4.Encapsulation ratio, encapsulation yield and in vitro release of particles were measured by UV method. Results indicated that encapsulation ratio and encapsulation yield increased with CyA and Cs-Chol concentration.
5.were,conversely,much more variable in their anatomic configuration,After sufficient release of peridiscal great blood vessels,the ratio of the accessible space at L34,L45,L5S1 level related to the transverse diameter of corresponding intervertebral disc were 96.2%,90.0% and 97.6% respectively.
7.The viscosity of CWS with organic calcium agent keeps 1000-1200 mPa·s when Ca/S=2. Sulfur release of CWS adding CaCO3 reduces from 98% to 52% when Ca/S molar ratio is 2 and combustion temperature is 1000oC.
8.The release stability of pellets was determined by accelerated test process. RESULTS The optimum acrylic resin RL30D/ acrylic resin RS30D ratio is 1:5 and increase of coating material is 20%. The release eqution of pellets is Q = 0.09614t - 0.008379 ( r = 0.9980 )in vitro.
