periodic amplitude 中文意思是什麼
periodic amplitude
解釋
周期振幅-
Distinct outward fpsc following the inward fpsc emerged in neurons ^ pll and was abolished by bicuculline ( 50 um ). bicuculline increased the amplitude and duration of the initial inward fpsc in all age groups and characteristically recruited the polysynaptic second component of fepscs in neurons p11 - p21. no spontaneous periodic inward current was detected in any age groups after blocking gabaa receptors
在生后11天以上的神經元，內向電流之後出現了明顯的外向電流，此外向電流可被gaba受體阻斷劑荷包牡丹堿（ 50pm ）完全阻斷，同時iscs的初始內向電流的幅值和時程均明顯增加，並且在阻斷gaba受體之後，任一年齡組均未觀察到自發性周期性的內向電流。 -
Second part, using approximation method and implicit function theorem, we obtain the existence of large amplitude 2 - periodic bouncing for damped linear impact osillator with mutiple impacts in one period
在第二部分里，我們運用逼近框架與隱函數定理，對于帶小阻尼的線性碰撞振子，證明了在一周期內發生多次碰撞的大振幅2 -周期解的存在性。 -
It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained
文章首先對磁性宏觀量子效應的理論和實驗方面作了簡單介紹，然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法，把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中運動的粒子，利用瞬子方法給出基態能級劈裂，最後利用周期瞬子方法分別計算了隧穿幅、能級移動以及wkb前因子，從而給出由於熱助量子隧穿引起的激發態的隧穿率。 -
Proved with the mixing rate using parameters tw and r ^ it showed that large amplitude and high frequency could greatly enhance the mixing rate. but at large st, the rate of attenuation appears to be in periodic fluctuation at the range of low frequency, so there must be some best partnership of amplitude and frequency
用參數t _ w 、 r _ （ 15 ）表徵的混合效率表明：總的來說大振幅、高頻率有利於混合，但在st較大的低頻率區中衰減速度會有周期波動的特性，存在最佳的頻率振幅配對。 -
At the point of co = g > c, it is the hopf bifurcation that the rotor orbit of shaft centerline is the periodic whirl of small amplitude. the method is suitable for the multi - freedom system
數值求解系統動力學方程，在_ c處，轉子軸心軌跡為極小幅值的周期渦動，此為hopf分岔，分叉后，系統運動為擬周期運動。 -
Then the behavior of the free joint when we bring the periodic perturbation through controlling the actuated joint is analysed, we can find in the result that the behavior of the free joint in the phase plane follows an ordered closed trajectory with the center equilibrium point + 2 in the case where the amplitude of the input is small, we can define a weakening factor to make the position of the free joint reach the center equilibrium point + 2
通過相平面分析的方法分析了當驅動臂施加周期擾動對非驅動臂運動的影響，其結論為通過調整驅動臂周期擾動的幅度及極性，可以使非驅動臂沿著圍繞平衡點2的極限環軌跡運動。在此基礎上，提出衰減因子的概念，通過衰減因子調整驅動臂擾動的幅度和周期，使非驅動臂能夠穩定在平衡點2 。 -
Other than the periodic oscillation in pollen tube growth rate, the amplitude of each oscillation also changes in an oscillatory behaviour
在花粉管生長速率呈現周期性變化的同時，生長振蕩的振幅也表現出「小?大?小」的規律性變化。 -
In order to analyze the rotation noise further, a new method for measuring the amplitude and phase of each harmonic component of periodic signal mixtures is established based on the morlet transform and fourier transform in theory, which will provide scientific warranty for reducing noise of disk mill
為了進一步分析爪式粉碎機的旋轉噪聲，理論上利用morlet小波變換結合fourier變換對旋轉噪聲各次諧波成分的振幅和初相位的提取，作了初步探討。 -
After a long time evolution, the system finally reaches a stable state at which the magnetization and the equal time spin - pair correlation are periodic oscillating functions with the equal period as the external field. numerical simulation shows : when the amplitude of external filed is large, there exits a particular temperature at which the average magnetization and the average spin - pair correlation are almost unaltered with various field amplitude ( i. e. magnetic susceptibility is zero ), and the particular temperature depends on the number of the spin states, cutting down with q increasing
由數值模擬得到：當外場幅度較大時，存在一個特殊的溫度點（我們稱之t ） ，在這個溫度點，系統的平均磁化強度和平均等時自旋對關聯隨外場幅度的變化幾乎保持不變（即磁化率為零） ，並且這個溫度的大小依賴于自旋態數目q的變化， q越大，這個溫度就越小；而當外場較小時，確信系統存在有限大小的臨界溫度 -
In addition to amplitude and wavelength, a periodic wave is characterized by its frequency
除了振幅和波長，周期波有其固有的頻率。 -
The paper researches on the control of chaos or hyperchaos via the method of the tune - delayed feedback control ( dfc ), the proportional periodic pulse perturbation to the system variables ( pp - sv ) and limiting amplitude
本文主要對時間延遲反饋法（ dfc ） 、正比于系統變量的周期脈沖擾動法（ pp - sv ）及限幅法這三種控制混沌和超混沌系統的方法展開了研究工作。 -
In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described
汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉動機械，由於安裝或運行中的原因，在轉子旋轉過程中，可能和器壁發生輕微的摩擦和碰擊，簡稱碰摩.聲發射技術在碰摩發生特別是故障早期診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數，而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感，在碰摩發生的起始階段，包絡譜中與轉速同步的周期性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹
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