对称部分的
- 与 对称部分的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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First, theoretical analysis methods were used for the static analysis of the suspension bridge. The formulas for endogen force of the asymmetry suspension bridge through elastic theory were deduced and they were contrasted with those of the normal suspension bridge. The basic differential equation of deflection theory was deduced and the method of getting the roots of the equation was offered, and some simplified methods for deflection theory were presented.
推导了非对称式悬索桥弹性理论的内力计算公式,并对比了其与对称式悬索桥弹性理论的内力计算公式的异同;推导了非对称式悬索桥挠度理论的基本微分方程,并且给出了部分均布荷载作用下基本微分方程的试算方法;提出了挠度理论的几种简化计算方法。
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In this thesis the process of constructing the non-perturbative Hamiltonian theory is de-scribed and is applied to estimate the vacuum condensate. It contains the following contents:At the very beginning, by using the path integral method and eliminating the gluon freedom, aGCM action 〓 of current quarks including lower order current-current coupling was derivedfrom the QCD Lagrangian and the effective Hamiltonian operator that could hardly be doneby the normal methods was derived. After doing this, the broken vacuum is introduced whichincludes quark-antiquark condensate through the generalized Bogoliubov-Valatin transformation,the effective Hamiltonian of constituent quark was derived. The detailed formulas containingthe spatial current-current coupling term for the effective Hamiltonian and gap equations wasworked out by parameterizing the correlation kernel as a quadratic potential. And then, the gapequation was solved and the quark-antiquark condensate of vacuum was studied both in the casesof instantaneous interaction and retarded interaction. In the end, the effective Hamiltionian withtwo-body quark-quark interaction was derived with one-body approximation, and with the helpof the functional integral method the coupling non-linear dynamic equations for systems withnuclear matter was derived. Finally, these equations were solved by selfconsistent method andthe effect of nuclear matter on vacuum condensate was studied. The spatial current-current coupling term is too difficult to handle, hence the correlationkernel is assumed to be not important and usually omitted in the pure vacuum condensate, andthe instantaneous interaction generally is adopted. Retaining the spatial current-current termand partial retardation effect, the quark pairs condensate in pure vacuum was studied, and theeffect of quark mass was also studied. At present, little study is focused in the case with nuclearmatter and spatial current-current term also omitted. Under the approximation with partialspatial current-current term, the effect of nuclear matter on vacuum condensate was studied.
本论文描述了量子色动力学整体色对称模型哈密顿量方法的构建过程,得到了反映正反夸克对凝聚真空结构的关于组分夸克的有效哈密顿量算符,它隐含了胶子作用,并且准确至流-流耦合项;接着,通过参数化哈密顿量中的夸克作用关联核,导出平方禁闭势参数化选择的哈密顿量的具体公式和能隙方程;随后,应用公式,编程求解,考察了瞬时作用下和部分延迟作用下真空的正反夸克对凝聚,在计算中保留了空间流-流耦合作用;之后,导出瞬时势和延迟势下包含二体作用项的哈密顿量公式,并采用单体化近似,通过泛函变分方法得到核物质存在时耦合的非线性动力学方程;在保留部分空间双流耦合作用的近似下,求解核物质的动力学方程,考察核物质密度对真空凝聚的影响,以往考察真空凝聚,对关联核的选用,由于空间流-流耦合项不易处理,也认为作用不大,常忽略该项,并且常采用瞬时作用;本文保留空间双流项和部分延迟作用,考察了真空情形的夸克对凝聚,还考察了夸克质量对纯真空凝聚的影响,以往对核物质存在情形的真空凝聚考察很少,也都忽略空间流-流项,本文在考虑部分空间流-流项近似下,考察了核物质存在对真空凝聚的影响。
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Mandibular segmental defect or asymmetry due to congenital or acquired factors will lead to severe functional incapacitation and facial deformity .
由于先天或后天的一些因素,导致下颌骨部分缺损或不对称,而这种缺损或不对称常常导致严重的功能丧失和颜面畸形。
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Radially symmetrical, so that a line drawn through the middle of the structure along any plane will produce a mirror image on either side.
辐射对称 Actinomorphous 辐射状对称,通过结构中央的任一平面都能将其分成互为镜像的两部分。
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Bilaterally symmetrical, so that a line drawn through the middle of the structure along only one plane will produce a mirror image on either side.
左右对称的 Zygomorphous 两侧对称,仅在,通过结构中央仅有一个平面能将其分成互为镜像的两部分。
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This paper mainly discusses a kind of indefinite stochastic linear quadratic optimal control problem with incomplete data, which can be described as: Minimize subject to Here Q, F are indefinite symmetric matrices,R is a positive semidefinite symmetric matrix.
本文主要讨论的是一类部分信息下的不定随机LQ问题,其形式如下:这里Q,F为不定对称矩阵,R为非负对称矩阵。
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Under the direct current electric field, the expression of PDGFR were increased obviously and distributed asymmetricly on the membrane of VSMC. This receptor were mainly focused on the cathodal side of cellular membrane in electric field. The AT1R were also enhanced in the cells after exposure to the electric field, and the expression of AT2R had showed the changeless.
改进的电场干预装置作用下,血管平滑肌细胞膜血小板源生长因子受体表达增加,部分细胞内血小板源生长因子受体表达上调,呈不对称分布,在电场负极面较集中;细胞中血管紧张素Ⅱ1型受体表达亦增加,但无明显不对称分布现象;血管紧张素Ⅱ2型受体表达改变不显著。
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The first part of this dissertation described a new effective method for asymmetric synthesis of,α,α-disubstituted amino acids from the asymmetric Strecker reaction products of aldehydes.
在本论文的第一部分,我们开发了一条以醛为原料,以不对称Strecker反应和不对称烷基化为关键步骤的合成α,α双取代氨基酸的有效方法,并对其立体选择性结果进行了机理探讨。
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In part two, the empirical results indicate that the predictive ability of SGT is much better than GT、ST、t and Normal distribution. SGT can correct not only fat-tailed property, but also defects the low kurtosis of GT and t distribution. For the volatility of asset return setting, the assumption of volatility of assets price is more appropriate than Normal and asymmetric distribution which was often used.
第二部分以实证结果显示偏态一般化t分配的配适能力较一般化t分配、偏态t分配、对称t分配和常态分配为佳,亦即当金融资产报酬率存在高峰态与厚尾现象时,偏态一般化t分配不仅可以解决常态分配所无法捕捉到的厚尾现象,亦可修正一般化t分配与对称t分配无偏态的缺点,对於资产报酬率波动性之设定,比过去常使用的常态分配与对称的分配更为适当。
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The first part discusses the affection of bounded rationality on rational foundation of the theory.The second part introduces the idea and framework of this theory,and the general 2*Mperson symmetric game and hawk*Mdove game and used as examples.The third part surveys the theory and practice value of evolutionary game theory,and discusses its prosperity of developement.
文章第一部分讨论了有限理性对博弈论理性基础的影响;第二部分介绍了进化博弈论的思想和分析框架,并以一般两人对称博弈和鹰鸽博弈为例作了具体讨论;第三部分对进化博弈论的理论和应用价值,以及进化博弈论的发展前景作了总结和讨论。
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。