In this paper we discuss the spiral structure of dish galaxies in three-dimension according to the density wave theory.
本文从密度波理论出发，讨论三维盘状星系的旋臂结构。
Doping can excite a charge density wave weakening the spin density wave against the stability of the ferromagnetic state.
掺杂能激发电荷密度波，从而削弱了自旋密度波，最终不利于铁磁态的稳定。
The following conclusions are obtained: 1. the density wave in an unstable area develops a finite continuous oscillation.
得到如下一些重要结论：1。不稳定区域密度波振荡为有限的持续振荡。
Two ideas are worth notice in the adiabatic scenario (assumed that the initial perturbations are adiabatic) : 1. The idea of the cosmic density wave.
在绝热密度扰动(假定初始扰动是绝热的)的方案中，有两种观念特别值得注意：1，宇宙密度波的观念。
It is generally assumed the solution of galactic shock wave is local one and takes no account of gaseous self-gravitation in the theory of density wave.
密度波理论中星系激波的解大都假设为局部的，并且往往不考虑星际气体自引力的影响。
We also obtain the variation of the radial dispersion of velocities with r through the stability of the density wave in three-dimensional dishlike galaxies.
同时，从三维盘状星系密度波的稳定性讨论推出了径向速度弥散度的变化规律。
The colliding galaxies would have created a powerful density wave that would have swept out the material into an expanding ring, stimulating star formation.
碰撞的两个星系产生了强烈的密度波，把物质推到外侧的环形上，并激发了恒星的形成。
The paper introduces the present knowledge of the theory and technology of diffusion photon density wave (DPDW) which have been focus of the recent research.
本文介绍了目前生物医学光子学领域内引人注目的新技术—扩散光子密度波技术的理论基础、 系统及国内外的最新进展。
The frequency-domain NIRS instruments modulate the light with a RF sine wave, which generates diffuse photon density wave (DPDW) in turbid tissue like brain.
频域近红外光谱系统利用一个高频正弦信号对光源进行调制，从而在大脑这类强散射介质中形成一种漫射光子密度波。
It is shown that the flow instability with high frequency belongs to acoustic oscillation and the flow instability with low frequency is density wave instability.
高频脉动属于声波型脉动，低频脉动属于密度波型脉动。
By increasing the inertia of riser in the core outlet, the compressible density wave oscillation can be suppressed effectively and the system stability can be enhanced.
加大堆芯出口水力提升段的质量惯性能有效地抑制可压缩性密度波振荡，提高系统的稳定性。
"If it is true that the pseudogap is a charge-density wave, that would be a major, major outcome because people have been looking for this for the past decade," he said.
“如果赝隙真的是电荷密度波，那将是一个非常非常重大的发现。因为人们在过去几十年里都在寻求这个问题的答案。”他说。
This paper describes the experimental study of two phase density wave oscillation in natural circulation loop. The oscillation curves under different conditions are obtained.
在自然循环水回路上进行了两相流密度波不稳定性的实验研究，得到了不同工况下的实时脉动曲线。
Based on the nonlinear equations of the theory of density wave, the evolutionary direction and the observable conditions on spiral galaxies may be derived by the qualitative analysis theory.
基于密度波理论的非线性方程，用定性分析理论可导出旋涡星系的演化方向和由观测可得到的演化条件。
This wave of excess density is sound.
这种过剩密度的波就是声波。
So again if we look at this in terms of its physical interpretation or probability density, what we need to do is square the wave function.
如果我们从物理意义或者,概率密度的角度来看这个问题，我们需要把波函数平方。
So if we're talking about probability density that's the wave function squared.
如果我们要讨论概率密度，这是波函数的平方。
Depending on wave height and speed, as well as wavelength and water density, each buoy can produce up to 40 kilowatts of electricity.
每一个浮标最高可以产生高达40千瓦的电力，发电的多少依赖于海浪的高度以及速度，同样也依赖于海浪的波长以及海水的密度。
So again, we can think about the probability density in terms of squaring the wave function.
同样的，我们可以把，波函数平方考虑概率密度。
So, that's probability density, but in terms of thinking about it in terms of actual solutions to the wave function, let's take a little bit of a step back here.
这就是概率密度，但作为，把它当成是，波函数的解，让我们先倒回来一点。
Electroplating working conditions is to point to the operation of the when electroplating changes factors, including: current density, temperature, mixing and power of the wave, etc.
电镀工作条件是指电镀时的操作变化因素，包括：电流密度、温度、搅拌和电源的波形等。
In the case of high density, the plasma was heated greatly by the lower hybrid wave (LHW).
在高密度条件下，发现了低混杂波对离子的大幅度加热。
The results show that there exists a density window for lower hybrid wave current drive (LHCD), i. e, LHCD would be achieved only within a certain range of plasma density.
结果表明，存在着驱动电流的密度窗口，即仅在一定的等离子体密度范围内才能驱动电流(通常在理论和实验上仅注意到驱动电流的密度上限)。
Objective To elucidate the effects of high powered density millimeter wave irradiation on immune function of rats.
目的观察高功率密度毫米波照射对大鼠免疫功能的影响。
The square modulus of the wave function is proportional to the probability density of finding the system at each point in the configuration space.
波函数的模平方正比于体系处在其位形空间各个点的几率密度。
If intermittent small scale breaking is occurring, the average energy density is limited by conditions near the long wave crests.
如果间歇性的小尺度破碎正在发生，平均能量密度就要受到长波波峰附近状况的限制。
The wave function and probability density are obtained by the creation and annihilation operators of the invariant operator.
通过不变量算子的产生和湮灭算符，得到波函数和几率密度。
The effect of plasma thickness, wave frequency, electron number density distribution on it is almost independent of the wave polarizing direction.
等离子体厚度、入射波频率、电子数密度分布对功率反射系数的影响几乎与波的极化方向无关。
The coherence bandwidth of shortwave channel is calculated by using the density profile and wave propagation features in ionosphere.
从该电子密度模式和电离层波传播特性出发确定多径分量，计算短波信道相干带宽。
The coherence bandwidth of shortwave channel is calculated by using the density profile and wave propagation features in ionosphere.
从该电子密度模式和电离层波传播特性出发确定多径分量，计算短波信道相干带宽。
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