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.
An RTU is a type of AHU. AHU stands for Air Handling Unit and the acronym RTU means Rooftop Unit. The Roof Top Unit is an outdoor AHU. As RTUs are mounted on the roof, there is no concern about creating extra space indoors for it as would be the case for the other types of AHU.
RTV Silicone. Room Temperature Vulcanizing (RTV) silicone is a rubber polymer used to create molds, prototypes, and sealant. It is extremely flexible and quite tear resistant. It is made up of two separate components: a base and a curative.RTV silicone can be poured, sprayed, brushed, or pumped onto a surface.TV silicone is made through a process known as vulcanization. This process involves mixing rubber polymers with additives such as sulfur in order to make the silicone harder or more flexible. Humidity in the air cures RTV-1, a single compound RTV silicone type, which is available in both fluid and paste forms.