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11,433 results on '"Reddy, V."'

154. Three-dimensional ferrimagnetic ground state of triangular-lattice system Ca3Co2O6

Author

De, Santanu, Reddy, V. R., and Banerjee, A.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

High temperature one-dimensional (1D) ferromagnetic (FM) chains in Ca3Co2O6 spin system are subjected to a magnetic field and temperature induced first order phase transition (FOPT) to 3D ferrimagnetic (FIM) ground state with decrease in temperature (T). Weak-FM interaction of third nearest-neighbor(nn) interchain removes the frustration effect arising from antiferromagnetic (AFM) interactions of first-nn and second-nn interchains in the underlying triangular-lattice resulting a 3D FIM ordering of 1D FM chains at low T. However, hindered kinetics of FOPT partially masks this tranformation giving rise to coexistence of non-interacting 1D FM chains with 3D-FIM state at low-T. The existence of all these couplings is further confirmed here by random substitution of S = 5/2 magnetic-impurity into the spin chain of original system. It reveals weakening of FM interactions of both intrachain and third-nn surrounding chains respectively without significant modulation in the AFM coupling of first-nn and second-nn interchains. Thus, influence of AFM interactions is enhanced as compared to effective FM coupling with increase of S = 5/2 impurity content resulting instability of 3D long-range FIM state at low-T.

Published
2021

155. Robust perpendicular magnetic anisotropy in Ce substituted yttrium iron garnet epitaxial thin films

Author

Kuila, Manik, Sagdeo, Archna, Longchar, Lanuakum A, Choudhary, R. J., Srinath, S., and Reddy, V. Raghavendra

Subjects
Condensed Matter - Materials Science
Abstract

Cerium substituted yttrium iron garnet (Ce:YIG) epitaxial thin films are prepared on gadolinium gallium garnet (GGG) substrate with pulsed laser deposition (PLD). It is observed that the films grown on GGG(111) substrate exhibit perpendicular magnetic anisotropy (PMA) as compared to films grown on GGG(100) substrate. The developed PMA is confirmed from magneto-optical Kerr effect, bulk magnetization and ferromagnetic resonance measurements. Further, the magnetic bubble domains are observed in the films exhibiting PMA. The observations are explained in terms of the growth direction of Ce:YIG films and the interplay of various magnetic anisotropy terms. The observed PMA is found to be tunable with thickness of the film and a remarkable temperature stability of the PMA is observed in all the studied films of Ce:YIG deposited on GGG(111) substrate., Comment: 7 pages, 10 figures

Published
2021
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156. Novel Visual Effects in Computer Vision of Animation Film Based on Artificial Intelligence

Author

SivaKrishna Reddy, V., Kathiravan, M., Lokeswara Reddy, V., Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Ranganathan, G., editor, Papakostas, George A., editor, and Rocha, Álvaro, editor

Published
2023
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167. Re-entrant phenomenon in diffuse ferroelectric, $BaSn_{0.15}Ti_{0.85}O_{3}$ : Local structural insights and FORC study

Author

Surampalli, Akash, Egli, Ramon, Prajapat, Deepak, Meneghini, Carlo, and Reddy, V. Raghavendra

Subjects
Condensed Matter - Materials Science
Abstract

From the phase diagram as proposed by Lei et.al., [J. App. Phys 101, 084105 (2007)] a $BaSn_{0.15}Ti_{0.85}O_{3}$ is chosen showing a diffuse phase transition between cubic to rhombohedral (C-R) near room temperature. Dielectric analysis confirms a phase transition near room temperature ($T_{C}$ $\approx$ 290 K) and also frequency dispersion in dielectric constant is observed towards low temperature. Polarization and first-order reversal curves (FORC) suggest that the system is in re-entrant phase at low temperatures. Put together, all these electrical characterization results points toward the relaxor behavior in the re-entrant phase. Local probe techniques such as x-ray absorption near edge spectroscopy, Raman and Mossbauer spectroscopy are employed to investigate the local environment changes around this region of low temperature dielectric anomaly. A simple ferroelectric exchange model explaining the low temperature re-entrant behavior is presented from these results., Comment: 11 pages, 8 figures

