Materials Literature
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Solid oxide fuel cells (SOFCs) are attractive emerging energy conversion devices. Particularly, SOFC electrochemically react fuel and oxygen to generate electricity efficiently with ultra low pollutant emissions. For SOFC systems to be widely utilized in the future, SOFC will have to be effectively integrated with a w…
The effects of oxygen plasma treatment on tensile deformation of nano-SiO2 sol-gel coating ultra-high molecular weight polyethylene（UHMWPE） filaments are investigated and a new concept for the nano-structural interface between fiber surface and nano-coating is provided. The tensile test results show that the activatio…
Weathering of rocks and minerals, which include physical, chemical, and biological processes, contributes to the development of soil. The degree of weathering depends not only on the rock and mineral composition but also on climate and biological activities. Experiential learning activities for different global region…
We present metamaterials for the terahertz range consisting of micromachined thin strontium titanate platelets. They display electromagnetic resonances with negative permeability around a frequency which is tunable as the intrinsic material permittivity depends upon temperature.
The present work aims to answer the question, which combinations of parameters lead to which texture, and which ones have the largest influence, in the continuous synthesis of nanoporous silica particles from an aerosol. A precursor solution, consisting of dissolved organosilicate species (as silica source) and micell…
The luminescence dynamics of a polypyridyl ruthenium II [Ru(phen)2(ip)]2+ and 5,10,15,20-tetraphenylporphyrin (H2TPP) dyad have been measured by using time-resolved fluorescence spectroscopy. The transient luminescent spectra of the dyad show an ultrafast energy transfer within 300 ps after photoexcitation of the [Ru(…
The introduction of computer simulations has promoted significant design optimisation and cost reduction in many fields of engineering. Nowadays, atomistic modelling of materials is becoming time and cost effective not only for pure research, but also for cutting-edge engineering applications. In this paper we present…
The promoting effect of vanadium(V, IV) in the reaction of gallic acid oxidation with bromate ions in aqueous solutions was studied, and the dependence of the rates of catalytic and noncatalytic reactions on the concentration of components was found. A catalytic mechanism was proposed based on the experimental results…
Hose separations remain a significant problem for the class 1 railroads. They average about six thousand undesired hose separations a year. There are a lot of facts that the railroads are aware of, but lack good explanations. Why do more separations happen in the winter than in the summer? Why are old end hoses more p…
The rotating spindle stiffness measurement with a developed magnetic loading device is proposed in this research. The circumferential grooved tool is designed and manufactured for cutting down the eddy current which decreases the electromagnetic attractive force by the loading device. The spindle stiffness is measured…
The poly(3, 4‐ethylenedioxythiophene)/multi‐wall carbon nanotubes (PEDOT/MWCNTs) modified screen‐printed carbon electrodes (SPCEs) were fabricated and their catalytic properties towards nitric oxide (NO) gas, evolved via the disproportion reaction of nitrite in an acid solution, were studied. The thicker the PEDOT fil…
Nanosize devices have attracted tremendous interest over the last few years for a wide range of biomedical, biochemical sensing, and optoelectronic applications. In this paper, we will review recent progress in understanding the behavior of lead‐iodide‐based nanocrystals and discuss their optical properties. Due to a…
This third edition of the Companion Guide of ASME Boiler & Pressure Vessel and Piping Codes has been updated to the current (2007) Code Edition. The first two volumes covering Code Sections I through XI address organizational changes of B&PV Code Committees and Special topics relating to the application of the…
Cet article présent des travaux qui visent a la valorisation de déchets issus de l’industrie de transformation de l’olive ainsi que du papier (cellulose). L’objectif est la création et la caractérisation d’un matériau isolant à base de grignon et de cellulose. Différentes compositions cellulose/grignon ont été étudiée…
The purpose of the present work is to investigate the effects of helium plasma treatment on tensile deformation of nano-SiO2 sol-gel coating T300 carbon fiber and provide a new concept for the nano-structural interphase between fiber surface and nano-coating. The tensile test results show that the activation volumes o…
高分子融体からの結晶化過程は，一次核生成と結晶成長という二つの主な機構からなっている．アイソタクチックポリプロピレン(iPP)の結晶構造，結晶成長速度およびモルフォロジーについては，多くの研究結果が報告されている．しかし，一次核発生速度の結晶化温度依存性を詳しく報告した論文は少ない．iPP の核発生速度は非常に速いため，従来高温域の極めて狭い結晶化温度範囲でしか実測することができなかったが，測定法を改善することにより，広い結晶化温度範囲での測定を可能にした．本報では，iPP の α 型，β 型(β 核剤添加)の核発生速度(I)および飽和核数(Ns)を広い結晶化温度範囲で実測し，それぞれの結晶型の結晶化温度依存性について考察を行った…
Sodium octanoate CH3-(CH2)6-COONa was found to be one of the straight chain aliphatic carboxylates that show good inhibition characteristics towards mild steel. However, as the previously tested concentrations were too high to be applied in the water treatment of secondary circuits, lower concentrations have been inve…
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Y. S. Lim, J. G. Ahn, T. Joo, K. J. Yee, E. H. Haroz, L. G. Booshehri, and J. Kono, "Coherent Lattice Vibrations in Small Diameter Single-Walled Carbon…
A set of experimental results reported in the literature was analysed by the application of a mathematical model developed previously. The experimental results analysed consist in a set of shape memory polycrystalline samples which was subject to simple uniaxial tension test. The crystalline orientation of several gra…
Natural fibres have received a growing interest from the composite community over the last decade because they offer a low cost and environmentally friendly alternative to conventional reinforcing fibres. Natural fibre reinforced materials are currently used in different domains such as the automotive industry for exa…