Search results for: N. Srinivasa Rao

Items from 1 to 20 out of 44 results

article

Structural and Morphological Modifications Induced by Fe Ion Implantation in Sb₂Te₃ Thin Films

Jyoti Yadav, Anoop M. Divakaran, Nisha Yadav, Rini Singh, more

Macromolecular Symposia > 399 > 1 > n/a - n/a

Recently, considerable interest has been initiated by the influence of magnetic dopants as well as the generation of internal strain on the transport properties of topological insulators. The controlled bulk charge carriers in topological insulators help in removing barriers for surface‐dominated transport. In this work, the impact of Fe‐ion implantation on the structural and optical properties of...

article

Existence-uniqueness of solutions for fuzzy nabla initial value problems on time scales

R. Leelavathi, G. Suresh Kumar, M. S. N. Murty, R. V. N. Srinivasa Rao

Advances in Difference Equations > 2019 > 2019 > 1 > 1-11

This paper is devoted to studying the existence and uniqueness of solutions of fuzzy nabla dynamic equations on time scales under Hukuhara differentiability. We apply the Banach contraction mapping principle to establish existence and uniqueness solution for fuzzy nabla initial value problems on time scales and also obtain existence result using Ascoli’s theorem and Schauder’s fixed point theorem.

article

Caristi type cyclic contraction and common fixed point theorems in bipolar metric spaces with applications

G. N. V. Kishore, Ravi P. Agarwal, B. Srinuvasa Rao, R. V. N. Srinivasa Rao

Fixed Point Theory and Applications > 2018 > 2018 > 1 > 1-13

In this paper, we obtain the existence and uniqueness of the solution for three self mappings in a complete bipolar metric space under a new Caristi type contraction with an example. We also provide applications to homotopy theory and nonlinear integral equations.

article

Effects of annealing on quality and stoichiometry of HfO2 thin films grown by RF magnetron sputtering

Arun Vinod, Mahendra Singh Rathore, N. Srinivasa Rao

Vacuum > 2018 > 155 > C > 339-344

In this paper, the effects of annealing temperature on HfO₂ thin films prepared by RF sputtering have been investigated. Thin films of hafnium oxide were deposited using sputtering onto p-type Si substrates and the pristine films were annealed at different temperatures in air atmosphere to obtain crystallinity. The Raman and XRD results of the as-deposited films show amorphous nature, whereas the...

article

Risk factors for cardiovascular disease in obese children

T. Chandrasekhar, M. M. Suchitra, M. Pallavi, P. V. L. N. Srinivasa Rao, more

Indian Pediatrics > 2017 > 54 > 9 > 752-755

Objective To study the prevalence of cardiovascular risk factors in pediatric obesity. OMethods 50 obese children (age 5–17y) and 50 apparently healthy non-obese children (body mass index of over 95th percentile and between 5th to 95th percentiles, respectively) using Centre for Disease Control growth charts were included. Fasting blood sugar, lipid profile, insulin, homeostasis model assessment...

article

Effects of Annealing Temperature on Structural, Optical and Electrical Properties of Ge Nanocrystals Embedded in GeO_x Matrix

Mahendra Singh Rathore, Arun Vinod, N. Srinivasa Rao

Macromolecular Symposia > 376 > 1 > n/a - n/a

In this paper, the effects of annealing temperature on the growth of Ge nanocrystals embedded in GeO_x matrix have been investigated. GeO_x thin films deposited on Si and quartz substrates using electron beam evaporation were annealed under nitrogen ambience at 650, 750 and 850 °C. The pristine and annealed samples have been characterized using X‐ray diffraction, Raman spectroscopy, Atomic force microscopy,...

article

Development of regression equation to study the Total Nitrogen, Total Phosphorus and Suspended Sediment using remote sensing data in Gujarat and Maharashtra coast of India

Merin Mariam Mathew, N. Srinivasa Rao, Venkata Ravibabu Mandla

Journal of Coastal Conservation > 2017 > 21 > 6 > 917-927

This study focuses on the assessment of the concentration of water nutrients, such as Total Nitrogen and Total Phosphorus, and suspended sediments in the northern Arabian Sea using MODIS Aqua and Terra data. The in-situ data of water nutrient concentration was collected during the period 2002–2010 by COMAPS from the coastal waters of Gujarat and Maharashtra for the development of algorithms as a part...

article

Evolution and sub-surface characteristics of a sea-surface temperature filament and front in the northeastern Arabian Sea during November–December 2012

P. Vipin, Kankan Sarkar, S.G. Aparna, D. Shankar, more

Journal of Marine Systems > 2015 > 150 > Complete > 1-11

We used satellite-derived sea-surface-temperature (SST) data along with in-situ data collected along a meridional transect between 18.85 and 20.25°N along 69.2°E to describe the evolution of an SST filament and front during 25 November to 1 December in the northeastern Arabian Sea (NEAS). Both features were ~100km long, lasted about a week, and were associated with weak temperature gradients (~0.07°Ckm...

