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• Open Access   Article

  Static Pair Correlation Functions and Static Structure Factors of Unidirectional Quantum Systems

  G. Dhingra

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.1-5, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.15

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  Abstract
  Two of the structural functions, static pair correlation function of electrons around positively charged particles and static structure factor, have been theoretically calculated for a one dimensional quantum system with two mobile components occupying same charge density at equal temperatures. The structural functions have been investigated for their density and mass dependence. The reported values of static pair correlation function and structure factors are found to be dependent upon linear density and mass of positive components. Static pair correlation functions for a wide range of temperature, 100K≤T≤ 1500K, has also been generated theoretically. A variation, though diminutive, with temperature has been observed.

  Key-Words / Index Term
  Static pair correlation function, Static structure factor, Complex dielectric functions, Plasma frequency , Fabrication techniques

  References
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  Citation
  G. Dhingra, "Static Pair Correlation Functions and Static Structure Factors of Unidirectional Quantum Systems," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.1-5, 2019

• Open Access   Article

  FTIR and Energy Dispersive X-ray analysis of medicinal plants, Ocimum gratissimum and Ocimum tenuiflorum

  P. Sakuntala, R. Selva Raju and Kaleem Ahmed Jaleeli

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.6-10, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.610

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  Abstract
  Plant is an important source of medicine and plays a key role in world health. Vibrational and energy dispersive X-ray spectra of leaves, stems and seeds from the two selected indigenous medicinal plants, Ocimum gratissimum and Ocimum tenuiflorum (family : Lamiaceae) have been studied with the help of FTIR and SEM-EDX. FTIR findings indicated the presence of characteristic functional groups like alkanes, alkenes, alkynes, alcohols, amides, amines, carboxylic acid, carbonyl compounds, carbohydrates (glycogen) and halogens. The results of SEM - EDX spectra have shown that the essential elements like Calcium, Magnesium, Copper, Zinc, Oxygen, Sodium, Iron, Selenium and Potassium were present in the selected medicinal plants. The obtained data will be helpful for making medicinal formulation and deciding dosage of the medicine made from these plants.

  Key-Words / Index Term
  Medicinal plants, FTIR, SEM-EDX, Ocimum gratissimum, Ocimum tenuiflorum

  References
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  [10]. Fry RS, Ashwell MS, Lloyd KE, et al. Amount and source of dietary copper affects small intestine morphology, duodenal lipid peroxidation, hepatic oxidative stress and MRNA expression of hepatic copper regulatory proteins in weanling pigs. J Animal Sci.2012;90:3112-19.
  [11]. R. Selva Raju, P.Sakuntala, Kaleem Ahmed Jaleeli, “Elemental status of medicinal plant-Moringa Oleifera”, Journal of Applicable Chemistry, 2019, 8 (2): 491-495.
  

  Citation
  P. Sakuntala, R. Selva Raju and Kaleem Ahmed Jaleeli, "FTIR and Energy Dispersive X-ray analysis of medicinal plants, Ocimum gratissimum and Ocimum tenuiflorum," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.6-10, 2019

• Open Access   Article

  Chemical Spray Pyrolysis pure and Transition Metal doped Structural, Morphological and Optical properties of SnS Thin Films

  S.Selvi, M.Karunakaran and K.Kasirajan

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.11-16, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.1116

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  Cadmium doped tin sulfide (SnS) is a promising low cost photovoltaic material for its direct optical band gap (~ 1.4 eV). In this report cadmium doped tin sulfide thin films were prepared by chemical spray Pyrolysis method. The precursor solution cadmium chloride, tin chloride and thiourea are dissolved in de-ionized water. All the deposited films are characterized by different technique such as structural, morphological and optical properties have been studied. The XRD pattern the films are polycrystalline in nature and orthorhombic structure. The average particle size decreased with increasing transition metal doping concentration. SEM image reveals the cornflake shape. The FTIR spectrum used to confirm the functional group of 569 cm-1 Sn-S bond. The optical transmission spectra of transition metal doped SnS thin films the average transmission 60% in the visible region, the doping level increase the optical band gap values also increased from 1.4- 1.7 eV. PL spectra of all samples exhibited a broad emission in the visible range.

