?Lagrangian

Lagrangian發(fā)音

英：　　美：

Lagrangian中文意思翻譯

n. 拉格朗日算符

Lagrangian常見(jiàn)例句

1 、Started the derivation of the momentum equations by applying the Reynolds Transport Theorem to the Lagrangian expression for conservation of mass.───向質(zhì)量守恒方程的拉各朗日運算式中引入雷諾運輸定理，來(lái)推導動(dòng)量方程。

2 、Gas-phase field and discrete particle field are treated respectively by a Eulerian method and a Lagrangian one.───分別用歐拉方法處理氣相場(chǎng)和用拉格朗日方法處理離散顆粒場(chǎng)。

3 、arbitrary - lagrangian - eulerian method───Arbitrary-Largrangian-Eulerian方法

4 、ALE (Arbitrary Lagrangian Eulerian)───任意拉格朗日-歐拉（ALE）

5 、Application of fast lagrangian analysis of continua to researching on safe rock covers of Xiamen subsea tunnel───三維快速拉格朗日法在安全頂板厚度研究中的應用

6 、Comparison of CRISTA-1 observations with transport studies based on the Chemical Lagrangian Model of the Stratosphere───CRISTA-1的觀(guān)測與基于平流層化學(xué)拉格朗日模式輸送研究的比較

7 、A solar-sail driven spacecraft, parked at the Lagrangian L1 point between Earth and the Sun, might be the perfect mission, and answer, to this crucial dilemma.───一個(gè)由太陽(yáng)帆驅動(dòng)、停泊在地球與太陽(yáng)之間的第一拉格朗日點(diǎn)的飛船，作為對此種窘境的解決方案，會(huì )非常適合此項任務(wù)。

8 、LAGRANGIAN BEM FOR AN UNSTEADY SLOSHING MODEL SUITABLE TO ARBITRARY TANKS───任意形狀容器裝液不定?；蝿?dòng)的邊界元模型

9 、modified Lagrangian function───修正Lagrangian函數

10 、Modified Lagrangian algorithm───修正Lagrangian算法

11 、Lagrangian model for the motion of solid particles and air bubbles in the flow field of an arbitrary incompressible fluid is developed.───在試驗和流場(chǎng)數值模擬的基礎上,對水力旋流器內部固體顆粒的運動(dòng)行為進(jìn)行了具體的研究。

12 、In analysis of fluid flow processes, the Lagrangian approach results in highly distorted meshes since the mesh convects with the material.───好像不太妥，如果convect譯成對流的話(huà)，那么下句的意思感覺(jué)不大對勁。

13 、A Numerical Method for Solving Radiation Transport Equation on Lagrangian Mesh───任意四邊形網(wǎng)格上解輻射輸運方程的一種數值方法

14 、Fast Lagrangian Analysis of Continua(FLAC)───FLAC

15 、The MPS method, adopting N-S equations as governing equations, is a new numerical approaches in the hydrodynamic calculation, which is a complete particle method based on Lagrangian concept.───光滑粒子半隱式(MPS)方法是一種新發(fā)展起來(lái)的水動(dòng)力學(xué)數值方法,它以N-S方程為控制方程,在數值求解中以拉格朗日觀(guān)點(diǎn)的粒子方法為基礎。

16 、A DIRECT METHOD FOR THE CONSTRUCTION OF A LAGRANGIAN───一種構造Lagrange函數的直接方法

17 、A Large-Eddy Simulation and Lagrangian Stochastic Study of Heavy Particle Dispersion in the Convective Boundary Layer───對流邊界層中重粒子彌散的大渦旋模擬的拉格郎日隨機研究

18 、COUNTER LAGRANGIAN CALCULATION OF EINSTEIN GRAVITY COUPLING SCALAR FIELD───含耦合標量場(chǎng)的量子引力發(fā)散抵消項的計算

19 、A corresponding solution was thus given methodologically to the model combing Lagrangian relaxation, algorithm of ordinal introduction of constraints with heuristic algorithms.───同時(shí)給出了相應的求解方法，即將拉格朗日松弛、序貫引入約束法和啟發(fā)式算法結合使用的方法。

