查询词典 quantitative analysis

The quantitative relationship between the structure of artemisinin analogues and their antimalarial activity against W-2 was studied by Comparative Molecular Field Analysis.

采用比较分子力场分析法，将40个类青蒿素的抗疟活性作了定量构效关系的研究。

The ultrasonic-assisted solvent extraction and quantitative analysis of the oxine-copper residues in soil with ion pair of antiphase HPLC was established. This methods mainly uses XBridge C5 column and UV detector by using waters phase of phosphatic buffered solution/acetonitrile (60:40, by vol) as mobile phase with 0.8 mL/min flow ratio and UV detection at 245 nm. The residue time was 4.72 minute. The linear correlation of this method was 0.9987. The recovery rate was 76.2 to 108.7%. Comparatively standard deviation was 0.6 to 3.37%. The detection limits of method was 0.05 mg/kg.

建立了土壤中喹啉铜的超声波辅助溶剂提取－反相离子对高效液相色谱法的残留分析方法，该方法使用XBridge C18色谱柱和可变波长紫外检测器，并以水相磷酸盐缓冲体系－乙腈（体积比60：40）作流动相；流速为0.8mL/min；检测波长为245nm；保留时间为4.72min；线性相关系数为0.9987，回收率在76.2%~108.7%之间，相对标准偏差在0.6%~3.37%之间，对土壤的最低检出限为0.05mg/kg。

Methods Turning tests induced by apomorphine and forelimb functional tests were performed. Also, the expression of TH mRNA in mesencephalon of the rats was detected by semi-quantitative analysis of one step RT-PCR.

利用阿朴吗啡诱发旋转试验和前肢功能试验，检测PD大鼠的神经行为学特点，一管法逆转录聚合酶链反应半定量检测其中脑TH mRNA的表达。

All of these showed,the quantitative analysis method is valuable for the appraisement of mass customization.

最后通过案例分析表明了该定量分析方法对于大批量定制生产的分析评价是有价值的。

The mathematical model was verified in experiment with the method of indirect squeeze cast Archimedean spiral proof sample. And the experimental results show that the maximum deviation between the theoretical value and measured value is less than 8%. This model can be used for quantitative analysis and estimating effects of the craft factors on the filling ability, and can also predict the maximum filling length. It has the important reference value to design the semi-solid alloy rheoforming technology and mould.

采用间接挤压铸造阿基米德螺旋线试样的方法对该数学模型进行了实验验证，实验结果表明：理论计算值与实验测定值之间的最大偏差小于8%；该数学模型可以定量分析和估算工艺因素对充型能力的影响，并可预测充型极限长度，这对半固态合金流变成形工艺设计和模具设计都有参考价值。

It is an advanced locating technology for the investigation of reservoir bed distribution, the evaluation of porosity and permeability and the quantitative and qualitative analysis of fissure and fault by means of the geophysical method based on the research and practice of architectonic geology.

在构造地质学理论研究和实践的基础上采用地球物理技术进行储层层位的分布，孔隙度、渗透率的确定以及裂缝、断层的定量、定性分析，这是一种先进的确定地址的技术。

In our study on the quantitative Auger analysis three main matrix effects, the escape depth λ, atomic density n and the backscattering factor R, which is the most important matrix parameter, are considered.

本文对信息深度范围内可视作均匀的多元合金，提出一种新的定量俄歇分析方法。

Methods Take the audibility threshold、basilar membrane stretched preparation and immunofluorescence stain as the index, observing that the rats were put in the stationary noise before 30days until after that for 7days, have vitamin E and sodium chloride , check the auditory brain stem potential and the lost rate and NF-κB of the OHC in the cochlea hair cells expression quantitative analysis.

以听阈、耳蜗基底膜铺片及免疫荧光染色为指标，观察大白鼠在稳态噪声持续暴露之前30天至暴露后7天，灌维生素E或生理盐水，对大白鼠听觉脑干电位分析和耳蜗外毛细胞丢失率分析及NF-κB在耳蜗毛细胞中表达定量分析。

To study the expression, purification and bioactivity of human augmenter of liver regeneration in Pichia Pastoris, the expression plasmid pPICZαA- ALR was constructed and transformed into P. Pastoris by the method of electroporation transformation. Induced with 0.5% methanol, the 30 kD protein in the culture supernatant of recombinant P. Pastoris was confirmed to be rhALR by SDS-PAGE and Western blot. Quantitative analysis showed that the target protein was in a level of 66% of the total protein of the culture supernatant, with a yield of 40mg/L.we had performed DEAE anion exchange chromatography two times with excessive and regular adsorption quantity consecutively, and then the rhALR above 95% purity and 52% protein recovery could be obtained by G75 molecular sieve chromatography at last step. The bioactivity assay of the purified product showed that rhALR could stimulate the proliferation of HepG2, SMMC-7721 and NIH-3T3 in vitro.

为在毕赤酵母中分泌表达人肝再生增强因子，以色谱法分离纯化后进行体外活性研究，构建表达载体pPICZαA- ALR，经电穿孔转入毕赤酵母中，用0.5％甲醇诱导表达；重组酵母培养上清经SDS-PAGE电泳和western blot鉴定后表明， rhALR以分子量为30kD的二聚体为主；定量分析结果表明，重组酵母培养上清中rhALR约占总蛋白的66％，表达量约为40mg/L；经DEAE柱和G75柱纯化后，获得的rhALR纯度大于95％，得率为52％；体外生物学活性实验表明，rhALR能明显促进HepG2、SMMC-7721和NIH-3T3细胞的增殖。

According to the quantitative analysis, the critical time to stop or run back the wheel and shaft when the driving rotor generating an impulse during strike of the return high-pressure gas is calculated...

介绍了我厂关键设备氧化铝沸腾焙烧炉罗茨鼓风机的功能，及自1997年11月投产以来先后发生四次事故的情况，重点分析了由于高压气体回流冲击而使同步齿轮与轴配合面产生相对滑移的可能，通过定量分析计算高压气体回流冲击时对主动转子产生冲量使其停止或反转的临界时间，同时提出了预防措施。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。