chapter

Mutual coupling reduction between array elements using 3D EBG

K. Praveen Kumar, S S G N Srinivasa Rao, S. Giridhar Abhishek, M. P. S. Gayathri, more

2015 Global Conference on Communication Technologies (GCCT) > 525 - 529

2015 Global Conference on Communication Technologies (GCCT)

A 3D electromagnetic band gap structure proposed in present paper, exhibiting a property of surface wave band gap. During band gap region 3DEBG never allow neither TE nor TM surface waves. In this paper the band gap property is reveled using two techniques. The results obtained in two techniques are comparatively presented. In later section, the coefficient of mutual is determined by considering square...

article

Simulation of Artificial Intelligent Controller Based DVR for Power Quality Improvement

N. Srinivasa Rao, A. Selwin Mich Priyadharson, J. Praveen

Procedia Computer Science > 2015 > 47 > Complete > 153-167

This paper Presents Simulation study of Dynamic Voltage Restorer based on Photovoltaic system. A Photovoltaic based DVR is used to mitigate the problems of voltage sag and swell. The Maximum Power Point Tracking Algorithm and DC-DC converter is used to extract maximum power from the Photovoltaic system. A Hysteresis based Control strategy is adopted for switching the voltage source Inverter of DVR...

article

Ischemia-modified albumin levels in overt and subclinical hypothyroidism

S. V. Reddy, M. M. Suchitra, V. Pradeep, S. Alok, more

Journal of Endocrinological Investigation > 2015 > 38 > 8 > 885-890

Background Free radical-mediated oxidative stress (OS) has been implicated in the pathogenesis of thyroid disorders. The ischemia-modified albumin (IMA) has been proposed as a marker of protein oxidative damage, which has been found to reflect hypoxic stress. Aim Our aim was to evaluate IMA, malondialdehyde (MDA), and reduced glutathione (GSH) levels in patients with overt hypothyroidism (OHT) and...

article

Hydrogeological and groundwater modeling studies to estimate the groundwater inflows into the coal Mines at different mine development stages using MODFLOW, Andhra Pradesh, India

L. Surinaidu, V.V.S. Gurunadha Rao, N. Srinivasa Rao, S. Srinu

Water Resources and Industry > 2014 > 7-8 > Complete > 49-65

The Singareni Collieries Company Ltd (SCCL) is exploiting coal in the Godavari valley coal fields spread over 5.33km ² in Andhra Pradesh, India. In the area, six workable coal seams have been identified in Barakar formation by the analysis of the geologic logs of 183 bore wells. A finite difference based numerical groundwater flow model is developed with twenty conceptual layers and with a...

article

Ion beam studies of Hafnium based alternate high-k dielectric films deposited on silicon

N. Manikanthababu, T.K. Chan, A.P. Pathak, G. Devaraju, more

Nuclear Inst. and Methods in Physics Research, B > 2014 > 332 > Complete > 389-392

Hafnium based high dielectric constant materials are critical for the state-of-the-art integrated circuit technology. As the size of the transistor decreases, the thickness of the gate dielectric (SiO ₂ ) should be reduced to maintain device capacitance at a desired level. This thickness reduction results in high OFF-state leakage current due to quantum tunneling. Recently alternate high-k...

article

Web-based networking of herbal gardens for exchange of planting material

N. Srinivasa Rao, K.A. Geetha, Satyabrata Maiti

Computers and Electronics in Agriculture > 2014 > 103 > Complete > 26-32

In recent years the demand for medicinal and aromatic plants has grown rapidly at national and international level because of it a vital role in supply nutrients as well as strengthen human’s various VITAL systems to protect from innumerous diseases. The collection, conservation and exchange of planting material of medicinal plants are some of the major problems in this sector. Taking these things...

article

SHI irradiation fluence and energyloss dependence effects on Ge NCs with different initial sizes embedded in SiO2

V. Saikiran, N. Srinivasa Rao, G. Devaraju, A.P. Pathak

Nuclear Inst. and Methods in Physics Research, B > 2014 > 323 > Complete > 14-18

Ge nanocrystals embedded in SiO ₂ have been synthesized by Rapid Thermal Annealing of co-deposited Ge and SiO ₂ samples using RF magnetron sputtering. The dense ionization effects on thus synthesized Ge NCs with ion beam bombardment leading to modification of Ge NCs have been investigated by X-ray diffraction, Raman spectroscopy and Transmission Electron Microscopy. The effects on...

article

Performance Evaluation of Machine Tool Probe for In-process Inspection of 2D and 3D Geometries

