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phase velocity

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phase velocity 相速(度)。

相速(度)。 “phase“ 中文翻譯：   n. 1.形勢，局面，狀態；階級。 2.方面，側面。 3 ...“velocity“ 中文翻譯：   n. 1.迅速；快速。 2.速度，速率。 3.周轉率。 ...“phase velocity and group velocity“ 中文翻譯：   相速和群速“apparent phase velocity“ 中文翻譯：   視相速度“guide phase velocity“ 中文翻譯：   波導相速度“linac with constant phase velocity“ 中文翻譯：   恒定相速直線加速器“phase front velocity“ 中文翻譯：   相前速度“phase velocity filtering“ 中文翻譯：   相速濾波“phase velocity of wave“ 中文翻譯：   波的相速度; 波相速度“rayleigh phase velocity“ 中文翻譯：   瑞利波相速度“slow phase velocity“ 中文翻譯：   慢相速度“velocity recovery phase“ 中文翻譯：   速度恢復期“wave phase velocity“ 中文翻譯：   波相速度“mean linear velocity of mobile phase“ 中文翻譯：   流動相平均線速“velocity“ 中文翻譯：   n. 1.迅速；快速。 2.速度，速率。 3.周轉率。 at a velocity of 100 miles per hour 用每小時一百英里的速度。 dart off with the velocity of a bird 像鳥一樣迅速飛跑過去。 drag-free velocity無阻力飛速，真空飛速。 escape velocity(克服地球引力的)第二宇宙速度，逃逸速度。 final velocity (發射物的)終速。 initial [muzzle] velocity(發射物的)初速[腔口速度]。 uniform [variable] velocity勻[變]速。 “in phase“ 中文翻譯：   同步同相相位一致的; 同相的; 同相地; 自旋相位“phase“ 中文翻譯：   n. 1.形勢，局面，狀態；階級。 2.方面，側面。 3.【天文學】(月等的)變相，盈虧；【物、天】相，周相，相位。 4.【動物；動物學】型，期。 a youthful phase 青年時期。 The problem has many phases. 這問題是多方面的。 phase distortion 【物理學】相畸變，周相畸變。 enter (up)on a new phase 進入一新的階段。 from phase to phase during this stage 這一階段中的各個時期。 in phase 【物理學】相同的[地]；同時協調的[地]。 out of phase 【物理學】異相的[地]，不同相；非同時協調的[地]。 vt. 1.使調整相位，使定相。 2.使分階段[按計劃]進行。 phase in 分階段引入，逐步采用。 phase out 1. 使逐步結束；使逐步撤出；逐步淘汰；逐部停止(活動等)。 2. (動作等的)逐步停止；逐步撤出。 3. 逐步轉入 (into)。 “phase in“ 中文翻譯：   引入投入啟用; 逐步采用, 分階段引入; 逐步到位“phase into“ 中文翻譯：   逐步投入“phase to“ 中文翻譯：   phase相間的; phase相位間的“phase-in“ 中文翻譯：   分階段引入; 啟用; 逐步引進; 逐漸采用“s phase“ 中文翻譯：   s期“t-phase“ 中文翻譯：   相位波“t-phase t“ 中文翻譯：   相位波; 震相“to phase in“ 中文翻譯：   逐步引進

The research on the rf characteristics of the conductor - centered helical groove sws . ( a ) in the “ cold “ system , we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency , the phase velocity and bandwidth are reduced slightly , the structure is more dispersive and the coupling impedance is enhanced 對具有中心導體軸的矩形螺旋槽慢波系統的高頻特性進行了理論研究： ( 1 )在冷系統中的研究結果表明：頻率較低時，槽深的改變對相速的影響不是很大，隨著頻率的增大相速略有減小，同時帶寬也有所減小，色散變得稍強，耦合阻抗增大。

We found the “ forward stimulated raman scattering “ will be excited if the pulse length is greater than plasma wave length . the “ forward stimulation raman scattering “ decreases the phase velocity and the amplitude of the wake wave which will lead to the reduction of maximum kinetic energy of the electrons trapped 結論是：當脈沖長度接近等離子體波長時，稀薄等離子體將發生“前向受激raman散射” ，它使脈沖后沿拉長，導致尾流場的相速度變小，以至于被尾流場“捕獲”的電子最大動能大大下降。

Based on new seismic code “ code for seismic design of buildings “ ( gb50011 - 2001 ) , a method of selecting parameters and equivalent phase velocity of the earthquake wave for multidimensional analysis is suggested 以最新發布的《建筑抗震設計規范》 ( gb50011 ? 2001 )為基礎，提出了地震動隨機模型參數的取值。此外，對考慮多點問題時地震波視波速的取值方法提出了建議。

