Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Jens K. Gundersen"'
Autor:
Lars Hauer Larsen, Bo Thamdrup, Tage Dalsgaard, Osvaldo Ulloa, Jens K. Gundersen, Niels Peter Revsbech
Publikováno v:
Limnology and Oceanography: Methods. 7:371-381
The methods used until now have not been able to reliably resolve O2 concentrations in oceanic oxygen minimum zones below 1–2 µmol L−1. We present a new amperometric sensor for the determination of ultra-low O2 concentrations under in situ condi
Autor:
Jørgen Berntsen, Jens K. Gundersen, Joseph Hill, L.A. Scott, Niels B. Ramsing, Darlene Davies
Publikováno v:
Reproductive BioMedicine Online. 17:461-469
Oocyte and embryo selection are not highly successful, with fewer than 10% of oocytes in assisted reproduction resulting in a delivery. Techniques for oocyte and embryo selection rely on highly subjective morphology assessment, with few true quantita
Publikováno v:
Limnology and Oceanography. 48:1265-1276
The benthic O2 uptake and the O2 microdistribution in a coastal sediment of Aarhus Bay, Denmark, were investigated during a seasonal study. Measurements were performed in situ by a profiling lander and a flux chamber lander, as well as on recovered s
Autor:
Mariska Wubben, Lars Ditlev Mørck Ottosen, Eveline Volcke, Markus Schmid, Michael Wagner, Marc Strous, Mike S. M. Jetten, Annette Bollmann, J. Gijs Kuenen, Olav Sliekers, John A. Fuerst, Jens K. Gundersen, Lars Peter Nielsen, Jan Willem Mulder, Hubertus J. E. Beaumont, Rob J.M. van Spanning, Katie Third, Huub J. M. Op den Camp, David J. Richardson, Ingo Schmidt, Peter A. Vanrolleghem, Carl Schultz, Wiebe Abma, Katinka van de Pas, Udo van Dongen, Jose Luis Campos-Gomez, Irina Cirpus, Ramón Méndez-Pampín, Jeffrey A. Cole, Hendrikus J. Laanbroek, Niels Peter Revsbech, Mark C.M. van Loosdrecht
Publikováno v:
Aarhus University
Jetten, M S M, Schmid, M, Schmidt, I, Wubben, M, van Dongen, U, Abma, W, Sliekers, O, Revsbech, N P, Beuamont, H J E, Ottosen, L, Volcke, E, Laanbroek, H J, Campos-Gomez, J L, Cole, J, van Loosdrecht, M, Mulder, J W, Fuerst, J, Richardsen, D, van de Pas, K, Mendez-Pampin, R, Thrid, K, Cirpus, I, van Spanning, R, Bollmann, A, Nielsen, L P, Op den Camp, H, Schultz, C, Gundersen, J, Vanrolleghem, P, Strous, M, Wagner, M & Gijs Kuenen, J 2002, ' Improved nitrogen removal by application of new nitrogen-cycle bacteria ', Environmental Science & Biotechnology, vol. 1, pp. 51-63 .
Re/Views in Environmental Science and Bio/Technology, 1, 51. Kluwer
Reviews in Environmental Science and Biotechnology, 1, 51-63. Springer Netherlands
Jetten, M S M, Schmid, M, Schmidt, I, Wubben, M, van Dongen, U, Abma, W, Sliekers, O, Revsbech, N P, Beuamont, H J E, Ottosen, L, Volcke, E, Laanbroek, H J, Campos-Gomez, J L, Cole, J, van Loosdrecht, M, Mulder, J W, Fuerst, J, Richardsen, D, van de Pas, K, Mendez-Pampin, R, Thrid, K, Cirpus, I, van Spanning, R, Bollmann, A, Nielsen, L P, Op den Camp, H, Schultz, C, Gundersen, J, Vanrolleghem, P, Strous, M, Wagner, M & Gijs Kuenen, J 2002, ' Improved nitrogen removal by application of new nitrogen-cycle bacteria ', Environmental Science & Biotechnology, vol. 1, pp. 51-63 .
Re/Views in Environmental Science and Bio/Technology, 1, 51. Kluwer
Reviews in Environmental Science and Biotechnology, 1, 51-63. Springer Netherlands
In order to meet increasingly stringent European discharge standards, new applications and control strategies for the sustainable removal of ammonia from wastewater have to be implemented. In this paper we discuss a nitrogen removal system based on t
Publikováno v:
Estuarine, Coastal and Shelf Science. 49:813-827
Laboratory and in situ experiments were performed to assess the use of bromide as a tracer forin situ studies of benthic solute exchange. Bromide was used in the benthic chamber lander ‘ Elinor ’ for flux measurements in coastal sediments of the
Autor:
Ingo Klimant, Jens K. Gundersen, Oliver Kohls, Gerhard A. Holst, Ronnie N. Glud, Michael Kühl, Volker Meyer
Publikováno v:
Deep Sea Research Part I: Oceanographic Research Papers. 46:171-183
Oxygen microopt(r)odes have recently been introduced as an alternative to microelectrodes in the field of aquatic biology. We here describe adaptation, test results and first in situ measurements made with O2 microopt(r)odes on deep-sea benthic lande
Publikováno v:
Limnology and Oceanography. 43:1932-1937
The signal of Clark-type oxygen sensors is controlled not only by the oxygen concentration but also by sensor dimensions, temperature, and salinity. We have developed a mathematical model that predicts the O2 microsensor signal as a function of these
Publikováno v:
Greff, O, Glud, R N, Gundersen, J, Holby, O & Jørgensen, B B 1998, ' A Benthic Lander for Tracer Studies in the Sea Bed-in situ Measurements of Sulfate Reduction ' Continental Shelf Research, vol. 18, pp. 1581-1594 .
A new benhic lander for in situ tracer studies to a water depth of 6000 m is presented. This instrument allows in situ injections of radiolabeled sulfate into six enclosed sediment cores to determine sulfate reduction rates to 60 cm sediment depth. I
Publikováno v:
Geochimica et Cosmochimica Acta. 62:767-781
Due to a low mineral content, the sapropelic sediments depositing in Mangrove Lake, Bermuda, provide an excellent opportunity to explore for possible additions of sulfur to organic matter during the early stages of diagenesis. We evaluated early diag
Autor:
Jens K. Gundersen, Ronnie N. Glud, Matthias Zabel, Horst D Schulz, Holger Landenberger, Christian Hensen
Publikováno v:
Marine Geology. 144:191-210
Pore water of marine sediments recovered from two stations of the continental slope off southwest Africa were investigated. We present computer simulations of in situ and laboratory concentration profiles of oxygen as well as laboratory concentration