A series of LiNbO_3 crystals tri-doped with Mg~(2+),Yb~(3+),and Ho~(3+) are grown by the conventional Czochraski technique.The concentrations of Mg~(2+),Yb~(3+)
Two new tremulane sesquiterpenes coriolopsin A(1) and coriolopsin B(2),together with two known ones conocenol C(3) and ceriponol E(4),were isolated from the fer