The research on the rf characteristics of the conductor - centered helical groove sws . ( a ) in the “ cold “ system , we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency , the phase velocity and bandwidth are reduced slightly , the structure is more dispersive and the coupling impedance is enhanced 對具有中心導體軸的矩形螺旋槽慢波系統的高頻特性進行了理論研究： ( 1 )在冷系統中的研究結果表明：頻率較低時，槽深的改變對相速的影響不是很大，隨著頻率的增大相速略有減小，同時帶寬也有所減小，色散變得稍強，耦合阻抗增大。

We found the “ forward stimulated raman scattering “ will be excited if the pulse length is greater than plasma wave length . the “ forward stimulation raman scattering “ decreases the phase velocity and the amplitude of the wake wave which will lead to the reduction of maximum kinetic energy of the electrons trapped 結論是：當脈沖長度接近等離子體波長時，稀薄等離子體將發生“前向受激raman散射” ，它使脈沖后沿拉長，導致尾流場的相速度變小，以至于被尾流場“捕獲”的電子最大動能大大下降。

Based on new seismic code “ code for seismic design of buildings “ ( gb50011 - 2001 ) , a method of selecting parameters and equivalent phase velocity of the earthquake wave for multidimensional analysis is suggested 以最新發布的《建筑抗震設計規范》 ( gb50011 ? 2001 )為基礎，提出了地震動隨機模型參數的取值。此外，對考慮多點問題時地震波視波速的取值方法提出了建議。

phase-contrast

The dispersive characteristic of sws is a very important parameter of the rbwo and rtwt , other parameters such as the phase velocity , group velocity , coupling impedance can be derived from the linear dispersion relation . recently , the photonic crystal have attracted many attentions of the scientists , which has become a hot point of the research , it is also a ps 周期慢波結構色散特性是研究高功率微波器件的一個重要參量,其他重要特性如相速、群速、耦合阻抗等參量都可以從色散關系衍生出來,準確,快速獲得周期電磁結構的色散特性就顯得尤為重要。

We found that different level coriolis acceleration stimulation had no significant influence on the duration of the illusion but had some influence on the pattern of the illusion , the intensity of ci increased with the levels of coriolis acceleration stimulation , and no significant difference was observed on nystagmus beats , peak slow phase velocity , mean slow phase velocity , time constant of slow phase velocity decay , duration of eng among different coriolis acceleration stimulation , but the direction of eng is consistent with the pattern of ci 結果發現：不同強度的科里奧利加速度刺激對錯覺形態具有一定影響，錯覺持續時間、錯覺強度隨科里奧利加速度的增加而增加，不同科里奧利加速度刺激下的眼震電圖，其眼震方向與錯覺形態是一致的，但無論是水平性眼震還是垂直性眼震，眼震次數、最大慢相速度、平均慢相速度。慢相速度衰減時間常數、持續時間等參數均無顯著性差別。

Around 40 ; the neutral curve obtained by the growth rates of the temperature fluctuation has a ringlike curve separated from the main branch of nachtsheim s calculation by velocity fluctuation at the lower grashof number side ; and its phase velocity is close to the maximum mean velocity where the critical layer of the eigenmode locates . the thermal fluctuation decays rapidly as the nondimensional frequency above 0 . 4 , so that it means that the coupling effect between instability wave generated by buoyancy fluctuation and velocity waves by invicid instability seems weak enough for their critical layers in the range of the nondimensional frequency 詳細研究了自然對流邊界層中最早失穩的浮力振型的功率譜波長波速與臨界層位置等基本特征和它為主導其他振型尚未失穩時按線性理論得到的3種相互獨立振型的振幅分布。系統地測量了它所對應的溫度和速度漲落的振幅增長規律和中性曲線，實驗結果表明，溫度漲落的中性曲線在低格拉斯霍夫grashof數

The research on the rf characteristics of the conductor - centered helical groove sws . ( a ) in the “ cold “ system , we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency , the phase velocity and bandwidth are reduced slightly , the structure is more dispersive and the coupling impedance is enhanced 對具有中心導體軸的矩形螺旋槽慢波系統的高頻特性進行了理論研究： ( 1 )在冷系統中的研究結果表明：頻率較低時，槽深的改變對相速的影響不是很大，隨著頻率的增大相速略有減小，同時帶寬也有所減小，色散變得稍強，耦合阻抗增大。

