值追蹤 的英文怎麼說

中文拼音 [zhízhuīzōng]
值追蹤 英文
value trace
  • 追 : Ⅰ動詞1 （追趕） chase after; run after; pursue; catch up with 2 （追究） trace; look into; get to...
  • 蹤 : 名詞（腳印; 蹤跡） footprint; track; trace; trail
  • 追蹤 : have in the wind; follow the trail of; track; trace; pursue
  1. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無振蕩（ weno ）格式及其在雙曲守恆律方程中的應用，在此基礎上作了兩個方面的工作：一是針對高頻聲波問題構造出一種基於保色散關系（ drp ）的weno有限差分格式，並對計算氣動聲學（ caa ）問題的代表性算例進行了大量數值實驗，比較了該格式捕捉波數的能力；另外，針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題，研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法，並且給出有代表性的密度滑移面問題的算例，得到一致高階精度的數值模擬結果。
  2. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  3. Then, the chaser ' s two orbit roots are selected as variable and visualizing the simulation by contour plot. this part of research draws the conclusion the same as the first part when the target ' s orbit is circular orbit, while the selected two variable can be wildly changed if the target ' s orbit is elliptical orbit. next, wait time before orbit maneuver is simulated

    其次，利用可視化的等值線圖研究了追蹤器軌道兩個參數為變量的情況下大范圍軌道機動問題，分析表明對圓軌道目標器交會機動時，追蹤器軌道根數不宜與目標器軌道根數相差過大，而對橢圓軌道目標器交會機動時，追蹤器軌道根數可選范圍較大，機動策略和方法富於彈性。
  4. We first constructed five traceable opratores and confined the detailed syntax of these five opratores so that we can explain each result of opratores and can construct the multi - opratores data cleaning program. through propagate the key information of each opratores, the mechanism of data lineage can trace the data cleaning program, which construct over the traceable oprators so that we can analysis and explain the cleaning result. according to the analysis and research of the incremental mode and conflict of data modification, we can correct and improve the exceptions which appear during the data modification

    接下來的數據沿襲機制通過傳遞各個操作的標識值，實現了對構造于可追溯操作基礎上的數據清理程序的追蹤，從而提供了對數據清理程序執行過程及結果的分析和解釋功能；同時利用互動式數據修改功能以及時糾正和改進數據清理過程中所出現的異常，並對數據修改過程中所涉及到的增量執行模式及操作沖突進行了充分地分析與研究。
  5. Forty - three undergraduates are included in the training group, who are pre - tested, after - tested and in follow - up survey with diflerenlial loneliness scale, interaction anxiousness scale, texas social behavior inventory and beck depression inventory. forty - two undergraduates are included in the control group, who are pre - tested and in follow - up survey with the same scales. the results suggested that ( 1 ) group guiding is an effective and practical method to improve the undergraduates " emotional state and emotion adjustment ability ; ( 2 ) group guiding with a series of psychological training courses has significant effects in improving emotional state and emotion adjustment ability for a short term and a long term ; ( 3 ) interaction anxiousness scale, texas social behavior inventory and beck depression inventory " are good scales in evaluating emotional state. ; ( 4 ) the series of psychological training courses still need further developing and improving

    採用訓練組與控制組對照，訓練組前測、后測、追蹤和控制組前測、追蹤的時間序列設計，通過設計一套有關情緒的心理訓練課程，對43名大學生分組進行心理訓練，結果發現： 1 ）團體心理指導是改善大學生情緒狀態和提升情緒調節能力的一條可行而有效的途徑，且值得嘗試和推廣； 2 ）情緒團體心理指導訓練對改善大學生情緒狀態和提升情緒調節能力具有良好的短期效果和長期效果； 3 ）交往焦慮量表、德克薩斯社會行為問卷、 beck抑鬱問卷是良好的情緒評估的客觀量化指標； 4 ）情緒訓練課程有待于進一步發展與完善。
  6. An automated de - noising algorithm based on the energy of wavelet packet not donoho ' s threshold algorithm is established. a gear feature vibration signal extraction method using the wavelet packet energy is proposed, which can separate gear meshing vibration, noise vibration and gear fault vibration signal from the original gearbox case vibration signal. basis pursuit ( bp ) algorithm is introduced into the filed of mechanical signal de - noising and feature extraction for the first time

    第三章擺脫了donoho的閾值消噪思想，從能量的角度建立了基於小波包的自動消噪演算法；提出基於小波包能量分佈的齒輪故障特徵信號提取方法，可以將齒輪嚙合振動信號、干擾振動信號以及故障沖擊振動信號從原始齒輪振動信號中分離出來；首次將基追蹤消噪演算法引入到機械故障信號的消噪與特徵提取上，通過對齒輪故障信號的消噪，表明了它的有效性，並對影響該方法實際應用效果的因素進行了全面的分析，同時也指出了該方法存在的局限性。
  7. In chapter two and chapter three, this paper discusses the tracking and building of isolines from two aspect, regular grid data and random discrete data

    文中第二章和第三章從規則格網數據和任意離散點數據兩個方面討論了等值線的追蹤與生成。
  8. In addition, for regular grid data it presents an effective algorithm for some particularity that there are four isopoints in one grid cell and for random discrete data points it lays emphasis on triangulation. this paper firstly put forward three principles : attribute principle of adjoining isolines, attribute principle of isoregions and inclusion principle of ioslines after studying the character of isolines. the bivalue - topology algorithm based on boundary tracking is given, which is founded on the three principle and is used to fill isoregions

