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4.112 Aktuelle Fachpublikationen zum Thema temperature

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Zinc Chloride Catalyzed Collective Synthesis of Arylmethylene Bis(3- hydroxy-2-cyclohexene-1-ones) and 1,8-Dioxo-octahydroxanthene/acridine Derivatives

28.10.2014 | Selva Ganesan, Subramaniapillai; Kothandapani, Jagatheeswaran; Ganesan, Asaithampi, Letters in Organic Chemistry, 2014

Abstract: Catalytic amount of ZnCl2 efficiently promoted rapid synthesis of arylmethylene bis(3-hydroxy-2-cyclohexene- 1-one) in water at room temperature in excellent yield. At elevated temperature, ZnCl2 also catalyzed one-pot synthesis of 1,8-dioxo-octahydroxanthene and ...

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Double Diffusive Magnetohydrodynamic (MHD) Mixed Convective Slip Flow along a Radiating Moving Vertical Flat Plate with Convective Boundary Condition

24.10.2014 | Mohammad M. Rashidi et al., PLoS ONE, 2014

by Mohammad M. Rashidi, Neda Kavyani, Shirley Abelman, Mohammed J. Uddin, Navid Freidoonimehr In this study combined heat and mass transfer by mixed convective flow along a moving vertical flat plate with hydrodynamic slip and thermal convective boundary condition is investigated. Using ...

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Speciation of Molybdates under Hydrothermal Conditions

23.10.2014 | Johannes Noack, Frank Rosowski, Robert Schlögl, Annette Trunschke, Zeitschrift für anorganische und allgemeine Chemie, 2014

Abstract In situ Raman spectroscopy was applied to investigate the speciation of molybdates under hydrothermal conditions in 0.2 M aqueous solution in the temperature range between 20 °C and 200 °C and at pH values between 7 and 1. The nature and abundance of molecular and supra‐molecular ...

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Continuous Control of Optical Gaps in Quasi-One-Dimensional Bromide-Bridged Platinum Complexes by Utilizing Chemical Pressure

23.10.2014 | Shohei Kumagai; Hiroaki Iguchi; Shinya Takaishi; Brian K. Breedlove; Masahiro Yamashita; Hiroyuki Matsuzaki; Hiroshi ..., Inorganic Chemistry, 2014

The optical gap in a series of bromo-bridged platinum chain complexes, [Pt(en)2Br](Cn–Y)2·H2O (en = ethylenediamine; Cn–Y = dialkyl sulfosuccinate; n = the number of carbon atoms), was controlled by using chemical pressure. From the single-crystal structure, [Pt(en)2Br](C6–Y)2·H2O is in a ...

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Experimental Measurement and Thermodynamic Modeling of Hydrate Dissociation Conditions for the Argon + TBAB + Water System

23.10.2014 | Saeedeh Babaee; Hamed Hashemi; Amir H. Mohammadi; Paramespri Naidoo; Deresh Ramjugernath, Journal of Chemical & Engineering Data, 2014

Gas hydrate (clathrate hydrate) dissociation data at low to moderate pressures are necessary for practical applications, e.g., for gas separation. However, it is often known or recognized that the separation conditions encountered exist at high pressures and low temperatures. One solution to this ...

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Enhanced low‐field magnetoresistance of La0.7Sr0.3Mn1–xNixO3 compounds by annealing process

22.10.2014 | A. M. Ahmed, M. A. Abedellateef, H. A. Abd El‐Ghanny, Abd El Mo'ez A. Mohamed, physica status solidi (a), 2014

A study of Mn‐site substitution by Ni2+ and the effect of annealing time in polycrystalline bulk La0.7Sr0.3MnO3 in composition range (0 ≤ x ≤ 0.1) is presented. This study involves structural, electrical, magnetoresistance, and thermoelectric power (TEP) measurements. X‐ray diffraction was used ...

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Controlled synthesis of barium chromate microcrystals

21.10.2014 | H. Xiao, S.S. Ding, X. Xu, N. Pan, D.Y. Fan, H.J. Yang, M. Lei, Y.X. Du, R. Zhang, Y.G. Wang, W.H. Tang, Crystal Research and Technology, 2014

Barium chromate (BaCrO4) microcrystals with various morphologies such as shuttle‐like, x‐shaped, ellipsoid, leaf‐like crystals were synthesized from aqueous solutions using poly (sodium 4‐styrenesulfonate) (PSS) as template agent at room temperature. The characterization results show that pH ...

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Effect of three 2-allyl-p-mentha-6,8-dien-2-ols on inhibition of mild steel corrosion in 1M HCl

21.10.2014 | Author(s): S. Kharchouf , L. Majidi , M. Bouklah , B. Hammouti , A. Bouyanzer , A. Aouniti, Arabian Journal of Chemistry, 2014

Publication date: November 2014 Source:Arabian Journal of Chemistry, Volume 7, Issue 5 Author(s): S. Kharchouf , L. Majidi , M. Bouklah , B. Hammouti , A. Bouyanzer , A. Aouniti 2-Allyl-p-mentha-6,8-dien-2-ols P1−P3 synthesized from carvone P are tested as corrosion inhibitors of ...

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Investigation of Ethane Hydrate Formation during Isobaric and Isothermal Conditions

21.10.2014 | M. Naseh; V. Mohebbi; R. M. Behbahani, Journal of Chemical & Engineering Data, 2014

In this work, we studied the mass transfer phenomenon of ethane during hydrate formation. Fifteen different tests were conducted over temperature range of (273.15 to 282.15) K and three levels of pressure at each temperature. A mass transfer approach has been consumed and was evaluated with ...

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Materials, Vol. 7, Pages 7105-7117: Bulk TiB2-Based Ceramic Composites with Improved Mechanical Property Using Fe–Ni–Ti–Al as a Sintering Aid

21.10.2014 | Yang, Chao ; Guo, Hao ; Mo, Daguang ; Qu, Shengguan ; Li, Xiaoqiang ; Zhang, Weiwen ; Zhang, Laichang, Materials, 2014

The densification behavior, microstructure and mechanical properties of bulk TiB2-based ceramic composites, fabricated using the spark plasma sintering (SPS) technique with elements of (Fe–Ni–Ti–Al) sinter-aid were investigated. Comparing the change of shrinkage displacement of pure TiB2 and ...

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