Zobrazeno 1 - 10
of 15
pro vyhledávání: '"John W. Howell"'
Publikováno v:
Journal of Applied Aquaculture. 24:299-315
Rainbow trout from private culture facilities were stocked into Bluestone River, West Virginia, to evaluate biological feasibility of stocking to enhance local angling opportunities. Between fall 2007 and spring 2009, over 2,400 fish were stocked. A
Publikováno v:
Journal American Society of Mining and Reclamation. 2004:822-846
Valley fill mining has the potential to alter headwater stream habitat in many areas in the eastern United States. In valley fill mining, overburden is removed to expose underlying coal seams. The overburden is then deposited in the adjacent valley.
Autor:
John W. Howell
Publikováno v:
Proceedings of the IEEE. 86:583-594
Autor:
John W. Howell
Publikováno v:
Transactions of the American Institute of Electrical Engineers. :927-938
The first commerical metal-filament lamp was the osmium lamp, the filaments of which were made of osmium. They had a good commercial life at 1.5 watts per c-p., and were used in considerable quantity in Vienna and Berlin where they were made. They we
Autor:
Henry Schroeder, John W. Howell
Publikováno v:
Journal of the American Institute of Electrical Engineers. 42:809-814
The new specifications for incandecent lamps determine their quality in terms of life to burnout at a specified mean efficiency. Formerly it was measured by the life to 80 per cent. of initial value. The new tests, therefore, conform more nearly to t
Autor:
John W. Howell
Publikováno v:
Transactions of the American Institute of Electrical Engineers. :839-847
I have the pleasure of presenting to you some data on a new carbon filament, which has characteristics so differing from those of any previously known filament as to seem to indicate that it is a new form of carbon. Beside being very interesting on a
Autor:
John W. Howell
Publikováno v:
Transactions of the American Institute of Electrical Engineers. :453-462
n/a
Autor:
John W. Howell
Publikováno v:
Transactions of the American Institute of Electrical Engineers. :42-51
Publikováno v:
Transactions of the American Society of Civil Engineers. 18:172-178
Autor:
John W. Howell
Publikováno v:
Transactions of the American Institute of Electrical Engineers. :47-49
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