浓度

Using metallographic analysis, original structure and surface deficiency were obtained, the influence of the structure on corrosion speed was settled, the surface macrography patterns of welded joint in different temperature and concentration were got. Microscopic patterns after corrosion in different condition were gained by SEM, though which the influence of temperature, concentration and structure on corrosion was easily observed.

采用金相分析法，不仅获得了腐蚀前焊接接头的原始金相组织以及表面缺陷，确定了组织及缺陷对腐蚀速率的影响，而且得到了焊接接头在不同温度、浓度条件下腐蚀后的宏观形貌，采用场发射扫描电子显微镜得到了焊接接头在不同条件下腐蚀后的微观形貌，从而直观地得到了温度、浓度以及组织对焊接接头腐蚀速率的影响。

The dependence of the field-induced diffraction properties on the magnetic field strength and the sample concentration is investigated.

以两种不同浓度的表面包覆型水基氧化铁磁性液体样品为例，定量地实验研究了其场诱导光衍射特性与外磁场强度和样品浓度的关系。

Results: The linear range of dichlorovos, methyl parathion and malathion was 0.25~3.00 μg/ml.

结果：敌敌畏、甲基对硫磷和马拉硫磷的测定浓度在0.25~3.00 μg/ml时，浓度与峰面积呈线性关系。

Rotational regression design was employed to modeling the degradation of malathion and butachlor in water.

以下是马拉硫磷和丁草胺在水体中降解的数学模型，式中，y-水体中农药残留浓度μg·L~(-1；x_1-温度；x_2-时间；x_3-初始浓度μg·L~

The computational and experimental results indicated that fluid flow maldistribution was significant under various GHSV.

模拟和实验结果具有相同的变化趋势，而且结果表明不同空速下燃烧蒸发器中存在较大的浓度分布不均匀性，改变出口位置对浓度场的分布具有一定的改善作用。

Effluent malodor concentration is less than 1 mg/m3 when gas flow rateis 0.3,0.6 or 1.2 m3/h and influent malodor concentration is 118?

结果表明，乙硫醇进气流量为 0 3、 0 6和 1 2m3/h ，进气浓度分别为 118、 64和 31mg/m3时，乙硫醇出气浓度不高于 1mg/m3。

Result: It approved that flavonoid extracts of Hibiscus manihot L could inhibit tyrosinase activity, the inhibition gradually strengthened with the increase of the concentration and the growth of the time, and the highest inhibition rate was 79.5%.

结果：金花葵总黄酮对酪氨酸酶的活性存在一定抑制作用，且随浓度的增加和时间的延长，对酶活性的抑制作用显著增强，当总黄酮浓度为1.50mg/mL时，达到最高抑制率(79.5%)。

The biochemical and physiological effects of Pb~(2+) on conchocelis of Porphyra yezoensis was lower relatively, at the beginning, the algae still grew under the condition of higher concentration-40 mg/L, mannite content and POD activity appeared a tendency to first increased and then decreased, but chlorophyll a content declined slightly, on the contrary, MDA content went up quickly.

Pb~(2+)对条斑紫菜丝状体的毒性相对较弱，在浓度40 mg/L时，处理早期(12h时)丝状体仍有生长，此浓度下藻体的甘露醇含量和POD活性均随处理时间的延长呈现先升后降的趋势，而叶绿素a含量逐渐下降，与此相反，丙二醛含量迅速上升。

The apoptotic effects of LPS are detected by various skills such as fluorescence staining, TUNEL reaction, DNA agarose gel electrophoresis, electron microscopy and fluorescence activated cell sorting. Our results demonstrated that fish lymphocytes would be apoptotic under different LPS concentrations(above 10μg/ml) and different time(above 6h) inducing, which is characterized by condensation and margination of chromatin, the formation of apoptotic bodies.

结果显示，在10μg/ml以上浓度的内毒素作用18后或以100μg/ml浓度的LPS作用6h以上，淋巴细胞即可出现明显的凋亡形态学变化，表现为染色质凝集和周边化，核断裂，形成凋亡小体，DNA发生特异降解产生典型的"梯状"电泳图谱，呈现TUNEL阳性标记等，并通过流式细胞术证实这种凋亡具有时问和剂量的依赖性。

The typical apoptotic morphological features appeared in MUTZ1 cells treated with 4 mmol/L VPA for 72 hours. Pyknosis of cells and nuclei, disintegration of nuclear chromatin and apoptotic body could be observed by light microscopy. Aggregation and margination of nuclear chromatin, concentration of plasm, increment of density and chromatin mass of irregular size could be observed by transmission electronmicroscope. The flow cytometric analysis indicated that the VPA could induce cell apoptosis, apoptosis rate increased in dosedependent manner, ratio of cells at G0/G1 phase increased and ratio of cells at S phase decreased in dosedependent manner, the cells were arrested at G0/G1 phase.

结果显示： VPA对MUTZ1细胞的生长抑制作用呈现时间和剂量依赖性；经4 mmol/L VPA处理MUTZ1细胞72小时后，细胞呈现典型的凋亡形态特征，光学显微镜下可见凋亡细胞胞体固缩、核固缩、核碎裂及凋亡小体；透射电子显微镜下可见凋亡细胞核染色质边集、胞浆浓缩、密度增加，胞浆内大小不规则的染色质团块；流式细胞术结果表明，细胞凋亡率随着VPA浓度的增加而逐步增高，G0/G1期细胞比例随着VPA浓度的增加而逐渐增多，S期细胞比例逐渐减低，细胞被阻滞在G0/G1期。

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。

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如果有任何问题，你可以随时联系我。