Informatics Publishing Limited

D. Punitha ¹, S. Nandhini ¹, D. Kanagalatchumy ¹

Affiliations
1 Sri Manakula Vinayagar Engineering College, Pondicherry, IN

Abstract

The computation in various fields is witnessing drastic growth in performing computation. Cloud computing is shown more interest in worldwide and across Asia Pacific which is being a challenge for our country to face the growing technology by migrating to cloud-computing. This Paper gives a quick Strength, Weakness, opportunity, Threat (SWOT) analysis of E-Development in India which includes E-Government, E-Industry, E-Innovation R/D, E-Learning, E-Security.

Keywords

Cloud Migration, Swot Analysis.

Full Text

     

S. Nandhini ¹, R. Satyabama ²

Affiliations
1 VLSI Design, Government College of Technology, Coimbatore, IN
2 ECE Department, Government College of Technology, Coimbatore, IN

Abstract

Quantum Cellular Automata (QCA) is perfect replacement of Complementary Metal Oxide Semiconductor (CMOS) technology for digital designs.  As transistors decrease in size to accommodate in a single die, it increases chip computational capabilities. However, transistors cannot get much smaller than their current size. The quantum-dot cellular automata (QCA) approach represents one of the possible solutions in overcoming this physical limit. It can be implemented by using reversible gates which will not dissipate power during computation. In general, the testing of sequential circuits is difficult as compared to combinational circuits since it need to test along with the previous state. In this paper, the sequential circuit based on reversible logic can be tested using only two test vector, thereby eliminating the need for any type of scan-path access to internal memory cells. The two test vectors are all 1s and all 0s. The designs of two vectors testable latches, master-slave flip-flops and double edge triggered (DET) flip-flops are presented. Along with that a new design for multiplexer is implemented based on conservative QCA logic, that is not reversible in nature but has similar properties as the Fredkin gate of working as 2:1 multiplexer. The proposed MX-cqca gate surpasses the Fredkin gate in terms of complexity (the number of majority voters), speed, and area. The importance of the proposed work lies in the fact that it provides the design of reversible sequential circuits completely testable for any stuck-at fault by only two test vectors.

Keywords

Quantum-Dot Cellular Automata, Fredkin Gate, Reversible Logic, Double Edge Triggered Flipflop, MX-Cqca.

Full Text

     

S. Nandhini ¹, S. Prayla Shyry ², S. Emalda Roslin ³, N. M. Nandhitha ³, V. Ramachandran ⁴

Affiliations
1 Sathyabama University, Chennai-119, IN
2 Department of Computer Science Engineering, Sathyabama University, Chennai-119, IN
3 Department of Electronics and Telecommunication Engineering, Sathyabama University, Chennai-119, IN
4 Dept of IST, Anna University, Chennai, Guindy, IN

Abstract

Nash Equilibrium is the well known game theory approach that is used extensively for solving the instability problems. Overlay networks are the proper choice for reducing the packet drops due to link failures. However there is an unsolved instability in these networks due to lack of proper communication between the nodes in the network. Once this instability problem in overlay networks is solved, it can overcome all the disadvantages as predicted theoretically and offers itself as a false proof choice for networking. This paper provides an intensive survey on the application of Nash Equilibrium to stabilize overlay nodes with different routing techniques.

Keywords

Nash Equilibrium, Overlay Network, Latency, Network Cost.

Full Text

     

S. Nandhini ¹, K. Revathi ²

Affiliations
1 Department of Microbiology, Ethiraj College for Women, Chennai-600 008, T. N., IN
2 Department of Advanced Zoology and Biotechnology, Ethiraj College for Women, Chennai-600 008, T. N., IN

Abstract

Biofouling is a natural process of colonization of organisms on submerged surfaces, either living or artificial, by a wide range of microorganisms, plants, algae and animals. Biofilms on artificial structures create serious problems for industries worldwide, with effects such as increase in drag force and metal corrosion as well as reduction in heat transfer efficiency. For antifouling or preventing the attachment of fouling organisms, a knowledge of the microbial composition is of considerable importance. In the present study, biofouling samples were collected bimonthly from the boats docked at the Royapuram harbour, which is situated in northern Chennai. Culturable marine bacteria were isolated on Zobell's marine agar medium and identified by biochemical methods. The bacteria most frequently isolated were Bacillus spp., Vibrio spp., Pseudomonas spp., Micrococcus luteus, Proteus mirabilis and Shigella spp. The macrofouling community is dominated by barnacles, Mytilus spp.; green mussel, Perna viridis; polychaetes and other tubeworms. An analysis revealed that most of the marine bacteria are of anthropogenic origin. The stone crab Menippe mercenaria is reported as a macrofouler for the first time.

Keywords

Biofilm, Biofouling Organisms, Marine Boats, Antifouling.