  Key-Words / Index Term
  Sulfide, Transition Metal, XRD, Cornflake shape, Band gap

  References
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  [5] Sajeesh, T. H., Anita R. Warrier, C. Sudha Kartha, and K. P. Vijayakumar. "Optimization of parameters of chemical spray pyrolysis technique to get n and p-type layers of SnS." Thin Solid Films, Vol. 518, Issue. 15, pp 4370-4374, 2010.
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  Citation
  S.Selvi, M.Karunakaran and K.Kasirajan, "Chemical Spray Pyrolysis pure and Transition Metal doped Structural, Morphological and Optical properties of SnS Thin Films," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.11-16, 2019

• Open Access   Article

  Magnetic, Structural And Optical Properties Of Nickel Doped Zinc Sulphide Nanoparticles

  A. Maria Bernadette Leena and K.Raji

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.17-21, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.1721

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  Abstract
  The wide bandgap metal sulfide semiconductors, such as ZnS when doped with transition metal ion Ni2+ have shown promises in versatile applications such as spintronics devices, solar energy conversion, optoelectronics, and photonics. Nickel doping leads to substantial modification in technology for ZnS semiconductors, as it suitably tunes the optical, electrical and magnetic properties of materials. Here 2%, 4%, and 6% of Nickel ion( (Ni2+)is doped with ZnS nanoparticles, which were synthesized via a simple chemical precipitation route. The resultant nanoparticles were characterized by FTIR, UV-Vis spectroscopy, XRD, Photo luminance, SEM, and VSM. The results showed that all the nickel-doped ZnS samples were successfully obtained with a cubic structure with crystallites in 4.5 nm to 5.5nm range. The band gap energies of the Nickel doped ZnS were also estimated by UV –visible absorbance spectra which is found to decrease with the increase of crystallite size. The SEM results showed the appearance cubic structure of the samples. The VSM study showed that these particles have room temperature ferromagnetism or superparamagnetism, essential for the discovery of new spintronic devices.

  Key-Words / Index Term
  Nickel doped ZnS Chalcogenides, co-precipitation, optical properties and superparamagnetic

  References
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  Citation
  A. Maria Bernadette Leena and K.Raji, "Magnetic, Structural And Optical Properties Of Nickel Doped Zinc Sulphide Nanoparticles," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.17-21, 2019

• Open Access   Article

  Synthesis and characterization of different percentage (Fe2+) doped copper oxide (CuO) NPs prepared by chemical method

  N. Subhalakshmi, M. Karunakaran, K. Kasirajan, N.Ganeshwari

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.22-26, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.2226

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  Abstract
  In the last decade the metal oxide NPs are the promising applications in the research field. The lot of methods to available in the synthesis of NPs, but co-precipitation method is very simple, low cost and environmental friendly. The different percentage (Fe2+) doped copper oxide (CuO) NPs prepared by co-precipitation method. XRD pattern confirms the samples are crystalline in monoclinic structure identified by the JCPDS Card. No (80-0076). The doping concentration increases the crystalline size also decreases. CuO NPs based functional groups are identified from FTIR spectra. UV-Vis Spectroscopy the Fe doped CuO has a band gap is determined in the range of 3.57 to 3.62 eV. The Pl emission spectra revealed a blue shift after introducing Fe into CuO structure, from these studies is better for the preparation of CuO nanoparticles. SEM-the surface morphology of the as prepared CuO nanoparticles has identified by SEM studies the indefinite and closely packed grain is observed. The EDAX spectra showed presence copper, Fe and oxygen atoms.

