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1. Structure and properties of metal nanoparticles on carbon nanostructures

Author

Lodge, R. W.

Subjects
620.1, QD241 Organic chemistry, TP Chemical technology
Abstract

The work presented in the thesis describes the preparation and characterisation of nanoparticle-carbon nanotube composite structures by transmission electron microscopy (TEM) and their applications in catalysis and biomedicine. Identical location TEM (IL-TEM) was utilised for the first time to study the nanoscale structure of composites of catalytic metallic nanoparticles and hollow carbon nanotubes in macroscale, liquid-phase, preparative reactions. IL-TEM analysis of palladium nanoparticles confined within graphitised nanofibres (GNF) indicated that the catalytic nanoparticles undergo changes in mean size and size-dependent migrations within the internal channel of GNF under the conditions of Suzuki-Miyaura reactions. IL-TEM analysis of copper nanoparticles in GNF showed dissolution and reprecipitation of the nanoparticles into strand-like nanostructures under the conditions of the “click” reaction, indicating the pseudo-homogeneous mechanism of this catalysed chemical transformation. A series of metal nanoparticle-GNF catalysts were subject to a range of elevated temperatures and gaseous environments and the corresponding structure-function relationships explored. A copper nanoparticle-GNF catalyst was applied in the industrially-significant water-gas shift reaction (WGSR) and compared to a commercially available, metal oxide-supported catalyst. The commercial catalyst exhibited minimal and expected changes in composition under the WGSR and generally remained stable with no changes in mean size or shape of catalytic nanoparticles. In contrast, the structure and composition of both the catalytic nanoparticles and the GNF substrate was found to significantly change in the novel nanoparticle-GNF catalyst. The effect of pre-treatment temperatures and gaseous environments on the composition and structure of three separate palladium, gold and copper nanoparticle-GNF systems was appraised, evidencing clear structure-function relationships between the size and/or composition of the catalysts at the nanoscale with their catalytic properties (selectivity and/or activity) at the macroscale. Molecule-nanotube interactions were studied towards the development of an effective controlled drug release system. The uptake and release of a chemotherapeutic agent, doxorubicin, from carbon, boron nitride and titania nanotubes, and their corresponding gold nanoparticle composites, was studied. No release of doxorubicin was observed for any structure, even with a plasmonic heating-induced release mechanism for the gold nanoparticle-nanotube composites, due to the strength of the host-guest interaction between the drug and the nanotubes.

Published
2017

3. Who is at risk of death from nephrectomy? An analysis of thirty‐day mortality after 21 380 nephrectomies in 3 years of the British Association of Urological Surgeons (BAUS) National Nephrectomy Audit

