IMPACT : International Journal of Research in Engineering & Technology

Number 5-5, 2017

1-12
UTILIZE MODEL APPROACH FOR SELF-TEST CODE AND OPTIMIZING COMPILERS

Authors: FAHADGHALIBABDULKADIM & SABAH KHUDAIRABBAS

Abstract

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Number of views: 416

The paper proposes the concept of automated construction of test suites and test oracles for testing optimizers. It uses an approach based on the generation of test patterns. The main ideas of the model approach are as follows: 1) modeling language implicitly breaks many programs target language into equivalence classes; 2) test coverage criterion is formulated in terms of the model of language; 3) in accordance with the selected set of test criteria is generated. In this paper, we describe a scheme for constructing a test oracle that checks the semantics preservation program after optimization.

13-32
BIOREMEDIATION OF LEAD, NICKEL AND COPPER BY METAL RESISTANT BACILLUS LICHENIFORMIS ISOLATED FROM MINING SITE: OPTIMIZATION OF OPERATING PARAMETERS UNDER LABORATORY CONDITIONS

Authors: AKSHATHA JAIN N, UDAYASHANKARA T H , K S LOKESH & SUDARSHAN B L

Abstract

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Number of views: 700

Biosorption has been considered as effective process of bioremediation for removal of heavy metals in an ecosystem. In this study, metal resistant bacterial strains were isolated from the soil sample rich in heavy metals like Lead (Pb), Nickel (Ni) and Copper (Cu). Isolates were evaluated for their metal resistant and degradation capacity for applicability in heavy metal removal from the soil. Based on this, one efficient gram positive strain has been characterized by 16S rDNA sequencing and identified as B. licheniformis. The effect of metals concentration of biomass and metal sorption efficiency was determined. The optimization study showed that, optimum pH for isolate is 6.0 for Pb, 6.5 for Cu and 7.0 for Ni absorption; optimum media components are 1% glucose, 100 ml of minimal salt solution and 1 g of nitrogen source per liter. The change on surface morphology of cell wall was studied by Transmission Electron Microscopy (TEM). Changes in Chemical functional groups on the surface of bacteria with metal absorption were studied by, Fourier Transform Infrared (FTIR) spectroscopy and crystalline nature by X-ray Diffraction (XRD). The bioreactor was designed and operated at optimized conditions with three different flow rates of medium and result showed the maximum sorption of Pb 86 ± 5% at 192 h, Ni 77 ± 8% at 240 h and Cu 80 ± 6% at 216 h.

33-40
TEACHER ACCEPTANCE AND INSTITUTIONAL FACTORS OF ICT IN SCHOOL EDUCATION FOR BETER LEARNING BY STUDENTS OF DELHI & NCR

Authors: SONIKA MARWAHA

Abstract

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Number of views: 449

The focus of this paper is to explore the ICT factors in school education, which have impact on implementation as well as the use of ICT in school education. Research objectives were framed and a theoretical model was developed that explains the factors, which may affect the implementation of ICT in Education. Working hypotheses were developed to evaluate the interrelationship between affecting factors and success. Empirical data were collected through a survey questionnaire from educators like School Teachers, principals and other supportive school staff, involved in education. The data gathered was analysed with frequency distribution of the responses, descriptive analysis and analysis of the mean score. The finding of the study highlights the importance and relationship gap between teachers' acceptance and available institutional factors for the progressive implementation of ICT techniques in schools, for better outcome in the student learning process.