Nonlinear conjugate gradient methods have played an important role in solving large scale uncon-srined optimization problems,it is careterired by the simplicity of their iteration and their low memory requirements.It ...Nonlinear conjugate gradient methods have played an important role in solving large scale uncon-srined optimization problems,it is careterired by the simplicity of their iteration and their low memory requirements.It is wll-known that the dreetion generted by a cojugate gradient method may be not a de-scent direction.In this paper,a new class of nonlinear conjugate gradient method is presented,its serch di-rection is a descent direction for the oiective funetion.If the obiective function is dfrentiable and its gradi ent is Lipschitz continuous,the line search satisfies strong Wolle condition,the global convergence result is established.展开更多
After analyzing the three dimensions(teachers,students and classroom activities) in EFL teaching,it can be found that rapport and delivery are of great importance to a teacher;a quality teacher should comprehensively ...After analyzing the three dimensions(teachers,students and classroom activities) in EFL teaching,it can be found that rapport and delivery are of great importance to a teacher;a quality teacher should comprehensively understand his students and always keep individual differences in mind and modern teachers should also grasp many skills of managing classroom activi ties.In order to activate students'motivation and at the same time keep a high teaching efficiency level,classroom teaching should be carefully shifted from teacher-centered to student-centered when possible.In this process,class activities can greatly reinforce a student-centered class.展开更多
Blending is a very important kind of word formation in English.After introducing its history briefly,the paper probes into the formation,part of speech,semantic relations,stylistic features and translation methods of ...Blending is a very important kind of word formation in English.After introducing its history briefly,the paper probes into the formation,part of speech,semantic relations,stylistic features and translation methods of English blends.展开更多
Sister Carrie dramatized by Dreiser is totally a material pursuer. She is selfish and accumulates money in a crazy way.What she does inevitably centers on materials. Living with Drouet and later Hurstwood, Carrie gets...Sister Carrie dramatized by Dreiser is totally a material pursuer. She is selfish and accumulates money in a crazy way.What she does inevitably centers on materials. Living with Drouet and later Hurstwood, Carrie gets what she wants and enjoys the luxurious life in an easy way. However, with the satisfaction of some of her desires, Carrie's desires grow and expand. With enough food and clothes, she needs luxury. Hurstwood's failure in business leads Carrie to the stage and finally she makes a success and becomes a famous actress in Broadway. She gets more money, but her desires grow even higher. Nothing can satisfy her.In this essay, the author tries to analyze Carrie according to Freud's and Guo Weilu's theories and prove that Carrie is totally a material pursuer.展开更多
基金NSF Project of China Grant(61273179,11201039)Hubei Provincial Department of Education Grant(D20101304)
文摘Nonlinear conjugate gradient methods have played an important role in solving large scale uncon-srined optimization problems,it is careterired by the simplicity of their iteration and their low memory requirements.It is wll-known that the dreetion generted by a cojugate gradient method may be not a de-scent direction.In this paper,a new class of nonlinear conjugate gradient method is presented,its serch di-rection is a descent direction for the oiective funetion.If the obiective function is dfrentiable and its gradi ent is Lipschitz continuous,the line search satisfies strong Wolle condition,the global convergence result is established.
文摘After analyzing the three dimensions(teachers,students and classroom activities) in EFL teaching,it can be found that rapport and delivery are of great importance to a teacher;a quality teacher should comprehensively understand his students and always keep individual differences in mind and modern teachers should also grasp many skills of managing classroom activi ties.In order to activate students'motivation and at the same time keep a high teaching efficiency level,classroom teaching should be carefully shifted from teacher-centered to student-centered when possible.In this process,class activities can greatly reinforce a student-centered class.
文摘Blending is a very important kind of word formation in English.After introducing its history briefly,the paper probes into the formation,part of speech,semantic relations,stylistic features and translation methods of English blends.
文摘Sister Carrie dramatized by Dreiser is totally a material pursuer. She is selfish and accumulates money in a crazy way.What she does inevitably centers on materials. Living with Drouet and later Hurstwood, Carrie gets what she wants and enjoys the luxurious life in an easy way. However, with the satisfaction of some of her desires, Carrie's desires grow and expand. With enough food and clothes, she needs luxury. Hurstwood's failure in business leads Carrie to the stage and finally she makes a success and becomes a famous actress in Broadway. She gets more money, but her desires grow even higher. Nothing can satisfy her.In this essay, the author tries to analyze Carrie according to Freud's and Guo Weilu's theories and prove that Carrie is totally a material pursuer.
