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Solution and Application Development of the Supply Chain Management System in SINOPEC
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作者 Zhu Jianmin 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2004年第4期1-6,共6页
SINOPEC is an integrated energy and chemical company engaging in upstream,midstream and downstream operations. The business of SINOPEC covers E&P of oil and gas, refining,chemical production, as well as sales and ... SINOPEC is an integrated energy and chemical company engaging in upstream,midstream and downstream operations. The business of SINOPEC covers E&P of oil and gas, refining,chemical production, as well as sales and marketing of refined oil products. In the field of oil andnatural gas exploration and development, there are 13 upstream subsidiaries in SINOPEC. By the endof 2003, the proven reserves of crude oil were 3,257 mmbbls, and natural gas reserves totaled2,887.6 bcf. The oil and gas production in 2003 included 270.96 mmbbls of oil and 187.7 bcf ofnatural gas. In the area of middle-stream operation, SINOPEC has 33 refineries. The total capacityof crude distillation is 153.9 million tons/year, about 51% of the total distillation capacity inChina. In 2003, 123.5 million tons of crude oil was processed, around 53% of total crude processedin China. 展开更多
关键词 PIMS solution and application Development of the Supply Chain Management System in SINOPEC
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COMPLEX VARIABLE-VARIATIONALMETHOD OF SOLUTION FOR BI-METALLAMINATES WITH INTERFACE CRACKSAND ITS APPLICATION IN GLUED JOINTS
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作者 Meng Qingchun and Zhang XingBeijing University of Aeronautics and Astronautics 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 1990年第3期187-193,共7页
In this paper, the eigen function expansions of displacements and stresses of bi-metal laminates with interface cracks are obtained. Furthermore, the stress intensity factors are determined by the variational method t... In this paper, the eigen function expansions of displacements and stresses of bi-metal laminates with interface cracks are obtained. Furthermore, the stress intensity factors are determined by the variational method to satisfy the boundary conditions and there are only line integrals in the variational equations due to the previous satisfaction of all basic equations. The computations show that this method of solution has the advantages of rapid convergency and time-saving. The results obtained by this method for homogeneous material agree with the known ones very well. 展开更多
关键词 line COMPLEX VARIABLE-VARIATIONALMETHOD OF solution FOR BI-METALLAMINATES WITH INTERFACE CRACKSAND ITS application IN GLUED JOINTS BI 一夕 ITS
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APPLICATION OF THE METHOD OF THE RECIPROCAL THEOREM TO FINDING DISPLACEMENT SOLUTIONS OF CUBES
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作者 付宝连 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1989年第4期309-320,共12页
In this paper the method of reciprocal theorem is extended to find solutions of three-D problems of elasticity.First we give the basic solution of the cube with six surfaces fixed as the basic system and then using th... In this paper the method of reciprocal theorem is extended to find solutions of three-D problems of elasticity.First we give the basic solution of the cube with six surfaces fixed as the basic system and then using the reciprocal theorem between the basic system acted on by unit concentrated loads and the actual system with prescribed surface displacements, we find displacement solution of the actual system. 展开更多
关键词 CUBE OO CO application OF THE METHOD OF THE RECIPROCAL THEOREM TO FINDING DISPLACEMENT solutionS OF CUBES
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THE EXISTENCE AND ASYMPTOTIC BEHAVIOR OF SOLUTIONS FOR EVOLUTION EQUATIONS AND APPLICATIONS TO P. D. E.
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作者 张壮志 《Acta Mathematica Scientia》 SCIE CSCD 1991年第2期231-240,共10页
The main purpose of this paper is to discuss the existence and asymptotic behavior of solutions for [GRAPHICS] and for which the sufficient conditions of asymptotic behavior are obtained and the restriction for the ex... The main purpose of this paper is to discuss the existence and asymptotic behavior of solutions for [GRAPHICS] and for which the sufficient conditions of asymptotic behavior are obtained and the restriction for the existence is reduced. 展开更多
关键词 THE EXISTENCE AND ASYMPTOTIC BEHAVIOR OF solutionS FOR EVOLUTION EQUATIONS AND applicationS TO P
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AN APPLICATION OF THE EXPONENTIAL CUBIC SPLINES TO NUMERICAL SOLUTION OF A SELF-ADJOINT PERTURBATION PROBLEM
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作者 Mirjana Stojanovic 《Analysis in Theory and Applications》 1998年第2期38-43,共6页
We present a class of the second order optimal splines difference schemes derived from ex- ponential cubic splines for self-adjoint singularly perturbed 2-point boundary value problem. We prove an optimal error estima... We present a class of the second order optimal splines difference schemes derived from ex- ponential cubic splines for self-adjoint singularly perturbed 2-point boundary value problem. We prove an optimal error estimate and give illustrative numerical example. 展开更多
关键词 exp AN application OF THE EXPONENTIAL CUBIC SPLINES TO NUMERICAL solution OF A SELF-ADJOINT PERTURBATION PROBLEM
