Browsing by Subject "Reflectivity"

Now showing 1 - 3 of 3

Open Access
English language and literature students' perceptions of reflective writing, its effects on engagement in writing and literature
(2013) Uçar, Hakan
This study investigated the effects of the reflective writing process on English Language and Literature students’ engagement with writing and literature and their demonstrated engagement level in the reflective writing process. This study was conducted over a period of nine weeks with six students from the English Language and Literature Department in Cumhuriyet University in Sivas. Students read excerpts from literary works of different genres and following discussion sessions on these works, wrote reflective responses. Their responses were analyzed using a reflective writing evaluation framework, developed by the researcher from the related literature to investigate the effects of reflectivity on students’ engagement with writing and literature. Semi-structured interviews were conducted with each participant in order to gain an in-depth understanding of their perceptions of the reflective writing process. The findings found that the reflective writing process significantly increased the students’ engagement levels with writing and literature, and that they gained a positive attitude towards reflective writing. The results of the study may help primarily instructors of writing courses and lecturers in literature departments in contributing to students’ engagement with writing and literature by making use of reflective writing in the form of a voluntary extra-curricular activity.
Open Access
Object rigidity and reflectivity identification based on motion analysis
(IEEE, 2010) Zang, D.; Schrater P.R.; Doerschner, Katja
Rigidity and reflectivity are important properties of objects, identifying these properties is a fundamental problem for many computer vision applications like motion and tracking. In this paper, we extend our previous work to propose a motion analysis based approach for detecting the object's rigidity and reflectivity. This approach consists of two steps. The first step aims to identify object rigidity based on motion estimation and optic flow matching. The second step is to classify specular rigid and diffuse rigid objects using structure from motion and Procrustes analysis. We show how rigid bodies can be detected without knowing any prior motion information by using a mutual information based matching method. In addition, we use a statistic way to set thresholds for rigidity classification. Presented results demonstrate that our approach can efficiently classify the rigidity and reflectivity of an object. © 2010 IEEE.
Open Access
Slow surface plasmons on Moiré surfaces
(IEEE, 2009) Şenlik, S. Seçkin; Kocabaş, A.; Aydınlı, Atilla
In this report, the authors present the design, fabrication and realization of coupled plasmonic cavities using metallic Moire structures. The phase shifts at the nodes of Moire pattern enable localization of SPPs resulting in a mini band in the band gap region. The authors find group velocities around V g =0.44c at the center of the mini band and approaches to zero at the edges of mini band.