Search results for: R. Rajeswari

Items from 1 to 20 out of 69 results

article

Microbial fuel cell–based self‐powered biosensor for environment monitoring in IoT cloud framework

K. Saravanakumar, R. Rajeswari

Concurrency and Computation: Practice and Experience > 31 > 15 > n/a - n/a

Renewable energy sources are useful for sustainable monitoring, but still very limited today due to various implementation constraints. Microbial fuel cells (MFCs) are considered a promising renewable power source for remote monitoring applications. They are used as wireless temperature sensors and biosensors due to their ability in powering environmental sensors. MFCs can provide ultralow and dynamic...

article

A trusted fuzzy based stable and secure routing algorithm for effective communication in mobile adhoc networks

A. R. Rajeswari, K. Kulothungan, Sannasi Ganapathy, A. Kannan

Peer-to-Peer Networking and Applications > 2019 > 12 > 5 > 1076-1096

Mobile Ad-hoc Networks have distinct characteristics namely lack of centralized control and management, severe resource constraints in terms of energy level of nodes, computing power, frequent mobility and frequent change of topology. This dynamic nature of mobile adhoc networks lead to additional overhead in the provision of secured and stable routing. In order to address these issues, we propose...

article

Assessment of cell-free levels of iron and copper in patients with Friedreich’s ataxia

Deepti Pathak, Achal Kumar Srivastava, Sheffali Gulati, Moganty R. Rajeswari

BioMetals > 2019 > 32 > 2 > 307-315

Friedreich’s ataxia (FRDA), a progressive neurodegenerative disorder caused by trinucleotide (GAA) repeat expansion in frataxin (fxn) gene which results in decreased levels of frataxin protein. Insufficient frataxin levels leads to iron and copper deposits in the brain and cardiac cells. A total of hundred and twenty patients, suspected of FRDA were screened for the (GAA) repeats in the fxn gene and...

article

Studies on structural, optical and thermal properties of Fe₃O₄ (NR)/ZrO₂ CSNCs synthesized via green approach for photodegradation of dyes

E. Nandhakumar, P. Priya, R. Rajeswari, V. Aravindhan, more

Research on Chemical Intermediates > 2019 > 45 > 5 > 2657-2671

In the present work, Fe₃O₄ (NR)/ZrO₂ core/shell nanocomposites (CSNCs) were synthesized using a green approach. The Argemone mexicana L. leaf extract acts as both a reducing and capping agent in the synthesized Fe₃O₄ (NR)/ZrO₂ CSNCs. Phase purity of Fe₃O₄ (NR)/ZrO₂ CSNCs is shown by powder X-ray diffraction. Bio-constituents in the leaf extract and synthesized Fe₃O₄ (NR)/ZrO₂ CSNCs were observed by...

article

Statistical Analysis of Partial Discharge, Lightning Impulse and BDV Characteristics of Nano SiO₂-Corn Oil for HV Insulation Applications

R. Rajeswari, S. Chandrasekar, B. Karthik

Journal of Electrical Engineering & Technology > 2019 > 14 > 2 > 877-888

Recent concern towards environmental and fire safety of transformer operation has led to the development of natural ester based liquid insulation for power transformers. Recent advancements in nano technology confirm that the nano modified liquid insulation provides superior dielectric and thermal properties. Statistical analysis of the dielectric properties of nano modified liquid dielectrics is...

article

Viscoelastic and acoustic characterization of polyurethane‐based acoustic absorber panels for underwater applications

V. G. Jayakumari, R. K. Shamsudeen, R. Rajeswari, T. Mukundan

Journal of Applied Polymer Science > 136 > 10 > n/a - n/a

Acoustic absorbers that can have applications in a desired frequency band are a challenge often encountered in underwater acoustic absorber panel design. Polyurethane‐based sound absorbing composite panels were designed with the help of finite element method (FEM) modeling using COMSOL for material formulations that can give optimum performance of echo reduction (ER) with minimum thickness. Polyurethanes...

article

Investigations into process mechanics of rough and finish die sinking EDM using pulse train analysis

R. Rajeswari, M. S. Shunmugam

The International Journal of Advanced Manufacturing Technology > 2019 > 100 > 5-8 > 1945-1964

Electrical discharge machining (EDM) is extensively used for machining difficult-to-machine materials and complicated shapes. Its performance in terms of material removal rate and surface roughness is usually analyzed using the process parameters such as setting voltage, setting current, pulse on time, and duty factor. It is well known that interelectrode gap condition controls the EDM performance,...

article

Internet of Things Based Industrial Automation Using Brushless DC Motor Application with Resilient Directed Neural Network Control FED Virtual Z-Source Multilevel Inverter Topology

