Results of a feasibility study indicate that measures of trans-stenotic pressure gradients can be safely and effectively obtained in intracranial large arteries through the use of a guidewire. Use of ...

the UV to about 3.5um in the infrared, and their melting point is 2040 C. Sapphire fibres are used for pyrometry in high temperature systems such as turbine and internal combustion engines. While ...

THE scale method is still regarded as the most accurate and reliable method for measuring refractive index gradients and is extensively used in diffusion and sedimentation measurements. The ...

Gradient elution involves a programmed change in mobile-phase composition over time, transitioning from weak to strong during a separation. Linear gradients, characterized by a constant change in ...