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3.751 Aktuelle Fachpublikationen zum Thema temperature

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Comparative Study of Experimental and Modeling Autoignition of Cyclohexane, Ethylcyclohexane, and n-Propylcyclohexane

17.10.2014 | Zemin Tian; Yingjia Zhang; Feiyu Yang; Lun Pan; Xue Jiang; Zuohua Huang, Energy & Fuels, 2014

Ignition delay times were measured for cyclohexane, ethylcyclohexane, and n-propylcyclohexane at atmospheric pressure, equivalence ratios of 0.5, 1.0, and 2.0, and temperatures of 1110–1650 K behind reflected shock waves with a fixed fuel concentration of 0.5%. Computational simulations were made ...


Numerical Study of the Formation of Soot Precursors during Low-Temperature Combustion of a n-Butanol–Diesel Blend

17.10.2014 | Xiaorong Zhou; Mengtian Song; Haozhong Huang; Ruzhi Yang; Mingxia Wang; Jiaxing Sheng, Energy & Fuels, 2014

To study the soot precursor emission characteristics of a n-butanol–diesel blend during low-temperature combustion (LTC), a model of n-heptane, n-butanol, polycyclic aromatic hydrocarbons (PAHs), and toluene was chosen. Computational fluid dynamics (CFD) software was used to establish a ...


Tropical Intraseasonal Modes of the Atmosphere

17.10.2014 | Yolande L. Serra; Xianan Jiang; Baijun Tian; Jorge Amador-Astua; Eric D. Maloney; George N. Kiladis, Annual Review of Environment and Resources, 2014

Tropical intraseasonal variability (TISV) of the atmosphere describes the coherent variability in basic state variables, including pressure, wind, temperature, and humidity, as well as in the physical phenomena associated with the covariability of these parameters, such as rainfall and ...


Deep-Sea Field Test of the CH4 Hydrate to CO2 Hydrate Spontaneous Conversion Hypothesis

17.10.2014 | Peter G. Brewer; Edward T. Peltzer; Peter M. Walz; Elizabeth K. Coward; Laura A. Stern; Stephen H. Kirby; John Pinkston, Energy & Fuels, 2014

We have carried out a small-scale deep-sea field test of the hypothesis that CH4 gas can be spontaneously produced from CH4 hydrate by injection of a CO2/N2 gas mixture, thereby inducing release of the encaged molecules with sequestration of the injected gas. Pressure cell studies have shown ...


Effects of Instant Pressure Drop Puffing with Super‐Heated Vapor on the Physical Properties of Granny Smith Apple Chips

15.10.2014 | Fengping An, Dongzhao Qiu, Hongbo Song, Xiaoqi Wu, Jinhua Tong, Rui Guo, Journal of Food Process Engineering, 2014

Abstract A central composite rotatable design of three factors was used to optimize instant pressure drop puffing with super‐heated vapor (IPDPSV) for Granny Smith apple slices. The physical properties of the chips processed by hot‐air drying after IPDPSV, hot‐air drying or freeze drying were ...


Epitaxial growth of vertically aligned ZnO nanowires for bidirectional direct-current driven light-emitting diodes applications

15.10.2014 | zhifeng shi; yuantao zhang; xijun cui; shiwei zhuang; bin wu; junyan jiang; xianwei chu; xin dong; Baolin Zhang; Pro ..., CrystEngComm, 2014

We presented a comparative investigation on the morphological and structural properties of the produced ZnO nanowires (NWs) on c-Al2O3 substrates under different preparation conditions. The effects of low-temperature nucleation layer, reaction pressure and light irradiation on the alignment, ...


Theoretical Kinetics Studies on the Reaction of CF3CF═CF2 with Hydroxyl Radical

15.10.2014 | Vahid Saheb; Navid Yousefi Pourhaghighi, Journal of Physical Chemistry A, 2014

The potential energy surface for the reaction of hexafluoropropene with hydroxyl radical is explored by using BB1K density functional method. Single-point energy calculations are performed at CBS-Q level of theory. Semiclassical transition state theory and a modified strong collision/RRKM model ...


Effect of High Pressure on the Crystal Structure and Charge Transport Properties of (2-fluoro-3-pyridyl)(4-iodophenyl)borinic 8-oxyquinolinate complex

14.10.2014 | Grzegorz Jan Wesela-Bauman; Simon Parsons; Janusz Serwatowski; Krzysztof Wozniak, CrystEngComm, 2014

The crystal and molecular structure of (2-fluoro-3-pyridyl)(4-iodophenyl)borinic 8-oxyquinolinate has been determined at room temperature at pressures ranging from ambient to 4.9 GPa in approximately 1 GPa steps. The crystal structure symmetry is conserved during the compression while the a, b ...


Silver tungstate: a single-component bifunctional catalyst for carboxylation of terminal alkynes with CO2 in ambient conditions

14.10.2014 | Chun-Xiang Guo; Bing Yu; Jia-Ning Xie; Liang-Nian He, Green Chemistry, 2014

Silver tungstate was successfully developed as a bifunctional catalyst for the ligand-free carboxylation of various terminal alkynes with electron-withdrawing or electron-donating groups under atmospheric pressure of carbon dioxide (CO2) at room temperature. In this protocol, dual activation – ...


Electrochemical reduction of CO2 in an aqueous electrolyte employing an iridium/ruthenium‐oxide electrode

14.10.2014 | Nehar Ullah, Irshad Ali, Maëlle Jansen, Sasha Omanovic, The Canadian Journal of Chemical Engineering, 2014

Abstract Electrochemical reduction of CO2 in an aqueous electrolyte (Briton Robinson buffer, pH= 5.82) was investigated using an Ir/Ru‐oxide coating deposited on a titanium substrate, as a function of electrode potential and temperature. The results demonstrated that the Ir/Ru‐oxide electrode ...


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