Materials Literature
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Uses of natural fibers as reinforcement in polymers have gained importance in the recent years due to the eco-friendly nature. This paper deals with the mechanical properties of the composites made up of palmyra fiber waste [pfw] and the pfw/glass fiber hybrid composites. Composite plates were prepared with 30%, 38%,…
Abstract From leaching experiments with metallic uranium-aluminium material test reactor fuel elements in repository-relevant MgCl 2 -rich salt brines, a Mg-Al-layered double hydroxide with chloride as interlayer anion was identified as a crystalline secondary phase component. In the present study, this Mg-Al-Cl-layer…
The propagation of a pressure wave in an initially quiescent bubbly liquid of relatively high void fraction contained in a two-dimensional (2D) or three-dimensional (3D) rectangular domain is investigated by direct numerical simulations of the Navier-Stokes equations using a front-tracking/finite-volume method. The ga…
Abstract The “tilted film” transmission infrared spectroscopy method was used to characterize the biaxial orientation in a set of blown films containing polypropylene (PP), layered silicate nano‐reinforcement, and two different compatibilizing agents based on maleic‐anhydride‐grafted PP. Both interactive spectral subt…
Abstract Experiments were conducted with an electrodynamic levitation system to study the kinetics of droplet evaporation under chemically rich conditions. Single solution droplets of known composition (HNO3/H2O or H2SO4/HNO3/H2O) were introduced into an environmentally controlled cubic levitation cell. The gaseous en…
Abstract Solution polymerization of ε‐caprolactone (ε‐CL) was performed using four different initiators namely: tin(II) octanoate (Sn(Oct) 2 )/ethanolamine, aluminium Schiff's base complex‐HAPENAlO i Pr, lithium diisopropyl amide (LDA) and aluminium isopropoxide. The reaction conditions varied with the initiator used.…
Glioblastoma multiform (GBM) is the most common tumour of the central nervous system in humans. Unfortunately its prognosis is poor and because of the lack of efficacious therapies, immunotherapy is a potential treatment. Transfer factors (TF) are low molecular weight dialysable products extracted from immune cells wh…
Four types of organofunctionalized (by phenyl, 3-aminopropyl, 3-chloropropyl, and N-aminoethylaminopropyl, respectively) mesoporous silicates MCM-41 (hereafter R-MCM-41) have been successfully synthesized via the grafting method, the conventional templated sol-gel technology, and the original stepped templated sol-gel…
OBJECTIVE: To relate subjects' clothing sizes to waist circumference, body mass index (BMI) and to the risks of ischaemic heart disease, hypertension and diabetes mellitus, and to derive cut-off levels of clothing size that correspond to increased health risks. DESIGN: Cross-sectional study. Setting Glasgow Royal Infi…
We extracted silk produced by the larva of the hornet Vespa simillima xanthoptera Cameron from its nest. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis of the extracted hornet silk showed four major components with molecular weights between 35 and 60 kDa. The main amino acid components o…
The effects of peripheral substituents and axial ligands (L) on the electronic structure and properties of cobalt tetraphenylporphyrin (CoTPP) have been studied using DFT methods. Various density functionals were tested, and the ground state of each system was determined by considering several possible low-lying state…
Glutamate 5-kinase (G5K) catalyzes the controlling first step of the synthesis of the osmoprotective amino acid proline, which feed-back inhibits G5K. Microbial G5K generally consists of one amino acid kinase (AAK) and one PUA (named after pseudo uridine synthases and archaeosine-specific transglycosylases) domain. To…
Inter-time (i.e., the time that separates a PD event from the next one) distribution analysis has been recently proposed as a tool to infer the presence of trees in solid insulation systems. In this paper, inter-time distribution analysis is improved to infer more accurately trees at an early growth stage. Measurement…
Abstract The superior association of the inherent good mechanical and electrical properties makes carbon nanotubes (CNT) exceptionally interesting for the production of composite fibers of thermoplastic polymers with CNT. Alignment of the CNT in the polymer fiber is important for improved mechanical properties. Especi…
Shock-wave experiments are performed with four different kinds of glasses of different hardness compressed at different levels. The experiments with the glass specimens consisting of layered thin plates confirm the appearance of a failure wave in elastically compressed soda lime glass, heavy flint glass, K8 crown glas…
Polymer insulating materials are required for use in high altitude regions. For the use of polymer insulating materials in such regions, it must be confirmed whether the resistance to tracking at high altitudes is different from that at altitudes near the sea level. In this paper, an artificial atmospheric chamber was…
Using pulsed laser deposition (PLD), coaxial coating of carbon nanotubes (CNTs) with various inorganic materials (e.g., ZrOx,HfOx,AlOx,ZnOx, and Au) has been performed. The morphology and crystallinity of the coated layers were found to differ according to the materials used even at the same deposition temperature. Fo…
The self-synthesis of tungsten oxide (W 18 O 49 ) nanowires on sputter-deposited W films prepared under different O 2 /Ar flow rate ratios (OAFRRs) in the sputtering gas is reported. After thermally annealing at 700–850 °C in N 2 ambient for 15 min, dense and well crystalline W 18 O 49 (010) nanowires or nanobelts wer…
A large number of single-crystalline TaS2 nanobelts have been prepared via a two-step method. In this approach, TaS3 nanobelts as precursors were synthesized via chemical vapour transition (CVT), and pyrolysed into TaS2 nanobelts in vacuum. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM)…
Peer reviewed: No