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2.202 Aktuelle Fachpublikationen zum Thema temperature

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Microbial respiration with chlorine oxyanions: diversity and physiological and biochemical properties of chlorate‐ and perchlorate‐reducing microorganisms

23.06.2015 | Martin G. Liebensteiner, Margreet J. Oosterkamp, Alfons J.M. Stams, Annals of the New York Academy of Sciences, 2015

Chlorine oxyanions are valuable electron acceptors for microorganisms. Recent findings have shed light on the natural formation of chlorine oxyanions in the environment. These suggest a permanent introduction of respective compounds on Earth, long before their anthropogenic manufacture. ...

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Supramolecular structural evolutions of maize starch hydrothermally treated in excess water

19.06.2015 | Yanyan Zu, Binjia Zhang, Ling Chen, Fengwei Xie, Lin Li, Xiaoxi Li, Starch - Stärke, 2015

Supramolecular structural changes of maize starch as affected by hydrothermal treatment in excess water were investigated. At a temperature slightly higher than the onset (To) of gelatinization endotherm (G), an increase in the size of the cavity at the granule core and a sharp decrease in the ...

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Chromium Reaction Mechanisms for Speciation using Synchrotron in-Situ High-Temperature X-ray Diffraction

19.06.2015 | Fiona Low; Justin Kimpton; Siobhan A. Wilson; Lian Zhang, Environmental Science & Technology, 2015

We use in situ high-temperature X-ray diffraction (HT-XRD), ex-situ XRD and synchrotron X-ray absorption near edge structure spectroscopy (XANES) to derive fundamental insights into mechanisms of chromium oxidation during combustion of solid fuels. To mimic the real combustion environment, ...

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Pre‐flowering leaf removal alters grape microbial population and offers good potential for a more sustainable and cost‐effective management of a Pinot Noir vineyard

17.06.2015 | M. Sternad Lemut, P. Sivilotti, L. Butinar, J. Laganis, U. Vrhovsek, Australian Journal of Grape and Wine Research, 2015

Abstract Background and Aims The grapevine canopy microclimate, particularly temperature and relative humidity, is of crucial importance for predisposing grapes to lower or greater incidence of microbial infections. Because of global warming, the widely adopted leaf removal at veraison ...

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Biodiesel production using CaO/γ‐Al2O3 catalyst synthesized by sol‐gel method

17.06.2015 | Gholamreza R. Moradi, Majid Mohadesi, Raziye Rezaei, The Canadian Journal of Chemical Engineering, 2015

Abstract In this study, 40% CaO/γ‐Al2O3 catalyst was used for biodiesel production from corn oil. A transesterification reaction was done for 5 h at a temperature of 65 °C in the presence of corn oil, methanol (methanol to oil molar ratio of 12:1), and CaO/γ‐Al2O3 catalyst (0.06 g/g (6 wt%)). ...

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IJERPH, Vol. 12, Pages 6894-6918: Mineralization and Detoxification of the Carcinogenic Azo Dye Congo Red and Real Textile Effluent by a Polyurethane Foam Immobilized Microbial Consortium in an Upflow Column Bioreactor

16.06.2015 | Lade, Harshad ; Govindwar, Sanjay ; Paul, Diby, International Journal of Environmental Research and Public Health, 2015

A microbial consortium that is able to grow in wheat bran (WB) medium and decolorize the carcinogenic azo dye Congo red (CR) was developed. The microbial consortium was immobilized on polyurethane foam (PUF). Batch studies with the PUF-immobilized microbial consortium showed complete removal of ...

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Rigidity versus flexibility: the dilemma of understanding protein thermal stability

13.06.2015 | Andrey Karshikoff, Lennart Nilsson, Rudolf Ladenstein, FEBS Journal, 2015

Abstract The role of fluctuations in protein thermostability has recently received considerable attention. In the current literature a dualistic picture can be found: thermostability seems to be associated with enhanced rigidity of the protein scaffold in parallel with the reduction of ...

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Effect of peanut shell content on mechanical, thermal, and biodegradable properties of peanut shell/polylactic acid biocomposites

10.06.2015 | Chamaiporn Yamoum, Rathanawan Magaraphan, Polymer Composites, 2015

Peanut shell (PNS) was combined with polylactic acid (PLA) to form biocomposites. The biocomposites, with up to 40 wt% PNS, were prepared using a twin–screw extruder. The effect of PNS content on the thermal, mechanical, thermomechanical, morphological, and biodegradable properties was studied. ...

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Lithium Insertion into Li2MoO4: Reversible Formation of (Li3Mo)O4 with a Disordered Rock-Salt Structure

10.06.2015 | D. Mikhailova; A. Voss; S. Oswald; A. A. Tsirlin; M. Schmidt; A. Senyshyn; J. Eckert; H. Ehrenberg, Chemistry of Materials, 2015

During Li-insertion in some complex transition metal molybdates with a NASICON structure, which serve as cathodes in Li-ion rechargeable cells, a formation of a cubic rock-salt-type phase was often detected between 1 and 2 V vs Li+/Li. Detailed information about elemental composition and ...

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Characterization of an Fe≡N–NH2 Intermediate Relevant to Catalytic N2 Reduction to NH3

10.06.2015 | John S. Anderson; George E. Cutsail, III; Jonathan Rittle; Bridget A. Connor; William A. Gunderson; Limei Zhang; Bri ..., Journal of the American Chemical Society, 2015

The ability of certain transition metals to mediate the reduction of N2 to NH3 has attracted broad interest in the biological and inorganic chemistry communities. Early transition metals such as Mo and W readily bind N2 and mediate its protonation at one or more N atoms to furnish M(NxHy) species ...

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