Renovation of the 650,000-ton ethylene unit was wound up at Yangtze Petrochemical Company Limited on July 26, which draws an investment of 4.352 billion yuan. The renovation project boosts the annual ethylene producti...Renovation of the 650,000-ton ethylene unit was wound up at Yangtze Petrochemical Company Limited on July 26, which draws an investment of 4.352 billion yuan. The renovation project boosts the annual ethylene production capacity of Yangtze Company to 650,000 tons from 400,000 tons, the polyethylene and polypropylene capacity to 400,000 tons from 200,000 tons, the butadiene capacity to 200,000 tons from 100,000 tons and the gasoline hydrorefining capacity to 500,000 tons from 300,000 tons.展开更多
This article examines the soft soil roadbed reinforcement technology for widened sections of highways in a specific project.It provides an overview of the project,the principles of soft soil roadbed reinforcement tech...This article examines the soft soil roadbed reinforcement technology for widened sections of highways in a specific project.It provides an overview of the project,the principles of soft soil roadbed reinforcement technology for wide sections,and its practical application.The analysis aims to offer guidance on applying soft soil roadbed wide section reinforcement technology and enhancing the overall quality of similar projects.展开更多
With the help of the variable-coefficient generalized projected Ricatti equation expansion method, we present exact solutions for the generalized （2＋1）-dimensional nonlinear SchrSdinger equation with variable coeff...With the help of the variable-coefficient generalized projected Ricatti equation expansion method, we present exact solutions for the generalized （2＋1）-dimensional nonlinear SchrSdinger equation with variable coefficients. These solutions include solitary wave solutions, soliton-like solutions and trigonometric function solutions. Among these solutions, some are found for the first time.展开更多
文摘Renovation of the 650,000-ton ethylene unit was wound up at Yangtze Petrochemical Company Limited on July 26, which draws an investment of 4.352 billion yuan. The renovation project boosts the annual ethylene production capacity of Yangtze Company to 650,000 tons from 400,000 tons, the polyethylene and polypropylene capacity to 400,000 tons from 200,000 tons, the butadiene capacity to 200,000 tons from 100,000 tons and the gasoline hydrorefining capacity to 500,000 tons from 300,000 tons.
文摘This article examines the soft soil roadbed reinforcement technology for widened sections of highways in a specific project.It provides an overview of the project,the principles of soft soil roadbed reinforcement technology for wide sections,and its practical application.The analysis aims to offer guidance on applying soft soil roadbed wide section reinforcement technology and enhancing the overall quality of similar projects.
基金Supported by the Science Research Foundation of Zhanjiang Normal University(L0803)
文摘With the help of the variable-coefficient generalized projected Ricatti equation expansion method, we present exact solutions for the generalized （2＋1）-dimensional nonlinear SchrSdinger equation with variable coefficients. These solutions include solitary wave solutions, soliton-like solutions and trigonometric function solutions. Among these solutions, some are found for the first time.
