光密度

Average optical and average gray scale can be used to describe the differences between the groups.

平均光密度和平均灰度可用于各组间差异的描述。

Finally, the problems of feature selection and the design of leukocyte classifier are discussed.

最后分析了白细胞图像的特征描述，对分割后的白细胞核、浆区域图像提取了形态、彩色光密度和纹理特征，并就特征选择、分类器的设计等问题进行了讨论。

Standard Graph: The results indicated a mostly linear relationship between optical density and protein concentration of BSA up to

标准曲线图：结果指出在光密度和 BSA蛋白浓度在0.7g/L之间有重要线性关系。

Results The number and the mean optical density of Bcl-2-IR neurons were significantly increased with rhIL-6 in cultured hippocampal neurons.

结果 培养3、7、14、21和28 d时，rhIL-6组神经元活存数、Bcl-2-IR阳性神经元数和Bcl-2-IR阳性神经元的平均光密度均明显高于对照组。

Results: After SCI, the number of GFAP positive cells and mean optical density of GFAP were raised from day 3 to day 14, and decreased on day 28, which was s till higher than normal.

结果：大鼠脊髓损伤后3~14d，GFAP阳性细胞数及平均光密度均增加，至第28天时则减少，但仍高于正常组。

Methods SP immunohistochemical staining was used to detect the level of VEGF and EG-VEGF in 85 cases of the epithelial ovarian tumor tissue(25 cases of benign tumor,27 cases of ovarian carcinoma of stage FIGOⅠ、Ⅱ,33 cases of ovarian carcinoma of stage FIGOⅢ、Ⅳ)and 20 cases of normal ovarian tissue.The integral optical density was measured.

方法应用免疫组织化学SP法和形态定量学方法检测85例卵巢上皮性肿瘤(良性25例，FIGOⅠ、Ⅱ期卵巢癌27例，FIGOⅢ、Ⅳ期卵巢癌33例)和20例正常卵巢(除外卵巢疾病的绝经前患者)组织中VEGF、EG-VEGF表达的阳性率及积分光密度值。

The mathematical fitted results of the change in optical density are in accordance with the experimental results.

讨论了光密度与吸收剂量之间的变化关系，并与实验结果进行了比较。

After one hour at 37℃,the optical density values of each group were checked with ELISA.

经37℃温育后，用酶联免疫吸附方法检测各组不同稀释度的光密度值。

Integral optical density can be used as an important parameter in distinguishing normal cells from malignant lymphocytes.

积分光密度可以作为鉴别正常细胞与恶性淋巴瘤细胞的重要参数。

After 6–8 h of growth cells reached the midlogarithmic growth phase and the final optical density was recorded.

在6-8小时后，当细胞增长达到中对数增长期时记录最终的光密度。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。