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Ambika P.,Kristu Jayanti College | Kumar R.,Kristu Jayanti College | Samath A.,Coimbatore Institute of Technology
Proceedings - 2015 IEEE International Conference on Cloud Computing in Emerging Markets, CCEM 2015 | Year: 2015

Social media outlets such as Twitter and Facebook have become an important forum for peer interaction. Micro-blogging offered by such outlets allows people to publish, share and discuss short messages on the web. In academic institutions, micro-blogging offers a backchannel forum during live classes. It is popular among group of friends and professional colleagues who can also update content and follow each other's post, creating a sense of online learning forum. Latent use of social media and micro-blogging services in education, students and academicians embracing these technologies by sharing everything from personal to general interests and current events. Our Research motive is to embed social networking software into Learning Management System. As an initial step, we aim to analyze and compare micro-blogging behavior of different users in the academic institutions. Students experience, perceptions, attitudes and interactions may differ because online social sites are relatively new in the academic research. The result shows their posting behaviors, activities and perceived benefits. Result and findings helped us to build a user model and got an initial understanding of how students and faculties are likely to use micro-blogging in and out of academic institution. © 2015 IEEE.

Jayasheelan P.,Kristu jayanti College | Jane F.M.M.,Coimbatore Institute of Technology
2016 IEEE International Conference on Current Trends in Advanced Computing, ICCTAC 2016 | Year: 2016

Today, applications that take the congestions caused by traffic jams into account already exist. During rush hour, it is common that multiple congestions occur on the road network. If the number of traffic jams is too big, the radio stations that transmit TMC messages to the end user often only report the longest traffic jams. Those applications use the Traffic Message Channel (TMC) technique to calculate a route around the congestion whenever the application receives a message about a traffic jam being present. The study for finding the optimal shortest path on graphs with nonnegative weights has taken many forms. The weights of a road network are usually either the length of the arcs or the time it takes to traverse the arc from one vertex to another. The latter depending on the length of the arc and the speed a vehicle is allowed to travel. The majority of route planning applications use the shortest path as a synonym for the fastest path. The Multi Constraint algorithm uses three arrays to calculate the shortest path. The first one contains the neighbors of each node. The second array stores the number of neighbors each node has, and the third contains the link weights. In order for the algorithm to work, the road network has to have all these arrays available. © 2016 IEEE.

Kalaiselvi K.,Kristu Jayanti College | Kalaiselvi K.,Bharathiar University | Kumar A.,Ms Engineering College | Kumar A.,Bharathiar University
2016 IEEE International Conference on Current Trends in Advanced Computing, ICCTAC 2016 | Year: 2016

Cryptography based on block ciphers use Key-dependent ciphers for encryption and decryption. The efficiency of these systems depends on the security and the speed of the algorithm. The encryption process needs to be adaptive and dynamic in order to face any cryptanalytic attacks. Increasing the complexity of the algorithm is one way to prevent the attacks. The introduced complexity increases the execution time of the algorithm which leads to timing attacks. This paper attempts to propose two enhanced AES cryptosystem by employing Genetic algorithm (GA) in SPboxes and modification of AES by implementing nonlinear neural network (NN) in SP network to increase the security against timing attack and reduce the computational time of the proposed system. Both GA and NN are used in key expansion and key distribution of the AES algorithm. © 2016 IEEE.

Prabhu S.,Kristu Jayanti College | Prabhu S.,University of Agricultural Sciences, Bangalore | Pirany N.,Shahrekord University | Prasad D.T.,University of Agricultural Sciences, Bangalore
International Journal of Pharma and Bio Sciences | Year: 2015

The fate of alleles after population bottleneck is important for studying the genetic variability of population. For conducting this study, samples from three coconut populations with varied yield traits were collected from different agro climatic regions of south peninsular India. SSR analysis was carried out using thirty- two primer pairs to evaluate genetic variation. Using the software program BOTTLENECK, fluctuations in the population sizes have been identified by detecting the deviations from mutation drift equilibrium. Three well known microsatellite mutation models SMM, TPM and IAM have been used to assess the genetic bottleneck. Three statistical tests- sign test, standardized difference test and wilcox rank test were performed for each mutation model. The results revealed that high yielding and medium yielding populations showed heterozygosity excess, as most of the DH/SD values were positive under IAM, TPM and SMM. However low yielding population showed a heterozygosity deficiency. This clearly shows that the high and medium yielding coconut populations experience genetic bottleneck, however the low yielding population seems to be undergoing rapid population expansion.

