Materials Literature
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We prepared polyhydroxybutyrate/valerate (PHBV)/polylcaprolactone (PCL) small-diameter vascular grafts using electrospinning. Surface structure was assessed by scanning electron microscopy whilst physicomechanical properties were investigated by longitudinal uniaxial tension testing. Patency of grafts implanted into t…
The present study is the first propose use of secondary melt-processing, in which polyamide 6 (PA6) were successfully dispersed in Polyoxymethylene (POM) and POM/PA6 blends were prepared carried with POM. The effect of PA6 on crystallization nucleation behavior and mechanical properties of POM have been studied. PA6 h…
An explicit three-dimensional (3D) finite element (FE) code is developed for the simulation of high velocity impact and fragmentation events. The rate sensitive microplane material model, which accounts for large deformations and rate effects, is used as a constitutive law. In the code large deformation frictional con…
Along with the rapid growth of nanoparticle consumption in various industries, concerns about the unknown effects caused by the presence of these materials in the natural environment and agricultural systems are being highlighted. Due to the growing trend of Nano Zinc Oxide Nanoparticle (ZnO-np) which is one of the mo…
This paper presents the results of a numerical calculation of beryllium poisoning of an IRT-T reactor and its effect on the excess reactivity and neutron flux density in the beam ports. Also, the prediction of 6 Li and 3 He poison concentrations in the beryllium reflectors of the IRT-T reactor is presented. The result…
The SNCR De-NO x system is an effective denitration technology for MSW incinerator. In this paper, an economic parameter-S: per unit NO x removal cost was established. The results clearly showed that parameter S has a significant change at different loads. The 90% load had the lowest per unit NO x removal cost which w…
Poly(3,4-ethylenedioxythiophen-yl-methoxy acetyl L-proline methyl ester), a L-proline methyl ester functionalised poly (3,4- ethylenedioxythiophene) derivative (PEDOT-L-ProMe), was synthesised electrochemically via the potentiostatic polymerisation. The monomer was synthesised by an efficient three-step sequence using…
The magnetron sputtered La0.7Sr0.3MnO3 films were implanted with different doses (5 ′ 1015 ions×cm?2 and 5 ′ 1016 ions×cm-2) of Al ions at different negative pulsed voltages (30 kV and 50 kV) by plasma based ion implantation and then annealed at 973 K for 1 h in air. The microstructure, surface morphologies, surface r…
Gamma-ray spectrometry is a very powerful tool for radioactivity measurements. The gamma-ray spectrometer laboratory in Centre for Energy Research and Training (CERT), Ahmadu Bello University, Zaria, Nigeria is accredited to perform measurements of radioactive content of samples collected from the environment, food ch…
In aluminium reduction cells, the profile of a new carbon anode changes with time before reaching a steady state shape, since the anode consumption rate, depending on the current density normal to anode surfaces, varies from one region to another. In this paper, a two-dimension model based on Laplace equation and Tafe…
By the known shock wave pressure curve, the shock wave of the underwater explosion was simulated loading on a specific target, the stress of the surface of the target, pressure value changes at a point as well as the characteristics response of the target. Through the simulation on the role of near-field characteristi…
A space experiment on the crystallization of lisozyme and glucose isomerase proteins in UK-1 and UK-2 crystallizers on the scientific equipment BELKA on the Bion-M no. 1 spacecraft was performed in April–May 2013. A ground-based experiment was carried out simultaneously at the Institute of Crystallography of the Russi…
Alkoxide-derived lanthanum aluminate (LaAlO3: LAO) nanoparticles were obtained at 1023 K. Experimental process parameters such as the starting reagents and the process temperature were optimized to obtain LAO with a large surface area. Consequently, LAO with 29 m2/g was attained at 1073 K. This surface area was approx…
The reaction studied in this work is the synthesis of nanometric size calcium carbonate by carbonation of a suspension of lime, which represents the most common industrial route. The carbonation was proceeded in a pilot batch reactor. This article presents a method for the determination of nucleation and crystal growt…
This study was aimed to obtain conductive cotton fabric surfaces by chemical oxidative polymerization of pyrrole monomer. For this purpose, iron (III) chloride was used as oxidant, and an aliphatic polyether with acidic groups was used as anionic surfactant respectively. Polypyrrole formation on cotton fabric surface…
Experimental investigations on lap welding of magnesium alloy to steel using resistance spot welding with Cu-Zn alloy interlayer are carried out. The effect of welding time, welding current and interlayer thickness on the bonding mode of interface and joint strength has been investigated using mechanical testing and m…
The electrical properties of lead (Pb) nanopowder (metal) produced by “Direct Electrorefining” technique of secondary lead slag are investigated in this study. The morphology and shape of the nanostructure lead powder were examined using a scanning electron microscope (SEM). The particles size is confirmed using a tra…
The use of polymer/inorganic material composites as controlled drug delivery carriers can be promising in the future for the reason of their excellent mechanical properties, drug loading efficiency and controlled release behavior. To develop a controlled drug release carrier, mineralized self-assembled polymeric nanoc…
The magnetisation density of different iridium PNP pincer-type complexes depends on the chosen quantum chemistry method.
We propose and demonstrate Sodium Zinc Molybdenum Tellurite glasses (Na 2 O-ZnO-MoO 3 -TeO 2 or NZMT) as suitable hosts for rare earth ion Holmium (Ho 3+ ) operating at 1.2m and 1.37m wavelength. The density, the refractive indices, the optical absorption have been measured. The Judd-Ofelt intensity parameters 2, 4, 6…