查询词典 optimum solution

Furthermore, the metallic glass samples are prepared by vacuum injection method and the rationality of above-mentioned relationships and RBF models is directly verified. It is shown that there are extremum phenomena between the Rc andΔd ,Δe and v respectively. However, the positions of the extremum are different from different alloy systems and the extremum phenomena may be related to the optimum composition region and the optimum additive quantity. More elements in the alloy are in favor of the improvement of the GFA. And as for the high GFA alloy, the atomic percentage, atomic radius difference and atomic electronegativity difference are harmoniously matched.

d、Δe和v与临界冷却速度Rc的关系中都出现极值现象，对于不同的合金体系，极值出现的位置不同；金属玻璃的最优成分范围以及各种添加元素的最佳添加量行为，可能与此极值现象相关；合金中包含的组元数目多有利于提高其玻璃形成能力，玻璃形成能力强的合金，其各个组元的原子百分含量、组元原子半径差及其电负性差之间的搭配是很和谐的；融合建模的合金系之间包含的主要组元数量和种类越相近，所建立的模型的可靠程度越高，其预测结果与实测结果越吻合。

This paper introduces the optimum design idea widely used in mechanics especially in automobile at present, Firstly explicating one particular optimum method for this automobile steering gear design.

摘要本文首先介绍目前在机械行业尤其是汽车行业中应用较广的最优化设计思想并且针对本次汽车转向梯形臂的设计的一种具体方法作了详细的阐述。

This paper exploits the optimum design idea widely used in mechanics especially in automobile at present, and explicating one particular optimum method for CA1091 steering gear design.

摘要本文利用在机械行业尤其是汽车业中应用较广的最优化设计思想并且针对北京CA1091转向梯形臂的设计作了详细的阐述。

According to the model, the deflection and main pre-brace parameters are illustrated with the Jinsong station of the tenth line in Beijing. It demonstrates that the curve shape of theoretical result, computing result and the on-set measure result are uniform in the main and the change law is similar; that the circumferential space of pipe-roof has a optimum value while satisfying the pre-brace function; that the relation between diameter of steel pipe and flexibility of barrel vault meets negative exponential function. And the diameter of steel pipe has a optimum value.

依据该模型，以北京地铁10号线劲松车站管棚支护为例，着重对管棚的挠度和主要支护参数进行的分析表明：理论结果与计算结果和现场量测结果的曲线形状基本相同，变化规律相似；在满足预支护作用的同时，存在相对较优的管棚环向间距；钢管直径与管棚挠度之间符合负指数函数关系，管径存在最佳值。

The results showed that NAA at 0.15～0.9 mg·L -1 was appreciate, and 0.69mg· L -1 was the optimum concentration for bulbil induction from scale expl ants in vitro; and that 3.2mg.L -1 was the optimum concetration of 2,4ˉD for callus induction from l eaflet explant in vitro.

结果表明， NAA诱导离体鳞片外植体产生小鳞茎的用量范围为 0.15～ 0.9 mg·L -1 ，最佳用量为0.69 mg·L -1 ； 2，4ˉD诱导叶片形成愈伤组织的最佳用量为3.2 mg· L -1 。

First, a chlorinator was self-designed in this paper, and dichloride of 2-methyl-1-propene was synthesized by 2-methyl-1-propene reacted with chlorine fast in this reactor. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the yield and selectivity of dichloride of 2-methyl-1-prop-ene were more than 65% and 80% respectively. Second, the preparation of 2-methylene-1, 3-propanediol, which dichloride of 2-methyl-1-propene reacted with alkali was investigated. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the conversion of dichloride of 2-methyl-1-propene was 100%. Moreover the preparation of MPO, which 2-methylene-1, 3-propanediol reacted with hydrogen, in presence of Al_2O_3-Pd catalyst, was gotten, and the product was appraised.

本文在氯化反应过程中，自行设计制作出了氯化管式反应器，在该反应器中异丁烯和氯气迅速混合反应生成二氯异丁烯，根据该氯化反应特征利用正交试验和单因素试验考察了有关因素的影响并优化得到了最佳工艺条件，二氯异丁烯的总收率达65％以上，选择性达80％；接着，对二氯异丁烯进行水解反应制得了2-甲烯-1，3-丙二醇，讨论了相关因素对水解反应的影响，并通过正交试验和单因素试验得到了较佳工艺条件，二氯异丁烯的转化率达100％；同时还对制备的2-甲烯-1，3-丙二醇在常压下采用三氧化二铝负载钯催化剂催化加氢得目的产物MPO，并对产品进行了鉴定，从而打通了整个工艺路线。

Optimum range of comminution granularity was obtained finally on the basis of building optimum program.

提出了黄芩的优化煎煮工艺参数，在此基础上，得到黄芩最佳粉碎粒度范围。

The optimum design of variable distance mechanism of side slope compactor was performed by means of mathematical programming method and optimum design principle.

用数学规划法和"最优设计"原理对边坡压实机工作装置的变距机构进行了优化设计。

To study the performance of photocatalystic reactor, we designed and made the experiment rig that is fit for sewage treatment. Considering practical applications, we have discussed the optimum inclination for flat photocatalystic reactor. Under the condition of lack solar radiation fact survey date founded on wave band, the suggestions to determine the optimum inclinations for flat solar collector are given. In the experiments of degradation of dye, Congo red and Methylene blue dyes were taken as targets' contamination.

在光催化反应器的研究中，我们在现有的基础上，自行设计制造了适合于草酸铁/过氧化氢体系污水处理的平板型光催化污水处理实验装置；考虑到今后的实际应用，还对其最佳倾角问题进行了讨论，在缺乏长期太阳分波段辐射实测数据的前提下，建议平板型光反应器采用平板太阳能集热器的最佳倾角。

The optimum carbon source of the pathogen for the hypha growth and conidiophore bearing was amylomaltose, the optimum nitrogen source was yeast extract and the alternation of light and darkness could promote the hypha growth.

菌丝生长及产孢的最适碳源为麦芽糖，最适氮源为酵母膏，光暗交替有利于菌丝的生长。

His lawyer and longtime friend, Veronica Donovan, stands beside him.

他的多年的律师朋友，Veronica站在他身边。

HIGHLY KNOWLEDGEABLE IN HANDLING GENERAL ACCOUNTING, TAXATION AND OTHER REPORTORIAL REQUIREMENTS WITH THE GOVERNMENT BUT NOT LIMITED TO MONITORING OF RECEIVABLES/PAYABLES, AND PREPARATION OF FINANCIAL STATEMENT.

擅长关于财务、税务、以及其他政府和相关单位要求的报告的要求等，但不限于应收/应付帐款及财务报表的准备等。