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Search Results: 1 - 10 of 402197 matches for " M. BANU PRIYA "
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Methodologies for Trend Detection Based on Temporal Text Mining
International Journal of Computer Science and Mobile Computing , 2013,
Abstract: We present two methodologies for the detection of emerging trends in the area of textual datamining. These manual methods are intended to help us improve the performance of our existing fullyautomatic trend detection system [3]. The first methodology uses citations traces with pruning metrics togenerate a document set for an emerging trend. Following this, threshold values are tested to determine theyear that the trend emerges. The second methodology uses web resources to identify incipient emergingtrends. We demonstrate with a confidence level of 99% that our second approach results in a significantimprovement in the precision of trend detection. Lastly we propose the integration of these methods for boththe improvement of our existing fully automatic approach as well as in the deployment of our semiautomatedCIMEL [20] prototype that employs emerging trends detection to enhance multimedia-basedComputer Science education.
Performance Enhancement Architecture of VoIP Applications in Multiprotocol Label Switching Networks  [PDF]
J. Faritha Banu, K. G. Shanthi, P. Lakshmi Priya, M. Faritha Begum
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.78178
Abstract: In recent years, Voice over IP (VoIP) has impacted global telecommunications and networking tremendously. Traffic engineering and Quality of Service (QoS) guarantees for VoIP services pose a challenge for network researchers and designers. The repeated use of Internet Protocol shortest path towards the same destination may lead to unbalanced traffic situations and degraded network performance. Therefore, load balancing and link utilization become the critical functions in Internet Protocol routing for providing Quality of Service assurance for VoIP application. The aim of this work is to employ Multiprotocol Label Switching Network as a traffic engineering tool to enhance the QoS for VoIP applications. To achieve this, an effective Multiprotocol Label Switching Network load balancing architecture is developed that classifies the Internet traffic flows, routes the flows into multiple paths. Flow arrival rate, packet loss rate and delay are measured and taken as the input parameters and compared with the threshold values to identify the VoIP flow. Network load status is calculated by estimating the average buffer occupancy value and multipath routing is triggered when the network load is high to enhance the QoS. The investigated performance measures like throughput, delay and packet loss are reported to show the efficiency of the proposed technique for effective VoIP flows.
A State Space Modeling of Non-Isolated Bidirectional DC-DC Converter with Active Switch  [PDF]
J. Barsana Banu, M. Balasingh Moses
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.74018
Abstract: In this paper, analysis, design and implementation of non-isolated soft-switching bidirectional DC-DC converter with an active switch are described. The proposed topology gives the output voltage as twice as the input voltage and enhances the efficiency up to 94.5% and 92.9% for boost and buck mode operation by proper selection of the duty cycle. Soft switching can be achieved at both steps up and step down operating modes. Small signal analysis based on state space averaging and transfer functions have been presented in detail for the proposed converter. Finally, the feasibility of the desired converter is confirmed to mat lab simulation and investigational results.
Frequency Synchronization in OFDM System  [PDF]
C. Geetha Priya, A. M. Vasumathi
Journal of Signal and Information Processing (JSIP) , 2013, DOI: 10.4236/jsip.2013.43B024

An accurate frequency synchronization method using the zadoff-chu (ZC) constant envelop preamble is analyzed, and a new preamble weighted by pseudo-noise sequence is used for orthogonal frequency division multiplexing (OFDM) systems. Using this method, frequency offset estimator range is greatly enlarged with no loss in accuracy. The range of the frequency estimation is ±30 of subcarrier spacing using ZC sequence as preamble. Simulations in the MATLAB for an AWGN channel show that the proposed method achieves superior performance to existing techniques in terms of frequency accuracy and range.

Field Screening and Evaluation of Pigeonpea Genotypes Against Podborer (Helicoverpa Armigera)
M. Rizwana Banu
Pakistan Journal of Biological Sciences , 2007,
Abstract: : Hence an experiment was conducted to screen fifteen germplasm lines for their resistance/tolerance to podborer under natural infestation in pesticide-free open field. To asses the degree of infestation 250 green pods were randomly picked up from all the plants of each plot. The pods damaged by gram podborer were detected by the presence large bored holes in pods. Such infested and healthy pods were counted separately. The pod damage (%) was calculated on the basis of number of pods examined and the number of infested pods. Marketable green pod yield of each genotype under natural pest infestation was also recorded. On the basis of mean infestation, ICP13201 showed the lowest (25%) pod damage and showed lowest susceptibility among the genotypes studied. It was followed by ICP13208 and ICP11964 showed lower pod damage. The rest of the genotype suffered higher pod damage to Helicoverpa armigera. Considering the yield potential ICP13201, ICP13214 and ICP13212 showed higher yield potential than other genotypes. Considering the lower susceptibility to Helicoverpa armigera and higher yield potential ICP13201 was found to be the best.
Relative significance of protein calorie malnutrition and vitamin A and carotene level in the etiology of xerophthalmia in Indian children
Jain M,Tahiri Banu
Indian Journal of Ophthalmology , 1981,
Optimizing the Cost for Resource Subscription Policy in IaaS Cloud
M. Uthaya Banu,K. Saravanan
Computer Science , 2014,
Abstract: Cloud computing allow the users to efficiently and dynamically provision computing resource to meet their IT needs. Cloud Provider offers two subscription plan to the customer namely reservation and on-demand. The reservation plan is typically cheaper than on-demand plan. If the actual computing demand is known in advance reserving the resource would be straightforward. The challenge is how to make properly resource provisioning and how the customers efficiently purchase the provisioning options under reservation and on-demand. To address this issue, two-phase algorithm are proposed to minimize service provision cost in both reservation and on-demand plan. To reserve the correct and optimal amount of resources during reservation, proposed a mathematical formulae in the first phase. To predict resource demand, use kalman filter in the second phase. The evaluation result shows that the two-phase algorithm can significantly reduce the provision cost and the prediction is of reasonable accuracy.
Comparative Finite Element Analysis of Jaipur Foot and Polyurethane Foot  [PDF]
Priya Sharma, Shubhda Sharma, S. Vidhya, M. K. Mathur
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.510B106