Manoj B.,Bangalore University | Elcey C.D.,Kristu Jayanti College | Binu K.S.,Kristu Jayanti College
Asian Journal of Microbiology, Biotechnology and Environmental Sciences | Year: 2011

Efficiency of filamentous fungi such as Aspergillus niger on the bio-liquefaction of low rank Indian coals, its chemical composition, surface characteristics of the products and the microbial mechanisms of coal conversion were studied. Virgin and bio-liquefied/solubilized coal samples were characterized using FT-IR, Scanning electron microscopy and CHNS and proximate analysis. The micrographs were bright field and reveal several features correspond to the mineral grains comprising of aluminium, silicates and calcites. The absence of some morphological features corresponds to inorganic elements in residual samples which confirm demineralisation with the possible formation of respective Aluminum and Silicate complexes. The change in absorption of mineral matter functional group of these coal samples were studied using Fourier transform infra red spectroscopy (FT-IR). From the proximate analysis it was found that the ash content decreased by 76% when treated with fungal culture. © Global Science Publications.

Elcey C.D.,Kristu Jayanti College | Manoj B.,Bangalore University
Asian Journal of Chemistry | Year: 2016

Raman spectra of two coal samples of different rank have been examined with Raman spectrometer operating at an excitation wavelength of 514.5 nm. Raman studies manifested the presence of G band conforming the first order scattering of E2g mode. The sp3 domains at about 1355 cm-1 (D band) is an evidence to edge planes and disordered structures. Analysis by curve fitting the first order spectrum justified the presence of G, D1, D2, D3 and D4 bands. The integrated intensity ratio IG/ID′ is found to be 3.66 and 5.8 while the ID/ID′ ratio is estimated to be about 3 and 4.9 for bituminous and sub-bituminous coal, respectively indicating on-site and hopping defect in the graphene layers. The 2D band is fitted with multiple Lorentian profile has 4 peaks, the intense G∗, G′, D + D′ and 2D′ band at 2445, 2690, 2925 and 3160 cm-1. From the second order spectrum, formation of about 6-8 stacked graphene layers is observed in sub-bitumionus coal.

Deepa M.A.,Kristu Jayanti College | Da Costa M.,Kristu Jayanti College | Monica Hriiyia A.,Kristu Jayanti College
International Journal of Pharma and Bio Sciences | Year: 2015

In the current study an attempt was made to standardize various parameters to increase the production of bioethanol from fruit pulp and peel waste. Citrus limetta pulp, Citrus maxima pulp and peel were used. Hot water pretreatment was found to be best suitable than that of dilute acid pretreatment. pH 3 was found to be more effective for fermentation reactions. Two different enzymes pectinase and a-amylase was used in combination with three different organisms, namely Saccharomyces cerevisiae, Kluyveromyces marixianus and Zymomonas mobilis at room temperature and 50°C. In Citrus limetta pulp and Citrus maxima pulp and peel the highest ethanol yield (24.61%) was obtained at pH 3 using Pectinase enzyme and Kluyveromyces marixianus maintained at 50°C.

Manoj B.,Bangalore University | Elcey C.D.,Kristu Jayanti College
Research Journal of Chemistry and Environment | Year: 2013

The filamentous fungi, A. niger, A. flavus and Penicillium spp were studied for their ability to demineralise the low rank Indian coals. The FTIR spectra of coals showed the presence of stretching vibrations of -OH bond, aliphatic -CH, -CH2 and - CH3 absorptions, C=C and -CH of aromatic structure and mineral groups. X-ray analyses revealed that coal consists of crystalline carbon of turbostratic structure. The average lateral sizes (La), stacking height (Lc) and the interlayer spacing (d002) of the crystallite structure were calculated which ranged from 343.64 to 1.5, 223.20 to 22.54 and 3.35 to 3.60Å respectively. The structure of coal was modified to a product similar to that of pure graphite after leaching with Penicillium spp. Scanning electron microscopy (SEM) analysis of coal revealed a layer like structure on the surface.

Deepa M.A.,Kristu Jayanti College | Narmatha Bai V.,Bharathiar University
International Journal of Botany | Year: 2010

Celastraceae, family constitutes approximately 88 genera and 1300 species of plants. Celastraceae produce various β-dihydroagarofuran sesquiterpene polyesters and pyridine alkaloids, some of which exhibit insect antifeedant and insecticidal activities. Sesquiterpenes with α±-dihydro-β-agarofuran skeleton are considered to be chemotaxonomic indicators of the Celastraceae family. Most of the reported compounds are found to possess insecticidal activity. © 2010 Asian Network for Scientific Information.

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