Materials Literature
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A ferromagnetic shape memory alloy of Ni48Mn30Ga22 prepared by induction melting was successfully hot forged. Strong textures and a large anisotropy of in plane plastic flow were developed during the hot forging process. The crystal structures, both in austenitic and martensitic states, were investigated by means of n…
The present study reports static and impact mechanical properties of jute fibre-based thermosetting composites using woven and flat braided jute fabrics. Tensile, three-point flexural and low-to-medium energy drop-weight impact tests were conducted and mechanical properties were evaluated to study their dependence upo…
Abstract X-ray diffractograms of tris(bicyclo[2.1.1]hexeno)benzene, crystallized at the interface between a benzene solution and a layer of acetonitrile, show hexagonal symmetry and streaks of diffuse scattering along c *. The heavily faulted layer stacking is analyzed qualitatively and quantitatively in terms of a sy…
A sol of amorphous aluminum orthophosphate (AlPO 4 ) nano particles (30–100 nm) was synthesized by co‐precipitation of Al 3+ and HPO 4 2− with urea at 95°C. A narrow particle size distribution was achieved when [Al 3+ ]≤0.1 M . The isoelectric point of the synthesized powder is pH∼4.7. Alumina/mullite fibers (Nextel™…
The controlled production of arrays of nanowires exhibiting outstanding characteristics is recently attracting much interest owing to their applications in a number of emerging technologies related with multifunctional biosensor applications, controlled optomagnetic response, magnetic storage, magnetotransport, or cat…
Three-dimensional steady and oscillatory flows are simulated in a vertical cylinder partially heated from the side. The vertical wall is heated in a zone at midheight and is insulated above and below this middle zone, while both ends of the cylinder are cooled. The cylinder aspect ratio (A=height∕radius) ranges from 2…
A two-dimensional-corrugated-slab-waveguide add/drop filter providing 100% resonant reflection at 1.55 microm wavelength for both TE and TM polarizations with identical FWHM is designed. The fabricated device exhibits a reflectivity spectrum of more than 95% peak reflection for both polarizations at 1.537 microm. The…
Os objetivos deste trabalho foram desenvolver filmes à base de pectina de baixo teor de esterificação, amidada, com adição dos ácidos graxos láurico (AL), palmítico (AP) e esteárico (AE) e caracterizá-los quanto às propriedades de permeabilidade ao vapor de água (PVA) e ao oxigênio, propriedades mecânicas (tensão de r…
XPS measurements of poly(ethylene oxide) recorded with a SSX-100 spectrometer in standardized experimental conditions are presented: survey scan, high resolution core level spectra as well as the energy loss regions of carbon and oxygen peaks are analyzed. This is part of a contract work aiming to record spectra in th…
XPS measurements of poly(ether ether ketone) recorded with a SSX-100 spectrometer in standardized experimental conditions are presented: survey scan, high resolution core level spectra as well as the energy loss regions of carbon and oxygen peaks are analyzed. This is part of a contract work aiming to record spectra i…
XPS measurements of poly(vinyl alcohol) recorded with a SSX-100 spectrometer in standardized experimental conditions are presented: survey scan, high resolution core level spectra as well as the energy loss regions of carbon and oxygen peaks are analyzed. This is part of a contract work aiming to record spectra in the…
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…