The term monographia is derived from the Greek 'mono' (single) and grapho (to write), meaning writing on a single subject. Unlike a textbook, which surveys the state of knowledge in a field, the main purpose of a monograph is to present primary research and original scholarship.he term monographia is derived from the Greek 'mono' (single) and grapho (to write), meaning writing on a single subject. Unlike a textbook, which surveys the state of knowledge in a field, the main purpose of a monograph is to present primary research and original scholarship.
LEDs are âdirectionalâ light sources, which means they emit light in a specific direction, unlike incandescent and compact fluorescent bulbs, which emit light and heat in all directions. For this reason, LED lighting is able to use light and energy more efficiently in many applications.
Part of the Peripherals glossary: Organic LED (light-emitting diode) is a display technology based on the use of an organic substance, typically a polymer, as the semiconductor material in light-emitting diodes (LED s).A polymer can be a natural or synthetic substance and macro or micro in size.Examples of organic polymers include proteins and DNA.art of the Peripherals glossary: Organic LED (light-emitting diode) is a display technology based on the use of an organic substance, typically a polymer, as the semiconductor material in light-emitting diodes (LED s).