This paper presents nonlinear ordinary differential equations (ODES) of the heavier pellets movement for two phase flow, which actually represent a system of equations. The usual methods of solution such as Runge -Kut...This paper presents nonlinear ordinary differential equations (ODES) of the heavier pellets movement for two phase flow, which actually represent a system of equations. The usual methods of solution such as Runge -Kutta method and it's datum results are discussed. This paper solves ODES of general form using variable mesh-length, linearizing the nonlinear terms by finite analysis method, fuilding an iteration sequence, and amending the nonlinear terms by iteration . The conditions of convergent operation of iteration solution is checked. The movement orbit and velocity of the pellets are calculated. Analysis of research results and it's application examples are illustrated.展开更多
Chinese children are 6 centimeters （2.34 inches） miler and roughly 3 kilograms （6.6 pounds） heavier than 30 years ago as a result of the country＇s improved economic situation and better nutrition, according to a ...Chinese children are 6 centimeters （2.34 inches） miler and roughly 3 kilograms （6.6 pounds） heavier than 30 years ago as a result of the country＇s improved economic situation and better nutrition, according to a national research result published by the Ministry of Health on Dec. 30, 2006.展开更多
Perfluoroalkyl iodides reacted with conjugated dienes in aqueous acetonitrile solution in the presence of sodium dithionite at room temperature to give dimerization products, whereas, perfluo- roalkanesulfonyl bromide...Perfluoroalkyl iodides reacted with conjugated dienes in aqueous acetonitrile solution in the presence of sodium dithionite at room temperature to give dimerization products, whereas, perfluo- roalkanesulfonyl bromides reacted with conjugated dienes to form 1,4-adducts under actinic irradiation.展开更多
文摘This paper presents nonlinear ordinary differential equations (ODES) of the heavier pellets movement for two phase flow, which actually represent a system of equations. The usual methods of solution such as Runge -Kutta method and it's datum results are discussed. This paper solves ODES of general form using variable mesh-length, linearizing the nonlinear terms by finite analysis method, fuilding an iteration sequence, and amending the nonlinear terms by iteration . The conditions of convergent operation of iteration solution is checked. The movement orbit and velocity of the pellets are calculated. Analysis of research results and it's application examples are illustrated.
文摘Chinese children are 6 centimeters （2.34 inches） miler and roughly 3 kilograms （6.6 pounds） heavier than 30 years ago as a result of the country＇s improved economic situation and better nutrition, according to a national research result published by the Ministry of Health on Dec. 30, 2006.
基金This research was supported by the National Natural Science Foundation of China as an item of major project.
文摘Perfluoroalkyl iodides reacted with conjugated dienes in aqueous acetonitrile solution in the presence of sodium dithionite at room temperature to give dimerization products, whereas, perfluo- roalkanesulfonyl bromides reacted with conjugated dienes to form 1,4-adducts under actinic irradiation.
