In this paper, a novel strategy for numerically evaluating the dark-solitonjitter in optical communications is proposed. It is further tested to be consistent with the famousthreshold-value-oriented method for rather ...In this paper, a novel strategy for numerically evaluating the dark-solitonjitter in optical communications is proposed. It is further tested to be consistent with the famousthreshold-value-oriented method for rather larger distances. Then our method is used to calculatethe dark-soliton jitter within arbitrary small distances. An excellent agreement is obtained withthe theoretical predictions based on the nonlinear Schrddinger equation. Our method is alsoapplicable to some more complicated systems such as the dissipative-dispersive system.展开更多
The paper reports on collaborative learning approach to a remedial class in Dynamics. It uses the Kolb model and 4MAT learning system to introduce a learning cycle based on collaborative problem solving exercises. The...The paper reports on collaborative learning approach to a remedial class in Dynamics. It uses the Kolb model and 4MAT learning system to introduce a learning cycle based on collaborative problem solving exercises. The teaching approach based on learning cycle is described giving examples of different teaching elements applied in particular quadrants of the learning cycle. The attitude of students and their different approaches to, learning are presented and discussed in detail. The results presented cover different aspects of the course delivery and students＇ perception. The results include students＇ statistics with respect to their registration and previous history related to the course, their motivatiion, assessment and satisfaction with the approach applied. This initial introduction of cooperative activities into the remedial Dynamics class can be assessed as a positive step in increasing student understanding and performance in the course. The students＇ positive reception of the non-traditional teaching method and their overall improved performance seem to confirm the advantages of collaborative leaming. In terms of the final grades, the results of the experiment were not as good as expected. However, the application of 4MAT learning system which exposed students to a variety of diverse learning styles improved the quality of education. The positive aspect of the experiment was the attitude of students and their acceptance of the new mode of course delivery. In conclusion collaborative learning could be extended beyond remedial groups to normal student classes.展开更多
文摘In this paper, a novel strategy for numerically evaluating the dark-solitonjitter in optical communications is proposed. It is further tested to be consistent with the famousthreshold-value-oriented method for rather larger distances. Then our method is used to calculatethe dark-soliton jitter within arbitrary small distances. An excellent agreement is obtained withthe theoretical predictions based on the nonlinear Schrddinger equation. Our method is alsoapplicable to some more complicated systems such as the dissipative-dispersive system.
文摘The paper reports on collaborative learning approach to a remedial class in Dynamics. It uses the Kolb model and 4MAT learning system to introduce a learning cycle based on collaborative problem solving exercises. The teaching approach based on learning cycle is described giving examples of different teaching elements applied in particular quadrants of the learning cycle. The attitude of students and their different approaches to, learning are presented and discussed in detail. The results presented cover different aspects of the course delivery and students＇ perception. The results include students＇ statistics with respect to their registration and previous history related to the course, their motivatiion, assessment and satisfaction with the approach applied. This initial introduction of cooperative activities into the remedial Dynamics class can be assessed as a positive step in increasing student understanding and performance in the course. The students＇ positive reception of the non-traditional teaching method and their overall improved performance seem to confirm the advantages of collaborative leaming. In terms of the final grades, the results of the experiment were not as good as expected. However, the application of 4MAT learning system which exposed students to a variety of diverse learning styles improved the quality of education. The positive aspect of the experiment was the attitude of students and their acceptance of the new mode of course delivery. In conclusion collaborative learning could be extended beyond remedial groups to normal student classes.
