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Chinese Physics Letters 2010年第10期27卷 80-83页

作者： srinivasa rao karumuri School of Sciences and Humanities Sri Viveka Institute of Technology (SVIT) Madalavari Gudem Nunna Krihna District-521212 India

Using a U （2） algebraic model the fundamental stretching vibrations of copper octaethyl porphyrin and magnesium octaethyl porphyrin are calculated for 24 vibrational bands. The locality parameter ξ confirms the highly local behavior of the stretching modes of these porphyrin molecules. The model Hamiltonian so constructed appears to describe the vibrational energy levels accurately.

关键词： Models Vibration Porphyrins

Vibrational Spectroscopy of Stretching and Bending Modes of Nickel Tetraphenyl Porphyrin： an Algebraic Approach

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Chinese Physics Letters 2009年第9期26卷 122-125页

作者： srinivasa rao karumuri Joydeep CHOUDHURY Nirmal Kumar SARKAR Ramendu BHATTACHARJEE Department of Physics P.B. Siddhartha College of Arts and Sciences Vijayawada-520010 India Department of Physics Assam (a central) University Silchar- 788011 India Department of Physics Karimganj College Karimganj-788710 India

We calculate the vibrational frequencies of nickel tetraphenyl porphyrin for 36 vibrational bands by using the U（2） algebraic approach. The algebraic parameters in the calculations are accurate with the experimental... 详细信息

关键词： sea surface nonliear interaction numerical method

Vibrational Spectroscopy of CH/CD Stretches in Propadiene： An Algebraic Approach

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Chinese Physics Letters 2009年第2期26卷 36-38页

作者： Joydeep Choudhury Nirmal Kumar Sarkar srinivasa rao karumuri Ramendu Bhattacharjee Department of Physics Assam University Silchar- 788011 India Department of Physics Karimganj College Karimganj-788710 India

Using Hamiltonian based on Lie algebraic method, the stretching vibrational modes of C3H4 and C3D4 molecules are calculated up to higher overtones. The model appears to describe C-H and C-D stretching modes with less number of parameters. The locality parameter ξ confirms the highly local behaviour of the stretching modes of these molecules.

关键词： No English Keywords

Resonance Raman spectroscopy of red blood cells using lie algebraic technique

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Natural Science 2012年第10期4卷 792-796页

作者： J. Vijayasekhar srinivasa rao karumuri Uma Maheswara rao Velagapudi Department of Mathematics Jawaharlal Nehru Technological University Kakinada Kakinada India Department of Electronics & Instrumentation Engineering Lakireddy Bali Reddy College of Engineering Vijayawada India Department of Applied Mathematics College of Science & Technology Andhra University Visakhapatnam India

Raman spectra of oxygenated and deoxygenated functional erythrocytes are calculated by using Lie algebraic technique. The results are obtained by this method is accuracy with the experimental data. So, the algebraic t... 详细信息

关键词： Raman Spectroscopy Red Blood Cell Lie Algebraic Technique Vibrational Assignments

Vibrational spectra of distorted structure Macro &Nano molecules: An algebraic approach

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Journal of Biophysical Chemistry 2012年第3期3卷 259-268页

作者： srinivasa rao karumuri J. Vijayasekhar Velagapudi Uma Maheswara rao Ganganagunta Srinivas Aappikatla Hanumaiah Department of Electronics & Instrumentation Lakireddy Bali Reddy College of Engineering Mylavaram India Department of Mathematics GITAM University Hyderabad India Department of Applied Mathematics Andhra University Vishakhapatnam India Department of Physics KL University Guntur India Department of Sciences & Humanities Lara Vigyan Institute of Science & Technology Vadlamudi India

Using the Lie algebraic method the vibrational frequencies of 97 resonances Raman lines (A1g + B1g + A2g + B2g) and 38 infrared bands (Eu) of octaethylporphyrinato-Ni (II) and its mesodeuterated and 15N-substituted derivates and Fullerenes C60 and Cv70 of 7 vibrational bands are calculated using U(2) algebraic Hamiltonian with four fitting algebraic parameters. The results obtained by the algebraic technique have been compared with experimental data;and they show great accuracy.

关键词： Lie Algebra Vibrational Spectra Ni (OEP) Ni (OEP)-d4 & Ni (OEP)-N4 and Fullerenes

Vibrational spectra of oxygen and nitrogen-bridged iron octaethylporphyrin dimers by an U(2) algebraic

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Journal of Biophysical Chemistry 2011年第3期2卷 310-315页

作者： srinivasa rao karumuri J. Vijayasekhar Sreeram Venigalla Venkata Basaveswara rao Mandava Uma Maheswara rao Velagapudi Department of Electronics & Instrumentations Lakireddy Bali Reddy College of Engineering Mylavaram India Department of Mathematics GITAM University Hyderabad India Department of Chemistry P. G. Centre P. B. Siddhartha College Vijayawada India Department of Chemistry Krishna University Machilipatnam India Department of Applied Mathematics Andhra University Vishakapatnam India

Using U (2) algebraic model Hamiltonian the resonance Raman spectra of Oxygen bridged iron porphyrin dimers (OEPFe)2O and (OEPFe)2N calculated for selected some vibrational modes. Using this model the Hamiltonian so c... 详细信息

关键词： Vibrational Spectra Lie Algebra Octatehylporphyrin

Overtone spectra of porphyrins and its substituted forms: an algebraic approach

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Journal of Biophysical Chemistry 2010年第2期1卷 119-132页

作者： srinivasa rao karumuri A. S. R. Prasad Nirmal Kumar Sarkar Joydeep Choudhury Ramendu Bhattacharjee 不详

We introduce an algebraic model to vibrations of polyatomic Bio-molecules and present, as an example, the vibrational analysis of Cm-H, Cm-C, Cm-D, Cb-Cb, pyrrol breathing and Cb-C, stretching modes of Metalloporphyrins and its substituted forms. The excited energy levels of Cb-C, pyrrol breathing stretching modes of Ni(OEP) and Ni(OEP)-d4 are calculated by using U(2) algebraic mode Hamiltonian. The higher excited energy levels of Cm-H, Cm-C, Cm-D and Cb-Cb vibrational modes of Porphyrin and its substituted forms are predicted upto second overtone. It shows that the energy levels are clustering at the higher overtones. The results obtained by this method are accuracy with experimental data.

关键词： Algebraic Model Vibrational Spectra Energy Levels Metalloporphyrins

Effect of Co Doping on Structural and Optical Properties of Zinc Oxide Nanoparticles Synthesized by Sol-Gel Method

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Advances in Nanoparticles 2016年第1期5卷 83-89页

作者： Aravapalli Vanaja karumuri Srinivisa rao Department of Physics Lingaya’s University Old Faridabad India Department of ECE KL University Andhra Pradesh India

In the present work Pure and Cobalt (Co) doped Zinc Oxide (ZnO) Nanoparticles were synthesized by Sol-gel method. The effect of Co doping on structural and optical properties of Nanoparticles were investigated using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) spectroscopic characterization techniques. The XRD spectrum revealed the formation of Wurtzite structure of ZnO. The structural properties of nanoparticles including particle size and lattice strain were calculated from XRD data. SEM shows the morphology of Nanoparticles. The presence of functional groups was analyzed from FTIR spectra. The properties of Cobalt doped zinc oxide nanoparticles prepared through simple cost effective, Sol-gel method can be used in optoelectronics and thermally stable devices.

关键词： Nanoparticles Structural Properties Optical Properties X-Ray Diffraction Scanning Electron Microscopy ZnO