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Congener descriptors give a shorthand notation for geometry and substituent positions. The twelve congeners that display all four of the descriptors are referred to as being "dioxin-like", referring both to their toxicity and structural features which make them similar to 2,3,7,8-tetrachlorodibenzo-p-dioxin (2378-TCDD). [1]
One of the largest deliberate PCB spills in American history occurred in the summer of 1978 when 31,000 gallons (117 m^3) of PCB-contaminated oil were illegally sprayed by the Ward PCB Transformer Company in 3-foot (0.91 m) swaths along the roadsides of some 240 miles (390 km) of North Carolina highway shoulders in 14 counties and at the Fort ...
A printed circuit board (PCB), also called printed wiring board (PWB), is a laminated sandwich structure of conductive and insulating layers, each with a pattern of traces, planes and other features (similar to wires on a flat surface) etched from one or more sheet layers of copper laminated onto or between sheet layers of a non-conductive ...
Kit-of-parts philosophy goes hand in hand with advanced manufacturing, automation, and computer and information technologies. Handling multiple identical components as instances of a master element is an efficient use of the computer in the planning stage, and use of standard components can take advantage of mass-production and mass ...
EAGLE is a scriptable electronic design automation (EDA) application with schematic capture, printed circuit board (PCB) layout, auto-router and computer-aided manufacturing (CAM) features. EAGLE stands for Easily Applicable Graphical Layout Editor ( German : Einfach Anzuwendender Grafischer Layout-Editor ) and is developed by CadSoft Computer ...
Ghana National Petroleum Corporation: Oil & gas Exploration & production Accra: 1987 Oil and gas industry S A Ghana News Agency: Consumer services Broadcasting & entertainment Accra: 1957 News agency: P A Ghana Oil Company: Oil & gas Exploration & production Accra: 1960 Oil and gas industry, GSE: GOIL: P A Ghana Ports and Harbours Authority ...
Industry in Ghana accounts for about 24.5% of total GDP. [1] However, Ghana's industrial production is rising at a 7.8% rate, giving it the 38th fastest growing industrial production in the world [ 2 ] due to government industrialization policies.
In 1963, the NRC merged with the former Ghana Academy of Sciences, a statutory learned society. Following a review in 1966, the academy was reconstituted into, essentially, its original component bodies, namely a national research organization redesignated the CSIR and a learned Society, designated the Ghana Academy of Arts and Sciences. [2]