Of course products need to be envisioned before they can be produced, but a failing of many manufacturing engineers is that of not approaching their design duties from a variety of perspectives, including manufacturing. This paper describes and analyzes a circuit board assembly line, assesses the evolution of the manufacturing of three-prong electrical plugs and speculates on the type of plastic that could be used in manufacturing processes following the path of the processes in which steel is produced. Bibliography lists 9 sources. A 15 page paper discussing the role of polymers in controlled-release drug delivery systems. Includes six illustrations and graphs.
Bibliography includes eight sources.
A 5 page description of the gas radon. Provides the history of its discovery as well as information on the molecular characteristics of the gas, the various isotopes, and potential threats to human health. Concludes that while there are valid and useful application of radon, it is a gas which presents a number of concerns. The most obvious of these are found in association with mining for uranium and in toxic waste dumps. Perhaps one of the most concerning aspects of radon overall, however, is its insidious infiltration into our homes and buildings.