有限代數 的英文怎麼說

中文拼音 [yǒuxiàndàishǔ]
有限代數 英文
finite algebra
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 代 : Ⅰ動詞1 （代替） take the place of; be in place of 2 （代理） act on behalf of; acting Ⅱ名詞1 （歷...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 有限 : limited; restricted; finite; a little; not much
  1. For a class of quadratic finite element diseretization systems of an elliptic boundary problem with jump coefficients under the unstructured quadrilateral grids, we are concerned with two kinds of quadratic lagrangian finite element equations, by analyzing the relationship between the linear finite element and quadratic finite element basis functions, a hew amg method is designed

    摘要針對一類帶間斷系數的橢圓邊值問題，在非結構四邊形剖分下，討論了兩種二次拉格朗日有限元方程的代數多重網格法，通過利用雙線性元和二次元基函數之間的表示關系，給出了一種新的網格粗化演算法和構造提升運算元的代數途徑。
  2. This research work on bird striking has a long history and already got plentiful achievemellts in theories and experiments, howevef, still a long way no doubt waits to go for sophisticated research work on it more detailed to apply to airframe engineering quantitatively in combination wth the technical reformation of the birdstrike experimelltal system in our laboratory, this thesis deeply studies and analyses the numerica1 computation and simulation methods to birdstrike dynamic response problem based on finite - elemefit - method ( fem ) numerical emulation and modem large - scale scientfic computation software

    本文結合我公司鳥撞實驗體系技術改造項目，應用有限元數值計算模擬技術及現代大型科學計算工具，對鳥體撞擊飛機風擋結構的動力學響應問題進行了系統學習與研究探討，初步掌握了科學計算方法，獲得了計算模擬的實踐經驗，為今後深入應用大型科學計算手段進行撞擊類科學問題的研究以及深入應用於工程實踐奠定了強有力的工作基礎。
  3. The findings of this thesis reflect that the object - oriented method is an effective means used in developing finite element analysis software, compared with traditional method it possesses the advantages of being more structured, easy to be compiled, maintained and extended and the program code can be much more reused. the oop method not only improve the functions of finite element software but also realize the congruity between the computing model and physical model in the real world, and promote the integrity technique of cad / cae

    本文結果表明，面向對象方法是一種強有力的工具，採用面向對象方法開發大型有限元分析軟體是一種非常有效的方法，與傳統的有限元程序相比，面向對象有限元程序更加結構化、更易於編寫、更易於維護和擴充，程序代碼的可重用成分更大，它不僅能提高有限元軟體的功能，而且能實現數據模型與計算機模型以及現實世界物理模型之間的一致性，方便太原理工大學碩士學位論文cad / cae系統的集成。
  4. The signal we named it fundamental wave ; according to the fundamental wave, coefficients of the fundamental wave can be lined in a sequence. when the unique of the dissolve of the fundamental wave can be confirmed, the sequence of the coefficients can be regarded as one of representation forms of the signal itself ; theory of dissolvable signal shows that when order of the matrix of fundamental wave sampling equals to number of fundamental waves, the sequence of the sampling values from sampling points must be matched one by one with the sequence of the coefficients of fundamental waves. the sampling composed by sequences of the sampling values must be full sampling ; the relevant deductions of the theory of dissolvable signal shows that when sampling the signal, sampling frequency must be lager than the ratio of the number of fundamental waves to the occupation time of the fundamental waves ; to band - limited signals, when the fundamental wave is a sine signal, the results from the relevant deductions of theory of dissolvable signal is coherent to the classic sampling theory

    本文通過分析認為，當信號集中的任一信號可表示為一系列已知信號的線性代數和時，信號集便構成可分解信號集，已知信號稱為基波信號；對可分解信號而言，基波系數構成一序列，當對指定的基波信號集分解唯一確定時，系數序列本身便是信號的一個表示；可分解信號采樣定理指出當基波樣值矩陣的秩等於基波數時，則由采樣點處的采樣樣構成的樣值序列必與基波系數序列一一對應，從而由該樣值序列構成的采樣必為完全采樣；可分解信號采樣定理中的推論指出，對信號集進行采樣，采樣頻率必須大於其信號分解的基波數與其對應時長之比；對有限帶寬信號，若基波信號為正弦信號時，由可分解信號采樣定理推論給出的結論與經典采樣定理一致。
  5. With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed

    本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。
  6. In chapter 3, we study the property of complete exceptional sequence. in chapter 4, we make research on the hochschild cohomology of endomorphism algebras of complete exceptional sequence over hereditary algebras

    第三章，我們證明了有限維遺傳代數中，完備例外序列的維數向量的性質定理以及完備例外序列的誠實性。
  7. In recent years, the endomorphism algebras of complete exceptional sequence of type an and an have been researched. furthermore, the inductive formula of the number of complete exceptional sequence over hereditary algebras of finite representation type has been obtained

    對于例外序列自同態代數的研究中，有關a _ n型， a _ n型的完備例外序列的自同態代數的結構都已經清楚，並且進一步得到計算有限表示型遺傳代數中完備例外序列個數的遞推公式。
  8. This thesis is composed of following parts : the fundamental theory of the modern cryptology is briefly researched, in which the mathematic model of cryptology, data encrypt principle and galois field theory related with elliptic curve crypto is discussed

