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2.135 Aktuelle Fachpublikationen zum Thema temperature

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Experimental and Chemical Kinetics Study of the Effects of Halon 1211 (CF2BrCl) on the Laminar Flame Speed and Ignition of Light Hydrocarbons

17.04.2015 | Olivier Mathieu; Charles Keesee; Claire Gregoire; Eric L. Petersen, Journal of Physical Chemistry A, 2015

In this study, the effect of Halon 1211 (CF2BrCl) on the ignition delay time and laminar flame speed of CH4, C2H4, and C3H8 were investigated experimentally for the first time. The results showed that the effects of Halon 1211 on the ignition delay time are strongly dependent on the hydrocarbon: ...

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[Report] The weakening summer circulation in the Northern Hemisphere mid-latitudes

17.04.2015 | Dim Coumou; Jascha Lehmann; Johanna Beckmann, Science , 2015

Rapid warming in the Arctic could influence mid-latitude circulation by reducing the poleward temperature gradient. The largest changes are generally expected in autumn or winter, but whether significant changes have occurred is debated. Here we report significant weakening of summer circulation ...

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Decarboxylation and simultaneous reduction of silver(I) [German sz ligature}-ketocarboxylates with three types of coordination

16.04.2015 | Mariko Hatamura; Shunro Yamaguchi; Shin-ya Takane; Yu Chen; Katsuaki Suganuma, Dalton Transactions, 2015

A series of silver(I) ß-ketocarboxylates were prepared by reaction of ß-ketocarboxylic acids with silver nitrate in the presence of diethanolamine. The silver(I) ß-ketocarboxylates decomposed over a narrow temperature range to form metallic silver, CO2, and the corresponding ketones. In addition, ...

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Irradiation hardening of Mg-doped TlBa2(Ca2−yMgy)Cu3O10−δ superconductors

13.04.2015 | Author(s): Shakil Ahmed , Nawazish A. Khan , M. Mumtaz , A.A. Khurram, Radiation Physics and Chemistry, 2015

Publication date: July 2015 Source:Radiation Physics and Chemistry, Volume 112 Author(s): Shakil Ahmed , Nawazish A. Khan , M. Mumtaz , A.A. Khurram Superconducting Mg-doped TlBa2(Ca2−y Mg y )Cu3O10−δ (y=0, 0.5, 1.0, 1.5) samples were irradiated with gold (Au+4) ions. The zero ...

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Solvothermal synthesis of octahedral NiFe2O4 nanocrystals and catalytic properties for the reduction of some aromatic nitrocompounds

12.04.2015 | Author(s): Hangsong Zheng , Yonghong Ni , Nannan Xiang , Xiang Ma , Fengying Wan, Materials Chemistry and Physics, 2015

Publication date: 5 May 2015 Source:Materials Chemistry and Physics, Volume 158 Author(s): Hangsong Zheng , Yonghong Ni , Nannan Xiang , Xiang Ma , Fengying Wan In this paper, we report the successful synthesis of octahedral NiFe2O4 nanocrystals with room-temperature ferrimagnetism via ...

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Ethanol electro-oxidation reaction using a polycrystalline nickel electrode in alkaline media: Temperature influence and reaction mechanism

12.04.2015 | Author(s): A.F.B. Barbosa , V.L. Oliveira , J. van Drunen , G. Tremiliosi-Filho, Journal of Electroanalytical Chemistry, 2015

Publication date: 1 June 2015 Source:Journal of Electroanalytical Chemistry, Volume 746 Author(s): A.F.B. Barbosa , V.L. Oliveira , J. van Drunen , G. Tremiliosi-Filho Mechanistic and kinetic details of the ethanol oxidation reaction using a nickel electrode in sodium hydroxide solution ...

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Pd/SiO2 and AuPd/SiO2 nanocomposite-based optical fiber sensors for H2 sensing applications

12.04.2015 | Author(s): P.R. Ohodnicki , J.P. Baltrus , T.D. Brown, Sensors and Actuators B: Chemical, 2015

Publication date: 31 July 2015 Source:Sensors and Actuators B: Chemical, Volume 214 Author(s): P.R. Ohodnicki , J.P. Baltrus , T.D. Brown The ability to accurately and safely monitor hydrogen concentration is of significant importance for a broad range of energy, defense, aviation, and ...

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Isocratic and gradient elution in micellar liquid chromatography with Brij‐35

10.04.2015 | Ester Peris‐García, Casandra Ortiz‐Bolsico, Juan José Baeza‐Baeza, María Celia García‐Alvarez‐Coque, Journal of Separation Science, 2015

Polyoxyethylene(23)lauryl ether (known as Brij‐35) is a non‐ionic surfactant, which has been considered as an alternative to the extensively used in micellar liquid chromatography anionic surfactant sodium lauryl (dodecyl) sulfate, for the analysis of drugs and other types of compounds. Brij‐35 ...

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A simple method for the reduction of graphene oxide by sodium borohydride with CaCl2 as a catalyst

05.04.2015 | Author(s): Zhen-zhen Yang , Qing-bin Zheng , Han-xun Qiu , Jing LI , Jun-he Yang, New Carbon Materials, 2015

Publication date: February 2015 Source:New Carbon Materials, Volume 30, Issue 1 Author(s): Zhen-zhen Yang , Qing-bin Zheng , Han-xun Qiu , Jing LI , Jun-he Yang Graphene oxide (GO) prepared by a modified Hummers method was reduced by NaBH4 at room temperature for 12 h in a 0.5 mg/mL GO ...

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Design, synthesis and characterization of picoline based organoselenium compounds, 1,2-bis(pyridine-2/3/4-yl)methyl diselanes: X-ray crystal structure of 1,2-bis(pyridine-3-yl)methyldiselane

05.04.2015 | Author(s): A.K.K. Bhasin , C. Jacob , F. Sasse , K. Karaghiosoff , K.K. Bhasin , S.K. Mehta , Alka Sharma , Rishu, Journal of Organometallic Chemistry, 2015

Publication date: 1 June 2015 Source:Journal of Organometallic Chemistry, Volume 785 Author(s): A.K.K. Bhasin , C. Jacob , F. Sasse , K. Karaghiosoff , K.K. Bhasin , S.K. Mehta , Alka Sharma , Rishu An efficient synthetic protocol affording symmetrical ...

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