無限計數問題 的英文怎麼說

中文拼音 [wúxiànjìshǔwèntí]
無限計數問題 英文
count-to-infinity problem
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 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
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 問 : Ⅰ動詞1 （請人解答） ask; inquire 2 （詢問; 慰問） question; ask about [after]; inquire about [aft...
  • 題 : Ⅰ名詞1. （題目） subject; title; topic; problem 2. （姓氏） a surname Ⅱ動詞（寫上） inscribe; write
  • 無限 : infinite; limitless; boundless; immeasurable; unlimited
  • 計數 : count; tally; counting計數卡 numbered card
  • 問題 : 1 （需回答的題目） question; problem 2 （需研究解決的矛盾等） problem; matter 3 （事故或意外） tr...
  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. In this article, firstly the background of the textile trade conflicts within sino - us or sino - euro are introduced, thus learn that how to discern and dodge the foreign trade risks, how to choose the appropriate investment projects have already become one of the most important questions for exporting companies on foreign trade affairs well - known as high investment and high risk. so the main text makes a risk analysis qualitatively and quantitatively on a textile - exporting trading company from three angles of statistic 、 game theory and portfolio theory, which is the main content that we studied. firstly, the statistic article adopts data of the transaction closing price of the textile clothing index in shenzhen stock exchange at the end of each quarter as well as several other kinds of data reflecting the macro - economic changes, performs an empirical analysis of these data according to the theory of co - integration test 、 granger cause test and impulse response function of time series in economitric, and learn that the impact to ti is more obvious by the economic index reflecting local commodity price level and economic prosperity degree home and abroad, as well as the impact degree and the time lag degree, and knows the macro - economic risks faced by textile business enterprises ; after that by the game theory angle we analyze exactly the managing risks faced by one textile export corporation named beauty. from the game expansion chart the system arrangement between censor ways by exportation goal countries and exporting strategies by the exporting enterprises has been analyzed. involving the benefit assignment between them both the limited rounds and infinite rounds negotiations of cooperation games have been studied, and then country responsibility and the enterprise managing risks on foreign trade affairs and so on have been analyzed exactly ; in order to realize the investment multiplication in the certain degree to disperse the risk, the

    本文首先介紹了中美、中歐紡織品貿易爭端的來龍去脈，由此可知在涉外貿易這種以高投入、高風險著稱的行業里，如何甄別和規避外貿風險、如何選擇合適的投資項目已經成為外貿企業的首要問題。因此，正文分別從統計學、博弈論和投資組合三種角度對涉外紡織品貿易公司風險進行了定性和定量的分析，這也是本文的主要研究內容。首先，統計學篇選取了深圳證券交易所行業分類指數?紡織服裝指數（ ti ）每一季度末的交易收盤價和若干種反映宏觀經濟變化的指標，利用計量經濟學中時間序列的協整檢驗、 granger因果檢驗和脈沖反應函數等理論做實證分析，從而得知反映國內物價水平和國內外經濟景氣程度的經濟指標對紡織板塊上市值的沖擊比較明顯，且可知沖擊程度和時滯度，進而分析出涉外紡織企業所面臨的宏觀經濟風險;接著，從博弈論的角度具體分析一家紡織品出口公司（ beauty ）的外貿活動所面臨的各種經營風險，該篇從博弈擴展圖入手，分析了出口目的國審查方式與本企業出口策略之間的制度安排;並圍繞雙方的利益分配，研究了有限回合和無限回合合作談判博弈，然後具體論述了國家責任和企業涉外經營風險等問題;在一定程度上為了實現投資多元化來分散風險的目的，投資組合篇從經典的markowitz模型著手，在一些特定條件的限制下，給出了一個相應的投資組合模型。
  3. This paper introduces a project based on code division multiplexed that is used to realize four el channels ' s wireless transportation. after briefly introducing the whole structure of the device of transportation, this paper introduces mainly implemention of the hardware. futhermore, the discussion concerning the selection of principles in code acquisition and the threshold setting of code acquisition on continous pilot in the receiving unit is given. at the same time, the methods about how to design the parameters of dll is introduced in this paper. in addtion, how to solve the actual problems in debugging the hardware is also provided

