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在"英语"词典里group velocity}的意思

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英语中GROUP VELOCITY的发音

group velocity  [ɡruːp vɪˈlɒsətɪ] play
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GROUP VELOCITY的语法类别

noun
形容词
动词
副词
代词
介词
连词
限定词
感叹词

GROUP VELOCITY在英语中的意思是什么?

点击查看«group velocity»在英语词典里的原始定义
点击查看在中文词典里此定义的自动翻译

组速度

Group velocity

波的组速度是波幅的整体形状(称为波的调制或包络)通过空间传播的速度。 例如,想象一下,如果一块石头被扔进一个非常静止的池塘的中间,会发生什么。 当石头撞到水面时,会出现圆形的波浪图案。 它很快就变成了一个带有静止中心的波浪的圆形环。 波浪不断扩大的是波群,其中可以辨别出以不同速度行进的不同波长的各个小波。 较长的波浪比整个团队的旅行速度更快,但是当他们接近前沿时,它们会消失。 较短的波浪越来越慢,当它们从组的尾随边界出现时,它们就会死亡。 The group velocity of a wave is the velocity with which the overall shape of the waves' amplitudes — known as the modulation or envelope of the wave — propagates through space. For example, imagine what happens if a stone is thrown into the middle of a very still pond. When the stone hits the surface of the water, a circular pattern of waves appears. It soon turns into a circular ring of waves with a quiescent center. The ever expanding ring of waves is the wave group, within which one can discern individual wavelets of differing wavelengths traveling at different speeds. The longer waves travel faster than the group as a whole, but they die out as they approach the leading edge. The shorter waves travel more slowly and they die out as they emerge from the trailing boundary of the group.

点击查看«group velocity»在英语词典里的原始定义
点击查看在中文词典里此定义的自动翻译

GROUP VELOCITY押韵的英语 单词


anelasticity
ˌænɪlæsˈtɪsətɪ
antiuniversity
ˌæntɪˌjuːnɪˈvɜːsətɪ
ethnocentricity
ˌɛθnəʊsɛnˈtrɪsətɪ
high-velocity
ˌhaɪvɪˈlɒsətɪ
hyperviscosity
ˌhaɪpəvɪsˈkɒsətɪ
lysogenicity
ˌlaɪsəʊˈdʒəˈnɪsətɪ
neurotoxicity
ˌnjʊərəʊˌtɒkˈsɪsətɪ
nonuniversity
ˌnɒnˌjuːnɪˈvɜːsətɪ
obesity
əʊˈbiːsətɪ
ototoxicity
ˌəʊtəʊtɒkˈsɪsətɪ
phototoxicity
ˌfəʊtəʊtɒkˈsɪsətɪ
phytotoxicity
ˌfaɪtəʊtɒkˈsɪsətɪ
preuniversity
ˌpriːjuːnɪˈvɜːsətɪ
tenacity
tɪˈnæsətɪ
unveracity
ˌʌnvəˈræsətɪ
virtuosity
ˌvɜːtʃʊˈɒsətɪ

GROUP VELOCITY一样开头的英语单词

group captain
group dynamics
group insurance
group marriage
Group of Eight
Group of Five
Group of Seven
Group of Seventy-Seven
Group of Ten
Group of Three
Group of Twenty Finance Ministers and Central Bank Governors
Group of Twenty-Four
group practice
group sex
group speed
group theory
group therapist
group therapy
group work
groupable

GROUP VELOCITY一样开头的英语单词

angular velocity
atrocity
capacity
city
electricity
escape velocity
ethnicity
ferocity
hypervelocity
irreciprocity
muzzle velocity
orbital velocity
phase velocity
precocity
radial velocity
reciprocity
simplicity
terminal velocity
velocity
wave velocity

英语近义词词典里group velocity的近义词和反义词

近义词

«group velocity»的25种语言翻译

翻译者
online translator

GROUP VELOCITY的翻译

通过我们的英语多语言翻译器,找到group velocity25种语言翻译
该章节所呈现的将group velocity由 英语向其他语言的翻译是通过自动统计翻译获得的;在英语中基本的翻译单位是单词«group velocity»。

