In this Article dispersion characteristic of conventional optical waveguide with helical winding at core – cladding interface has been obtained. The model dispersion characteristics of optical waveguide with helical winding at core-cladding interface have been obtained for five different pitch angles. This paper includes dispersion characteristics of optical waveguide with helical winding, and ...

purpose:the user interface of federated search engines is very important because it can make effective search, retrieval, and user interaction with the system. . identifying the most important indicators of the federated search engine user interface is a solution to enhance the applicability of the search engine interface. the purpose of this study was to examine the role of search, screen, nav...

the main purpose of this research is to explain the elements and characteristics of religious education curriculum based on the task-oriented approach. to achieve this purpose, frankena`s model for analyzing a normative philosophy; deductive method was used. based on the results, the task-oriented the ultimate goal of religious education and then ten target interface for religious education wer...