Experiment in Hoa Binh CESEAP-station to resaerch the flying distand of bronze arrow-head excavated in the Ancient Co Loa Citadel (Hanoi)

A silk fragment with weaving design of trade workshop name excavated from 18th mandarin's tomb (Project : Ancient Textile in Vietnam)

Muong' weaving decoration with phoenix and dragon designs (Muong Textile Study)

The S.E.M image to look for prehistoric bacterien from a Dongsonian ramie cloth fabric.

PEG-treating in conservating a dongsonian dugout log coffin of 2300 years old