ScienceJohn Michels (Journalist) 1952 |
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Стр. 85
... indicates a vegetation very similar to the Calamagrostis meadow today existing at the place of the profile . The Unalaska profile is peculiar , being completely dominated by a fern , Dryopteris sp . It is indicated that pollen analysis ...
... indicates a vegetation very similar to the Calamagrostis meadow today existing at the place of the profile . The Unalaska profile is peculiar , being completely dominated by a fern , Dryopteris sp . It is indicated that pollen analysis ...
Стр. 515
... indicates that " ' quartzose sandstone ' is a better term for these sedimentary rocks . Where de- sirable the nature of the cement can be indicated by the use of adjectives , such as silicinate and calcarinate ; this was proposed in ...
... indicates that " ' quartzose sandstone ' is a better term for these sedimentary rocks . Where de- sirable the nature of the cement can be indicated by the use of adjectives , such as silicinate and calcarinate ; this was proposed in ...
Стр. 630
... indicated that irradiation produces both electron and hole traps in silicon , since both N- and P - type materials become very poorly conducting ( resistivities as high as 250,000 ohm - cm have been reached in this way ) . Thus a result ...
... indicated that irradiation produces both electron and hole traps in silicon , since both N- and P - type materials become very poorly conducting ( resistivities as high as 250,000 ohm - cm have been reached in this way ) . Thus a result ...
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