What is D COPD GOLD?

What is D COPD GOLD? Introduction: Patients with higher of Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages (III or IV) or past frequency of exacerbations (> 2/year)/hospitalizations (>1/year) are categorized into group D in the 2011 GOLD classification. What is GOLD Stage D? COPD GOLD Grade C: A Read more…

What is chip sequence in CDMA?

What is chip sequence in CDMA? In digital communications, a chip is a pulse of a direct-sequence spread spectrum (DSSS) code, such as a pseudo-random noise (PN) code sequence used in direct-sequence code division multiple access (CDMA) channel access techniques. … Why do we need to choose chip sequences in Read more…