phase fluctuation 中文意思是什麼

phase fluctuation 解釋
相位波動
  • phase : 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，...
  • fluctuation : n. 1. 波動，起伏，漲落；【物理學】脈動。2. 動搖不定，躊躇。3. 【生物學】彷徨變異。
  1. The writer studies the developed steps of real estate industry in the above - mentioned period and describes its generation mechanism, characteristics and cause of business cycle fluctuation of real estate industry in the period of our economy system shift. it is necessary to point out that policy cycle fluctuation should be a fundamental cause on business cycle fluctuation of real estate industry in china. writer here jumps at the conclusion that the recovery phase and depression phase of business cycle in our real estate industry should be later than the expansion phase and decline phase

    該部分內容由第3章構成，即從房地產經濟周期波動的一般研究轉到對我國房地產經濟周期波動進行分析，從總體上看，改革開放以來我國房地產業的真正形成與發展只有20年的歷史，通過對這一短時期中國房地產業發展的探討，指明轉軌時期中國房地產經濟周期波動的一些主要特點，同時指出我國房地產經濟周期波動形成機制與原因，當前我國經濟轉軌時期，政策周期波動是房地產經濟周期波動的根本原因，並從理論角度分析了房地產經濟周期波動與宏觀經濟周期波動在各個階段間的相互關系，得出我國房地產經濟周期相對于宏觀經濟周期波動來說在復甦期和蕭條期滯后，但高漲期和衰退期卻先行的結論。
  2. According to the markov approximation under a long haul condition, we get the inter - correlation function, log - amplitude and phase covariance function. the thesis puts much emphasis on three phenomenon of the laser under the effects of turbulence, i. e., intensity fluctuation ( atmosphere glistening ), beam floating and extension, phase fluctuation

    重點介紹湍流作用下的激光的三種物理現象及其產生機理，即強度起伏（大氣閃爍） ，光束漂移和擴展，相位起伏和到達角起伏。
  3. 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徵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佈。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
  4. The cut of phase space, particle type, average multiparticle, etc. no dynamical fluctuation has been observed through event factorial moments analysis

    可見，通過對事件階乘矩erraticity的分析，根本就觀測不到任何動力學起伏。
  5. In the second part of this dissertation ( chapter 6 and chapter 7 ), it is demonstrated that in low multiplicity sample, the increase of the fluctuation of event factorial moments with the diminishing of phase space scale, " erraticity ", are dominated by the statistical fluctuations

    在非對心碰撞中，初始坐標空間中的方位角不對稱性將導致末態粒子相對于「反應平面」的角依賴性。微觀上講，末態動量空間的大的各向異性來源於碰撞最初階段的大量的再散射。
  6. The wavelet multi - analysis is adopted to further understand the microstructure of solids holdup fluctuation, the vivid fingermark images show that it is a fractal and dissipative structure. the low and frequency signals reflect the dilute phase fluctuation behavior and dense phase ( cluster ) fluctuation behavior, respectively. to deep understand the multi - scales characteristic of gas - solids circulating fluidization, the wp decompose methods for obtaining the eigenvalue of gas - solid fluidized bed has been developed. the results show that eigenvalues of different scales are effective for identification of non - uniform and dynamic structure of gas - solid fluidized bed

    小波多分辨分析法得到指紋圖形象地揭示了顆粒濃度脈動的自相似、分叉等具有混沌特徵的微觀結構；小波分解后信號中的低頻和高頻成分分別代表了稀相和密相的脈動行為，小波包分解提取能量特徵值的方法能夠揭示氣固的多尺度特性，不同尺度上的能量特徵值四川大學碩十論文反映了氣固循環流化系統中存在的非均勻動態時空結構。
  7. This paper introduces a simulation experimental system of 3 - phase ac arc furnace, developing a dsp based electric - arc furnace electric pole fluctuation control system

    摘要介紹一種按照實際交流電弧的特性設計的三相交流電弧爐模擬試驗系統，針對電弧爐電極升降控制提出了一種基於dsp的控制方案。
  8. The local large fluctuation observed in the final phase space of cosmic rays experiment and high energy collisions cause intermittency and fractal to be the focus

    間歇和分形現象是由在宇宙線實驗和高能碰撞中末態粒子相空間中的局域大起伏而引起人們關注的。
  9. When temperature is very close to the temperature of phase transition, critical phenomena appear in the system. fluctuation of order parameters leads to the failure of landau theory of phase transition

    但是，在充分接近相變點時，系統出現臨界現象，序參量有顯著的漲落，這導致landau理論的失效。
  10. A calculation example is used to get some figure. the effect of phase shift and attenuation in temperature fluctuation by thermal mass can be observed in these figures. the cfd simulation of the similar modeling is carried out, the result of the cfd simulation is similar to the calculation example

