似穩態 的英文怎麼說
中文拼音 [sìwěntài]
似穩態
英文
quasi stability-
The importance of the steady state approximation is that it greatly simplifies the solution of the rate equations in complex consecutive reaction pathways.
穩態近似法的重要性是,它大大簡化了在復雜的連串反應途徑中速度方程的求解。For micro - cavity semiconductor laser, station model is proposed in this paper and its steady - state and instantaneous characteristics when the coupling efficiency of spontaneous emission into a lasing mode is equal to 1 are analysised. for current noise, sp noise, noise, p noise, as well as current modulation, sp modulation, modulation and p modulation, using small - signal approximation, we derive the laser ' s corresponding transfer functions. and we calculate their signal - to - noise ratio ( snr ) gain in various parameters through frequency domain analysis in the premiss of large input snr
本文對于微腔半導體激光器,提出站模型,能夠較直觀簡潔地分析微腔半導體激光器的穩態和瞬態特性,利用此模型對具有重要實用價值的= 1的微腔半導體激光器進行了討論;對于電流i噪聲、自發發射壽命_ ( sp )噪聲、自發發射因子噪聲、光子壽命_ p噪聲,以及電流調制、 _ ( sp )調制、調制、 _ p調制,在小信號近似下,得到了相應的激光器的傳遞函數;在大信噪比的前提下,對激光器進行了頻域分析,分別計算了它們在不同參數下的信噪比增益,分析了其抗噪聲性能。Stationary state approximation
穩態近似法If we use the steady state approximation to treat this scheme, the equations derived are more complex.
如果我們對圖解用穩態近似法去處理,則推導出的方程比較復雜。Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density. several novel phenomena can be obtained. the spontaneous emission displays an oscillatory behavior, classical light localization, photon - atom bound state, nonzero steady - state population and anomalously large vacuum rabi splitting. and localized mode associated with a defect site in an otherwise perfect photonic crystals, acts as a high - q micro - cavity
通過原子上能級與光子頻率帶隙邊緣的相對位置或者光子態密度,可以抑制或增強原子的自發輻射。分析並得到了一些奇異的現象,如自發輻射的諧振子行為、光的局域、單光子?原子局域態、上能級中存在非零穩態原子布居數、類似於真空中的拉比頻率分裂等。Simulated results showed that the position and the evolution process of necks are influenced by tensile strain rates. uniform deformation covers only a small fraction of the total deformation. however, at the steady - like flow stage, restrictions and accommodations between scattered localizations promote large uniform deformation
數值結果表明,頸縮的位置及發展過程受拉伸應變速率影響,完全均勻變形在總變形中實際占份量較小,而似穩流動階段的分散不均勻性的相互牽制與協調,使率敏感材料得以在接近均勻的狀態下經受大的變形。Ph linearization method is employed to solve a nonlinear reynolds equation for a steady state and micro - scale flow field, and the approximate function expressions of gas dynamic pressure and velocity in the spiral groove are obtained
摘要應用ph線性化方法、迭代法,近似求解了螺旋槽內穩態微尺度流動場的非線性雷諾方程,求得了氣體動壓和速度分佈的解析解。The method of multiple scales is used to determine the equations of modulation of amplitude and phase. the steady state response can be obtained by solving a couple of algebraic equations, which have been achieved by careful deduction under some conditions. and because of the complexity of the equations, programs are necessary to solve the equations mentioned above, and certain graphs are presented. based on chapter two, in chapter three, the method of multiple scales is introduced to the study of the multiple - dimensional nonlinear stochastic systems under random external excitation
在第二章基礎上,第三章將多尺度法引入到相應的隨機系統的研究中;嚴格推導了系統的約簡方程,用矩方法求出穩態解應滿足的方程,獲得一些結果;並且數值模擬結果與理論推導的結果是一致的;並注意到,與其對應的確定性系統相比較,系統響應從周期解變為近似周期解,系統的相軌線從極限環變為擴大的近似極限環;隨著激勵帶寬的增大,此擴大的近似極限環的寬度將增大。This paper is devoted to a detailed investigation of non - steady interaction between the moving body and plasma in compression region, whose dominating equations are obtained and whose phenomena are simulated
文獻[ 12 ]中採用雙流體、雙時標近似,得到了壓縮區內高頻調制場對帶電粒子非穩態作用的控制方程。In this model, the dynamic response of the tire was expressed approximately by a series connection of a spring ( to represent the translational elasticity ) and a steady - state contact model ( to represent the contact between tire and road surfaces )