  Key-Words / Index Term
  Co-Precipitation, Doping, Copper Oxide, Structural Studies, Band gap

  References
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  Citation
  N. Subhalakshmi, M. Karunakaran, K. Kasirajan, N.Ganeshwari, "Synthesis and characterization of different percentage (Fe2+) doped copper oxide (CuO) NPs prepared by chemical method," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.22-26, 2019

• Open Access   Article

  Process Development and Characterization of 2-Aminopyridine Potassium Dihydrogen Orthophosphate (2APKDP) Crystal

  D. Sivavishnu, R. Srineevasan and J. Johnson

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.27-33, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.2733

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  Abstract
  A good optical quality bulk size defect free crystal of 2-aminopyridine potassium dihydrogen orthophosphate (2APKDP) was successfully grown from aqueous solution by slow evaporation solution growth technique at room temperature. The presence of functional groups in synthesized compound was identified by FT-IR analysis. Powder XRD pattern of 2APKDP crystal confirms the crystalline nature and (h k l) values are indexed. Single crystal X-ray diffraction analysis shows that the 2APKDP crystal crystallizes in tetragonal crystal system with noncentrosymmetric space group I4. Grown crystals has lower cut off wavelength 290 nm which is confirmed by UV- visible absorption studies and optical band gap was calculated using UV-vis-NIR spectrum data. The mechanical strength of the grown crystals was tested by Vicker’s microhardness tester. The second order nonlinear optical property of the grown sample was analyzed by Kurtz-Perry powder technique. As grown 2APKDP crystal has high SHG efficiency which is 1.2 times that of known KDP. The dielectric constant and dielectric loss of grown 2APKDP crystal has been studied. A laser damage threshold study was carried out for 2APKDP crystal.

  Key-Words / Index Term
  Solution growth, non-centrosymmetric crystal, Band gap, SHG efficiency, LDT

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  Citation
  D. Sivavishnu, R. Srineevasan and J. Johnson, "Process Development and Characterization of 2-Aminopyridine Potassium Dihydrogen Orthophosphate (2APKDP) Crystal," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.27-33, 2019

• Open Access   Article

  Theoretical Studies on Molecular Structure and Vibrational Spectra of 2,4-Difluoro-1-Methoxy Benzene and 1-Chloro-3-Methoxy Benzene

  R.Rajathi Subbulakshmi, E.Palanichamy, M.Arivazhagan and S. Manivel

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.34-48, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.3448

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  Abstract
  The FT-IR and FT-Raman spectra Of 2,4-Difluoro-1-Methoxybenzene (DFMB) and 1-Chloro-3-Methoxy Benzene (CMB) have been recorded in the region 4000-400 cm-1 and 3000-50 cm-1 respectively. The DFT computations were employed at the B3LYP methods with 6-311++G(d,p) basis set to determine the Molecular structure and vibrational frequencies of the molecule. The geometry of the molecules were fully optimized, the assignments of vibrational frequencies were done by Total energy distribution (TED) analysis. The theoretically computed vibrational frequencies of (DFMB) and (CMB) were compared with the reported experimental values.The complete data of these molecules provide the information for future development of substituted benzene. The calculated HOMO-LUMO energy gap reveals that the charge transfer occurs within the molecule.The thermodynamic properties like entropies and their correlations with temperatures were obtained. NLO properties related to polarizability and hyperpolarizability are also discussed.

  Key-Words / Index Term
  FT-IR, FT-Raman, DFMB, CMB, B3LYP, HOMO-LUMO, NLO

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  Citation
  R.Rajathi Subbulakshmi, E.Palanichamy, M.Arivazhagan and S. Manivel , "Theoretical Studies on Molecular Structure and Vibrational Spectra of 2,4-Difluoro-1-Methoxy Benzene and 1-Chloro-3-Methoxy Benzene," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.34-48, 2019

• Open Access   Article

  The numerical analysis of the effect of Grashof number, modified Grashof number and chemical reaction on the non-Darcy MHD flow of a Casson fluid over a nonlinearly stretching sheet in a porous medium

  Bhim Sen Kala

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.49-70, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.4970

  Abstract

  Full-Text HTML

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  Abstract
  In this paper, we have studied the numerical analysis of the effect of Grashof number , modified Grashof number and chemical reaction on the non-Darcy MHD flow of a Casson fluid over a nonlinearly stretching sheet in a porous medium. In the mathematical model, using similarity variables, the momentum , energy and concentration equations are transformed to non-dimensional ordinary differential equations.. And then these are solved numerically using bvp4c method, a Matlab in- built bvp4c-programm. A discussion for the effects of the parameters involved on the boundary layer regions and the magnitude of the velocity, temperature and concentration and Local skin friction , Local Nusselt Number and Local Sherwood Number have been done graphically and numerically using figures and tables.

