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Publisher AIJR Publisher

294 articles
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Praveesh Bhati, Ritu Nagar, Anurag Titov
Published: 10 February 2019
International Annals of Science, Volume 7, pp 6-11; doi:10.21467/ias.7.1.6-11

Abstract:The decay of leaf litter by microflora and fauna furnish nutrient supply to the soil and also uphold ecological sustainability. Applying of proper technique and exploring of result provides information for the betterment of agricultural system. Vermicomposting of Sandalwood (Santalum album) leaf litters were studied with an emphasis of physio-chemical deviation during the process and also compared with 100 % cattle dung. Obtained result explore that temperate of 50 % leaf litter (LL) and 100 % cattle dung (CD) was slightly elevated (37ºC ±1 ºC and 35ºC ±1 ºC respectively) at beginning phase and later came down to ambient level (20ºC±1 ºC). The total organic carbon (TOC) exhausted 44 % in 50 % LL Vermicomposting mixture while 70 % in 100 % CD during the process. At the final stage, TOC found more in 50% LL as compared to 100% CD. Nitrogen content was found 1.02±0.1 in 50 % LL and 0.88±0.1 in 100 % CD at the initial phase but after completion of Vermicomposting, their level was increased up to 40 to 44 %. pH was also measured during vermicomposting and found 7.2±0.1 in 50% LL while 8.4±0.1 in 100% CD at the initial phase. The at the end of process pH raised and set up to 8.2 ±0.1 in 50% LL while in 100% CD it was found 8.0 ±0.1.
Olufunso Omowunmi Adeniyi, Oluwole Sesan Ariwoola
Published: 27 January 2019
International Annals of Science, Volume 7, pp 1-5; doi:10.21467/ias.7.1.1-5

Gashaw Beyene Kassahun
Published: 12 January 2019
Advanced Nano Research, Volume 2, pp 1-13; doi:10.21467/anr.2.1.1-13

Abstract:This theoretical work presents a comparative study of high tunability size dependent optical properties of quantum dot/wire triple layered core shell nanostructure based on the quasi-static approximation of classical electrodynamics embedded in a fixed dielectrics function of host matrix. In this paper, local field enhancement factor (LFEF), refractive index and optical absorbance of nanocomposite are analyzed by varying core size, thickness of spacer and shell as well as dielectrics function of the spacer for the size of the nanocomposite with the range of 20 nm to 40 nm. For both quantum dot and quantum wire triple layered core shell nanostructure (CSNS), there are two resonances in visible and near/in infrared spectral region with high tunability. When the shell thickness increase and therefore increasing the gold content, the surface plasmon resonance (SPR) at the outer interface shifts to higher energy (blue-shifted) and at the inner interface weak peaks and shifted to lower energy (red-shifted). All of three optical properties, depend on core size, dielectrics and thickess of spacer, thickness of shell, shape of composite and filling factor. For the same thickness of spacer and shell of the two configurations, cylindrical triple layered CSNS less pronounced and shifted to infrared red (IR) spectral region which is recommendable for biological and photocatalysis application.
Journal of Modeling and Simulation of Materials; doi:10.21467/jmsm

Dasari Kondala Rao, Srinivas Kolla, C Tara Sasanka, D Sameer Kumar
Journal of Modeling and Simulation of Materials, Volume 1, pp 30-38; doi:10.21467/jmsm.1.1.30-38

Abstract:This study presents the combined effect of inclination and internal fins on the melting rate of PCM in a rectangular enclosure (8.89cm×6.35cm). The rectangular enclosure has a hot wall with a temperature of 311K, a cold wall with a temperature of 301.3K and the other two walls are insulated. Gallium with very low Prandtl number is taken as the PCM in this study. First, the individual effects of different inclinations (0⁰, 45⁰ and 90⁰) of the enclosure on melting rate of PCM are studied followed by the study of the effect of internal fins. Then we provide a combined environment of inclination and partial fins and obtain the results of liquid fraction, velocity contours and temperature distributions. Plots for the liquid fraction and average temperatures with respect to time are also obtained. Finally, the results and plots of the combined effect are compared with those of other conditions. From the comparison, we conclude that the combined effect of inclination and partial fins under constant normal gravity condition greatly enhances the heat transfer in PCM.
Akshay Kumar, H K Rangavittal
Advanced Journal of Graduate Research, Volume 5, pp 61-70; doi:10.21467/ajgr.5.1.61-70

Abstract:The Genetic Algorithm is one of the advanced optimization techniques frequently used for solving complex problems in the research field, and there are plenty of parameters which affect the outcome of the GA. In this study, a 25-bar truss with the nonlinear constraint is chosen with the objective to minimize the mass and variables being the discrete area. For the same, GA parameter like Selection Function, Population Size, Crossover Function, and Creation Function are varied to find the best combination with minimum function evaluation. It is found that the Uniform selection gives the best result irrespective of the creation function, population size or crossover functions. But this is at the cost of a large number of function evaluations, and the other selection function fails to reach the global optimum and has a smaller number of function evaluation count. If the analysis of selection function is done one at a time, it is seen that all Cases performs better in Roulette but, Case A which is non-integer type with 200 population size being computationally cheaper than Case B and C of population size 300. In the Tournament selection, Case A, B with smaller population size and Case C with higher population size performs better. Case C performs better at Remainder selection with smaller population size, and Case A and B for Stochastic Uniform with higher population size. And, it is clear that the function evaluation count increases with the population size in every Case from this study.
Abdualraouf Mohamed, Mohamed Ali Milad
Proceedings of First Conference for Engineering Sciences and Technology: Vol. 2; doi:10.21467/proceedings.4.4

Bashir M Aburawi
Proceedings of First Conference for Engineering Sciences and Technology: Vol. 2; doi:10.21467/proceedings.4.6

Ghassan S El-Masry, Mustafa El-Musbahi, Benur Maatug
Proceedings of First Conference for Engineering Sciences and Technology: Vol. 2; doi:10.21467/proceedings.4.2

Proceedings of First Conference for Engineering Sciences and Technology: Vol. 2; doi:10.21467/proceedings.4

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