查询词典 mean density

HP were determined by rapid urease test,Warthin-Starry silver stain and polyme rase chain reaction,and expression of P21,P53,C-myc and C-erbB-2 were detecte d by immunohistochemicology (Streptaovidin/Peroxidase,SP) method,and were evalua ted with positive expressive integrality,the mean optical density an d the integral optical density in computer assisted image analysis system.

方法经内镜和病理诊断的胃癌91例，用快速尿素酶试验，改良W-S银染色和PCR方法检测上述标本中Hp；以S-P免疫组织化学法检测P21、P5 3、C-mcy及C-erbB-2，并用阳性表达积分半定量和免疫组化图像分析进行比较。

At first, we introduce in detail relativistic mean-field theory, where a common Lagrangian density is presented. Starting with this Lagrangian density, we can obtain the Dirac equation and Klein-Gordon equations for nucleon and meson field by using Euler-Lagrangian equation.

本文首先详细介绍了相对论平均场理论的一些公式推导，给出了常用的一般的相对论平均场的拉格朗日量，从这个拉氏量出发，利用Euler-Lagrange方程就可导出核子与介子场的运动方程。

The metrics include patch density, largest patch index, edge density, area-weighted shape index distribution, area- weighted fractal index distribution, mean Euclidean nearest neighbor distance dlstributlon,standard deviation of Euclidean nearest neighbor distance distribution, coefficients of variation of Euclidean nearest neighbor distance distribution, contagion, interspersion and juxtaposition index, cohesion, Shannon's diversity index and Simpson's diversity index.

根据生态区划计算描述中国陆地景观结构的13种景观结构指数，包括斑块密度、最大斑块指数、边界密度、面积加权斑块形状指数、面积加权斑块分维度、平均最近斑块距离、最近斑块距离的标准差、最近斑块距离的相异系数、蔓延度、分布邻接指数、结合度、香农多样性指数、辛普森多样性指数。

By using image disposal and analysis system, the number density and mean light density were assessed.

应用数理统计软件SPSS 10.0for windows进行统计学分析。

In accordance with the mean bone mineral density lower than 25% of the standard model group has two parts to achieve an average bone mineral density in osteoporosis standards,show that the model is successful.

按照骨密度均数低于假手术组25%的标准，则模型组两个部位的平均骨密度已达到骨质疏松症的标准，表明造模是成功的。

Sset future prices can be forecasted with filtering historical simulation by drawing from standardized residual density. The problem of inappropriate risk neutral assumption could be resolved by the calibration from density transformation. The transformation is to identify the state price density per unit probability through the parameter re-estimation by minimizing the mean squared error of market and model prices.

bstract：使用残差机率分配抽样的过滤历史模拟法可以作为未来资产价格的预测，而风险中立假设不适当的问题则可透过风险测度的转换予以解决，该转换过程系将市场价格与模型价格的均方差极小化求得估计校正后的新参数，作为状态价格机率分配的转换机制。

Meanwhile, 2-D spectrum and the corresponding parameters of irregular wave transformation (predominant wave direction and mean wave direction, peak frequency and peak spectrum density, spectrum width, mean period, mean wave length, mean wave crest length and 3-D index and so on)、 1-D frequency spectrum and the corresponding parameters and numerical results of wave height、 wave direction of regular wave transformation are offered.

提供不规则波传播变形二维谱及其谱参数(主波向及平均波向、峰频及谱峰值、谱宽度、平均周期、平均波长、平均波峰长度及三维性指标等等)，不规则波一维频率谱及其谱参数和规则波变形的波高、波向模拟值。

A weak correlation existed between wood basic density and latitude/longitude, while a strong negative correlation existed between wood basic density and annual mean temperature, temperature in January, frostless season and accumulated temperature over 10℃ of the seed source.

种源木材基本密度虽与产地经纬度相关性较小，但却与产地年均温、1月均温、无霜期和≥10℃积温呈显著的负相关。

Sp were evaluated by computer-assisted image analysis software, and the content of OPG determined by immunohistochemistry, which included mean optical density 、positive area density in bone trabecula and total positive area of cancellous bone, were evaluated by computer-assisted image analysis and semiquantitative analysis.

Sp，免疫组化方法结合图像分析半定量分析OPG在胫骨的表达，测定平均光密度、OPG在骨小梁中阳性表达的面积密度和OPG在松质骨骨组织阳性表达的总面积。

In 1 irrigation time and 2 irrigation times treatments, soil salt content decreased by 11.7%, and soil salt content increased by 12.6% in 3-4 irrigation times treatments. 2 After irrigation, the mean reduction of soil bulk density was 6.5%, and the mean increment of soil total porosity was 18.1%. With the irrigation frequency increasing, soil density was decreased and soil total porosity was increased. 3 Soil infiltration course of reed field irrigated by wastewater fitted Horton infiltration model well. After wastewater irrigation, the first infiltration rate decreased, but the stable infiltration rate promoted with the wastewater irrigation frequency increasing. 4 Soil water-holding capacity was increased by wastewater irrigation. The maximum water-holding capacity in capillary was 90.15 mm in the treatment of irrigation 3 irrigations, and the maximum water-holding capacity in non-capillary was 4.15 mm in treatment of 4 irrigations.

废水灌溉后，土壤pH均值降低6.0%；废水灌溉1～2次，土壤含盐率降低11.7%，废水灌溉3～4次后，增壤含盐率增加12.6%。2）废水灌溉后土壤体积质量均值减小6.5%，总孔隙度均值增大18.1%；随着废水灌溉次数的增多，土壤体积质量和总孔隙度分别有减小和增大的趋势。3）Horton模型比较适合描述废水灌溉后芦苇群落的土壤入渗过程，废水灌溉降低了初渗率，但随着废水灌溉次数的增多，稳渗率增加明显。4）废水灌溉增强了土壤贮蓄水分的能力，废水灌溉3次吸持贮水量达到最高（90.15 mm），灌水4次滞留贮水量达到最高（4.51 mm）。

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。