20 、STUDY ON LAGRANGIAN ANALYSIS METHOD FOR MECHANICAL BEHAVIOR OF ROCK MASS AND ITS ENGINEERING APPLICATION───巖體力學(xué)行為拉格朗日分析方法研究與工程應用

21 、To demostrate such possiblity, we show that there are Lagrangian corresponding to open and closed string.───為了展示這樣的可能性，我們秀出兩個(gè)拉格朗日對應到開(kāi)弦與閉弦。

22 、A New Formulation of Lagrange's Equations with the Second-order Augmented Lagrangian Function───二階擴張性拉氏函數描述的拉格朗日方程的新公式

23 、Application of a Gaussian Segmented Plume Model and a Lagrangian Puff Model during the Nuclear Emergency───分段煙羽模型和煙團模型在核事故應急中的應用比較

24 、As a result,a new Legendre spectral element scheme is developed.The local lagrangian basis are used at the boundaries of the element,and the modified Legendre polynomials are adopted interiorly.───在此基礎上,給出了一種勒讓德譜元計算格式:在元素端點(diǎn)采用局部拉格朗日基函數,在元素內部采用調整后的局部勒讓德多項式。

25 、Fu, X. D., and Wang, G. Q. (2005). “Examination of existing models for fluid lagrangian integral timescale seen by suspended sediment.” Proceedings of the XXXI IAHR Congress, Seoul, South Korea.───傅旭東,王光謙.一個(gè)基于動(dòng)理學(xué)理論的懸沙**系數模型.第6屆全國泥沙基本理論研究學(xué)術(shù)討論會(huì ),鄭州,2005.

26 、lagrangian finite-difference───Lagrangian有限差分法

27 、arbitrary Lagrangian Eulerian and body-fitted coordinate───任意拉格朗日歐拉坐標法

28 、The quantum symmetries in field theories for a gauge-invariant system with a higher-order Lagrangian───場(chǎng)論中高階微商規范系統的量子對稱(chēng)性質(zhì)

29 、Sea-salt aerosols over the north-east Atlantic: Model simulations of the ACE-2 Second Lagrangian experiment───東北大西洋上的海鹽氣溶膠:ACE-2第二次半拉格朗日試驗的模式模擬

30 、Augmented lagrangian relaxation───增廣拉格朗日松弛化

31 、In linear theory there is no difference between Eulerian and Lagrangian descriptions.───在線(xiàn)性理論中，歐勒描述和拉格朗日描述之間是沒(méi)什么不同的。

32 、Combined the Lagrange multiplier and penalty function methods, the augmented Lagrangian method is used to treat the contact constraint and solved the non-linear and non-smooth problems of the mechanical response perfectly.───在求解方法上,綜合了Lagrange乘子法與罰方法的優(yōu)點(diǎn),采用增廣的Lagrangian方法處理接觸界面約束,很好地解決了接觸問(wèn)題中的高度非線(xiàn)性和響應不平滑性。

33 、Lagrangian Multiplier Method with NCP Function───帶NCP函數乘子法(英文)

34 、A Lagrangian Decomposition and Domain Cut Algorithm for Nonseparable Convex Knapsack Problems───不可分離凸背包問(wèn)題的拉格朗日分解和區域分割方法

35 、A Sequential Lagrangian Relaxation Approach To Job Shop Scheduling───Job Shop調度的序列拉格朗日松馳法

36 、Then some of the typical algorithms were introduced, such as algorithms based on problem decomposition, Lagrangian relaxation/decomposition and intelligent optimization algorithms.───分析了大規模生產(chǎn)調度問(wèn)題規模增長(cháng)的因素，重點(diǎn)介紹了基于問(wèn)題分解的各類(lèi)方法、拉格朗日松弛／分解法及智能優(yōu)化算法。

37 、However, it doesn't deal with infinite domain problems well, which are frequently encountered in geotechnical engineering.Truncated boundaries must be used to slove such problems in Lagrangian method.───但它對巖土工程中大量存在著(zhù)的無(wú)限和半無(wú)限域問(wèn)題并沒(méi)有進(jìn)行有針對性的處理，仍然不得不采用截斷邊界的辦法。

