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Search Results: 1 - 10 of 223897 matches for " R. Nithya "
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Cluster Based Hierarchical Routing Algorithm for Network on Chip  [PDF]
U. Saravanakumar, R. Rangarajan, R. Haripriya, R. Nithya, K. Rajasekar
Circuits and Systems (CS) , 2013, DOI: 10.4236/cs.2013.45053
Abstract:

This paper presents a new logical mechanism called as Cluster Based Hierarchical Routing (CBHR) to improve the efficiency of NoC. This algorithm comprises the following steps: 1) the network is segmented logically into clusters with same size or different sizes; 2) algorithms are assigned for internal and global routing; 3) routers working functions are modified logically to support local and global communication. The experiments have conducted for CBHR algorithm for two dimensional mesh and torus architectures. The performance of this mechanism is analyzed and compared with other deterministic and adaptive routing algorithms in terms of energy, throughput with different packet injection ratios.

Pharmacognostical and Phytochemical investigation of aerial parts of Lagenaria siceraria (Mol.) Standley
Nithya R,Jayshree N
International Journal For Pharmaceutical Research Scholars , 2013,
Abstract: Lagenaria siceraria (Mol.) Standley is a large pubescent, climbing or tailing herb with stout 5- angledstems and bifid tendrils belonging to the family Cucurbitaceae. Various parts of Lagenaria siceraria(Mol.) Standley has traditional and folklore claims in the treatment of diabetes, obesity, cardiovasculardiseases, urolithiasis, adenopathy, cancer, hypercholesterolemia, dyskinesia, hepatosis, jaundice,diarrhoea, dysuria, fever, rheumatism, myalgia, ophthalmia, uterosis, scabies, ulcer. In the presentinvestigation, the detailed microscopic study of Lagenaria siceraria fruit and seed, have been carriedout. Physiochemical, phytochemical studies for the aerial parts have been carried out to lay down thestandards which could be useful in future experimental studies.
Breast Cancer Diagnosis in Digital Mammogram using Statistical Features and Neural Network
R. Nithya,B. Santhi
Research Journal of Applied Sciences, Engineering and Technology , 2012,
Abstract: In this study, the mammogram is classified as either normal or cancer pattern. In the last few decades soft computing improves the accuracy of the breast cancer detection in digital mammograms. The standard approach for diagnosis of breast cancer is biopsy. But biopsy makes patient discomfort, bleeding and infection. The CAD (Computer Aided Diagnosis) is developed for the reason of avoid unnecessary biopsy. The statistical features are extracted from the digital mammograms. These features are fed to neural network classifier to classify it into two classes namely normal and cancer. This study describes neural network classification technique. Experiments have been conducted on images of DDSM (Digital Database for Screening Mammography) database. The performance measures are evaluated by confusion matrix. By increasing the training samples this study reveals the improved classification accuracy. This CAD system achieved 94% accuracy, 96% sensitivity and 92% specificity for diagnosis of breast cancer.
Predicting menopausal health in a diverse population group through a theoretical linear model——Theoretical model to predict menopausal health  [PDF]
Amit Sengupta, Nithya Srinivasan
Health (Health) , 2010, DOI: 10.4236/health.2010.211197
Abstract: With the increase in longevity and demographic shift, menopause is emerging as one of the major health issues affecting middle aged women in developing countries. In this study our aim was to define & develop useful predictive indicators to assess menopausal health status in women with diverse socio-economic & cultural backgrounds. The model was developed using the data drawn from known published works as well as our own epidemiological & clinical case records. A linear equation was derived and expected results were obtained and analysed. The outcome was measured in terms of menopausal health & wellbeing index. Wide cultural diversity, unequal socio-economic status and gender inequality are some of the sensitive multi factorial determinants that influence the menopausal health. Education and availability of optimal quality health care facilities positively influenced level of awareness and improved the health seeking behavior & health literacy. The menopausal health & wellbeing index can be used as a predictive tool to develop interventional management modalities to improve quality of life.
3-(1,3-Dioxolan-2-yl)-2-hydrazino-7-methylquinoline
R. Subashini,Venkatesha R. Hathwar,P. Nithya,K. Prabakaran
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809003031
Abstract: In the title molecule, C13H15N3O2, the dihedral angle between the mean plane of the 1,3-dioxolane group and the 2-hydrazino-7-methylisoquinoline unit is 85.21 (5)°. The conformation of the molecule is influenced by bifurcated N—H...(O,O) and N—H...N intramolecular hydrogen bonds. In the crystal structure, molecules are linked via intermolecular N—H...O hydrogen bonds, forming extended chains along [001].
