List of Articles HOG Open Access Article Abstract Page Full-Text 1 - Centroid Distance Shape Recognition for Real Time Low Complexity Traffic Sign Recognition Hamidreza Emami Ramin Shaghaghi Kandowan Seyyed Abolfazl Hosseini Open Access Article Abstract Page Full-Text 2 - Performance Evaluation of Channel Estimation Methods in OFDM Systems Servet Köni Halil Erol