The superconductivity of iron-based superconductor SmO0.7F0.2FeAs was investigated.The SmO0.7F0.2FeAs sample was prepared by the two-step solid-state reaction m
Fe3O4 magnetic nanoparticles were prepared by co-precipitation of Fe2+ and Fe3+ in an ammonia solution,and its size was about 36 am measured by an atomic force
Concentration of heavy metals in blood and urine of rabbit after inhaling three different kinds of cigarette was studied through the animal passive smoking patt
Electromagnetic relay is a widely used apparatus which usually works in a magnetic disturbance environment. To evaluate its electromagnetic compatibility (EMC)
BaY2F8 crystals had a relatively low symmetry, and its XRD data showed that those strong diffractions occurred in a narrow angle range, so it was difficult to o
Chitosan and a-cyclodextrin were used to prepare microspheres with theophylline for pulmonary delivery by spray drying method.The characteristics,mucociliotoxic