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529 results on '"Iyakutti, K."'

12. Interaction of H, H2, and MgH2 With Graphene and Possible Application to Hydrogen Storage—A Density Functional Computational Investigation.

Author

Iyakutti, K., Reji, Rence P., Ajaijawahar, K., Lakshmi, I., Rajeswarapalanichamy, R., Surya, V. J., Karthigeyan, A., and Kawazoe, Y.

Subjects
*HYDROGEN storage, *DENSITY functional theory, *COVALENT bonds, *GRAPHENE, *PROTONS
Abstract

The interaction of H, H2, and MgH2 with graphene is investigated using the density functional theory to explore the possibility of exploiting graphene or functionalized graphene as a hydrogen storage medium. The H atom is positioned at various distances from the graphene surface and the energetics are computed in detail. The extent of interaction of the s electron of H with graphene's pz electrons is well brought out. Similar investigations are carried out for H2, MgH2. In the case of H atom, a HC covalent bond is formed. This process turns out to be a prerequisite for proton transfer through graphene. Interactions of H2 and MgH2 with graphene are different from that of H. It leads to the conclusion that functionalized graphene will better substrate/candidate for applications like hydrogen storage. [ABSTRACT FROM AUTHOR]

Published
2024
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19. SPIM Architecture for MVC based Web Applications

Author

Sridaran, R., Padmavathi, G., Iyakutti, K., and Mani, M. N. S.

Subjects
Computer Science - Networking and Internet Architecture
Abstract

The Model / View / Controller design pattern divides an application environment into three components to handle the user-interactions, computations and output respectively. This separation greatly favors architectural reusability. The pattern works well in the case of single-address space and not proven to be efficient for web applications involving multiple address spaces. Web applications force the designers to decide which of the components of the pattern are to be partitioned between the server and client(s) before the design phase commences. For any rapidly growing web application, it is very difficult to incorporate future changes in policies related to partitioning. One solution to this problem is to duplicate the Model and controller components at both server and client(s). However, this may add further problems like delayed data fetch, security and scalability issues. In order to overcome this, a new architecture SPIM has been proposed that deals with the partitioning problem in an alternative way. SPIM shows tremendous improvements in performance when compared with a similar architecture.

Published
2010

20. Teaching Result Analysis Using Rough Sets and Data Mining

Author

Ramasubramanian, P., Iyakutti, K., Thangavelu, P., and Winston, J. Joy

Subjects
Computer Science - Other Computer Science
Abstract

The development of IT and WWW provides different teaching strategies, which are chosen by teachers. Students can acquire knowledge through different learning models. The problem based learning is a popular teaching strategy for teachers. Based on the educational theory, students increase their learning motivation, which can increase learning effectiveness. In this paper, we propose a concept map for each student and staff. This map finds the result of the subjects and also recommends a sequence of remedial teaching. Here, rough set theory is used for dealing with uncertainty in the hidden pattern of data. For each competence the lower and upper approximations are calculated based on the brainstorm maps.

Published
2009

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