Materials Literature
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ZnO is introduced as an alternative to TiO 2 in dye sensitized solar cells (DSSCs) due to its band gap similar to TiO 2 , higher electron mobility, and flexible procedures of preparations. Several samples of ZnO films are prepared with the hydrothermal synthesis method and the sol-gel technique, respectively. These Zn…
Assemblies of metal nanospheres have shown interesting properties for nanophotonics. Here the authors describe a method to use robust DNA multicrossover molecules to organize Au nanoparticles with different sizes to form well controlled linear chain structures with desired distance below 10nm between the particles. Au…
Electrolytic products are hard to be removed from the machining gap in micro ECM (electrochemical machining) process, which may lower the machining speed or even stop the machining process. Intermittent withdrawal of electrode is an effective way to cleanse electrolytic products, renew electrolyte in the gap, and prom…
We report on the fabrication of polyvinylidenefluoride (PVdF) PVdF/PbS and PVdF/PbS/Au heterogeneous nanostructures by the processes, electrospinning and chemical treatment. Initially electrospinning a solution consisting of PVdF and lead acetate was used to form PVdF nanofibers loaded with Pb ions. Exposure of Pb ion…
A zoom lens system with no moving elements is reported. The system is composed of three lenses: one glass lens and two liquid crystal (LC) ones almost identical in structure. The focal length of the LC lenses is tunable from negative to positive with two independent applied voltages. The two LC lenses are placed on tw…
Iron nanoparticles (Fe(np)) with average diameter 50 nm have been synthesized by addition of NaBH4 to FeCl3 solution then radical initiator, (11-(2-bromo-2-methyl)propionyloxy)undecyltrichlorosilane (1) has been immobilized on to Fe(np). Surface-initiated atom transfer radical polymerization (SI-ATRP) of different mon…
The authors did some experiments and calculations on the initial magnetization curves for Fe-3mass%Si powder cores. The initial magnetization curves of the powder cores with gas-atomized and water-atomized powders were measured. The magnetic flux density was high for water-atomized powder cores at low magnetic fields,…
The kinetics of volume relaxation for Pd 46 Cu 35.5 P 18.5 and Pt 60 Ni 15 P 25 BMGs were investigated by high-resolution density experiments at room temperature. The distinct two- steps relaxation behavior was observed for as-quenched BMGs. After pre-annealing as- quenched Pd 46 Cu 35.5 P 18.5 BMG in the supercooled…
The hydroisomerization reaction of n -octane at atmospheric pressure and a temperature of 230°C on platinum-containing catalysts with a combined micro-mesoporous structure synthesized on the basis of MOR and BEA zeolites was studied. The influence of the nature of zeolite, the relative amount of micropores, the platin…
The buckling analysis of fuel rods during an end drop impact of a spent fuel transportation cask has traditionally been performed to demonstrate the structural integrity of the fuel rod cladding or the integrity of the fuel geometry in criticality evaluations for a cask drop event. The actual calculation of the fuel r…
The effect of the functionality of modifiers on the adsorption of vapors of compounds capable of strong specific interactions, including water, diethyl ether, and acetonitrile, on silicas with chemically grafted perfluorohexylsilanes (RSi(CH3)3 −m Cl m , where m (functionality) is 1, 2, 3 and R is polyfluoroalkyl) was…
This paper proposes two types of electromagnetic bandgap (EBG) structures aimed for SAR reduction on a mobile phone antenna. The EBG structures, one which uses vias while the other does not can reduce the surface wave and prevent the undesired radiation from the antenna. Thus, these structures can reduce the electroma…
JET-EFDA, Culham Science Centre, OX14 3DB, Abingdon, UK Institute for Energy Research Plasma Physics, Forschungszentrum Julich, Association EURATOM-FZJ, Trilateral Euregio Cluster, 52425 Julich, Germany Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain EURATOM-UKAEA Fusion Association, Culham, U…
The surface tension of a liquid is one of the basic factors determining cavitation and cavitation erosion. The expansion and contraction of cavitation bubble in liquids with different surface tensions are investigated experimentally, which are compared with theoretical analyses based on Rayleigh-Plesset equation. In t…
ABSTRACT In this study, we investigated tensile properties and ultrastructural changes of straight permed hair using the rheometerand the scanning electron microscopy. First, we compared the morphological characteristic between the virgin hair and thestraight permed hair after testing tensile strength. Cuticle cells w…
We demonstrate enhancements in photocurrent and conversion efficiency for thin-film Si cells on glass due to plasmonic light-trapping. In this work, silver nanoparticles were formed on the rear surface of evaporated solid-phase-crystallised poly-Si thin-film solar cells coated with an intermediate dielectric layer. We…
Contributions from various deformation mechanisms to relax stresses in Cu thin films are of technological interest for interconnect reliability. Stress‐induced voiding in Cu interconnects for example is one effective process to relax thermally induced stresses which occur during processing and testing at elevated temp…
Glass/polymer/glass laminates have been manufactured in a vacuum lamination process. A laminate stack of front glass, encapsulate polymer (Ethylenevinylacetate - EVA) and a back glass was combined under constant load, vacuum and varying temperature profile. In this work, a procedure and experimental results to examine…
Antimony oxide has been used as fining agent for quite some time as a substitute for arsenic oxide in low temperature furnaces, not reaching temperatures high enough to activate sulphate compounds ...
Nanofluids exhibit enhanced thermal conductivity with decreasing particle size, while nanocrystalline solids show a thermal conductivity reduction with decreasing grain size. Both phenomena can be modeled as being due to a boundary phase acting as a thermal bridge or barrier, respectively. In this paper a new phase mi…