    本文提出了一種基於碼分復用技術的四路e1數據擴頻無線傳輸設備的實現方案。在介紹整個擴頻數傳設備實現框圖的基礎上，重點介紹了硬體平臺的實現；接收單元捕獲策略的研究及其捕獲門限的確定方法；以及接收單元dll環路參數設計方法；並給出了調試過程中遇到的實際問題及其解決措施。基於調試所遇到的問題，論文的最後提出了這套數傳設備的改進方案。
  4. Associated with a project of the planned xuefengshan tunnel with 7. 6 km long during the construction of shaoyang to huaihua expressway in hunan province of shanghai to ruili national trunk highway, this paper firstly makes an introduction of the frequently - used analysis & computation methods for tunnel supporting structure. then, based on the analysis of the basic theory about the interaction mechanism of surrounding rock and support structure, a spatial computation model is made, a coupling numerical computation method with 3 - d elastic - plastic finite element and infinite element is proposed, and a comprehensive analysis has been made to the effects of the overall stability and safety of the surrounding rocks of different characteristics, different classes and under different construction methods. and thus the problem of 3 - d infinite region to which applying the general finite ca n ' t do has been resolved

    6公里的雪峰山隧道工程，首先介紹了隧道支護結構的常用分析計算方法；然後通過對隧道施工過程中，洞室穩定性與支護結構相互作用機理的深入分析，建立了隧道施工過程的空間計算模型，提出了採用三維彈塑性有限元-無限元耦合的數值計算方法，綜合分析了隧道在不同圍巖特性和圍巖類別條件下，以及不同施工開挖方案等對隧道圍巖整體穩定和安全性的影響，從而解決了通用有限元方法難以解決的隧道三維無限域問題；其可充分發揮有限元法在分析非線性方面的有效性和成熟性，以及無限元法在分析處理無限域和半無限域方面的精確性和簡便性，為隧道施工過程中圍巖的穩定性分析開辟了一條新的途徑。
  5. Thirdly, it is supported by java technology. java language is not only a right programming language to build agent, but also it has some characters such as architecture neutral and higher safety, running java applet, program can increase the functions of the client, lighten the burden on the server, as well as can operate the client contents according to the privilege assigned, and in order to increase the safety of system. finally, in the thesis, by using the knowledge related probability and statistics, author puts forward a kind of method which can make the grade mark quantifying, and with this method, the problem which is how to get an accurate evaluation for the subjective test questions that learners answer in exam, is solved primely

    本文針對以上缺點，提出基於agent的個性化遠程教學系統，本系統中引入分散式人工智慧（ dai ）領域中的agent技術，在系統中構造一個學習者agent ，它隨時跟蹤學習者的學習過程，記錄其興趣、愛好等個性特徵，並適時地調整對其採用的教學策略，有效地解決了目前的系統智能性較低的缺點；其次，本系統採用xml技術來組織教學內容，改變了html中內容和形式捆綁在一起的缺點，使得內容和形式相分離，從而可以為太原理工大學碩士學位論文不同認知水平的學習者提供不同的教學內容，增強了交互功能;另外，本系統採用java技術， java語言不僅適合作為agent的開發語言，而且java語言具有平臺無關和安全性高的特點，通過運行javaapplet來增強客戶端的功能，減輕服務器端負擔，並且這些appiet根據客戶賦予的權限對客戶端內容進行操作，增加了安全性;最後，本文運用概率論與數理統計學中方法，提出一種把等級成績數量化的方法，很好地解決了對學習者考試中主觀題的準確評價問題，為實現個性化教學提供了一個較準確的依據。
  6. Point to above problems, under the financial support of the national natural science foundation ( exploration of high tech and new concept and new conceive ), the excellent young teachers program of ministry of education and national excellent doctoral dissertation special foundation, the static and dynamic real - time computation of elasticity - plastic mechanics, solving method of fuzzy finite element and other problems were studied in this paper. and some achievement was gained as following : ( 1 ) based on the positive definiteness of system stiffness matrix of finite element that was modified and the form of potential energy function of elastic body, the linear system of saturation mode ( lssm ) was introduced into the neural computation of finite element, by which the no - error solving of finite element neural net computation was realized in theory

