在数
- 与 在数 相关的网络例句 [注:此内容来源于网络,仅供参考]
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For gas flow past cylinder, the characters of flow field in different Mach number and Knudsen number condition were investigated, and especially for low Knudsen number cases, the results were compared with calculating results of Euler's equation. It showed that they are correspondent by comparing the characters of bow shock and wake. The convergence rates of different high resolution and implicit schemes were also investigated. The convergence behavior of the implicit WENO scheme developed in this paper is better than others. For gas flow past NACA 0012 airfoil, the calculating results were compared with results of experiment. It showed that the results of WENO scheme are of higher accuracy for the case with angle of attack.
在圆柱流场时,我们探讨不同马赫数且不同纽森数时的流场特性,并在低纽森数时,与那维尔-史托克方程式的计算结果比较,我们比较了弓形震波及尾流附近的特性,其结果是相当符合的,同时我们也比较不同高解析隐式算则的收敛历程,从收敛历程图可得到,本文发展出来的隐式WENO算则有较佳的收敛效果;在NACA 0012翼形的流场中,我们将与实验结果做比较,发现利用WENO算则计算的结果,对於具有攻角的流场,亦有相当高的准确度。
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In this coding scheme, each of the digits(0-9)in the decimal system is coded as a four-digit binary number, and these binary number are added in sequence as in the decimal number system.
在这个编码方案,每一项数字( 0-9 )在小数制编码为4位数二进制数,而这些二进制数已加入顺序,在十进制数系统。
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Developmengts anslysis on plant high, caulis leaves and single fruit showed with coincident disciplinarian, but distributing unlikeness. From seedling time to flourishing time, 2 importing varities's developments curve were keeping epigyny, showed that importing tomatoes varities had obvious advantage on plant high, caulis leaves and single fruit, and had bigger increase production potential.
株高、主茎叶片数和单株果数等3个测试指标的动态分析表明,规律一致但分布不同,2个进口品种的动态曲线从苗期到盛果期始终保持上位,说明进口品种在株高、主茎叶片数和单株果数3个生长发育指标上具有明显优势,植株生长旺盛,增产潜力大。
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The conceptions of the superiority, inferiority and equipollence position degrees of the interval grey number were defined, and it was proved that the sum of three position degrees for a certain interval grey number related to another grey number is 1, and that the relation set of the position degrees is a whole order set of the interval grey numbers.
运用灰色系统思想和系统工程的理论,揭示了人们在灰信息条件下的博弈心理与博弈决策规则;提出了区间灰数的优势、均势和劣势的概念;证明了与某一区间灰数相对的另一区间的各种灰数势之和为1,且灰数势大小关系的集合是一个全序集。
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As to arithmetic operations of fuzzy numbers,the arithmetic rules of fuzzynumbers based on generalized t-norms are introduced,which extend greatlythe implication of the arithmetic rules of noninteractive fuzzy numbers andgeneralize the arithmetic rules of fuzzy numbers of Dubois-Prade.
在模糊数算术运算方面,给出基于广义t-模的模糊数算术运算规则,该规则极大地拓展了非相互作用模糊数算术运算的范围与含义,对Dubois-Prade意义下的模糊数算术运算是一个很好的推广。
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The numerical results indicate that the operator splitting method effectively suppresses numerical oscillations in the cases of high air bearing number. The numerical results show that both air lift force and pitch moment increase with the ratio of the slider's rail height to the air film characteristic height and the air bearing number, and finally reaches to stable value.
比较在不同轴承数下的气浮力和纵倾力矩发现:同一轴承数下,气浮力随气膜特征厚度减小而增加;当磁头槽台高度与气膜特征厚度的比值相同时,气浮力随轴承数增大而逐渐增加直到达到某一值后保持不变;纵倾力矩随轴承数增加而增大到某个最大值后减小。
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In this paper, we first show that the matrix2-norm is the only norm which is not only an operator norm but also a unitarily invariantnorm.
在[l,p.94]中曾提到,向量作为矩阵看待,归范化的西不变范数只有2一范数,本文将这一结论推广成,一个矩阵范数如果它既是算子范数又是规范化的西不变
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The results showed that length from flag leaf pulvinus to spike base has the largest coefficient of variance of 42.1% and 37.2% in both DS and WW environments, respectively, while the spikelet per spike has the smallest CV of 6.4% and 5.7%. Under different water regimes, spike number per plant, effective spikelet per spike and peduncle length contribute a lot to the stable grain yield. Genetic diversity indices of DTI were from 1.95 to 2.07, with an average value of 2.02. Based on the DTI of agronomic traits, all accessions could be clustered into seven groups, the first and third groups are not sensitive to the water regimes, and the second group is more suitable for planting in dryland.
结果表明:在雨养和灌溉条件下,穗叶距的变异系数最高,分别为42.1%和37.2%,单穗总小穗数的变异系数最低,为6.4%和5.7%;不同水分条件下,植株稳产性主要受单株穗数、有效小穗数及穗下节长的影响;性状耐旱指数的多样性指数在1.95到2.07之间变化,平均值为2.02;根据性状耐旱指数将供试材料分为7个类群,其中第I、第III类群材料表现为对水分条件不敏感,而第II类群材料更适于在干旱条件下种植。
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A test model of four co-rotating disks was developed as the simplified version of a typical internal cooling system of a gas turbine compressor. The investigation was on the distribution of local heat transfer coefficient and the averaged nusselt number of the downstream main disk. Experimental analysis may lead to following conclusions: the distribution is not of monotony and multi-peaks were found along the disk surface,Nu increases with the decrease of the rotational reynold number Re(subscript w,Nu increases with the axial reynold number and the grasholf number.
针对航空发动机多级压气机盘腔的冷却问题,对具有轴向通流的三腔模型进行了系统的研究,通过对局部换热特性与平均换热特性的分析,可以表征旋转盘的热应力水平和相对冷却效果,结果表明表征旋转盘热应力水平的局部换热特性在旋转盘的半径上呈多峰分布,表征相对冷却效果的平均换热特性与旋转雷诺数Re、进气雷诺数Re以及格拉晓夫数Gr有关,当Re及Gr增加时,平均努塞尔数Nu随之增加,而Re的增加使之减小。
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ResultsThe similarity, digit span, digit sign, picture, picture remembrance , vision renew in patients after treatment were higher than those before treatment ( P .05). As to the total number, total error number and persistent error number of WCST (P . 05).DiscussionIn this study, thirty - five patients who took Risperdal treatment have cognitive function disorder in different disagree, after 12 weeks, nine items among twelve items reflecting cognitive function have significant difference , indicate cognitive deficits in schizophrenia are reversible and related to new type antipsychotic drug .
实验结果 35例患者在服用利培酮治疗前和治疗12周后认知功能的测验的比较,在相似性、数字广度、数字符号、填图、图片回忆、视觉再生测验中有显著性差异(P<O.05L在*qT中,总测验数、总错误数、持续错误数均有显著性差异沙<o.05人讨论本研究中35例病人应用利培酮治疗前均有程度不同的认知功能损害,经12周治疗后,反映认知功能的十二项分测验中的九项均与治疗前呈显著性差异,提示精神分裂症的认知功能损害具有可逆性,且与新型抗精神病药物密切相关。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。