precise time 中文意思是什麼
precise time
解釋
精確的時間-
Then the finite element equations are derived with the effective heat capacity method. common time - stepping method and precise time integration ( pti ) method are used to solve the equation
然後基於等效熱容法推導了伴有相變過程的傳熱控制方程的有限元列式，並且分別研究了用常規的時間差分法和精細積分法求解上述有限元方程。 -
Precise time - integration with 1mm dimension expanding method
結構動力方程的增維精細積分法 -
The precise time - interval measuring is widely used in all kinds of scientific experiments, especially in some large - scale physical experiments such as detonation experiment and particle acceleration experiment, in which some important parameters are obtained by time - interval measuring
精密時間間隔測量廣泛地應用於各種科學試驗中，特別在爆轟與粒子加速等大型物理實驗中，有很多重要的物理參數就是通過時間間隔測量而間接獲得的。 -
The key technology of it is passive ranging, while the key of ranging is the high precise time delay estimation, which is the main factor that restricts the precision of ranging
其關鍵技術是測量目標距離，而距離測量的關鍵是高精度的時延測量。時延測量精度是制約距離測量精度的主要因素。 -
The object in hand being to show that the prisoner went down, with some fellow - plotter untracked, in the dover mail on that friday night in november five years ago, and got out of the mail in the night, as a blind, at a place where he did not remain, but from which he travelled back some dozen miles or more, to a garrison and dockyard, and there collected information ; a witness was called to identify him as having been at the precise time required, in the coffee - room of an hotel in that garrison - and - dockyard town, waiting for another person
此案的目的是要證明五年前那個十一月的星期五囚犯跟某個尚待追查的同案犯一起乘郵車南下，兩人晚間一同下了車，到了某處，但未停留目的是造成假象，卻又立即折返十多英里，來到某個要塞和造船廠搜集情報。一個證人出庭確認四犯曾在那個時刻在那個要塞和造船廠所在的城市某旅店的咖啡館里等待另一個人。 -
This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails. this monitoring system is a non destructive testing system, which adopts avr mcu and high - precise time chip processing as the core of it, and adopts the critically refracted longitudinal wave as the object of measuring. my studying focuses on the theory of the monitoring system, which will be listed in this arctile : according to the snell theory, the theory of motivating of critically refracted longitudinal wave is described in details, and the finite element software is used to emulate the propagating course. the formulas of calculating the pts of swr are taken from the acoustoelasticity theory, and the calculating the parameters is introduced. according to assemble materials, three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described, which are measuring the sound - time in changeless distance, ultrasonic critical - angle refractomery and frequency spectrum, the first way of ways is used in this experiment system. the factors, which effect the monitoring system, are assaid in some degree based
本文的研究工作重點在無縫焊接鋼軌溫度應力測量系統的理論模塊，包括根據snell原理，研究極限折射縱波的激發機理，並使用有限元軟體ansys進行模擬;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式，並對其中參數的求解方法進行介紹;根據收集的資料，介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法，即固定距離測量聲時法、臨界角折射法和頻譜分析法，本實驗系統使用的是第一種;根據實驗經驗以及相關資料，分析了影響極限折射縱波測量溫度應力的幾個因素，並提出了相應的解決方法;根據實驗系統的需要，獨立設計並加工出相關配套的實驗設備，包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。 -
Precise time integration method for solution of nonlinear transient heat conduction
非線性瞬態熱傳導的精細積分方法 -
Assessment and improvement of precise time step integration method
精細積分方法的評估與改進 -
Precise time measurements are needed for high - speed communications systems among other modern technologies
與其他現代科學技術相比，在高速通訊系統中，時間的精確度顯得尤為重要。 -
This paper gives a time - synchronization technique bases on gps time service signal which is used in broad band seismic recorder 。 by world coordination time offered by gps - - utc ( usno ), adjust local clock base on gps signal, gain high nicety clock signal, clock precision reachs 10 - 6 。 this clock is the time source of broad band seismic recorder, bring the whole seismic recorder works in same time base. 1pps time base with high stability can be used as in - phase, spring, time and start - stop of every collection mode, while the scale under second make a precise time mark to receive data of broad band seismic recorder
針對接收機中gps信號的噪聲進行kalman濾波軟體處理， kalman濾波可以對gps信號與本地晶振時鐘的時差數據在大噪聲中進行平滑，在較短時間內估計出高精度的時差數據。系統消除了gps秒脈沖信號的ms級隨機誤差，把晶振秒脈沖的長期穩定度鎖定到gps信號的穩定度上;在gps信號失效時給出了可行措施，能夠保證在任何情況下產生一個穩定、高精度秒脈沖信號，誤差在1 s內。 -
The key technology is passive ranging, while the key of ranging is the high precise time delay estimation
其關鍵技術是精確測量目標距離，而精確測量距離的關鍵是高精度的時延測量。 -
By using high - speed data acquisitioning unit designed specially to capture travelling waves of transient current, using global positioning system ( gps ) to supply high precise time tagging for both ends, using wavelet transform theories to identify the head of the travelling waves, the fault locator can realize high precise double - ended travelling waves location
該測距裝置採用專門設計的高速采樣單元捕獲暫態電流行波信號，用全球定位系統（ gps ）為線路兩端提供精度高達1 s的統一時標，用小波變換理論識別暫態電流行波波頭信息，從而可以實現高精度的雙端行波法測距（ 150m ） 。 -
Precise time - integration method with augmented matrix for analysis of non - stationary random responses
線性隨機結構的平穩隨機響應 -
In this paper, load identification is studied in the time domain by combining the coupling method and the precise time integration method
該文通過耦合方法與精細時程積分法的結合，對載荷辨識問題進行時域分析和推導。 -
Hence this method can improve accuracy and efficiency of the calculation. c. based on these work upwards, an adaptively wavelet precise time - invariant integration method was proposed in this paper. in this method, an adaptive multilevel interpolation wavelet collocation method for partial difference equations ( pdes ) was conducted, in which the time complexity is less than oleg v ' s method, and then the adaptive precise integration method was combined with, so that in this method the adaptively discretes both in time domain and physical domain were realized
該方法將外推法引入求解結構動力方程的精細時程積分法中，從而使該方法在求解非線性動力方程中可以自適應選取時間步長；需要指出的是，由於考慮了矩陣指數精細演算法和外推法演算法在時間離散方法上的一致性，在外推過程中，計算工作量基本沒有增加；因此，兩種方法的結合有效提高了演算法的效率和精度。 -
The osmotic pressure test was developed to determine the unknown, finite strain consolidation coefficient and convection coefficient in the mathematical model. the two coefficients both varied with effective stress and depth and were functions of initial void ratio, compressibility, permeability and permeability derivative along depth. a precise time step integration method was proposed to solve the finite strain osmotic consolidation equation with varied coefficients
設計滲壓固結試驗確定理論模型中的待定系數有限應變固結系數和有限應變固結對流項系數，這兩個系數均為隨有效應力和土層深度變化的量，並且體現軟土初始孔隙比，壓縮性、滲透性及其沿深度變化等因素的綜合影響。 -
On wavelet precise time - integration method for burgers equation
方程的小波精細積分演算法 -
Application of precise time - integration method for dynamic response analysis of large - scale structures
精細時程法在大型結構動力響應中的應用 -
Gt3d set precise time, with a few countdown lcd display
Gt3d ：時間設定精確，有順數倒數lcd顯示 -
Precise time integration algorithm of stiff equation in nonlinear dynamic system
非線性動力系統剛性方程精細時程積分法
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