    針對上述問題，在國家自然科學基金（高技術新概念新構思探索） 、教育部優秀青年教師資助計劃、高等學校全國100篇優秀博士學位論文作者專項基金等的資助下，本文對彈塑性力學問題的動靜態的實時計算、模糊有限元的求解方法等問題進行了系統和深入的研究，取得了以下成果： （ 1 ）根據有限元總剛矩陣經修正後具有正定性的特點以及彈性體勢能函數的具體形式，將飽和模式的線性系統（簡稱為lssm系統）引入到有限元的神經網路計算中，在理論上實現了有限元神經網路計算的無誤差求解。
  7. In chapter 3, we give an equivalent form of semi - infinite programming, and a locally convergent ssle method is proposed for sip. we only need solve a linear system equations and a subproblem with a parameter per step, also a modified algorithm which saves cost of computations is given, at the end of the paper, we give a proof of the convergence for the algorithms

    第三章通過適當的變形，得到半無限規劃問題的一個等價形式，並給出一個局部收斂的序列線性方程組演算法，這個演算法在每一步，只需求解一個線性方程組和一個帶參數的非線性子問題，證明了演算法的收斂性，同時，給出了一個修正演算法，與前面演算法相比較，修正演算法節約一定的計算量，同樣具有較好的收斂性。
  8. Optimal periodic control with the lowest operational cost by limiting total substrate discharge mass was studied. through adding new state variable and using supplement functions, the problem with restriction conditions was converted into nonrestriction problem. in addition, the dynamic searching method of optimal step coefficient was developed to modify the conventional gradient method, consequently the calculation problem of the multivariable optimal periodic control was able to be resolved better. it was found that the operational costs of optimal control under various initial states are distinctly different. a new concept of optimal control under optimal initial state was presented. it is pointed out emphatically that to the treatment system without optimal control condition, the suboptimal control with extensive practical value can be realized according to the results of optima control

    著重研究了在限制有機物排放總量時，使其運行費用最低的最優周期控制問題.通過增加新的狀態變量和用補償函數法，將本課題的有約束條件問題化為無約束條件問題，並提出了最優步長參數的動態搜索法來修改傳統的梯度法，從而較完善地解決了多變量最優周期控制的計算問題.研究中還發現了不同初始條件下最優控制所需要的運行費用也大不相同，進而提出了最優初始狀態下最優周期控制的新概念，這對保證出水質量的同時進一步降低污水處理成本來說具有更重要的意義.本文還強調指出：對于尚不具備實現最優控制條件的處理系統，可根據最優控制的研究結果實現具有廣泛實用價值的準最優控制
  9. In this dissertation, the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory, method and the application technique, based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem. the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced, based on the wave propagation theorem ; the arising of the non - unique solutions, which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem, is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples

    第二章在聲波動理論基礎上，詳細地推導出對應于無限域和半無限域的外部振動聲輻射問題的邊界積分方程計算公式；根據fredholm積分理論，對利用邊界積分方程計算振動聲輻射問題過程中解的非唯一性的產生進行了分析和證明；改進了chief法以提高其克服解的非唯一性的有效性和可靠性；對不同條件下奇性系數的計算、強奇性積分的收斂性及其在變量替換時與普通積分的差異性、不同階奇性積分的計算、數值求積分等進行了研究；開發了三次樣條改進chief法計算軟體，並通過算例考核了該方法在特徵波數處克服解的非唯一性的有效性和在保證計算精度的前提下實現剖分粗化以提高計算效率的可行性。
  10. By the analysis of the present computational models and methods on anchor bolts, the author deems that there are some disadvantages in these methods, such as : ( 1 ) the models ca n ' t reflect the relative slide between the bolts and geotechnical mass ; ( 2 ) the division of fem mesh is too complicated ; ( 3 ) some computational parameters of the bolts are difficult to determine

    論文中，通過對目前各種錨桿的有限元計算模型進行比較分析，發現它們存在著如下問題：無法反映錨桿和巖土體間的剪切?滑移作用；有限元網格劃分過于復雜；計算參數難以選擇和確定等。
  11. It is an effective way to solve this problem by combining piezoelectric quartz crystal sensor array with chemometrics. however, there were few reports in designing electric circuit, which would influence the response due to mutually interfering between oscillators. so, it is necessary to design a vibration circuit and develop it into small and convenient instrumentation to overcome this limitation

