找回密码
 注册
搜索
热搜: 超星 读书 找书
查看: 376|回复: 0

[【E书资源】] Minerals, Critical Minerals, and the U.S. Economy

[复制链接]
发表于 2011-5-2 07:36:07 | 显示全部楼层 |阅读模式
作者:National Research Council
文件大小:5.98MB
文件类型:文字PDF
语言:英语
出版:The National Academies Press,2008年
页数:263
书签:有

内容简介:
This book develops such a methodology and suggests an enhanced federal initiative to collect and analyze the additional data needed to support this type of tool.

Minerals are part of virtually every product we use. Common examples include copper used in electrical wiring and titanium used to make airplane frames and paint pigments.
The Information Age has ushered in a number of new mineral uses in a number of products including cell phones (e.g., tantalum) and liquid crystal displays (e.g., indium). For some minerals, such as the platinum group metals used to make cataytic converters in cars, there is no substitute. If the supply of any given mineral were to become restricted, consumers and sectors of the U.S. economy could be significantly affected.
Risks to minerals supplies can include a sudden increase in demand or the possibility that natural ores can be exhausted or become too difficult to extract. Minerals are more vulnerable to supply restrictions if they come from a limited number of mines, mining companies, or nations. Baseline information on minerals is currently collected at the federal level, but no established methodology has existed to identify potentially critical minerals.

地址:
http://u.115.com/file/f8942e8f85#
回复

使用道具 举报

您需要登录后才可以回帖 登录 | 注册

本版积分规则

Archiver|手机版|小黑屋|网上读书园地

GMT+8, 2024-6-3 09:39 , Processed in 0.250307 second(s), 5 queries , Redis On.

Powered by Discuz! X3.5

© 2001-2024 Discuz! Team.

快速回复 返回顶部 返回列表