self-oscillations 中文意思是什麼

self-oscillations 解釋
自振蕩
  • self : n （pl selves ）1 自己；自身；本身；【哲學】自我；我。2 本性；本質。3 私利；私心，私慾。4 〈俗〉...
  • oscillations : 振蕩
  1. Its symbolic connotation from this owes to the returning cyclical nature of the seasons ; the oscillations of the night sky ; self - fecundation ; disintegration and re - integration ; truth and cognition complete ; the androgyne ; the primaeval waters ; the potential before the spark of creation ; the undifferentiated ; the totality ; primordial unity ; self - sufficiency, and the idea of the beginning and the end as being a continuous unending principle

    它含蓄地象徵著季節的來回循環；黑夜的振動；自我受胎；瓦解和綜合；真理和認識的完成；雌雄同體；原始的水；潛在的創世火花；無差別性；整體；原初的合一；自給自足；象徵無休止的永恆法則下的開始和終結。
  2. But sometimes self - excited oscillations and noise may appear in hydraulic flapper - nozzle servo - valve if its construction is not selected very correctly. if self - excited oscillations and noise appear in hydraulic servo - valve, the performance of hydraulic control systems may lose stability

    因它具有非常快的響應速度，所以是目前應用最廣泛的伺服閥，但它也存在自激現象，容易產生自激噪聲和振蕩，嚴重影響伺服控制系統的穩定性。
  3. One obtain a description of the vibrational modes in terms of self-consistent oscillations of the nuclear density and potential.

    藉助核密度和勢的自洽振蕩我們便得到振動模式的描述。
  4. There are various kinds of the self - oscillations in the preamplifier system of the high power laser facility, the origins of them were analyzed in theory

    摘要分析了高功率激光裝置預放大系統內外各種自激振蕩的來源，通過理論計算和實驗驗證提出了各種自激振蕩的抑制方法，並在實踐中得到驗證。
  5. On the basis of the primary studies upon the nonlinear interactions between the unstable waves and the self - excited oscillations in the flow, experiments were focused upon the attenuation effects on the oscillations of tripping wires, side jets and deflected plates, and upon the mechanisms for the attenuations

    在對流動的不穩定波之間非線性相互作用過程和自激振蕩的基本規律研究的基礎上，實驗研究了絆線、旁射流和折板削弱自激振蕩的效果與機制。
  6. However, by comparison with flap nozzle servo valve which has been used widely and popularly by now, the torque motor of jet pipe servo valve has a larger rotary inertia. this causes low natural frequency of servo valve, and thus the response speed of jet pipe servo valve is slow. moreover, the jet pipe of servo valve has large flexibility, and it is easy to excite oscillations and noise in the valve, which is named self - excited oscillations and noise

    然而與目前普遍使用的噴嘴擋板伺服閥相比，射流管伺服閥的銜鐵組件轉動慣量大，導致力矩馬達部分固有頻率低，從而響應速度慢，此外，射流管供油管柔性大，容易產生自激現象，這些缺點都使得射流管伺服閥的動態特性差，從而影響了它的工作性能。
  7. Sometimes cavitation and self - excited oscillations may exist in the jet flow field. they may performance and lifetime of the servo valve

    射流流場產生的氣穴不僅破壞流體的連續性，而且還引起振動和噪聲，直接影響到閥的性能與壽命。
  8. The electric field domains and current self - oscillations which result from sequential resonant tunneling between different subbands of the superlattice are very significant phenomena. we have optimized the simulation using matlab software. comparing the processing data, we know that various ode commands solve problems with different difficulties

    本論文主要內容包括以下幾個方面：運用matlab軟體進行模擬計算的演算法優化，從比較摻雜弱耦合gaas / alas超晶格模擬計算的過程數據可得，不同的ode命令可求解問題的難度是不同的：針對較低難度問題，即研究固定偏壓下超晶格縱向輸運的求解問題（ du / dt = 0 ） ，一般首選ode45 。
  9. Since the concept of superlattice was proposed, vertical transport in superlattice has been investigated widely. the electric field domains and current self - oscillations which result from sequential resonant tunneling between different subbands of the superlattice are very significant phenomena. such kind of oscillation can be uesd to make tunable microwave oscillaors. in this thesis, low temperature transport problem, especially the formation of field domain and the condition of current self - oscillations in doped gaas / alas superlattice with weak coupling are investigated thoroughly and also by combining the macroscopic model with the microscopic one., the voltage - current characteristic and the current oscillation are simulated. the calculated result is nearly consistent with the experimental data

    由超晶格中子能級之間的順序多阱共振隧穿引起的電場疇及電流自維持振蕩現象是其中的一個非常有意義的分支，該現象可用來製作電壓調諧微波振蕩器。本論文對弱耦合摻雜gaaa alas超晶格中的縱向輸運特別是針對低溫下的場疇的形成和固定偏壓下電流自維持振蕩產生的條件進行了深入的探討，並結合宏觀模型和微觀模型對超晶格在時變電壓作用下的電壓-電流特性以及固定偏壓作用下的電流特性進行了模擬計算。
  10. It will exert resistance and damping force to the torque motor armature, so that the dynamic performance, especially the stability, of flapper - nozzle servo - valve can be improved. the self - excited oscillations and noise can be removed. at the same time, as magnetic fluid has a higher magnetic permeability, the efficiency of torque motor magnetic circuit can be improved

    由於磁流體具有的較大磁導率和較大的磁化強度，把磁流體添加到伺服閥力矩馬達的工作氣隙中，可提高伺服閥力矩馬達的磁迴路效率，增加伺服閥的阻尼，從而改善噴嘴擋板伺服閥的動態特性，抑制及消除其自激振蕩和噪聲。
  11. In the second chapter, on the basis of the work of smerzi et al, we discuss the 7r - phase oscillations and the macroscopic quantum self - trapping effects under the symmetric time - independent well

    基於smerzi等人的工作，在第二章主要討論了對稱不含時勢阱情況下系統的位相振蕩和宏觀量子自囚。
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