方程的不變量 的英文怎麼說

中文拼音 [fāngchéngdebùbiànliáng]
方程的不變量 英文
invariant of an equation
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  1. A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )

    採用一維2 . 5階湍封閉混合層模式，根據參數化方法對波浪破碎導致的能量耗散率進行了估計，通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響，計算了不同風應力強迫下的混合層流場結構和湍能量收支（下述給出的結果是取風速為20m s得到的） 。
  2. The crystallization and melting behavior of mellocene - catalized branched and linear polyethylenes of low molecular weight was studied. it was found that the crystalline lattice of branched polyethylene is larger than that of linear polyethylene because of the existence of branched chains. the melting behavior of branched polyethylene is similar to that of linear polyethylene since the branched chains can not enter the lattice. however, the crystalline behavior of low molecular weight branched polyethylene is the same as that of high molecular weight linear polyethylene, but different with that of low molecular weigh linear polyethylene. kinetics theory analysis evidenced that the transition temperature of growth regime of the branched polyethylene is about 20 lower than that of linear polyethylene with the same molecular weight. it may be attributed to the existence of short branched chains

    研究了金屬茂催化的低分子量支化聚乙烯和線性聚乙烯的結晶及熔融行為，發現支化聚乙烯的結構與線性聚乙烯相同為正交結構，但晶格略有膨脹.支鏈的存在對熔融行為影響不大，兩種聚乙烯的熔點均隨結晶溫度的升高而非線性增加，表現出低分子量樣品的共同特徵.但支鏈的存在對結晶行為卻有很大的影響，主要是由於支鏈的存在降低了晶體的結晶速率從而影響結晶過程，使得低分子量的支化聚乙烯的結晶行為與高分子量線性聚乙烯的結晶行為相似而與低分子量的線性聚乙烯不同.動力學分析表明，低分子量的支化聚乙烯的結晶生長方式的轉變溫度比同等分子量的線性聚乙烯降低了約20
  3. In one direction, people use a theoretical model that implies econometric equations, which may be grouped under the heading natrex, natural real exchange rate. the other is called beer, behavioral equilibrium real exchange rate, which attempts to explain the actual behavior of the real exchange rate in terms of a set of relevant explanatory variables, the so - called " fundamentals "

    目前廣為使用的均衡實際匯率研究方法大體上可分為兩類，一是應用暗含計量方程的理論模型，另一種方法並不首先給出具體方程，完全採用計量方法尋找匯率與基本經濟變量之間的協整方程，以此建立均衡匯率模型。
  4. On the basis of this, we selected rms as feedback variable and constructed the controller g : add this controller to the right of ion radial self - edlctric force equation like equation ( 1 ). we simulated the motion of ion beam by using muti - paticle code ( partice - in - cell ( pic ) code ). the results demonstrated that the beam halo of five different initial distribution is eliminated well under the same controller. the halo intensity of k - v distribution, water - bag distribution and parabolic distribution and be reduced to zero. in the case of 3 - sigma distribution and full gauss distribution, the result is agree with minimum limitation ( 10 " ) of halo intensity of factual high intensity accelerator

    在此基礎上，選擇a為控制變量，構造延遲反饋控制器g ： g （ s glrrms （ s ）一rms （ s ） （ 2 ）同（ l ）式一致，將此控制器函數加在粒子徑向所受束自生場力方程的右邊。利用多粒子數值模擬程序（ pic ）進行了控制試驗。模擬結果表明，用同一個控制器和同一個控制參數即可實現五種不同初始分佈情況下的束運一混飩的有效控制。
  5. In the models, the time dependent parabolic equations, deduced from the mild slope equations with currents or not, are used as the governing equations. based on the general conditions for open and fixed natural boundaries with an arbitrary reflection coefficient and phase shift, the boundary conditions for the present models are treated. the alternative direction implicit method is used to solve the governing equations and the numerical schemes are unconditional stable

    在建立模型時，將原始的橢圓型緩坡方程的近似型式? ?依賴時間變化的拋物型方程，作為控制方程；從將開邊界條件、不同反射特性的固壁邊界條件相統一的表達式出發，對邊界條件進行處理；用adi法數值求解控制方程，格式無條件穩定；節省了計算機內存和計算量。
  6. Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions. the ray path in plasma was calculated by the numerical solution of the vector equation of light ray, when the plasma density was closing to the critical electron density of the laser frequency. through the simulations, the factors that influence the measurement were found out under different density distributions and shapes of plasma

    在此基礎上，採用數值模擬的方法，計算了在幾種典型的等離子體密度分佈下，激光波面的變化和產生的干涉圖樣；並用光線矢量微分方程的數值解法計算了當等離子體密度接近光頻臨界電子密度時，光線在等離子體中的傳播路徑，從中掌握了在不同的等離子體密度和形狀下，進行干涉測量所應估計到的因素。
  7. Abstract : a continuity wave model is put forward for the dispersion processof liquid - liquid two - phase system, by coupling mass and momentum conservation equations of two - fluid model. the conditions that result in a dispersion choke and the weak instability of a dispersion process are derived from the model. the phenomena of catastrophic inversion and transitional inversion are explained. the effect of drop size distribution on the maximum volume concentration of a emulsion is predicted using the model. according to the theory herein, emulsion inversion is the regime transition of liquid - liquid system due to the instablity of a dispersion process. the effect of drop size distribution on the maximum volume concentration of a liquid - liquid emulsion only occurs in a certain range of weber numbers

