Materials Literature
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ZnO thin films have been deposited by chemical bath deposition (CBD-ZnO). The deposition conditions, i.e. the pH and the temperature of the bath, have been adjusted to achieve the deposition of porous, but adherent, thin films. After annealing in air half an hour at 300 °C ZnO films crystallized in the hexagonal struc…
A new method for transforming wood structures into ceramic by carbothermal reduction of silica and carbonized wood has been developed. Application of this technique allows the preservation of wood microstructures in the ceramic state and the conversion of wood components without constraints in component size. The chos…
Abstract Summary: The use of hyperbranched polymers (HBP) with hydroxy functionality as modifiers for poly( L ‐lactic acid) (PLLA)‐flax fiber composites is presented. HBP concentrations were varied from 0 to 50% v/v and the static and dynamic tensile properties were investigated along with interlaminar fracture toughn…
Abstract Summary: A phenolic group containing hyperbranched polyester (HBP) was synthesized and employed as chain transfer agent in cationic photopolymerization of a biscycloaliphatic epoxy monomer ( CE ). The epoxy group conversion increases by increasing the amount of HBP in the photocurable resin, due to a chain tr…
Nimbidin is a mixture of tetranortriterpenes and is the major active principle of the seed oil of Azadirachta indica A. Juss (Meliaceae) possessing potent antiinflammatory and antiarthritic activities. The present study revealed that nimbidin significantly inhibited some of the functions of macrophages and neutrophils…
The whole polyhydroxyalkanoate (PHA) synthesis gene locus of Pseudomonas stutzeri strain 1317 containing PHA synthase genes phaC1Ps, phaC2Ps and PHA depolymerase gene phaZPs was cloned using a PCR cloning strategy. The sequence analysis results of the phaC1Ps, phaC2Ps and phaZPs showed high homology to the correspondi…
Abstract Three different configurations of Au‐nanoparticle/CdS‐nanoparticle arrays are organized on Au/quartz electrodes for enhanced photocurrent generation. In one configuration, Au‐nanoparticles are covalently linked to the electrode and the CdS‐nanoparticles are covalently linked to the bare Au‐nanoparticle assemb…
This paper reports the development of a mathematical model of moisture and heat transfer coupled with phase change materials (PCM) in porous textiles. On the basis of a finite volume difference scheme, the thermal buffering effect of PCM is simulated. The distributions of temperature and moisture concentration in poro…
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 Hideki Yamane, Kosuke Sasai, Masayuki Takano, Masaoki Takahashi; Poly(D-lactic acid) as a rheolog…
Dense fine‐grained B 4 C was synthesized by the spark plasma sintering (SPS) method using mechanically activated elemental powders. Relative densities of up to 95% were achieved. When characterized by X‐ray line broadening methods, the grains of the resulting product were determined to be nanometric in scale. However,…
Sir, Nephrogenic fibrosing dermopathy (NFD) is a recently described entity. Cowper et al. described the first series of 14 patients and coined the term NFD.1, 2 Since the original description, 10 additional cases have been reported,3–6 one of them having systemic involvement. The aetiology and pathogenesis of NFD are…
Absorption of pulsed laser light energy at the plasmon resonant wavelength of silica−gold core−shell nanoparticles results in a reshaping of the nanoparticle's metal shell layer. Dramatically distinct and reproducible changes in nanoparticle morphology occur as a function of laser pulse width in the femtosecond versus…
Epilithic, epiphytic and epipelic diatoms were sampled at four sampling stations monthly from June to October in three boreal rivers in South Finland to examine the seasonal community persistence and stability of diatom communities in three habitats. The variation of successive samples in ordination space using Non-Me…
Abstract FT‐Raman and FT‐IR spectroscopy and Raman microscopy were employed to identify the structural characteristics of one amorphous and three crystalline phases of nifedipine, a common antihypertension drug of the 1,4‐dihydropyridine family. A significant fraction of the nifedipine molecules in the glass are found…
Abstract Summary: A binary blend of poly ( L ‐lactide) (PLLA) and poly( ε ‐caprolactone) (PCL) of composition 70:30 by weight was prepared using a twin screw miniextruder and investigated by differential scanning calorimetry (DSC), optical microscopy and scanning electron microscopy (SEM). Ternary 70:30:2 blends were…
The effects of composition distribution on microphase-separated structures formed by monodisperse BAB triblock copolymers were investigated. Monodisperse nine parent BAB triblock copolymers consisting of polystyrene for A and poly(2-vinylpyridine) for B were prepared by anionic living polymerization. These nine copoly…
Abstract In-situ synchrotron wide-angle X-ray diffraction (WAXD) studies and simultaneous measurements of stress and strain during uniaxial stretching of various vulcanized rubbers were carried out (at room temperature and 0°C) to reveal the strain-induced molecular orientation and crystallization relationships. Rubbe…
Article Metallographische Gefügeuntersuchungen von Magnesiumlegierungen / The Metallographical Examination of Magnesium Alloys was published on May 1, 2004 in the journal Practical Metallography (volume 41, issue 5).
We have investigated the intrinsic defects in ZnO films grown by molecular beam epitaxy by annealing them in O 2 and N 2 atmosphere. We found that there is a good correlation between the annealing condition and photoluminescence characteristics. The results of annealing experiments suggest that the photoluminescence a…
Abstract Hybrid compounds consisting of an organic sensitizer and a polyoxometalate unit were synthesized following two strategies: a) the covalent functionalization of lacunary decatungstosilicate with organosilylfulleropyrrolidines; b) the charge interaction between cationic sensitizers and the polyoxoanions, yieldi…