Search Results - "Tewari, Surya P."

Isoconversional Kinetic Analysis of Decomposition of Nitroimidazoles: Friedman method vs Flynn–Wall–Ozawa Method by Venkatesh, M, Ravi, P, Tewari, Surya P

“…We have investigated the decomposition kinetics of imidazole, 2-nitroimidazole, and 4-nitroimidazole using TG-DTA technique under nitrogen atmosphere…”
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Femtosecond Ablation of Silicon in Acetone: Tunable Photoluminescence from Generated Nanoparticles and Fabrication of Surface Nanostructures by Hamad, Syed, Podagatlapalli, G. Krishna, Vendamani, V. S, Nageswara Rao, S. V. S, Pathak, A. P, Tewari, Surya P, Venugopal Rao, S

“…Silicon (Si) nanoparticles (NPs) and self-organized high spatial frequency laser (HSFL) induced periodic surface structures were fabricated by means of…”
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Structural, electronic, bonding, and elastic properties of NH3BH3: A density functional study by Lingam, Ch. Bheema, Babu, K. Ramesh, Tewari, Surya P., Vaitheeswaran, G.

“…The structural, electronic, bonding, and elastic properties of the low‐temperature orthorhombic phase of NH3BH3 are studied by means of first‐principles total…”
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Isoconversional kinetic analysis of decomposition of nitropyrazoles by Ravi, P., Vargeese, Anuj A., Tewari, Surya P.

“…► Azoles undergo peculiar decomposition mechanism. ► Pyrazole and C-nitropyrazoles decomposed by multi step kinetics. ► N-nitropyrazole decomposed by single or…”
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Incorporation of Support Vector Machines in the LIBS Toolbox for Sensitive and Robust Classification Amidst Unexpected Sample and System Variability by Dingari, Narahara Chari, Barman, Ishan, Myakalwar, Ashwin Kumar, Tewari, Surya P, Kumar Gundawar, Manoj

“…Despite the intrinsic elemental analysis capability and lack of sample preparation requirements, laser-induced breakdown spectroscopy (LIBS) has not been…”
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Synthesis of Amino, Azido, Nitro, and Nitrogen-Rich Azole-Substituted Derivatives of 1H-Benzotriazole for High-Energy Materials Applications by Srinivas, Dharavath, Ghule, Vikas D., Tewari, Surya P., Muralidharan, Krishnamurthi

“…The amino, azido, nitro, and nitrogen‐rich azole substituted derivatives of 1H‐benzotriazole have been synthesized for energetic material applications. The…”
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Laser-induced breakdown spectroscopy-based investigation and classification of pharmaceutical tablets using multivariate chemometric analysis by Myakalwar, Ashwin Kumar, Sreedhar, S., Barman, Ishan, Dingari, Narahara Chari, Venugopal Rao, S., Prem Kiran, P., Tewari, Surya P., Manoj Kumar, G.

“…► LIBS and chemometrics used for classification of pharmaceutical tablets. ► PCA and SIMCA were used for classification and prediction. ► First three principle…”
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Shockwave and cavitation bubble dynamics of atmospheric air by Leela, Ch, Bagchi, S., Tewari, Surya P., Kiran, P. Prem

“…The generation and evolution of laser induced shock waves (SWs) and the hot core plasma (HCP) created by focusing 7 ns, 532 nm laser pulses in ambient air is…”
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Two-photon and three-photon absorption in dinaphthoporphycenes by Venugopal Rao, S., Shuvan Prashant, T., Swain, Debasis, Sarma, Tridib, Panda, Pradeepta K., Tewari, Surya P.

