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Generalized Variational Iteration Solution of Soliton for Disturbed KdV Equation 被引量:24
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作者 莫嘉琪 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第3期440-442,共3页
扰乱的 KdV 方程的一个类的相应解决方案用分析方法被考虑。从概括变化重复理论,为相应方程解决 soliton 的问题翻译成变化重复的问题。然后为方程的 soliton 的近似答案被获得。
关键词 KDV方程 广义变分 迭代解法 扰动 孤子 变分问题 问题转化 近似解
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Solution of Travelling Wave for Nonlinear Disturbed Long-Wave System 被引量:33
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作者 MO Jia-Qi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第3期387-390,共4页
非线性的扰乱的长波浪的系统的一个类的旅行波浪解决方案的近似表达式用概括变化重复方法被构造。
关键词 非线性扰动 行波解 系统 近似表达式 迭代方法 广义变分
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Approximate Solution of Homotopic Mapping to Solitary Wave for Generalized Nonlinear KdV System 被引量:66
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作者 莫嘉琪 《Chinese Physics Letters》 SCIE CAS CSCD 2009年第1期13-16,共4页
We study a generalized nonlinear KdV system is studied by using the homotopic mapping method. Firstly, a homotopic mapping transform is constructed; secondly, the suitable initial approximation is selected; then the h... We study a generalized nonlinear KdV system is studied by using the homotopic mapping method. Firstly, a homotopic mapping transform is constructed; secondly, the suitable initial approximation is selected; then the homotopic mapping is used. The accuracy of the approximate solution for the solitary wave is obtained. From the obtained approximate solution, the homotopic mapping method exhibits a good accuracy. 展开更多
关键词 field emission molybdenum dioxide enhancement factor
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A Variational Iteration Solving Method for a Class of Generalized Boussinesq Equations 被引量:57
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作者 莫嘉琪 《Chinese Physics Letters》 SCIE CAS CSCD 2009年第6期7-9,共3页
We study a generalized nonlinear Boussinesq equation by introducing a proper functional and constructing the variational iteration sequence with suitable initial approximation. The approximate solution is obtained for... We study a generalized nonlinear Boussinesq equation by introducing a proper functional and constructing the variational iteration sequence with suitable initial approximation. The approximate solution is obtained for the solitary wave of the Boussinesq equation with the variational iteration method. 展开更多
关键词 gamma-ray bursts GAMMA-RAYS RELATIVITY
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Variational iteration method for solving the mechanism of the Equatorial Eastern Pacific El Nino-Southern Oscillation 被引量:35
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作者 莫嘉祺 王辉 +1 位作者 林万涛 林一骅 《Chinese Physics B》 SCIE EI CAS CSCD 2006年第4期671-675,共5页
A class of coupled system for the E1 Nifio-Southern Oscillation (ENSO) mechanism is studied. Using the method of variational iteration for perturbation theory, the asymptotic expansions of the solution for ENSO mode... A class of coupled system for the E1 Nifio-Southern Oscillation (ENSO) mechanism is studied. Using the method of variational iteration for perturbation theory, the asymptotic expansions of the solution for ENSO model are obtained and the asymptotic behaviour of solution for corresponding problem is considered. 展开更多
关键词 nonlinear method of variational iteration perturbation theory El Nino- Southern Oscillation model
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Asymptotic solution for a class of sea-air oscillator model for El Nio-southern oscillation 被引量:39
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作者 莫嘉琪 林万涛 《Chinese Physics B》 SCIE EI CAS CSCD 2008年第2期370-372,共3页
The El Nifio-Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific Oceanatmosphere interactions. In this paper, an asymptotic method of solving the nonlinear equation for the ENSO... The El Nifio-Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific Oceanatmosphere interactions. In this paper, an asymptotic method of solving the nonlinear equation for the ENSO model is used. And based on a class of oscillator of ENSO model, the approximate solution of a corresponding problem is studied by employing the perturbation method. Firstly, an ENSO model of nonlinear time delay equation of equatorial Pacific is introduced, Secondly, by using the perturbed method, the zeroth and first order asymptotic perturbed solutions are constructed. Finally, from the comparison of the values for a figure, it is seen that the first asymptotic perturbed solution using the perturbation method has a good accuracy. And it is proved from the results that the perturbation method can be used as an analytic operation for the sea surface temperature anomaly in the equatorial Pacific of the atmosphere-ocean oscillation for the ENSO model. 展开更多
关键词 NONLINEAR perturbation method El Nin^o~Southern Oscillation Model
