Electrocatalytic activity and stability of platinum nanocubes and nanospheres were comparatively investigated towards methanol oxidation reaction. The results indicate that the {100}-bounded Pt nanocubes exhibit not o...
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Objective: The aim of this in vitro study was to compare the flexural strength and flexural modulus of three formulae self-curing acrylic resin with commercial orthodontic resin. materials and Methods: Three formulae ...
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Objective: The aim of this in vitro study was to compare the flexural strength and flexural modulus of three formulae self-curing acrylic resin with commercial orthodontic resin. materials and Methods: Three formulae of Thai local made resins and a commercial self-curing acrylic resin(Orthocryl) were tested. Thai resin powder was produced by varying amounts of initiator(Asobisisobutyronitrile;AIBN);formula 1, 2, and 3. To investigate the flexural properties, test specimens(3.3 mm x 10 mm x 64 mm) were fabricated, five specimens for each group. Flexural strength and flexural modulus were measured by three-point bending test according to ISO 20795-2: 2010. Statistical analysis was performed using the Kruskal-Wallis test followed by Dunn's multiple comparison test. Result: The Kruskal-Wallis test revealed significant(p < 0.05) differences in flexural strength and flexural modulus among some groups. Orthocryl had the highest flexural strength and formula 1 Thai local made resin had the highest flexural modulus according to Dunn's test(p< 0.05). Conclusion: From the results of this study, the amount of initiator in Polymethylmethacrylate(PMMA) beads synthesis had no effect on flexural strength, but it was consistent with flexural modulus of Thai local made resin. However, the molecular weight of each group of Thai local made resin powder needs to be investigated to find the optimal molecular weight distribution in a subsequent study.
In order to predict the quality of UAM bonding and to provide a framework for the optimization of UAM processing parameters, a multi-scale laminated plate model is presented in this paper. The model considers the inte...
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A simulation-based optimization methodology for designing unitary residential air conditioners with focus on both energy performance enhancement and cost savings is presented. A steady-state system simulation model wa...
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Multi-hole defect (MHD) photonic crystal cavities functionalized with in situ synthesized DNA bioreceptors are demonstrated for biosensing applications. By significantly increasing light interaction with target biomol...
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This paper discusses a new class of PEMs that are based on a PE-g-s-PAES graft copolymer containing several sulfonated poly(arylene ethersulfone) side chains. The unique combination of hydrophobicity, semi-crystallini...
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Phase equilibrium of the Mg-Zn-Sm ternary system at the Mg-rich region at 400°C was investigated. One ternary phase Z was confirmed, with a composition formula of Mg3Zn10Sm and crystal structure of P63/mmc. Zn wa...
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ISBN:
(纸本)9781118605523
Phase equilibrium of the Mg-Zn-Sm ternary system at the Mg-rich region at 400°C was investigated. One ternary phase Z was confirmed, with a composition formula of Mg3Zn10Sm and crystal structure of P63/mmc. Zn was found to have large solubility in both Mg 3Sm (∼35.6 wt.%) and Mg41Sm5 (∼4 wt.%) phases. An isothermal section of 400°C in the Mg-rich corner was constructed, which provides important understanding of phase relationships in the Mg-Zn-Sm system.
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