查询词典 surface area

In Brunn-Minkowski-Firey theory, we establish two extremum properties of the new ellipsoid; Then we generalize Petty\'s affine projection inequality and monotonicity results related to affine surface area to L_p—affine surface area; We establish the Brunn-Minkowski type inequalities for the volume of the L_p centroid body and its polar body with respect to the normalized L_p radial addition. At last, we introduce the minimal L_p—mean width of a convex body and generalize the minimal mean width to the Brunn-Minkowski-Firey theory.

在L_p-Brunn-Minkowski理论中，我们首先给出了两个关于新椭球的极值性质；然后研究了L_p仿射表面积，将Petty仿射投影不等式和Winterniz单调性问题推广到L_p仿射表面积；建立了L_p质心体和其极体的Brunn-Minkowski型不等式；研究了凸体的最小L_p平均宽度，给(来源：3bABbeC论文网www.abclunwen.com)出凸体K具有最小L_p平均宽度的充分必要条件，最后给出了凸体L_p平均宽度位置的稳定性。

Convex body; star body; polar body; inequality; extremum; i—th width integral of convex body; mixed width-integral of convex bodies; mixed chord-integrals of star bodies; affine surface area; mixed affine surface area; mixed projection body; mixed body; L_p-projection body; L_p-centroid body

基础科学，数学，几何、拓扑凸体；星体；极体；不等式；极值；凸体i-次宽度积分；凸体混合宽度积分；星体混合弦长积分；仿射表面积；混合仿射表面积；混合投影体；混合体； L_p-投影体； L_p-质心体

The specific surface area and pore structure of mortar with cracks after electrodeposition were examined by COULTER SA3100 Surface Area and Pore Size Analyzer.

采用COULTER SA3100比表面积和孔径分析仪研究了电沉积处理后带裂缝的砂浆比表面积和孔结构的变化。

6 F/g when the super-high specific surface area activated carbon has a specific surface area of

结果表明，超高比表面积活性炭(SBET≥2500m2/g)比表面积为2827m2/g时，电容器比电容值高达101.6F/g，是比表面积为1384m2/g的普通活性炭电容器比电容的2.4倍。

By means of SEM, specific surface area, micro-structure of bamboo charcoal, specific surface area and characteristics of pores are observed and analyzed, with emphasis on formation of micropore, and development laws.

采用扫描电子显微镜观察，比表面积分析仪等，对竹炭的微观结构、比表面积与孔隙特征等进行了观察与表征，研究了不同最终温度炭化条件下竹炭孔隙的形成与发展规律。

A new idea for specific surface area standard reference materials which are made of nonporous mono-disperse SiO2 spheres and the true specific surface area can be calculated accurately from their diameters is presented.

提出一种新型比表面积标准物质的研究思路，即用无孔的单分散SiO2微球作为比表面积标准物质的材料，它的"真实"比表面积可以通过对其粒径的准确测量，用几何的方法计算出来。

Through reiterative study over years by the author,a new principle to express the relation between aggregate particles size and the surface area was proposed,that is the specific granularity,which could solve the problem of lack of correlation of fineness modulus to the specific surface area of the sand.

经多年反复研究，发现了集料粒度与表面积关系法则，提出了以"比粒度"表述砂石粒度的新方法，解决了以"细度模数"表述砂子细度的不足之处，即解决了细度模数与不同细度砂子的比表面积没有相关性的问题

Finally the fertilizer specific surface area is obtained according to spheroid surface area formula finally.

这一比表面积的测定方法可以方便地应用于控释肥料研制过程计算包膜的厚度和膜材的用量。

Then, the equation of quantitative structure-activity relationship was effectively established with four descriptors like the molecular volume V(subscript m, order zero chi index, sum of the product of solvent-accessible surface area multiplied by partial charge for all positively charged atoms (Jurs-PPSA-3), and molecular surface area.

QSAR方程含分子体积V、分子分支度指数CHI-0、分子中带正电荷原子的溶剂可积面积与其所带电荷之积的加和值Jurs-PPSA-3以及分子表面积S4个结构描述符。

If the specific surface area (0.3391 m2/g) of non-modified tea extracted residual was set as 1, the specific surface area of 9 adsorbents, modified with optimized condition, will be 24.7 thiocarbamide plus phosphorylation (1, 12.2 phosphorylation (1, 6.7, 6.5 phosphorylation (2, 6.1 (sodium thiosulfate modification), 5.9 formaldehyde (1, 5.8 formaldehyde (2, 5.4, and 4.9.

设未经修饰过茶叶渣比表面积(0.3391 m2/g)之相对比值为1，其余九种化学修饰化法制备之吸附剂比表面积相对比值分别为硫脲加磷酸化修饰处理法24.7，磷酸化修饰处理法 12.2，磷酸化修饰处理法 6.7，硫脲提升纤维素架桥作用6.5，硫代硫酸钠修饰处理法6.1，甲醛修饰处理法 5.9，甲醛修饰处理法 5.8，醋酸修饰处理法5.4，柠檬酸修饰处理法4.9。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了