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Variational iteration method for solving perturbed mechanism of western boundary undercurrents in the Pacific 被引量:26
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作者 莫嘉琪 林万涛 王辉 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第4期951-954,共4页
A class of perturbed mechanisms for the western boundary undercurrents in the Pacific is considered. The model of generalized governing equations is studied. Employing the method of variational iteration, an approxima... A class of perturbed mechanisms for the western boundary undercurrents in the Pacific is considered. The model of generalized governing equations is studied. Employing the method of variational iteration, an approximate solution of corresponding model is obtained. It is proved from the results that the solution for the variational iteration method can be used for analysing operation of the perturbed mechanism of western boundary undercurrents in the Pacific. 展开更多
关键词 undercurrents PERTURBATION approximate solution
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The homotopic method of travelling wave solution for El Nio tropic sea-air coupled oscillator 被引量:12
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作者 莫嘉琪 林万涛 《Chinese Physics B》 SCIE EI CAS CSCD 2008年第3期743-746,共4页
The EI Nimo and Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific sea-air interactions. In this paper, an asymptotic method of solving nonlinear equations for the ENSO model i... The EI Nimo and Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific sea-air interactions. In this paper, an asymptotic method of solving nonlinear equations for the ENSO model is proposed. And based on a class of oscillator of the ENSO model and by employing the method of homotopic mapping, the approximate solution of equations for the corresponding ENSO model is studied. It is proved from the results that homotopic method can be used for analysing the sea surface temperature anomaly in the equatorial Pacific of the sea-air oscillator for the ENSO model. 展开更多
关键词 El Nino-Southern oscillator model NONLINEAR homotopic mapping sea-air oscillator
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Singularly Perturbed Solution of Coupled Model in Atmosphere-ocean for Global Climate 被引量:11
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作者 MO Jiaqi LIN Wantao WANG Hui 《Chinese Geographical Science》 SCIE CSCD 2008年第2期193-196,共4页
A box model of the interhemispheric thermohaline circulation (THC) in atmosphere-ocean for global cli-mate is considered. By using the multi-scales method, the asymptotic solution of a simplified weakly nonlinear mode... A box model of the interhemispheric thermohaline circulation (THC) in atmosphere-ocean for global cli-mate is considered. By using the multi-scales method, the asymptotic solution of a simplified weakly nonlinear model is discussed. Firstly, by introducing first scale, the zeroth order approximate solution of the model is obtained. Sec-ondly, by using the multi-scales, the first order approximate equation of the model is found. Finally, second order ap-proximate equation is formed to eliminate the secular terms, and a uniformly valid asymptotic expansion of solution is decided. The multi-scales solving method is an analytic method which can be used to analyze operation sequentially. And then we can also study the diversified qualitative and quantitative behaviors for corresponding physical quantities. This paper aims at providing a valid method for solving a box model of the nonlinear equation. 展开更多
关键词 海洋气候 大气层 南方 地震 气候分析
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Homotopic mapping solutions for generalized method of solitary wave complex Burgers equation 被引量:12
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作者 Mo Jia-Qi 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第10期16-19,共4页
A class of generalized complex Burgers equation is considered. First, a set of equations of the complex value functions are solved by using the homotopic mapping method. The approximate solution for the original gener... A class of generalized complex Burgers equation is considered. First, a set of equations of the complex value functions are solved by using the homotopic mapping method. The approximate solution for the original generalized complex Burgers equation is obtained. This method can find the approximation of arbitrary order of precision simply and reliably. 展开更多
关键词 homotopic mapping solitary wave Burgers equation
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ASYMPTOTIC METHOD OF TRAVELLING WAVE SOLUTIONS FOR A CLASS OF NONLINEAR REACTION DIFFUSION EQUATION 被引量:9
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作者 莫嘉琪 张伟江 何铭 《Acta Mathematica Scientia》 SCIE CSCD 2007年第4期777-780,共4页
In this article the travelling wave solution for a class of nonlinear reaction diffusion problems are considered. Using the homotopic method and the theory of travelling wave transform, the approximate solution for th... In this article the travelling wave solution for a class of nonlinear reaction diffusion problems are considered. Using the homotopic method and the theory of travelling wave transform, the approximate solution for the corresponding problem is obtained. 展开更多