38 、semi Lagrangian semi implicit scheme───半拉格朗日半隱式格式

39 、Arbitrary Lagrangian Eulerian───任意拉格朗日-歐拉方法

40 、However, the relation between unit commitment risk and unit forced outage capacity is discrete, which Leads to a difficult combination with the Lagrangian relaxation method of unit commitment.───但機組投運風(fēng)險水平與機組強迫停運容量呈離散型的分布關(guān)系，因而難以與拉格朗日松弛法的機組組合算法有機結合。

41 、Two identical NASA spacecraft are preparing to enter areas in space known as the Lagrangian points where remains of this mystery protoplanet may be hiding.───NASA將發(fā)射2個(gè)完全相同的航天器到天空中的拉格朗日點(diǎn)，去尋找那個(gè)神秘行星的遺跡（拉格朗日點(diǎn)是那個(gè)神秘行星殘余最可能的藏身處）。

42 、Solve for the equations of motion using both the Newtonian and Lagrangian formulations.───使用基本的運動(dòng)方程來(lái)計算航行器的基本飛行狀態(tài)。

43 、(5) Calculus of Variations: Lagrangian multipliers, Rayleigh-Ritz method.───(5)變分法： 拉格朗日乘，瑞利-里茲方法。

44 、Arbitrary Lagrangian Eulerian (ALE)───ALE

45 、For the identical parallel-machine scheduling problem,the average devia- tion of the ILS with SS to the lower bound obtained by Lagrangian Relaxation is 0.99%,but 1.06% for the ILS without SS.───實(shí)驗結果表明:對于同構并行機問(wèn)題,引入SS的ILS算法的計算結果與下界的平均偏差為0.99%,而沒(méi)有引入SS的ILS算法的為1.06%;

46 、Velocity fluctuations in the Lagrangian frame have been observed by using a double-theodolite system to track balanced balloons released at the height of 160m of the 325m tower which is located on the north suburb of Beijing.───在北京北郊氣象鐵塔(325m高)的160 m高度上釋放平衡氣球,用雙經(jīng)緯儀**的方法得到拉格朗日表示法的風(fēng)速脈動(dòng)資料.

47 、FLAC3D (Fast Lagrangian Analysis of Continua in Three-dimensions)───FLAC3D

48 、The shrinkage of borehole is calculated by Fast Lagrangian Analysis of Continua method (FLAC), which is applied to analyze borehole stability of plaster stone and salt stone in well drilling.───將拉格朗日元法應用于石油鉆井所遇的鹽膏地層，利用FLAC程序分析了鹽膏地層的縮徑變形。

49 、ISO(3. 1/N)SUPERGRAVITY LAGRANGIAN WITH NOETHER COUPLE───含Noether耦合的ISO(3.1/N)超引力拉氏量

50 、LAGRANGIAN RELAXATION BASED MULTI-REGION TRANSMISSION CONGESTION MANAGEMENT───多區域輸電阻塞管理的拉格朗日松弛分解算法

51 、A flutter differential equation for two coupled asymmetrical control surfaces was derived using Lagrangian equation under the supposition of quasi-steady aerodynamic forces.───以一對耦合控制面結構的氣動(dòng)彈性模型為研究對象,在準定常氣動(dòng)力的假設下,利用拉格朗日方程建立結構的顫振運動(dòng)微分方程。

52 、In the same way, once into the atomic world the concept of force is not so useful anymore, now it is energy (especially in the forms of Hamiltonian and Lagrangian) that plays a dominant role.───但是當我們進(jìn)入原子尺度時(shí)，力的概念便并不那么適用了，而能量（特別是拉格朗日形式和哈密頓形式）起到了更重要的形式。

53 、Through analysis and compare, the measure fitting for HUXI bank was put forward.(3) Introduced Fast Lagrangian Analysis of Continua .───(2)綜述堤防加固技術(shù)及方法，并對各種防滲，滑坡等加固措施進(jìn)行分析比較，提出了適合于湖西大堤的加固措施。

