Materials Literature
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A selection of cotton samples is tested with the Suter-Webb Array, AFIS (advanced fiber information system), and HVI (high volume instrument) methods. Short fiber contents as measured by these different methods show significant differences and high variations. The calibration level is one of the major factors causing…
This paper discusses how the composition and heat treatment affect the properties of the transparent ceramic Gd2O2S:Tb (Ce). The excitation spectra and the spectral composition of the emission and its temperature dependence have been studied, along with the thermally stimulated luminescence and the afterglow kinetics.…
Peirce's model is newly studied to predict the structural and mechanical properties of woven fabrics. The study concerns various fabric structures made from different yarns of cotton, wool, and polyester, and weave structures of plain, twill, satin, and mat. Weave structures and fabric relaxation cause changes in the…
Abstract SiC‐based fibres are complex systems of nanophases. Raman imaging of polished Tyranno SA3 fibre (UBE Industry) sections indicated that carbon species have different concentrations, natures and short‐range order on the fibre core and surface, which results from the production process. The monitoring of the fib…
The effect of the concentration of zinc hydroxy-stannate and zinc borate on the fire performance of rigid PVC formulations has been investigated. Fire testing was carried out using cone calorimetry as well as the limiting oxygen index (LOI) test. In addition, further testing was done to check that incorporation of the…
Dense Ti3SiC2 bulk ceramic was synthesised by hot pressing of elemental titanium, silicon, and carbon powders. The effects of starting composition of the powders on the synthesis of pure Ti3SiC2 were examined. Phase identification was carried out by X-ray diffraction. Silicon content in the starting composition played…
The article is a concise analysis of the author's group's systematic exploration of the scope and potential of a new general approach to the synthesis of sulfur-rich polyconjugated polymers by direct dehydrogenative sulfurization of common polymers (polyethylene, polyacetylene, polystyrene, polyvinylpyridine, polydiet…
A detailed experimental/theoretical study is conducted to explore the fundamental nature of individual cotton fibers via light-scattering experiments. For this purpose, a new precision nephelometer is built and calibrated with quartz fibers. In the experiments, iris opening (viewing angle) and scanning range and rate…
Thermoluminescence (TL) in various Cu+-doped materials is studied. A good correlation between the presence of copper in the Cu+ form and TL sensitivity is observed. Correlation between TL emission spectra and photoluminescence suggests that Cu+ acts as the emission center in the TL process. (© 2003 WILEY-VCH Verlag Gm…
Abstract An alloy of Cu–9at.%Al(111) has been oxidized in a low‐energy electron diffraction (LEED)/AES and a scanning AES instrument at elevated temperatures. Dosing with 1300 L of oxygen at 995 K gives rise to well‐ordered oxide layer formation on the Cu–9at.%Al alloy. The structure of the ordered oxide confirmed by…
In magnetically controlled shape memory (MSM) materials deformation can be controlled by magnetic field. It is shown that the magnetic field induced strain is directly connected with the twinning stress, i.e. mechanical stress needed to transform the sample to single variant state. In cases where the magnetically-indu…
Abstract Chitosan was partially N ‐acylated by treatment with n ‐fatty acid anhydrides in a homogeneous solution in 2 vol.‐% aqueous acetic acid‐methanol (1:2 v/v). The degree of substitution (d.s.) for N ‐acyl groups in the water‐soluble N ‐acylchitosan derivatives was in the range of 0.42–0.82 for N ‐acetyl, 0.37–0.…
A novel Polyacrylamide superparamagnetic iron oxide nanoparticle platform is described which has been synthetically prepared such that multiple crystals of iron oxide are encapsulated within a single Polyacrylamide matrix ( Poly Acrylamide Magnetic [PAM] nanoparticles). This formulation provides for an extremely large…
Imazalil and ethylenediamine-tetraacetic acid (EDTA) were incorporated into low-density polyethylene (LDPE) aimed at producing antimicrobial packaging films for foodstuffs. Moulded plates (thickness 2mm) containing 5% of EDTA inhibited Bacillus subtilis, whereas 0.05–0.25% of imazalil had strong activity against Asper…
Abstract The aim of this work is to study the structure‐properties relationship of rigid and plasticized PVC/PMMA blends. For that purpose, blends of variable compositions were prepared in the absence and in the presence of a plasticizer di (ethyl‐2 hexyl) phtalate or DEHP. The miscibility of the two polymers was inve…
Ni 49.7 Mn 29.1 Ga 21.2 magnetic shape memory sample showing magnetic-field-induced strain of 5.7 % in the magnetic field 0.5 T was studied at different conditions during austenite-martensite and martensite-austenite transformations. Transformation temperatures T A = 317 K, T M = 308 K were determined by AC susceptibi…
PURPOSE: We evaluated the efficacy of nephrectomy for the management of nephrogenic hypertension in children. MATERIALS AND METHODS: We retrospectively reviewed the records of 320 children who underwent nephrectomy between 1991 and 2001, and 22 underwent nephrectomy for the management of hypertension. Of the 22 patien…
Abstract Cerium(IV) mediated grafting of polyacrylonitrile on to guar gum was studied. Grafting parameters were studied gravimetrically, as a function of temperature, initiator concentration and Guar to acrylonitrile ratio. Higher temperatures resulted in higher monomer conversion and homopolymer formation. Both monom…
Rings and a few other things: A method for the preparation of uniform mesoscopic titanium dioxide rings that are bound in a periodic array on a substrate, linked to a free-standing membrane, or are dispersed as individual particles (see SEM image) is presented. The technique is based on the selective wetting of the in…
The goal of the present study was to investigate HER-2-targeted boron-containing liposomes as a potential drug delivery vehicle for boron neutron capture therapy (BNCT). Trastuzumab was conjugated to the distal end of PEG-DSPE-NHS in micelles and the Trastuzumab-PEG-DSPE were then transferred to preformed liposomes, e…