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Volume 4 Issue 1 (January 2017)

S.No. Title & Authors Page No View
1

Title : The influence of the thickness of the Cds emitter layer on the performance of a CIGS solar cell with acceptor defects

Authors : Demba Diallo, Alain Kassine Ehemba, Amsata Ndiaye, Mouhamadou Mamour Soce, Moustapha Dieng

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Abstract :

In this work, we simulated a solar cell based on CIGS with simple default acceptor, using software (SCAPS) version 3.302 in order to study certain parameters. In particular, we have varied the thickness of the CdS emitter (0.05 μm, 0.04 μm and 0.03 μm) to study its influence on the performance of the cell. We were able to record that the energy efficiency increased from 16.50% for a thickness of 0.05 μm of the emitter to 16.87% for a thickness of 0.03 μm of the emitter. We also noted an improvement in other parameters, such as the form factor from FF = 79.81% to 80.10%, with the decrease in the thickness of the CdS. And from the Nyquist diagram, we also determined parameters like the series resistance to get an idea on the equivalent electrical circuit of the studied cell.

1-4
2

Title : Genetic Algorithm-Based Movement Patterns for Scrolling-Shooter Games

Authors : Chang-Hoon Park, Jinseok Seo

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Abstract :

One of the exciting elements of scrolling-shooter games is finding the movement pattern of enemies, and predicting the direction in which they will move to eliminate them.  However, if players identify all the movement patterns of the enemies, they will easily lose interest in game play.  In the end, in today’s game ecosystem, which has a very short life-cycle, players who feel weary will look for new games.  To address this problem, this paper presents a genetic algorithm based technique for dynamically generating movement patterns of enemy aircrafts.  The proposed method evolves the movement patterns designed by a game designer in the early stage to the more complex form of movement according to the player 's ability and vice versa.

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3

Title : Review on Paper Waste Sludge and Feasibility of It and Its Components to Be Recycled in Polymer-Based Composites

Authors : Agne Kairyte

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Abstract :

Intervention into current building industry is the main strategy of European Commissions in order to achieve one of the targeted aims for sustainable development – to reduce the emission of greenhouse gases by 20% until 2020 and by 80% until 2050. Increasing requirements for building energy performance, which cover not only the improvement of thermal insulating properties of building materials but also the input of materials production and installation, force the sector of building materials to search for energetically efficient materials. The use waste is the most promising alternative for the production of building materials and their composites. This paper analysis one of the greatest waste – paper waste sludge, its physical and chemical composition, and feasibility to be recycled in building materials. The detailed review of paper waste sludge components – calcium carbonate, kaolinite and silica utilization for the production of polymer-based composites is presented.

10-13
4

Title : Numerical Investigation of Impulse Ventilation System in Underground Car Park

Authors : Aykut Bacak

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Abstract :

In this paper smoke control capacity of impulse ventilation system (IVS) was examined in an underground car park with three different fire positions. An analysis is results are related with jet fan thrust, fresh air and exhaust flow rates, size of fire and fire positions. Flow rates of both fresh air and smoke exhaust fans and jet fan placement is indicated before CFD analysis. Fire Dynamic Simulator 6.1.2 is applied to 115 m long, 57 m wide and 3.5 m height domain with simulating car fire whose peak heat release rate (HRR) is 4 MW resulted from burning propane as a fuel in which scoot yield 0.024 kg soot/ kg fuel for three different locations. Velocity, temperature, visibility and CO results obtained by CFD method show that they completely met with indicated standard assumptions.

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5

Title : The Nonlinear Mathematical Model of The Physical Body Under Variable Loading in Neutron Flux

Authors :

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Abstract :

The influence of neutron irradiation upon (nonlinear physical) elastoplastic deformation of components of constructions under cyclic force disturbance is considered. As an example the problem of cyclic irradiation-force winding consider  unsymmetrical with respect to thickness sandwich beam with external bearing layers made of metal and incompressible with respect to thickness internal layer (filler) made of polymer. Well effects resulting in appearance of additional volume deformation. Furthermore the differences used during the numerical solving reflects of the nature of  the physical structure of body under influence the flux. On basis of experimental data the formula of irradiation reinforcement is suggested. The result may be extended in case of any given n-cyclic loading  The theorem about variable loading is proved. Theorem about cyclic loadings of elastoplastic body in neutron flux allows to simplify essentially a whole class of boundary problems. Numerical solving for sandwich nonlinearly beam is adduced.

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