相序換向 的英文怎麼說

中文拼音 [xiāngxùhuànxiàng]
相序換向 英文
phase sequence commutation
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  1. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相控線陣換能器聲場的指向性的基礎上，就各個晶片幾何參數對指向性指標（主瓣寬度、旁瓣幅度、消除柵瓣） 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述，並在綜合各方面影響的基礎上，提出了晶片幾何參數優化設計的原則和方法，編寫了設計程序和界面。
  2. The claimed train approval dss take advantage of the advanced es and dss techology. the practical system uses delphi6. 0 software platform of borland corp. and adopts the object oriented designing and programming to insure the advantage of the the design of the system. the whole database of the system is designed on the platform of the sql server2000, can connect oracle or sybase database etc. by using odbc, can achieve the data exchange and information use in common of the tmis and fmos, and can insure that the system is easy to develop and extend

    鐵路請求車審批輔助決策系統採用先進的專家系統（ es ）和dss技術，研製開發的實際應用系統，選擇了最新的borland公司的delphi6 . 0軟體開發平臺，採用了面向對象的程序開發方法，確保了系統的先進性。系統綜合數據庫的設計是在sqlserver2000平臺上完成的，可通過odbc介面與oracle或sybase等大型數據庫連接，實現與外部相關的tmis （鐵路管理信息系統）及fmos （貨運營銷及生產管理系統）系統的直接數據交換與信息共享，保證了系統具有較好的開發性和信息可擴展性特點。
  3. In field of deductive database, magic transformation is an evaluation strategy that combines top - down with bottom - up. it restricts the computation of logic program to tuples that are related to the query

    在演繹數據庫領域中，魔集轉換是一種自頂向下和自底向上相結合的計算策略，它使邏輯程序的計算始終限制在與查詢相關的數據中。
  4. The basic working principles and characteristics of srm will be described firstly in this paper, as well as its developing survey and researching directions. and then the srd system will be separated into several function parts to be introduced respectively in details : ( 1 ) to analyze the basic characteristics of the srm including electromagnetism, current and torque of every angle field of the rotor based on the subsection - linearized inductance characteristics of stator windings and several idealized supposes. ( 2 ) how to design and realize the h - bridge converter, and the method to use it ; ( 3 ) how to design and realize the controller based on dsp ( tms320f240 ) and the control strategies, as well as the program ; ( 4 ) to introduce the monitor program running in a pc, which is programmed by delphi

    本文首先介紹了srm的基本工作原理和特點以及srd系統發展概況和研究方向，然後以srd的功能構成為線索分部分進行介紹： （ 1 ） srm的特性及控制策略分析，在電感分段線性化等簡化條件下分析得出了各個轉子位置角度區間的電磁、電流和轉矩特性並分析了控制策略； （ 2 ）分析設計了h橋式功率變換器的設計和工程實現的方法，並設計了基於這種功率變換器的換相邏輯； （ 3 ）分析設計了以dsp為核心的控制器以及控制方法，並介紹了該控制器的軟硬體實現； （ 4 ）介紹了如何用delphi編制實現上位機監控程序。
  5. All the contents are developed around a set of scaling laws taking the form of exponentials which relate to almost all the issues of complexity including fractals, chaos, strange attractors, localization, and symmetry breaking, etc. the main work can be summarized as follows : starting from the law of allmetric growth three fractal dimensions in a broad sense are derived, and according to these dimensions, geographical space is divided into three levels, i. e., real space, phase space, and order space, each of which corresponds to a kind of dimension. based on the idea of spatial disaggregation and using the rmi ( relationship - mapping - reversion ) principle, the urban system is formulated as three scaling laws of the three spaces, including number law, size law, and area law, which can be transformed into a set of power laws such as allometric law and zipf ’ s law associated with fractal structure