Author

Fernando, Archie, Fowler, Sarah, Van Hemelrijck, Mieke, OʼBrien, Tim, Abbasi, Z., Adamson, A. S., Addla, S. K., Adeyoju, A. A., Adshead, J. M., Afzal, N., Aho, T. F., Akhtar, M., Al‐Akraa, M., Al‐Sudani, M., Alam, A., Allan, J., Almond, D. J., Anderson, C. J., Andrews, S. J., Apakama, I., Armitage, T., Armitage, J., Awsare, N., Ayres, B., Banerjee, G. K., Barber, N. J., Barua, J. M., Basu, S., Bdesha, A. S., Beacock, C. J. M., Beatty, J., O Beck, R., Belal, M., Bell, C. R. W., Bhanot, S. M., Bhatt, R., Bhatti, A., Biyani, C. S., Blacker, A. J., Blades, R. A., Blake, C., Blake‐James, B., Boddy, J., Bromage, S. J., Bromwich, E., Brown, C., Browning, A. J., Bryan, N. P., Burgess, N. A., Burns‐Cox, N., Butterworth, P. C., Bycroft, J., Calleary, J. G., Calvert, R. C., Campbell, I., Campbell, C. A., Cannon, A., Carter, P. G., Carter, C. J. M., Cartledge, J. J., Casey, R., Chakravarti, A., Challacombe, B., Chandrasekharan, S., Chappell, B. G., Chaudry, A., Chen, T. F., Cherian, J., Choi, W. H., Chow, K., Clavijo Eisele, J., Cliff, A. M., Cohen, N. P., Cole, O. J., Collins, J., Connolly, S., Cooke, P. W., Cooksey, G., Cornaby, A. J., Cornford, P. A., Corr, J. G., Coulthard, R., Cranston, D. W., Cresswell, J., Crundwell, M. C., Cutinha, P. E., Cynk, M., Daruwala, P. D., Dasgupta, P., Datta, S. N., Davenport, K., de Bolla, A. R., Devarajan, R., Dickerson, D. A. G., Dickinson, A. J., Doherty, A. P., Donaldson, P. J., Dudderidge, T., Dyer, J., Eaton, J., Eddy, B., Eden, C. G., Elsaghir, M., Evans, S. D., Fiala, R., Fordham, M. V. P., Foster, M. C., French, A. J., Frymann, R. J., Gall, Z. J., Gallegos, C. R. R., Gana, H. B. Y., Garnett, S., Ghei, M., Gibbons, N., Gilbert, H. W., Gillatt, D. A., Glackin, A., Godbole, H. C., Golash, A., Goodman, C. M., Gowardhan, B., Green, J. S. A., Griffiths, T. R. L., Gujral, S., Gunendran, T., Hagan, C. M., Haldar, N., Hanbury, D. C., Harney, J., Hasan, S. T., Hawkyard, S. J., Hayes, M. C., Haynes, M. D., Henderson, A., Hicks, J. A., Hindley, R. G., Hodgson, D. J., Hotston, M., Howell, G. P., Hrouda, D., Hughes, O. D. M., Hunter‐Campbell, P., Ilie, C., Issa, R., Jain, S., Jain, A., Janjua, K. S., Javle, P., Johnson, P., Johnson, M. I., Jones, A., Joshi, H., Joyce, A. D., Kanaga‐Sundaram, S., Karim, O. M. A., Keeley, F. X., Kelkar, A., Kelleher, J. P., Khan, A., Khattak, A. Q., Khoubehi, B., Kimuli, M., Kirollos, M. M., Kockelbergh, R. C., Kooiman, G., Koupparis, A., Kumar, P., Kynaston, H. G., Laniado, M. E., Larner, T., Latif, Z., Lau, M. W., le Roux, P. J., Leung, S., Leveckis, J., Lewis, G., Liston, T. G., Lockyer, C. R. W., Lodge, R. N., Luscombe, C. J., Lynch, M., Lynch, C., Lynn, N. N. K., MacDermott, J. P., Mackie, S., Madaan, S., Maddineni, S.B., Maheshkumar, P., Makar, A. A., Makunde, J. T., Manikandan, R., Mann, G. S., Mantle, M., Mark, I. R., Matanhelia, S. S., McCabe, J., McClinton, S., McFarlane, J. P., McInerney, P. D., McIntyre, I. G., McLarty, E., McLornan, M. E., McLoughlin, J., McNeill, S. A., Mehta, S., Mellon, J. K., Menezes, P., Mills, R. D., Mokete, M., Montague, R., Morton, A. L., Motiwala, H. G., Mulholland, C. K., Mumtaz, F. H., Munro, N., Myatt, A., Nair, M., Namasivayam, S., Napier‐Hemy, R. D., Nathan, S., Neilson, D., Nicol, D. L., Nuttall, M., OʼBrien, T. S., OʼKane, H. F., OʼRiordan, A., Oades, G., Oakley, N., Okeke, A. A., Olsburgh, J., Paez, E., Page, T., Parkin, J., Parys, B. T., Patel, P., Patel, N., Patel, B., Pathak, S., Patil, K., Paul, A. B., Payne, D., Peracha, A. M., Peters, J. L., Phillips, S. M. A., Phillips, J. T., Phipps, S., Pillai, M. K., Potter, J. M., Prescott, S., Rajan, T. N., Rajjayabun, P., Ramani, V. A. C., Rane, A., Ravi, R., Ravichandran, S., Riddick, A. C. P., Rimington, P. D., Rix, G. H., Rix, D., Robinson, L. Q., Rochester, M., Rogawski, K. M., Rogers, A. G., Rowe, E., Sahadevan, K., Samsudin, A., Sandhu, S., Sangar, V. K., Sells, H., Shackley, D. C., Shah, Z., Shaikh, N. N. A., Sharma, H., Sherwood, B., Singh, S., Singh, G., Smith, D. J., Solomon, L., Soomro, N. A., Srinivasan, V., Sriprasad, S. I., Stephenson, R. N., Stewart, A., Stubington, S. R., Subramonian, K., Sullivan, M. E., Taneja, S., Thilagarajah, R., Thomas, S. A., Thomas, D. J., Thomas, B., Thompson, A. C., Thurston, A.V., Turner, K. J., Umez‐Eronini, O. N., Upsdell, S. M., Vale, J. A., Varadaraj, H., Vesey, S. G., Viney, R., Vohra, A. K., Walton, T., Warburton, H. E., Waymont, B., Webster, J. J., Webster, G. M., Wedderburn, A., Wemyss‐Holden, G. D., Weston, R., Whittlestone, T., Wilkinson, S., Wilkinson, B., Williams, S., Wills, M. I., Wilson, J. R., Wilson, I. D., Woodhouse, C. R. J., Wright, M., Yates, D. R., and Young, J. G.

Published
2017
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9. Sociolinguistique historique et histoire de la langue française

Author

Lodge, R. Anthony

Subjects
History, Language & Linguistics, histoire, linguistique historique, HB, enseignement, HIS000000, sociolinguistique, langue, étude, langage, ethnolinguistique
Abstract

Introduction Un aspect curieux de l’état actuel des sciences humaines, c’est le régime d’apartheid qui sépare les sciences de l’histoire des sciences du langage. Il convient de féliciter les organisateurs du colloque « Langue et Histoire » pour avoir enfin cherché à joindre les deux bouts de cette chaîne. Notre contribution débutera par des remarques générales concernant les rapports entre histoire et linguistique, avant d’entamer une discussion sur la branche de la linguistique qui est sans ...

Published
2021

24. Autonomous Target Allocation Recommendations

Author

Marsh, L, Cochrane, M, Lodge, R, Sims, B, Traish, J, Xu, R, Marsh, L, Cochrane, M, Lodge, R, Sims, B, Traish, J, and Xu, R

Abstract

We consider the problem of land vehicles under attack from a number of unmanned aerial systems. As the number of unmanned aerial systems increase, it may become difficult for human operators to coordinate actions across vehicles in a timely manner. In this paper, we study a number of algorithms designed to recommend actions to operators that will maximise the survivability of the vehicle fleet. We present a comparison of several assignment approaches including evolutionary strategies, genetic algorithms, multi-armed bandits, probability trees and basic heuristics. The performance of these algorithms is analysed across six different simulated scenarios. Our findings indicate that while there was no single best approach, Evolution Strategies, Ensemble and Genetic Algorithms were the strongest performers. It was also seen that a number of heuristic algorithms and the multi-armed bandits approach offered reliable performance in a number of scenarios without the need for any training.

Published
2021

36. The story of hedgerow and pond

Author

Lodge, R. B., Lodge, George Edward, Smithsonian Libraries, Lodge, R. B., and Lodge, George Edward

Subjects
Birds, England, Water birds

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