該模型用一個彈簧(代表胎體的平移彈性)和穩態模型(代表胎面與路面的接觸作用,也稱接觸模型)串聯來近似表達輪胎的動態響應。The same conclusion as derived from the original pda under approximate condition is concluded this way without any approximations. the second method is the instant - state performance prediction based on the hyca method. this method not only gives the off - line recursive error variance relation, but also gets a series of performance measurement such as track life
然後應用兩種方法對其進行性能估計和預測,一是基於riccati方程的穩態性能估計,其結果與pda演算法近似條件下得出的結論相同;二是基於hyca方法的瞬態性能預測,不僅給出了誤差方差的離線遞推關系,而且得到了航跡壽命等一系列性能指標的估計值。3 ) the chosen single case turbine is suitable to satisfy the compress rate demand in the project, and if the thimble reheat take the bushing heater as the model, the simple parameter change of the bush and working path can make it reach the demand
3 )經過選型的單級壓氣機可以滿足設計方案中對壓比的要求,其穩態參數也符合設計值;同時,若採用與吸熱器類似的套管式回熱器,則只需要根據實際情況修正套管及工質流道的幾何參數就可以達到設計要求。Such a slow compre ion carries the gas through a series of states. each of which is very nearly an equilibrium state and it is called a quasi - static or a " nearly static " proce
這樣的緩慢壓縮能使這種氣體經歷一系列的狀態,但各狀態都很接近於平衡狀態,所以叫做準靜態過程,或"近似穩定"過程。In the control strategy, the basic value of rotation rate is calculated by corrected similar formulation and the adjustment value is ascertained by output of fuzzy controllers, the strategy can assure steady precision and to eliminate vibration
在這種控制策略中轉速控制量的基值根據修正後的相似公式進行計算,而轉速控制量的調節值為模糊控制器的輸出,這樣做既保證了系統的穩態精度;也避免了系統振蕩。The research work primarily concludes as follows : 1. the steady rate equations are get under the analysis of four energy class of yb3 +, and the approximate resolution is carried out
研究工作主要包括: 1 、分析了鐿離子工作的四能級系統,在近似求解穩態速率方程組的基礎上得出了光纖激光器輸出功率的解析表達式,並且計算了解析解與數值解的偏差。Compared to heat transfer in the external region of borehole, mass and heat capacity of materials inside the borehole are insignificant and negligible. thus, heat transfer inside the borehole is approximated as steady - state heat transfer except for analyses of short times ( a few hours )
與鉆孔周圍區域傳熱過程相比,由於鉆孔內材料的熱容量較小,因此除了討論短時間(數小時)的瞬變傳熱問題以外,可以忽略鉆孔內材料的熱容量,把該部分的傳熱近似作為穩態傳熱處理。Quasi stable state
似穩狀態On the ground of mpda algorithm and the conclusion of its steady - state performance evaluation, the choice of the detection threshold becomes a matter of optimization under the condition of properly chosen detection model and hypothesis. and the analytic expression of auto - adjusted detection threshold can be deduced via approximate fitting attenuation factor derived from the conclusion of performance estimation. it presents a novel approach for the optimization of detection - tracking system
基於mpda演算法及其穩態性能估計的結論,在適當選擇檢測模型和一定假設條件下,將自適應檢測門限的選擇歸結為一個最優化問題,通過近似擬合性能估計結論中的衰減因子,得到了最佳檢測門限自適應調整的解析表達式,為檢測?跟蹤系統的聯合優化設計提供了一種新思路。As the total negative surface charge of such complexes matches the surrounding charge density of the matrix, the sds - protein complex stops migrating and remains stationary, as typical of steady - state separation techniques
當復合物表面總的負電荷與周圍基質的電荷密度一不能致時,與典型的穩態分離技術相似, sds -蛋白復合物則不再遷移而保持固定。Realizing the application of the empirical mode decomposition in the instantaneous characters extraction of the non - linear and non - stationary signals. in the meanwhile, it has proved that it is feasible to realize the similar pattern matching of the stocks " forecasting, if the empirical mode decomposition and the forward propagation learning algorithm of multi layered neural networks with feed back connections are related
實現了經驗模態分解方法在非線性和非穩態信號瞬時特徵提取中的應用;同時利用實驗數據證明了經驗模態分解方法與多層反饋神經網路fp演算法相結合,來完成股票數據預測中的相似模式匹配的可行性。分享友人