    在前面工作的基礎上，本文作者還利用cfd軟體模擬了和前面模型中相似的情況，即只考慮室內蓄熱體的蓄熱作用，假設外圍護結構是絕熱的，得到的室內空氣溫度變化趨勢與算例所得到的是很相似的。
  11. In the second part of the thesis, the non - thermal phase transition in high energy collisions is studied in detail in the framework of random cascade model. the relation between the characteristic parameter xq of phase transition and the rank q of moment is obtained using monte carlo simulation, and the existence of two phases in self - similar cascading multiparticle systems is shown. the relation between the critical point qc of phase transition on the fluctuation parameter q is obtained and compared with the experimental results from na22

    文章第二部分中，我們用隨機級聯模型對高能碰撞中的非熱相變作了仔細研究，用montecarlo模擬得到了表徵相變的特徵參數_ q與矩階數q之間的關系，證實了自相似多粒子系統中存在兩相，求出了相變點q = q _ c對起伏參數的依賴關系，並和na22實驗結果進行了比較。
  12. In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems

    第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響，根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響，得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。
  13. Phase lock and multiple frequency circuit diminishes the influence from frequency fluctuation of electric net ; in addition, multiple channels simultaneous sampling, high - precision circuit decreases the error caused from the sampling tache

    用鎖相倍頻跟蹤電路來提供采樣頻率，以減少頻率波動的影響，用多路同採的高精度采樣電路來減少採樣環節引入的誤差。
  14. But at low temperatures it deviates from the curie - weiss behavior and saturates at even lower temperatures, which can be attributed to the effect of quantum fluctuation that stabilizes the paraelectric phase and suppresses the ferroelectric phase transition entirely

    量子順電體的介電常數在低溫時呈現類似於居里-外斯定律的行為，即顯示出將要發生鐵電相變的徵兆，但直至最低溫度都不發生鐵電相變。
  15. The definition and calculation of fractional dimension is introduced briefly. the pressure fluctuation signals are processed by reconstructing the phase space for sediment - laden and aerated flow. the correlation dimensions are calculated for sediment - laden flow, clear water and aerated flow

    簡要地介紹了分維的定義和計算，運用相空間重構法對含沙摻氣水流脈動壓強信號進行處理，計算了渾水、清水、摻氣三種不同水流狀況的關聯維數。
  16. While for colored phase fluctuation, the number of extremum in the steady state distribution is changed from one to three directly

    而色噪聲位相漲落情形下，定態分佈函數的極值點由一個直接變為三個。
  17. Based on the work of the former people, in this paper, we mainly studied the effect of the driving field phase fluctuation, the effect of gaussian transverse profile of the driving and laser fields, the doppler effect and so on for the open v - type lwi system

    本文在前人工作的基礎上主要討論了開放的v型三能級系統中驅動場的相位漲落、驅動場與激光場的橫向效應以及doppler展寬對產生無反轉激光的影響，並討論了系統其他各種參數的作用。
  18. The analytical solutions of the gain, dispersion and population difference in the steady state of an open ladder lasing without inversion ( lwi ) system are at first given when the phase fluctuation of the driving field is considered. then the effects of the driving field phase fluctuation on the gain, dispersion and population difference are analyzed by the numerical results from the analytical solutions. our research shows that the phase fluctuation of the driving field will results in a finite line width ; with the line width increasing, the gain decreases monotonously, however, variation of the dispersion isn ? t monotonous, it has a maximum value when the line width takes some value ; the line width varying can ? t lead to change lasing from without to with population inversion

    給出了有驅動場位相漲落的開放的梯型無粒子數反轉激光（ lwi ）系統增益、色散和布居數差的定態解析解，進而用得到的數值計算結果分析了驅動場位相漲落對增益、色散和布居數差的影響.研究結果表明，驅動場位相漲落將導致有限線寬;隨著線寬的增加，系統增益單調地減小，但系統色散的變化並不是單調的，當線寬取某個值時，色散有極大值;線寬的變化不能導致無反轉激光向反轉激光的轉變
  19. In chapter 4, with the dissipation approximation, the dynamics behaviors of the phase of the field are studied in terms of phase theory presented by pegg and barnett. the probability distribution of the phase and the phase fluctuation are discussed during the single photon process

    互eldand比eatom麗比anin亡en成ty - dop即den亡co即1in第四章利用耗散近似方法，運用pegg - barnett厄米位相理論研究光場的位相動力學性質
  20. If only the phase fluctuation is included in the incident light, the correlation time can also affect the parameter plane of the folt

    當入射光僅包含位相漲落時，噪聲相關時間對一級相變類比的參數區域也產生很大影響。
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