体密度

But if the cell density of Anabaena flos-aquae increased to 5×10^9 cellsl^(-1), the staining rate would fall to 67% obviously due to cell twisting together.

对细胞密度为4×10^7-5×10^8个l^(-1)的水华鱼腥藻，FDA染色效率可达91%以上，但细胞密度增大到5×10^9个l^(-1)时，由於藻丝体易卷曲在一起，FDA染色率下降到67%。

It is found that atomic densities of hypo-eutectic alloy increased and coordination number decreased with Si% rising, and there was a maximum of atomic density at eutectic composition.

发现在亚共晶成分范围内，随着Si量的升高，合金熔体原子密度升高，配位数下降，合金的原子密度在共晶处达到极大。

It can be seen that the bulk modulus depends mainly on electrons per atomic volume and mass density, while covalent structure of chemical bonding and N content make more contribution to theoretical hardness, and appropriate content N—N covalent bonding in the same direction tends to increase the shear modulus of nitrides.

说明在Tc的氮化物中，其体弹模量与材料的晶体结构、平均每个原子上的电荷密度和材料的质量密度有关；化学键的共价性结构和氮元素的含量对理论计算硬度有正作用；而剪切模量的极大值则与其层状结构及体系中一定量的方向基本一致的N—N键相关。

Emphasis was placed on CB-polymer interaction adjustment in order to control dispersion of carbon black aggregates in polymer matrix and obtain technical data for designing and manufacturing PTC products of practical values.

本论文在中山大学材料科学研究所有关工作的基础上，着重从聚合物基PTC材料的组成和加工工艺的角度，以炭黑填充单一低密度聚乙烯为参照体系，通过调节炭黑-聚合物基体之间的界面相互作用、控制炭黑的分散程度与分布状态，进而研究炭黑填充低密度聚乙烯/乙烯-乙酸乙烯酯共混物基PTC型复合材料，力图改善上述不足，为更好地了解这类PTC材料的结构-加工-性能之间的关系，设计和制造具有实际应用价值的PTC制品提供科学依据。

Statistical characteristics include Tectonic Density, Degree of Central Symmetry, Skewness Index, Degree of Tectonic Optimal Direction, Power Spectrum Density, Cubic Entropy and so on. The former four indexes are implemented in this paper; Structural characteristics show the characteristics of spatial distribution of geological bodies. In chapter four, a quantitative method for describing geological structure by using the structure "tree" is studied and implemented, including its formalized definition and the measurement of the similarity of different "trees".

统计特征有构造密度、中心对称度、失真指数、优益度、密度功率谱、方位熵等等，本文实现了前四个参数值的提取；结构特征是反映地质体空间分布的结构特点，第四章研究和实现了用"树结构"描述地质结构的定量方法，包括结构的形式化描述和结构的相似性度量。

Methods The coarctation of the abdominal aorta hypertension model was established in Sprague-Dawley rats.

建立腹主动脉缩窄性高血压大鼠模型，测定大鼠平均动脉压、大鼠心肌的表面积密度、体积密度、比表面及平均自由程等各项体视学参数并计算。

On this foundation, the followingfew problems are resolved. Firstly, we have a kinematic density formula for pairs of needles by using thekinematic density formula for pairs of oriented lines. The geometric probability thatthe random pairs of needles intersect at a point in convex body K is considered.