    文摘:以雙流體模型為基礎，通過質量守恆方程和動量守恆方程的耦合，提出了液-液兩相系中彌散傳質的連續波模型.由該模型得到彌散傳質過程阻塞和彌散傳質過程弱不穩定性產生的條件，計算了液滴尺寸及其分佈對乳化液極大堆砌分數的影響，解釋了劇變型乳化逆變和漸變型乳化逆變現象.研究結果表明，乳化逆變是由於彌散傳質過程的不穩定性而引起的懸浮體型態的改變，隨液滴尺寸多分散性的增大，極大堆砌分數增大；隨液滴平均尺寸的增大，多分散性對極大堆砌分數的影響減弱；當韋伯數足夠大時，液滴尺寸及其分佈對乳化液極大堆砌分數無影響
  8. Oscillation of unstable type first order difference equation with continuous variable

    連續變量不穩定型一階差分方程的振動性
  9. Under the influence of positive interest difference between foreign currency with rmb and revaluing of rmb anticipatively, the domestic financing institutions increases the foreign currency debt and reduce the rmb loan, and the import and export scale increases significantly at the same time. these insult from significant increase of short - term foreign loan remains and discharge. and the government the system and method of management in foreign loan is not perfect, causing great latent risk of the foreign loan in our country

    隨著我國資本市場開放時間的臨近，境內外資金融機構在華業務迅速擴張，受到本外幣正利差和人民幣升值預期的影響，境內機構紛紛增加外幣負債，減少人民幣貸款，同時進出口規模大幅增長，導致短期外債余額和流量大幅上升，且政府在外債管理過程中管理體制和方法的不完善，導致我國外債存在較大的潛在風險，這些變化也導致了外債規模管理難度的增加。
  10. This paper realized the aumotic detection of assembling angle position of intravenous needles by image technology. during the study, this paper designed light with a piece of white paper and halogen lamp to take the images of intravenous needles ; analyzed in detail hu moment invariants of digital image, amended i7 and chose i1 ~ i5 and amended i7 as eigenvector groups ; put forward a method of angle recognition based hu moment invariants ; the methods above were employed by vc + +, and a prototype system of software is compiled

    在輸液針的角度識別的研究過程中，用鹵素燈和白紙構建了一個漫反射體作為輸液針圖像獲取理想的光源；分析了矩不變量的不變性，修正了矩不變量i _ 7 ，選用了i _ 1 i _ 5和修正後的i _ 7來提取輸液針圖像的特徵；針對輸液針圖像的特點，提出了一種基於矩不變量的角度識別方法；在開發平臺vc + + 6 . 0上編寫了一個輸液針角度識別的軟體原型系統，實現了其演算法。
  11. There are many kinds of ways to solve the electrostatic field of two - dimensional laplace ’ s equation or the poisson ' s equation, like the separation of variables, green ’ s function or alternative means. but if their boundary shapes are quite complex, it is extremely difficult to use these usual methods, and, in general, it is impossible to work out even there is such peculiar instance as analytic solution, or obtains the approximate solution

    對二維拉普拉斯方程或泊松方程的平面場的解法有多種，如分離變量法、格林函數法或者其他方法，但如果它們的邊界形狀比較復雜，用這些通常的方法求解會非常困難，即使對于存在有解析解的特殊情況，一般說來也不可能求出，而且求得的只能是近似解。
  12. As long as the root of the characteristic equation is within the unit circle of z - plane and the corresponding pid parameter is got, the closed loop control system is sure to be stable. although the root of the characteristic equation can vary within the unit circle of z - plane, different value may affect the control property differently. therefore, it is better to optimize the root, here the optimizing method is carried out by genetic algorithm

    本文所採用的這種確定pid參數的方法，雖然可以使特徵方程的根在z平面的單位圓內任意取值，但各種取值情況對變風量空調系統的控製品質的影響卻不同，因此，要對各種特徵方程的根的取值情況進行尋優，本文採用遺傳演算法對特徵方程的根進行尋優，從而使控制器的參數得以優化。
  13. It seems that the strong interest in the differential equations with piecewise constant argument is motivated by the fact that they describe hybrid dynamical systems which is a combination of the properties of both differential and difference equations. there have been many pa - pers ( such as [ 7 ] ~ [ 15 ] ) concerning these equations

