虛運算 的英文怎麼說

中文拼音 [xūyùnsuàn]
虛運算 英文
pseudo-ops
  • 虛 : Ⅰ名詞1 （空虛） void; emptiness 2 （政治思想等方面的道理） guiding principles; theory 3 （二十八...
  • 運 : Ⅰ動詞1 （物體位置不斷變化） move; revolve 2 （搬運; 運輸） carry; transport 3 （運用） use; wield...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 運算 : [數學] operation; arithmetic; operating
  1. Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports

    首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。
  2. Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box

    綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。
  3. During simulation of kinematic calibration of virtual axis machine tool, indirect method is used for measuring its position and orientation ; meanwhile jacobean matrix regrouping method is used instead of arduous optimization to avoid measurement noise maginification

    摘要在對虛擬軸機床進行運動學標定的模擬計算過程中，採用間接測量法對虛擬軸機床的運動進行間接測量，然後通過矩陣重構的方法來解決測量噪聲的干擾問題。
  4. Manipulate mechanism with concentrative link lever has important significance to improve maneuverability of bulldozer currently. this thesis includes : designing manipulate mechanism with concentrative link lever and simply calculating force and displacement for operation, based on the referring existing manipulate mechanism of bulldozer ; using high - grade 3 - dimensional plotting software ug ( unigraphics ) to sculpt ; using adams ( automatic dynamic analysis of mechanical systems ) to establish virtual prototyping model and do kinematic simulation. the results verify the rationality of this mechanism and provide the basis for trial - manufacture of physical prototyping and betterment design

    本文做的主要工作是：參考推土機原有的變速轉向操縱機構，設計了集中連桿操縱機構並進行操縱力和操縱行程的簡單計算；使用高檔三維造型軟體ug （全稱unigraphics ）進行推土機集中連桿操縱機構的造型設計；應用機械繫統運動學/動力學模擬分析軟體adams （ automaticdynamicanalysisofmechanicalsystems ）對所設計的機構建立虛擬樣機，並進行運動學模擬分析，驗證了機構設計的合理性，為物理樣機的試制和改進設計提供了依據。
  5. Until now, when climate modellers began to run one of their models on a computer, they would “ seed ” it by feeding in a plausible, but invented, set of values for its parameters

    目前為止，當氣候模型學家在計算機上運行他們的模型之一時，他們會通過為模序的參數設置一組可行但是虛構的數值來給這個模型「播種」 。
  6. First, we propose a kind of constant false alarm rate ( cfar ) target detector to find potential targets from scenario

    利用恆定虛警率（ cfar ）檢測運算元，從場景中發現潛在目標。
  7. First we consider the spectral properties of the operator corresponding to this system and obtain that all points on the imaginary axis except for zero belong to resolvent set of the operator, zero is an eigenvalue of the operator and its adjoint operator with geometric multiplicity one

    先討論了對應于該系統的主運算元的譜特徵並且得到了在虛軸上除了0點外其它所有點都屬于該主運算元的豫解集， 0是該主運算元及其共軛運算元幾何重數為1的特徵值。
  8. It can be used in any complex environment, can locate all paths from transmitter to receiver which avoid redundant calculation, and it is a standard 3 - d forecast model ; in addition, it is a point to point ray tracing method based on specular theory which do n ' t carry out the receive test ; furthermore the model adopt the reverse arithmetic which exert the tree concept in data frame and establish a virtual fountain tree permanently, the proagmme can back - search the virtual fountain tree when it is running. these operation increase the calculate speed and it result in the higher receive efficiency and precision. the thesis design a programme to compare the prediction results based on ray tracing method of virtual fountain tree between the measurement results and prediction results based on the other transmittion models. the comparsion result indicate the new model is a better model

    它可應用於任何復雜的傳播環境中，能找到發射機到接收機之間的所有電波傳播路徑而無須冗餘的計算，是一種準三維的預測模型；另外，從本質上講，它仍然是一種基於鏡像理論的點對點的射線跟蹤法，所以它無須進行接收測試；而且由於採用了反向演算法，運用數據結構中多叉樹的概念，先確定需要計算的場點位置，找出所有能從源點到達場點的射線，並且可一次性建立一個虛擬源樹，以後每次的計算只要通過對該樹進行後序遍歷即可，大大提高了運算速度，因而有較高的接收效率與精度。本文對該模型進行了相應的模擬，並將其預測結果與實測結果以及基於cost231經驗性模型和基於強力射線跟蹤確定性模型的預測結果進行了比較，結果表明了該模型的優越性。
  9. The low efficency arise from two factors : one is that we do n ' t understand multibody system as deep as possible, resting on " there are so many trees as one ca n ' t see the forest ". the other is that the algorism should hardly avoids void computing possiblly - - adding, minusing or multipling by zero, and ca n ' t reach the precision computing - - each computing is necessary, and the latter computing use the formal results as it can as as possible

    計算效率不高的原因有二、一是對機械多體系統認識深刻程度不夠，停留在「只見樹木，不見森林」的層次上；二是演算法上應該竭力避免虛運算? ?與零相加減、與零相乘和重復運算等，但由於多體系統動力學的復雜性、強非線性和人們對其認識現有深度的不夠，故未能實現所謂的「精益運算」 ? ?每步運算皆為必須，且后續運算應盡能借用已有結果。
  10. Grid computing is a rapidly emerging technology that can bring together the collective power of thousands or millions of individual computers to create a giant " virtual " system with massive computational strength

