上生成元
- 与 上生成元 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It is shown that two-component Wadati-Konno-Ichikawa equation, i.e. a generalization of the wellknown WKI equation is obtained from the motion of space curves in Euclidean geometry, and it is exactly a system for the graph of the curves when the curve motion is governed by the two-component modified Korteweg-de Vries flow. At the same time, a n-component generalization to the WKI equation is obtained. Also, starting from the motion of curves, mKdV and its symmetry recursion operator is exhibited explicitly; two- and n-component mKdV systems are obtained. It is shown that WKI systems are gauge equivalent to mKdV systems. The two-component WKI equation admits an infinity number of conservation laws and a recursion formula for the conserved densities is given by considering an eigenvalue problem together with introducing an appropriate transformation.
在二维和三维欧氏空间上,我们从空间曲线运动出发,推导出了mKdV方程以及它的用以生成高阶对称的递归算子;推导出了多元mKdV方程以及二元和多元WKI方程,并证明了WKI系统和mKdV系统的规范等价性;尔后,通过考虑特征值问题,并引入一个恰当变换,给出了二元WKI方程的用以计算无穷多守恒密度的递归公式,从而证明了二元WKI方程的守恒可积性;系统地分析了两种mKdV方程的Painleve性质,并分别给出了两种不同形式的二元和n元mKdV方程的共振点出现的规律。
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The results showed that hydrogen peroxide, silanols species and TiO〓 didn't have solvolysis activity of propylene oxide. While framework Al, coordinatively unsaturated Ti〓 ions as Lewis acid sites in the framework, Ti-OH and the five member ring active titanium species formed by TS-1, hydrogen peroxide and solvent can catalyze the solvolysis of propylene oxide.
研究结果表明:原料双氧水和TS-1沸石上的SiOH和TiO〓对环氧丙烷溶剂解反应无催化活性;而下列物种对环氧丙烷溶剂解反应具有催化活性:TS-1中的骨架铝,沸石骨架中配位不饱和的Ti〓形成的L酸中心,TS-1水解产生的钛羟基和由TS-1,双氧水和溶剂相互作用所生成的五元环中间活性钛物种。
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The small clause approach has been adopted by a lot of scholars to analyze the Chinese resultative constructions.
本文认为,对汉语中结果结构的小句分析存在诸多问题,如句法和语义上的过度生成、主语准允的不一致、对论元实现的预测力有限及对歧义的解释力不强等。
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Upon this foundation,a corpus-based algorithm was designed and implemented to acquire and filter binary semantic pattern rules automatically. In the algorithm,a data mining method for cross-level association rules is adopted,which is guided by metarule,to find the semantic laws of word combinations in Chinese phrase corpus. Then statistic results are used to filter the findings. In the end,the remains are transformed into binary semantic pattern rules.
在此基础上,本文设计并实现了基于语料库的二元语义模式规则自动挖掘和优选算法,该算法先采用数据挖掘中元规则制导的交叉层关联规则挖掘方法,自动发现汉语短语熟语料库中词语两两组合的语义规律,再根据统计结果自动优选后转换生成候选二元语义模式规则集。
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At the same time, based on establishment of meta-knowledge space, motion characteristic space and construction rule space, this thesis gives a generalized modeling method of motion behavior and motion function.
同时,在建立运动元知识空间、运动特性空间以及生成规则空间的基础上,实现了运动行为以及运动功能的统一建模。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。