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Mittal, Sumit
- The Influence of Sugar-Phosphate Backbone on the Stacking Interaction in B-DNA Helix Formation
Abstract Views :216 |
PDF Views:83
Authors
Affiliations
1 Indian Institute of Science Education and Research Mohali, Manauli 140 306, IN
2 Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, IN
1 Indian Institute of Science Education and Research Mohali, Manauli 140 306, IN
2 Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, IN
Source
Current Science, Vol 108, No 6 (2015), Pagination: 1126-1131Abstract
The influence of sugar-phosphate backbone on the stacking interaction in the adenine…thymine base-pair dimer (A…T)2 has been studied using the density functional theoretic method and the dispersion-corrected density functional BLYP-D3 and the triple-zeta quality basis set def2-TZVP. In the absence of the sugar-phosphate backbone, several stacked conform-ers were obtained with a small difference in their stabilization energy values (-20 to -25 kcal/mol). However, the presence of the sugar-phosphate back-bone limits the movement of the two A…T units, and yet the stacking interaction remains significant (-19.4 kcal/mol). Despite the constraints imposed by the backbone, the dimer (A…T)2 is found to retain its favourable geometry. The influence of sodium ions on the geometry and the interaction energy is found to be negligible.Keywords
B-DNA Helix Formation, BLYP-D3, Stacking Interaction, Sugar–Phosphate Backbone.Full Text
- A Comparative Study of Metaheuristics based Task Scheduling in Distributed Environment
Abstract Views :249 |
PDF Views:0
Authors
Affiliations
1 Department of Computer Science, Guru Nanak College for Girls, Sri Muktsar Sahib –152026, Punjab, IN
2 Maharishi Markandeshwar Institute of Computer Technology and Business Management, Maharishi Markandeshwar University, Mullana, Ambala – 133203, Haryana, IN
3 Department of Computer Science and Engineering, Maharishi Markandeshwar University, Sadopur, Near Omaxe Flats, Ambala-Chandigarh Highway, Ambala – 133001, Haryana, IN
1 Department of Computer Science, Guru Nanak College for Girls, Sri Muktsar Sahib –152026, Punjab, IN
2 Maharishi Markandeshwar Institute of Computer Technology and Business Management, Maharishi Markandeshwar University, Mullana, Ambala – 133203, Haryana, IN
3 Department of Computer Science and Engineering, Maharishi Markandeshwar University, Sadopur, Near Omaxe Flats, Ambala-Chandigarh Highway, Ambala – 133001, Haryana, IN
Source
Indian Journal of Science and Technology, Vol 10, No 26 (2017), Pagination:Abstract
Objectives: To make an extensive survey on various meta-heuristic and hybrid task scheduling along with their classification patterns and to find the scope of improvement in these techniques. Method: This paper carries to the deep study of 99 reputed research papers from Springer, IEEE, Elsevier, Scopus indexed; SCI indexed of well-known renowned journals. These research papers are selected by taking into consideration of relevance to research area. These scheduling algorithms are compared in terms of their performance metrics, environments and results. Findings: This paper described that there are various renowned researchers who have proposed various meta-heuristic task scheduling techniques to achieve the optimum results but after the extensive survey of various scheduling techniques based on genetic, Simulated Annealing (SA), ACO, PSO and hybrid reveals that a lot of dimensions are yet to be explored in terms of datacenter cost, virtual machine migration, energy consumption and Service-Level Agreement etc. Application: It discusses numerous meta-heuristic based task scheduling algorithms with their classification patterns so as to find the gap in the already proposed algorithm and suggest the untouched areas for the further research.Keywords
Cloud Computing, Distributive Environment, Metaheuristics, NP Hard Problems, Task Scheduling.Full Text
- A Secure and Reliable Handoff Authentication Protocol with Batch Verification for Internet of Things Environment
Abstract Views :276 |
PDF Views:1
Authors
Affiliations
1 M.M. Institute of Computer Technology and Business Management, Maharishi Markandeshwar (Deemed to be University) Mullana, Ambala, Haryana, IN
1 M.M. Institute of Computer Technology and Business Management, Maharishi Markandeshwar (Deemed to be University) Mullana, Ambala, Haryana, IN
Source
International Journal of Computer Networks and Applications, Vol 8, No 5 (2021), Pagination: 477-489Abstract
Internet is no longer a mere source of information as the concept of interconnectivity has expanded to connect real things or objects like every kind of machines, cars, homes, hospitals, even our bodies through wearable devices. The concept of interconnectivity of billions of objects (mobile or stationary) providing and exchanging real time data is called Internet of Things (IoT). Myriad IoT applications are touching every aspect of our lives and have the latent to develop the basic quality of life for masses. However, prerequisite for successful implementation of any IoT application is uninterrupted and high-quality network connectivity and handling of huge amounts of personal and sensitive user data which gives rise to the questions of security. A handoff authentication protocol with high security and efficiency is required for enabling secure and seamless handoff of mobile nodes between different access points (AP). However, there are number of challenges in designing a secure handoff protocol for IoT systems like limited power of mobile nodes, computational capability, security and vulnerability of open IoT networks. In this paper, we propose a secure and reliable handoff authentication protocol for such IoT devices. Compared with other well-known similar handoff protocols, the protocol proposed here satisfies all relevant security requirements of handoff such as batch verification, mobile node un-traceability, and anonymity and is unaffected by other attacks like replay attacks and also provides mutual authentication. To demonstrate the security strength (against replay attacks) of our protocol, simulation has been done using AVISPA. Thus, protocol proposed by us is more appropriate for IoT environment compared to the alike protocols.Keywords
Batch Verification, Authentication, Security, Reliability, Handoff, IoT, AVISPA.Full Text
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