selective harmonic elimination (she) is a powerful modulation scheme aims to find the required switching angles in order to eliminate the number of undesired harmonics. she is a complicated problem which consists of several nonlinear equations which have multiple local minima. in order to eliminate the higher number of undesired harmonics and as a result reducing the total harmonic distortion (...

this study sought to investigate the effect of cooperative learning on efl learners’ creativity and motiva- tion. accordingly, 66 pre-intermediate female learners were selected among 90 through their performance on a piloted sample preliminary english test. learners were assigned into two control and experimental group. the abedi-schumaker creativity test (act) and the attitude/motivation test ...

more than anything else, education is rooted in the interaction between students and teachers. interaction is a more comprehensive concept than mutual influence which also exists among objects; the former is only possible when a relation among two agents is at stake. in this relation other components exist as well, such as books and educational tools, however, all these components are like sate...

This paper describes one university’s approach to improving the quality of teaching and learning at the institutional level, based on the premise of improving the design of curriculum rather than focusing on the skills of teachers as such. The paper describes the process by which university-wide principles of curriculum design were defined and agreed, as well as the parallel campaigns needed to...

test washback is generally defined as the influence of tests on teaching and learning process. inspired by messick’s consequential validity and shohamy’s critical language testing, this critical impact study explored the transformative or reproductive practices different stakeholders undertake in relation to the detrimental impacts of konkoor in iran. the participants were 60 efl teachers, a sa...

this study was an attempt to shed light on the relationship between perceptual learning styles and perceptual teaching styles of iranian efl learners and teachers. it further investigated the relationship between perceptual learning style and the age, gender, and proficiency of iranian efl learners. a total of 112 students and 23 teachers participated in this study. the data was collected using...

Ultimately with the raise of computer technology, blended learning has found its way into teaching. The technology continues to evolve, challenging teachers and lecturers alike. Most studies on blended learning focus on the practical or applied side and use essentially pedagogical concepts. This study demonstrates that the leadership sciences can enrich pedagogy in building a framework for teac...