Once a structure has been analyzed (by using geometry alone if the analysis is determinate, or geometry plus assumed member sizes and materials if indeterminate), final design can proceed. Deflections and allowable stresses or ultimate strength must be checked against criteria provided either by the owner or by the governing building codes. Safety at working loads must be calculated. Several methods are available, and the choice depends on the types of materials that will be used. Once a satisfactory scheme has been analyzed and designed to be within project criteria, the information must be presented for fabrication and construction. This is commonly done through drawings, which indicate all basic dimensions, materials, member sizes, the anticipated loads used in design, and anticipated forces to be carried through connections.
Ethanol or ethyl alcohol is commonly called alcohol. Ethanol in its pure state is a colorless flammable liquid which is completely miscible with water. Ethanol is made from the fermentation of sugars from agricultural crops such as 1. barley used to make beer or 2. grapes used to make wine. The process of distillation is used to concentrate the ethanol to around 95% which is the maximum that can be achieved by this process. Molecular sieves are used to produce 100% ethanol. Ethanol produced from crops or biomass material is known as bioethanol. Ethanol may also be produced by the hydration of ethylene gas from the petroleum industry.