16 research outputs found

    Software security requirements management as an emerging cloud computing service

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    © 2016 Elsevier Ltd. All rights reserved.Emerging cloud applications are growing rapidly and the need for identifying and managing service requirements is also highly important and critical at present. Software Engineering and Information Systems has established techniques, methods and technology over two decades to help achieve cloud service requirements, design, development, and testing. However, due to the lack of understanding of software security vulnerabilities that should have been identified and managed during the requirements engineering phase, we have not been so successful in applying software engineering, information management, and requirements management principles that have been established for the past at least 25 years, when developing secure software systems. Therefore, software security cannot just be added after a system has been built and delivered to customers as seen in today's software applications. This paper provides concise methods, techniques, and best practice requirements engineering and management as an emerging cloud service (SSREMaaES) and also provides guidelines on software security as a service. This paper also discusses an Integrated-Secure SDLC model (IS-SDLC), which will benefit practitioners, researchers, learners, and educators. This paper illustrates our approach for a large cloud system Amazon EC2 service

    Fractured Identities: A Study of Diasporic Reality & Identity Crisis in Agha

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    Diaspora is much talked and celebrated discourse across the disciplines. Confrontation of diasporic community with native community gives rise to multi-dimensional problems. Diasporic community thus undergoes different levels of realities that change their perception as person who migrated from his/her homeland in search of new opportunities. Their perception as a segment in foreign land is marked with the sense of alienation, hybridity, identity crisis and many other mental and physical, cultural-religious, and spatial-geographical turmoil. In a sense they come across the diasporic reality. Diasporic reality is a combined study of Diaspora and problems of migrants. This paper explores the meaning of diaspora through the definitions of different writers and the problems of migrants.  It specifically attempts to trace the problems of identity crisis and hybridity as confrontation with different often contradictory socio-cultural, religious, and different historical backdrop in which diasporic community is located in

    Energy conservation through solar energy assisted dryer for plastic processing industry

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    Consumption of plastics is directly linked with economic growth of plastic industry of respective country. India's plastics consumption is only about 2% of the world. Despite of proposed growth, higher cost of Energy requirement for processing are obstructing growth of plasticulture. Energy efficiency/ conservation measures in plastic processing requires attention to harness alternate energy sources through technological modifications during material processing. This paper depicts practical solution for partial usage of non- conventional energy source; solar energy in conventional plastic process method. About3-5 % of total energy required for processing is utilized for drying and precondition of material. Thus attempt is made to use solar energy for drying of Nylon-6 and polypropylene (PP) by designing natural convection based Solar Dryer. Drying of Nylon-6 is found to be in the falling rate period. Nylon-6 took nearly 6 hrs. (1days) to reach 0.15% moisture content value. Effective diffusivity is varied from 4 - 6.5 X 10-9cm2/sec. Temperature rise for PP material is achieved up to 70°C in the dryer, hence preheating is achieved with same dryer design. Solar dryer can certainly reduce conventional energy consumption during plastic processing at industrial scale. Cost benefit analysis shows that adaptation of solar energy dryer for plastic process industry lead to economic production of plastic goods. © 2014 The Authors

    Development reaction synthesis process of novel Al-alloys -TiB2 metal matrix composites by in-situ

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    Among the numerous methods of production discontinuously reinforced metal-matrix composites, technologies allowing in-situ production of the reinforcing production of the reinforcing phase offer significant advantages from a technical and economic standpoint. There has been a constant drive for replacing commercial Al and monolithic aluminium alloys by aluminium based metal matrix composites (MMCs) in manyindustrial applications where high stiffness and high strength to weight ratio are required. The present paper describes a cost effective route to produce Al and Al- alloy-10 wt % TiB2 metal matrix composites by in-situ molten flux assisted reaction synthesis.The in-situ formation of a ceramic second phase provides greater control of size and level of reinforcement, yielding better tailorability of the composite properties. In-Situ Al and Al - Alloy -TiB2 composite material prepared by reaction synthesis was cast into thick as well as thin section industrial components by gravity and pressure die casting route. Subsequent structure-property evaluation studies indicated sub-micron size reinforcement of in-situ formed TiB2 particles with improved physical and mechanical properties as compared to conventional Al, Al-Alloys & its composites. From commercial point of view, the Al-Alloy-TiB2 composite has an advantage of easy recycle ability over conventional Al-alloy composites

    Direct transfer of micro-molded electrodes for enhanced mass transport and water management in PEMFC

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    Soft lithography technique is used to micropattern the electrodes on the electrolyte membrane of polymer electrolyte fuel cell (PEMFC) in order to alleviate the issues due to poor water management and inadequate reactant distribution in the fuel cell environment. Membrane electrode assembly with the micropatterned electrode has shown an increase in power density at a higher temperature as well as at a higher relative humidity when compared to a flat electrode. Consistency in cell performance is observed in the case of micropatterned electrodes
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