McNulty, D. | onAcademic

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journal(27)
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mcnulty, d.(10)

buckley, d. n.(3)

o\"dwyer, c.(3)

deur, a.(3)

leyva, f.(3)

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Now showing items 1 - 16 of 27

1666The long-term risk of atrial fibrillation and associated outcomes after carotid endarterectomy

Zegard, A. Stoodley, M. Banerjee, A. Umar, F. Taylor, RJ. Begaj, I. Mcnulty, D. Griffith, M. Ray, D. Pagano, D. Rothwell, PM. Leyva, F.

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172Pacemaker therapy after cardiac valve replacement surgery: impact on heart failure hospitalizations

Zegard, A. Qiu, T. Mcnulty, D. Evison, F. Marshall, H. Gasparini, M. Leyva, F.

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Vanadium Oxide Polycrystalline Nanorods and Ion-Exchanged Nanotubes for Enhanced Lithium Intercalation

McNulty, D. Buckley, D. N. O\"Dwyer, C.

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P463The long-term risk of heart failure hospitalization after surgical and transcatheter valve replacement

Zegard, A. Qiu, T. Mcnulty, D. Evison, F. Marshall, H. Doshi, SN. Ludman, P. Gasparini, M. Prinzen, F. Leyva, F.

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Structural and Electrochemical Characterization of Thermally Treated Vanadium Oxide Nanotubes for Li-Ion Batteries

McNulty, D. Buckley, D. N. O\"Dwyer, C.

Vanadium oxide nanotubes (VONTs) have been successfully synthesized by hydrothermal treatment of a mixture of vanadium oxide xerogel and nonylamine. Traditionally dodecylamine and hexadecylamine are used as the structure maintaining template. In this study, however, evidence of high quality nanotubes templated with nonylamine is presented. Thermogravimetric analysis was used to determine the temperature at which the amine molecules can be removed from the nanotubes. The removal of amines is desirable as heavy functionalization of VONTs by amine molecules can impede the intercalation of lithium ions. The removal of the amine chains resulted in a change in morphology from pristine nanotubes to polycrystalline vanadium oxide nanorods. High resolution transmission electron microscopy was used to characterize the VONTs before and after annealing to high temperatures. Fourier transform infrared spectroscopy confirmed the removal of the amine template after annealing. Galvanostatic discharge tests were performed to compare the electrochemical behavior of bulk V2O5 powder, VONTs and polycrystalline nanorods (poly-NRs). A comparison of their specific capacity values after the first discharge is also presented.

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A History of Juab Countyby Pearl D. Wilson; June McNulty; David Hampshire

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Winter avalanche activity and weather in a Canterbury alpine basin

McNulty, D. Fitzharris, B. B.

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Polycrystalline Vanadium Oxide Nanorods: Growth, Structure and Improved Electrochemical Response as a Li-Ion Battery Cathode Material

McNulty, D. Buckley, D. N. O\"Dwyer, C.

Thermally removing amine molecules that serve as chemical templates for vanadium oxide nanotubes is demonstrated to significantly improve the performance when tested as a cathode material in Li-ion battery cells. Capacity fading issues associated with blocked intercalation sites on the (010) faces of layered vanadium oxide that form the nanotubes are prevented. Thermal treatment of the nanotubes up to 600 degrees C is shown to cause a specific conversion from nanotubes to polycrystalline nanorods and removal of the organic template. The conversion process was monitored by thermogravimetric analysis, X-ray diffraction, transmission electron microscopy and infra-red spectroscopy. In a potential window of 4.0-1.2 V drawing 30 mu A (C/30), the nanorods show improved specific capacities of similar to 280 mAh g(-1) with a modest 6% capacity fade compared to similar to 8 mAh g-1 with 62% capacity fade for the VONTs. The improvements in specific capacity and cycling performance are due to the successful removal of amine molecules and conversion to nanorods containing nanoscale crystals. The cathode material also demonstrated enhanced energy densities (similar to 700 W h kg(-1)) compared to composites of the same overall weight, without conductive carbon additives or polymeric binders. (C) The Author(s) 2014. Published by ECS. All rights reserved.

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Polluted groundwater. A review of the significant literature : Todd, D K; McNulty, D E O Water Information Center, 1976, 178P

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Vibration in earth moving vechicles : G. J. McNulty, D. Douglas, N. C. Hilyard and P. Colier, pp 913–916. 4 pages, 2 figures, 1 reference)

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Influence of seat cushions on vibrations in earth moving vehicles : N. C. Hilyard, P. Collier, D. Douglas and G. J. McNulty, pp. 527–531. (5 pages, 6 figures, 3 references)

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Behaviour of a temporary anchored sheet pile wall on A1(M) at Hatfield : Symonds, I F; Little, J A; McNulty, T A; Carder, D R; Williams, S G O Transport Road Research Laboratory Research reportN99, 1987, 40P

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Near-field shaft response analysis using the CAVS jointed rock model : Dial, B W; Maxwell, D E; McNulty, E G; Reeves, M Key Questions in Rock Mechanics: Proc 29th US Symposium, Minneapolis, 13–15 June 1988P421–428. Publ Rotterdam: A A Balkema, 1988

