ZIB

Treffer pro Seite

Treffer 1 - 2 | 2 Treffer

Sortierung

Digitale Medien

Comparison of pulsed and continuous operation of the Cu II laser (1987)

Hamisch, J. ; Macdonald, R.

Springer

Applied physics 43 (1987), S. 183-187

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1432-0649

Schlagwort(e): 42.55.Hq

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract The peak output power of Cu II laser emission in the uv at 260 nm and in the ir at 780 nm was measured for different operating conditions in the pulsed and the cw mode. In contrast to the ir laser output the laser power in the uv is higher in the cw mode than in the quasi cw mode. This property depends on contaminations of the discharge gas.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00695621

Permalink

Bibliothek	Standort	Signatur	Band/Heft/Jahr	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

Digitale Medien

Extraction of nitrogen from soils (1989)

Wheatley, R. E. ; MacDonald, R. ; Smith, Angela M.

Springer

Biology and fertility of soils 8 (1989), S. 189-190

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1432-0789

Schlagwort(e): Nitrogen ; Ammonium ; Nitrate ; Nitrogen extraction ; Soils ; Nitrogen mineralization

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Geologie und Paläontologie , Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft

Notizen: Summary A roller bed and rotary end-over-end shaker were compared for the extraction of mineral N from a variety of soil types; both were equally efficient with an optimum extraction time of 30 min. However, the roller bed permitted a greater operational capacity, a faster throughput of samples, and easier identification of sample bottles compared with the end-over-end shaker. More NH4 +-N and NO3 −-N (P〈0.001) was recovered from soil by 2 M KCl than by any other extractant, in a soil: extractant ratio of 1 to 5 (w:v), except water, which was equally efficient at removing NO3 −-N from soils.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00257765

Permalink

Bibliothek	Standort	Signatur	Band/Heft/Jahr	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

Treffer 1 - 2 | 2 Treffer