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Search Results: 1 - 10 of 258 matches for " Sujatha; "
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Zeeman-Like Topologies in Special and General Theory of Relativity  [PDF]
Ravindra Saraykar, Sujatha Janardhan
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.77063
Abstract: This is a short review article in which we discuss and summarize the works of various researchers over past four decades on Zeeman topology and Zeeman-like topologies, which occur in special and general theory of relativity. We also discuss various properties and inter-relationship of these topologies.
Neural Network Based Normalized Fusion Approaches for Optimized Multimodal Biometric Authentication Algorithm  [PDF]
E. Sujatha, A. Chilambuchelvan
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.78103
Abstract: A multimodal biometric system is applied to recognize individuals for authentication using neural networks. In this paper multimodal biometric algorithm is designed by integrating iris, finger vein, palm print and face biometric traits. Normalized score level fusion approach is applied and optimized, encoded for matching decision. It is a multilevel wavelet, phase based fusion algorithm. This robust multimodal biometric algorithm increases the security level, accuracy, reduces memory size and equal error rate and eliminates unimodal biometric algorithm vulnerabilities.
Implementation of Adaptive Neuro Fuzzy Inference System in Speed Control of Induction Motor Drives  [PDF]
K. Naga Sujatha, K. Vaisakh
Journal of Intelligent Learning Systems and Applications (JILSA) , 2010, DOI: 10.4236/jilsa.2010.22014
Abstract: A new speed control approach based on the Adaptive Neuro-Fuzzy Inference System (ANFIS) to a closed-loop, variable speed induction motor (IM) drive is proposed in this paper. ANFIS provides a nonlinear modeling of motor drive system and the motor speed can accurately track the reference signal. ANFIS has the advantages of employing expert knowledge from the fuzzy inference system and the learning capability of neural networks. The various functional blocks of the system which govern the system behavior for small variations about the operating point are derived, and the transient responses are presented. The proposed (ANFIS) controller is compared with PI controller by computer simulation through the MATLAB/SIMULINK software. The obtained results demonstrate the effectiveness of the proposed control scheme.
Everyday Wars of Position: Social Movements and the Caracas Barrios in a Chávez Era
Fernandes,Sujatha;
Colombia Internacional , 2011,
Abstract: this article identifies the ways that urban social movements in caracas have sought to engage the hybrid state during the presidency of radical leftist leader hugo chávez. chávez's election has created avenues for previously disenfranchised groups to participate in gover-nance and decision-making. the structures and discourses of exclusion are being contested in multiple arenas since chávez has come to power. but, what lines of conflict are emerging as barrio-based movements demand inclusion in the state? in this article, i argue that as urban movements engage with the political arena, they come up against the instrumental rationalities-both liberal and neoliberal-of state administrators. barrio-based social movements counter the utilitarian logics of technocrats with alternative visions based in "lo cotidiano" (the everyday), local culture and historical memory. we need to combine foucault's insights about the operation of power through governmentality with gramsci's insistence on practical politics, in order to account more fully for the contested nature of power. in this article, i suggest the reframing of a gramscian notion of hegemony in a positive sense as "everyday wars of position," to think about the quotidian and subterranean spaces where technocrats are confronted with alternative visions from below. i use the example of com-munity media in caracas to illustrate the ways that social movements engage with the state.
Phthiriasis palpebrarum
Sujatha Vijayalekshmi
Our Dermatology Online , 2012,
Abstract: Phthiriasis palpebrarum of the eyelashes is not an uncommon condition when hygienic condition are inadequate. The lice occupy, chiefly, the roots of the eyelashes, to which they cling tenaciously, while the shafts of the cilia are covered with their brown nits. The patients with the symptom of pruritus of the eyelids and with clinical findings resembling exfoliation on the surface of lid skin and seborrhea accumulation on eyelashes must carefully be examined by slit lamp in order to avoid misdiagnosis. In the cases diagnosed as having lid eczema and seborrheic blepharitis, lice and nits might easily be overlooked and treatment might remain ineffective. Various treatment options are available from medical; mechanical removal of nits and lice, cryotherapy. In this short review we are describing in details about the organism, clinical features, mode of transmission, treatment about Phthiriasis palpebrarum.
Improving the QOS in Video Streaming Multicast
Sujatha M.
