Materials Literature
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A gold nanodisk array, coated with bistable, redox-controllable [2]rotaxane molecules, when exposed to chemical oxidants and reductants, undergoes switching of its plasmonic properties reversibly. By contrast, (i) bare gold nanodisks and (ii) disks coated with a redox-active, but mechanically inert, control compound d…
This study describes a novel, simple, and convenient method for the preparation of water-soluble biofunctional Au nanodots (Au NDs) for the detection of Concanavalin A (Con A) and Escherichia coli (E. coli). First, 2.9 nm Au nanoparticles (Au NPs) were prepared through reduction of HAuCl(4).3H(2)O with tetrakis(hydrox…
Solid state lithium conductors are attracting much attention for their potential applications to solid-state batteries and supercapacitors of high energy density to overcome safety issues and irreversible capacity loss of the currently commercialized ones. Recently, we discovered a new class of lithium super ionic con…
We report the discovery that boron nitride nanotubes (BNNTs), isosteres of CNTs with unique physical properties, are inherently noncytotoxic. Furthermore, we developed a biomemetic coating strategy to interface BNNTs with proteins and cells. Finally, we showed that BNNTs can deliver DNA oligomers to the interior of ce…
We investigated a dry surface decontamination technology using low-pressure arc plasma for radioactive corrosion product films. The low-pressure arc plasma is produced with a transferred-type DC arc discharge that operates under reduced pressure; here, the cathode is the object to be treated. The cathode spots formed…
In this study, the effect of pre-fatigue on the impact tensile properties of the laser welded butt joint between three kinds of steel plates, an ordinary steel for vehicles and two high strength steels with the tensile strength level of 590 and 980MPa, were investigated by split Hopkinson bar apparatus. For comparison…
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…