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Your search keyword '"Patial, Payal"' showing total 24 results
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24 results on '"Patial, Payal"'

10. Routing Topologies and Architecture in Cognitive Radio Vehicular Ad hoc Networks

Author

Bakshi, Priya, Thakur, Prabhat, Patial, Payal, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, 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, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martin, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, 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, Zhang, Junjie James, Series Editor, Singh, Pradeep Kumar, editor, Kar, Arpan Kumar, editor, Singh, Yashwant, editor, Kolekar, Maheshkumar H., editor, and Tanwar, Sudeep, editor

Published
2020
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14. Magnetically Separable Mg−Zn Ferrite Nanoparticles Synthesized Using Ocimum Basilicum Leaf Extract Potentiates Cytotoxicity: In vitro

Author

Sharma, Anjana, primary, Aggarwal, Nupur, additional, Kumar, Naveen, additional, Singh Panwar, Ranvir, additional, Patial, Payal, additional, Kumar Sharma, Nitish, additional, Bala, Kanchan, additional, Sharma, Navdeep, additional, Tripathi, Shalini, additional, Raja, Vaseem, additional, and Malhotra, Saransh, additional

Published
2023
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16. A review on cognitive radio based vehicular ad-hoc network.

Author

Patial, Payal

Subjects
*COGNITIVE radio, *RADIO technology, *WIRELESS communications, *FREQUENCY spectra, *RADIO dramas, *TRAFFIC engineering
Abstract

Cognitive Radio (CR) Technology is the increasing interest in WCSs (Wireless Communication Systems), it is an expected that CR enable VANETs will play a main role on the improvement of communication effective in Vehicular Network. The increasing in the number of the vehicles leads to the issues in the management of the traffic, accidents and insecure data. The data shared between the vehicles on the similar route and control of the traffic used the same technology. In order to overcome the issues, the researchers have developed the different technologies with different applications and technologies. With the increase in the number of the vehicles, the Cognitive Radio VANET is an intelligent solution for the management of the traffic and utilization of the effective and efficient radio spectrum. Cognitive radio is capable of the unemployed spectrum bands. Hence, demand of the wireless communication used as the dynamic apprehension for the scarcity of the radio spectrum. The increased demand for radio spectrum plays a vital role in vehicle management. Cognitive radio is a dynamic allocation approach for minimizing limited access on the wavelengths of the spectrum and exploiting the frequency band. With the introduction of the cognitive radio system, the operators of a VANET can perceive and hopping from one network system to the other in the required spectrum frequencies based on the cognitive radio's atmosphere. [ABSTRACT FROM AUTHOR]

Published
2023
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17. Adsorption of Pb2+using biosynthesized ZnO nanoparticles derived using Azadirachta indica(neem) leaf extract

Author

Kumar, Naveen, Jyoti, Jeevan, Aggarwal, Nupur, Kaur, Arashdeep, Patial, Payal, Kaur, Kirtanjot, Tripathi, Shalini, Singh, Suman, and Raja, Vaseem

Abstract

In the present manuscript, zinc oxide nanoparticles (ZnO NPs) were synthesized using a cost-effective and environmentally benign way utilizing Azadirachta indica(neem) leaf extract (AILE). Rietveld refined X-ray diffractogram of biosynthesized ZnO NPs revealed wurtzite-type hexagonal crystallinity with space group P63mc. The optical spectrum of ZnO NPs carried out using ultraviolet visible-diffuse reflectance spectroscopy (UV-DRS) showed an energy band gap of 3.35 eV. FTIR spectrum of the ZnO NPs fabricated via green synthesis route showed a broad anomaly at 3451 cm−1(hydroxyl group) belonging to phenolic content present in AILE. Microstructural properties were obtained using transmission electron microscopy which showed pseudo-spherical formation of ZnO NPs with an average diameter of particle as 8.5 nm. The TGA-DTA curve of ZnO NPs depicted the thermal stability of synthesized NPs below 405 °C. The study investigated the impact of different parameters, specifically contact time and pH, on the adsorption process on adsorption of Pb2+using ZnO NPs. It was observed that the adsorption process exhibited a strong dependence on pH. To analyze the kinetics of the process, experimental data was assessed using both the pseudo-first-order and pseudo-second-order kinetic equations. The pseudo-first-order model fit of the data at 100 ppm of Pb2+concentration gives the R2= 0.863 with k′= 2 × 10−2min−1, respectively, whereas the pseudo-second-order model gives the better fit with R2= 0.976 which is higher as compared to pseudo-first-order (R2= 0.863). Additionally, the equilibrium data was modeled using Langmuir and Freundlich isotherm models. The value of the equilibrium constant (K) and R2value with the Langmuir model were found to be 0.99 and 0.209, respectively, and for the Freundlich model were 3.176 and 0.97, respectively. The experimental results showed good agreement with the Langmuir isotherm model.

Published
2024
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22. Physicochemical investigations of Pd2+ substituted ZnO nanoflowers for liquefied petroleum gas sensing.

Author

Patial, Payal, Deshwal, Manish, and Kumar, Naveen

Subjects
ZINC oxide synthesis, LIQUEFIED petroleum gas, THIN films, ZINC oxide, RIETVELD refinement, CRYSTAL lattices
Abstract

Present study portrays, physicochemical investigations of pristine and Pd2+ modified ZnO nanoflowers (NFs) compositional series [Zn(1−x)PdxO NFs; where x = 0, 0.01, 0.03, 0.05, and 0.07] synthesized via sol–gel reaction route. X-ray diffractogram of all the compositions displayed hexagonal wurtzite type crystallinity with P63mc space group without any traces of impurities as confirmed from Rietveld refinement technique. It was found that the average crystallite size increased from 32 to 74 nm with Pd2+ intrusion in the crystal lattice framework of ZnO. FESEM micrographs depicted that the surface morphology of pure and Pd modified compositions exhibit flower-shaped surface morphology. The optical properties of as-synthesized NFs were carried out using UV–vis spectroscopy and it was observed that optical energy bandgap (Eg) decreased minutely by Pd2+ doping. To determine the gas sensing behavior of synthesized NFs, the prepared gel during material fabrication was used to cast thin films. The thin films were calcined at 600 °C for LPG gas sensing activity and it was observed that the transient curve shows a high response for the composition x = 0.03 for the concentration of 2000 ppm. The present result illustrates that synthesized NFs showed potential candidature for LPG gas sensing. The present study reveals synthesized NFs showed potential candidature for LPG gas sensing 80 °C with a gas sensitivity of 315%. [ABSTRACT FROM AUTHOR]

Published
2022
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