    從異速生長律的縱向、橫向和切向三個角度將地理空間劃分為實空間、相空間和序空間，分別對應于空間系列、時間序列和等級序列三個層面，每個層面的測度各有自己的空間維度。基於「空間循環細分-等級體系-網路結構」的數理等價關系，利用rmi （關系-映射-反演）原則，成功地實現了城市系統宏觀模型的理論抽象，將空間復雜性問題表徵為簡單的指數式標度定律（包括數量律、規模律和尺度律） ，這一組標度律可以與一組冪次定律（包括具有分形性質的規模-數目律、異速生長定律和三參數zipf定律）互為變換。
  6. Then, taking into account the effect of the compression of the approach roadway and the differential slope of the bridge slab, the author analyzes the dynamic response of man - vehicle - road system when the vehicle approaches and leaves the bridge by means of laplace transform, the curve of man ' s acceleration versus time, the vertical force between the vehicle and road versus time, the man ' s maximum transient vibration value and the maximum force between the vehicle and road are got, and the program about the calculating progress above are edited. based on the analysis above, the influence on the maximum transient vibration value of some parameters about the vehicle and road such as the movement direction and speed and weight of the vehicle, the differential slope of the bridge slab and the length of the approach slab, are studied, and some conclusion are given

    分上橋和下橋兩種情況，考慮車路耦合和橋面沉降坡差的影響，對車輛通過設和不設搭板的路橋過渡段時「人?車?路」系統的相互作用用拉普拉斯變換法進行了動力響應分析，得到了人的加速度及路面對車的垂直作用力隨時間的變化曲線、人的加速度最大瞬態振動值和路面對車的最大作用力，分析了車輛的行進方向、速度和載重，橋面沉降坡差和搭板長度等車和路各參數對計算結果的影響，並編制了相應的計算程序。
  7. Firstly, we analyze the transient and steady character of single phase high - impedance grounding fault. secondly, based on wavelet analysis on checking mutational signal and direction high frequency protection theory, utilizing zero sequence current and module current, this paper provides a new scheme including fault starting element, fault phase selection element, directional element and main criterion. this scheme can bear high impedance and is immune to system surge and frequency warp, which gets over the shortcoming of the lack of sensitivity

    由於現有的保護方案無法快速有效地切除此類故障，本文在詳細分析了單相高阻接地故障的穩態和暫態特性的基礎上，從小波分析原理出發，利用小波變換檢測突變信號的原理，以零序電流、模電流等為研究對象，結合方向高頻保護的原理，設計了一套包含啟動元件、選相元件、方向元件、主保護的保護新方案。
  8. When generator runs at conversation states from synchronous speed to super - synchronous speed, the excitation current of oppositional phase sequence should ensure the current waveform smoothly transform

    當發電機運行於同步速向超同步速過渡轉換狀態時，需向轉子饋入反相序的勵磁電流，且保證勵磁電流的波形平滑連續。
  9. So, in this paper, it does the research of the bidirectional conversion between uml and xyz / adl. in this way it combines the oo visual modeling language and formal method based on temporal logic together to describe software architecture, and so to find how to apply the formal method to real software development to promote the research not only on main technologies in software but also on formal method

    基於此，本文開展了對基於時序邏輯的軟體體系結構描述語言xyz / adl和uml之間的雙向轉換問題的研究，通過研究二者之間的轉換，實現將基於時序邏輯的形式化方法與面向對象的可視化建模語言相結合描述軟體體系結構，來探討如何將形式化方法應用於實際的軟體開發過程中，這樣不但能促進對當前軟體主流技術的研究，而且能促進對形式化開發方法的研究。
  10. The main research content of the article is involved as follows : ( 1 ) the research and discussion of the quantitative metallographic analysis methods and the measuring methods of micro hardness. ( 2 ) the application of digital image technique in metallographic image preprocess such as gray level transformation, dichotomy, noise eliminating, dilation and erosion, image enhancement, boundary detection, etc. the application of the wavelet and multi - resolution analysis in metallographic image procession to improve the measuring accuracy and efficiency. the application of the region growth and mathematical morphology in analyzing image parameters to improve the flexibility and exaction

