Materials Literature
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Well known long-persistent phosphorous strontium aluminates were synthesized by conventional combustion method in a furnace at about 600oC. By incorporating the obtained phosphorous strontium aluminates into organic host polystyrene, we prepared the organic-inorganic composite material (i.e., phosphor-polystyrene) whi…
Analysis of Electrodeposited Au–Ni Alloy Films for Carbon Inclusion and Crystallinity, Inoue, Takahiro, Sato, Kazuo, Yoshino, Masahiro, Senda, Kazutaka, Yanagisawa, Masahiro, Okinaka, Yutaka, Osaka, Tetsuya
Pb-binding TAR-1 peptides (Ile-Ser-Leu-Leu-His-Ser-Thr) were covalently conjugated on a bolaamphiphile peptide nanotube substrate and the precursors of PbSe were incubated at room temperature. This resulted in the growth of highly crystalline PbSe nanocubes on this biomimetic cylindrical substrate. The growth mechanis…
High resolution in situ X-ray powder diffraction applying synchrotron radiation and differential thermal analysis/scanning calorimetry methods have been used to examine the pseudo-binary system PrAlO 3 -SmAlO 3 . Two kinds of solid solutions with rhombohedral and orthorhombic structure exist at room temperature. At el…
AbstractAs the etching time is varied, the change of thickness of the porous silicon layers was successfully investigated. Thethickness of the PSi layer as a function of anodization time for a p-type substrate that is etched at a constant currentdensity of 50 mA/cm 2 in a 35% hydrofluoric acid solution shows a linear…
AbstractNovel porous silicon chip exhibiting dual optical properties, both Frbry-Perot fringe (optical reflectivity) and photoluminescence had been developed and used as chemical sensors. Porous silicon samples were prepared by an electrochemical etch of p-type sillicon wafer (boron-doped, orientation, resistivity 1 -…
In view of emerging challenges related to sustainable development, this book is designed to evaluate the potential applications of sulfur in the construction, asphalt pavement and sewerage management industries. Its 8 chapters are organized as follows: chapter 1 includes a brief overview of the range of technological…
The minimum inhibitory concentration(MIC) of chitosan and its derivatives on bacteria and fungi were evaluated,effects of the different concentrations of chitosan and its derivatives on inhibitory activities were studied.Meanwhile,compound preservations were made with chitosan as main reagents and sodium diacetate as…
This study investigated ZnO nanowires, grown by different solutions of zinc nitrate and zinc acetate, using scanning electron microscopy, room-temperature photoluminescence, and X-ray photoelectron spectroscopy. ZnO grown by zinc nitrate had thinner nanowires, with the average diameter being reduced by about five time…
As a result of various spinning types, different kinds of yarns have different structures and performances. In this research we developed a composite yarn spinning system that produces different kinds of composite yarns containing filament on a modified rotor spinning frame. Rotor-spun composite yarn and sirofil were…
In response to a growing public concern over the potential environmental and human health-related effects associated with impacted sites, many countries have launched national frameworks for remediation of high priority sites. Some countries have developed Risk-Based Screening Levels (RBSLs) as part of a national fram…
This paper describes the fatigue crack propagation behavior of rolled and extruded AZ31B magnesium alloys (grain size: approximately 20 and 15 μm, respectively). Fatigue crack propagation tests were performed on center cracked plate tension specimens at a stress ratio of R=0.1 and a frequency of 10 Hz at room temperat…
The solubility of potassium dihydrogen phosphate (KDP) was determined for five different temperatures. Metastable zone width of aqueous solutions of KDP saturated at different temperatures was determined by nucleation method in pure form and adding a well-known chelating agent ethylenediaminetetraacetic acid (0.5 mol%…
The wet-process phosphoric acid is produced by decomposition of phosphate raw materials with sulphuric acid. This gives a large amount of waste product-phosphogypsum. The thermochemical decomposition of phosphogypsum gives a gas rich in SO2. This gas is processed to obtain sulphuric acid, which is fed back into phosph…
Some properties of the ingot and especially of the steel forging ingots depend on the ratio of a columnar structure area to an equiaxed structure area created during solidification. The C-E transition is fundamental phenomenon that can be applied to characterize massive cast steel ingots produced by the casting house.…
Monodisperse gold nanocrystals with unique near-infrared optical properties were synthesized by simple mixing of highly shortened and well disperse single-walled carbon nanotubes and chloroauric acid in water at ambient conditions with a step-wise increase of gold ion concentration.
Expanding the non-knot region of the famous Möbius strip with topological one-sided characteristics, an interesting structure of a Möbius basket molecule with all real frequencies was obtained at the B3LYP/6-31G(d) level for the first time. This structure contains six fused five-membered pyrrole rings contrasting with…
The internal plasticization of chitosan with covalently linked long aliphatic branches, typically 12C, was accomplished through the condensation of the amino groups of chitosan with acidic derivatives of lauric acid, as lauroyl anhydride or lauroyl chloride, that are more reactive than the fatty acid itself. The chemi…
Abstract—This paper studies the left-handed behavior in conventional 2-port coupled line networks. The propagation parameters of 12 periodic structures, each has a different coupled line configuration, have been derived and the left-handed bands have been determined. Two structures were fabricated and measured to conf…
It is shown how the properties of a porous silica xerogel prepared using a classical sol-gel synthesis can be fine-tuned by a minor modification of the composition. The addition of a doping cation (Cu(2+), Ca(2+), Na(+)) in trace quantities in the silica sol was found to exert a dramatic effect at all stages of materi…