查询词典 direct method

In this paper, the improvement of the low velocity impact resistance performance of composite plates using shape memory effect of shape memory alloy is analyzed by using finite element method, The constitutive relationship and the model of finite element analysis of SMA hybrid composite plates are established, The finite element equation is solved by using the Newmark direct integration method and the modified Hertzian contact law.

应用有限元方法分析了利用形状记忆合金的记忆特性提高复合材料抵抗低速冲击的能力，建立了SMA复合材料板的本构关系和有限元分析模型，利用修正的Hertzian接触定律确定冲击接触力，应用Newmark直接积分法求解方程；研究结果表明利用SMA的形状记忆功能可有效地改善复合材料板的低速冲击响应性能。

Based on the analysis and comparison of various methods of mensuration of effective ingredients of indigowoad root,phenol-vitriolic colorimetry has been choosen to be the method of mensuration of amylose in indigowoad root, and standard amylose graph has been made,in which c=22.476A+0.5309, correlation rate r=0.9970; Direct colorimetry has been choosen to be the method of mensuration of indigotin and Indirubin,and based on all above,the maximal absorb wavelenghes of indigotin and Indirubin have been determined through experiment.

在分析比较各种板蓝根有效成分测定方法的基础上，选用苯酚-硫酸比色法作为板蓝根多糖的定量测定方法，作山了多糖的标准曲线：c=22.476A+0.5309，其相关系数r=0.9970；选择直接比色测定法作为靛蓝、靛玉红的测定方法，并在此基础上通过试验确定了靛蓝、靛玉红的最大吸收波长及显色稳定性。

Combining the lost buoyancy method with the added weight one, the calculating methods of curves of statical stability are presented when the damaged warships' metacentric height is negative. Direct calculation method is adopted to correct the effect of the free surface on curves of statical stability.

采用损失浮力法和增加载荷法相结合的方法给出了舰船破损后出现负初稳性时的静稳性曲线计算方法，自由液面对静稳性曲线的修正采用直接计算法。

Crystalline and amorphous nano-Al_2O_3 powder were synthesized by room-temperature hydrolysis method and direct oxidic method respectively, and nano-SnO_2 powder was produced by sol-gel technology. Their microstructure features and growth behavior of crystal grain were studied in detail, and corresponding model and theory were put forward to explain them.

采用室温水解法和直接氧化法分别获得了晶态和非晶态纳米Al_2O_3粉，采用溶胶-凝胶法制备了纳米SnO_2微粉，研究了它们的微结构特征与晶粒生长行为，并提出了相应的模型与理论去解释。

Ultrafine copper powder s were prepared by direct reduction method with hydrazine hydrate and formaldehyde as composite reductive agent and glucose prereduction method,respectively.

分别采用水合肼-甲醛复合还原剂法以及葡萄糖预还原法制得了微米级的超细铜粉，并利用粉末X射线衍射以及扫描电镜对其进行了表征。

The method of two-step acid hydrolysis for extracting diosgenin from D. zingberensis wright was studied with orthogonal tests. The experimental results show that the raffinate of diosgenin is up to 2.41%, has improved by 9.55% than the method of direct hydrolysis (2.20%).

采用正交实验的方法，探讨了经过二次酸水解法从黄姜中提取薯蓣皂甙元的工艺条件，结果表明该方法提取的薯蓣皂甙元产率达到了2.41%，比直接水解法(2.20%)提高了9.55%。

The second method is a direct interpolation to evaluate the stree field with a moving least square method.

另一种是借助于活动的最小二乘法直接插值得到应力场。

A method for direct determination of Cu, Pb, Zn, S, Mg and As in copper sulphide concentrates by Axios PW4400 wavelength dispersive X-ray fluorescence spectrometer using lithium metaborate-lithium tetraborate fusion sample preparation method has been developed.

采用偏硼酸锂和四硼酸锂混合熔剂熔融法制样，波长色散X射线荧光光谱法测定铜精矿中铜、铅、锌、硫、镁、砷，考察了熔剂、玻璃化试剂和预氧化条件对制样的影响。

The improved direct titrimetric method of the total sugar (Chinese standard method GB/T15038-1994) in red bayberry dry wine was investigated.

探讨了改进GB/T15038-1994标准中直接滴定法测定杨梅果酒生产中总糖的方法。

In order to obtain better characteristics of photonic crystal lasers, the wafer bonding technology is introduced to integrate MQWs wafer with different uncompatible wafers. We utilize the direct bonding method and glue bonding method to integrate the 1550nm long-wavelength MQWs with DBR wafer or sapphire. The effect factors of bonding process and choice of bonding materials are discussed. At last, we measure the photoluminescence spectra of our membrane devices and bonding samples.

为了得到更好的光谱特性，我们介绍了各种晶圆接合技术去整合含有多层量子井结构的晶圆与其不相容的材料，我们利用直接接合和溶胶接合的方法去接合1550nm长波长的多层量子井晶圆与含有DBR结构的晶圆或sapphire，并对於各种接合影响因素与材料的选择加以讨论，最后再对我们的层状光子晶体雷射和晶圆接合后的样本做量测。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。