The needs analysis of Aviation Basic English course on ESP teaching is emphasized and the syllabus is designed here to instruct the better pre-job training for the students in the major of aircraft manufacturing techn...The needs analysis of Aviation Basic English course on ESP teaching is emphasized and the syllabus is designed here to instruct the better pre-job training for the students in the major of aircraft manufacturing technology.展开更多
In order to develop a basic electrode with low fume and good usability, a uew slag system has been designed after analyzing several basic electrode slag systems. Then in view of uniform design method, arranging the ex...In order to develop a basic electrode with low fume and good usability, a uew slag system has been designed after analyzing several basic electrode slag systems. Then in view of uniform design method, arranging the experiment points by it, the influenced laws of the uew system coating compouents on the arc stability had been searched. In the formula, niue coating compouents were taken as independent variables and they were divided into six levels in all twenty-four experiments. The arc stability was taken as function and taken down the data when welding and then put them into the computer to be processed statistically. The analysis results give the mathematical model and trend diagrams between independent variables and the function. They indicate that the effects of many coating compouents on the arc stability are in the mutual form. The mutual effects between CaCO3 and BaF2, BaF2 and BaCO3 , increases the arc stability separately. While the mutual effects between CaF2 and iron powder, the square item of iron powder itself decreases the arc stability separately.展开更多
In this paper a method is developed to model the design process gene based on the extensible basic-element with the purpose of design process optimization and reuse. First, the principle of genetic engineering based d...In this paper a method is developed to model the design process gene based on the extensible basic-element with the purpose of design process optimization and reuse. First, the principle of genetic engineering based design process optimization and reuse is put forward and analyzed. Second, the extensible basic-element model of the design process gene is established based on the models of the design process base and the base pair through analyzing the concept and structure of the design process gene and the extensible basic-element as well as its extensibility. Third, the features of divergence and scalability of the extensible basic-element model of the design process gene are discussed for carrying out the extension translation to the design process gene by way of inserting, deleting and updating design process bases. Finally, an example of building extensible basic-element models for the design process base, base pair and design process gene in mechanical product design and the mutation process of the design process gene in airplane design is presented which demonstrates the application of the method proposed in this paper.展开更多
抽水蓄能和新型储能是实现碳达峰碳中和,支撑以新能源为主体新型电力系统的重要技术和基础装备。压缩空气储能(compressed air energy storage, CAES)是一种利用压缩空气作为介质来储存能量和发电的技术,是目前除抽水蓄能以外规模最大...抽水蓄能和新型储能是实现碳达峰碳中和,支撑以新能源为主体新型电力系统的重要技术和基础装备。压缩空气储能(compressed air energy storage, CAES)是一种利用压缩空气作为介质来储存能量和发电的技术,是目前除抽水蓄能以外规模最大的物理储能方式,而硬岩浅埋型人工储气洞库选址灵活,具有规模化、商业化的发展潜力。面对我国大中型压缩空气储能电站开发建设形势和要求,结合国内外相关研究和工程实践经验,本文提出了硬岩条件下浅埋人工储气洞库整体稳定、局部稳定、循环稳定和密封层稳定的工程设计基本理念,总结提炼了洞库选址及地质勘探要求、埋深设计、储气库布置、结构设计、密封系统设计等方法,为压缩空气储能电站浅埋人工储气洞库设计提供借鉴和参考。展开更多
This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corporation(CNOOC) possesses its intellectual property right,is brought forward by advanced research,...This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corporation(CNOOC) possesses its intellectual property right,is brought forward by advanced research,concept design and combined basic design. The key technologies are the researches concerning global design,system integration,platform positioning,global performance analysis,structural strength and fatigue analysis,environment effect assessment of South China Sea,basin test and tunnel test,and construction technology of platform. Core technology of design and construction for the 6th deep water semi-submersible rig is held. Independent detail design and construction are also accomplished. These have improved technology of key equipment for China offshore oil exploitation.展开更多
文摘The needs analysis of Aviation Basic English course on ESP teaching is emphasized and the syllabus is designed here to instruct the better pre-job training for the students in the major of aircraft manufacturing technology.
基金Supported by Research Project of Heilongjiang Education Science and Technology (11521051)
文摘In order to develop a basic electrode with low fume and good usability, a uew slag system has been designed after analyzing several basic electrode slag systems. Then in view of uniform design method, arranging the experiment points by it, the influenced laws of the uew system coating compouents on the arc stability had been searched. In the formula, niue coating compouents were taken as independent variables and they were divided into six levels in all twenty-four experiments. The arc stability was taken as function and taken down the data when welding and then put them into the computer to be processed statistically. The analysis results give the mathematical model and trend diagrams between independent variables and the function. They indicate that the effects of many coating compouents on the arc stability are in the mutual form. The mutual effects between CaCO3 and BaF2, BaF2 and BaCO3 , increases the arc stability separately. While the mutual effects between CaF2 and iron powder, the square item of iron powder itself decreases the arc stability separately.
文摘In this paper a method is developed to model the design process gene based on the extensible basic-element with the purpose of design process optimization and reuse. First, the principle of genetic engineering based design process optimization and reuse is put forward and analyzed. Second, the extensible basic-element model of the design process gene is established based on the models of the design process base and the base pair through analyzing the concept and structure of the design process gene and the extensible basic-element as well as its extensibility. Third, the features of divergence and scalability of the extensible basic-element model of the design process gene are discussed for carrying out the extension translation to the design process gene by way of inserting, deleting and updating design process bases. Finally, an example of building extensible basic-element models for the design process base, base pair and design process gene in mechanical product design and the mutation process of the design process gene in airplane design is presented which demonstrates the application of the method proposed in this paper.
文摘抽水蓄能和新型储能是实现碳达峰碳中和,支撑以新能源为主体新型电力系统的重要技术和基础装备。压缩空气储能(compressed air energy storage, CAES)是一种利用压缩空气作为介质来储存能量和发电的技术,是目前除抽水蓄能以外规模最大的物理储能方式,而硬岩浅埋型人工储气洞库选址灵活,具有规模化、商业化的发展潜力。面对我国大中型压缩空气储能电站开发建设形势和要求,结合国内外相关研究和工程实践经验,本文提出了硬岩条件下浅埋人工储气洞库整体稳定、局部稳定、循环稳定和密封层稳定的工程设计基本理念,总结提炼了洞库选址及地质勘探要求、埋深设计、储气库布置、结构设计、密封系统设计等方法,为压缩空气储能电站浅埋人工储气洞库设计提供借鉴和参考。
基金National "863"Program "The study of 3000m depth water semi-submersible drilling rig key technology"( No.2006AA09A103)
文摘This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corporation(CNOOC) possesses its intellectual property right,is brought forward by advanced research,concept design and combined basic design. The key technologies are the researches concerning global design,system integration,platform positioning,global performance analysis,structural strength and fatigue analysis,environment effect assessment of South China Sea,basin test and tunnel test,and construction technology of platform. Core technology of design and construction for the 6th deep water semi-submersible rig is held. Independent detail design and construction are also accomplished. These have improved technology of key equipment for China offshore oil exploitation.
