1. An ant colony optimization algorithm for the vehicle routing problem with stochastic demands
Kittirod Santithayee and Udom Janjarassuk

2. Feature selection for human activity classification from skeleton data using two-level selection technique
Duangpen Jetpipattanapong

3. Development of model for centralized distribution and inventory pooling case study of a beverage company
Pongchai Athikomrattanakul and Thanaporn Suwanworaphong

4. Contamination of heavy metals in sediment, polychaetes and cockles in the bang yai river estuary, phuket province
Audomlak Khongsang, Thongchai Suteerasak and Wiangchai Chongsrirattanakun

5. Hole flangeability improvement in sheared edge with compression
Jiraporn Sripraserd and Varunee Premanond

6. Synthesis of geopolymer from phimai soil with fly ash
Kornkanok Boonserm, Areeporn Baoulan, Sireerat Lisnund Intarakamhang, Natkanin Supamathanon, Sudarat Sombatsri, Kittichat Paopongpaiboon, Chaicharn Chotetanorm, Prinya Chindaprasirt

7. Determinants of gold futures investment decisions by investors in udon thani municipality, udon thani province
Khanisara Thanyasunthornsakun

8. Towards sustainable production of bioplastics
Kunnika Changwichan and Shabbir H. Gheewala