查询词典 spheral

The main contributions of this thesis are as follows:(1)To address the problem of kernel parameterσselection and regulation of the decision boundary in SVDD algorithm,this thesis proposes a new kernel parameter optimization method based on the spheral distribution of samples in kernel space and regulation of the decision boundary method based on KPCA(Kernel Principal Component Analysis).

本论文主要以支持向量数据描述(Support Vector Data Description，SVDD)与随机森林(Random Forests，RF)模式识别工具为基础，对流程工业在线故障诊断的若干问题进行研究，其具体内容如下：(1)针对SVDD的核参数σ优化及其决策边界规整问题，提出了基于核样本球形分布的核参数优化方法与基于核主元分析(Kernel Principal ComponentAnalysis，KPCA)的SVDD决策边界规整方法。

There exists the optimum technical parameters about the effects of hydrolysis conditions. When the concentration of H+is 2.6 2.8 mol/L, the concentration of TiOSO4 is 25 28 g/L, the time of hydrolyzation is 60 min and the temperature of hydrolyzation is 125℃respectively, the yield of TiOSO4reaches 95%, the particle size of H3TiO3 is less than 40 nm, and the powder of H3TiO3 is spheral.

研究结果表明：水解条件直接影响偏钛酸的粒径及其分布，其中，钛液酸度的影响最大；水解条件对TiOSO4水解率和偏钛酸粒径的影响存在着最佳结合点，即当c为2.6~2.8 mol/L，ρ(TiOSO4)(按TiO2计)为25~28 g/L，水解时间为60 min，水解温度为125℃时， TiOSO4的水解率可达95%以上，得到的偏钛酸呈球形且粒径为40 nm。

A mathematical model ,with the heat of surface evaporation and respiration as interior heat resource,has been established to calculate the precooling time of spheral fruit by pressure-difference method.

通过将表面蒸发、呼吸热作为内热源加入到传热数学模型中，对单体球形果蔬压差预冷过程建立数学模型，并且简化边界条件，提出一种计算预冷所需时间的简便方法。

There exists the optimum technical parameters about the effects of hydrolysis conditions. When the concentration of H(superscript +) is 2.6~2.8 mol/L, the concentration of TiOSO4 is 25~28g/L, the time of hydrolyzation is 60 min and the temperature of hydrolyzation is 125℃ respectively, the yield of TiOSO4 reaches 95%, the particle size of H3TiO3 is less than 40nm, and the powder of H3TiO3 is spheral.

研究结果表明：水解条件直接影响偏钛酸的粒径及其分布，其中，钛液酸度的影响最大；水解条件对TiOSO4水解率和偏钛酸粒径的影响存在着最佳结合点，即当cH(上标+为2.6~2.8mo1/L，ρ(TiOSO4)（按TiO2计）为25~28g/L，水解时间为60min，水解温度为125℃时，TiOSO4的水解率可达95%以上，得到的偏钛酸呈球形且粒径为40nm。

Optimal technical conditions of preparing spherical nitroguanidine had been obtained by adopting uniform design experimentation, and the spheral nitroguanidine with higher bulk density had been prepared.

采用均匀设计法优选球形硝基胍制备工艺，可获得较大堆积密度的球形NQ。

The integrated comparison among ceria-coated, alumina-doped ceria-coated and ceria-yttria coated zirconia ceramics were analyzed by spheral coating model.

采用球体包裹模型对单一CeO〓液相包裹、Al〓O〓掺杂CeO〓液相包裹、CeO〓和Y〓O〓液相共包裹粉体制备的ZrO〓陶瓷进行了综合比较分析。

The calculated results indicate that a bifurcated A. wave can be formed when the shock passes through the flame, and pre-induced shock transmission in the flame leads to the formation of Mach stem, followed by spheral shock wave. The Rayleigh-Taylor and Kelvin-Helmholtz instabilities occurred in the flame induced by shock wave lead to the flame distortion and breakup.

计算结果表明，激波掠过火团时，分叉形成λ波；前引激波在火团内透射并在轴线处碰撞形成Mach杆，进而逐渐发展为球形激波；火焰在激波作用下先后出现Richtmyer-Meshkov不稳定和Helmholtz不稳定，火焰逐渐变形以致破碎；燃烧速率因此剧增。

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