photovoltaic-thermal (PV/T) system â A photovoltaic system that, in addition to converting sunlight into electricity, collects the residual heat energy and delivers both heat and electricity in usable form. Also called a total energy system or solar thermal system.olar cooling â The use of solar thermal energy or solar electricity to power a cooling appliance. Photovoltaic systems can power evaporative coolers (swamp coolers), heat-pumps, and air conditioners.
HEPATITIS B VACCINATION The first hepatitis B vaccine became commercially available in the United States in 1982. In 1986, a hepatitis B vaccine produced by recombinant DNA technology was licensed and a second recombinant-type hepatitis B vaccine was licensed in 1989.
By Fraser McAlpine | 2 years ago. British racing champion Stirling Moss launches British Master Driver tests in London, 1967 (Pic: Jim Gray / Getty Images) Letâs be honest, this question is only phrased this way to appease the two-thirds of the drivers of the world that now drive on the right-hand side of the road.