查询词典 ramification exponent

Environment radon is mainly from rock and soil in geological environment, but the research is not connected with geological environment now. On the basis of physical field, the theoretical distribution model of radon in soil and exchange model of earth—air are set up by using Fick diffusion law and Dacy law, and then the research of environment radon is linked with geological environment. This paper described how the evry parameter of the theoretical model influence the radon concentration in air. The results of research indicat that molecule diffusion of radon is different from it's eddy form. Under the condition of surface radon source, the model experiment is used to study the transportation and distribution of radon in medium. The data of experiment show the relationship between radon and depth can be described by exponent. If the radioelement is well—distributtion, the concentration of radon in different depth or in different point at the same depth change with time, but the accumulated exhalation amount of radon at different point on the surface of model are close in relative long time. The author studied the exchange of radon between mediums and verified the theoretical models too.

环境氡主要来自岩石、土壤，而目前环境氡研究中与地质环境结合很少，为此作者以物理场为基础，运用气体运移的费克扩散定律和达西定律，建立起壤中氡浓度分布与大地—大气间氡交换理论模型，首次在理论上将环境氡与地质环境结合起来；论文中从理论上讨论了模型中各参数对空气中氡浓度的影响，发现空气中氡运移的分子扩散方式和湍流扩散方式存在明显差异；通过面状氡源条件下的氡运移模型实验，研究了介质中氡的运移与分布，实验数据表明氡浓度随深度的变化规律可用指数函数描述，在放射性元素分布均匀的条件下，介质中不同深度和同一深度不同点的氡浓度随时间而变，但介质表面不同点在较长时间内向空气中累计释放的氡的量是相近的；同时研究了不同介质间氡的交换，并验证了所建立的理论模型；运用理论模型预测青岛市城区壤中氡浓度、江西临川一住宅区空气中氡浓度及江西二个测区的区域空气中氡浓度分布，取得了较好的效果。

On the basis of methods of feedback linearization and compound Lyapunov, the author puts forward a sort of robust output track control rule with a regulable parameter. This rule not only guarantees the system exponent output track but also makes the closed loop system have limited states.

基于反馈线性化方法和复合Lyapunov方法，作者提出了一种具有可调参数的鲁棒输出跟踪控制律，不仅可以保证系统指数输出跟踪，而且闭环系统状态有界。

In the literature, the stress exponent n is mostly reliable and with high recurrence rate, the activation energy Q is, in some extent, reiterative, however, the coefficient A is poorly reiterative .

文献中给出的流变参数中，应力指数n的可靠性高，具有良好的重复性，激活能Q在一定范围内具有重复性，而系数A重复性差。

The depth of central-axis percent dose Rx (except R100) and practical range, Rp, for small field electron beams can be calculated by the proposed empirical formula: Rx = Rxo ×,where Rxo R po are the broad beam percentage dose depth and practical range respectively; r is the small field cutout side when it is less than the maximum lateral scatter equivalent range, and m is he exponent term relative to the decreasing curvature.

小照野电子射束中心轴百分剂量深度，Rx（R100除外），及穿透深度，Rp，可以用本文提出的经验公式：Rx = Rxo×计算求得，其中Rxo及 Rpo分别为宽射束百分剂量深度及实际穿透深度；r为边长小於最大侧散射等效范围的小照野边长；m值为与下降曲度有关的指数项。

Factoring assignments do early elimination work, and always have a to the right of the exponent.

分解因子任务完成早期的排除工作，总是在指数右边带有一个标志。

A Mersenne Prime appears with a to the right of the exponent.

当一个梅森素数出现时，指数右边带有一个标志。

Double-check assignments are identical to Lucas-Lehmer assignments, however a also appears to the right of the exponent.

复查(double-check)任务和 Lucas-Lehmer 任务一样，除了在指数右边出现一个标志外。

Using DRG,we solved the KPZequation satisfy conservation law and long-range spatial and long-timecorrelation,the roughen and dynamic exponent was found,the roughentransition was also discussed.

本文利用动力重整化群方法研究了具有长程空间相关和长程时间、空间相关条件下的满足守恒律的生长方程，得到了粗化和动力学标度指数，并讨论了长程时空相关对生长表面粗化的影响[36，34]。

The round-trip time delay of different distance, time and packet size is gathered to obtain a statistical model of Internet communication line. Results of the data show the round-trip time delay of Internet approximately belongs to one of the exponent, al, normal or logarithm-normal distribution.

通过对不同传输距离、传输时间段与数据包大小等条件下传输时延的统计得出Internet通讯模块的双向传输时延近似符合指数、正态或对数正态分布中的统计模型。

Results of analysis show that Generalized Paris Law can consider the complex crack propagation in the material of the pavement structure. The fatigue life of the pavement increases with increasing thickness of surface layer in a power function. Use of a thicker surface layer may extend the service life of the asphalt pavement. The fatigue life increases with decreasing modulus of surface layer in a power function with a negative exponent. However, since reduced modulus would scarify the structural strength and might cause rutting-related distress, caution should be taken when using low modulus materials for improving fatigue performance of asphalt pavements. The fatigue life increases with increasing modulus of base material in a power function. However, the fatigue life can not infinitely increases with increasing modulus of the base.

计算与分析表明：广义Paris公式可以考虑沥青路面结构内材料复杂的裂缝扩展：沥青面层的疲劳寿命随着面层厚度的增加以幂函数的形式增加，适当增加沥青面层厚度可以提高路面的使用寿命；沥青面层的疲劳寿命随着面层材料模量的降低以负指数的幂函数形式增加；由于材料模量的降低将牺牲路面的整体强度并可能引起路面车辙类损坏，以此提高疲劳寿命的方法应慎重对待；沥青面层的疲劳寿命随着基层材料模量的增加呈幂函数的形式增加，但由疲劳方程可以看出，寿命并不是随基层材料模量的增加而无限的增加，疲劳曲线在经过一个上升段后，逐渐趋于一个常数值，这说明，这时基层模量对寿命已不作关键性贡献；随着底基层厚度的增加，面层的疲劳寿命近似地呈线性函数增加，但效果并不很明显。

Yet, Edith says, there was always money in the bank.

但是Edith说，她的银行户口里面总是有钱。

We have created a series of files that resolve this problem--one for each day of the 40 days of purpose.

我们制作一系列的档案去解决这问题---一个为标竿40天中的每一天。