查询词典 concentration on

Then the NEW fibers on a medical pinhead and a small extruding machine were prepared. It was concluded that rising the spinning velocity and coagulator concentration properly can improve the properties of the fibers, and furthermore, established the preliminary spinning technological process.

同时也利川医用针管及小型挤出机进行了成丝实验，试制山了NEW纤维，初步证实了适当提高纺丝速度利凝固浴浓度可增强纤维的性能，进而初步确定了纺丝工艺流程。

To get the concentration of elements on the different coating is very important for the study of the new material.

探讨各种元素在基体材料表面的分布和渗透行为，对新材料的研究具有十分重要的意义。

To study changes of the activity of iNOS in the liver and the concentration of NO in blood serum and NO' effect on inhibiting or killing coccidia,rabbits infected with Eimeria stiedai were injected with different concentrations of the substrate of NOS—L—Arg and the inhibitor of iNOS—L—AG through the abdominal cavity.

本试验以腹腔注射的途径给予斯氏艾美耳球虫感染家兔不同浓度的一氧化氮合酶底物L-精氨酸和诱导型一氧化氮合酶抑制剂L-氨基胍，对家兔球虫感染时血清中NO浓度和肝的iNOS活性及各试验组家兔的病变进行了研究。

Extracting technical conditions of carminic acid from cochineal was examined in this paper, and effects of pH, concentration, extracting times, extracting temperature, extracting time, and particle size of raw material on the yield of carminic acid were investigated.

笔者研究了从胭脂虫中提取胭脂红酸的工艺，探讨了浸提液pH、浓度、浸提次数、浸提温度、浸提时间、原料颗粒度、料液比等对胭脂红酸得率的影响。

Results indicated that,dominant SSR markers or codominant markers with significant difference on length can be separated by optimized SSR amplification system and high concentration agarose gel effectively.

试验结果表明，优化的SSR扩增体系结合高浓度琼脂糖凝胶能够对显性或差异显著的共显性标记进行高效分离。

The effects of colchicine concentration and its treatment period on the derived self-hybridized triploids were also analyzed.

以'土佐文旦'柚成树为材料，探讨了秋水仙素诱导2n配子的方法，研究了秋水仙素浓度和处理时期对获得三倍体的影响。

Only two papers known to the author discussed the possible relationship between the estimates of Km and Vmax. Colquhoun (196 9) found a strong positive correlation between these estimates in a simulation study. Subsequently, Oliver (1970) examined this relationship by the asymptotic variance-covariance matrices. These simulation and mathematical analyses were based on the assumption that the substrate concentration is error-free, with the error confined to the reaction velocity. In addition, their work was confined to the several estimation methods.

就作者所知，在本研究发表之前仅有两篇文章讨论过估计值之间的相关性。1969年，Colquhoun通过计算机仿真，发现了估计值之间存在正相关关系，1970年，Oliver用渐近方差-协方差矩阵检验了这一点，但是他们的发现有很大的局限性，其一是限于仅反应速度的测量值有误差这一种情况，其二是限于某几种估计方法。

The expression level of metabolitic enzyme (CYP1A1, CYP1B1) and its correlation with cell differentiation /apoptosis were studied as well. The influence of resveratrol in cell cycle was determined with FCM. Results 1 Resveratrol not only suppresses the growth of medulloblastoma cells in a dose and time related fashion but also induces cell differentiation and apoptosis. Resveratrol promotes differention of UW228-1,-2 cells to forward glia, UW228-3 and Med-3 cells to neuron. A treatment of resveratrol in the concentration of 100μM for 48hrs comit most of cells die of apoptosis. 2 Among the four cell lines Fas and Caspase-3 were constantly expessed, whereas FasL was absent irrespective to the drug treatment. 3 ICC, RT-PCR, Western-blot hybridization and EROD enzymatic activity assay demonstrated that expression of CYP1A1 is different after treatment with resveratrol in four cell lines, up-regulated in three UW228 cell lines in a dose dependent manner but down-regulated in Med-3 cells. Suppressive effect of resveratrol on CYP1B1 expression is the same among four medulloblatoma cell lines. 4 Cell cycle distribution of UW228-3 was greatly changed after treatment.

结果：1、白藜芦醇以时间和剂量依赖性方式抑制髓母细胞瘤细胞生长，同时促进细胞的分化和凋亡：白藜芦醇促使UW228-1、-2靶细胞向神经胶质细胞方向成熟分化，UW228-3、Med-3细胞向神经元细胞方向成熟分化，以100μM作用48小时效果显著；2、四个细胞系均有Fas和Caspase-3表达，但无Fas-L基因表达和蛋白活性产生，因此难以形成Fas相关性死亡通路；3、白藜芦醇处理前后CYP1A1基因的表达在各细胞系略有不同：UW228-1，-2，-3三个细胞系白藜芦醇以剂量相关性方式上调CYP1A1的表达，而Med-3细胞系，白藜芦醇却抑制CYP1A1的表达；四个细胞系在白藜芦醇处理后CYP1B1的表达均受到抑制；4、UW228-3细胞系经白藜芦醇作用后细胞周期有较大改变，表现在G0/G1期在整个细胞周期中所占的比例增加，而其它时期则相应减少。

Through comparison with finite element method, it has been demonstrated that boundary clement method is an effective method in the analysis of some complicatedly loaded parts and local stress concentration areas on loaders.

通过与有限元法比较表明，边界元法是分析装载机某些受力复杂零件和局部应力集中区域的有效分析工具。

This paper discusses the source rocks, geochemical characteristic, oil-rock correlation, oil migration direction and favorable oil accumulations in Shuangtai-Hekou area, Liaohe basin, based on maturity parameters of oil from different wells, the abosulte concentration of nitrogen compound in oil, isomeride proportion of alkyl carbazole compounds with different polarity, and regional geology background.

在辽河断陷西部凹陷河口地区烃源岩和原油地球化学特征剖析及油源对比研究基础上，依据平面上不同井原油成熟度参数变化趋势，油藏剖面上不同原油含氮化合物绝对浓度及不同极性烷基咔唑类化合物异构体比值的变化规律，并结合区域地质背景，研究了本地区主力油源区、油气运移方向和有利油气聚集区带。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。