数目的增加,原子间的平均距离单调增加,团簇的结合能单调减小,Cu2Ag12和CuAg12只存在亚稳结构。
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Thermal reaction of Ru312 with unsymmetrical Fv ligand 2-(tert-butylcyclopentadienyl)-indene provided [5:5-(tBuC5H3)(C9H6)]Ru24 (2) in good yield.
羰基钌与不对称的二氢富瓦烯配体2--茚在加热条件下反应高产率地生成化合物 [5:5-(tBuC5H3)(C9H6)]Ru24 (2)。
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Finally, it analyses the time complexity of the algorithm and researches how it is influenced by culture operator.3、The paper presents the evaluation standard of the GA's application capability. Basing on characters such as continuity, multi-peak, vibration, randomicity as well as large-scale, five functions are selected to test search ability and robustcity of co-evolution algorithm. Finally, it analyses the simulation result and researches the influence of algorithm brought by culture operators.4、Basing on the concept of collection overcast, it researches the task distribution issue and constitutes delaminated math model on task distribution issue. It puts out the co-evolution algorithm of subtask's decomposing. The experiment compare IGA、SGA to CN and validates the efficiency of co-evolution algorithm on the NP completeness issue.5、Being aim at the optimization issue of load of antenna near ground, it combines many GA strategies and puts forward strategic meme. And it puts out co-evolution algorithm of load of antenna design. And it emulates the optimization design of load of antenna near ground. Finally, it valuates the co-evolution algorithm's efficiency on the continuum search issues of multi-variable and multi-peak value.6、Being aiming at the knowledge of image model matching, it adopts single meme and real code. It puts out fast co-evolution matching algorithm strategy. Basing on NPROD resemble measurement, I emulate the indiscrimination model matching and discrimination model matching. Finally, it valuates the co-evolution algorithm's efficiency on the real code and real time search issue.
分析了算法的时间复杂度,研究了文化算子对算法时间复杂度的影响。3、提出了GA的应用性能评价标准,从连续性、多峰性、随机性、振荡性、广域性多个角度出发选择五个测试函数,对共同进化算法的搜索性能和鲁棒性作了函数优化的性能测试,分析了仿真结果,研究了文化算子对算法的影响。4、基于集覆盖的概念,研究了MAS中的任务分配问题,建立了任务分配问题的分层数学模型,给出了子任务分解共同进化算法,实验比较了IGA、SGA、CN,验证了共同进化算法对NP完全问题的有效性。5、针对近地天线加载优化设计问题,结合多种改进GA策略,提出了策略型拟子,给出天线加载设计的共同进化算法,对有耗半空间对称偶极子天线加载优化设计作了仿真实验,验证了共同进化算法对多变量多峰连续搜索问题上的有效性。6、针对图像模板匹配问题的领域知识,采用单类拟子和实数编码,给出快速共同进化匹配算法策略,基于NPROD相似度测度,仿真试验了无差别和有差别模板匹配,验证了共同进化算法对实数编码和实时性搜索问题上的有效性。
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Theorem 2 Let M~n be a compact totally real minimal submanifold in M~n which is a locally symmetric Bochner-Kaehler manifold.If the infimum of sectional curvature R_c in M~n satisfies: then M~n must be totally geodesic in M~n.
定理2 M~n是局部对称Bochner-Kaehler流形M~n中紧致全实极小子流形,如果M~n截面曲率下确界R_c满足:则M~n必是全测地的。
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The hexapod stiffness, which is moveable platform stiffness relative to fixed base frame, generally, is a non-symmetric matrix. It can map the infinitesimal increments in the displacement and in the applied forces , representing the characteristics of forces/displacements in incremental form and relating to machine head displacements when subjects to externally applied force system. It is no doubt that the displacements will affect machine accuracy, especially with the tool under changeable load system.
六杆机构加工中心的刚度意味着输出端移动平台相对于固定基础平台的刚度,一般地,它是一个非对称的刚度矩阵,它将位移微小增量转换成微小力增量,表现了增量形式的力/位特征,关系到机床加工头受有外载荷系统时的位移,直接影响到加工精度,特别是变载荷系统下的加工精度。
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The world is asymmetrically interdependently articulated into the global networks.
世界是不对称,相互依赖地接合在全球纲络中。
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In this paper, we improve the EWMA Futures Margin based on normal distribution assumption and propose a new model of futures margin based on skewed EWMA estimator which based on the asymmetric laplace distribution that is sound to capture leptokurtosis and fat-tail.
本文是对建立在正态分布假设的EWMA期货保证金模型的改进。文中引入基于非对称Laplace分布发展起来的有偏型EWMA方法,建立了新的期货交易保证金模型,较好地反映了期货合约价格序列有偏、厚尾的现象。
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In the process of investigation on the torsional effect of quartz crystal, mirror symmetric conservative law is applied to ascertain the connection between the physical characteristics of leftwards spiral crystals and rightwards spiral crystals.
面对工程界对左旋石英晶体压电性质的描述不统一的现状,从晶体螺旋对称的本质出发,应用宇称不变性明确地建立了左、右旋晶体这两种客观实在物质的物理性质之间的联系,给出了建立这种联系的方法,并应用到了左旋石英晶体的三阶压电张量和四阶弹性张量的确定中。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?