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5.377 Aktuelle Fachpublikationen zum Thema temperature

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Syntheses, spectral characterization, thermal properties and DNA cleavage studies of a series of Co(II), Ni(II) and Cu(II) polypyridine complexes with some new imidazole derivatives of 1,10-phenanthroline

24.05.2015 | Author(s): Shaikh Kabeer Ahmed , Shaikh Khaled, Arabian Journal of Chemistry, 2015

Publication date: Available online 6 May 2015 Source:Arabian Journal of Chemistry Author(s): Shaikh Kabeer Ahmed , Shaikh Khaled In the present study three new imidazole derivatives of phen, 2-(4-hydroxy-3,5-diiodophenyl) imidazo[4,5-f][1,10]phenanthroline L1, ...

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Effect of water-based sol gel method on structural, thermal and conductivity properties of LiNO3–Al2O3 composite solid electrolytes

24.05.2015 | Author(s): M. Sulaiman , A.A. Rahman , N.S. Mohamed, Arabian Journal of Chemistry, 2015

Publication date: Available online 4 May 2015 Source:Arabian Journal of Chemistry Author(s): M. Sulaiman , A.A. Rahman , N.S. Mohamed Composite solid electrolytes in the system (1−x)LiNO3–xAl2O3, with x =0.0–0.5 were prepared by sol gel method. No organic solvents but water was used as ...

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Synthesis of High‐performance BaMgAl10O17:Eu2+ Phosphor Through a Facile Aqua‐suspension Method

23.05.2015 | Qiang Qiang Zhu, Xin Xu, Lu Yuan Hao, International Journal of Applied Ceramic Technology, 2015

High‐performance BaMgAl10O17:Eu2+ (BAM) phosphor was prepared by a facile aqua‐suspension method, based on the insitu surface charge modification of starting powders with the aid of the γ‐Al2O3 porous structure. When stirred in de‐ionized water at 80°C, the starting powders of BaCO3, MgO, and ...

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Preparation and characterization of a composite nanofiltration membrane from cyclen and trimesoyl chloride prepared by interfacial polymerization

22.05.2015 | Gui‐E. Chen, Yan‐Jun Liu, Zhen‐Liang Xu, Deng Hu, Hui‐Hong Huang, Li Sun, Journal of Applied Polymer Science, 2015

ABSTRACT A novel nanofiltration (NF) membrane was prepared with cyclen and trimesoyl chloride by interfacial polymerization on a poly(ether sulfone) ultrafiltration membrane with a molecular weight cutoff of 50,000 Da. The effects of the reaction time, monomer concentration, and heat‐treatment ...

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Interfacial tension and contact angle measurements for the evaluation of CO2‐brine two‐phase flow characteristics in porous media

22.05.2015 | Yu Liu, Meiheriayi Mutailipu, Lanlan Jiang, Jiafei Zhao, Yongchen Song, Lingyu Chen, Environmental Progress, 2015

It is of great importance to investigate gas and water flow characteristics to better understand the geological CO2 sequestration process. The interfacial tension between CO2 and brine and the wettability of reservoir rocks are the most important parameters for two‐phase flow in porous media ...

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Hydrous Mineral Dehydration Around Heat-Generating Nuclear Waste in Bedded Salt Formations

22.05.2015 | Amy B. Jordan; Hakim Boukhalfa; Florie A. Caporuscio; Bruce A. Robinson; Philip H. Stauffer, Environmental Science & Technology, 2015

Heat-generating nuclear waste disposal in bedded salt during the first two years after waste emplacement is explored using numerical simulations tied to experiments of hydrous mineral dehydration. Heating impure salt samples to temperatures of 265 °C can release over 20% by mass of hydrous ...

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Rehydration of Thermoresponsive Poly(monomethoxydiethylene glycol acrylate) Films Probed in Situ by Real-Time Neutron Reflectivity

22.05.2015 | Qi Zhong; Ezzeldin Metwalli; Monika Rawolle; Gunar Kaune; Achille M. Bivigou-Koumba; André Laschewsky; Christine M. ..., Macromolecules, 2015

The rehydration of thermoresponsive poly(monomethoxydiethylene glycol acrylate) (PMDEGA) films exhibiting a lower critical solution temperature (LCST) type demixing phase transition in aqueous environments, induced by a decrease in temperature, is investigated in situ with real-time neutron ...

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IJMS, Vol. 16, Pages 11766-11784: Supramolecular Phase-Selective Gelation by Peptides Bearing Side-Chain Azobenzenes: Effect of Ultrasound and Potential for Dye Removal and Oil Spill Remediation

22.05.2015 | Bachl, Jürgen ; Oehm, Stefan ; Mayr, Judith ; Cativiela, Carlos ; Marrero-Tellado, José Juan; Díaz, David Díaz, International Journal of Molecular Sciences, 2015

Phase selective gelation (PSG) of organic phases from their non-miscible mixtures with water was achieved using tetrapeptides bearing a side-chain azobenzene moiety. The presence of the chromophore allowed PSG at the same concentration as the minimum gelation concentration (MGC) necessary to ...

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Low-Temperature Corrosion in Biomass Boilers Fired with Chemically Untreated Wood Chips and Bark

22.05.2015 | Stefan Retschitzegger; Thomas Brunner; Ingwald Obernberger, Energy & Fuels, 2015

Low-temperature corrosion often causes failures of cold-end parts (economizers, air pre-heaters, and fire tubes of hot water boilers) in biomass boilers firing chemically untreated wood chips and bark. The most relevant mechanisms causing low-temperature corrosion are condensation of acids and ...

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Competition between Intra- and Intermolecular Association of Chain Molecules with Water-like Solvent

22.05.2015 | Deepti Ballal; Walter G. Chapman, Journal of Physical Chemistry B, 2015

Fluid properties and phase behavior of systems such as glycol ethers, carboxylic acids, and proteins are affected by the competition between intra- and intermolecular hydrogen bonding. Here we study this competition by extending Wertheim’s first-order thermodynamic perturbation theory to include ...

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