We report here structural and superconducting properties of Bi1.7Pb0.3Sr2Ca YxCu2Oy superconductors with various x values (x= 0.00, x = 0.15). It is found that addition of Y3+ does not influence the phase purity of Bi: 2212, while lattice parameters are affected. Furthermore, the...
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Research Article10.9734/AJOPACS/2017/36590
Honey is a natural complex food product produced by bees from nectar of plants and from honeydew. It is a unique sweetening agent that can be used by humans without processing. The study is based on the determination and analysis of the electrical conductivity of this natural pro...
Open access
Research Article10.9734/AJOPACS/2017/37031
A study of the effect of collimator thickness on the build-up factor value for the γ-radiation source has been conducted. The γ-radiation source used is from Cesium-137. The materials used in this research are concrete and wood, each of which was divided into 6 cm and 9 cm thickn...
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Research Article10.9734/AJOPACS/2017/34467
Aims: To extract pesticide residues in some edible crops and soils from farm lands so as to determine their concentration in order to assess their safety status Study Design: Solid-Phase extraction technique was used to extract pesticides content mainly of organochlorine class fr...
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Research Article10.9734/AJOPACS/2017/35001
This paper is devoted to a review of the widespread practice of the combustion processes description using the so-called classical combustion theory equations without proper clarification of the real kinetics mechanisms of physical processes under consideration. The «vitality» of...
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Research Article10.9734/AJOPACS/2017/36523
We presented here the fluctuation induced excess conductivity in Bi1.7Pb0.3Sr2Ca2-xYxCu3Oy superconductors with various x values (0.00 < x < 0.50). The logarithmic plots of excess conductivity (∆σ) and reduced temperature (ε) reveal three different values of the order param...
Open access
Research Article10.9734/AJOPACS/2017/36244
A flow model of blood in a normal bifurcating artery is presented. The models of the problem are solved using the regular perturbation series expansion. Solutions of the temperature, concentration, velocity, Nuselt number, Sherwood number and skin friction are realized, and prese...
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Research Article10.9734/AJOPACS/2017/35528
Aims: The main aim of this work is to synthesize the silica glass (SiO2-glass) samples doped with different rare earths (RE) and then to study the thermoluminescence (TL) glow curve of these samples. Study Design: Rare earth doped samples namely silica glass (SiO2-glass) are synt...
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Research Article10.9734/AJOPACS/2017/36403
The major sources of drinking water of the residents of rural settlements in Owo Local Government area are either uncovered wells or streams which are also used as latrines and dumpsites. This coupled with the acute poverty and abysmal sanitary practices of persons living across...
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Research Article10.9734/AJOPACS/2017/36388
The physicochemical parameters for groundwater within the vicinity of an abandoned automobile battery company were assessed to determine the water qualities. Water samples were collected from the nine hand-dug wells from the adjascent settlement for analysis of 12 parameters and...
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Research Article10.9734/AJOPACS/2017/36293
Zinc Oxide nanoparticles were green synthesized by Opuntia ficus indica fruit aqueous extract. The phytochemicals present in the plant extract act as reducing and stabilizing agents. SEM and UV-Vis spectroscopy were used to study the surface morphology and optical properties. Lig...
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Research Article10.9734/AJOPACS/2017/35917
We notice real SUSY Hamiltonians have multiple equivalent complex Hamiltonians which may be (i) PTinvariant (ii) T invariant or (iii) combination of both in nature. These three types of complex Hamiltonians give the same energy spectrum . We present here analytical results for th...
Open access
Research Article10.9734/AJOPACS/2017/35903
Extraction of electricity from the salinity gradient of sea water-river water interface has drawn the key interest of sustainable energy researchers. Different technologies are in the spot light − such as pressure retarded osmosis, reverse electrodialysis, ionic diode membrane, m...
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Research Article10.9734/AJOPACS/2017/35103
A new NLO crystal, glycinium para-toluenesulfonate (GPTS) is synthesized. The FT-IR study substantiated the formation of anion and cation by proton shift from para-toluenesulfonic acid (PTSA) to glycine resulting in adduct formation. Meyer’s index shows that GPTS belongs to soft...
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Research Article10.9734/AJOPACS/2017/35916
Aims: Study of thermoluminescence (TL) characteristics of natural quartz and synthesized quartz (silica glass synthesized by sol-gel technique) was investigated. Study Design: Studies TL properties of both types samples with different annealing temperatures, heating rates and dos...
Open access
Research Article10.9734/AJOPACS/2017/35542