查询词典 rational fractional function

A method based on fractional Talbot effect is studied for single-shot measurement of laser-induced damage threshold.

介绍了一种基于分数泰伯效应的单脉冲激光损伤阈值测量方法。

By means of a nonlinear alternative theorem of Leray-Schauder type and Guo-Krasnoselskiis fixed point theorem in a cone, we establish the existence theorem of a positive solution to a singular coupled system of nonlinear fractional differential equations.

借助于锥上的非线性Leray-Schauder择一型定理和郭-Krasnoselskiis不动点定理，我们建立了非线性奇异耦合分数次微分方程组正解的存在性定理。

By means of a nonlinear alternative theorem of Leray-Schauder type and Guo-Krasnoselskii's fixed point theorem in a cone, we establish the existence theorem of a positive solution to a singular coupled system of nonlinear fractional differential equations.

借助于锥上的非线性Leray-Schauder择一型定理和郭-Krasnoselskii's不动点定理，我们建立了非线性奇异耦合分数次微分方程组正解的存在性定理。

ABSTRACT Some of the problems raised from the H〓 control theory and its applications are studied deeply in this dissertation. They are system model description in robust design problems---linear fractional transformation, singular H〓 problem which occurs when some of the conditions of the standard H〓 problem are not met, and the quadratic stabilization problem is studied from the point of H〓/μ synthesis.

本论文对H〓控制理论及应用中的一些问题进行了深入的研究，着重解决了鲁棒设计问题中的系统模型描述---线性分式变换，以及当H〓标准问题的某些条件得不到满足时所出现的奇异H〓问题。

In this study,two Landsat TM images of Xiamen city were used to evaluate soil moisture of the city for the years of 1989 and 1996.The extraction of the moisture was based on a spectral feature space composed of fractional vegetation cover and land surface temperature.

利用1989年和1996年两个时相Landsat TM遥感卫星影像来获取厦门的植被覆盖度和地表温度，并由此构建了植被覆盖度和地表温度组成的特征空间，最后利用该特征空间反演了土壤湿度，并分析湿度在两个时相中的变化情况。

The sporophore of Cordyceps militaris and the cordycepin content of intermediate products were monitored in the whole course according to the relation between fixed and mobile phases of solvents in a combination system of binary and quaternary solvents, in which the applied methods were successively supercritical fluid extraction, alcohol sedimentation, low-pressure normal-phase silica-gel chromatography, reversed-phase high-performance liquid chromatography and fractional crystallization.

根据溶剂的固定相与流动相之间的相对关系，采用了二元和四元组合的溶剂系统，顺次采用超临界流体萃取法、醇沉法、低压正相硅胶色谱法、反相高效制备液相色谱法、分步结晶法和反相高效液相色谱法，子实体及其中间产物中的虫草素含量变化情况。

In this paper , we combine both Efficient Market Hypothesis and Fractal Market Hypothesis to test our bond markets return distribution , the main results are that the index of Chinese bond market process by fractional Brownian Motion, the orbit is stable Pareto Distribution with α character So, the fractal market hypothesis is more suitable than the efficient market hypothesise

本文结合有效市场假说与分形市场假说理论，通过对我国证券市场中收益率的分布收入研究发现：中国股票市场是以分数布朗运动方式进行的，所形成的运动轨迹呈现出典型的α＜2的稳定帕雷托分布。因此，应该说，"分性市场假说"比"有效市场假说"更适用于中国股票市场。

The first stage is screen experiment. A 24-1 Fractional Factorial Design and resolution IV experiment is used to find out which main effect and interaction effect have obvious influence on the precision positioning of feeding table by these four factors. The Minitab program including Half Normal Plot, Pareto Chart, and ANOVA is applied to diagnose obvious effects. The second stage is optimization experiment. The fitness of regression model is obtained by using CCD of RSM with statistical hypothesis testing, regression analysis, lack-of-fit testing, and residual analysis. The optimum values can be found out by using response surface plot and contour plot.

在第一阶段为筛选实验采用24-1部分因子实验，解析度为IV，求出这4个因子主效应及交互作用哪些会对进给平台定位精度有显著的影响，在分析方面使用统计软体Minitab做初步分析，应用了半常态机率图、柏拉图与变异数分析来判断出显著因子与交互效应显著，第二阶段优化实验采用反应曲面法的中央合成设计，搭配统计检定、回归分析、缺适性检定(Lack-of-Fit)、残差分析来取决回归模式之合适性，最后根据反应曲面图及等高线图求出最佳值做验证实验。

However, if the steepness is set to a low value, it is easier to train an ANN that requires fractional output, like e.g., an ANN that should be trained to find the direction of a line in an image.

但是，如果陡峭设置为一个低价值，更容易培养的神经网络，需要小数输出，像例如，一个应接受培训，以找到一个图像中的人工神经网络的方向一致。

Then we give some premiliaries, including stochastic integration for fractional Brownian motion, parameter estimates in the fraction...

第三章是本文的主要部分，给出了分数O-U过程中参数估计的大偏差，并且给出了证明。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。