Faculty Publications

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Publications by NITK Faculty

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Subject: search.filters.subject.Computer applications

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    Applications of computer in mining industry with special regard to shovel-dumper productivity
    (2007) Mangalpady, M.; Murthy, Ch.S.N.; Pai, R.; Nand, R.
    Now-a-days computer is used in every field of engineering, including mining industry, at various stages in various capacities. One of the major problems in surface mining is material handling, which involves transportation of both ore and overburden. Most of the projects make use of shoveldumper system in spite of its huge capital investment and recurring costs. Hence a lot of mind and time has to be devoted before its procurement so as to optimize their number and maximize its utility. This paper addresses various optimization models available for productivity analysis of shovel-dumper fleet. Match factor method is one of the commonly used techniques to know the relative coverage which shovels are getting from truck fleet. Operations research techniques like queuing theory, integer programming, simulation and goal programming consider the probabilistic nature associated with the system. Even though many models are available for optimization and analyzing the productivity of shovel dumper system, further research and study is needed to devise a desirable technique for the same.
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    A study to examine the superiority of CSAVK, AVK over conventional encryption with a single key
    (Science and Engineering Research Support Society ijbsbt@sersc.org, 2016) Goswami, R.S.; Chakraborty, S.K.; Bhunia, C.T.
    Time variant key is one of the great research challenges in the field of cryptography for achieving the perfect security. Automatic variable Key (AVK) has been well researched and established as an important technique to realize time variant key in achieving towards perfect security. In AVK, proposed by Bhunia, the key is made to vary from data to data or session to session that is essentially required for achieving perfect secrecy. The variable key is generated in each time a data is sent and or a session is made. The time variant key (in AVK) is found to reduce the frequency attack as seen in earlier research, while such key was in applied in AES algorithm. In the present experimental research the authors study the application of AVK & Computing & Shifting AVK (CSAVK) in RSA to examine the reducing effect of frequency attack. © 2016 SERSC.
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    New key pre-distribution scheme based on combinatorial design for wireless sensor networks
    (Institution of Engineering and Technology journals@theiet.org, 2019) Kumar, A.; Bansal, N.; Pais, A.R.
    Key pre-distribution in wireless sensor networks is an important area of research due to limited resource availability in sensor nodes. In this study, the authors propose a novel key pre-distribution scheme for wireless sensor networks based on combinatorial design. The proposed scheme is used to assign secret keys to the sensor nodes so that they can securely communicate among themselves. It also aims to decrease the key storage overhead and improve the overall resiliency of the network. They use the ratio of links broken/affected and the ratio of nodes disconnected to measure the resiliency when some sensor nodes are compromised in the network. They observed that the proposed scheme reduces the key storage overhead in the network while maintaining the desired connectivity among all the sensor nodes. Further, the proposed scheme is more resilient than the majority of existing schemes present in the literature. © The Institution of Engineering and Technology 2019.