Mathematical Discovery: On Understanding, Learning and by George Polya, Sam Sloan

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By George Polya, Sam Sloan

Книга Mathematical Discovery: On figuring out, studying and instructing Problem... Mathematical Discovery: On figuring out, studying and educating challenge fixing Книги Математика Автор: George Polya Год издания: 1981 Формат: djvu Издат.:Wiley Страниц: 432 Размер: 3,6 Mb ISBN: 0471089753 Язык: Английский0 (голосов: zero) Оценка:Combining common Volumes I and II into one delicate conceal version, this useful e-book explains tips on how to remedy mathematical difficulties in a transparent, step by step development. It exhibits easy methods to take into consideration an issue, the right way to examine detailed situations, and the way to plot a good technique to assault and remedy the matter. Covers arithemetic, algebra, geometry, and a few trouble-free combinatorics. comprises an up to date bibliography and newly improved index.

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How do the different components of the bicycle operate and interact with each other? Given the specification of requirements for each component, the material properties that are important can be highlighted. ” Quality function deployment can also be used as a tool for translating customer needs into design requirements. Designers and engineers have to take into account a large number of different factors when selecting materials. Karana et al. (2008) showed that when designers select a material they must consider fulfilling the following quantitative requirements: 1.

1): Wj 5 n X Rij 3 Ci j 5 1; 2; . 1) i51 where Wj is the absolute weighting for the jth technical requirement, n is the number of customers’ requirements, Ci is the priority assigned to the ith CR, m is the number of engineering characteristics, and Rij is the weighting assigned to the relationship between the jth technical requirement and the ith CR. The relationship between technical requirements is shown in Room 8, which supports the product design. It is also known as a roof matrix. The analysis related to the roof of quality is improved when technical/engineering characteristics influence each other in asymmetric ways and their mutual influence varies in relation to different CRs (Reich and Levy, 2004).

Who? • Design engineers in collaboration with materials engineers. How? • • • • • Specify the requirements for the component. Transfer the requirements to materials properties. Find the material groups that satisfy the specification. Find the individual materials that satisfy the specification. Identify the "best" materials that satisfy the specification. 1 Materials selection basics (Sandstrom, 1994). chosen and if it needs to be stiff, rubber would not be chosen, unless there are compelling reasons.

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