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  • 1
    Keywords: Soil science. ; Environmental chemistry. ; Environment. ; Soil Science. ; Environmental Chemistry. ; Environmental Sciences.
    Description / Table of Contents: Arsenic hyperaccumulator Pteris Vittata L. and its arsenic accumulation -- Arsenic hyperaccumulation mechanisms: absorption, transportation and detoxification -- Establishment of phytoremediation technology for arsenic contaminated sites -- Application of phytoremediation technology to typical mining sites in China -- Enhancement of arsenic removal in phytoremediation of arsenic contaminated soils.
    Abstract: This book introduces readers to the main theories of phytoremediation and its application to arsenic-contaminated soils in China. The hyperaccumulation theories are introduced, including the use of hyperaccumulators to remove large amounts of arsenic without producing toxic symptoms. The use of synchrotron-based X-ray absorption fine structure radiation to disclose the hyperaccumulation mechanism – a method that makes it possible to detect the elements in plant tissues without destroying the sample – is introduced in detail. This book also includes practical application cases of phytoremediation, which are rarely found in the literature. Allowing readers to gain a thorough understanding of phytoremediation technology, and demonstrating its efficiency in cleaning arsenic-contaminated soils, the book offers a valuable asset for graduate students, lecturers, researchers and engineers in the field of soil remediation. .
    Type of Medium: Online Resource
    Pages: VI, 82 p. 58 illus., 30 illus. in color. , online resource.
    Edition: 1st ed. 2020.
    ISBN: 9789811578205
    Series Statement: SpringerBriefs in Environmental Science,
    DDC: 631.4
    Language: English
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  • 2
    Call number: S 99.0139(161)
    In: Wissenschaftliche Arbeiten der Fachrichtung Vermessungswesen der Universität Hannover
    Type of Medium: Series available for loan
    Pages: III, 122 S.
    Series Statement: Wissenschaftliche Arbeiten der Fachrichtung Vermessungswesen der Universität Hannover 161
    Language: German
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 3
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    Unknown
    PANGAEA
    In:  Supplement to: Yang, Jun; Ding, Feng; Ramirez, Ramses M; Peltier, W R; Hu, Yongyun; Liu, Yonggang (2017): Abrupt climate transition of icy worlds from snowball to moist or runaway greenhouse. Nature Geoscience, 10(8), 556-560, https://doi.org/10.1038/ngeo2994
    Publication Date: 2023-01-13
    Description: Ongoing and future space missions aim to identify potentially habitable planets in our Solar System and beyond. Planetary habitability is determined not only by a planet's current stellar insolation and atmospheric properties, but also by the evolutionary history of its climate. It has been suggested that icy planets and moons become habitable after their initial ice shield melts as their host stars brighten. Here we show from global climate model simulations that a habitable state is not achieved in the climatic evolution of those icy planets and moons that possess an inactive carbonate-silicate cycle and low concentrations of greenhouse gases. Examples for such planetary bodies are the icy moons Europa and Enceladus, and certain icy exoplanets orbiting G and F stars. We find that the stellar fluxes that are required to overcome a planet's initial snowball state are so large that they lead to significant water loss and preclude a habitable planet. Specifically, they exceed the moist greenhouse limit, at which water vapour accumulates at high altitudes where it can readily escape, or the runaway greenhouse limit, at which the strength of the greenhouse increases until the oceans boil away. We suggest that some icy planetary bodies may transit directly to a moist or runaway greenhouse without passing through a habitable Earth-like state.
    Keywords: File content; File format; File name; File size; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 420 data points
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  • 4
    facet.materialart.
    Unknown
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Publication Date: 2017-06-14
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: text/plain
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 108 (1986), S. 2157-2161 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Annalen 304 (1996), S. 157-201 
    ISSN: 1432-1807
    Keywords:
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 2027-2029 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this article, the spinel NiCo2O4 nanosheets with diameters of 100-200 nm were prepared bycalcinations of co-precipitates, which were obtained by co-precipitation method. Different kinds ofprecipitants, including NaOH, KOH, Na2CO3 and ethanedioic acid aqueous solutions were investigated,and regular hexagonal nanosheets are synthesized only when the precipitant is strong KOH or NaOHsolution. The morphology and structure of the hexagonal precursor particles and nanosheets wereinvestigated, and the mechanism of the formation of hexagonal nanosheets is discussed
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 2478-2480 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The effects of rare earth oxides (Lu2O3 and La2O3) on the property, microstructure andoxidation behavior of hot-pressing sintered Si3N4 ceramics were investigated. The silicon nitrideceramics with Lu2O3 and La2O3 as addition have been fabricated by hot-pressed at 1800ºC for 1h under apressure of 25MPa. Oxidation test was carried out at 1400ºC in air for 100 hours. Mechanical properties,SEM and XRD were measured before and after oxidation. The results showed that Si3N4 ceramics dopedLu2O3 had good microstructure and mechanical properties than those doped La2O3. Oxidation test showeda parabolic weight gain with oxidation time at 1400ºC in air and the oxidation products of the ceramicswere SiO2, Re2Si2O7 and Re2SiO5 confirmed by XRD and EDS. The rate-controlling step was thediffusion of ion. The samples doped Lu2O3 showed superior oxidation resistance to those doped La2O3
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 909-912 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This paper shows preliminary results for polymer nanocomposites consisting of“hairy” silica particles with grafted polystyrene in polystyrene matrices of controlledmolecular weight and polydispersity. The goal of the work is to tailor the degree of wetting /interaction between the particles and polymer by controlling the graft density and molecularweight of the grafted polymer. This is providing an opportunity to study the properties of theinterface region and to control the bulk composite properties. We have found that thepredictions for flat brushes are qualitatively, but not quantitatively, applicable and that thehighly curved surfaces of nanoparticles present several challenges for the design ofnanoparticle interfaces. The talk will present more complete results in this system andprovide an overview of other work in our group using tailored interfaces to controlnanocomposite properties
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 569 (Jan. 2008), p. 197-200 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Copper is a well-known alloying element which is used to improve the resistance togeneral corrosion of stainless steels. Our previous experiments show that the increase of coppercontent can acquire the excellent antibacterial properties and can also increase the tendency to coldformability of the ferritic stainless steels. However, the effect of alloying Cu on the resistance tolocalized corrosion has not been clarified sufficiently. In order to understand the effect of copper onpitting corrosion resistance of the ferritic antibacterial stainless steel, the electrochemicalexperiments were carried out and the anodic polarization curves were performed in 3.5% NaClsolution for two kinds of steels. The results reveal that the ε-Cu phase in ferrite matrix diminishespitting corrosion resistance of the antibacterial stainless steel in the chlorides medium. It is connectedwith the poor passive behavior of the ε-Cu phase inclusions
    Type of Medium: Electronic Resource
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