Indian Journal of Computer Science and Engineering , 2011,
Abstract: In a streaming video multicast environment a large number of users often request various similar processing on the same stream. Therefore service sharing is feasible, with a large potential of savings in processing cost.The Service invocation order may play a significant role on service sharing in a streaming video multicast application. The problem is how to determine Service Invocation Order for multiple service composition requests with the aim of maximizing service sharing. This paper proposes BFS algorithm to maximize the service sharing in a streaming video multicast environment in order to reduce the processing cost and to increase the scalability. The service invocation orders for multiple service composition requests will be determined with the aim of maximizing the service sharing. The BFS algorithm merges the services level by level without changing the service invocation order.
A Letter
Sujatha S
Indian Journal of Ophthalmology , 2003,
Abstract:
PERFORMANCE EVALUATION OF CROSS AND MULTILINGUAL INFORMATION RETRIEVAL USING RECALL METRIC VARIANTS
Pothula Sujatha
International Journal of Computer and Distributed System , 2012,
Abstract: The performance evaluation of information retrieval systems has achieved a high momentum in the last few years. Basic performance measures of information retrieval systems include precision and recall. While these measures work well in monolingual web retrieval, they are not suitable for CLIR (Cross-lingual Information Retrieval) and MLIR (Multilingual Information Retrieval) where two or more languages are involved respectively. Many measures were proposed to improve over the precision and recall measures but they are inadequate to exhibit the language wise performance evaluations. Recall metric variants for evaluating the performance over the retrieval of the documents in various languages have been proposed in this research. This paper also identifies the major strengths and shortcomings of some of the existing IR performance evaluation measures. This paper concentrates on the metric based performance evaluation on two variants of IR. Experiments are conducted in two phases (CLIR and MLIR). These two phases of experiments have been done on practical web search systems and proved that the proposed measures are necessary to reveal the importance of language wise comparisons.
Essential Oil and its Insecticidal Activity of Medicinal Aromatic Plant Vetiveria zizanioides (L.) Against the Red Flour Beetle Tribolium castaneum (Herbst)
S. Sujatha
Asian Journal of Agricultural Sciences , 2010,
Abstract: Essential oil of Vetiver has versatile uses particularly as an inexpensive yet effective and eco-friendly tool to compact the essential role of biopesticides as well as insecticidal potentials. Insecticidal activity of the root extract of Vetiveria zizanioides (L.) in Petroleum ether, Ethyl acetate, Acetone and methanol against XSM, SMC, SRS and JTC strains of the red flour beetle, Tribolium castaneum (Herbst) was studied. The spongy root mass were dried, powdered and extracted by Steam distillation apparatus with the solvents below 60oC. Experimental extracts were applied on larvae and adult beetles in film residue methods and mortality was recorded after 24 h. In larval bioassay the highest toxicity was recorded for petroleum ether extract (LD50 = 0.051 :g/cm2) in XSM strain and the low est toxicity has been observed in Methanol extract (LD50 =11.351:g/cm2) in SMC strain. In adults petroleum ether extract accessible highest toxicity (LD50 = 58.69 :g/cm2) in JTC 12 strain and the lowest toxicity (LD50 = 204.710 :g/cm2) also been observed for acetone extract in SRS strain. LD50, 95% confidence limits and regression equations are presented.
Performance Evaluation of CLIR and MLIR using Precision Metric Variants
Pothula Sujatha
International Journal of Computer Technology and Applications , 2012,
Abstract: The performance evaluation of information retrieval systems has achieved a high momentum in the last few years. Basic performance measures of information retrieval systems include precision and recall. While these measures work well in monolingual web retrieval, they are not suitable for CLIR (Cross-lingual Information Retrieval) and MLIR (Multilingual Information Retrieval) where two or more languages are involved respectively. Many measures were proposed to improve over the precision-recall measures but they are inadequate to exhibit the language wise performance evaluations. Precision metric variants for evaluating the performance over the retrieval of the documents in various languages have been proposed in this research. This paper also identifies the major strengths and shortcomings of some of the existing IR performance evaluation measures. This paper concentrates on the metric based performance evaluation on two variants of IR. Experiments are conducted in two phases (CLIR and MLIR). These two phases of experiments have been done on practical web search systems and proved that the proposed measures are necessary to reveal the importance of language wise comparisons.
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