翻译者英语 - 中文

群速度
1,325 数百万发言者

翻译者英语 - 西班牙语

velocidad de grupo
570 数百万发言者

英语

group velocity
510 数百万发言者

翻译者英语 - 印地语

समूह वेग
380 数百万发言者
ar

翻译者英语 - 阿拉伯语

مجموعة سرعة
280 数百万发言者

翻译者英语 - 俄语

групповая скорость
278 数百万发言者

翻译者英语 - 葡萄牙语

velocidade de grupo
270 数百万发言者

翻译者英语 - 孟加拉语

গ্রুপ বেগ
260 数百万发言者

翻译者英语 - 法语

vitesse de groupe
220 数百万发言者

翻译者英语 - 马来语

Halaju kumpulan
190 数百万发言者

翻译者英语 - 德语

Gruppengeschwindigkeit
180 数百万发言者

翻译者英语 - 日语

群速度
130 数百万发言者

翻译者英语 - 韩语

군속도
85 数百万发言者

翻译者英语 - 印尼爪哇语

Kecepatan kelompok
85 数百万发言者
vi

翻译者英语 - 越南语

vận tốc nhóm
80 数百万发言者

翻译者英语 - 泰米尔语

குழு வேகம்
75 数百万发言者

翻译者英语 - 马拉地语

गट गती
75 数百万发言者

翻译者英语 - 土耳其语

Grup hızı
70 数百万发言者

翻译者英语 - 意大利语

velocità di gruppo
65 数百万发言者

翻译者英语 - 波兰语

prędkość grupowa
50 数百万发言者

翻译者英语 - 乌克兰语

групова швидкість
40 数百万发言者

翻译者英语 - 罗马尼亚语

viteza de grup
30 数百万发言者
el

翻译者英语 - 希腊语

ταχύτητα ομάδας
15 数百万发言者
af

翻译者英语 - 布尔语(南非荷兰语)

groepsnelheid
14 数百万发言者
sv

翻译者英语 - 瑞典语

grupphastighet
10 数百万发言者
no

翻译者英语 - 挪威语

gruppehastighet
5 数百万发言者

group velocity的使用趋势

趋势

词语 «GROUP VELOCITY»的使用趋势

0
100%
频率
经常使用
64
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此处所显示的地图给出了词语«group velocity»在不同国家的使用频率。
group velocity的主要搜索趋势和常见用法
用户为查找我们的英语在线词典以及单词«group velocity»的最常用表达而进行的主要搜索的列表。

词语«GROUP VELOCITY» 随时间而变化的使用频率

该图表展现了单词«group velocity»在过去500年中的用法频率的每年演化其实施是基于分析词语«group velocity»从1500年到现在在 英语数字出版物中出现的频率。

group velocity的英语文献、引用和新闻中的使用范例

示例

«GROUP VELOCITY»相关的英语书籍

在以下的参考文献中发现group velocity的用法。与group velocity相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Group velocity in a multi-dimensional space
Phase and group velocities of isotropic and anisotropic waves are expressed analytically by the frequency-wave number vector relations and graphically with frequency curves for a multiple-dimensional space.
Takashi Ichiye, 1973
2
Scattering, Two-Volume Set: Scattering and Inverse ...
The direction of the group velocity U = V^co is given by the solid arrows. V*=n 1 + -Vi. dk k (75) where Vi is the component of the gradient perpendicular to the direction of propagation. Using spherical coordinates in wave-number space, the  ...
E R Pike, E. R. Pike, Pierre C. Sabatier, Pierre Celestin Sabatier, 2001
3
Cold Plasma Waves
The variation of the magnitude of the group velocity with frequency is discussed in Section 8.4 for longitudinal propagation, and in Section 11.4 for transverse propagation. The behaviour of the magnitude of the group velocity is treated in ...
H.G. Booker, 1984
4
The Solid Earth: An Introduction to Global Geophysics
The group velocity of surface waves is the velocity at which surface-wave energy of a given frequency travels. It is a constant for a given frequency. Therefore on Fig. 4.5(a) straight lines passing through the origin mark the surface-wave signal  ...
C. M. R. Fowler, 2005
5
Supercontinuum Generation in Optical Fibers
Calculated group-velocity profiles for the five fibres listed in Table 7.1. For each fibre the vertical lines indicate the experimentally measured location of a strong peak on the short-wavelength side of the output supercontinuum spectrum.
J. M. Dudley, J. R. Taylor, 2010
6
Slow Light Photonic Crystal Line-defect Waveguides
The group velocity of the gap guided mode is a function of structural parameters. It can even have different sign as shown in Fig. 3.1 by even.a and even.b modes. In the presented waveguide the folded branch of index guided mode has ...
Alexander Petrov, 2008
7
Coherence and Quantum Optics VIII: Proceedings of the ...
Superluminal light pulse propagation is observed at a negative group velocity of - c/315 through an atomic medium with little pulse distortion. Experimentally, a pulse propagating through the atomic vapor cell has its peak reaching the exit side ...
N.P. Bigelow, J.H. Eberly, C.R. Stroud Jr., 2004
8
Fast Light, Slow Light and Left-Handed Light
The concept of group velocity was evidently first introduced by William Rowan Hamilton in 1839 [17]. John Scott Russell, in his paper reporting the first observation of soliton water waves in 1844 [18], may also have been the first to observe ...
P.W. Milonni, 2004
9
Time and Matter: Venice, Italy, 11-17 August 2002 : ...
Experimentally, a light pulse propagating through the atomic vapor cell has its peak reaching the exit side before entering it, resulting in a negative transit time, and negative group velocity. We further review a recently proposed operational ...
‎2006
10
Electromagnetic and Optical Pulse Propagation 2: Temporal ...
The. Group. Velocity. Approximation. Because of its mathematical simplicity and direct physical interpretation, the group velocity approximation has gained widespread use in the physics, engineering, and mathematical science communitites.
Kurt E. Oughstun, 2009