54 、By using Euler-Lagrange equation, Dirac equation for nucleon, Klein-Gordon equation for mesons and electric-magnetic equation for photons are obtained from the general RMF lagrangian which describes nucleon, mesons and photons.───從包含核子、介子以及光子的拉格朗日量出發(fā),運用Euler-Lagrange方程給出了描述核子運動(dòng)的Dirac方程、介子的Klein-Gordon方程、光子的電磁場(chǎng)方程,以及這些方程對球型核的描述形式。

55 、The meshless method based on the kernel approximation is a pure Lagrangian computational method,in which the typical one is the Smoothed Particle Hydrodynamics (SPH) method.───基于核近似的無(wú)網(wǎng)格方法是一種純拉氏計算方法,其典型代表為光滑粒子流體動(dòng)力學(xué)方法(SPH)。

56 、With the purpose of minimizing wet perimeter, limited by the average flow, this paper deduces the nonliner programming models of the cross-section of lined canal by method of lagrangian multipliers.───以濕周最小為目標函數，均勻流公式為約束條件，應用拉格朗日乘子法求解，推導配水襯砌渠道橫斷面的非線(xiàn)性規劃模型。

57 、UV decomposition theory is an efficient method dealing with the second order expansion of nonsmooth functions. It is obtained via the U Lagrangian that a function f has second order expansions along smooth trajectories.───UV 分解理論是處理非光滑函數的二階展開(kāi)的有效方法 ,它借助于U 拉格朗日函數 ,得到函數在一個(gè)光滑軌道上的二階展開(kāi)式 .

58 、Lagrangian multipliers method───Lagrangian乘子法

59 、The first three Lagrangian points are stable only in the plane perpendicular to the line between the two bodies.───前三個(gè)拉格朗日點(diǎn)。

60 、Implementation of the Semi Lagrangian Method in the Primitive equations Model───半拉格朗日方法在全球原始方程模式中的實(shí)現

61 、Lagrangian Methods for Climatological Analysis of Regional Atmospheric Transport.───區域大氣傳輸氣候分析的拉格朗日方法。

62 、Convex analysis, Lagrangian relaxation, nondifferentiable optimization, and applications in integer programming.───凸分析、拉格朗日松弛法、不可微分函數最適化以及在整數規劃上的應用。

63 、This text introduce the principle of the Lagrangian element method and the FLAC applied in analyze the stability of the slope.───介紹了拉格朗日元法的原理,以及應用軟件FLAC在邊坡穩定性分析中的應用。

64 、augmented Lagrangian regularization───增廣拉格朗日正則化

65 、Research progress in arbitrary Lagrangian Eulerian method───任意拉格朗日-歐拉描述法研究進(jìn)展

66 、It has proven to be a great challenge to extract information on the properties of hadrons from the rather simple Lagrangian of QCD.───如何從簡(jiǎn)單的量子色動(dòng)力學(xué)的拉氏量出發(fā)抽取有關(guān)強子態(tài)的信息已被證明是一個(gè)巨大的挑戰。

67 、Lagrangian method-based FLAC3D program is especially suitable for solving the nonlinear large deformation problem in rock mechanics engineering,which is very favorable for the design research work on mining engineering.───基于拉格朗日算法的FLAC3D程序特別適合于求解巖土力學(xué)工程中非線(xiàn)性的大變形問(wèn)題,這點(diǎn)是非常適合采礦工程的設計研究工作的。

68 、three-order Lagrangian equations───三階Lagrange方程

69 、Generalized augmented Lagrangian───廣義增廣拉格朗日函數

70 、An Exact Augmented Lagrangian Function for Nonlinear Programming Problems with Inequality Constraints───不等式約束優(yōu)化問(wèn)題的一個(gè)精確增廣拉格朗日函數

71 、The constitutive equations and FEM formulations of rock masses of large elastoplastic deformation are established by using updated Lagrangian method.───介紹了采用更新拉格朗日法的巖土體彈塑性大變形本構方程和有限元公式的推導過(guò)程。

72 、augmented Lagrangian function───增廣拉格朗日函數

73 、By using updated Lagrangian elastoplastic finite element method, the temperature fields and stress-strain fields during the welding process are investigated.───基于更新拉格朗日彈塑性有限元法分析了焊接過(guò)程的溫度場(chǎng)和應力應變場(chǎng);

74 、Unit Decommitment Based on Improved Lagrangian Multiplier Modification Method───基于改進(jìn)拉格朗日乘子修正方法的逆序排序機組組合

75 、On the Synoptic-Scale Lagrangian Autocorrelation Function───天氣尺度的拉格朗日自相關(guān)函數

76 、Periodic solution of Lagrangian system is studied with locally coercive potential or sublinear nonlinearity by the least action principle, and an existence theorem is obtained.───利用極小化作用原理研究了具有局部強制性位勢或具有次線(xiàn)性非線(xiàn)性項的Lagrange系統的周期解,并得到了一個(gè)存在性定理.