关键词 Travelling wave solution homotopic method of solution reaction diffusion
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THE SOLVABILITY FOR A CLASS OF SINGULARLY PERTURBED QUASI-LINEAR DIFFERENTIAL SYSTEM 被引量:7
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作者 莫嘉琪 王辉 林万涛 《Acta Mathematica Scientia》 SCIE CSCD 2008年第3期495-500,共6页
The solvability for a class of singularly perturbed Robin problem of quasilinear differential system is considered. Using the boundary layer corrective method the formal asymptotic solution is constructed. And using t... The solvability for a class of singularly perturbed Robin problem of quasilinear differential system is considered. Using the boundary layer corrective method the formal asymptotic solution is constructed. And using the theory of differential inequality the uniform validity of the asymptotic expansions for solution is proved. 展开更多
关键词 SOLVABILITY singular perturbation differential system boundary layer
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Singularly perturbed oscillator model solution of a sea-air for the ENSO 被引量:10
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作者 莫嘉琪 王辉 林万涛 《Chinese Physics B》 SCIE EI CAS CSCD 2006年第7期1450-1453,共4页
A time delay equation for the sea-air oscillator model is studied. The aim is to create an asymptotic solving method of nonlinear equation for the E1 Nifio-Southern Oscillation model. And based on a class of oscillato... A time delay equation for the sea-air oscillator model is studied. The aim is to create an asymptotic solving method of nonlinear equation for the E1 Nifio-Southern Oscillation model. And based on a class of oscillators of the model, employing the method of ENSO singular perturbation, the asymptotic solution of corresponding problem is obtained. It is proven from the results that the method of singular perturbation can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific of the atmosphere-cean oscillation for ENSO model. 展开更多
关键词 NONLINEAR time delay ENSO
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Approximate Solution for Mechanism of Thermally and Wind-driven Ocean Circulation 被引量:4
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作者 MO Jiaqi LIN Wantao LIN Yihua 《Chinese Geographical Science》 SCIE CSCD 2010年第5期383-388,共6页
The thermally and wind-driven ocean circulation is a complicated natural phenomenon in the atmospheric physics. Hence we need to reduce it using basic models and solve the models using approximate methods. A non-linea... The thermally and wind-driven ocean circulation is a complicated natural phenomenon in the atmospheric physics. Hence we need to reduce it using basic models and solve the models using approximate methods. A non-linear model of the thermally and wind-driven ocean circulation is used in this paper. The results show that the zero solution of the linear equation is a stable focus point, which is the path curve trend origin point as time (t) trend to infinity. By using the homotopic mapping perturbation method, the exact solution of the model is obtained. The homotopic mapping perturbation method is an analytic solving method, so the obtained solution can be used for analytic operating sequentially. And then we can also obtain the diversified qualitative and quantitative behaviors for corresponding physical quantities. 展开更多
关键词 海洋环流 驱动 近似解 非线性模型 风力 机理 扰动方法 同伦映射
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A CLASS OF HOMOTOPIC SOLVING METHOD FOR ENSO MODEL 被引量:6
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作者 莫嘉琪 林万涛 王辉 《Acta Mathematica Scientia》 SCIE CSCD 2009年第1期101-110,共10页
The El Nio/La Nia and the Southern Oscillation(ENSO)is an interan- nual phenomenon involved in the tropical Pacific ocean-atmosphere interactions.In this article,the aim is to create an asymptotic solving method of no... The El Nio/La Nia and the Southern Oscillation(ENSO)is an interan- nual phenomenon involved in the tropical Pacific ocean-atmosphere interactions.In this article,the aim is to create an asymptotic solving method of nonlinear equation for the ENSO models.And on the basis of a class of oscillator of ENSO models,using the method of homotopic mapping,the approximation of solution of corresponding problem is stud- ied.It is proved from the results that homotopic method can be used for analyzing the SST anomaly... 展开更多
关键词 NONLINEAR HOMOTOPY PERTURBATION ENSO model
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Asymptotic solution of a sea-air oscillator for ENSO mechanism 被引量:7
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作者 莫嘉琪 林万涛 王辉 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第3期578-581,共4页
