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  • 1
    Electronic Resource
    Electronic Resource
    The Self-Cleaving Activity of Nucleolin Determines Its Molecular Dynamics in Relation to Cell Proliferation
    Amsterdam : Elsevier
    Experimental Cell Research 208 (1993), S. 48-53 
    Details
    ISSN: 0014-4827
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1006/excr.1993.1221
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    Paper (German National Licenses)
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  • 2
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    A computational study of diffusion in a glass-forming metallic liquid (2015)
    Springer Nature
    Details
    Publication Date: 2015-06-10
    Description: Liquid phase diffusion plays a critical role in phase transformations (e.g. glass transformation and devitrification) observed in marginal glass forming systems such as Al-Sm. Controlling transformation pathways in such cases requires a comprehensive description of diffusivity, including the associated composition and temperature dependencies. In the computational study reported here, we examine atomic diffusion in Al-Sm liquids using ab initio molecular dynamics (AIMD) and determine the diffusivities of Al and Sm for selected alloy compositions. Non-Arrhenius diffusion behavior is observed in the undercooled liquids with an enhanced local structural ordering. Through assessment of our AIMD result, we construct a general formulation for Al-Sm liquid, involving a diffusion mobility database that includes composition and temperature dependence. A Volmer-Fulcher-Tammann (VFT) equation is adopted for describing the non-Arrhenius behavior observed in the undercooled liquid. The composition dependence of diffusivity is found quite strong, even for the Al-rich region contrary to the sole previous report on this binary system. The model is used in combination with the available thermodynamic database to predict specific diffusivities and compares well with reported experimental data for 0.6 at.% and 5.6 at.% Sm in Al-Sm alloys. Scientific Reports 5 doi: 10.1038/srep10956
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
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  • 3
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    AuRu/ meso -Mn 2 O 3 : A Highly Active and Stable Catalyst for Methane Combustion (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-05-17
    Description: Three-dimensionally ordered mesoporous Mn 2 O 3 ( meso -Mn 2 O 3 ) and its supported Au, Ru, and AuRu alloy (0.49 wt% Au/ meso -Mn 2 O 3 , 0.48 wt% Ru/ meso -Mn 2 O 3 , and 0.97 wt% AuRu/meso-Mn 2 O 3 (Au/Ru molar ratio = 0.98)) nanocatalysts were prepared using the KIT-6-templating and polyvinyl alcohol-protected reduction methods, respectively. Physicochemical properties of the samples were characterized by means of numerous techniques, and their catalytic activities were evaluated for the combustion of methane. It is found that among all of the samples, 0.48 wt% Ru/ meso-Mn 2 O 3 and 0.97 wt% AuRu/ meso -Mn 2 O 3 performed the best (the reaction temperature ( T 90% ) at 90% methane conversion was 530-540°C), but the latter showed a better thermal stability than the former. The partial deactivation ...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 4
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    Effect of Topology Structure on the Output Performance of an Automobile Exhaust Thermoelectric Generator (2017)
    Institute of Physics (IOP)
    Details
    Publication Date: 2017-05-20
    Description: The majority of the thermal energy released in an automotive internal combustion cycle is exhausted as waste heat through the tail pipe. This paper describes an automobile exhaust thermoelectric generator (AETEG), designed to recycle automobile waste heat. A model of the output characteristics of each thermoelectric device was established by testing their open circuit voltage and internal resistance, and combining the output characteristics. To better describe the relationship, the physical model was transformed into a topological model. The connection matrix was used to describe the relationship between any two thermoelectric devices in the topological structure. Different topological structures produced different power outputs; their output power was maximised by using an iterative algorithm to optimize the series-parallel electrical topology structure. The experimental results have shown that the output power of the optimal topology structure increases by 18.18% and 29.35% ve...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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