We found the “ forward stimulated raman scattering “ will be excited if the pulse length is greater than plasma wave length . the “ forward stimulation raman scattering “ decreases the phase velocity and the amplitude of the wake wave which will lead to the reduction of maximum kinetic energy of the electrons trapped 結論是：當脈沖長度接近等離子體波長時，稀薄等離子體將發生“前向受激raman散射” ，它使脈沖后沿拉長，導致尾流場的相速度變小，以至于被尾流場“捕獲”的電子最大動能大大下降。

Kc of each higher mode in ridge waveguide is a very important parameter , once kc is obtained , the wavelength , phase constant , phase velocity , waveguide wavelength , equivalent reactance , equivalent admittance and so on can be obtained simply . then ridge waveguide devices can be designed based on these paremeters . in view of the widely use of ridge waveguides , the research of kc is very important in practice 由于脊波導中主模及各高次模的kc是一個很重要的參數，求出了kc ，可以很簡單地求出、相移常數，相速、波導波長、等效電抗、等效導納等等，求出這些參數后就可以用各種方法設計脊波導元器件了。

The influence of coriolis acceleration level on human oculomoor and perceptual responses to investigate the influence of different coriolis acceleration levels ( 0 . 329 cm / s2 > 0 . 493 cm / s2 ^ 0 . 658 cm / s2 ) on human subjective sensation and nystagmus . basic parameters including the pattern , the duration and the intensity of ci as well as mean slow phase velocity ( mspv ) , beat , time constant of slow phase velocity decay and duration of horizontal and vertical eng , were recorded 493cm s ‘ （ n ’ 20cm s2 ） 、 0石58cm婦’ （ ‘ 15cln s刁三種不同強度的科里奧利加速度引起的科里奧利錯覺形態、強度、錯覺持續時間及伴隨的水平、垂直性眼震的眼震次數、最大慢相速度、平均慢相速度、慢相速度衰減時間常數、持續時間等參數的變化進行了觀察。

Directed by wave theory of fractured media , the elastic parameters of eda medium are determined in the light of hudson - fractured theory , and christoffel equation gives the formula of the phase velocity of p - wave by which , effects of velocity on behalf of kinetic characteristic and reflection coefficient on behalf of dynamical characteristic form fractured density and azimuty is discussed 本文以裂隙介質的波動理論作指導，根據hudson裂隙理論，求出eda介質的彈性參數。在此基礎上，應用christoffel方程求出的地震縱波相速度表達式，探討了裂縫密度和裂隙方位對代表波場運動學特征的縱波速度和代表波場動力學特征的反射系數的影響。

Air is entrained as water jetting into water cushion pool , the gas - liquid two phase flows field are formed . the every phase velocity field are measured by using piv and ptv ( particle tracking velocimetry ) method in the course of jet angle 75and60 in gas - liquid flows of water cushion pool . image house of two phase flows are set up 西安理工大學碩士學位論文使用數字圖像處理技術中的piv和ptv測速技術就射流入水角75度和60度兩種情況分別測量了水墊塘模型水氣兩相流流場的各相速度場，建立了相應的兩相流流態圖像庫。

Because of the resonant interaction between the reb electrons and the wave excitated by the embp instability , the reb electrons cannot transport continuously , but in form of current clumps . the transport velocity is close to the phase velocity of the wave 因為embp不穩定性所激發的波和束流電子之間的共振相互作用，束流電子不是連續地傳播，而是以電流團的形式傳播，傳國防科技大學研究生院學位論文播速度接近于波的相速度。

( c ) for the helical swallow - tailed structures with same groove width , the deep groove depth one which is suitable for the use in a interaction system of high power twts , has the largest coupling impedance and the lowest phase velocity in comparison with the other different groove profiles （ 3 ）具有相同槽日寬度的燕尾形螺旋槽結構在槽深度較深情況下用作大功率行波管的互作用系統具有最大的耦合阻抗和最低的相速。

Any homogeneous viscoelastic medium subjected to one - dimensional tension and compression can be characterized in terms of the phase velocity c ( w ) and the attenuation coefficient deduce the complex modulus and the other equivalent viscoelastic functions 一維的縱向壓縮波在同質的粘彈性介質中傳播時，材料的粘彈性特性主要通過縱向波的傳播速度c ( w )和衰減系數a ( w )兩項來定義。

Based on new seismic code “ code for seismic design of buildings “ ( gb50011 - 2001 ) , a method of selecting parameters and equivalent phase velocity of the earthquake wave for multidimensional analysis is suggested 以最新發布的《建筑抗震設計規范》 ( gb50011 ? 2001 )為基礎，提出了地震動隨機模型參數的取值。此外，對考慮多點問題時地震波視波速的取值方法提出了建議。