    網格運算是近年迅速興起的新技術，能把千千萬萬臺電腦連結起來，組成一個具備龐大運算能力的巨型虛擬系統。
  11. Only the image data within the virtual - loops are processed, so the time cost of calculation is reduced

    系統只處理虛擬線圈內的圖像，由此降低了運算時間。
  12. By synthetically using contract net protocol, the traditional mrp arithmetic theory, goal programming, fuzzy integrated evaluation, a production planning making algorithm for ve is presented creatively. the available - to - promise calculation algorithm model based on goal programming is discussed in details, and an improved simplex method is presented. the mathematics model of bid documents evaluation problem based fuzzy integrated evaluation and the fuzzy relation synthetic is presented in details

    3 、綜合運用合同網協議、傳統mrp演算法的核心思想、目標規劃、模糊綜合評判等內容，創造性地提出了一種虛擬企業的成員企業之間生產計劃的制訂演算法模型;詳細討論了基於目標規劃的產品可交付量的數學模型，並且提出了一種改進的單純型解法;給出了基於模糊綜合評判的標書選擇問題的數學模型，以及模糊關系合成運算的具體演算法。
  13. Both ratio of average ( roa ) and cross - correlation method use local statistics to judge road. they perform good detection while smoothing speckle. moreover, they both have constant false alarm rate ( cfar ) which is important in radar target detecting

    本文所採用的均值比例運算元和互相關運算元利用圖像局部的統計信息進行判決，在檢測道路基元的同時對圖像進行局部平滑以降低相干斑干擾;並且兩個運算元都具有恆虛警特性，門限值由給定的虛警概率確定。
  14. An operating system provides a virtual computing environment in which programs operate as if they were in sole possession of the computer

    作業系統提供虛擬的運算環境，讓程式在運作時就像是獨占這臺電腦一般。
  15. It is shown that, due to the real operations, the computation of the bi - orthogonal analysis window, the transforms coefficients, and the reconstruction of the original signal in rdgt case, can be significantly reduced as compared with the computation of those in the cdgt case. and the similarity between the rdgt and the discrete hartley transform ( dht ) allows the rdgt to utilize the fast dht algorithms for fast computation. meanwhile, the rdgt bears a simple relationship with the cdgt such that the cdgt coefficients can be directly computed from the rdgt coefficients

    主要內容有：研究了一維和二維實值離散gabor變換（ rdgt ）方法，這種方法由於僅涉及實數運算，並可利用快速離散hartley變換演算法加速變換，因而在計算雙正交分析窗、變換系數以及信號重建方面都比復值離散gabor變換（ cdgt ）簡單易於實現，並且rdgt系數與cdgt系數的實部和虛部有著非常簡單的關系，因此前者的計算完全可以替代後者的計算，從而達到明顯減小gabor變換計算量的目的。
  16. In this thesis, a intellectual instrument for on - line monitoring leakage current of moa was developed. the contents are listed below : ( 1 ). using the virtual instrument technology, the digital waveform analysis method based on dft and the ready module of plural operation in labwiew and then developing a multi - functional intellectual device for on - line monitoring leakage current of moa

    本文進行了智能式moa泄漏電流在線監測裝置的研究，主要內容如下： 1 ）應用虛擬儀器技術，基於dft的數字波形分析法和labview中現成的復數運算模塊，研製出一套智能式moa泄漏電流在線監測多功能裝置。
  17. In virtual reality technology, factors that affect the sense of reality most are the precision and speed of floating point calculation

    摘要由於決定在虛擬現實技術中決定現實感最主要的問題指標就是浮點數的運算的精度和速度問題。
  18. There is one coding scenario that will pass the compiler but that will result in an unverifiable assembly : calling a virtual function through an object instance using the scope resolution operator

    以下編碼方案可以通過編譯器，但會導致不可驗證的程序集：使用范圍解析運算符通過對象實例調用虛函數。例如：
  19. Taking the advantages of the pc ' s powerful ability in high - speed data acquisition, controlling, operation, analyzing processing and colorful graphic human - machine interface, people can build virtual instrument ( vi ) with various functions and graphic front pane which combines with the function of traditional instrument, integration of operation software, circuitry and computer

    虛擬儀器藉助于pc高速數據採集、控制、運算、分析、處理的超強功能，及其強大的圖形環境、界面設計和在線幫助功能，建立起功能多樣具有圖形化儀器面板的虛擬儀器。這種包含實際儀器的使用和操作信息的軟體、硬體與pc相結合構成的儀器，稱之為虛擬儀器。
  20. This article studies application of genetic algorithm in virtual enterprise production planning and control system ， and discusses the methods and skills of using genetic algorithm. at last, take a concrete application example as the background, the thesis designed a frame of synergic production planning and control information system of ve

    論文對遺傳演算法在虛擬企業計劃與控制優化中的應用進行了初步研究，針對虛擬企業生產計劃和控制中的兩個具體問題，設計了適合該問題的數學模型、編碼方法、適應度函數和遺傳運算元，探討了用遺傳演算法解決實際問題的方法和技巧。
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