    另一方面，單一的具有選擇性的傳感器在實際多組分氣體的檢測中受到限制，而採用壓電石英傳感器陣列再結合化學計量學手段進行數據處理卻是解決這個問題的一個有效途徑，然而在它的電路設計方面，由於共振電路間的相互影響，使檢測受到很大幹擾，因此設計一個相互無干擾的起振裝置來解決這個問題是十分有必要的。
  12. The anisotropic property of the generalized difference methods has not been studied until now. in this paper, the anisotropic property of a kind of generalized difference methods is analy - sized and its error estimate is obtained without the limitation of regularity. finally, the numerical examples show that the theoretic analysis is right. in addition, based on the 2 - dimensional quasi - wilson element, the quasi - wilson element in the 3 - dimensional space with application to second - order porblem is presented. lt is proved that it is convergent for arbitrary hexahedron regular subdivision in 3 - dimensional space, and its error estimate is obtained

    本文結合各向異性有限元的研究成果，對基於矩形剖分的一類廣義差分法進行了各向異性分析，給出了與剖分的正則性無關的收斂階估計，並進行了數值試驗，表明這類廣義差分法具有各向異性特徵，可以用於窄邊問題的計算。
  13. Using 3d 20 - node iso - parameter, 3d 12 - node infinite element and 3d 16 - node interface element, a coupled numerical approach for pile group - soil system under lateral loads is set up. a corresponding three - dimensional, nonlinear and elastic - plastic program ( epagpll ), include two materials and four nonlinear constitutive relations, is worked out by fortran 90 computer language. in the analysis the nonlinear e - model, k - g model and cambridge model with two yield surfaces are employed in the analysis of near - field soil, and the nonlinear analysis method is used in the piles - soil interface and distant - field soil

    本人用有限元進行樁體和近域土的分析，對遠域土體採用無限單元，在樁土之間採用接觸面單元，建立了平面8節點環狀單元6節點無限元6節點接觸面單元相耦合的數值計算模型；針對豎直受力樁的流變分析，本人用內嵌于autocad的vba語言編制了前處理程序，可以快速形成包括網格、節點編號、單元編號在內的數據文件，供計算程序使用；同時在前人關于流變問題研究的基礎上，引進土體非線性流變本構模型，利用有限元、無限元、接觸面單元相結合的方法，用c + +語言編制了相應的計算程序。
  14. So it is necessary to reflect the inner reality physical field ' s numerical number analogy method to analysis and improve the magnetic field and the computing accuracy of the cable ' s eddy - current detection. Ｔ his affords helping for the researching of biased cable instrument in the future. first open domain electric magnetic problem ' s breaking method is done with, which supposing fictitious boundary far away from the region. second breaking the infinite region into the finite region and supposing the electric magnetic is too small to be ignored

    通過採用目前處理開域電磁場問題的截斷法，人為地設定一個遠離待求區域的虛擬邊界，將無限區域截斷為有限區域，且認為在該邊界外面的電磁場已衰減得足夠小，小到可以忽略不計，從而令邊界上的電磁場場量為零，在此有限區域內採用較為成熟的Ａ ， Ａ法，並且併入庫侖規范建立數學模型。
  15. At the meantime, the rock mass may alternate between loading and unloading and it exists in certain kind of liquid, such as surface water, unconfined water, confined water etc for its intrinsic crannies. the practical rock mass concerned project must solve the key stability pr oblem after the understanding of the complicated mechanical characteristic and the deformation trends to guide the following project design and construction for the demand of security, economy, feasibility and validity. however, the intrinsic nonlinearness and complexity of the engineering rock mass become the main difficulty to predict the stability and deformation, the corresponding structure design must ensure enough safety with all the determinate or random force combination, so a model without the geometry distortion and constitutive equation warp is necessary to be built for the quantificational analysis of practical structure ' s stress, for the simulation of the real process and for the determinate evaluation system and optimization

