查询词典 cubic

In this paper, an error concealment method was proposed based on cubic B-spline interpolation.

针对这一问题，提出了一种基于三次B样条插值的错误隐藏算法。

The company has imported nine cubic meters of concrete mixer truck 16 precincts and all kinds of equipment more than 30 sets of a total investment of 25,800,000 yuan, more than 200 employees.

公司拥有9立方米进口混凝土专用搅拌运输车16台及各类配套设备30多台套，总投资2580万元人民币，职工200多人。

In this thesis, two cubic nano-silver substrates with different shapes are prepared and their SERS effects are measured. The substrate which is composed of disperse nano-silver congeries has a good SERS effect.

本文应用已有的水热还原法制备出立方纳米银胶，并应用不同的方法制备出两种不同形貌的立方纳米银基底，通过SERS效应的检测，确定了当基底由分散的立方纳米银聚集体组成时，其拉曼增强效果较好。

The results showed that the crystal are body-centered-cubic, the particles are spherical with an average size of approximate 100 nm, and there is conglutination among the particles.

结果表明，制备的纳米铁微粒是体心立方晶系，颗粒呈球形，平均粒径100 nm，颗粒间呈粘连状。

Based on the equilibrium equation of an arch element the cubic nonlinear dynamic model with second order is established and the nonlinear differential dynamic system without constant term is obtained through a transfer process of T=U+b. Hence three fixed points and the homoclinic orbits are found. The critical condition of the chaotic vibration of the elastic arch is given by using the method of Melnikov function. The numerical results of the stationary and chaotic motion are given and discussed.

首先利用拱的单元平衡方程建立了拱的二阶三次非线性动力学模型；然后通过变换使方程转化为不含常数项的非线性微分动力系统，并由此得到无扰动系统的3个不动点与同宿轨道；再用Melnikov函数法给出了发生混沌的临界条件；最后给出了该系统出现定常运动和混沌运动的数值结果。

The volume of this container is 50 cubic meters.

这个容器的容量是50立方米。

The cubic interpolation polynomial is got firstly in the given sub-range of the hydrophone's sensitivity-frequency curve by using the Akima curve smoothed algorithm, and the maximum of the polynomial is calculated in the sub-range by using the one dimension extreme value continued fraction algorithm, finally the frequency of the hydrophone is got.

频率测试是在灵敏度详细测试的基础上，采用阿克玛曲线光滑算法求出检波器幅频特性曲线在给定子区间上的三次插值多项式，再利用一维极值连分式法求出该区间上多项式的极值，从而求出检波器的频率值。

Firstly, we prove that if we select nodes properly, and let the distance between these nodes sufficiently small, cubic polynomial spline can approximate a continuously differentiable function, which with continuous derivatives of second order and discontinuity of the first kind in the derivatives of fourth order, to any desirable accuracy. This result lays a theoretical foundation for representing trajectories by splines and double orthogonal basis.

一是证明了适当选取节点并使节点距充分小时，三次多项式样条可以逼近具有二次连续导数的分段四次连续可微函数到足够的精度，这一结论为用样条和双正交基表示弹道打下了理论基础。

We consider the cubic Hermite-Pade approximation and give the contour integral representations of coefficient polynomials.

研究了三次Hermite-Pade逼近系数多项式的围道积分表示，利用鞍点法得到了这些多项式的渐近估计。

By explore and correctitude examination, find out best preparation method condition and The spherical, monodispersed, ultrafine cobalt powder with a face centered cubic structure and a size less than 1um were synthesized.

经过探索试验和正交实验，确定了最佳工艺条件，制备出平均粒径小于1um，具有面心立方晶体结构且分散性较好的球形的超细钴粉。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。