Chronopharmacodynamics and DDS.

Chronopharmacodynamics and Chronopharmacokinetics of Pethidine in Mice

BACKGROUND Many studies have demonstrated that the pharmacokinetics and pharmacodynamics of analgesic drugs vary according to the circadian time of drug administration. This study aims at determining whether the analgesic effect and pharmacokinetics of pethidine in male BALB/c mice are influenced by administration time. METHODS A hot-plate test was used to evaluate the analgesic effect after ...

Dwight Damon, DDS, MSD.

Comparative Study of PLL, DDS and DDS-based PLL Synthesis Techniques for Communication System

The phase locked loop(PLL) has been widely used in wireless communication systems due to the high frequency resolution and the short locking time. The Direct Digital Synthesis(DDS) is also an emerging and maturing signal generation technology. But another advanced technique in which, DDS signal is mixed with the voltage-control oscillator output in the PLL feedback path. This solution helps in ...

6 HIGH SPEED DACs AND DDS SYSTEMS

A frequency synthesizer generates multiple frequencies from one or more frequency references. These devices have been used for decades, especially in communications systems. Many are based upon switching and mixing frequency outputs from a bank of crystal oscillators. Others have been based upon well understood techniques utilizing phase-locked loops (PLLs). This mature technology is illustrate...

What can DDS do for You?

..3 What does DDS do...3 The Strengths of DDS...4 DDS Compared to Other Middleware Technologies...8 Why is CoreDX DDS different?...11