Full Text

   

S. Nandhini ¹

Affiliations
1 School of Advanced Sciences, VIT University, Vellore - 632014, Tamil Nadu, IN

Abstract

Mathematical models of queuing systems play an important role in the analysis of various networks. Queuing mechanisms are essential to manage congestion in heterogeneous network traffic. By applying appropriate queuing models in the current network scenario, the performance of network can be enhanced in a great way. In this context, to improve the network performance, a Low Latency Weighted Fair Queuing with Differential Packet Dropping (LLWFQD) approach is proposed in this paper. The complexity of the WFQ is solved by differential packet dropping method. In differential packet dropping approach the packets with different flows are dropped to achieve fairness. This packet dropping approach is applied to TCP flows in a queue. The results are analyzed with NS-2 for various bottleneck bandwidth and flow rates by considering the throughput, packet loss and delay as performance measures. The results of LLWFQD model are compared with WFQ and the corresponding improvements are shown in graphs. The results show the performance enhancement of LLWFQD than WFQ.

Keywords

Fair Queuing, Low Latency Queuing, Packet Dropping, QoS, Real Time Flows

Full Text

   

S. Nandhini ¹, R. Radha ¹, R. Vadivu ²

Affiliations
1 Department of Pharmacognosy, College of Pharmacy, Madras Medical College, Chennai, IN
2 Department of Pharmacognosy, College of Pharmacy, Madras Medical College, Chennai, IN

Abstract

The present study deals with docking of Hematoporphrin with various anticancer drugs targeting enzymes. The targets used were PDB-ID 2Y3I, PDB-ID 3OZZ, PDB-ID 3UEN and PDB-ID 4O33. Hematoporphyrin docked with these enzymes and interactions between the enzyme and compound were measured and compared with standard Paclitaxel. The study concluded that, the compound (Hematoporphyrin) isolated from plant were high interactions with PDB-ID 4O33 when compared to standard.

Keywords

Docking, Hematoporphyrin, Paclitaxel, Protein Data Bank, Interactions.

Full Text

     

U. Vijayabanu ¹, S. Nandhini ²

Affiliations
1 Assistant Professor & HOD, Department of Psychology, Bhaktavatsalam Memorial College for Women, Chennai, Tamil Nadu, IN
2 Assistant Professor, Department of Psychology Bhaktavatsalam Memorial College for Women, Chennai, Tamil Nadu, IN

Abstract

School is the place where a student learns not only language, maths or science, but also value, righteous behaviour, discipline and self-control. When a child sits in the class for 30-40 minutes, he/she learns to delay the gratification of physiological needs and thereby to control the psychological tensions. They also learn societal norms and appropriate social behaviour they learn concepts by interacting with teachers and peer group. During pandemic the children missed out all these interactions. Hence the present study aimed at identifying the impact of pandemic in learning process. Qualitative research design was used in this present study. Children in the age group of 5 to 7 are the sample. Using purposive sampling technique, parents and teachers 15 each was selected and in-depth interview was conducted to elucidate the impact created by pandemic on learning. Thematic analysis of the information collected was analysed and interpreted into major categories as emotional, social, academic and non-academic. It was found that pandemic had resulted in tremendous change in the behavioural pattern of the children, their attention span was reduced, and most of the children had problem in reading and writing in their mother tongue. However, they are excited about going to school as they like to be with their friends. Children developed more interest in extra-curricular activities like drawing, singing and dancing than academics. The present study implied the importance of parent's role in bringing self-control and the need for training the teachers to handle the online classes more effectively.

Keywords

Academics, Behaviour, Pandemic, Learning

Full Text

     

S. Nandhini ¹, K. S. Jeen Marseline ¹

Affiliations
1 Department of Information Technology and Cognitive Systems, Sri Krishna Arts and Science College, Coimbatore, IN

Abstract

Flying Ad-Hoc Networks (FANETs) have gained prominence in various applications, ranging from surveillance to disaster response. Their dynamic and resource-constrained nature makes efficient energy utilization a paramount concern. One significant challenge in FANETs is minimizing energy consumption, which is essential for prolonging the network lifetime and ensuring continuous operation. This paper introduces the Resilient Artificial Bee Colony Optimized AODV Routing Protocol (RABCO-AODV-RP) to address this challenge. RABCO-AODV-RP leverages the Artificial Bee Colony optimization algorithm to enhance AODV routing, optimizing route selection to minimize energy consumption while maintaining network resilience. The working mechanism of RABCO-AODV-RP encompasses two primary phases: route discovery and route maintenance. During route discovery, the protocol intelligently selects energy-efficient paths using the optimization algorithm, reducing energy waste. In the route maintenance phase, RABCO-AODV-RP continuously adapts to network dynamics, updating routes to ensure efficient and resilient communication. Extensive simulations were conducted using the NS3 network simulator to assess its performance using packet delivery ratio, packet drop ratio, throughput, end-to-end delay, energy consumption and hop count as performance metrics. The results and discussions indicate that RABCO-AODV-RP outperforms traditional AODV routing protocol. It improves packet delivery, throughput and reduces packet drop ratio, end-to-end delay and hop count. This research underscores the potential of RABCO-AODV-RP as a promising solution for extending the operational lifetime of FANETs and ensuring reliable communication in demanding environments.

Keywords

UAV, ABC, AODV, Optimization, FANET, Routing, Energy.

Full Text