Various medical devices (such as catheters and guide wires) need hydrophilic coatings to reduce friction for maneuvering through blood vessels. They did so by studying hydrophilic, lipophilic, free-soluble and insoluble-bound phenolic extracts, using a lipoxygenase/4-nitroso-N,N-dimethylaniline (LOX/RNO) technique.
The clock rate typically refers to the frequency at which a chip like a CPU(central processing unit), one core of a multi-core processor, is running and is used as an indicator of the processor's speed. It is measured in the SI unit hertz.
The speed of the clock is measured in Megahertz (MHz). Well, the frequency is essentially how fast something processes in a computer. In this case(memory), it determines how fast information is going to go to your memory and back. DDR, DDR2, DDR3 memories follow the DDRxxx/PCyyyy classification.