    論文的主要內容為： 1研究了現代密碼學相關的基本理論，介紹了密碼系統的數學模型、數據加密原理和與橢圓曲線加密密切相關的有限域理論； 2
  9. The group action institution adopts the representation to settle the contradiction about the multitudinous party and the limited legation space, but the problem of how to explain

    群體訴訟制度採用代表制來解決當事人人數眾多與訴訟空間容量有限的矛盾，但是，如何解釋代表人的正當性是其必須面對的問題。
  10. Ltd have used it to disign product on this system. tribon has database itself that is used to manage all special data, but it is not fit for domestic factories, furthermore, its openness is also limitary, do n ' t surport the openness and interconnection of morden popular database, so studying and developing tribon is necessary and practical

    Tribon軟體本身具有專門管理各個專業數據信息的數據庫，但它不適用於國內的造船廠，而且他的開放性也很有限，不支持現代主流數據庫的開放互連功能，因而，對tribon軟體進行研究和開發是很有必要和實用價值的。
  11. Prime number theorem of an algebraic function field of dimension 1 over a finite field

    有限域上單變量代數函數域中的素數定理
  12. Through the analysis we found that the effect will become more obviously with the increase of thickness or width of superstratum and the decrease of the coefficient of foundation bed ; ( 3 ) anisotropy and nonlinear elastic f. e. m. model has been established and the effect of stress dispersion in compound two - layer foundation was analyzed on the base of the model. from the analysis we can conclude that the coefficient of subsidiary stress dispersion will amplify with the increase of thickness or width or stiffness of back - up coat ; ( 4 ) the formula which can be used in conventional calculation has been deduced for calculating the coefficient of subsidiary stress dispersion and it also has been affirmed to be reasonable through the checking calculation ; the whole theory of compound two - layer foundation has been brought forward in this paper and it ' ll enrich the theory of composite foundation

    針對以上問題本文做了以下一些工作並得到若干結論： （ 1 ）提出了「復合雙層地基」的概念，並通過工程實例證明此概念的提出有其合理性和必要性； （ 2 ）用彈性地基梁理論證實了復合雙層地基確有應力擴散效應，且擴散效應隨上覆硬層厚度、剛度的增加而增大，隨下臥層基床系數的增大而減小； （ 3 ）建立了非線彈性、各向異性有限元模型，並以此為基礎分析了復合雙層地基的應力擴散效應，得到附加應力系數隨加固層厚度、寬度、剛度的增加而增大的結論； （ 4 ）推導了可用於常規計算的復合雙層地基應力擴散系數公式，並代入工程實例進行了驗證。
  13. And the consumption which are caused by the deformation of the rock mass and the consumption which fill all the void space of the joint can be got. then the block coefficient k of the this geologic condition can be got by the actual consumption of the injection grout in the practical grouting

    本論文中主要通過有限元法來計算巖體的變形，並進而求得由巖體變形引起的那部分注漿量和完全充填節理裂隙的注漿量，再根據實際工程的實際注漿量來計算試驗所代表的地層的充填系數k 。
  14. 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。
  15. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  16. For practical application the integrals in (3. 79) and (3. 80) have to be replaced by finite series.

    為了實際應用，（379）和（380）里的積分項必須用有限級數代替。
  17. ( 2 ) based on the wave equation in the acoustic fluid space and the theory of thin - wall structure, the non - symmetrical coupled structure - acoustic dynamic equation without damping is studied. the non - symmetric system of the finite element model for coupled structure - acoustic response is solved by the conjugate subspace iteration method

    由聲空間波動方程和薄板理論出發，對聲場?結構耦合系統的模態分析提出了有限元數值方法，採用共扼子空間迭代法對非對稱特徵方程進行處理，採用靜凝聚法消除質量矩陣的奇異性。
  18. This paper set up a geological model of sliding mass by geological condition analysis and selection cross section of character representation of guishan sliding mass. the stability of sliding mass is calculated and evaluation under bench stoping and deck excavation in terms of six excavation schemes with limit equilibrium method. there dimensional finite element method is applied to study the stability of sliding mass to the deck excavation schemes by means of computer simulation and calculation

    通過對滑坡體工程地質條件的分析，選取滑坡體的代表性剖面建立了滑坡體的地質模型，選取極限平衡方法就滑坡體在臺階式開挖和整體開挖兩種不同開挖方式共6種具體開挖方案條件下，對滑坡體的穩定性進行了定量計算評價，提出臺階式開挖和整體開挖兩種不同開挖方式的的各開挖方案的比較結果，然後就確定的具體開挖方案開展三維有限元數值計算，並進行評價，以達到相互校核、相互驗證的目的，最後，確定出工程應用的開挖施工方案。
  19. Firstly, through the research of slope stability analysis method on slice mode and response surface method, finite element method in classical response surface method is replaced by iterative calculation process of implicate stability coefficient expression on slice mode, while aiming at that there is no explicit expression in slope reliability calculation and the specialty of stability coefficient calculation method and classical response surface method. then confirm the limit state equation of slope reliability analysis on slice mode

    首先，本文通過對邊坡穩定性分析方法條分理論和響應面法的研究，針對邊坡可靠性計算往往沒有明確的解析表達式，以及穩定性系數計算方法和傳統響應面法的特點，將響應面中的有限元數值模擬以條分模式中穩定性系數隱式方程的迭代計算方法代替，確定條分模式下的邊坡可靠性計算的極限狀態方程。
  20. A note on the finitistic dimension of dual extension algebras

    關于對偶擴張代數有限維數的注記
分享友人
分享到 Line

分享到臉書