  Key-Words / Index Term
  Casson fluid, magnetic parameter, darcy parameter, velocity slip parameter, forchheimrer parameter, power index parameter,inclination Grashof number, modified Grashof number

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  [25] Kala Bhim Sen, “Analysis of Non-Darcy MHD flow of a Casson Fluid over a Non-linearly Stretching Sheet with Partial Slip in a Porous Medium”,AJARR, 3(3): 1-15, 2019; Article no.AJARR.47539.

  Citation
  Bhim Sen Kala, "The numerical analysis of the effect of Grashof number, modified Grashof number and chemical reaction on the non-Darcy MHD flow of a Casson fluid over a nonlinearly stretching sheet in a porous medium," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.49-70, 2019

• Open Access   Article

  Molecular Interaction Studies between Methylamine and 2-Nitrobenzoic Acid by Quantum Chemical Calculation (FT-IR, FMO, GCRD, MEP, NLO) and Dielectric Relaxation Analysis

  M. Aravinthraj, F. Liakath Ali Khan, J. Udayaseelan and R. Santhosh Kumar

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.71-82, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.7182

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  Abstract
  The FTIR spectrum of methylamine with 2-nitrobenzoic acid (ma2nba) in liquid phase is recorded and the comprehensive vibrational assignments and PED is attained by the vibrational energy distribution analysis. Ma2cba was theoretically optimized and FMO, nonlinear optical, molecular surfaces and comparison between Mulliken and natural charges were also performed by DFT method with B3LYP/6-311++G(d,p) basis set. The charge transfers in the molecule confirmed by the HOMO and lowest LUMO. Dielectric relaxation parameters like dielectric constant, dielectric loss, average and overall relaxation time, molar free energy of activation for viscous flow and the molar free energy of dielectric relaxation of ma2nba have been calculated over five different molar ratios (1:3, 1:2, 1:1, 2:1, 3:1) at room temperature by Higasi’s method. These parameters are inferred in terms of molecular association and dipolar orientation. Moreover, the relaxation time found maximum at 1:1 molar ratio.

  Key-Words / Index Term
  Quantum Chemical Calculations, B3LYP, HOMO, LUMO, DOS, NBO, NLO, Dielectric Relaxation

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  Citation
  M. Aravinthraj, F. Liakath Ali Khan, J. Udayaseelan and R. Santhosh Kumar, "Molecular Interaction Studies between Methylamine and 2-Nitrobenzoic Acid by Quantum Chemical Calculation (FT-IR, FMO, GCRD, MEP, NLO) and Dielectric Relaxation Analysis," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.71-82, 2019

• Open Access   Article

  Amplification of Plasma Wave through non-linear wave-particle interaction in ionospheric plasma

  P.N.Deka, S.J.Gogoi

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.7 , Issue.3 , pp.83-87, Jun-2019

  CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.8387

  Abstract

  Full-Text HTML

  References

  Citation

  Abstract
  Wave energy up conversion of high frequency plasma wave in presence of low frequency plasma wave are studied in both space and laboratory plasma. In the ionosphere different forms of free energy sources are coexisting and energy exchange process takes place among plasma waves and particles. Through plasma maser effect ionospheric plasma particles may be transferred energy nonlinearly to high frequency mode through a modulated electric field in the presence of electron density gradients. In this paper we have explained how energy from drift wave is transferred to non-resonant ion sound wave. Including plasma inhomogeneity effect in our model the growth rate of ion sound wave in the Earth’s ionosphere in presence of drift wave turbulence estimated using observational data.

  Key-Words / Index Term
  Ionospheric Plasma, Ion sound Wave, Drift Wave, Plasma Maser effect, Non-linear force

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  Citation
  P.N.Deka, S.J.Gogoi, "Amplification of Plasma Wave through non-linear wave-particle interaction in ionospheric plasma," International Journal of Scientific Research in Physics and Applied Sciences, Vol.7, Issue.3, pp.83-87, 2019