For example, the bookmobile was a WPA programâold bread and milk trucks full of nailed-up shelves. James Lee Burke Talks About His Fiction, History, and the American Dream David Masciotra July 19, 2014. The first trails at the area were cut by the Works Progress Administration (WPA) in the winter of 1936.
1 The goal of the BOM is to give a broad overview of the product. 2  Those using the BOMs do not need to see the overall structure of the product's design; electrical engineers, for example, may only need to see the wiring schematic. 3  You need your BOM to provide an overall part summary in one location.
Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through an ultra-thin specimen, interacting with the specimen as it passes through. TEM is composed of several components, which include a vacuum system in which the electrons travel, an electron emission source for generation of the electron stream, a series of electromagnetic lenses, as well as electrostatic plates. The latter two allow the operator to guide and manipulate the beam as required.