Published
2021
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168. Sublattice spin reversal and field induced $Fe^{3+}$ spin-canting across the magnetic compensation temperature in $Y_{1.5}Gd_{1.5}Fe_{5}O_{12}$ rare-earth iron garnet

Author

Kuila, Manik, Mardegan, Jose Renato Linares, Tayal, Akhil, Francoual, Sonia, and Reddy, V. Raghavendra

Subjects
Condensed Matter - Materials Science
Abstract

In the present work $Fe^{3+}$ sublattice spin reversal and $Fe^{3+}$ spin-canting across the magnetic compensation temperature ($T_{Comp}$) are demonstrated in polycrystalline $Y_{1.5}Gd_{1.5}Fe_{5}O_{12}$ (YGdIG) by means of in-field $^{57}Fe$ M$\ddot{o}$ssbauer spectroscopy measurements. Corroborating in-field $^{57}Fe$ M$\ddot{o}$ssbauer measurements, both $Fe^{3+}$ & $Gd^{3+}$ sublattice spin reversal has also been manifested with x-ray magnetic circular dichroism (XMCD) measurement in hard x-ray region. Moreover from in-field $^{57}Fe$ M$\ddot{o}$ssbauer measurements, estimation and analysis of effective internal hyperfine field ($H_{eff}$), relative intensity of absorption lines in a sextet elucidated unambiguously the signatures of $Fe^{3+}$ spin reversal, their continuous transition and field induced spin-canting of $Fe^{3+}$ sublattices across $T_{Comp}$. Further, Fe K- (Gd $L_{3}$-) edge XMCD signal is observed to consist of additional spectral features, those are identified from $Gd^{3+}$ ($Fe^{3+}$) magnetic ordering, enabling us the extraction of both the sublattices ($Fe^{3+}$ & $Gd^{3+}$) information from a single edge analysis. The evolution of the magnetic moments as a function of temperature for both magnetic sublattices extracted either at the Fe K- or Gd $L_3$-edge agree quite well with values that are extracted from bulk magnetization data of YGdIG and YIG ($Y_{3}Fe_{5}O_{12}$). These measurements pave new avenues to investigate how the magnetic behavior of such complex system acts across the compensation point., Comment: 9 pages, 9 figures

Published
2021
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169. Radiation Reaction in Non-commutative Electrodynamics

Author

Reddy, V. Veera, Gutti, Sashideep, and Haque, Asrarul

Subjects
Physics - Classical Physics, High Energy Physics - Theory
Abstract

We study the radiation reaction acting on an accelerating charge moving in noncommutative spacetime and obtain an expression for it. Radiation reaction, due to a nonrelativistic point charge, is found to receive a small noncommutative correction term. The Abraham-Lorentz equation for a point charge in noncommutative spacetime suffers from the pre-acceleration and the runaway problems. We explore as an application the radiation reaction experienced by a charge which undergoes harmonic oscillations in a noncommutative plane., Comment: 15 pages, 2 figures

Published
2021
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171. Perioperative Care in Cardiac Surgery: A Joint Consensus Statement by the Enhanced Recovery After Surgery (ERAS) Cardiac Society, ERAS International Society, and The Society of Thoracic Surgeons (STS)

Author

Grant, Michael C., Crisafi, Cheryl, Alvarez, Adrian, Arora, Rakesh C., Brindle, Mary E., Chatterjee, Subhasis, Ender, Joerg, Fletcher, Nick, Gregory, Alexander J., Gunaydin, Serdar, Jahangiri, Marjan, Ljungqvist, Olle, Lobdell, Kevin W., Morton, Vicki, Reddy, V. Seenu, Salenger, Rawn, Sander, Michael, Zarbock, Alexander, and Engelman, Daniel T.

