List of Articles Design Problem Open Access Article Abstract Page Full-Text 1 - Supply chain network design with multi- mode demand based on acceptance degree of fuzzy constraints violated Ali Mahmoodirad Open Access Article Abstract Page Full-Text 2 - Effect of Creative Thinking Techniques on the Designer and the Product in the Creative Architectural Problem-Solving Process; (Problem Finding to Problem Solving) seyyed ehsan mousavi Mehrdad Javidinejad Seyyed Gholamreza Islami 10.30495/ccd.2022.697812 Open Access Article Abstract Page Full-Text 3 - A population-based algorithm for the railroad blocking problem Masoud Yaghini Masoud Seyedabadi Mohamad M Khoshraftar