在此基础上，重点解决了以下几个问题：首先利用R~2上有向直线偶的运动不变密度公式，得到了针偶的运动不变密度公式，考虑了针偶与凸体K相交且针偶的交点属于K的这样一个几何概率问题。

The program of AER+RES was similar to AER, but went through resistance exercise 20min in base section of every exercise trail.Result: Prior to intervention, adiponectin levels were significantly correlated with BMI、 WHR、 COS、 LN、 LN、 TG、 LG10、 LN、 weight、 waist、 FM、%F, and leptin levels were significantly correlated with BMI、 WHR 、 LN 、 LN 、 TG 、 HDL-C 、 LG10、 apoB 、 apoA1/apoB、 waist、 F1M、%F. Stepwise multiple regression analysis revealed that LG10; COS and waist was an predictor of basal adiponectin levels , and %F,apoB and WHR was an predictor of basal leptin levels. In early obesity, adiponectin and leptin can be worsened , along with the changed of body component, fasting plasm glucose and lipid accumulation. After intervention, both group were significantly reduction in FM,%F,weight, WHR,FPG and TG, while HDL-C had significantly increased.AER exhibited significant in leptin, while AER+RES did not show the change. Insulin and HOMA-IR were changed in both groups. The control group exhibited no significant change in any variables. Although adiponectin levels were unchanged in the three groups, a significant negativecorrelation between delta %F, delta WHR and delta FPG was observed. Futhermore, if compare the degree of delta weight, we fought a significant increased in adiponectin between the group of delta weight higher (=3kg) than delta weight lower(=0kg), delta %F, delta WHR and delta weight were significant negative correlation with delta leptin.

结果：绝经妇女脂联素水平与体重指数、腰臀比、空腹血糖、空腹胰岛素、LEP、TG、极低密度脂蛋白胆固醇、胰岛素抵抗指数、体重、腰围、体脂含量、体脂百分比显著相关；瘦素水平与BMI、WHR、FINS、LEP、TG、HDL-C、VLDL-C、载脂蛋白B、apoA1／apoB、腰围、FM、％F等指标显著相关；多元逐步回归分析显示LG10、COS和腰围是基线脂联素水平的预测变量，而％F，apoB和WHR是基线瘦素水平的预测变量；在肥胖前期，脂联素、瘦素已经出现明显不良变化，同时也伴随着体成分、空腹血糖和血脂的异常；运动实验后，两个运动组的FM、％F、体重、WHR、FPG、TG都显著下降，而HDL-C显著上升；AER组瘦素显著下降，而AER+RES组则没有显著变化；两组的胰岛素和HOMA-IR水平都有显著下降；对照组所有指标都没有明显变化；尽管运动后脂联素水平没有显著变化，但是脂联素变化量与％F、WHR和血糖变化量显著负相关，而且如果按照运动后体重下降的程度比较，则体重下降大(≥3kg)的受试者比下降小的(≤0kg)脂联素水平有明显升高；运动后瘦素水平的变化量与％F，WHR及体重的变化量显著负相关。

The microstructure of hardened layer and formation mechanism were investigated.The microstructure of hardened layer consist of the completely hardened region and the transition region.The completely hardening region is composed of fine acicular martensites,residual austenites and a few dot-like carbonides.From surface to bottom in the hardened layer,the microstructure varies from fine to coar...

结果表明：采用适当的磨削参数可满足该钢所要求的淬火温度，进而获得适宜的淬硬层显微硬度和强化层深度；磨削淬火层由完全硬化区和过渡区组成；完全硬化区主要由细小针状马氏体组成，从表面到里层，组织形貌呈现&细→粗→细&的变化规律，其形成机理是热-力耦合作用影响磨削淬火过程中的奥氏体晶粒大小及其位错密度，并将直接影响转变后的马氏体组织形貌。

In this work, the failure problem analysis was carried out based on self developed carbon fiber and carbon composite heating elements, with the purpose of process optimization, the twisting and winding equipment for ply yarn carbon fiber heat ...

本文首先进行了碳素电热元件的失效问题分析，以优化工艺为目的研制了碳素纤维电热体股线的捻制缠绕设备和碳素复合材料电热体的高温定型装备，在制备出高质量碳素电热元件的基础上测试其相关的电热性能并进行机理分析，之后系统研究碳素纤维及其复合材料电热体热辐射性能的变化规律，最后从工程应用出发，进行碳素复合材料电热元件辐射热流密度分布的数值模拟。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。