可解理想

Research results show that the latter is more suitable to describe the artificial boundary accuracy of near-field wave motion decoupling numerical simulation, and the former can be used to estimate the upper limit of artificial boundary error.

研究结果表明：理想暂态情形下的反射系数，更适合描述近场波动解耦数值模拟中的人工边界精度；而理想稳态情形下的反射系数可用于估计人工边界误差的上限。

Because the optimal triangle fuzzy numbers and optimal fuzzy vector which were used to replace the maximum sets and the ideal solution may be got by observation, not need the complex comparison process of fuzzy triangle fuzzy numbers.

研究发现，本文提出的模糊灰色关联分析法以可通过观察而直接得到的最优三角模糊数和最优模糊向量分别代替了以往的模糊极大集和模糊理想解，避免了模糊数比较的复杂过程，提高了模糊综合评价的决策效率。

In the present paper,we investigate solvable radicals and Hopkins nilpotent radicals for Lie triple systems and prove that both radicals are invariant under actions of deriva- tions.

本文讨论李三系的可解根基和Hopking幂零的某些性质及导子作用下的不变性，讨论了李三系次理想的某些性质，证明了李三系为幂零的当且仅当每个子系都是次理想。

First,we give some basic concepts of restricted Lie color algebra,for example,p-subalgebra,p-idea and p-nilpotent Lie color algebra.

然后，我们得到限制李color代数的Frattini子代数和Frattini p-子代数的基本性质并证得可解限制李color代数的Frattini子代数和Frattini p-子代数是两个幂零理想。

After giving the concept and some elementary properties of subideals of Lie triple system,the author shows that every subalgebra of a nilpotent Lie triple systems is a subideal and a Lie triple system is solvable if every subalgebra is a subideal.

证明了幂零李三系的子系数都是次理想；当李三系的所有子系数都是次理想时，该李三系是可解的。

Furthmore,we will study the structure of the solvable ones,in particular,their maximal abelian ideals.

最后研究了可解情形（3），特别是它们的极大交换理想。

According to the analysis of problems in the traditional TOPSIS, entropy and vertical projection are used to improve the TOPSIS method, which can avoid not only the non-determinacy and optional judgments resulted from subjective opinions, but also the problem that coinstantaneous scheme may be ideal or not, so that it can improve its scientificity and rationality.

在分析传统的TOPSIS法存在的问题基础上，提出采用熵权法和正交投影的思想改进TOPSIS法；改进的模型既可避免优选结果受主观判断的不确定性和随意性，又可避免距理想解近的方案与负理想解也近的问题，提高了TOPSIS法的科学性和合理性，且模型计算相对简单。

The essential effect of feature selection is to improve the accuracy and speed of classification systems. Niched Pareto Genetic Algorithm is a powerful method to solve optimization problems with multiple objectives.

利基柏拉图基因演算法是一种针对多目标最佳化问题所发展出来的工具，可找到多个目标之间的折衷最佳解，以供分析人员选择，而这些折衷最佳解所形成之理想曲线，称为柏拉图最佳边际。

The application software can be used for optimizing and managing drainage pipe network systems in design and management department.

通过对中型污水管网和合流制管网的实际应用，表明节点递归算法和遗传算法用于排水管网设计是可行的，同常规方法比较可获得全局满意解，可以认为是较为理想的算法。

Finally, in additional to the comparison of results derived by PPP and DGPS, they were all compared to Anping tide gauge records as well. The aim of this study is the analysis of height variations provided by different methodologies. Comparing to Anping tide gauge records, the differences in height variations can achieve 4.5 cm with DGPS; 6 cm with final product; 10 cm with rapid product; 25 cm with ultra-rapid product; 1~2 m with ultra-rapid product.

实验中也搜集了安平潮位站的潮位资料，故也将此资料与GPS浮标高程方向定位成果进行比较，而研究中将著重於高程变化量之分析，假设潮位仪观测海水面高程变化量为参考解，由实验结果可发现差分相对定位椭球高变化量均方根误差之平均值约4.5公分；使用最终产品时椭球高变化量均方根误差之平均值可以达到6公分以内；使用快速产品时椭球高变化量均方根误差之平均值可以达到10公分以内；使用超快速产品观测部分於观测环境理想时椭球高变化量均方根误差之平均值可以达到25公分左右；使用超快速产品预估部分时椭球高变化量均方根误差之平均值约1~2公尺。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。