查询词典 external algebra

Keywords: Groebner basis; regular point; two-point algebra; radical square zero algebra; wild algebra

中文关键词： Groebner基；正则点；两点代数；根方零代数；野代数

In this paper, we discuss effect algebra and related topics. The main results are the following:1. Effect algebra is a commutative algebraic structure. To get a non-commutative algebraic structure.we introduced the concepts of left difference and right difference, and we also introduced the concept of the Bi-difference sets, the concept of pseudo-difference poset, and proved that pseudo-difference poset is equivalent to pseudo-effect algebra.

效应代数描述的是具有交换性的量子系统，我们借助于差运算的思想研究了不可交换的量子逻辑结构，建立了左差、右差、伪差偏序集、双差集等概念，证明了伪差偏序集与伪效应代数等价，并得到了双差集的幺半群表示定理。

Software Description: About Personal Algebra Tutor, Enter your problems into this algebra problem solver to view step-by-step solutions and explanationsto basic algebra through pre-calculus problems.

Personal Algebra Tutor 输入你的难题到这款代数题解答器观看分步式答案以及贯穿学习微积分前必修课程的注释说明。

In third part, I discussed R0 algebra in two different aspect:(1) Defined Boole element in R0 algebra. Gave the properties of Boole element and distributive rules of Boole element about finite R0 algebra. Study the filter and the stone filter of L are filters of M.

元的分布规律：研究了民代数M的滤子和民代数M作为有界分配格（记这个有界分配格为L（MO 的滤子之间的关系，得出结论：L的极小素滤子以及 L的 Stone滤子都是 M的滤子，但 L的滤子一般不必是M的滤子。

By extending the VBG external cavity length, and inserting a convex cylindrical lens between external cavity and LDA for transmiting. Phase-locked of external cavity is achieved by tilting of Bragg Grating external cavity. Experiment studied the stability of the in-phase mode far-field output at 35A. Wavelength is locked at 802 nm. The Full-Width Half-Maximum of locked specrum narrowed to 0.2 nm and the corresponding far-field divergence angle is 1.8 mrad.

通过拉长VBG外腔腔长，在VBG外腔和LDA中间插入平凸柱面透镜，采用偏转体布拉格光栅外腔进行外腔锁相研究，在注入电流35A时，获得稳定的同相单瓣模远场输出，波长锁定在802nm，中心主瓣峰值半宽压窄到0.2nm，对应的远场发散角为1.8mrad。

For example, the ratio of external inputs, external output, external inquiry, internal logical file, and external interface file can be compared with other applications meeting similar business needs.

举个例子，外部输入、外部输出、外部查询、部逻辑文件，和外部借口文件的比率是能和其他相近商业目的的应用进行类比。

At the same time,it designed the project of construction supervision and measure aimed at the strengthening bridge by external presttessing,through the contrast between the result in theory and fact,we can see that it is feasible to use predigestion's computing based on elasticity to analyse continuous rigid frame briges reinforced by external presttessing ,and it can ignore the effect of the second stress. So, it can be capable of the analyses in the strengthening bridge by external presttessing using the method of controlling by flexibility and stress to set up the model of scathe,and,the method of external presttessing can ensure stress reserve of the main beam, to reduce effectively PrinciPal tensile stress, to renew line state of bridge structure and gradient. The effect of strengthenment was obvious and the reinforcement scheme was successful.

同时，进行了该桥体外预应力加固监测方案设计，并通过理论计算结果与实际监测成果的比较，验证了在施工阶段及正常使用阶段，大跨连续刚构体系的体外预应力加固计算中忽略二次应力增量的影响，采用弹性分析方法进行简化计算的可行性，进而说明采用双控拟合方法建立的结构损伤模型能够满足体外预应力加固计算的要求，并且体外预应力加固法能够显著增大主梁的应力储备、有效地减少了主拉应力、恢复了桥面线形和坡度，加固效果明显，加固方式成功。

3To introduce a minimally-invasive technique of a new percutanous external spinal fixation assistanted minimally-invasive surgical procedure treating thoralumbar fracture and analyse its clinic applicable area and value. [1]According to advantage of spine external transpedicular fixation technique and limitation of traditional percutanous external transpedicular fixation,design a new percutanous external transpedicular fixation.

(1)根据脊柱外固定技术的优点，传统脊柱外固定器的不足自行研制一套新型脊柱外固定器(WS-1型)；(2)取7具新鲜小牛腰椎标本，自制实验不稳定性骨折模型，把实验分成正常A组、骨折模型B组、新型脊柱外固定器固定C组、新型脊柱外固定器固定联合PVP技术D组，分别按顺序测试四组的三维稳定性，并测试A组、C组与D组在300N轴向压缩实验，再行统计学分析比较；(3)应用新型脊柱外固定器联合椎间盘镜微创椎管减压技术和PVP技术手术治疗胸腰椎骨折，病例选择：本组病例共69例，年龄自10岁-70岁，平均年龄56.3岁。

In the 29 Aroma material studied, the content of the material having important effect such as norambreinolide, octadecanoic lactone(1), octadecanoic lactone(2), octadecanoic, 8,15-labdanum-1-ol,8,12-external oxidative labdanum-14-en-2-ol(1), 8,12-external oxidative labdanum-14-en-2-ol(2), 8,13-external oxidative labdanum-14-en-13-one(1), 8,13-external oxidative labdanum-14-en-13-one(2) Dihydroactinidiolide, solanone, norsolanone have Significant increasing trend in the aging, the peak of the content of material appear in the 18~21 months in the aging process.

在所测定的29种香气物质中，对香料烟特征香气有重要影响的香味物质如降龙涎香内酯、硬尾内酯2种异构体、硬尾醛、8，15－赖百当醇、2种8，13外氧赖百当－14－烯－13醇异构体和2种8，13外氧赖百当－14－烯－13－酮异构体，二氢猕猴桃内酯、茄酮和降茄二酮等成分在陈化过程中有明显的增加，总的香气物质含量变化的高峰期出现在陈化18~21个月。

The mechanism of instability wrinkling in the process based on minimum energy principle is revealed, uniform mathematic description of the wrinkling wave on the strip of in-plane bending is established, the internal and external energy is deduced by energy method, and a uniform criteria of internal and external wrinkling is established; then how to combine the criteria with the FEM simulation system to make the numerical prediction of wrinkling into reality is also resolved in the paper. The effects of the forming parameters on the deforming result are analyzed by the uniform predict criteria. The results show as follows: as the compress width increase, external wrinkling first come into being, then internal winkling do, and finally in-plane bend occur; the loading wedge angle increase, internal winkling first come into being, thenin-plane bend do, and finally external wrinkling occur; in-plane bend is possible to occur with a increase of the strain-hardening exponent and the strength coefficient; and the effect of the friction factor may be ignored.

2揭示了板带不均匀压下面内弯曲成形过程基于能量原理的失稳起皱机理，提出了统一的描述内外缘起皱波形的函数，采用变分法推导了服从该波形函数的内外缘起皱能，建立了统一的起皱预测准则；将新建立的统一的起皱预测准则引入到数值模拟系统IBS中，数值预测结果与实验结果的吻合较好；分析了成形过程各参数对起皱的影响规律：随着接触变形区宽度的逐渐增大，先是发生外缘起皱，然后发生内缘起皱，进而才出现稳定成形；随着实际加载楔角的增大，先是发生内缘起皱，然后发生稳定成形，进而出现外缘起皱；硬化指数和强化系数增大，易于稳定成形；摩擦因子对起皱的影响不明显；而且接触变形区宽度对起皱的影响最大。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？