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Extreme metal consists of a number of related heavy metal music subgenres that have developed since the early 1980s, usually characterized by a more abrasive, harsher, underground, non-commercialized style or sound nearly always associated with genres like black metal, death metal, doom metal, thrash metal, and sometimes speed metal. [110]
Metal Gear 20th Anniversary: Metal Gear Music Collection is a compilation album released for the video game series Metal Gear on July 18, 2007. The album contains songs from various games in the series, as well as a new song titled "Metal Gear 20 Years History — Past, Present, Future —", a medley spanning the whole series.
Metal impurities can be removed by stirring the mixture in either of the two acids and recovering the remaining platinum. [ 66 ] One suitable method for purification for the raw platinum, which contains platinum, gold, and the other platinum-group metals, is to process it with aqua regia , in which palladium, gold and platinum are dissolved ...
Plato (/ ˈ p l eɪ t oʊ / PLAY-toe; [1] Greek: Πλάτων, Plátōn, born c. 428-423 BC, died 348 BC) was an ancient Greek philosopher of the Classical period who is considered a foundational thinker in Western philosophy and an innovator of the written dialogue and dialectic forms.
The windows acted as ion selectivity filters for alkali metal ions, while the cavities functioned as pores for transport. The ZIF-8 [ 207 ] and UiO-66 [ 208 ] membranes showed a LiCl / RbCl selectivity of ~4.6 and ~1.8, respectively, much higher than the 0.6 to 0.8 selectivity in traditional membranes. [ 209 ]