Zobrazeno 1 - 10
of 15
pro vyhledávání: '"ANDREAS SIGG"'
Publikováno v:
Tellus B; Vol 43, No 2 (1991)
Air in the bubbles of polar ice has in principal the same composition as the atmospheric air at the time of ice formation. Based on this relationship, an increase in atmospheric CO2 since the beginning of industrialisation has been documented (Neftel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9007204102d4353ac55298db0947130b
http://www.tellusb.net/index.php/tellusb/article/view/15251
http://www.tellusb.net/index.php/tellusb/article/view/15251
Publikováno v:
Environmental sciencetechnology. 28(2)
A continuous melting technique, combined with continuous flow analysis, has been developed for in situ measurements of chemical trace species in ice cores. A crosssection of 1.8×1.8 cm 2 of the core is needed for the simultaneous analysis of at leas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::915a699884df6f36de3197da5c04400a
https://pubmed.ncbi.nlm.nih.gov/22176163
https://pubmed.ncbi.nlm.nih.gov/22176163
Publikováno v:
Archives of orthopaedic and trauma surgery. 131(3)
The identification of a calcific deposit in the rotator cuff can often cause difficulties. A new technique is described to identify the calcific deposit perioperatively with a ultrasound-guided wire. The technique allows a safe direct marking of calc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca56b617e21baa8185ac75bebec1467c
https://pubmed.ncbi.nlm.nih.gov/20848115
https://pubmed.ncbi.nlm.nih.gov/20848115
Publikováno v:
Analytica Chimica Acta. 260:57-64
Gaseous hydrogen peroxide was collectd continuously with a high efficiency Nafion mambrane diffusion scrubber. An ammoniacal solution of a peroxidase-like catalyst, hematin, was pumped through a porous hydrophob membrane reactor that allowed the intr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70476e49d0b4901511579a2df6cd24e8
https://doi.org/10.1016/0003-2670(92)80126-r
https://doi.org/10.1016/0003-2670(92)80126-r
Autor:
Albrecht Neftel, Andreas Sigg
Publikováno v:
Nature. 351:557-559
HYDROGEN peroxide has attracted increasing attention from atmospheric chemists over the past decade, because in the gas phase it acts as a reservoir species of OH radicals1,2, and in the aqueous phase it plays a key role in the oxidation of SO2 to H2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eeac8c065ce64e4957402adceaad136
https://doi.org/10.1038/351557a0
https://doi.org/10.1038/351557a0
Autor:
W. Wötfli, Juerg Beer, A. Blinov, T. Staffelbach, G. Bonani, Hans Oeschger, B. Lehmann, Robert C. Finkel, Jakob Schwander, M. Suter, Andreas Sigg, Bernhard Stauffer, Hansjakob Hofmann
Publikováno v:
Nature. 347:164-166
A DETAILED knowledge of the history of solar magnetic activity is important in several respects. From satellite data there is increasing evidence that solar magnetic activity and solar irradiance are positively correlated, a conclusion with important
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b74360cd8d7e703d3678318a253f8c93
https://doi.org/10.1038/347164a0
https://doi.org/10.1038/347164a0
Publikováno v:
Conklin, Martha H.; Sigg, Andreas; Neftel, Albrecht; Bales, Roger C. (1993). Atmosphere-snow transfer function for H2O2: microphysical considerations. Journal of Geophysical Research: Atmospheres, 98(D10), pp. 18367-18376. American Geophysical Union 10.1029/93JD01194
H2O2 analyses of polar ice cores show an increase in concentration from 200 years to the present. In order to quantitatively relate the observed trend in the ice to atmospheric levels, the atmosphere-snow transfer behavior and postdepositional change
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f61d3e5f6a387beec78312bae7f7117e
Publikováno v:
Journal of Geophysical Research. 100:8953
As part of the POLLUMET (Pollution and Meteorology in Switzerland) study, measurements of O3, NO2, and H2O2 were made at ground stations, by aircraft, and manned hydrogen balloons to characterize the photochemical processes prevailing during times of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bb77993f74a567126ea29650f6c4607
https://doi.org/10.1029/94jd03124
https://doi.org/10.1029/94jd03124
Publikováno v:
Tellus B: Chemical and Physical Meteorology. 43:91
Air in the bubbles of polar ice has in principal the same composition as the atmospheric air at the time of ice formation. Based on this relationship, an increase in atmospheric CO 2 since the beginning of industrialisation has been documented (Nefte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56e939db8335fff6143575816eadce3e
https://doi.org/10.3402/tellusb.v43i2.15251
https://doi.org/10.3402/tellusb.v43i2.15251
Publikováno v:
Studia Geophysica et Geodaetica. 31:1-7
Phase velocities of Rayleigh and Love waves have been measured between the broadband seismic stations KHC (Kasperske Hory, South Bohemia) and KSP (Ksiąz, Lower Silesia), a profile that nearly coincides with the Interactional DSS Profile VII. The dat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::544d1108f8002ff5e73e39210ed7fbf8
https://doi.org/10.1007/bf01631100
https://doi.org/10.1007/bf01631100