浓度

The effect of 1 000 μmol/L SNP to Impatiens balsamina, 500 μmol/L SNP to Tagetes patula and Gomphrena globosa was best.

其中，以1 000 μmol/L浓度对凤仙花种子、500 μmol/L浓度对孔雀草和千日红种子处理的综合效果最好。

According to the estimation of biomass in Nosiheptide fermentation process, the secondary variables are selected according to the implicit function existence theorem, and then a soft sensor model of biomass is developed by using the IBPNN. The testing result shows the effectiveness of the presented approach.

最后针对诺西肽发酵过程中菌体浓度的估计问题，根据隐函数定理选取辅助变量，应用IBPNN建立菌体浓度软测量模型，实验结果验证了所提方法的有效性。

The influence of high temperature and high pressure on foaming agent's properties in opened and closed system, and influence of the change of foaming agent's properties on foaming capacity and foam stabilizing capacity are also studied. The multiple regression theory is used to establish the quantitative characteristic functions of foaming agent versus temperature and pressure. Based on the Gibbs Principle, the quantitative characterization is carried out on relation of foam system's free energy versus its surface tension, surface area and concentration, and the analysis of energy concluded that the disintegration of the foam is inconvertible. At the same time, the influence of change of foam's shape and structure on distribution of reservoir temperature and pressure is qualitatively described, and the coupling mechanism between temperature field, pressure field and chemical field is systematically expounded.

同时，研究了不封闭体系、封闭体系下高温、高压对发泡剂性质的影响，以及发泡剂性质的改变对其发泡性能、稳泡性能的影响；采用泡沫实验的相关结果，运用多元回归理论，建立温度、压力与发泡剂浓度的定量表征函数；基于Gibbs原理，对高温、高压下泡沫体系的自由能与其表面张力、体系中液体的表面积以及浓度关系进行定量化的表征研究，从能量的角度得出了泡沫衰变过程具有不可逆性；同时定性地描述了泡沫形态、结构的变化对油藏温度和压力分布的影响，系统地阐述了温度场、压力场、化学场间的耦合作用机理。

Results:Whith the time and doses of ART incubation extended, ART significantly inhibited the proliferation of SGC-7901 cells and the inhibited effect shows dose-and -time-dependent. Obvious changes of apoptotic morphology were observed by invert microscope, fluorescence microscope, scanning electron microscope and transmission electron microscope, they showed that cells had marked nuclear condensation or the fragmentation of chromation as well as apoptotic , mitochondrial edema and vesicle , with the time of incubation extended , the proliferation rate become slow and the volume became small and transformed. FCM assay indicated that most of the cells were arrested in Go/Gi and the apoptotic peak appeared. During the prolong of incubation time, the apoptosis rate was increased. At the same time, the number of S and G2/M phase cells were decreased. The result of TUNEL indicant that there are apoptosis and necrosis.

结果：随着药物浓度的增加和作用时间的延长，蒿甲醚对胃癌SGC-7901细胞的抑制作用呈时间和浓度依赖关系：在倒置显微镜、荧光显微镜、扫描电镜和透射电镜下可观察到典型的凋亡细胞的形态改变，表现为：核固缩或染色质边聚或凝聚成大块状，可见凋亡小体，线粒体肿胀增殖，严重的空泡化，随作用时间的延长，细胞增殖速度减慢，细胞体积缩小变形；流式细胞术显示胃癌SGC-7901细胞出现明显的凋亡峰，随着作用时间的延长，其凋亡率逐渐升高，细胞周期阻滞在G_0/G_1期，S及G_2/M期细胞数大量减少；流式细胞术TUNEL检测结果显示细胞凋亡和坏死同时存在。

And also we analyzed the best time of exposition, the best time of deposition, the best COD concentration of the water from the infall during the period of SBR method, and meanwhile, analyze the result.

分析了SBR工艺阶段的最佳曝气时间、最佳沉淀时间、最佳进水COD浓度等，并对其结果进行讨论。得出最佳曝气时间为8 h，最佳沉淀时间为2 h，最佳进水COD浓度在310 mg/L左右。

Experiment results showed for covering TiO〓 particles uniformly with polymer film, the inferior limit of the concentration of SDS was 1mmol/LH〓O, which provided an adsorption density higher than 0.58μmol/m〓, the superior limit was the critical micelle concentration of the surfactant.

SDS用量下限是浓度为1mmol/LH〓O，此时它的吸附密度大于0.58μmmol/m〓，用量上限是它的临界胶束浓度CMC。

Methods Virus Cytopathogenic Effect was used in vitro to measure half inhibitary concentration (IC50), inhibitory concentration and treat index. Mouse influenzal viral preumonia experiment was carried out in vivo to observe the pulmonary pathologic change and calculate the pathologic rate and pathologic inhibition rate.

体外试验采用病毒细胞病变观察法测定药物的半数抑制浓度(IC50)和最小有效浓度及治疗指数；体内试验采用病毒接种致肺炎动物模型试验，观察肺病变并计算病变率和病变抑制率。

The conclusions can be drawn through numerical simulation: The hydrate-forming region becomes small with increasing circulation rate and inhibiter concentration, and it is possible to make the hydrate-forming region away from sea floor by increasing circulation rate and inhibiter concentration, thus preventing blowout preventer lines from hydrate plugging; the decrease in gas volume fraction in the annulus due to hydrate formation reduces pit gain, which can delay the detection of well kick; the possibility of hydrate presence at a relatively low gas production rate is much greater than that at a relatively higher production rate; the bottom hole pressure is affected little by hydrate phase transition, and it is allowable not to consider hydrate phase transition when the bottom hole pressure is calculated; shut-in casing pressure cann't truly reflect gas kick due to hydrate formation and the situation is getting worse with time

模拟计算结果表明：溢流期间，天然气水合物的生成区域会随着循环流量的增大或抑制剂浓度的提高而减小，可通过增大流量和抑制剂浓度使水合物的生成区域脱离海底，减小防喷器管线被堵塞的危险；水合物的生成使环空中气体体积分数降低，泥浆池增量减小，给溢流检测带来延迟；当检测到有气侵发生时，水合物藏分解速率比较小时，井筒中生成水合物的可能性要比分解速率大的情况下更为严重；水合物相变对井底压力的影响较小，在工程中计算井底压力时可以忽略；由于天然气水合物的生成使得关井套压值不能真实反应气侵情况，而且随着时间的增加情况会更加严重。

It implies that the calculation of movements of mobile cells is not accurate enough, that must affects the mass exchange between the mobile cells and immobile cells. Furthermore, because the value of concentration be calculated is always at center of an element and the finite difference grid is fixed, which may gives rise to numerical dispersion, especially when the steps of space are injudiciously selected.

另一方面，颗粒的位置直接影响到其所含各种成分的质量变化，这将在一定程度上影响最终各种成分的浓度计算精度，而且，该算法最终统计各种成分的浓度时，所用的窗口也是已有的固定的有限差分网格，当网格选择不合适时，有可能产生人工数值弥散。

Fermentation time and inoculum size were optimized by orthogonal experiment.

实验范围内的最适培养基组成是：麸皮浓度3％，豆粕浓度5％，培养基初始pH5.0。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。