查询词典 LS

The recompression phenomena have been found in the particle velocity histories of alumina specimens while the impact pressure between 7GPa-8GPa. From the point of view of phenomena, the recompression signals in terms of free surface particle velocity occurring in alumina ceramics under shock-loaded were similar to those in glass where failure wave has been widely verified.(4)The modified form for the Hugoniot Elastic Limit was given associated with

得到了A95陶瓷采用Drucker-Prager准则修正公式计算的σHEL值，并与实验得到的σHEL值进行了比较；(5)采用ANSYS/LS-DYNA有限元分析软件对冲击压缩下氧化铝陶瓷动态力学性能进行了模拟分析，数值模拟结果与实验结果吻合较好，数值模拟结果表明JH-2材料模型能够较好地模拟陶瓷的物理力学性能。

In the third chapter, we study mixed estimator of regression coefficients under prior information and compare it with least square estimator. The upper and lower bounds of three new relative efficiency are obtained.

第三章研究带附加信息的混合模型回归系数的估计，引入度量混合估计和LS估计差异的相对效率的新定义，并分别求出各个新相对效率的上、下界。

Second,a new estimator called generalized rootpower estimator of regression coefficients in growth curve model is obtained.For the newestimator,its superiority over the LS estimator and the root power estimator,and its admissibilityare proved.Two methods,two kinds of arithmetic of choosing the generalized root powerparameters are introduced.A demonstrative practical example is provided.

对增长曲线模型中的回归系数矩阵提出了一种新的估计——广义根方估计，并证明了通过广义根方偏参数的适当选取可使得该估计在均方误差和均方误差矩阵的意义下优于已有的最小二乘估计估计和根方估计；及证明了广义根方估计是可容许估计；还给出了选取广义根方偏参数的两种方法、算法和应用实例。

The used SVM kernel function can not approach to any object function in regression.

针对目前使用的SVM核函数在回归中不能逼近任意目标函数的问题，在支持向量机的核方法和小波框架理论的基础上，提出了LS-WSVM结构模型。

Based on the results of the previous Plackett-Burman design, four key factors was chosen, namely fermentation time, whey powder, saccharose and sodium acetate.

在使用Plackett-Burman设计试验的基础上，筛选出发酵时间、乳清粉、蔗糖和乙酸钠为鼠李糖乳杆菌Ls-8菌株发酵产抑真菌活性物质的4个关键影响因子。

Ichthyus sapien, ls that really you?

鱼人 真的是你吗

A wet chemical method was cidopted to introduce alumina sol to surface-modification of alumina bubble and in-situ decomposition characteristics, distribution of alumina sol, mi-crostructure and mechanical properties of surface-modified alumina bubble were studied by SEM, XRD, Coulter LS Particle Size Analyzer and self-preparation experimental device for measurement of compressive resistance.

采用湿化学的方式引入铝胶对氧化铝空心球进行表面修饰改性；采用SEM、XRD、激光粒度仪和自制耐压装置研究铝胶分解特性、分布状态、氧化铝空心球表面改性前后显微结构及力学强度变化。

These crowns are quite old, 25 years or more, and possibly base ls, or semi-precious at the least.

这些烤瓷冠可能是贱金属的，或者半贵金属的，使用了至少25年。

Objective To evaluate the operation of laparoscopic splenectomy, its safety and clinical effects.

目的 探讨腹腔镜脾切除术(laparoscopic splenectomy， LS)的手术方法、安全性及临床效果。

Meta ls of low electrical resistence will be different to spot weld, whereas those of high resistance,such as stainless will produce a spot weld readily.

所输送的焊条在焊点处熔化，低电阻的金属很难应用点焊，而高电阻的，比如说不锈钢，能够很容易地产生点焊。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。