Polyurethane-silica aerogel composite as pipeline insulation material for transporting fluid at cryogenic temperatures / by Ibrahim Nuhu, 1976-, author 656293, Muhammad Azizi Mat Yajid supervisor 562734, Nuha Awang, supervisor 319038, Wan Fahmin Faiz Wan Ali, supervisor 620075, Fakulti Kejuruteraan Mekanikal 8081