英语人>网络例句>优 相关的搜索结果
网络例句

与 优 相关的网络例句 [注:此内容来源于网络,仅供参考]

Meanwhile, the experiments show that the multi-level swarm intelligence refinement algorithm is better than the multi-level tabu search refinement algorithm, especially in view of the probability that the approximate global minimum partition of the coarser graph may be the local minimum partition of the finer graph. Furthermore, the experiments show that the multi-level ant colony optimization refinement algorithm achieves more performance improvement than the multi-level particle swarm optimization refinement algorithm, using the gain of vertex more effectively.

实验数据反映出,针对最小图上的全局最剖分可能是初始图的局部最剖分、粗化图上的全局最剖分可能是细化图的局部最剖分的情况,基于群智能的多水平迁移化算法相比基于禁忌搜索的多水平迁移化算具备更强的逃离局部最的能力;基于蚁群的多水平迁移化算法相比基于微粒群的多水平迁移化算法,对收益值的启发信息更为有效地利用,取得最佳的性能改进。

A eugenic evolution strategy genetic algorithm,which integrates random evolution operation and deterministic optimization operation,is adopted in this paper to realize global optimization in high efficiency.

采用进遗传算法,将确定性与随机性寻操作相融合,实现了高效全局搜,它所基于的进策略包括设计Powell寻算子、改进交叉算子、自适应地调整交叉率和变异率等。

Additionally, considering the additive methods with one evaluation function, we give the range of weights that ensure the fixedness of alternatives rank by the limited conditions on evaluation functions making sure the rank invariability on alternatives.

该方法通过给出有限方案集的非劣方案、潜在最方案、邻近潜在最方案以及竞争方案等定义,以Euclidean空间的距离为测度,用可变参数的最小参数变化量来描述任意方案到当前最方案间的距离,给出了以距离为基础的定量化敏感性指数,并以竞争方案到当前最方案的距离来衡量当前最方案的敏感性。

"11Eyes CrossOver" produced popular artist line-up: Stephen Hagi sound, music from Chiyoda Maru-chi positions and invite color tone featuring concerts, together with the声优sweet line-up on behalf of all famous.

11eyes CrossOver》制作阵容有人气画师:萩原音泉,音乐方面由志仓千代丸担纲并邀请彩音演唱,加上声阵容都是赫赫有名的甜美代表。

First low order approximation of generating function and approximate optimal trajectory were obtained. Then using low order approximation of generating function of Hamilton "relative motion" to the approximate optimal trajectory, improvement of the approximate optimal trajectory was iteratively made. In this way, high order approximation accuracy can be obtained by only using low order approximation, which is much cost effective in computing.

首先以较低的计算代价,获得最控制Hamilton系统生成函数的低阶近似,得到一条近似的最轨线,然后将最控制Hamilton系统相对于近似最轨线求"相对运动",该"相对运动"仍具有Hamilton性质,利用这一"相对运动"的生成函数低阶近似,可以对近似最轨线进行迭代修正,从而以计算代价较小的低阶近似逼近计算代价高得多的高阶近似的精度。

The evolutionary relationships were investgated by comparing the results from molecular data alone or molecular data combined morphological characters using different analysis methods: maximum parsimony by PAUP(superscript *) 4.0 and Bayesian inference by MrBayes 3.0B4. Base composition and ti/tv of 28S rDNA D2 regions were analyzed by PAUP(superscript *) 4.0. The results showed that GC content of the 28S rDNA D2 gene sequences of subfamily Euphorinae ranges from 40.00% to 49.25%. Transversion frequency of sequence variable sites among species of Euphorinae was higher than that of transition. The subfamily Euphorinae was proved to be a paraphyletic group with close relationship to subfamilies Neoneurinae and Cenocoelinae; only two tribes, Meterorini and Microctonini, were proved to be monophyletic groups; Centistini, Cosmophorini, Euphorini and Dinocampini were paraphyletic groups; the basal position of tribe Meterorini within Euphorinae was partially supported by our phylogenetic trees, and tribe Microctonini was proved to be a group at the top of the trees.

结果表明:茧蜂亚科的28S rDNA D2基因序列片段的GC%含量在40.00%~49.25%之间变动,而对于碱基替代情况来讲,茧蜂亚科各个成员间序列变异位点上颠换大于转换;不同的分析和算法所产生的系统发育树都表明目前根据形态定义出的茧蜂亚科Euphorinae不是一个单系群,而是一个与蚁茧蜂亚科Neoneurinae和高腹茧蜂亚科Cenocoelinae混杂在一起的并系群;在茧蜂亚科内部,悬茧蜂族Meterorini和食甲茧蜂族Microctonini(排除猎户茧蜂属Orionis)为单系群,而宽鞘茧蜂族Centistini、大颚茧蜂族Cosmophorini、茧蜂族Euphorini、瓢虫茧蜂族Dinocampini为并系群;悬茧蜂族Meterorini在茧蜂亚科Euphorinae内位于基部位置的观点得到部分的支持,同时食甲茧蜂族Microctonini被判定为相对进化的类群。

Carleman不等式及其在最优控制问题中的应用.Optimal control theory of distributed parameter systems mainly includes: Pontryagin's maximum principle; controllability; Hamilton-Jacobi equation (i.e., dynamic programming equation); time optimal control, etc.In this dissertation, we establish Pontryagin's maximum principle of optimal control problems governed by some nonlinear differential equations (parabolic differential equations, elliptic differential equations and 3-dimensional Navier-Stokes equations), which in particular could have local solut...

