منابع مشابه
Recycling of Precious Metals from E-scrap
Recovery of gold and other valuable metals from electronic scrap involves a complex metallurgical flow sheet and requires state-of-the-art recovery technologies that are available in large-scale, integrated smelter and refinery operations. At the end of their use, electronic and other electrical product scrap offer an important recycling potential for the secondary supply of gold and silver...
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Session 1948-49 I.T is customary on the occasion of his inauguration for your President to give you an address, and a wide variety of subjects has been chosen in previous years. Sometimes the speaker discussed some facets of his professional work, and at other times the address reflected his interest in matters not strictly medical, as in last year's memorable dissertation. It was chance which ...
متن کاملE-scrap: An Opportunity
The success of the electronics industry over the last decade in developing the mass consumer market for computers, cellphones and other personal electronic equipment has been phenomenal. Society must now finds ways of safely and economically recovering the materials that are embedded in these products. This will require significant investment by governments, industry and individuals, in technol...
متن کامل“Scrap Your Boilerplate” Explained
The paper “Scrap your Boilerplate” (SYB) introduces a combinator library for generic programming that offers generic traversals and queries. Classically, support for generic programming consists of two essential ingredients: a way to write type-indexed functions, and independently, a way to access the structure of data types. SYB seems to lack the second. As a consequence, it is difficult to co...
متن کامل"Scrap Your Boilerplate" Revolutions
Generic programming allows you to write a function once, and use it many times at different types. Traditionally, generic functions are defined by induction on the structure of types. “Scrap your boilerplate” (SYB) is a radically different approach that dispatches on the structure of values. In previous work, we have shown how to reconcile both approaches using the concept of generic views: man...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1889
ISSN: 0036-8733
DOI: 10.1038/scientificamerican06081889-11198asupp