IOSR-JAP   Volume-8 ~ Issue-4 ~ July-August 2016

ABSTRACT: Highly luminescent GSH capped CdTe quantum dots (GSH-CdTe QDs) were prepared through a facile microwave (MW) aided wet chemical method. The mechanism of effective size control through the solvents is proposed. The Small angle X-ray scattering (SAXS) measurements show that the size dispersion of QDs can be precisely controlled through the selection of appropriate solvents. The high boiling point and high loss tangents were found to be effective in controlling the size dispersion in MW aided synthesis. The PL studies show that the sharpness of the emission peaks depends on the size dispersion

Keywords:: GSH(Glutathione),Luminescent, Microwave (MW), Small angle X-ray scattering (SAXS), Quantum dots

[1]. J.H.Bang, and P.V. Kamat, Quantum dot sensitized solar cells. a tale of two semiconductor nanocrystals: CdSe and CdTe, ACS Nano, 3, 2009, 1467–1476.

[2]. A. Kongkanand, K.Tvrdy, K.Takechi, M. Kuno, and P.V. Kamat, Quantum Dot Solar Cells. Tuning Photoresponse through Size and Shape Control of CdSe−TiO2 Architecture, Journal of the American Chemical Society, 130, 2008, 4007–4015.

[3]. A. Faraon, D. Englund, I. Fushman, and J. Vuckovic, Local quantum dot tuning on photonic crystal chips, Applied Physics Letter, 90,2007, 213110.

[4]. A.Hoshino, K.Hanaki, K. Suzuki, and K.Yamamoto, Applications of T-lymphoma labeled with fluorescent quantum dots to cell tracing markers in mouse body, Biochemical and Biophysical Research Communications,314, 2004,46–53.

[5]. H.Han, Z.Sheng, and J. Liang, Electrogenerated chemiluminescence from thiol -capped CdTe quantum dots and its sensing application in aqueous solution, Analytica Chimica Acta, 596,2007,73–78.

ABSTRACT: Ultrasonic velocity, density and viscosity have been measured for two ternary liquid mixtures of aniline+ toluene+ methyl isobutyl ketone and N-methylaniline+ toluene+ methyl isobutyl ketone at 303, 308 and 313K. From the measured data, the acoustical parameters such as adiabatic compressibility, free length, free volume, internal pressure, Gibb's free energy and their excess parameters were calculated. The obtained results support the occurrence of molecular association through intermolecular hydrogen bonding and the excess functions are found to be sensitive to the nature and extent of the interactions taking place in these ternary mixtures.

Keywords: Ternary liquid mixtures, acoustical parameters, molecular interaction.

[1]. A.K.Dash and R.Paikaray, (2014). Der Chem. Sinica, Vol.5,no.1,
[2]. Steevi Felixa, Uma Sivakami and Rose Venis, (2016). World J.Pharmacy & Pharmaceutical Sciences, Vol.5, Issue 5.
[3]. M.K.Praharaj, A.Satapathy, S.Mishra and P.R.Mishra, (2012) J.Chem. & Pharmaceutical Research, 4(4) 1910.
[4]. T. Savitha Jyostna, and N.Satyanarayana, (2005) Ind. J. Chem., 444: 1365.
[5]. D.R.Bhadja,Y.V. Patel and P.H.Parasonia, (2002) Ind. J. Pure & Appl. Phys., 24:47.

ABSTRACT: Industrial activity involves plenty of technical problems to which solutions are sought at various levels, from trouble shooting to complete investigation and modeling of processes or plants, or development of new technologies. The purpose of this investigation is to apply the gamma scanning technique to detect the interface, voids present in pipe lines. The results of experiments performed in a leading petrochemical complex are presented..............

Keywords:Gamma scanning technique, Cesium-137, Scintillation detector, Interface, voids..

[1]. Charlton, J.S., 1986.RadioisotopeTechniques for Problem Solving in Industrial
[2]. Process Plants.LeonardHill.
[3]. Guidebook on radioisotope tracers in industry, 1990.Technical report Series
[4]. No. 316.InternationalAtomicEnergyAgency (IAEA), Vienna.
[5]. Zitny, R., Thyn, J., 1996.Programs For Residence Time distribution analysis, RTD
[6]. Software manuals for data analysis of radiotracer experiments

ABSTRACT: 2.1A and 3.7A GeV –Particles from Dubna Synchrophasetron are used to understand and address some effects in hadron therapy and shielding programming. The NIKFI–BR2 nuclear emulsion is the present target nuclei, like–some human and shield materials. The interaction mean free path with HCNO nuclei is determined. The inelastic interaction cross section is approximated by a power law, which is independent on the energy and expressed in terms of the target mass number. The different characteristics of the present projectile and target fragmentations are investigated experimentally in comparison with the SRIM simulations.......

Keywords: Nuclear Emulsion / High–Energy –Particles / Some Simulations for Hadron Therapy and Shielding Programs.

[1]. J. P. Bondorf, A. S. Botvina, A. S. Iljinov, I. N. Mishustin, and K. Sneppen, Phys. Rep. 257, 133 (1995).
[2]. J. P. Bondorf; Journal de Physique 37/C5, 195 (1976), Proceeding of the EPS topical conference on Large Amplitude Collective Nuclear Motions, Keszthely, Hungary, June 1979.
[3]. J. Miller, 1st International Workshop on Space Radiation Research and 11th Annual NASA Space Radiation Health Investigators, Workshop Arona (Italy), May 27–31, 2000, Physica Medica–Vol. XVII, Supplement 1, 2001.
[4]. I. Schall, D. Schardt, H. Geissel, H. Irnich, E. Kankeleit, G. Kraft, A. Magel, M. Mohar, G. Münzenberg, F. Nickel, C. Scheidenberger, W. Schwab, Nucl. Instr. and Meth. B 117, 221 (1996).
[5]. I. Schall, D. Schardt, H. Geissel, H. Irnich, E. Kankeleit, G. Kraft, A. Magel, M. Mohar, G. Münzenberg, F. Nickel, C. Scheidenberger, W. Schwab, L. Sihver; Adv. Space Res. B 17, 87 (1996).