3-Phenylisoquinolin-1(2H)-one
P. Manivel,Venkatesha R. Hathwar,R. Subashini,P. Nithya
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809000245
Abstract: The title compound, C15H11NO, consists of a planar isoquinolinone group to which a phenyl ring is attached in a twisted fashion [dihedral angle = 39.44 (4)°]. The crystal packing is dominated by intermolecular N—H...O and C—H...O hydrogen bonds which define centrosymmetric dimeric entitities.
1-(4-Chlorophenyl)-2-[(3-phenylisoquinolin-1-yl)sulfanyl]ethanone
P. Manivel,Venkatesha R. Hathwar,P. Nithya,R. Subashini
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809000257
Abstract: The title compound, C23H16ClNOS, exhibits dihedral angles of 11.73 (1) and 66.07 (1)°, respectively, between the mean plane of the isoquinoline system and the attached phenyl ring, and between the isoquinoline system and the chlorophenyl ring. The dihedral angle between the phenyl and chlorophenyl rings is 54.66 (1)°.
Ion transport regulation by P2Y receptors, protein kinase C and phosphatidylinositol 3-kinase within the semicircular canal duct epithelium
Satyanarayana R Pondugula, Nithya N Raveendran, Daniel C Marcus
BMC Research Notes , 2010, DOI: 10.1186/1756-0500-3-100
Abstract: Transport function was assessed by measurements of short circuit current (Isc) and gene transcript expression was evaluated by microarray. Neither ATP nor UTP (100 microM) on the apical side of the epithelium had any effect on Isc. By contrast, basolateral ATP transiently increased Isc and transepithelial resistance dropped significantly after basolateral ATP and UTP. P2Y2 was the sole UTP-sensitive purinergic receptor expressed. Isc was reduced by 42%, 50% and 63% after knockdown of α-ENaC, stimulation of PKC and inhibition of PI3-K, while the latter two increased the transepithelial resistance. PKCdelta, PKCgamma and PI3-K were found to be expressed.These observations demonstrate that ion transport by the SCCD is regulated by P2Y2 purinergic receptors on the basolateral membrane that may respond to systemic or local agonists, such as ATP and/or UTP. The sodium absorption from endolymph mediated by ENaC in SCCD is regulated by signal pathways that include the kinases PKC and PI3-K. These three newly-identified regulatory components may prove to be valuable drug targets in the control of pathologic vestibular conditions involving dysfunction of transport homeostasis in the ear, such as Meniere's disease.The transduction of linear and rotational acceleration into the sense of balance is driven and dependent on the ion composition of the luminal fluid, endolymph, of the vestibular labyrinth [1]. We have shown that the semicircular canal duct (SCCD) epithelium contributes to the homeostasis of endolymph by absorption of Na+, secretion of Cl- and absorption of Ca2+ [2-4]. These processes are known to be controlled by glucocorticoids, β-adrenergic agonists and vitamin D, respectively [2-4]. The present study augments previous investigations by reporting data that show the involvement of protein kinase C (PKC) and phosphatidylinositol 3-kinase (PI3-K) in the regulation of Na+ transport by the SCCD and the regulation of transport and/or epithelial barrier function by the P
Analysis of Three Phase Four Wire Inverter for UPS Fed Unbalanced Star Connected Load
R. Senthil Kumar,Jovitha Jerome,S. Nithya Bhama
International Journal of Electrical and Power Engineering , 2012, DOI: 10.3923/ijepe.2010.38.44
Abstract: A Three phase inverter with a neutral connection i.e., three phase four wire inverter is proposed. The UPS system is fed by three phase four wire inverter and the load neutral point voltage is low to meet the requirement of the system. The four leg inverters effectively provide the neutral connection in three phase four wire system. They are used in many applications to handle the neutral current caused by the unbalanced and non-linear load. The unbalanced load becomes non-linear where the neutral of the loads are accessible. The four leg inverter produces the three output voltages independently with one additional leg. The main feature of a three phase inverter with an additional neutral leg is its ability to deal with load unbalance in a system. The goal of the three phase four leg inverter is to maintain the desired sinusoidal output voltage waveform for all loading conditions and transients. The neutral connection is present to handle the ground current due to unbalanced loads. The feasibility of the proposed modulation technique is verified by Matlab/Simulink.
1,3,6-Trimethylpyrano[4,3-b]pyrrol-4(1H)-one
V. Krishnakumar,F. Nawaz Khan,Venkatesha R. Hathwar,P. Nithya
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536809055627
Abstract: All the non-H atoms of the title compound, C10H11NO2, are almost coplanar [maximum deviation = 0.040 (3) ]. The crystal structure is stabilized by C—H...O hydrogen bonds.
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