Materials Literature
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Violet-blue photoluminescence (β-band emission) of twofold-coordinated tin (O–Sn 0 –O, >Sn 0 ) atoms in silica (SiO 2 ) glasses, synthesized via a sol–gel route, was observed with a large band tail to longer wavelength. The presence of >Sn 0 centers more easily enabled us to produce Sn-associated E'-centers with X-ray…
We have fabricated the cross-point phase change memory with a selection diode made of poly-Si. The selection diode was fabricated using a low-thermal-budget process that achieved low contact resistivity, high on-current density of 8 MA/cm2 and low off-current density of 100 A/cm2. The improvement in the properties of…
In order to improve filler-fiber bonding in paper, starch-filler composites were prepared by a starch-fatty acid complex formation method. These composites were used as a papermaking filler to improve the physical properties of the paper, filler retention, and the sizing effect. The solubility of the starch-fatty acid…
Abstract Cation‐exchange–capacity (CEC) results of calcareous soils and clays can be erroneous if the ammonium acetate method is used. In this study, a model is proposed to explain the process for systematic underestimation of the CEC. Seven clayey sediments from Germany with varying calcite and low organic‐C content…
The acoustic sound dispersion of nitrogen in its liquid and supercritical phase has been studied by Inelastic X-Ray Scattering (IXS). Approaching supercritical conditions, the gradual disappearance of the positive sound dispersion, characteristic of the low-temperature liquid, is observed. In the supercritical state,…
A solid shell element model is proposed for the elastic bifurcation buckling analysis of double-walled carbon nanotubes (DWCNTs) under axial compression. The solid shell element allows for the effect of transverse shear deformation which becomes significant in a stocky DWCNT with relatively small radius-to-thickness r…
In the present work, a large glass‐forming region was found in the novel GeS 2 –Sb 2 S 3 –PbS system, in which up to 58 at.% PbS could be incorporated without deteriorating the thermal and physical properties of glasses. Infrared (IR) transmitting glass ceramics with a large amount of small‐sized crystals (<100 nm)…
Abstract Kapellasite, Cu 3 Zn(OH) 6 Cl 2 , is a new secondary mineral from the Sounion No. 19 mine, Kamariza, Lavrion, Greece. It is a polymorph of herbertsmithite. Kapellasite forms crusts and small aggregates up to 0.5 mm, composed of bladed or needle-like indistinct crystals up to 0.2 mm long. The colour is green-b…
Layered systems include a large number of mineral families and synthetic compounds of great technological importance. It is well known that their structural features, including those associated to certain defects, are directly related to their physical-chemical properties. Indeed the microstructural characterization o…
According to current knowledge and understanding, nuclear fusion can be developed to a sustainable energy technology. Fuel is abundant and key points for fusion power production and alpha particle heating have already been demonstrated. The next step device, international thermonuclear experimental reactor (ITER), is…
Abstract We report on photo-stimulated reversible association and dissociation of hydrogen bonding for self-assembled fibers comprising physical gels. The gels are formed by a hydrogen-bonded gelator containing photochromic azobenzene moieties. The photoswitching of hydrogen bonding is caused by the changes of molecul…
It has been found experimentally as well as theoretically that the lattice thermal conductivity can be largely reduced by the size confinement effect. The significant boundary scattering effect is one of the dominant factors. In most existing lattice thermal conductivity models, an empirical relation is used for this…
Abstract Nitrogen-enriched mesoporous carbon which has been successfully prepared from quinoline-polymerized pitch using mesoporous silica as a template denoted ordered hexagonal assembly of fibrous carbon having ca. 6–7 nm in diameter and higher capacitance amounting to 200–300 F·g−1 in H2SO4 electrolyte than ordinar…
ISHS IV International Conference on Managing Quality in Chains - The Integrated View on Fruits and Vegetables Quality EFFECTS OF CHITOSAN SEED TREATMENT ON COLLETOTRICHUM SP. AND SEEDLING GROWTH OF CHILI CV. ´JINDA´
The bending behavior of yarn is affected by mechanical properties, arrangement and interaction between its constituent fibers and yarn geometry. In this study the yarn bending rigidity was obtained from the tensile modulus of its constituent fibers and yarn geometry and structural parameters and it was shown that the…
Novel room-temperature-vulcanized silicone rubber (RTV-SR)/organic montmorillonite (OMMT) nanocomposites were prepared by a solution intercalation process. Di(2-oxyethyl)-12 alkane- 3 methyl-amine chloride was used as the intercalation agent to treat Na°-montmorillonite and form a new kind of OMMT. Four types of RTV-S…
Recent nanoindentation experiments on bulk samples as well as compression tests on micro-pillars indicate that the micron-sized material volumes exhibit a first yield point that strongly depends on the sample size. In this work, molecular dynamics (MD) simulations are carried out to investigate the onset of yielding i…
Various concentrations of the globular protein hemoglobin were successfully electrospun to create micro-fibrous mats of varying physical and mechanical characteristics. The electrospinning parameters are reported. One concentration of myoglobin was electrospun into a mat for comparison to the hemoglobin mats. Scanning…
Samples of SiCN ceramics were synthesized by thermal treatment of commercially available CERASET™ polyureasilazane, used as liquid-polymer precursor, at pyrolysis temperatures of 1000, 1050, 1100, 1150, and 1200°C. Electron paramagnetic resonance (EPR) signals due to sp2-hybridized carbon-related dangling bonds were r…
We investigated calcium interactions with the surface of individual living cells of the freshwater cyanobacterium Synechococcus leopoliensis PCC 7942 under illumination and calcite supersaturation, with respect to calcium carbonate nucleation on the cell surface. Immobilized living cells were scanned by Atomic Force M…