vacate order. Adopted Rules: Closed to Comments. The New York City Environmental Control Board (âECBâ) has modified the ECB Buildings Penalty Schedule to reflect the 2014 updates to the NYC Construction Codes and to more clearly and effectively allow the New York City Department of Buildings (âDOBâ) to enforce particular sections of law.
spectrum-an ordered array of the components of an emission or wave. spectrum line-an isolated component of a spectrum formed by radiation at a uniform frequency. array-an orderly arrangement; an array of troops in battle order. absorption spectrum-the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths.
Line spectra. 1  Metals (and other elements) produce a characteristic color when put into a flame. 2  The light from any vaporized element produces its own unique set of lines when sent through a slit and then through a prism. 3  Each spectral line corresponds to an electronic transition from one energy level to another.