“…[Display omitted] ► Five different porphycenes were studied using Z-scan technique and 2ps pulses. ► Large values of n2 recorded for all the molecules. ►…”
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Ultrafast Excited-State Dynamics and Dispersion Studies of Third-Order Optical Nonlinearities in Novel Corroles by Anusha, P. T, Swain, Debasis, Hamad, S, Giribabu, L, Prashant, T. Shuvan, Tewari, Surya P, Rao, S. Venugopal

“…Ultrafast nonlinear optical (NLO) properties of four novel Corroles in the visible spectral range (660–800 nm) were evaluated using picosecond Z-scan…”
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Structural, thermodynamic and optical properties of MgF2 studied from first-principles theory by RAMESH BABU, K, BHEEMA LINGAM, Ch, AULUCK, S, TEWARI, Surya P, VAITHEESWARAN, G

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Molecular formation dynamics of 5-nitro-2,4-dihydro-3H-1,2,4-triazol-3-one, 1,3,5-trinitroperhydro-1,3,5-triazine, and 2,4,6-trinitrotoluene in air, nitrogen, and argon atmospheres studied using femtosecond laser induced breakdown spectroscopy by Sreedhar, Sunku, Nageswara Rao, E., Manoj Kumar, G., Tewari, Surya P., Venugopal Rao, S.

“…Femtosecond laser induced breakdown spectroscopic (LIBS) studies were performed on three high energy materials namely…”
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First principles calculations of LiNH2 BH3, LiNH3 BH4, and NaNH2 BH3 by Chittari, Bheema Lingam, Tewari, Surya P.

“…The structural, bonding and elastic properties of alkali amidoboranes (LiNH2 BH3, LiNH3 BH4, and NaNH2 BH3) have been studied. We employ first principles…”
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Growth of superhydrophobic Zinc oxide nanowire thin films by Shaik, Ummar Pasha, Kshirsagar, S., Krishna, M. Ghanashyam, Tewari, Surya P., Dhar Purkayastha, Debarun, Madhurima, V.

“…The growth of ZnO nanowire films by the annealing of Zn films deposited onto borosilicate glass and quartz substrates, at 500°C, is demonstrated. The as…”
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Thermal decomposition kinetics of 1-methyl-3,4,5-trinitropyrazole by Ravi, P., Gore, Girish M., Sikder, Arun K., Tewari, Surya P.

“…► 1-Methyl-3,4,5-trinitropyrazole (MTNP), a next generation melt cast explosive was synthesized in two step reaction. ► The compound showed good thermal…”
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Theoretical studies on nitrogen rich energetic azoles by Ghule, Vikas Dasharath, Sarangapani, Radhakrishnan, Jadhav, Pandurang M., Tewari, Surya P.

“…Different nitro azole isomers based on five membered heterocyclics were designed and investigated using computational techniques in order to find out the…”
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Dynamical and statistical behavior of discrete combustion waves: a theoretical and numerical study by Bharath, Naine Tarun, Rashkovskiy, Sergey A, Tewari, Surya P, Gundawar, Manoj Kumar

“…We present a detailed theoretical and numerical study of combustion waves in a discrete one-dimensional disordered system. The distances between neighboring…”
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Picosecond nonlinear optical studies of unsymmetrical alkyl and alkoxy phthalocyanines by Anusha, P.T., Reeta, P. Silviya, Giribabu, L., Tewari, Surya P., Rao, S. Venugopal

“…We present our results on picosecond nonlinearities in unsymmetrical alkyl and alkoxy phthalocyanines, studied using the Z-scan technique. Both open and closed…”
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Theoretical studies on the structure and detonation properties of amino-, methyl-, and nitro-substituted 3,4,5-trinitro-1H-pyrazoles by RAVI, P, GORE, G. M, VENKATESAN, V, TEWARI, Surya P, SIKDER, A. K

“…In this study, 3,4,5-trinitro-1H-pyrazole (R20), 3,4,5-trinitro-1H-pyrazol-1-amine (R21), 1-methyl-3,4,5-trinitro-1H-pyrazole (R22), and…”
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A DFT Study on the Structures and Energies of Isomers of 4-Amino-1,3-dinitro-1,2,4-triazol-5-one-2-oxide: New High Energy Density Compounds by Ravi, Pasupala, Tewari, Surya P., Ramaswamy, Ramakrishna

“…Isomers of 4‐amino‐1,3‐dinitrotriazol‐5‐one‐2‐oxide (ADNTONO) are of interest in the contest of insensitive explosives and were found to have true local energy…”
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