表面电磁振荡激元波(SPW)谐振是金属膜参数及其表面状态的十分灵敏的函数。
The surface plasma waves (SPW) resonance is a sensitive function of the optical constants of metallic films and their surface conditions.
本文提出一种以长程表面电磁激元波作为泵波,在非线性介质膜中实现简并四波混频的新方案。
We propose a new method to realize degenerate four-wave-mixing in nonlinear optical thin films using long-range surface-plasmons-wave as pumps.
如果双黑洞结合在一起,那么更强的引力波脉冲波将从这个双黑洞的二元体系辐射开来。
If the black holes in a binary system merge, then an even stronger pulse of gravitational waves radiates away from the system.
在物理学上最著名的二元性例子就是波粒二象性,这表明物同时具有波和粒两种属性。
The most famous duality in physics is the wave-particle duality. This one states that matter has both wave-like and particle-like properties.
亚特兰提斯人拥有超次元量子物理学的知识,并理解到可以使绕着圆柱晶体逆转之特定磁力场而创造出反引力波。
The Atlanteans had the knowledge of hyper-dimensional quantum physics and understood that counter rotating specific magnetic fields around cylindrical crystals created antigravity waves.
小波变换作为频率和时间的二元函数,使之可以很方便地在频率和时间域中同时进行地震波能量的吸收衰减补偿。
Wavelet transform involves the two-variate function of frequency and time, which makes it convenient to simultaneously compensate for attenuation of seismic energy in frequency and time domains.
提出了一种新的波元选取方法。
本文设计了一种实验方案,用高频表面波放电来激发等离子体,并分析了等离子体天线元的基本特性。
In this paper, we devise an experiment, using HF surface wave discharge to excite plasma, to analyze basic characteristics of plasma antenna elements.
用有限元方法分析了其反射相位特性及表面波传输特性。
The reflection phase property and surface wave dispersion are analyzed using finite element method.
与其他数值软件一样,用三维离散元程序(3dec)模拟应力波在节理岩体中的传播和衰减时,模型参数对模拟结果有很重要的影响。
Model parameters have the important effects on three-dimensional distinct element code (3dec) modeling of the stress wave propagation and attenuation in jointed rock masses as well as other codes.
有限元法用于分析波的传播问题已日益广泛,它可能达到的程度已成为现在十分关心的课题。
The finite element method has been widely used in analysing wave propagation problems. Which degree of accuracy such an analysis can be obtained?
利用有限元法,提出了一种应力波及变形波的计算方法,并对一些典型结构进行了运算。
A method is put forward for computing the stress and strain waves in the structures under impact and heat loads.
电传打字电报:国际性的直拨电话通信设施,它用电传打字机为终端机,以每秒50数元,传送波德代码,即每分钟600字。
Telex: An international dial-up communications service that uses teleprinters for terminals and transmits Baudot code at 50bits per second, or 600 words per minute.
波达方向估计是利用天线阵元对空间信源的来波方向进行估计。
DOA (direction of arrival) estimation is realized by using antenna array to estimate the arrival direction of space signal source.
其次,在2.5维空间,用有限元数值模拟方法模拟了裂隙各向异性介质波场,结果用波场切片做了显示。
Then, the finite element method is used for synthetic in 2.5d space anisotropic media containing cracks. The results are showed by time snapshot.
用有限元法做弹性波正演模型计算已进入实用阶段,但有限元法所要求的大存储量和计算速度慢的缺点依然存在。
Finite element method las been practically applied to the forward modeling of elastic wave. But its shortcomings, such as large storage needed and slow calculation, remain.
本论文主要从理论上讨论与研究强非线性极性晶体中电磁波和长光学波格波耦合形成的极化激元的特性。
The main topic of this dissertation is the properties of polaritons that result from the coupling between the electromagnetic wave and the lattice wave in polar crystals with strong nonlinearity.
该算法是对传统MUSIC方法的推广与变形,克服了要求接收信号数小于阵元数的局限,能有效估计时延不同、波达方向相差很小的多径信号的参数。
The algorithm is a development of traditional MUSIC algorithm, so the number of multipath signals can be most of the array elements and can be used to estimate the parameters of multipath signals.
跃迁矩阵元被表示为两项,当入射电子和散射电子近似为平面波时,跃迁矩阵元的第一项是一个发散的复数;
The first term of this transition matrix element is a divergent pluralism when the incident and scattered waves are chosen as plane wave.
在本文中,我们提出8种不同的全加器电路,分别皆使用4位元链波进位加法器将其实现。
We proposed 8 kinds of full adder and all of them are realized in 4 bit ripple carry adder.
在有限元模拟基础上,采用正交设计与最小二乘小波支持向量机对充液拉深过程参数优化进行了研究。
Orthogonal design and least squares wavelet support vector machine are integrated to optimize the technological parameters of hydro-mechanical deep drawing process using FEM.
中枢神经系统的细胞通过在神经元上传播的电信号波群来进行彼此的沟通。
Cells in the central nervous system tend to communicate with each other via a wave of electrical signals that travel along neurons.
小波理论为有限元方法提供了许多不同的基函数和多尺度分析方法,需要根据具体分析问题进行选择。
Wavelet theory provides various basis functions and multi-resolution methods for finite element method, which will be selected in solving different problems.
主要研究了热方程与波方程的非古典势对称群生成元及相应的群不变解。
Some nonclassical potential symmetry generators and group-invariant of heat equation and wave equation were determined.
利用简并四波混频(DFWM)方法测量二元分子卟啉酞菁的三阶非线性极化系数X(3)值。
The values of third-order susceptibilities X(3) of porphyrin-phthalocyanine heterodimers have been measured by degenerate four-wave mixing (DFWM) method.
目的观察兴奋和抑制海马神经元对慢波睡眠的影响。
Objective To investigate the effects of excitement and inhibition of hippocampal neurons on sleep and wakefulness.
目的观察兴奋和抑制海马神经元对慢波睡眠的影响。
Objective To investigate the effects of excitement and inhibition of hippocampal neurons on sleep and wakefulness.
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