    本文的主要研究內容： （ 1 ）定量金相分析和顯微硬度測量的方法研究； （ 2 ）利用數字圖像處理技術，實現金相圖像的灰度轉換、二值化、噪音消除、膨脹收縮、圖像增強、邊緣提取等預處理；引入小波理論、基於數學形態學的區域生長法對采樣圖像進行分析，實現了對採集圖像邊緣的有效提取，從而提高了測量精度； （ 3 ）開發了金相圖像分析系統的主體結構（硬體結構和軟體結構） ； （ 4 ）採用windows開發平臺的面向對象程序設計語言microsoftvisualc + +進行系統的模塊化設計； （ 5 ）提出了採用多模式的知識表示方法建立知識庫，應用正反推理、模糊數學模型、基於規則的模式匹配模型建立金相分析專家系統。
  11. The sequences are transformed to a relative sequence, in which all the segments are normalized by the previous segment. the relative sequences are categorized and indexed by suffix tree, and the result of the suffix tree search is the potential similar subsequences

    通過將序列變換為相對序列，實現了對序列中任意位置、任意長度子序列的規范化；為了提高查詢效率，將相對序列的特徵向量進行離散化分類，並使用后綴樹進行索引。
  12. We intercept and capture the read and write system calls via putting the nvram on the request queue. then observing the capacity of the " dirty " data, we redirect the writing direction to the hard disk while detecting the proportion of the " dirty " data exceeds the limit

    通過文件系統對數據讀寫操作流程的分析，在系統的request隊列中將其讀寫的對象置換為nvram ，從而實現數據讀寫的截取和轉向，然後對nvram的臟數據容量進行檢測，當其到達nvram容量的一定比例后，調用相應的程序把臟數據對外設回寫。
  13. But with the improvement of design and test technique, translating the test vector from the design to test system is becoming more and more difficult. so how to solve the difficulty efficiently is an important research direction. this dissertation studies the different test vector format languages and ic test program languages, introduces test development system architecture and components, discusses the key issues in practical application of test vector translation and gives the solutions

    本文研究了多種測試向量格式語言和測試程序語言，系統介紹了測試開發系統的體系結構以及各個組成部分，介紹了當今的測試開發系統方面的研究成果，詳細分析了在測試向量轉換系統中的測試向量周期化轉換的關鍵問題，並給出相應的解決方法及其演算法實現。
  14. For example, if you consider an image rendering grid, the data that makes up the original image description and the code functions or applications that converts this vector data into the final image will remain the same

    例如，如果您考慮一個圖像呈現網格，構成原始圖像描述的數據以及將這些向量數據轉換成最終圖像的代碼（函數或應用程序）都是相同的。
  15. How to avoid such a low, homogeneous competition, reduce the waste of resources, improve the level of competition, and promote the orderly development of the various local economies are the research focuses of this article. based on the results of predecessors, using strategic management, regional economics and game theory and other relevant theories and the perspective of competitive advantages, confrontation and cooperation in the context of local government in attracting foreign investment in horizontal competition for theoretical and empirical analysis, the study attempts to get some useful enlightenment and policy recommendations, thus to a certain extent, avoid industrial convergence, as well as other short eyesight activities

    如何避免低水平、同質化的競爭和資源浪費，提高競爭水平，促使各個地方經濟協調有序地發展系本研究關注重點，基於前人的成果，研究試圖以戰略管理、區域經濟學及博弈論等相關理論為指導，從競爭優勢，對抗與合作的角度對地方政府在吸引外資中的橫向競爭行為進行理論和實證分析，以期得到有益的啟示和政策建議，從而在一定程度上規避各地產業趨同，以及以土地價格和稅收換取資金的短期行為。
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