77 、Introduced Lagrangian and Eulerian frameworks giving pros and cons for each.───介紹拉各朗日與歐拉架構，并介紹其優(yōu)缺點(diǎn)。

78 、Fuzzy subgradient algorithm for solving Lagrangian relaxation dual problem───利用模糊次梯度算法求解拉格朗日松弛對偶問(wèn)題

79 、arbitrary Lagrangian Eulerian(ALE) formulation───任意拉格朗日-歐拉法

80 、Lagrangian integral time scale───Lagrangian積分時(shí)間尺度

罰函數法和拉格朗日乘子法的區別

SUMT外點(diǎn)法（懲罰函數法）和內點(diǎn)法（障礙函數法），它們的共同優(yōu)點(diǎn)是:①方法簡(jiǎn)單,程序易于編制;②對目標函數和約束函數要求不高，適用范圍較廣。因此受到工程技術(shù)人員的歡迎。但也存在一些缺點(diǎn):①為了求解一-個(gè)約束優(yōu)化問(wèn)題,需要求解一系列的無(wú)約束優(yōu)化問(wèn)題,計算量大，而且參數Mk和rp的選取對方法的收斂速度影響比較大;②在迭代過(guò)程中,外點(diǎn)法中的參數Mk不斷增大,內點(diǎn)法中的參數re不斷減小，使得求解無(wú)約束極小問(wèn)題變得十分困難;③用外點(diǎn)法求得的近似解x(k)往往不是可行解,只能近似地滿(mǎn)足約束條件,在某些實(shí)際問(wèn)題中,這樣的結果是不能用的;而內點(diǎn)法中,要求初始點(diǎn)x(0)位于可行域的內部,有時(shí)這是困難的,而且內點(diǎn)法不能求解包含有等式約束的優(yōu)化問(wèn)題，這也是一個(gè)很大的限制。為了克服這最后一個(gè)缺點(diǎn),人們往往將內點(diǎn)法和外點(diǎn)法結合使用，即混合函數法。

前面介紹的兩種懲罰函數方法, 最主要的缺點(diǎn)是當懲罰因子 ρ → +∞ (或r → 0 ) 時(shí), 對應的罰函數的海森陣越來(lái)越病態(tài), 從而導致無(wú)約束優(yōu)化子問(wèn)題的求解 非常困難, 甚至難以進(jìn)行下去. 本節介紹的方法則可克服這個(gè)缺點(diǎn).

1969 年, Powell 和 Hestenes 分別獨立地將拉格朗日函數與懲罰函數有機地結合 起來(lái), 針對只含有等式約束的優(yōu)化問(wèn)題提出了增廣拉格朗日函數法, 又稱(chēng)乘子法。

增廣拉格朗日函數法可以不需要懲罰因子 σ 趨于無(wú)窮大, 只 需大于某一閾值, 即可把求解問(wèn)題 (4-27) 轉化為求解無(wú)約束優(yōu)化問(wèn)題 。

增廣拉格朗日(augmented lagrangian)具有能夠達到任意精度的性能，且魯棒性極強，是最適合求解非線(xiàn)性約束問(wèn)題的方法之一，它的缺點(diǎn)是在平衡迭代以外引入了額外的迭代，同時(shí)也增加了程序實(shí)現難度。

罰函數法和拉格朗日乘子法的區別

懲罰函數法在M越來(lái)越大的情況下，函數F趨近于病態(tài)，乘子法克服這個(gè)缺點(diǎn)根據拉格朗日分解加了一個(gè)uih（x）M變?yōu)榱薱/2,解決了這個(gè)問(wèn)題