有环的

About the semiprime Noetherian rings and left FBN rings, we obtainTheorem 1.2.6 Let R be a semiprime Noetherian ring in which every prime ideal has the left AR property.

关于半素Noetherian环和左FBN环的测试集我们有定理1.2.6：设R是半素Noetherian环且每个素理想都有AR性质，设S={P∈S：P是R的素左理想且当P是一个双边理想时，R_P不是一个除环。则S是一个内射测试集。

Finally, the condition examining and schema decomposition algorithm are given.Fourthly, The definitions of elementary merge dependency set and minimum elementary merge dependency set are put forward. The weak leftside conflict and weak rightside conflict in the minimum elementary merge dependency set are defined. The conclusion that when the minimum elementary merge dependency set has weak left side conflicts or weak right side conflict is reached, The decomposition meeting PEK isα-cyclic is given. The algorithms of calculating the minimum elementary merge dependency set and examining the conflicts are given.

给出了条件的判定算法和数据库模式的分解算法。4、提出初等归并依赖集和初等最小归并依赖集的概念，定义初等最小规并依赖集的弱左部冲突和弱右部冲突，讨论了初等最小归并依赖集下的冲突问题，给出了在FD集F其初等最小归并依赖集D中存在弱左，右部冲突时模式分解为满足PEK为有α环的结论，并给出了初等最小归并依赖集的求解方法，冲突的判定算法。

In this thesis, we shall study the isomorphism property of chordal ring networks and we shall find out the diameter of some directed chordal ring networks and the diameter of some mixed chordal ring networks.

在这篇论文里，我们首先推导「有向的弦环式网路」以及「混合的弦环式网路」的同构性质；我们接著得出某些特殊的「有向的弦环式网路」以及「混合的弦环式网路」的直径，与之前文献不同的是，我们并不需要先计算出对应的「双环式网路」的直径来得出这些直径。

Comparative study of the properties of both ground and excited states of metal-free indoline dyes for dyesensitized solar cells revealed: as the number of rhodanine rings increases, the energy difference between HOMO and LUMO decreases and there is a red shift in the absorption spectrum with the binding energy increased, and the transition dipole moment decreased; Based on an analysis of cha...

对比研究吲哚染料的基态和激发态性质，揭示了随着绕丹宁环数目的增加，HOMO和LUMO的能量差减少，吸收光谱红移，但是束缚能增加，跃迁偶极矩减少；依据电荷差分密度，电荷和能量从苯乙烯转移到吲哚环和绕丹宁；电子空穴相干性主要表现在吲哚环和绕丹宁环，对于吲哚染料系统，存在一个绕丹宁环的体系的激子数目为30个原子，带有两个绕丹宁环的体系激子数目有40个原子。

Research on the Iridoids composition of Valeriana jatamansi Jones in the role of mechanism of action of rat model induced by chronic stress3.1 Effection of Iridoids composition of Valeriana jatamansi Jones on 5-HT and 5-HIAA in colon,serum and central of IBS rats induced by chronic stressMethods:Animals were randomly divided into7 groups:normal group,model group, OSD group,FXT group and Iridoids composition of Valeriana jatamansi Jones groups in quantiy of 24.92mg/kg,12.46mg/kg,6.23mg/kg.

同时，蜘蛛香环烯醚萜可显著降低醋酸所致小鼠的扭体次数，说明其有良好的镇痛作用。3蜘蛛香环烯醚萜治疗肠易激综合征机理3.1蜘蛛香环烯醚萜对5-HT神经递质的影响3.1.1蜘蛛香环烯醚萜对外周和中枢5-HT含量的影响目的：探讨蜘蛛香环烯醚萜对慢性应激所致IBS大鼠结肠、血清和脑中5HT、5-HIAA的影响方法：动物随机分为对照组、模型组、昂丹司琼组、氟西汀组、蜘蛛香环烯醚萜24.92mg/kg、12.46mg/kg、6.23mg/kg组，除对照组外，其余各组进行慢性应激实验。

Research on the Iridoids composition of Valeriana jatamansi Jones in the role of mechanism of action of rat model induced by chronic stress3.1 Effection of Iridoids composition of Valeriana jatamansi Jones on 5-HT and 5-HIAA in colon,serum and central of IBS rats induced by chronic stressMethods:Animals were randomly divided into7 groups:normal group,model group, OSD group,FXT group and Iridoids composition of Valeriana jatamansi Jones groups in quantiy of 24.92mg/kg,12.46mg/kg,6.23mg/kg.

同时，蜘蛛香环烯醚萜可显著降低醋酸所致小鼠的扭体次数，说明其有良好的镇痛作用。3蜘蛛香环烯醚萜治疗肠易激综合征机理3.1蜘蛛香环烯醚萜对5-HT神经递质的影响3.1.1蜘蛛香环(来源：5bABd5C论文网www.abclunwen.com)烯醚萜对外周和中枢5-HT含量的影响目的：探讨蜘蛛香环烯醚萜对慢性应激所致IBS大鼠结肠、血清和脑中5HT、5-HIAA的影响方法：动物随机分为对照组、模型组、昂丹司琼组、氟西汀组、蜘蛛香环烯醚萜24.92mg/kg、12.46mg/kg、6.23mg/kg组，除对照组外，其余各组进行慢性应激实验。

It is widely employed in many industrial domains. The most attractive domain of ring rolling technology is to roll the rings with specially-shaped cross section directly. But the rolling deformation law of ring with specially-shaped cross section is more complicated compared with rectangle section ring and in the process there are lots of special phenomenon such as underfilling, shrinking-drawing, concave, saucer shape and etc.

环件轧制技术最有吸引力的领域和发展方向是直接轧制成形截面轮廓复杂的异形截面环件，然而，与矩形截面环件相比，异形截面环件轧制成形规律更复杂，轧制过程中常常出现截面轮廓充不满、拉缩、凹坑、碟形等各种特有现象，这些现象是异形截面环件轧制成形规律的客观反映。

Ring expansion reactions are important tools in organic synthesis which take advantage of existing ring structures and avoid the unfavorable factors associated with other approaches in the construction of medium and large rings.

自由基成环和扩环反应是有机化学中的重要反应，它可以利用已有环的结构来构筑所需要的中环和大环，避免其他一些不利的竞争反应。

An auxiliary power motor with improved structure includes wheel shell, rotor ring, stator plate, central wheel axle and control circuit.

一种改良结构的辅助动力马达，包括轮壳、转子环、定子盘、中心轮轴及一控制电路，转子环的内环面埋设磁铁，定子盘周围固设环形矽钢片，其外环面具有多个T形齿牙，其齿数为非转子环磁铁数的公倍数，矽钢片设有三相星形线圈绕组，且于定子盘电机最佳启动角度处设有霍耳元件组；借此将定子盘固设于中心轮轴，令轮壳夹设住转子环并套设于中心轮轴两侧，当转子环旋转时，即可降低磁极间的钝齿转矩，令电动车行进更加顺畅无噪音。

Wyoming's Lonesome Lake captures a crystal clear likeness of Cirque of the Towers, a circular mountain-ringed basin in the Wind River Range.

怀俄明州的寂寞湖获得一个完全透明清晰的相似的塔的圆环，一个圆形山脉—有环的盆地在风河山脉。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