The EI Nino/La Nina-Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific ocean-atmosphere interactions. In this paper, a class of coupled system of the ENSO mechanism is consider... The EI Nino/La Nina-Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific ocean-atmosphere interactions. In this paper, a class of coupled system of the ENSO mechanism is considered. Based on a class of oscillator of ENSO model, the asymptotic solution of a corresponding problem is studied by employing the approximate method. It is proved from the results that the perturbation method can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific and the thermocline depth anomaly of the atmosphere-ocean oscillation for the ENSO model. 展开更多
关键词 nonlinear system asymptotic method E1 Nino-Southern Oscillator model
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Homotopic method of solving a class of EI Nino/La Nina-Southern Oscillation sea-air oscillator 被引量:6
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作者 莫嘉琪 王辉 林万涛 《Chinese Physics B》 SCIE EI CAS CSCD 2006年第9期1927-1931,共5页
The EI Nino/La Nina-Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific Ocean-atmosphere interactions. In this paper, an asymptotic method of solving the nonlinear equation for ... The EI Nino/La Nina-Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific Ocean-atmosphere interactions. In this paper, an asymptotic method of solving the nonlinear equation for the ENSO model is created. And based on a class of oscillator of the ENSO model, the approximate solution of a corresponding problem is studied by employing the method of homotopic mapping. It is proved from the results that the homotopic method can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific and the thermocline depth anomaly of the atmosphere-ocean oscillation for the ENSO model. 展开更多
关键词 NONLINEAR homotopic theory EI Nifio/La Nino-Southern Oscillation model
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VARIATIONAL ITERATION SOLVING METHOD FOR SEA-AIR OSCILLATOR MODEL OF INTERDECADAL CLIMATE FLUCTUATIONS 被引量:3
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作者 MO Jia-qi LIN Yi-hua WANG Hui 《Chinese Geographical Science》 SCIE CSCD 2005年第3期227-230,共4页
Atmospheric physics is a very complicated natural phenomenon and needs to simplify its basic models for the sea-air oscillator. And it is solved by using the approximate method. The variational iteration method is a s... Atmospheric physics is a very complicated natural phenomenon and needs to simplify its basic models for the sea-air oscillator. And it is solved by using the approximate method. The variational iteration method is a simple and valid method. In this paper the coupled system for a sea-air oscillator model of interdecadal climate fluctuations is considered. Firstly, through introducing a set of functions, and computing the variations, the Lagrange multipliers are obtained. And then, the generalized expressions of variational iteration are constructed. Finally, through selecting appropriate initial iteration from the iteration expressions, the approximations of solution for the sea-air oscillator model are solved successively. 展开更多
关键词 海洋气象学 非线性 大气物理学 振荡器
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Homotopic mapping solving method of the reduces equation for Kelvin waves 被引量:3
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作者 莫嘉琪 林一骅 林万涛 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第3期4-7,共4页
A reduces equation of the Kelvin wave is considered. By using the homotopic mapping solving method, the approximate solution is obtained. The homptopic mapping method is an analytic method, the obtained solution can a... A reduces equation of the Kelvin wave is considered. By using the homotopic mapping solving method, the approximate solution is obtained. The homptopic mapping method is an analytic method, the obtained solution can analyse operations sequentially. 展开更多
关键词 homotopic mapping approximate solution Kelvin wave
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The sea-air oscillator model of decadal variations in subtropical cells and equatorial Pacific SST 被引量:2
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作者 莫嘉琪 林万涛 林一骅 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第7期1908-1911,共4页
In this paper a time delay equation for sea-air oscillator model is studied. The aim is to create an approximate solving method of nonlinear equation for sea-air oscillator model. Employing the method of variational i... In this paper a time delay equation for sea-air oscillator model is studied. The aim is to create an approximate solving method of nonlinear equation for sea-air oscillator model. Employing the method of variational iteration, it obtains the approximate solution of corresponding equation. This method is an approximate analytic method, which can be often used for analysing other behaviour of the sea surface temperature anomaly of the atmosphere-ocean oscillator model. 展开更多
关键词 nonlinear time delay E1 Nifio-Southern Oscillator variational iteration approximate solution.
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