NRC — aeronaut. abbr. Noise Rating Curves gen. abbr. National Research Council metal. abbr. Notch Root Contraction abbr. National Research Council (organization, USA) comp. abbr. National Research Council (Canada) acronym National Research Council… … United dictionary of abbreviations and acronyms
Film speed — is the measure of a photographic film s sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital… … Wikipedia
Sound transmission class — (or STC) is an integer rating of how well a building partition attenuates airborne sound. In the USA, it is widely used to rate interior partitions, ceilings/floors, doors, windows and exterior wall configurations (see ASTM International… … Wikipedia
Dimmer — For the New Zealand band, see Dimmer (band). A common dual dimmer manufactured by Electronic Theatre Controls (ETC) … Wikipedia
Yield curve — This article is about yield curves as used in finance. For the term s use in physics, see Yield curve (physics). Not to be confused with Yield curve spread – see Z spread. The US dollar yield curve as of February 9, 2005. The curve has a typical… … Wikipedia
motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… … Universalium
Comparison of image viewers — This article presents a comparison of image viewers and image organizers which can be used for image viewing. Contents 1 General information 2 Supported file formats 3 Supported desktop environments … Wikipedia
Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… … Universalium
Chasys Draw IES — Developer(s) John Paul Chacha s Lab [1] Stable release 3.66.02 / 5 September 2011; 51 days ago (2011 09 05) Operating system … Wikipedia
Audio system measurements — are made for several purposes. Designers take measurements so that they can specify the performance of a piece of equipment. Maintenance engineers make them to ensure equipment is still working to specification, or to ensure that the cumulative… … Wikipedia
Road traffic safety — Sidewalks, curbs and traffic signals in Maryland, United States … Wikipedia