One of the most common myths about nodules is the diagnosis itself! Usually doctorâs donât have the necessary equipment (stroboscopy) to diagnose vocal problems. So all problems are called nodules. Every singer has a colleague who had ânodulesâ for this reason.
Glossary of HVAC terms. HVAC (heating, ventilation, and air conditioning) is a major subdiscipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency.
Variable refrigerant flow (VRF) â or Daikinâs variable refrigerant volume (VRV) â HVAC systems are changing the HVAC industry in a variety of ways. â¢ VRF technology is ideally suited to answer societal demands for increased energy efficiency from large appliances.