Published
2024
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172. Enhanced Recovery After Surgery Cardiac Society turnkey order set for prevention and management of postoperative atrial fibrillation after cardiac surgery: Proceedings from the American Association for Thoracic Surgery ERAS Conclave 2023

Author

Gregory, Alexander J., Lobdell, Kevin W., Hui, Dawn, Puskas, John, Gaudino, Mario, Crisafi, Cheryl, Reddy, V. Seenu, Chatterjee, Subhasis, Cangut, Busra, Rea, Amanda, Salenger, Rawn, Arora, Rakesh C., Grant, Michael C., Morton-Bailey, Vicki, Hirji, Sameer, and Engelman, Daniel T.

Published
2024
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184. Performance optimization and investigation of metal-cored filler wires for high-strength steel during gas metal arc welding

Author

Thakar Hemenkumar H., Chaudhari Mrunalkumar D., Vora Jay J., Patel Vivek, Das Subhash, Bandhu Din, Gupta Manish, and Reddy V. Suryaprakash

Subjects
metal-cored arc welding, high-strength steel s690ql, heat transfer search algorithm, analysis of variance, Technology, Chemical technology, TP1-1185, Chemicals: Manufacture, use, etc., TP200-248
Abstract

This study examines the utilization of metal-cored filler wire in conjunction with the gas metal arc welding (GMAW) technique for welding high-strength S690QL steel. Since welding parameters significantly impact the bead quality and weld joint integrity, the main objective was to identify the optimal welding parameters. To achieve this, the input variables including the current (A), voltage (V), and gas flow rate (GFR), and their effects were evaluated for reinforcement (R), width (W), depth of penetration (DOP), and the width of the heat-affected zone (HAZ). For a more efficient and cost-effective investigation, a Box–Behnken design, which is based on response surface methodology, was used for bead-on-plate trials. Mathematical regression models, derived from experimental data, were rigorously validated using the analysis of variance, main effects plots, residual analysis, and the R 2 and Adj. R 2 values. Additionally, the heat transfer search (HTS) algorithm was employed for process optimization. While single-objective optimization provided optimal settings for individual responses, simultaneous optimization aimed to strike a balance between multiple, sometimes conflicting, objectives. This comprehensive approach resulted in specific values, including a reinforcement (R) of 4.285 mm, a width (W) of 9.906 mm, a DOP of 2.039 mm, and an HAZ width of 2.020 mm. These values were achieved with specific input parameters: current (221 A), voltage (24 V), and GFR (21 L·min−1). The Pareto solutions offered a nuanced selection of the most suitable configuration, taking into account the desired values for R, W, DOP, and HAZ. The close alignment between predicted and experimentally measured values for the responses highlights the precision and suitability of the HTS algorithm in estimating critical bead geometries during GMAW of S690QL plates.

Published
2023
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186. Analysis of Segmented Spectrograms for Human Activity Recognition via Neural Network

Author

Dixit, Avinash, Kulkarni, Vinay, Reddy, V. V., Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Maji, Pradipta, editor, Huang, Tingwen, editor, Pal, Nikhil R., editor, Chaudhury, Santanu, editor, and De, Rajat K., editor

Published
2023
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188. Dragon Fruit Stem Disease Detection Using Image Processing

Author

Rakesh Kumar, Y., Satyanarayana Goud, P., Radha Krishna, V., Arrabotu, Chandra Shaker, Samhitha Reddy, V., Sahithi, G., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Seetha, M., editor, Peddoju, Sateesh K., editor, Pendyala, Vishnu, editor, and Chakravarthy, Vedula V. S. S. S., editor

Published
2023
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189. IoT-based Fire Analyzer and Fire Fighting System

Author

Begum, Shaik Fayaz, Yaswanthi, K., Yogitha, R., Reddy, V. Sreenath, Maaz, S. Mohammad, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Kumar, Amit, editor, Gunjan, Vinit Kumar, editor, Hu, Yu-Chen, editor, and Senatore, Sabrina, editor