包含词语«GROUP VELOCITY»的新条目

找出国内和国际出版社所讨论的内容,以及词语group velocity在以下新条目的上下文中是如何使用的。
1
Fiber guiding at the Dirac frequency beyond photonic bandgaps
... Dirac equation for relativistic particles: −ivD(σx∂x+σy∂y)Ψ=(ω−ωD)Ψ, where vD is the group velocity, ωD/2π is the Dirac frequency, σx and ... «Nature.com, 六月 15»
2
Ultrafast Dispersing Prisms
The LaKL21 model features a group velocity dispersion (GDV) of 600 fs2/cm. An SF10 model features a GDV of 1600 fs2/cm, while a UV fused ... «Photonics.com, 五月 15»
3
Atomic gas puts the brakes on light in optical fibres
... not the light's photons that are slowed but rather the envelope of their collective wave, which is represented by the photons' "group velocity". «physicsworld.com, 五月 15»
4
Femtosecond Pulses: Control Is Key to New Discoveries
This is known as positive group velocity dispersion (GVD). “So the laser pulses are often pre-chirped with negative GVD before they leave the laser head, ... «Photonics.com, 五月 15»
5
Focusing ultrashort laser pulses with achromatic doublets
The three effects that can increase pulse duration and spot size, and thus cause pulse intensity to decrease, are group velocity dispersion ... «SPIE Newsroom, 五月 15»
6
Lasers for Microscopy Major Trends
Moreover, this new OPO ensures shorter pulse width at the sample by means of a built-in group velocity dispersion precompensator. This is factory set to offset ... «Photonics.com, 四月 15»
7
Hollow-core photonic crystal fibers for high-power, ultrafast lasers
IC Kagome HC-PCFs exhibit outstanding guidance and delivery properties, low waveguide dispersion, and anomalous group velocity ... «SPIE Newsroom, 三月 15»
8
Ultrabroadband mid-IR frequency combs show promise for standoff …
... by using special 'chirped' dielectric mirrors in the OPO resonator, enabling compensation of group velocity variation over the whole spectrum. «SPIE Newsroom, 三月 15»
9
Diverse Applications Drive Lasers for Multiphoton Microscopy
With pulse-width options shorter than 75 fs and optional variable group velocity dispersion precompensation, Ti:S lasers deliver both the ... «Photonics.com, 三月 15»
10
GATE ECE/EC Answer Key 2015 Download -1st February 2015 …
Wave equation, Poynting vector. Plane waves: propagation through various media; reflection and refraction; phase and group velocity; skin ... «All India Roundup, 一月 15»

参考文献
« EDUCALINGO. Group velocity [在线]. 可用 <https://educalingo.com/zh/dic-en/group-velocity>. 五月 2024 ».
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