S. Sivaranjani, R. Rajeswari

Wireless Personal Communications > 2018 > 102 > 4 > 3239-3254

Internet of Things (IoT) is a high-speed communication technology which has carnal substances or devices entrenched with sensors, system connectivity, which allows to receive and interchange data. Industrial Monitoring and Control is required to assemble all the material information, statistics, and data related to the various industrial processes, motors, machines and devices employed in industrial...

article

Enhanced light harvesting with novel photon upconverted Y2CaZnO5:Er3+/Yb3+ nanophosphors for dye sensitized solar cells

R. Rajeswari, K. Susmitha, C.K. Jayasankar, M. Raghavender, more

Solar Energy > 2017 > 157 > C > 956-965

Trivalent erbium (Er³⁺) and erbium-yttribium (Er³⁺/Yb³⁺) co-doped Y₂CaZnO₅ (YCZ) nanophosphors were synthesized via Sol-Gel combustion method and applied as photon up-converter in dye sensitized solar cell (DSSC) and studied for their photovoltaic properties. A bright green and green–red up-conversion emission is observed upon an excitation of 980nm in Er³⁺:YCZ and Er³⁺/Yb³⁺:YCZ nanophosphors, respectively...

article

Synthesis Characterization, Antimicrobial, Antioxidant, and Cytotoxic Activities of ZnO Nanorods on Reduced Graphene Oxide

R. Rajeswari, H. Gurumallesh Prabu

Journal of Inorganic and Organometallic Polymers and Materials > 2018 > 28 > 3 > 679-693

Zinc oxide (ZnO) nanorods decorated on reduced graphene oxide (RGO) nanocomposite was synthesized by one-pot hydrothermal synthesis. The morphology and the properties of the synthesized RGO–ZnO composites were characterized by XRD, FT-IR, Raman spectroscopy, FE-SEM-EDAX, HR-TEM, UV–Vis spectroscopy, and X-ray photo spectroscopy techniques. The antimicrobial properties of the graphene nanocomposite...

chapter

FMRI Brain Artifact Due to Normalization: A Study

J. SatheeshKumar, R. Rajesh, S. Arumugaperumal, C. Kesavdass, more

Communications in Computer and Information Science > Informatics Engineering and Information Science > Networks > 306-319

Medical Imaging is an application of image processing in which normalization is one of the important process involved in most of the medical image analysis. Normalization is the process of mapping source image with same stereotaxic space. This can be done by registering each image to the same template, where template can be constructed by considering average of large number of high resolution MRImages...

chapter

A novel background subtraction using canonical correlation analysis

P. Ramya, R. Rajeswari

2016 IEEE International Conference on Advances in Computer Applications (ICACA) > 377 - 380

2016 IEEE International Conference on Advances in Computer Applications (ICACA)

Background subtraction is a basic task of video analysis. Many methods have been proposed earlier for background subtraction, it is still challenging. In the present work, a novel method using canonical correlation analysis for background subtraction is proposed. The correlation between current image and background image obtained through canonical correlation analysis is used to detect the foreground...

chapter

A hybrid FCM-ALO based technique for image segmentation

P. Parvathi, R. Rajeswari

2016 IEEE International Conference on Advances in Computer Applications (ICACA) > 342 - 345

2016 IEEE International Conference on Advances in Computer Applications (ICACA)

Image segmentation is one of the essential tasks in the field of computer vision. This paper proposes a new image segmentation approach based on Fuzzy C Means (FCM) and Ant Lion Optimization (ALO). FCM has the ability to represent ambiguous information in a more robust way. Bio-inspired algorithms such as ALO have the ability to find optimal parameters in search spaces. These characteristics of FCM...

article

Plasma circulating cell-free mitochondrial DNA in the assessment of Friedreich's ataxia

Subrahamanyam Dantham, Achal K. Srivastava, Sheffali Gulati, Moganty R. Rajeswari

Journal of the Neurological Sciences > 2016 > 365 > C > 82-88

Friedreich's ataxia (FRDA) is one of the most devastating childhood onset neurodegenerative disease affecting multiple organs in the course of progression. FRDA is associated with mitochondrial dysfunction due to deficit in a nuclear encoded mitochondrial protein, frataxin. Identification of disease-specific biomarker for monitoring the severity remains to be a challenging topic. This study was aimed...

article

Structural aspects of the interaction of anticancer drug Actinomycin-D to the GC rich region of hmgb1 gene

Neelam Lohani, Himanshu Narayan Singh, R. Rajeswari Moganty

International Journal of Biological Macromolecules > 2016 > 87 > C > 433-442

The high mobility group box 1 protein has been identified as a key player in chromatin homeostasis including transcription regulation, recombination, repair, and chromatin remodeling. Emerging findings indicate HMGB1 protein over expression in nearly all types of human cancers and inflammatory disorders. Thus it is considered as a potential therapeutic target for treating various malignancies. We...

chapter

Dominator coloring of Quadrilateral Snake, Triangle Snake graph and Barbell graph

