Congressman Ryan Mackenzie (R-PA-7) recently visited a HVAC business in Allentown, PA, to learn more about the HVAC supply ...

In order to meet the requirements of electrolytic copper-foil, a 6.5V/50kA power supply system composed of ten power modules is developed. The power module is composed of two-leg PWM rectifier and ...

NOVOSIBIRSK, July 7. /TASS/. An air ventilation device system operating in the cold climate of Siberia and the Arctic was developed in Novosibirsk, the Gyplar developer company's Technical Director ...

Methanol fuel supply and its control system have the problems faced by modern systems engineering implementation centrally, such as high integration, multiple design disciplines, and strong coupling ...

Ventilation shutdown plus (VSD+) is an incredibly inhumane method of killing lots of animals at once by shutting off the air supply and driving up temperatures, causing organ failure and suffocation.

Brands have spent billions developing futuristic breathable materials for athletic wear, but the best approach might be a bit lower tech.

Excess concentrations of lead (Pb) were found in tap water from drinking water supply systems of high-rise buildings in 11 public rental housing (PRH) estates in Hong Kong, posing threats to public ...