Materials Literature
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Micro- and nanocrystalline ZnO powders and films have been prepared under mild hydrothermal conditions, and their spectroscopic and lasing properties have been investigated. The polycrystalline ZnO films showed stimulated emission with a lasing threshold of 0.67 MW/cm 2 . Analysis of their lasing behavior suggests tha…
ビス(ターピリジン)を基本骨格とする有機モジュールと，鉄やコバルトなどの金属イオンの錯形成により，有機モジュールと金属イオンが交互に結合した有機/金属ハイブリッドポリマーを合成した．得られたポリマーは，金属イオンからターピリジン部位への電荷移動に基づく発色が生じた．これらポリマーのサイクリックボルタンメトリー測定では，金属イオンの酸化還元に従って，可逆なレドックス波が観測された．興味深いことに，このハイブリッドポリマーのキャストフィルムに，金属のレドックス電位より高い電位を印加すると，フィルムの発色が消失することを見いだした(エレクトロクロミック特性)．金属種や有機モジュールを変えることで，多様な色を表現できることを見いだした．ま…
In this paper cathode delamination is studied in order to better understand its effect on the electrochemical performance of planar solid oxide fuel cells (SOFCs). In recent published work cathode delamination has been suggested to play a significant role in voltage degradation. Voltage degradation has challenged this…
Core exchangeable polymer-silica hybrid capsules with solvent-selective permeability were fabricated, in which the internal silica layer, formed from pre-included precursors, has the role of a framework to prevent irreversible deformation of the hollow capsules.
We describe a design methodology for synthesizing cubic-phase optical elements using two-dimensional subwavelength microstructures. We combined a numerical and experimental approach to demonstrate that by spatially varying the geometric properties of binary subwavelength gratings it is possible to produce a diffractiv…
This work reports the effect of the heater electrode of a bilayer structure on phase-change memory (PCM) devices. The large amount of Joule heat generated from the high-resistive single-layer heater degraded the PCM device, whereas the bilayer heater composed of two kinds of different materials improved the device rel…
This is a study on the field emission (FE) from carbon submicron-tube multiwall covered with carbon nanotubes (MWCNTs), which forms a dendrite structure as a field-emitter array, by chemical vapor deposition method. To improve the FE luminescence uniformity, the bamboo carbon submicron tubes are grown on a reactive cu…
Systems of silty sand-water and clayey rock-water were simulated under open-system conditions with respect to CO 2 and oxygen at 25°C. It was shown that the dawsonite(+ quartz)+kaolinite assemblage at the Zaozernyi deposit was formed by interaction of terrigenous sediments with chloride-sodium solutions containing NaC…
Progress in Electromagnetics Research Symposium
V 2 O 5 thin films were prepared by pulsed laser deposition (PLD). Ag-doped V 2 O 5 thin films were prepared by the reaction between V 2 O 5 thin films and 1 M AgNO 3 solution for 3 min. Photochromism and photoelectrochromism in V 2 O 5 and Ag-doped V 2 O 5 thin films were investigated. Absorption spectra measurement…
Here, we theoretically predict antiaromatic double-decked compounds [DMB(6)](q-) (D = B(6)(2-), Cp(-); M = Li, Na, K, Be, Mg, Ca) as well as the triple-decked sandwich-like species. Being energetically higher than the fusion isomers, the homo-decked assembly species [B(6)MB(6)](q-) without and with counterions are les…
The doping effects of Al2O3 on SiO2 (α-cristobalite) have been studied by first principles calculations, with emphasis on the structural, electronic and optical properties. Compared to pure SiO2 crystal, the electronic density of states (DOS) of the Al2O3 doped SiO2 show significant changes. The electron energy states…
There are some fatigue damage estimation methods of an austenitic stainless steel that uses martensitic transformation. For instance, those are the remanent magnetization method, the excitation method, and so on. Those two methods are researched also in our laboratory now. In the remanent magnetization method, it is w…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Yu Matsuda, Yasuteru Fukawa, Mitsuru Kawashima, Seiji Kojima; Fragility Variation of Lithium Bora…
Poly(butylene adipate-co-terphthalate) (PBAT) is a biodegradable polymer with high ultimate elongation but low modulus. This paper demonstrates that the addition of nano-sized clay can improve the modulus without significantly decreasing the tensile strength and biodegradability of the PBAT , while offering enhanced b…
The interior design of motor vehicles depends mostly on the appearance and properties of fabric with prevailing woven articles. When upholstering motor vehicle seats and interiors fabrics mostly constitute the exterior part of these interiors, as so-colled original covers. These fabrics belong to the group of technica…
A theoretical model is introduced to derive the ME voltage coefficients of bilayer in free state according to the constitutive equations of magnetostrictive and piezoelectric phases. Using this model, the ME voltage coefficients of La07Sr03MnO3(LSMO)-PZT and Tb1-xDyxFe2-y (TDF)-PZT bilayers have been calculated and…
The work is devoted to increase of foundry properties of secondary silumins. The influence of a chip contents in charge, quantities of iron in an alloy and the modifier used for processing of liquid metal, on fluidity, linear shrinkage, crack resistance and a porosity number of silumin AlSi9Cu2 is considered.
This study investigated the effects of nano TiO 2 in self-cleaning leathers. Nano TiO 2 was applied as a top coat to white goat leathers at 25%, 50%, 75% and 100% ratios, based on the amount of lacquer emulsion. To observe the self cleaning effect, the leather samples to which nano TiO 2 had been applied and control s…
Well aligned ZnO nanorod arrays on Si substrate previously coated with a thin buffer layer of ZnO seeds via radio-frequency magnetron sputtering, which were synthesized by the aqueous solution method. The sample was characterized by scanning electron microscopy, X-ray diffraction, high-resolution transmission electron…