    由於實際工程巖體其固有的非線性和復雜性，使得求解對應的諸如其穩定性、變形等問題面臨較大的困難，而有關的工程結構的設計必須保證該結構在外來因素的作用下具有足夠的安全度、經濟性和合理性，這必然要求對巖體及其工程結構的受力與變形有一套量化評判體系和優化技術，抓住實際工程問題的本質特徵並建立可行的符合幾何模擬、本構模擬、受力模擬、過程模擬四原則的求解模型，通過該模型的數值模擬成果來指導巖體工程的設計、施工及運營、管理；而巖體結構面的存在使得基於傳統連續介質力學理論的理論分析和數值模擬面臨巨大的挑戰，物理模擬的試驗周期和成本也大大增加，而巖土體工程問題則成為典型的數據有限、了解程度有限類問題，這類問題的解決需要綜合應用理論分析、經驗判斷、物理模擬和數值模擬等方法，數值模擬可以完成目前許多技術手段無法完成的實驗，如參數控制，復雜條件下的邊界條件的處理，同時數值模擬具有高可重復性，且數值模擬的成本和人力開銷等遠低於物理模擬，因此研究巖土體工程問題的流形元數值模擬方法是一項具有理論和實際工程應用價值的重要課題。
  16. The topic stream extracted from the network flow can be considered as an indefinite data stream, and because of the limit of the memory, the algorithm used in the frequent item statistics should satisfy two requirements : finding thefrequent item by scanning the data only one pass ; and low space and time costs

    網路流量中提取出的主題流可以看作是一個無限的數據流，統計其中頻繁出現的主題可看作是數據流的頻繁項挖掘問題。由於內存的限制，進行頻繁項統計時所使用的演算法需要具備只掃描一遍即可發現頻繁項和低空間開銷及低時間開銷的特點。
  17. In this paper, a three - dimensional ( 3d ) program for the three - dimensional reactive flow fields of complicated geometric nozzle, which governed by the compressible full navier - stokes equations with realizable k - s turbulent model, has been upbuilt by using full implicit couple arithmetic and fvm ( finite volume method ) based on understanding and assimilation of a two - dimensional program group of cr ( chamber - radon ). the new program fulfils the urgent need of numerical tools for simulating three - dimensional reactive flow - fields of hylte ( hypersonic low temperature ) and other latest nozzles, for which cr is out of action in simulation, and can be applied to simulate other chemical laser system, such as chemical oxygen iodine laser ( coil ), overtone fluoride hydrogen, all - gas iodine laser, and so on. furthermore, some related topics about nozzles design and engineer ing also have been discussed

    本文在二維cr （ chamber ? radon ）程序研究的基礎上，採用有限體積方法和完全隱式的耦合演算法，通過求解帶realizablek -兩方程湍流模型的多組分、有反應的三維完全納維埃?斯托克斯（ n ? s ）控制方程，建立了一套能夠對復雜形狀的三維噴管和光腔進行數值模擬的三維程序，解決了連續波df hf化學激光器增益發生器設計缺乏三維數值模擬工具的問題，並用該工具解決了cr程序無法實現的hylte等復雜三維噴管流場的理論模擬問題。
  18. And then moving coordinate system is used to transform the solving problem into a " conjunction " problem. finally, the solution of the problem can be reduced to a series of algebraic equations and solved numerically by truncating the finite terms of infinite algebraic equations

    利用移動坐標法將問題轉化為「契合」問題進行求解，最終歸結為一組無窮代數方程組並用截斷有限項的方法進行計算。
  19. This paper focuses on the main limitation - unable to share the data surely and effectively - of the existing systems. on the basis of the computer making train diagram system ver2. 0, brings fonvard the new style system of making diagram with computer based on the b / s architecture. in the paper, the author makes studies on the data permission security and transport security problems of the train diagram system that is based on computer networks and distributed system

    0 》的基礎上，針對目前國內計算機編圖系統的主要不足? ?無法安全有效的實現數據信息共享，提出基於b s體系架構的新型編圖系統整體方案，並對處于網路互聯狀態下、分散式處理系統的列車運行圖數據訪問權限以及數據傳輸安全問題進行深入的研究。
  20. At last, by using the factorization properties of cyclotomic polynmials on finite fields and the construction characteristic of cyclic codes, we present the relation of the period distribution of cyclic codes and the period distribution of their dual codes, establish the explicit formula for the number of the codewords without inner - period of the cyclic codes and their dual codes, find the method for computing the dimension and the period distribution of narrow - sense primitive bch codes, and study the inverse question of period distribution of cyclic codes

    最後，利用有限域上分圓多項式的分解特性和循環碼的構造特點，揭示了循環碼的周期分佈與其對偶碼周期分佈之間的內在聯系，確定了一般循環碼及其對偶碼內無內周期碼字的精確計數公式，決定了狹義本原bch碼的維數與周期分佈，討論了循環碼周期分佈的反問題。
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