nonstationary 中文意思是什麼
nonstationary
解釋
不固定的,變的-
This phase of the filtration process is called nonstationary filtration.
這個過濾階段稱為非穩態過濾。 -
In this paper, a crank - nicolson mixed element method, a nonlinear galerkin mixed element method for the non stationary conduction - convection problems time second order accuracy fully discrete formats and a two - level mixed element method with backtracing for the stationary conduction - convection problems are presented and analyed, respectively, an error analysis are provided for the crank - nicolson method of time discretization applied to spatially discrete galerkin mixed element approximations of the nonstationary conduction - convection problems
本文分別給出了非定常的熱傳導-對流問題的crank - nicolson混合元法時間二階精度全離散格式，非線性galerkin混合元法時間二階精度全離散格式以及定常的熱傳導-對流問題回溯二重水平法。討論了時間上的crank - nicolson離散方法應用於非定常的熱傳導-對流問題的空間離散的galerkin混合元近似。 -
The conclusion is valuable in studing relationbetween exports and economic growth. taking account of nonstationary, dynamic paneldata model is estimated, and revise the problem of residual errors sequence correlation
在此基礎上對模型做了改進，最終得到了動態面板數據模型，修正了殘差序列相關性的問題。 -
A fair amount of theoretical and experimental work has been devoted at this agency to a better understanding of nonstationary aerodynamics.
在這方面已經有了大量的理論計算和實驗工作可以更好地了解正常空氣動力學。 -
Linear frequency modulated ( lfm ) signals as the most popular pulse compression signal are a typical kind of time - varying, nonstationary signals, so applying the wigner - ville distribution into lfm signals has more advantages than conventional methods
雷達脈沖壓縮技術中所使用的線性調頻信號是一類典型的時變非平穩信號，採用時頻分析的研究方法處理線性調頻信號有著傳統方法無法比擬的優點。 -
Law of the iterated logarithm for nonstationary negatively associated random fields
隨機變量域的重對數律 -
Using nonstationary panel data, namely, panel unit root and panel cointegration, the paper researches the consumption function of the yangtze river valley
摘要運用面板單位根與面板協整方法研究長江流域的消費函數。 -
The studies on the nonthermal radiation of a kind of nonstationary black holes show that it owns the characteristics of direction and the energy extent of the radiation particles varies in different direction, in which aspect can get some new and meaningful results, namely the exact expressions on the maximum energy of the particle
同時，對一類動態黑洞非熱輻射的研究表明，動態黑洞的非熱輻射具有方向性，在不同的方向上，非熱輻射粒子的能量范圍不同，在這方面得出的非熱輻射粒子的最大能量的精確表達四） i大學博士學位論文式等內容都是創新的和有意義的結果。 -
Firstly, the backgrounds and techniques of intrusion detection system ( ids ) are introduced briefly in this paper, also the current status. then an intrusion detection system based on a new nonstationary machine learning technique model is presented and improved. on the precondition of the same false alarm rates, more intrusions have been detected, and less time for detection is needed with the improved system
本文首先引入了一種基於機器學習規則的、用於入侵檢測系統的動態模型，並對該模型加以改進，在誤警率不變的前提下，使系統能夠檢測到更多的入侵種類，縮短了系統檢測時間，從而提高了系統性能。 -
Separation of various components of nonstationary signal using half fourier transform
在非平穩信號組份分析中的應用 -
Since the underwater channel is nonstationary and the fades is frequency - selective, it is hard to use the real - time channel equalization technology
傳統的串列通信為了保證數據的可靠傳輸，必須實時地進行自適應的通道均衡。 -
Focused on the nonstationary features and analysis requirements of flutter test data, the application scheme is brought forward for flutter signal processing. by using computer simulation and flutter test of low - speed wind - tunnel of some aeroelastical modes, the characteristics of the scheme are investigated
本文基於顫振試驗信號的非平穩特點與分析需求，應用自適應時頻分析技術給出並實現了兩種新的顫振信號處理方案，重點研究了適用於連續變速顫振試驗的顫振邊界預測問題。 -
Because of the difficulty to calculate the wave function and transitive matrix element in high excited state, chaotic character of wave function is known a little. now many pay attention to the scar of wave function ; ( 3 ) the time evolutionary character of nonstationary state eigenfuction
由於計算高激發態波函數以及躍遷矩陣元的困難，人們對經典混沌給波函數帶來的特徵的研究工作還很少，目前研究最多的是關于波函數的疤痕。 -
The average range of nonthermal radiation particles is direct proportion to the energy extent of nonthermal radiation particle, but also inverse proportion to the density of stellar gas, however, to the stationary black hole with mass multipole moment and nonstationary black hole, the average range of their nonthermal radiation particle still has something to do with direction, which are the new results reported firstly
非熱輻射粒子的平均射程與非熱輻射粒子的能量范圍成正比、與星際氣體的密度成反比；對動態黑洞和一類具有質量多極矩的穩態黑洞而言，非熱輻射粒子的平均射程還與方向有關。這些都是首次報道的新結果。 -
Rectangular crouzeix - raviart anisotropic finite element method for nonstationary stokes problem with moving grids
型各向異性非協調元變網格方法 -
In the third chapter, by using the five nodals element ' s special property and combining the moving grid techniques, nonstationary stokes problem are studied
另一方面利用五節點單元的特殊性質，並應用變網格有限元技術，我們在第三章研究了發展型stokes方程的各向異性誤差估計。 -
As one of the best tools to analyze the nonstationary signals, it shows a good picture in the joint time - frequency domain and makes us know about the change of frequency along with the time clearly
這種分析方法提供了時間域與頻率域的聯合分佈信息，清楚地為我們描述了信號頻率隨時間變化的關系。 -
Although the work is based on the nonstationary signal of quadratic phase, the methods can also be extended to higher - order polynomial phase signal
論文的研究雖然是基於不高於二次相位項的非平穩信號，但是其思想方法也可以推廣到更高階的多項式相位信號。 -
Then, the multidimensional pseudo excitation method is developed for nonstationary random vibration analysis of lattice shells under multi - support and multi - dimensional earthquake inputs
在此基礎上，發展了多維隨機虛擬激勵演算法的理論，推導出了考慮多點、非平穩輸入時多維虛擬激勵法的計算公式。 -
Based on above research, a computer program has been developed for the random vibration analysis. the program is highly efficient and can deal with the influence of traveling wave effect and nonstationary seismic excitation
該程序可高效地對大型網殼進行多維隨機響應分析，並可精確考慮行波效應和地震激勵的非平穩性，其實用性很強。
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