Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Heinz Fröschl"'
Autor:
Ronny Boch, Albrecht Leis, Edith Haslinger, Johann E. Goldbrunner, Florian Mittermayr, Heinz Fröschl, Dorothee Hippler, Martin Dietzel
Publikováno v:
Geothermal Energy, Vol 5, Iss 1, Pp 1-19 (2017)
Abstract Background Mineral precipitates (scaling) from deep saline thermal waters often constitute a major problem during geothermal energy production. The occurrence of scale-fragments accumulating and clogging pipes, filters, and heat exchangers i
Externí odkaz:
https://doaj.org/article/933699aa3cc84e299e96018f9f147cd1
Publikováno v:
Aquatic Geochemistry. 24:279-306
In this study, the release of elements and in particular U from five Austrian orthogneiss and granite samples into a CO2-bearing solution was investigated to describe the initial phase (24 h) of leaching focusing on the impact of ferrous (hydro)oxide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4b60a2497150fd9ebe818e0a4bc5218
https://doi.org/10.1007/s10498-018-9344-z
https://doi.org/10.1007/s10498-018-9344-z
Autor:
Dorothee Hippler, Heinz Fröschl, E. Haslinger, Johann Emmerich Goldbrunner, Albrecht Leis, Martin Dietzel, Florian Mittermayr, Ronny Boch
Publikováno v:
Geothermal Energy, Vol 5, Iss 1, Pp 1-19 (2017)
Background Mineral precipitates (scaling) from deep saline thermal waters often constitute a major problem during geothermal energy production. The occurrence of scale-fragments accumulating and clogging pipes, filters, and heat exchangers is of part
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efda492c6e9ed429eabf26410a39f150
https://doi.org/10.1186/s40517-017-0062-3
https://doi.org/10.1186/s40517-017-0062-3
Publikováno v:
Geostandards and Geoanalytical Research. 32:93-101
The recommended concentrations of 239Pu, 240Pu and 239+240Pu in reference material IAEA-315 (marine sediment) were estimated by three analytical methods: isotope dilution thermal ionisation mass spectrometry (TIMS), isotope dilution inductively coupl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0845bd7d7bb61947d85ec4f50a9ee0f
https://doi.org/10.1111/j.1751-908x.2008.00876.x
https://doi.org/10.1111/j.1751-908x.2008.00876.x
Autor:
Goran Durn, Nediljka Gaurina Med̄imurec, Heinz Fröschl, Boris Veronek, Sanja Mesić, Ivan Meandžija
Publikováno v:
Journal of Energy Resources Technology. 126:112-118
The aim of this study was to geochemically and mineralogically assess materials from two already closed pits. Total testing and leachate testing (Equilibrium Leach Test and Sequential Leach Test) of topsoil, waste stabilized with lime and underlying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99e821821fe160427fe7c41660048076
https://doi.org/10.1115/1.1715102
https://doi.org/10.1115/1.1715102
Publikováno v:
Analytica Chimica Acta. 436:79-85
An anion exchange procedure has been optimized for the analysis of platinum group elements (PGEs) in geological samples at low abundances by adding two stages: chlorination and replicate sorption onto a small anion exchange column. Combined with neut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c512774c68ef74da973e1b1727d819f8
https://doi.org/10.1016/s0003-2670(01)00902-3
https://doi.org/10.1016/s0003-2670(01)00902-3
Autor:
Janice L. Bishop, Christian Koeberl, David W. Andersen, Claudia Kralik, Robert A. Wharton, Peter A.J. Enolert, Heinz Fröschl, Carle M. Pieters
Publikováno v:
Geochimica et Cosmochimica Acta. 60:765-785
Visible to infrared reflectance spectroscopic analyses (0.3-25 micromoles) have been performed on sediments from the Dry Valleys region of Antarctica. Sample characterization for these sediments includes extensive geochemical analyses and X-ray diffr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c05fac3f6974a37b8a568ee3d891bd6
https://doi.org/10.1016/0016-7037(95)00432-7
https://doi.org/10.1016/0016-7037(95)00432-7
Autor:
John A. Veil, Goran Durn, Boris Veronek, Sanja Mesić, Nediljka Gaurina-Međimurec, Heinz Fröschl
Exploration and production (E&P) waste generated by the petroleum industry in Croatia from two central oilfield pits (COPs) was investigated in order to (1) examine materials for waste treatment that can preferentially sorb organic contaminants and,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57981a7edc21258adc44b1142e5a0433
https://doi.org/10.1115/1.2906112
https://doi.org/10.1115/1.2906112
Publikováno v:
Journal of geophysical research. 103(E13)
Determining the mineralogy of the Martian surface material provides information about the past and present environments on Mars which are an integral aspect of whether or not Mars was suitable for the origin of life. Mineral identification on Mars wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::396cf6a3e62bd182a3c3160d7b472822
https://pubmed.ncbi.nlm.nih.gov/11542259
https://pubmed.ncbi.nlm.nih.gov/11542259
Autor:
Rocco L. Mancinelli, Roger G. Burns, John O. Edwards, Heinz Fröschl, Janice L. Bishop, Carle M. Pieters
Publikováno v:
Icarus. 117(1)
Spectroscopic analyses have shown that smectites enhanced in the laboratory with additional ferric species exhibit important similarities to those of the soils on Mars. Ferrihydrite in these chemically treated smectites has features in the visible to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::908261288d680a3548d56ab907300fbb
https://pubmed.ncbi.nlm.nih.gov/11538594
https://pubmed.ncbi.nlm.nih.gov/11538594