A Material-Framework-Object Model for Learning Material Management
Following problems have been found in traditional learning material management model based on courseware: common redundancy, the overlapped and desultory construction of the learning materials, and hardly adaptive to the diversity of the learning objectives and teaching methodologies. In the paper, a material-framework-objective model was proposed to improve the efficiency and quality of learning material management in the distance education by separating and recombining the basic materials, courseware, knowledge-points and learning goals. The model can also achieve the unification of the reuse, mobility and pertinence of the learning materials. A prototyping based on this model has been developed and taken into practice in Dongbei University of Financial and Economics.
Using Workflow Technology to Manage Flexible e-Learning Services
Workflow technology provides a suitable platform to define and manage the coordination of business process activities. We introduce a flexible e-learning environment – called Flex-eL – that has been built upon workflow technology. The workflow functionality of Flex-eL manages the coordination of learning and assessment activities of the course process between students and teaching staff. It provides a unique environment for teachers to design and develop process-centric courses and to monitor student progress. It allows students to learn at their own pace while observing the learning guidelines and checkpoints modeled into the course process by teaching staff. We also report on the successful deployment of the concept and system for university courses and our experiences from the implementation.
The Application of Using Bezier Curve to Design Turbine Blade
The blade of the turbine is analyzed,the principle and characteristics of the Bezier curve are elaborated,the paper presents a method of using Bezier curve to design turbine blade.It was proved that it's a good and simple way to design turbine blade.Through this way,you can build mathematics model easily.It's certainly had some superiority.