نتایج جستجو برای: liquid transformation

تعداد نتایج: 434946  

Journal: :Environmental science & technology 2010
C Andrew Ramsburg Christine E Thornton John A Christ

Abiotic and biotic reductive dechlorination with chlorinated ethene dense non-aqueous-phase liquid (DNAPL) source zones can lead to significant fluxes of complete and incomplete transformation products. Accurate assessment of in situ rates of transformation and the potential for product sequestration requires knowledge of the distribution of these products among the solid, aqueous, and organic ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

, H. Arabi , M .Shahmiri,

  Abstract:   The aims of this research were to investigate the effects of semisolid metal (SSM) processing parameters (i.e., shear rates –times – temperatures combinations) on the primary solidification products and isothermal holding duration, subsequent to cessation of stirring on the secondary solidification of Al-Si (A356) alloy.   The dendrite fragmentation was found to be the governing m...

2000
T. Cagin Y. Qi H. Li Y. Kimura H. Ikeda W. L. Johnson Yoshitaka Kimura Yue Qi Hao Li Hideyuki Ikeda William L. Johnson William A. Goddard

Recently, we have parametrized Sutton-Chen type empirical many body force elds for FCC transition metals to study the thermodynamic, mechanical, transport and phase behavior of metals and their alloys. We have utilized these potentials in lattice dynamics calculations and molecular dynamics simulations to describe the structure, thermodynamic, mechanical and transport properties of pure metals ...

Journal: :Physical review letters 2009
Stephen F Swallen Katherine Traynor Robert J McMahon M D Ediger Thomas E Mates

Highly stable glasses of tris-naphthylbenzene transform into a liquid when annealed above the glass transition temperature T_{g}. In contrast to the predictions of standard models, the observed transformation is spatially inhomogeneous. Secondary ion mass spectrometry experiments on isotopically labeled multilayer films show that the liquid grows into the stable glass with sharp growth fronts i...

Journal: :Bioresource technology 2012
N Schwaiger V Witek R Feiner H Pucher K Zahel A Pieber P Pucher E Ahn B Chernev H Schroettner P Wilhelm M Siebenhofer

The aim of the present work was to improve the C:O ratio in biomass by preserving the lignin macrostructure of lignocellulosic feed. The intention of liquid phase pyrolysis is to liquefy biomass and prepare biomass for further upgrading steps like hydrogenation and deoxygenation. Pyrolysis was carried out in a non-aqueous liquid phase heat carrier. The process was carried out in a semi-batch re...

Journal: :Proceedings of the National Academy of Sciences 2011

2010
Nirav Bhatt Michael Amrhein Dominique Bonvin

This paper deals with the identification of reaction and mass-transfer rates from concentrations measured in gas-liquid reaction systems. It is assumed that the reactions take place in the liquid bulk only. The identification proceeds in two steps: (i) estimation of the extents of reaction and mass transfer from concentration measurements, and (ii) estimation of the parameters of the individual...

2017
Yiliang Lin Yang Liu Jan Genzer Michael D Dickey

Stable suspensions of eutectic gallium indium (EGaIn) liquid metal nanoparticles form by probe-sonicating the metal in an aqueous solution. Positively-charged molecular or macromolecular surfactants in the solution, such as cetrimonium bromide or lysozyme, respectively, stabilize the suspension by interacting with the negative charges of the surface oxide that forms on the metal. The liquid met...

Journal: :iranian journal of biotechnology 2009
shyam prasad gurram narasimha rao kollu girisham sivadevuni madhusudan reddy solipuram

the present investigation was aimed at studying the effect of incubation period, media, vitamins and solvents on biotransformation of albendazole by cunninghamella blakesleeana. the transformation was evaluated and identified by high performance liquid chromatography (hplc) and the structures of the transformed products were assigned by liquid chromatography-tandem mass spectrometry (lc/ms/ms) ...

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