在这篇博士论文中,我们建立了非线性微分方程(包括抛物型微分方程,椭圆型微分方程以及3维Navier-Stokes方程)最控制问题的庞特里雅金最大值原理,特别地,这些方程可能只有局部解或存在多解(我们称这样的系统为非适定系统,相应的最控制问题为非适定最控制问题),以及适定的非线性发展方程最控制问题的庞特里雅金最大值原理;我们研究了phase-field系统的时间最控制问题以及Boussinesq系统的局部内可控性。

H higher than those for shanyou 63 respectively, the calcium contents in extracts, the Mg(superscript 2+)-ATPase activities on the chloroplast membranes, the cyclic photophosphorylation activities of the flag leaf sheathes and blades for Liangyoupeijiu were also higher than those for Shanyou 63; the means of noncyclic photophosphorylation activities of the flag leaf sheathes and blades for Liangyoupeijiu were 0.25 and 0.31 μmol/ higher than those for Shanyou 63, respectively; the photochemical avtivities of the flag leaf sheathes and blades for Liangyoupeijiu were significantly higher than those of its parents at most stages, showing heterosis over mid-parent or heterobeltiosis.

h,且大多数时期达显著或极显著水平;两培九剑叶叶鞘及其叶片浸出液钙含量均显著或极显著高于汕63;两培九剑叶叶鞘及其叶片叶绿体膜上Mg(上标 2+)-ATPase活性的均值均高于汕63,大多数时期达显著或极显著水平;两培九剑叶叶鞘及其叶片循环光合磷酸化活性的均值也均高于汕63,近一半时期达显著或极显著水平;非循环光合磷酸化活性的均值分别比汕63高0.25和0.31μmol/mg?

Gu Baiyou grows end: Cold drink of elementary school of hope of Gu Baiyou rice, Gu Baiyou, Gu Baiyou female outfit, Gu Baiyou, Gu Baiyou is not the mainstream to grow end etc, but be just empty verbiage, be born forcedly to make up unripely gave ramification of a Gu Baiyou.

二、谷百长尾:谷百大米、谷百希望小学、谷百女装、谷百冷饮、谷百非主流等等长尾、但是言之无物,硬生生的编造出了一个谷百衍生物。

With regards to the learning motive of music, after excluding the pretest influence, it is the finding of the study that the students belonging to the experimentation group score higher in the areas of "Total score","Internal goal orientation","Work value","Controlled belief","Expectation to succeed" and "Test on anxiety" than the control group, amongst which "Work value" reaches significant difference on the measurement chart; of all the students scoring high on "Selective attention" during pretest, the experimentation group scores higher than the control group on posttest scores; regarding the students with lower pretest scores, the control group performs better than the experimentation group; of the students with higher pretest scores on "Discrete attention", the posttest scores of experimentation group are higher than those of the control group; regarding students with lower pretest scores, the control group performs better than the experimentation group; on "Sustained attention", the posttest scores of the experimentation group are higher than those of the control group; on the "Total score" of multidimensional attention measurement, the posttest scores of the experimentation group are higher than those of the control group.

研究结果发现,在音乐学习动机方面,经排除前测影响后,实验组学生在「总分」及「内在目标导向」、「工作价值」、「控制信念」、「期望成功」、「测试焦虑」等分量表上皆高於对照组,其中在「工作价值」分量表上达到显著性差异;在「选择性注意力」前测分数较高学生中,后测成绩为实验组显著於对照组,对前测分数较低学生而言,则是对照组显著於实验组;在「分离性注意力」前测分数较高学生中,后测成绩为实验组显著於对照组,对前测分数较低学生而言,则是对照组显著於实验组;在「持续性注意力」方面,后测成绩为实验组显著於对照组;在多向度注意力量表「总分」方面,后测成绩为实验组显著於对照组。

第1/100页 1 2 3 4 5 6 7 8 9 ... > 尾页
推荐网络例句

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达,对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲:这种病是最常见的原因查明腹泻病,在世界上。

Gangs fill the daily lives of many of our poorest and most vulnerable citizens with a terror that the court does not give sufficient consideration, often relegating them to the status of prisoners in their own homes.

法院没有充分的考虑到黑社会的猖獗所带来的恐怖,这使得我们最穷、最可怜的市民每天生活在他们的阴影当中,成为在家的囚犯。