FEA is amongst best methods that help users to solve complex problems. There are fixed number of nodes in each ele-ment of the model that define the element boundaries to which boundary condition and loads can be applied. The geo-metry of the structure, the load applications, stress and displacement gradients can be approximated in a accurate man-ner, if the mesh is finer. The problem with the foot was unusual cracks in JP Foot and early breakage of PU Foot due to crack propagation[1]. To solve this problem we modelled the foot using SolidWorks and performed FEA Analysis for single leg below knee amputee patients. After analysis, it has been concluded that JP Foot as compared to PU Foot has more stress bearing capacity but has less displacement threshold due to its material properties[2]. This work will lead to optimization of both the feet thus enhancing the durability of foot.


A Research on Light-Color Perception: Can Visual Images Be Used Instead of 1/1 Model Study for Space Perception?  [PDF]
Banu Manav
Psychology (PSYCH) , 2013, DOI: 10.4236/psych.2013.49101

This paper examines designing a research on architectural coloring process and approaches to develop a color-emotion space model for human visual system. Matched on relevant methodology, a study is explored to compare modes of color evaluation with the following hypothesis; can slides of a real setting be used instead of 1/1 model study for space perception? The study is composed of two interrelated parts. Firstly, 1/1 model room is designed in order to investigate lighting quality, color evaluation and visual perception in respect to the lighting scheme. Secondly, slides of this model room are projected to a participant group to evaluate the room for lighting quality, color evaluation and visual perception. The methodology is based on investigating between the two cases. The 1/1 scaled model and replication of the same study by its slides are analyzed from lighting quality and lighting quantity point of views. The findings suggested that there are similarities between the results, however the 1/1 model room provides a controlled setting for human based research, visual impact is stronger and subjective impression is more realistic. As a visual research method, replication of a real setting (by its slides) can be used instead of constructing the real case which may also bring flexibility and lower cost to design studies.

Variations in Draining Patterns of Right Pulmonary Veins at the Hilum and an Anatomical Classification
M. S. Rajeshwari,Priya Ranganath
ISRN Pulmonology , 2012, DOI: 10.5402/2012/786549
Abstract: Pulmonary veins carry oxygenated blood from the lungs to the left atrium. Variations are quite common in the pattern of drainage. The present study was undertaken to evaluate the incidence of different draining patterns of the right pulmonary veins at the hilum by dissecting the human fixed cadaveric lungs. Clinically, pulmonary veins have been demonstrated to often play an important role in generating atrial fibrillation. Hence, it is important to look into the anatomy of the veins during MR imaging and CT angiography. In 53.8% of cases, the right superior lobar vein and right middle lobar vein were found to be united together to form the right superior pulmonary vein. In contrast to this, in 11.53% of cases, right middle lobar vein united with the right inferior lobar vein to form the right inferior pulmonary vein, while in 26.9% of cases, the right superior lobar vein, right middle lobar vein, and right inferior lobar vein drained separately. 1. Introduction Pulmonary veins drain oxygenated blood from the lungs to the left atrium of the heart. The lobular tributaries lie mainly in the interlobular septa. One main vein drains each bronchopulmonary segment usually on the anterior surface of the corresponding bronchus. Veins also run between the segments and on the mediastinal and fissural surfaces of the lungs; some veins cross the line of fissure when the fissures are incomplete. The veins of the right medial segment of inferior lobe frequently arise from the veins of the middle lobe. The superior right pulmonary vein drains the right superior and middle lobe and thus corresponds to the superior left pulmonary vein which drains the left superior lobe. The right inferior pulmonary vein and left inferior pulmonary veins drain the corresponding inferior lobes [1]. The present study is to ascertain the incidence of different draining patterns of the right pulmonary vein at the hilum as it is clinically very important to look into the anatomy of the veins during MR imaging and CT angiography. 2. Material and Methods The study involved twenty-six formalin-fixed adult cadaveric lungs of unknown sex from Bangalore Medical College & Research Institute, Bangalore, Karnataka. The dissection initially involved identifying the structures at the hilum. The pulmonary veins were picked up and their tributaries were traced peripherally by meticulously dissecting the lung tissue using blunt forceps. Interestingly different patterns in the drainage of pulmonary veins were noted. 3. Results The different draining patterns noted are as follows. In 53.8% of dissected lungs
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