Особенности антэкологии и семенной продуктивности пустырника сизого и пустырника пятилопастного

The ultrasonic spectroscopy (broadband pulse) technique was applied to simultaneously measure phase velocity and attenuation coefficient of shear waves in bovine compact bone at frequencies ranging from 4.0-10.0 MHz. It was found that the ratio of attenuation coefficient of shear waves to that of lo... View More