Materials Literature
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BEA zeolite has been simultaneously detemplated and Fe-exchanged by treating the parent zeolite with a Fenton's-type reagent (Fe3+-H2O2) at low temperature. This one-pot process simplifies and speeds up considerably the preparation route. The catalyst shows excellent performance on N2O decomposition compared to conven…
This paper describes an experimental study on the behavior of concrete panels with steel plate subjected to missile impact.Two tests were carried out, divided in accordance with the types of projectile, non-deformable and deformable.In all, 40 specimens of 750mm square were prepared.The panel specimen was suspended ve…
Summary: Vehicle collisions can be considered as a highly dynamic deformation process, where structural steel deforms under different strain rates. Therefore, an appropriate material model, which takes rate affects into account, has to be chosen for a good numerical model. In this study, five different strain-rate sen…
Recently developed monitoring-systems show the need as also the possibilities for online- and offline-onsite-diagnostics. The limit in sensitivity for electrical pd-measurements according to IEC 60270 which is reached using filters for sinusoidal disturbances and compensation for corona impulses is still not satisfact…
Engineering functional three-dimensional (3-D) tissue constructs for the replacement and/or repair of damaged native tissues using cells and scaffolds is one of the ultimate goals of tissue engineering. In this study, non-woven fibrous scaffolds were electrospun from the synthetic biodegradable polymer poly(lactic-co-…
In this study, a thermal protective performance (TPP) test was applied for thermal analysis. The thermal analysis by the TPP test was carried out on the single layer-fabrics and their assemblies in two- and three-layerconstructions. The thermal protective performance rat- ings of these constructions and each single ou…
A new and unique measuring system is presented for the online acquisition and analysis of partial discharges (PD-s) in medium-voltage power cables. The system is able to locate the origin(s) of PD-s by using two inductive sensors, each at one cable end. The measuring system is called PDOL, which stands for PD detectio…
This study reports on the supercritical carbon dioxide (scCO2) foaming of rubber toughened heterocyclic methacrylates for potential applications as non-degradable scaffolds in tissue repair and engineering. Porous blends of styrene–isoprene–styrene copolymer elastomer (SIS) and tetrahydrofurfuryl methacrylate (THFMA)…
Thin films of aligned supramolecular architectures built from newly synthesized thiophene-substituted porphyrins have been processed from solution on surfaces.
Partial discharge degradation of an epoxy nanocomposite with 5 weight % additions of nanoscale TiO/sub 2/ particles was investigated in comparison with that of an epoxy resin without nanofillers. Such materials were subjected to PDs under the IEC(b) electrode configuration for evaluation. Surface roughened by PD attac…
We provide the first electrochemical evidence of permeability changes in continuous mesoporous TiO2 thin film electrodes induced by nanocrystallisation.
Polyester fabric was dyed with CI Disperse Blue 79 in supercritical carbon dioxide and the effect of temperature and dyeing time on dye uptake was studied. On raising the temperature at constant pressure the dye uptake gradually increased, reaching equilibrium after 60 min. The diffusion coefficient at different tempe…
Adhesive technology has improved enormously in the few past decades, so adhesive point-bonding of spunbond fabrics has been given a fresh look to ascertain whether thermal point-bonding may have a new challenge. Finite element analysis is implemented to develop a simple truss-based model capable of predicting the tens…
Rheological properties of poly(ethylene oxide)/poly(vinylidenefluoride)-(hexafluoropropylene) immiscible polymer blends were studied in the low frequency domain. According to the blend composition, two critical compositions were determined by rheology. These compositions exhibit a power law relaxation spectrum with a…
Reactions of Schiff bases with copper(II), nickel(II), iron(II) and manganese(II) sources yielded tetranuclear complexes of [Cu4(Hhsae)4] · 2H2O·4CH3CN (1), [Ni4(sae)4(MeOH)4] (2), [Fe4(Hsapd)4]·2H2O·4MeOH (3) and [Mn4(sap)4(MeOH)4]·H2O (4), (H3hsae=2-(4-hydroxysalicylideneamino)-1-ethanol, H2sae=2-salicylideneamino-1…
Biomolecular interactions are used to programme the assembly of multi-layer, multi-functional CNT-based conjugates.
Mn2+-doped GeO2–B2O3–ZnO (GBZ) glasses were investigated and developed as long-lasting phosphorescence host materials. Transparent glass-ceramics were obtained after heat-treated at the first crystallization temperature for 20 min. By X-ray diffraction measurement and SEM observation, it is clarified that Zn2GeO4 crys…
This study investigated some of the important properties of single-layer particleboard panels made from bamboo (Dendrocalamus asper), rice straw, eucalyptus (Eucalyptus camaldulensis), or combinations of them. A total of 40 experimental panels were manufactured from each material type. Panels were also made using a 50…
Local environments of rare earth ions are studied in a rare earth rich glass (Glass A wt%: 51.0SiO 2 -8.5B 2 O 3 -12.2Na 2 O-4.3Al 2 O 3 -4.8CaO-3.2ZrO 2 -16.0RE 2 O 3 with RE=Nd or La) developed for radioactive waste immobilisation. The aim is to determine the structural environment of rare earths in this glass accor…
The underlying physics of the application of low-temperature, low-pressure reactive plasmas in various nanoassembly processes is described. From the viewpoint of the "cause and effect" approach, this Colloquium focuses on the benefits and challenges of using plasma-based systems in nanofabrication of nanostructured si…