Acetylenic monomers containing highly polar functional groups, especially those with active hydrogen atoms, have been difficult to polymerize because their toxic interactions with transition metal ...

Explore the making process of a mini excavator bucket in a small workshop, showcasing the logic skills and craftsmanship that ...

Students used various welding and cutting processes during the project: arc, metal inert gas, oxy-acetylene and plasma arc, Davis said. "They got all the processes in on this trailer," he said.