time-varying time scale 中文意思是什麼
time-varying time scale
解釋
時變時間比例尺-
When the field is slowly - varying, the scalar field potential acts like a cosmological constant. in addition to the quintessence models, many other theories for dark energy have been proposed, including models based on super - symmetric gauge theories, super - gravity, small extra dimensions, large extra dimensions, quantum field theory effects in curved space - time. all these models are essentially based on the existence of a mass less scalar field acting at a cosmic scale
除了真空場模型外，科學家亦提出其他解釋黑暗能量的理論，這些模型建基於不同的物理理論或假設，例如超對稱規范理論超重力增加一些小或大的空間維數量子力學在彎曲時空的影響等等，這些理論模型，返本溯源，其實背後都假設存在著一個特性類似於宇宙常數的無質量純量場。 -
The stability conditions of time - varying and neural large - scale systems
時變時滯及中立型時滯大系統的穩定條件 -
Robust stability of a class of large - scale systems with time - varying delay
一類具有不確定性時滯大系統的魯棒穩定條件 -
In chapter 3, we study the stability for linear time - varying discrete large - scale systems with unidirectional strong coupling among subsystems
第三章研究子系統間具有單向強耦合的線性時變離散大系統的穩定性。 -
For a large scale of linear time - invariant systems, linear time - varying systems and nonlinear systems, many scholars proposed a series of new schemes
針對一大類線性時不變系統，線性時變系統及非線性系統，許多學者利用backstpping方法提出了一系列新的非線性控制器設計方案 -
Based on the basic principle of wavelet analysis, multi - resolution analysis of signal in atomic clock is made. the coefficients of wavelet transform for synthesis atomic time, which are weighed and averaged at different wavelet scales, are obtained. then according to reconstruction theorem, multi - resolution synthesis time scale can be reconstructed. since the signal of atomic clock has been analysed by multi - resolution, we can use wavelet variance at different scales to weight and average the coefficients. thus either the difference in stability of different clock or the varying characteristic of the same clock at the different scale are all considered. finaly, this method is checked by the measured data from national timing serve center of shaanxi astronomy observatory. it confirmed that this technique, which is simple and practicable, is a new method of multi - resolution. from this method, the common characteristic of different clocks can be extracted. the stability of multi - resolution synthesis atomic time scale is obviously superior to that of other methods
本文根據小波分析的基本原理，對原子鐘信號進行多解析度分解，將分解后的小波變換系數進行加權平均，得到不同小波尺度綜合原子時的加權平均小波變換系數，然後由小波變換的重構條件，反演綜合時間尺度.由於對原子鐘信號進行了小波分解，利用不同尺度的小波變換系數的小波方差進行加權平均，這樣既考慮不同原子鐘在穩定性方面的差異，又顧及同一臺原子鐘在不同小波尺度的變化特性.最後根據陜西天文臺國家授時中心的實測數據對這種方法進行了檢驗.表明這是一種全新的多解析度綜合方法，這種方法比較簡單而切實可行，它能提取各個原子鐘的共同特性，多解析度綜合時間尺度的平穩性明顯優于其他方法 -
Abstract : in this paper, the method of decomposition of large - scale system and a generalized inequality are used in studying the existence of stationary oscillation of time - varying linear large scale system under structural perturbations, some new results are obtained
文摘:該文應用大系統的分解方法及一個推廣的不等式，研究了一類時變大系統在結構擾動下的平穩振蕩問題，得到了一些新結果 -
By using the approach, a high - order linear time - varying discrete large - scale system is decomposed into some low - order decoupling subsystems with unidirection
用此方法將線性時變離散大系統化為若干個具有單方向解耦的低階子系統。 -
The traffic control and management system of freeway is a varying with time, large - scale complex system, which includes people, vehicle and road, and the traditional control method and general management means could not reach the satisfied result
高速公路交通控制與管理系統是一個包括人、車、路相互作用的復雜時變巨型系統，按傳統的控制方法和常規管理手段很難達到滿意的效果。 -
Robust stability criterion for uncertain large - scale systems with time - varying delay
具有時變時滯不確定大系統的魯棒穩定性判據 -
The partial decomposing approach is applied to the stability analysis for the linear time - varying discrete large - scale systems
將離散大系統穩定性分析的部分分解法用於線性時變離散大系統穩定性分析。 -
A partial decomposition for linear discrete large - scale systems in stability is proposed. and it is applied to stability analysis for the time - invariant and time - varying discrete large - scale systems
提出了離散大系統穩定性分析的部分分解法，並將該方法用於線性定常及時變離散大系統穩定性分析。 -
In this paper, first we review the general methods of analysis of stability of large - scale systems, and in particular, we discuss scalar lyapunov approach and vector lyapunov approach by using linear time - varying system as example. then we present an introduction about partial decomposing approach of stability analysis by using linear time - varying system as an example. finally, in the main part of this paper, we consider the stability problem for linear, time - delay large - scale systems and nonlinear large - scale systems with strong coupling in single direction among subsystems
又以線性時變大系統為例介紹了大系統穩定性分析的部分分解法，最後在本文的核心部分，研究了子系統間具有單向強耦合（前段子系統對後段子系統影響較大，但後段子系統對前段子系統影響較小或沒有影響）的線性時滯大系統和非線性大系統的穩定性問題，分別提出了時滯大系統穩定性和非線性大系統穩定性的部分分解法。
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