Geologie: Recent submissions
Anzeige der Dokumente 501-525 von 933
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Differences in biomass yield development of early, medium, and late maize varieties during the 21st century in Northern Germany
(Environmental Sciences Europe, 2015) -
Dimensioning metallic iron beds for efficient contaminant removal
; Caré, S. (Chemical Engineering Journal, 2010)
Remediation of contaminated groundwater is an expensive and lengthy process. Permeable reactive barrier of metallic iron (Fe0 PRB) is one of the leading technologies for groundwater remediation. One of the primary challenges ... -
Microbialites and hydrochemistry of the crater lake of Satonda
Kempe, Stephan; Kazmierczak, Józef; Reimer, Andreas; Landmann, Guenter; (Globale und regionale Steuerungsfaktoren biogener Sedimentation, 1996)
The Satonda crater lake is up to now the only known "marine" lake with an increased alkalinity compared to seawater. Therefore, the lake contains a decreased amount of Ca2 +. Its pH values about 8.5-8.6. The lake was ... -
Taxonomische Bedeutung freier Skleren in Carpospongia globosa (Eichwald, 1830) und Aulocopium aurantium Oswald, 1850 (Demospongiae, "Lithistida") (Oberordovizium) aus dem Kaolinsand von Braderup/Sylt
; Kohring, Rolf (Fossilien von Sylt, Bd. 3, 1990)
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Comment on “Coupled acidification and ultrasound with iron enhances nitrate reduction” by Tsai et al. [J. Hazard. Mater. 163 (2009) 743]
(Journal of Hazardous Materials, 2009)
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Isolierte Mikro- und Megaskleren von Porifera aus dem Untercampan von Höver (Norddeutschland) und Bemerkungen zur Phylogenie der Geodiidae (Demospongiae)
Gruber, Gabriele; (Beiträge zur Paläontologie, 1991)
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A problematic microfossil from the Oligocene of Rott (Siebengebirge, Germany), with affinities to freshwater Bryozoan Statoblasts (Phylactolaemata)
Kohring, Rolf; (Beiträge zur Paläontologie, 1991)
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The Suitability of Pozzolan as Admixing Aggregate for Fe0-Based Filters
Ndé-Tchoupé, Arnaud; Makota, Suzanne; Nassi, Achille; Hu, Rui; (Water, 2018)
Continuous gravity-fed column experiments using the methylene blue (MB) discoloration method were performed to characterize the suitability of a pozzolan (PZ) specimen as alternative admixing aggregate for metallic iron ... -
Distribution and timing of Holocene and late Pleistocene glacier fluctuations in western Mongolia
; Klinge, Michael; Rother, Henrik; Hülle, Daniela (Annals of Glaciology, 2016)
Despite being a key location for paleoglaciological research in north-central Asia, with the largest number of modern and Pleistocene glaciers, and in the transition zone between the humid Russian Altai and dry Gobi ... -
Comparison of Random Forest, k-Nearest Neighbor, and Support Vector Machine Classifiers for Land Cover Classification Using Sentinel-2 Imagery.
(Sensors (Basel, Switzerland), 2017)In previous classification studies, three non-parametric classifiers, Random Forest (RF), k-Nearest Neighbor (kNN), and Support Vector Machine (SVM), were reported as the foremost classifiers at producing high accuracies. ... -
Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN
Soltwedel, Thomas; Bauerfeind, Eduard; Bergmann, Melanie;; Budaeva, Nataliya; Busch, Kathrin; Cherkasheva, Alexandra; ; Grzelak, Katarzyna; Hasemann, Christiane; Jacob, Marianne; Kraft, Angelina; Lalande, Catherine; Metfies, Katja; Nöthig, Eva-Maria; Meyer, Kirstin; Quéric, Nadia-Valérie; Schewe, Ingo; Włodarska-Kowalczuk, Maria; Klages, Michael (Ecological Indicators, 2016)
Time-series studies of arctic marine ecosystems are rare. This is not surprising since polar regions arelargely only accessible by means of expensive modern infrastructure and instrumentation. In 1999, theAlfred Wegener ... -
Organic molecular markers and signature from wood combustion particles in winter ambient aerosols: aerosol mass spectrometer (AMS) and high time-resolved GC-MS measurements in Augsburg, Germany
(Atmospheric Chemistry and Physics, 2012)The impact of wood combustion on ambient aerosols was investigated in Augsburg, Germany during a winter measurement campaign of a six-week period. Special attention was paid to the high time resolution observations ... -
Metallic iron for water treatment and environmental remediation: A handout to young researchers
Nkundimana, Emmanuel;; Uwamariya, Valentine (Fresenius Environmental Bulletin, 2015)
The premise of this research note is that current research on metallic iron (Fe0) for environmental remediation and water treatment has started on a biased basis. Before expecting experienced researchers to correct flawed ... -
Comments on “Sorption of triazoles to soil and iron minerals” by Y. Jia et al. [Chemosphere 67 (2007) 250-258].
