查询词典 sampling interval

This paper selects futures contracts of copper in SHFE, hard wheat in ZCE and soybean in DCE as samples and,by means of principle of maximum entropy,generalized extreme value distribution and K-S goodness-of-fit test, makes an empirical study on the characteristics of statistic distribution of time interval between extreme volatilities of return rate series of commodity futures in China.

本文基于极值理论，以沪铜、大连大豆和郑州硬麦期货为研究对象，应用最大信息熵原理、广义极值分布和K－S拟合检验，实证分析了我国商品期货收益率极端波动的时间间隔的统计分布特征。

Interval estimation problem of sample extremes is not yet solved in classic extreme value theory.

传统的极值理论尚未很好地解决一组样本的极大值和极小值的区间估计问题。

As for the factitiously specified allowable values,such as allowable deflection,allowable amount of wear,and so on,their magnitudes,which are confirmed on the basis of empirical formula,often have an interval value or a limit value,therefore they can be described suitably by minor type membership function, As for various strength values of parts,such as tensile strength,compression strength,contact strength and so on,their magnitudes,which are often confirmed only by approximate mean,can be described suitably with middle type membership function.

对于人为规定的各种许用值，如许用挠度值、许用磨损量等，根据经验公式确定它们的大小时往往有一个区间或一个极限值，宜用偏小型隶属函数描述，对于零件的各种强度值，如抗拉强度、抗压强度、接触强度等，实际中往往只能确定其近似的均值，宜用中间型隶属函数描述。

Takingthe contact stress, bend stress stiffness and temperature stress as thecondition, taking the weight of the kiln tyre as optimization aim function, theredia and the width of the tyre are optimized General optimize methods justconsider the affecting of the parameters to aim function, but in fact,structural parameters(such as structure dimension, interval and so on),physics and dynamics (damp factor, conduct factor, friction factor material'selastic module strength limits and so on), which would be changed afterused.

一般的优化方法，仅仅考虑了参数对其目标函数的影响，而实际情况下有些参数是变化的，产品的结构参数、物理和力学参数如阻尼系数、传导系数、磨擦系数、材料的弹性模量和强度极限等的设计值与制造后和使用中的实际值会有差异，这种差异称为设计变量和噪声因素的变差。

Firstly, for a class of n-dimensional factorable functions, an interval examined method, i.

这些区间扩张的计算为研究全局优化区间算法奠定了基础。

The method is phase shifting with four any steps in a facultative interval.

这种方法采用步距任意的四步步进移相，并结合分组处理方式来求得所需参数。

In the third chapter,the interval static FEM is set up.

第三章，建立了区间参数结构分析的静态有限元方法。

Firstly an approximate linear model was obtained by confining the regression function in a functional space with finite dimension. Then the interval estimator was proposed by Fiducial inference.

首先将回归函数限制在一个有限维函数空间中，得到一个近似的线性模型，在此基础上，由Fiducial推断给出了误差方差的区间估计。

Fifthly, this paper provides a method of the combination of interval structures.

提出了区间结构的组合方法。

How to reduce the energy consume so that the quality of the interceptor would be reduced and enhanced the final velocity and average velocity are the key technology of the system scheme for LRADI. Aimed at the character of the LRADI, analysis and study the questions of adoption"interval time can be changed double pulse Solid Rocket Motor"and"double high cast virtual target composition guidance trajectory".

因此如何降低能量的消耗、减轻拦截器的重量，提高末速度和平均速度成为远程反空气动力目标拦截器总体方案的一个重要关键技术，本文针对远程反空气动力目标拦截器的特点，提出和论证了采用"间隔时间可调的双脉冲固体火箭发动机"和"双高抛虚拟目标复合导引飞行弹道"两条新技术途径相关的各种问题。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。