The National Electrical Manufacturers Association (NEMA) has published EW 4-2009, the first new edition in 15 years. This standard provides manufacturers and users of arc welding and cutting equipment ...

ATLANTA - A new standard from the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) provides a comprehensive set of airside, piping, controls, and equipment symbols ...

A visual notation is a graphical representation. It consists of graphical symbols, their definitions, and a visual grammar. Some examples of graphical symbols are: lines, surfaces, volumes, textual ...

A logotype, commonly referred to as a logo, is a graphical symbol created for an individual company or product. It is designed to communicate quickly, and to be a distinctive and easily recognizable ...

The heart sign has entered the Oxford English Dictionary as the first graphical symbol to signify a word in the reference work's 127-year history. The symbol is among 45,437 new words and meanings ...

Drawing diagrams with nodes and arrows is the common approach for representing how proteins and genes interact, and papers frequently include such informal node-and-arrow diagrams. Although such ...