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Optimization Model: Resource Distribution for Risk Factors of Type 2 Diabetes Prevention
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作者 Kanika Misra 《Open Journal of Optimization》 2023年第1期1-9,共9页
Type 2 Diabetes, a lifestyle disease, can be prevented/delayed by adopting a healthy lifestyle. Awareness of the same amongst the citizens can be one of the best ways to initiate a decline in the positive census of th... Type 2 Diabetes, a lifestyle disease, can be prevented/delayed by adopting a healthy lifestyle. Awareness of the same amongst the citizens can be one of the best ways to initiate a decline in the positive census of the disease. We use this paper to illustrate an optimization model where the budget can be distributed based on the census data of the risk factors involved. It uses a non-linear programming model and can easily be modified into a linear one. The alternative options and constraints too, are mentioned in the paper. The results show that the mid-western states need more share of the allocation based on risk factors. The model distributes the percentage of the budget allocated to different states based on a fixed risk factor constraint. 展开更多
关键词 Optimization ALGORITHMS application Based solution DIABETES RESOURCES SOLVER Excel Objective Function
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On the application of wavelet transform to the solution of integral equations for acoustic radiation and scattering 被引量:1
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作者 WEN Lihua, ZAHNG Jingmei, SUN Jincai (Department of Civil Engineering & Architecture, Northwestern Polytechnical Universitg Xi’an 710072) 《Chinese Journal of Acoustics》 2002年第2期178-192,共15页
The application of wavelets is explored to solve acoustic radiation and scattering problems. A new wavelet approach is presented for solving two-dimensional and axisymmetric acoustic problems. It is different from the... The application of wavelets is explored to solve acoustic radiation and scattering problems. A new wavelet approach is presented for solving two-dimensional and axisymmetric acoustic problems. It is different from the previous methods in which Galerkin formulation or wavelet matrix transform approach is used. The boundary quantities are expended in terms of a basis of the periodic, orthogonal wavelets on the interval. Using wavelet transform leads a highly sparse matrix system. It can avoid an additional integration in Galerkin formulation, which may be very computationally expensive. The techniques of the singular integrals in two-dimensional and axisymmetric wavelet formulation are proposed. The new method can solve the boundary value problems with Dirichlet, Neumann and mixed conditions and treat axisymmetric bodies with arbitrary boundary conditions. It can be suitable for the solution at large wave numbers. A series of numerical examples are given. The comparisons of the results from new approach with those from boundary element method and analytical solutions demonstrate that the new techique has a fast convergence and high accuracy. 展开更多
关键词 On the application of wavelet transform to the solution of integral equations for acoustic radiation and scattering
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THE APPLICATION OF INTEGRAL EQUATIONS TO THE NUMERICAL SOLUTION OF NONLINEAR SINGULAR PERTURBATION PROBLEMS
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作者 Wang Guo-ying (Nanjing University, Nanjing, China) 《Journal of Computational Mathematics》 SCIE CSCD 1994年第1期36-45,共10页
The nonlinear singular perturbation problem is solved numerically on nonequidistant meshes which are dense in the boundary layers. The method presented is based on the numerical solution of integral equations [1]. The... The nonlinear singular perturbation problem is solved numerically on nonequidistant meshes which are dense in the boundary layers. The method presented is based on the numerical solution of integral equations [1]. The fourth order uniform accuracy of the scheme is proved. A numerical experiment demonstrates the effectiveness of the method. 展开更多
关键词 BI THE application OF INTEGRAL EQUATIONS TO THE NUMERICAL solution OF NONLINEAR SINGULAR PERTURBATION PROBLEMS
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INNOVATIVE BIOLOGICAL AND CHEMICAL STUDIES OF HERBAL MEDICINES APPLICATION OF MASSLYNX AND UNIFI PLATFORM SOLUTION TO ACCELERATE THE IDENTIFICATION OF INGREDIENTS AND THEIR METABOLITES OF TCM
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作者 Yi Dai Zhi-hong Yao +5 位作者 Min Li Pei-le Wang Jianliang Geng Zi-fei Qin Feng-xiang Zhang Xinsheng Yao 《World Journal of Traditional Chinese Medicine》 2015年第4期83-83,共1页
Traditional Chinese Medicine(TCM)has been used in prevention and treatment of disease in clinical practice for thousands of years,with an indispensable role of multiple ingredients.Thus,a rapid and effective chemical ... Traditional Chinese Medicine(TCM)has been used in prevention and treatment of disease in clinical practice for thousands of years,with an indispensable role of multiple ingredients.Thus,a rapid and effective chemical ingredients analysis was of necessary to be established for the evaluation of the holistic quality of TCM.As could afford the data with high resolution and high sensitivity, 展开更多
关键词 TCM INNOVATIVE BIOLOGICAL AND CHEMICAL STUDIES OF HERBAL MEDICINES application OF MASSLYNX AND UNIFI PLATFORM solution TO ACCELERATE THE IDENTIFICATION OF INGREDIENTS AND THEIR METABOLITES OF TCM
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