    另外，在這兩部分中除了對邊信息鏈表的形成過程以及基於邊信息鏈表的等值線生成做了詳細討論外，還對規則格網數據的等值線追蹤中，一個網格單元上含四個等值點的特殊情形給出了一個比較有效的演算法，並在任意離散點數據部分對平面點集的三角剖分進行了著重討論。
  9. Another way to assess a change s potential value and feasibility is through traceability

    變更的潛在價值和可行性的另一種評估方式是通過可追蹤性。
  10. Through observing the influence of different geometry to reflect wave in deep layer, using seismic digital simulation tracing method, analyzing the influence of max - offset, trace interval, fold and geophone planting to reflecting energy, this article, summarizes, in both theory and practice, the application result of " bin stack " acquisition method

    通過不同觀測系統對提高深層反射信號的影響，採用地震數值模擬射線追蹤方法，分析了觀測系統中最大炮檢距、道距、覆蓋次數及檢波器埋置，對提高深層反射信號能量的影響，從理論到實踐總結了「面元疊加」採集技術的應用效果。
  11. First, the ray tracing equation and its numeric solution is presented in this paper, then on the base of quasi - parabolic ionosphere model, using the technology of the numeric ray tracing, a ray tracing simulateing platform is established. this platform can simulate the ray tracing for a fixed frequency or sweeping frequencies, also can calculate the group path and the covered region of rays

    首先，本文給出了射線追蹤方程及其數值解法，在球形對稱準拋物模型背景電離層基礎上，利用數字射線追蹤方法，建立了射線軌跡演示平臺。該平臺可實現定頻或掃頻射線軌跡演示，計算各射線群路徑，覆蓋區域等功能。
  12. It also calculates theoretically the minimal time interval between two trains in quasi - moving - block signaling system and recommends approximate values for the length of coded digit track circuit. the rapid development of urban rail transit demands a deep understanding on the features of track circuit

    在此基礎上，針對當前應用廣泛的基於數字軌道電路的準移動閉塞atc系統進行了重點分析，詳細討論了數字軌道電路的原理、準移動閉塞系統的列控方式等內容，並對準移動閉塞下的最小列車追蹤間隔時間進行了理論計算和分析，給出了數字軌道電路長度的推薦值。
  13. The vision impoorement was changed from 65 % of patients less than 0. 1 to 53 % of patients more than 0. 8

    經行囊外白內障摘除后並值入後房人工水晶體，且術后追蹤檢查至少半年。
  14. The report, based on research among 800 adults, says today ' s working women dismiss claims that their behaviour is " big motherish " as they fuel a multi - million - pound market in new and flashy " child - tracking " devices

    這份在800名成年人中進行的調查報告指出，如今的就業女性認為，當她們促成了一個價值數百萬英磅的新興且浮華的「兒童追蹤」儀器市場時，她們的所作所為就不能稱為「偉大母親般的」了。
  15. The paper mainly discusses the tracking, building, filling and labeling of isolines etc. from the point of view of algorithm. finally it describe the application of isoline analyzing system that developed by myself in anfas project, which is presided over by eu ( european commission )

    本文主要從演算法的角度討論了等值線的追蹤與生成，以及等值線的填充，等值線的標注等內容。最後描述了本人開發的等值線分析系統在歐盟主持的anfas項目（水災分析和決策支持的數據融合）中的應用。
  16. Keeps track of the previous values as well as the new values of our data

    是如何追蹤數據中的新舊值的。
  17. The top of the stack generally isn t interesting, since that s tracing the classloader code itself

    棧頂通常不值得關注，因為那追蹤的是類加載器代碼本身。
  18. Lerr is obtained through tracing the variety of elastic energy density of each element and recording the maximal fluctuation when brittle failure happens during numerical calculation

    該指標的實現是通過在數值計算中追蹤每個單元彈性能量密度變化的全過程，記錄單元發生脆性破壞前後的彈性能密度差值，得到單位體積巖體突然釋放的彈性能量。
  19. At the same time, as more and more radio sources have been set up, electromagnetic pollution in urban area becomes more serious, which is harmful to people ' s healthy and communication system so it is necessary to simulate the electromagnetic propagation in urban area by computer being an approximate hf method in evaluating em scattering ， the complex ray method （ crm ） is valuable in actual applications ， mainly benefited from its simple physical model ， convenient mathematical formulation and computational efficiency, especially with the scenes of scattering from complex objects based on the condition mentioned above, a hybrid ray model of the urban area electromagnetic wave propagation prediction was established with the foundation of ray tracing theory and complex ray theory

    復射線技術作為一種求解波場問題的高頻近似方法，由於其具有物理模型簡單、數學處理方便、計算效率高等優點，在復雜的目標散射特性分析等應用領域中有著重要的應用價值。基於以上的情況，本文在射線追蹤理論和復射線理論的基礎上，為城區環境建立了混合射線預測模型。本文採用橢圓模型對已有的射線追蹤方法進行加速，並將復射線理論應用到城區環境電波傳播預測中，提出新的預測方法混合射線方法。
  20. Level set method was used in this paper to attain burning surface variety regulation of arbitrary configuration grain by tracing interface of grain surface burnback. the work of this thesis can be summaried as follow : 1

    本文運用等值面函數法（ levelset ） ，追蹤固體推進劑燃燒界面的變化，從而獲得了任意結構型面裝藥的燃面變化規律，本文的主要工作及創新點概括如下： 1
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