    由於具逐段常變量的微分方程是連續和離散動力系統的混合形式，它既具有微分方程的性質也具有差分方程的性質，從而引起廣泛的興趣，研究此類方程的文獻並不少見，如[ 7 ] [ 15 ] 。
  14. Measurement and characterization of surface texture is an important aspect of precision metrology. historically this has involved partitioning a profile into different wavelength regimes referred to as roughness, waviness and form followed by numerical quantization. parameters computed are then inspected for tolerance compliance to ensure a part performs its intended function. this approach is satisfactory when the specification has been carefully determined and the process is stable. however, when the manufacturing process is under development or when instability or modifications to the process invalidate specifications, there is a need to study surface finish parameters in relation to functional performance or process measures. in this context, the problem of surface texture classification and recognition are discussed. advanced techniques developed for this purpose along with applications are presented. also, the techniques discussed here will be useful across large bandwidth, from the characterization of nano scale to traditional micro scale surfaces

    表面結構的測量與特徵描述是精密計量技術的一個重要方面，傳統上包括將輪廓情況根據不同的波長范圍劃分為粗糙度、波紋度和形狀及后續的數字量化.按算得的參數檢查它是否為公差允許，以保證零件執行其指定的功能.當技術特性已經經過仔細確定，並且其過程穩定時，該方法是令人滿意的;但是，當製造過程正在進行中或過程的不穩定、過程變化使技術特性失效時，就需要研究和功能表現及過程評定相關的表面參數.討論了表面結構的分類與識別問題.同時闡述了為此目的而開發的先進技術及其應用.所研究的技術對從納米尺度到傳統的微米尺度的較大帶寬范圍內的表面特徵描述都是有效的
  15. The thesis expounds in a novel and all - round way eight characteristics that quality military personnel of new type need to accomplish the requirements of the new military transformation, that ' s, comprehensiveness, compositeness, all - roundness, innovativeness, developmentalness, intelligence, openness, and applicability. under this model structure, to overcome the deficiencies in current personnel training concept, methods and system, the thesis originates a new personnel training concept characterized by people - oriented education, contents advancing with times, diversified methods, overall quality, and classified administration ; a new personnel training system characterized by comprehensive and optimized disciplinary specialties, overlapping courses, methods of teaching students in accordance with their aptitude, scientific and rational assessment, and quality management integrating the objective with the course ; and a new personnel training measure strengthe

    按照這一模型結構，針對當前人才培養的觀念、方法，機制等方面的不足，創造性地提出了樹立以人為本的教育觀，與時俱進的內容觀，形式多元的方法觀，全面化的質量觀，層次化的管理觀的人才培養新理念；構建綜合優化的學科專業體系、交叉滲新軍事變革中軍隊院校人才培養機制的研究透的課程體系、因材施教的方法體系、科學合理的評價體系，目標與過程相統一的質量管理體系的人才培養新體系;加強人文素質培養、加強軍事體能訓練、注重非智力因素培養、內化信息素、強化實踐性教學的人才培養新措施，構建起了較為完善的新軍事變革條件下軍隊院校人才培養的新機制。
  16. Cers allow code to treat errors in a very deterministic manner, maintaining internal invariants that are important to the application and allowing it to continue running in the face of transient errors such as out - of - memory exceptions

    Cer允許代碼以非常明確的方式處理錯誤，維護對應用程序很重要的內部不變量並允許它在面對諸如內存不足異常之類的瞬態錯誤時繼續運行。
  17. We summarize some known results on hyers - ulam stability of functional equations in single variable, simplify conditions in three senses for the generalized gamma functional equation. furthermore, we discuss hyers - ulam stability of a nonlinear iterative equation and prove existence and uniqueness of solutions near its approximate solutions

    本章在綜述單變量的函數方程hyers一ulam穩定性的有關結果的基礎上，簡化了有關廣義r一函數方程在三種意義下的hyers一ulam穩定性的條件並給出了一些不同於經典r一函數方程的例子
  18. At the same time, according to the excellent capability of ip curves, we study fitting and description of objects, determination of invariants of objects, symmetry detection and recognition of objects based on ip curves. in all, the main contributions in the dissertation are as follows : ( 1 ) a method of determining automatically the scale of the multiscale edge detection is proposed based on the variant distance of the variogram function, and a method of segmenting texture images is also presented. the variograin values are taken as stochastic and structural properties of texture images and variant distance is taken as the size of image window

    同時，基於隱含多項式曲線良好的物體描述與識別能力，對物體邊界輪廓的擬合、描述、不變量特徵的提取、識別以及物體對稱性檢測作了系統的研究，主要成果及創新之處有： （ 1 ）基於變差函數的變程，提出了圖像多尺度邊緣檢測中尺度大小的自動確定方法；將變差函數的變差值作為紋理的統計和結構特徵，依據變程確定窗口大小，給出一種新的紋理圖像的分割方法。
  19. Linear least square was adopted as model correction algorithm according to the characteristics of the chemical process faults, computation speed could therefore be increased

    該方法不需要設計觀測器來估算過程的不可測變量，還可以將故障檢測和診斷任務同時進行。
  20. By elementary rank transformations of matrix, a method has been obtained to solve linear diophantine equation with some variables. the method overcomes the deficiency of traditional method

    摘要利用矩陣的初等列變換，給出了求解多元線性不定方程的一種方法，該方法改進了傳統方法計算量大、步驟多的缺點。
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