T. Manjula, R. Rajeswari

2016 Second International Conference on Science Technology Engineering and Management (ICONSTEM) > 115 - 119

2016 Second International Conference on Science Technology Engineering And Management (ICONSTEM)

A graph G is said to have a dominator coloring if it has a proper coloring in which every vertex of the graph dominates all vertices of atleast one color class. The dominator chromatic number Xd (G) is the least number of colors required for a dominator coloring of G. The dominator chromatic number for Quadrilateral Snake graph, Triangle Snake graph and Barbell graph are derived and also the relationship...

article

Dynamic Resource Allocation Scheme for MIMO-OFDMA Multicast System

N. Janakiraman, P. Nirmal Kumar, R. Rajeswari, C. Kumar Charlie Paul, more

Proceedings of the National Academy of Sciences, India Section A: Physical... > 2016 > 86 > 2 > 187-199

This paper presents a dynamic resource allocation technique for multicast service in multi-antenna based OFDMA system. The simulation result indicates that the proposed method provides 7–33 % improved performance in terms of subcarrier and data rate allocation for each user compared with previous achievements. The SoC implementation of this proposed method gives a maximum transfer rate of 400 Mbps...

chapter

Unscented Kalman filter based nonlinear state estimation case study — Nonlinear process control reactor (Continuous stirred tank reactor)

M. Shyamalagowri, R. Rajeswari

2016 10th International Conference on Intelligent Systems and Control (ISCO) > 1 - 6

2016 10th International Conference on Intelligent Systems and Control (ISCO)

In this paper, UKF has been applied to a highly nonlinear CSTR, in order to investigate the performance achieved by the state and parameter estimator. The Unscented Kalman Filter has become a standard technique used in a number of nonlinear estimation. The use of the UKF to a broader class of nonlinear estimation problems, including nonlinear system identification, training of neural networks, and...

chapter

Adaptive voltage detection controlled based single phase UPQC

P. Venkatesh Kumar, R. Rajeswari

2016 10th International Conference on Intelligent Systems and Control (ISCO) > 1 - 5

2016 10th International Conference on Intelligent Systems and Control (ISCO)

This paper deals with a new control strategy for single phase UPQC based on a discrete system model. The single-phase unified power-quality conditioner (SP-UPQC) is treated as a typical switched linear system due to its typical switching dynamic characteristics. The performance of the UPQC mainly depends on control strategy used to generate reference current for shunt active power filter (APF) and...

article

A Modified Frame Difference Method Using Correlation Coefficient for Background Subtraction

P. Ramya, R. Rajeswari

Procedia Computer Science > 2016 > 93 > C > 478-485

Background subtraction is one of the most important step in video surveillance which is used in a number of real life applications such as surveillance, human machine interaction, optical motion capture and intelligent visual observation of animals, insects. Background subtraction is one of the preliminary stages which are used to differentiate the foreground objects from the relatively stationary...

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INFONA - science communication portal

Search results for: R. Rajeswari

Microbial fuel cell–based self‐powered biosensor for environment monitoring in IoT cloud framework

A trusted fuzzy based stable and secure routing algorithm for effective communication in mobile adhoc networks

Assessment of cell-free levels of iron and copper in patients with Friedreich’s ataxia

Studies on structural, optical and thermal properties of Fe₃O₄ (NR)/ZrO₂ CSNCs synthesized via green approach for photodegradation of dyes

Statistical Analysis of Partial Discharge, Lightning Impulse and BDV Characteristics of Nano SiO₂-Corn Oil for HV Insulation Applications

Viscoelastic and acoustic characterization of polyurethane‐based acoustic absorber panels for underwater applications

Investigations into process mechanics of rough and finish die sinking EDM using pulse train analysis

Internet of Things Based Industrial Automation Using Brushless DC Motor Application with Resilient Directed Neural Network Control FED Virtual Z-Source Multilevel Inverter Topology

Enhanced light harvesting with novel photon upconverted Y2CaZnO5:Er3+/Yb3+ nanophosphors for dye sensitized solar cells

Synthesis Characterization, Antimicrobial, Antioxidant, and Cytotoxic Activities of ZnO Nanorods on Reduced Graphene Oxide

FMRI Brain Artifact Due to Normalization: A Study

A novel background subtraction using canonical correlation analysis

A hybrid FCM-ALO based technique for image segmentation

Plasma circulating cell-free mitochondrial DNA in the assessment of Friedreich's ataxia

Structural aspects of the interaction of anticancer drug Actinomycin-D to the GC rich region of hmgb1 gene

Dominator coloring of Quadrilateral Snake, Triangle Snake graph and Barbell graph

Dynamic Resource Allocation Scheme for MIMO-OFDMA Multicast System

Unscented Kalman filter based nonlinear state estimation case study — Nonlinear process control reactor (Continuous stirred tank reactor)

Adaptive voltage detection controlled based single phase UPQC

A Modified Frame Difference Method Using Correlation Coefficient for Background Subtraction

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