Published
2023
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190. Experimental Study on Mechanical Behavior of Corn-Based Reinforced Composites Using Taguchi Approach

Author

Manubolu, Venugopalnaidu, Reddy, V. Diwakar, Kalapala, Prasad, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Haddar, Mohamed, Editorial Board Member, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Sethuraman, Balaguru, editor, Jain, Pushpdant, editor, and Gupta, Manoj, editor

Published
2023
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192. Numerical Analysis of Supersonic Axisymmetric Inlet with Single Ramp

Author

Reddy, V. Phaninder, Govardhan, D., Babu, A. Rathan, Varun, V., Raghavender, V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Haddar, Mohamed, Editorial Board Member, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Maurya, Ambrish, editor, Srivastava, Anmesh Kumar, editor, Jha, Pradeep Kumar, editor, and Pandey, Shailesh Mani, editor

Published
2023
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193. Malware Analysis Using Machine Learning

Author

Karampudi, Bahirithi, Phanideep, D. Meher, Reddy, V. Mani Kumar, Subhashini, N., Muthulakshmi, S., Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Abraham, Ajith, editor, Pllana, Sabri, editor, Casalino, Gabriella, editor, Ma, Kun, editor, and Bajaj, Anu, editor

Published
2023
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195. An Accurate Swine Flu Prediction and Early Prediction Using Data Mining Technique

Author

Kolli, Srinivas, Obaid, Ahmed J., Saikumar, K., Reddy, V. Sivakumar, Kumar, Amit, Series Editor, Suganthan, Ponnuthurai Nagaratnam, Series Editor, Haase, Jan, Series Editor, Senatore, Sabrina, Editorial Board Member, Gao, Xiao-Zhi, Editorial Board Member, Mozar, Stefan, Editorial Board Member, Srivastava, Pradeep Kumar, Editorial Board Member, Rai, Bipin Kumar, editor, Kumar, Gautam, editor, and Balyan, Vipin, editor

Published
2023
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196. Real-Time Data Mining-Based Cancer Disease Classification Using KEGG Gene Dataset

Author

Reddy, Parvathala Balakesava, Obaid, Ahmed J., Reddy, V. Sivakumar, Saikumar, K., Kumar, Amit, Series Editor, Suganthan, Ponnuthurai Nagaratnam, Series Editor, Haase, Jan, Series Editor, Senatore, Sabrina, Editorial Board Member, Gao, Xiao-Zhi, Editorial Board Member, Mozar, Stefan, Editorial Board Member, Srivastava, Pradeep Kumar, Editorial Board Member, Rai, Bipin Kumar, editor, Kumar, Gautam, editor, and Balyan, Vipin, editor

Published
2023
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197. Movie Tag Prediction System Using Machine Learning

Author

Mehta, Vivek, Singh, Tanya, Reddy, K. Tarun Kumar, Reddy, V. Bhanu Prakash, Jain, Chirag, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Khanna, Ashish, editor, Polkowski, Zdzislaw, editor, and Castillo, Oscar, editor

Published
2023
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198. Hand Gesture Recognition Using CNN

Author

Penchalaiah, N., Reddy, V. Bindhu, Reddy, R. Harsha Vardhan, Akhileswari, Raj, N. Anand, Powers, David M. W., Series Editor, Leibbrandt, Richard, Series Editor, Kumar, Amit, editor, Mozar, Stefan, editor, and Haase, Jan, editor

Published
2023
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200. A Naïve Bayes Approach for Predicting the Skin Allergy Diseases

Author

Geluvaraj, B., Santhosh, K., Sandhya, T., Akshay Reddy, V., Bhaskar, S. V., Sasikala, N., Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Smys, S., editor, Kamel, Khaled A., editor, and Palanisamy, Ram, editor

Published
2023
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