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2.334 Aktuelle Fachpublikationen zum Thema temperature

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Catalytic etching of monolayer graphene at low temperature via carbon oxidation

28.07.2015 | Jun Eun Jin; Jae-Hyun Lee; Jun Hee Choi; Ho-Kyun Jang; Junhong Na; Dongmok Whang; Do-Hyun Kim; Gyu Tae Kim, Physical Chemistry Chemical Physics, 2015

In this work, an easy method to etch monolayer graphene is shown by using catalytic oxidation in the presence of ZnO nanoparticles (NPs). The catalytic etching of monolayer graphene, which was transferred to the channel of field-effect transistors (FETs), was performed at low temperature by ...

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“Electrospinning deposition of hydrogel fibers used as scaffold for biomembranes. Thermal stability of DPPC corroborated by ellipsometry”.

26.07.2015 | Author(s): C.M. González-Henríquez, M.A. Sarabia-Vallejos, Chemistry and Physics of Lipids, 2015

Publication date: Available online 20 July 2015 Source:Chemistry and Physics of Lipids Author(s): C.M. González-Henríquez, M.A. Sarabia-Vallejos DPPC bilayers were deposited over thin hydrogel scaffolds using the Langmuir-Blodgett technique (with DPPC thickness ∼6.2nm). Wrinkled ...

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A convection–diffusion porous media model for moisture transport in polymer composites: Model development and validation

24.07.2015 | Liangbiao Chen, Hsing‐Wei Chu, Xuejun Fan, Journal of Polymer Science Part B: Polymer Physics, 2015

ABSTRACT Moisture may cause many detrimental effects to polymers and their composites, thus inhibiting the applications of polymeric materials in hot and humid environments. In this article, a convection–diffusion porous media model is derived to better characterize rapid moisture transport in ...

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Extraction of polymer stress–strain behavior in the presence of self‐heating by the use of a simple model for the elastic–plastic deformation

24.07.2015 | Chrystelle A Bernard, Christophe Fond, Saïd Ahzi, Nadia Bahlouli, Polymer Engineering and Science, 2015

Polymer materials are well known to be sensitive to strain rate and temperature. Self‐heating and friction effects also play an important role in the mechanical response of these materials. Numerous constitutive laws and phenomenological models have been developed to take into account these ...

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A new NMR approach for structure determination of thermally unstable biflavanones and application to phytochemicals from Garcinia buchananii

20.07.2015 | Timo D. Stark, Sofie Lösch, Mathias Salger, Onesmo B. Balemba, Junichiro Wakamatsu, Oliver Frank, Thomas Hofmann, Magnetic Resonance in Chemistry, 2015

Abstract Previous activity‐guided phytochemical studies on Garcinia buchananii stem bark, which is traditionally used in Africa to treat various gastrointestinal and metabolic illnesses, revealed xanthones, polyisoprenylated benzophenones, flavanone‐C‐glycosides, biflavonoids, and/or ...

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Dependence of heating rates of thermal activation on thermal activation characteristics of 110°C TL peak of quartz: A simulation approach

20.07.2015 | Author(s): Ebenezer O. Oniya, Radiation Physics and Chemistry, 2015

Publication date: October 2015 Source:Radiation Physics and Chemistry, Volume 115 Author(s): Ebenezer O. Oniya This work was undertaken to investigate heating rates effect of thermal activation on the thermal activation characteristic (TAC) by a way of numerical simulation of an existing ...

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Effect of temperature on the dissolution and thermal alteration of combined amino acids fixed in natural sediment under simulated hydrothermal conditions

20.07.2015 | Author(s): Shigeshi Fuchida, Harue Masuda, Organic Geochemistry, 2015

Publication date: Available online 17 July 2015 Source:Organic Geochemistry Author(s): Shigeshi Fuchida, Harue Masuda Seafloor sediment containing biogenic amino acids was heated with NaCl solutions at 50–200 °C for 240 h to investigate the dissolution process of amino acids and ...

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π‐Excess σ2P=C–N–Heterocycles: Catalytic P‐Arylation and Alkylation of N‐Alkyl‐1,3‐benzazaphospholes and Isolation of P,N‐Disubstituted Dihydrobenzaza­phosphole P‐Oxides

17.07.2015 | Basit Niaz, Bhaskar R. Aluri, Peter G. Jones, Joachim W. Heinicke, European Journal of Inorganic Chemistry, 2015

Abstract 2‐Unsubstituted N‐alkyl‐1,3‐benzazaphospholes, diagonally P–C related to 2,3‐unsubstituted indoles, were successfully arylated by aryl iodides and bromides or alkylated by neopentyl iodide by heating in DMF in the presence of a catalytic amount of PdCl2 or H2PtCl6 and a suitable base. ...

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Packed-Bed Torrefaction of Bagasse under Inert and Oxygenated Atmospheres

16.07.2015 | Yash Joshi; Manuela Di Marcello; Easwaran Krishnamurthy; Wiebren de Jong, Energy & Fuels, 2015

Biomass torrefaction in gas atmospheres containing oxygen, such as hot flue gases or air, is an interesting concept with potentially positive implications with respect to processing costs and efficiency. This study aimed to investigate the effects of varying concentrations of oxygen in the ...

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Hierarchical, Ultrathin Single-Crystal Nanowires of CdS Conveniently Produced in Laser-Induced Thermal Field

16.07.2015 | Li-Li Han; Huolin L. Xin; Sergei A. Kulinich; Li-Jun Yang; Xi-Wen Du, Langmuir, 2015

Hierarchical nanowires (HNWs) exhibit unique properties and have wide applications, while often suffering from imperfect structure. Herein, we report a facile strategy toward ultrathin CdS HNWs with monocrystal structure, where a continuous-wave (CW) Nd:YAG laser is employed to irradiate an oleic ...

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