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Nuclear targets for a precision measurement of the neutral pion radiative width

Martel, P. Clinton, E. McWilliams, R. Lawrence, D. Miskimen, R. Ahmidouch, A. Ambrozewicz, P. Asratyan, A. Baker, K. Benton, L. Bernstein, A. Cole, P. Collins, P. Dale, D. Danagoulian, S. Davidenko, G. Demirchyan, R. Deur, A. Dolgolenko, A. Dzyubenko, G. Evdokimov, A. Feng, J. Gabrielyan, M. Gan, L. Gasparian, A. Glamazdin, O. Goryachev, V. Gyurjyan, V. Hardy, K. Ito, M. Khandaker, M. Kingsberry, P. Kolarkar, A. Konchatnyi, M. Korchin, O. Korsch, W. Kowalski, S. Kubantsev, M. Kubarovsky, V. Larin, I. Matveev, V. McNulty, D. Milbrath, B. Minehart, R. Mochalov, V. Mtingwa, S. Nakagawa, I. Overby, S. Pasyuk, E. Payen, M. Pedroni, R. Prok, Y. Ritchie, B. Salgado, C. Sitnikov, A. Sober, D. Stephens, W. Teymurazyan, A. Underwood, J. Vasiliev, A. Verebryusov, V. Vishnyakov, V. Wood, M.

A technique is presented for precision measurements of the area densities, rho T, of approximately 5% radiation length carbon and (208)Pb targets used in an experiment at Jefferson Laboratory to measure the neutral pion radiative width. The precision obtained in the area density for the carbon target is +/- 0.050%, and that obtained for the lead target through an X-ray attenuation technique is +/- 0.43%. (C) 2009 Elsevier B.V. All rights reserved.

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Polluted groundwater. A review of the significant literature : Todd, D K; McNulty, D E O Water Information Center, 1976, 178P

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Structural and Electrochemical Characterization of Thermally Treated Vanadium Oxide Nanotubes for Li-ion Batteries

McNulty, D. Buckley, D. N. O'Dwyer, C.

Vanadium oxide nanotubes (VONTs) have been successfully synthesized by hydrothermal treatment of a mixture of vanadium oxide xerogel and nonylamine. Traditionally dodecylamine and hexadecylamine are used as the structure maintaining template. In this study, however, evidence of high quality nanotubes templated with nonylamine is presented. Thermogravimetric analysis was used to determine the temperature at which the amine molecules can be removed from the nanotubes. The removal of amines is desirable as heavy functionalization of VONTs by amine molecules can impede the intercalation of lithium ions. The removal of the amine chains resulted in a change in morphology from pristine nanotubes to polycrystalline vanadium oxide nanorods. High resolution transmission electron microscopy was used to characterize the VONTs before and after annealing to high temperatures. Fourier transform infrared spectroscopy confirmed the removal of the amine template after annealing. Galvanostatic discharge tests were performed to compare the electrochemical behavior of bulk V2O5 powder, VONTs and polycrystalline nanorods (poly-NRs). A comparison of their specific capacity values after the first discharge is also presented.

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1666The long-term risk of atrial fibrillation and associated outcomes after carotid endarterectomy

172Pacemaker therapy after cardiac valve replacement surgery: impact on heart failure hospitalizations

Vanadium Oxide Polycrystalline Nanorods and Ion-Exchanged Nanotubes for Enhanced Lithium Intercalation

P463The long-term risk of heart failure hospitalization after surgical and transcatheter valve replacement

Structural and Electrochemical Characterization of Thermally Treated Vanadium Oxide Nanotubes for Li-Ion Batteries

A History of Juab Countyby Pearl D. Wilson; June McNulty; David Hampshire

Winter avalanche activity and weather in a Canterbury alpine basin

Polycrystalline Vanadium Oxide Nanorods: Growth, Structure and Improved Electrochemical Response as a Li-Ion Battery Cathode Material

Polluted groundwater. A review of the significant literature : Todd, D K; McNulty, D E O Water Information Center, 1976, 178P

Vibration in earth moving vechicles : G. J. McNulty, D. Douglas, N. C. Hilyard and P. Colier, pp 913–916. 4 pages, 2 figures, 1 reference)

Influence of seat cushions on vibrations in earth moving vehicles : N. C. Hilyard, P. Collier, D. Douglas and G. J. McNulty, pp. 527–531. (5 pages, 6 figures, 3 references)

Behaviour of a temporary anchored sheet pile wall on A1(M) at Hatfield : Symonds, I F; Little, J A; McNulty, T A; Carder, D R; Williams, S G O Transport Road Research Laboratory Research reportN99, 1987, 40P

Near-field shaft response analysis using the CAVS jointed rock model : Dial, B W; Maxwell, D E; McNulty, E G; Reeves, M Key Questions in Rock Mechanics: Proc 29th US Symposium, Minneapolis, 13–15 June 1988P421–428. Publ Rotterdam: A A Balkema, 1988

Nuclear targets for a precision measurement of the neutral pion radiative width

Polluted groundwater. A review of the significant literature : Todd, D K; McNulty, D E O Water Information Center, 1976, 178P

Structural and Electrochemical Characterization of Thermally Treated Vanadium Oxide Nanotubes for Li-ion Batteries

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