Chandrakanth Achelker, N. Srinivasa Rao, R. Rajendra, A. Krishaniah

Procedia Technology > 2014 > 14 > Complete > 244-251

Dimensional measurement of work piece in between the manufacturing process is an essential method to achieve the precision components. The machine tool probing system can measure machined features of work piece placed on the machine table after partial or final machining operation. The in-process machine tool probing system is helpful in minimising the lead time of component by eliminating the unloading...

article

Serum ischaemic-modified albumin levels might not be a marker of oxidative stress in patients with hypothyroidism

Varikasuvu Seshadri Reddy, P. V. L. N. Srinivasa Rao, M. M. Suchitra, Renu Garg

Endocrine > 2014 > 46 > 1 > 169-170

article

A study on prevalence of abnormal glucose tolerance and correlation of insulin resistance with dyslipidemia in South-Indian women with polycystic ovary syndrome

N. Rajendra Prasad, Aparna R. Bitla, M. M. Suchitra, G. Raja Gopal, more

International Journal of Diabetes in Developing Countries > 2014 > 34 > 4 > 188-192

Abnormal glucose tolerance, insulin resistance, obesity and dyslipidemia are all potent cardiovascular risk factors that cluster in women with polycystic ovary syndrome (PCOS). Metabolic abnormalities in PCOS women cannot be explained by presence of obesity alone. The aim of this study is to analyze the prevalence of abnormal glucose tolerance and correlation of insulin resistance with serum lipid...

article

Ion beam irradiation effects on Ge nanocrystals synthesized by using RF sputtering followed by RTA

V. Saikiran, N. Srinivasa Rao, G. Devaraju, G.S. Chang, more

Nuclear Inst. and Methods in Physics Research, B > 2013 > 315 > Complete > 161-164

Here we report the effects of ion beam irradiation on Ge nanocrystals (NCs) embedded in SiO ₂ matrix. The Ge NCs embedded in silicon oxide matrix have been synthesized using RF magnetron co-sputtering technique followed by rapid thermal annealing. Eventually, Ge NCs were irradiated by 120MeV Ag ions with various fluences at room temperature. X-ray diffraction patterns indicate the decrease...

article

Formation of Ge nanocrystals from ion-irradiated GeO2 nanocrystals by swift Ni ion beam

V. Saikiran, N. Srinivasa Rao, G. Devaraju, G.S. Chang, more

Nuclear Inst. and Methods in Physics Research, B > 2013 > 312 > Complete > 1-6

GeO ₂ nanocrystal (NC) thin films were deposited on Si substrate using a magnetron sputtering method and irradiated with swift heavy ions of 80MeV Ni at various fluences ranging from 5×10 ¹² to 1×10 ¹⁴ ions/cm ² . Grazing incidence X-ray diffraction measurements indicate the decrease in average size of NCs with increase in fluence of ion irradiation. Micro-Raman spectroscopy...

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Search results for: N. Srinivasa Rao

Structural and Morphological Modifications Induced by Fe Ion Implantation in Sb₂Te₃ Thin Films

Existence-uniqueness of solutions for fuzzy nabla initial value problems on time scales

Caristi type cyclic contraction and common fixed point theorems in bipolar metric spaces with applications

Effects of annealing on quality and stoichiometry of HfO2 thin films grown by RF magnetron sputtering

Risk factors for cardiovascular disease in obese children

Effects of Annealing Temperature on Structural, Optical and Electrical Properties of Ge Nanocrystals Embedded in GeO_x Matrix

Development of regression equation to study the Total Nitrogen, Total Phosphorus and Suspended Sediment using remote sensing data in Gujarat and Maharashtra coast of India

Evolution and sub-surface characteristics of a sea-surface temperature filament and front in the northeastern Arabian Sea during November–December 2012

Mutual coupling reduction between array elements using 3D EBG

Simulation of Artificial Intelligent Controller Based DVR for Power Quality Improvement

Ischemia-modified albumin levels in overt and subclinical hypothyroidism

Hydrogeological and groundwater modeling studies to estimate the groundwater inflows into the coal Mines at different mine development stages using MODFLOW, Andhra Pradesh, India

Ion beam studies of Hafnium based alternate high-k dielectric films deposited on silicon

Web-based networking of herbal gardens for exchange of planting material

SHI irradiation fluence and energyloss dependence effects on Ge NCs with different initial sizes embedded in SiO2

Performance Evaluation of Machine Tool Probe for In-process Inspection of 2D and 3D Geometries

Serum ischaemic-modified albumin levels might not be a marker of oxidative stress in patients with hypothyroidism

A study on prevalence of abnormal glucose tolerance and correlation of insulin resistance with dyslipidemia in South-Indian women with polycystic ovary syndrome

Ion beam irradiation effects on Ge nanocrystals synthesized by using RF sputtering followed by RTA

Formation of Ge nanocrystals from ion-irradiated GeO2 nanocrystals by swift Ni ion beam

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