Hydroxypropylcellulose(HPC) films were prepared by casting with cellulose nanocrystals in the presence of anionic surfactant sodium dodecylsulphate(SDS) and cat
The Burris Gravity Meter~(TM) manufactured by ZLS Corporation, Austin/Texas, USA, is based on the invention of L&R(L. LaCoste and A. Romberg): The ZLS(zero-length spring). A digital feedback system(ra
The previous operation of the ZLS-Burris gravity meter using a PDA already provides a significant improvement of the operation of a metal spring gravity meter. But in the practical field work the obse