为进一步对比研究微米硼粉与团聚硼颗粒的氧化机理,利用热重(TGA)及微商热重(DTG)法研究了其在空气中不同升温速率下的非等温氧化动力学;通过Ozawa法和Kissinger法提出了硼粉和团聚硼的氧化动力学参数;结果表明,低温下微米硼粉的氧化过...为进一步对比研究微米硼粉与团聚硼颗粒的氧化机理,利用热重(TGA)及微商热重(DTG)法研究了其在空气中不同升温速率下的非等温氧化动力学;通过Ozawa法和Kissinger法提出了硼粉和团聚硼的氧化动力学参数;结果表明,低温下微米硼粉的氧化过程可分为3步; Kissinger法和Ozawa法计算的微米硼粉活化能分别为199.0 k J/mol和206.1 k J/mol,团聚硼内硼粉氧化阶段的活化能分别为256.0 k J/mol和259.5 k J/mol,两种方法计算结果基本一致;经Coats-Redfern法推导出,微米硼粉氧化的3个阶段动力学机理方程式分别为α2、(1-α)-n(n=1,2)和α1/n(n=1,2,3),团聚硼颗粒氧化三个阶段则分别符合[-ln(1-α)]1/n(n=2,3),α1/n(n=1,2,3)和α1/n(n=1,2,3)机理函数。展开更多
Aiming at the rapid development of leisure tourism in coastal cities,the regional economic theory was first analyzed based on existing studies,the integration path of coastal leisure tourism resources in Rizhao was ex...Aiming at the rapid development of leisure tourism in coastal cities,the regional economic theory was first analyzed based on existing studies,the integration path of coastal leisure tourism resources in Rizhao was explored using the theory of unbalanced growth of regional economy and the theory of industrial agglomeration,and four countermeasures were proposed for the development of coastal leisure tourism in Rizhao City.展开更多
Tourist route design is essential to the scenic spot planning and tour route design. In this paper, four elements of tourist route design were identified to form the list of tourist route design principle. Based on th...Tourist route design is essential to the scenic spot planning and tour route design. In this paper, four elements of tourist route design were identified to form the list of tourist route design principle. Based on the analysis of Campbell model, four-point inspiration for tourist route design was summarized, a Campbell model-based schematic of the tourist route design of Rizhao was formed grounded on the analysis of tourism resources and service facilities in Rizhao, so as to explore the optimal way of the tourist route design.展开更多
文摘为进一步对比研究微米硼粉与团聚硼颗粒的氧化机理,利用热重(TGA)及微商热重(DTG)法研究了其在空气中不同升温速率下的非等温氧化动力学;通过Ozawa法和Kissinger法提出了硼粉和团聚硼的氧化动力学参数;结果表明,低温下微米硼粉的氧化过程可分为3步; Kissinger法和Ozawa法计算的微米硼粉活化能分别为199.0 k J/mol和206.1 k J/mol,团聚硼内硼粉氧化阶段的活化能分别为256.0 k J/mol和259.5 k J/mol,两种方法计算结果基本一致;经Coats-Redfern法推导出,微米硼粉氧化的3个阶段动力学机理方程式分别为α2、(1-α)-n(n=1,2)和α1/n(n=1,2,3),团聚硼颗粒氧化三个阶段则分别符合[-ln(1-α)]1/n(n=2,3),α1/n(n=1,2,3)和α1/n(n=1,2,3)机理函数。
文摘Aiming at the rapid development of leisure tourism in coastal cities,the regional economic theory was first analyzed based on existing studies,the integration path of coastal leisure tourism resources in Rizhao was explored using the theory of unbalanced growth of regional economy and the theory of industrial agglomeration,and four countermeasures were proposed for the development of coastal leisure tourism in Rizhao City.
文摘Tourist route design is essential to the scenic spot planning and tour route design. In this paper, four elements of tourist route design were identified to form the list of tourist route design principle. Based on the analysis of Campbell model, four-point inspiration for tourist route design was summarized, a Campbell model-based schematic of the tourist route design of Rizhao was formed grounded on the analysis of tourism resources and service facilities in Rizhao, so as to explore the optimal way of the tourist route design.