(Chemosphere, 2007)
This letter suggests possible improvements on the discussion of the adsorptive removal of triazoles by iron minerals which are possible corrosion products of elemental iron materials (Fe0) in a recent article by Y. Jia and ... -
Metallic iron for safe drinking water worldwide
(Chemical Engineering Journal, 2010)
A new concept for household and large-scale safe drinking water production is presented. Raw water is successively filtered through a series of sand and iron filters. Sand filters mostly remove suspended particles (media ... -
Small scale controls of greenhouse gas release under elevated N deposition rates in a restoring peat bog in NW Germany
(Biogeosciences, 2008)In Central Europe, most bogs have a history of drainage and many of them are currently being restored. Success of restoration as well as greenhouse gas exchange of these bogs is influenced by environmental stress ... -
A review of air–ice chemical and physical interactions (AICI): liquids, quasi-liquids, and solids in snow
(Atmospheric Chemistry and Physics, 2014)Snow in the environment acts as a host to rich chemistry and provides a matrix for physical exchange of contaminants within the ecosystem. The goal of this review is to summarise the current state of knowledge of ... -
Stability assessment of sandstones from the St. Servatius Church in Quedlinburg (UNESCO’s World Heritage Site, Germany)
(Environmental Earth Sciences, 2010)The St. Servatius Church in Quedlinburg (UNESCO’s World Heritage Site, Germany) is characterised by long-standing stability problems and structural damages, which have been known over the last several centuries. The ... -
Localization of Methyl-Coenzyme M reductase as metabolic marker for diverse methanogenic Archaea.
(Archaea (Vancouver, B.C.), 2013)Methyl-Coenzyme M reductase (MCR) as key enzyme for methanogenesis as well as for anaerobic oxidation of methane represents an important metabolic marker for both processes in microbial biofilms. Here, the potential of ... -
Comments on “Reply to Comments on Comparison of reductive dechlorination of p-chlorophenol using Fe0 and nanosized Fe0”, by Wang & Cheng
(Journal of Hazardous Materials, 2007)
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Ancient Origin of the Modern Deep-Sea Fauna
Thuy, Ben; Gale, Andy S.; Kroh, Andreas; Kucera, Michal; Numberger-Thuy, Lea D.;; Stöhr, Sabine (PLoS ONE, 2012-10-10)
The origin and possible antiquity of the spectacularly diverse modern deep-sea fauna has been debated since the beginning of deep-sea research in the mid-nineteenth century. Recent hypotheses, based on biogeographic patterns ... -
A remote sensing based monitoring system for discrimination between climate and human-induced vegetation change in Central Asia
(Management of Environmental Quality: An International Journal, 2008)Purpose – This paper aims to demonstrate the importance of taking into account precipitation and the vegetation response to it when trying to analyse changes of vegetation cover in drylands with high inter-annual rainfall ... -
Deposition of biogenic iron minerals in a methane oxidizing microbial mat.
Wrede, Christoph; Kokoschka, Sebastian; Dreier, Anne; Heller, Christina;; Hoppert, Michael (Archaea (Vancouver, B.C.), 2013)
The syntrophic community between anaerobic methanotrophic archaea and sulfate reducing bacteria forms thick, black layers within multi-layered microbial mats in chimney-like carbonate concretions of methane seeps located ... -
Comment on "1,1,2,2-Tetrachloroethane reactions with OH-, Cr(II), granular iron, and a copper-iron bimetal: insights from product formation and associated carbon isotope fractionation".
(Environmental science & technology, 2007-11-15)
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Direct linking of Greenland and Antarctic ice cores at the Toba eruption (74 ka BP)
(Climate of the Past, 2013)The Toba eruption that occurred some 74 ka ago in Sumatra, Indonesia, is among the largest volcanic events on Earth over the last 2 million years. Tephra from this eruption has been spread over vast areas in Asia, where ...
