Academic literature on the topic 'NIREX'

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Journal articles on the topic "NIREX"

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Michie, U. McL, and R. A. Bowden. "UK NIREX geological investigations at Sellafield." Proceedings of the Yorkshire Geological Society 50, no. 1 (October 1994): 5–9. http://dx.doi.org/10.1144/pygs.50.1.5.

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Colasanti, R., D. Coutts, S. Y. R. Pugh, and A. Rosevear. "The microbiology programme for UK Nirex." Experientia 47, no. 6 (June 1991): 560–72. http://dx.doi.org/10.1007/bf01949878.

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McCarter, W. J., I. Crossland, and T. M. Chrisp. "Hydration and drying of Nirex Reference Vault Backfill." Building and Environment 39, no. 2 (February 2004): 211–21. http://dx.doi.org/10.1016/j.buildenv.2003.08.010.

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Smith, M. J. S., S. V. Barlow, and I. L. S. Gray. "Packaging and Transport of Waste to the Nirex (UK) Repository." International Journal of Radioactive Materials Transport 7, no. 2-3 (January 1996): 205–16. http://dx.doi.org/10.1179/rmt.1996.7.2-3.205.

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Mathieson, John, John Dalton, and Ben Russell. "Long-Term Radioactive Waste Management in the United Kingdom—Nirex Perspective." Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management 9, no. 1 (January 2005): 20–32. http://dx.doi.org/10.1061/(asce)1090-025x(2005)9:1(20).

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Masood, Ehsan. "Nirex chief expected to lose seat on UK's nuclear waste panel." Nature 386, no. 6625 (April 1997): 531. http://dx.doi.org/10.1038/386531b0.

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Verrall, Maggie. "Nirex to appeal after permission refused for 'rock lab' at Sellafield." Nature 373, no. 6509 (January 1995): 3. http://dx.doi.org/10.1038/373003c0.

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Johnston, Kathy. "BNFL and Nirex in deep water over nuclear waste disposal plans." Nature 329, no. 6137 (September 1987): 278. http://dx.doi.org/10.1038/329278a0.

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Barlow, S., N. Carr, and R. W. T. Sievwright. "NIREX Transport Activities since Rejection of the Rock Characterisation Facility Planning Application." International Journal of Radioactive Materials Transport 11, no. 1-2 (January 2000): 63–71. http://dx.doi.org/10.1179/rmt.2000.11.1-2.63.

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Vasconcelos, Rita G. W., Andres Idiart, Neil C. Hyatt, John L. Provis, and Claire L. Corkhill. "Leaching of Nirex Reference Vault Backfill cement by clay, granite and saline groundwaters." MRS Advances 3, no. 21 (2018): 1175–80. http://dx.doi.org/10.1557/adv.2018.248.

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For the UK geological disposal facility (GDF) concept in a high strength crystalline rock, Nirex Reference Vault Backfill (NRVB) has been considered to use as a cementitious backfill material. The lifetime performance of this high pH material is required to be extremely long, and as a consequence of the interaction with the geological environment (e.g. groundwater), the backfill material will evolve and age with time. In this paper, we present the results of a leaching experiment, where NRVB is placed in contact with three different groundwater compositions representative of granitic, clay and saline groundwater for 35 days. Some differences were observed related with the mineralogy. X-ray Diffraction results showed the formation of more ettringite, mainly in the NRVB samples leached in clay and saline groundwater. An increase of the pH was also observed in the NRVB samples leached with the three different ground waters, being these results in accordance with the reactive transport modelling performed.
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Dissertations / Theses on the topic "NIREX"

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Telchadder, Ryan Nigel. "Solubility studies of radionuclides at high pH in the presence of a radioactive waste repository vault backfill." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/solubility-studies-of-radionuclides-at-high-ph-in-the-presence-of-a-radioactive-waste-repository-vault-backfill(b6d30b83-d232-4f24-b655-7b5f0bb7028a).html.

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Batch experiments have been used to assess the sorption properties of a potential repository backfill, NRVB (Nirex Reference Vault Backfill). In this study, UO22+, Eu3+, Am3+ and Th4+ have been used as model radionuclides and ethylenediaminetetraacetic acid (EDTA), isosaccharinic acid (ISA) and humic acid (HA) as competing ligands. The NRVB is an effective scavenger of all radionuclides, with the majority sorbed within minutes. Ultrafiltration showed that for solutions of U in contact with NRVB, for the small amount of U remaining in solution, nearly all (79 %) was present as clusters or colloidal material in a very narrow and relatively small size range (0.9 – 1.4 nm); for Eu (> 94 %) is attached to large NRVB derived colloids or particulates; for Th (82 %) is present in the true solution; whilst for Am 58 % is in the true solution. High concentrations of EDTA (>0.01 M) were able to reduce the extent of sorption at apparent equilibrium for all metal ions. ISA was very effective as a competing ligand for all metal ions, generally at a lower concentration than EDTA in equivalent systems. Humic acid was found to be ineffective as a competing ligand at any realistic concentration. In all systems, there was evidence of significant irreversibility, with concentrations of EDTA and ISA that were able to prevent sorption unable to remove radionuclides from contaminated NRVB. For the uranyl systems, luminescence spectroscopy was used to analyse the mechanism of sorption. For CSH (calcium silicate hydrate), the spectra were consistent with surface complexation, followed by some degree of incorporation. For NRVB, the spectrum was dominated by a feature that was similar to uranyl sorbed to CSH as a surface complex and/or incorporated into the structure. There was also a minor component that was assigned as a calcium uranate like surface precipitate. The sorption data were fitted with a simple surface complexation model, which had a single surface binding site. The modelling showed that the uptake of all radionuclides is consistent with surface complexation or surface precipitation. The model was less effective at predicting the effects of the competing ligands on sorption. Thermodynamic speciation and surface complexation modelling were able to explain the behaviour in the systems qualitatively, but cannot be used to predict sorption absolutely.
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Allred, Lee Kurt. "Correlation and Kalman filter tracking solutions for the NRL NIPEX algorithm." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA303385.

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Choi, Halim. "Framework for reporting non-rigid image registration performance." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/1130.

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Tuduks, Oholiabs D. "Dysfunctional exclusion within Christian/Muslim relationships in Gombe state, Nigeria : a co-pathic approach." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96483.

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Thesis (MTh)--Stellenbosch University, 2015.
ENGLISH ABSTRACT: Dysfunctional exclusion between Christians and Muslims in Northern Nigeria in general, and Gombe State in particular, is understood to be a trigger of religious crises in Northern Nigeria. History has shown that Northern Nigeria has been experiencing religious crises from 1980 to the present. The crises have grossly affected the relationship between these two religious groups, despite the fact that they all live in the same community and in some cases in the same family. The reoccurrence of religious crises has created fear and suspicion of one another between the adherents of the two religions, thus giving more ground to the practice of dysfunctional exclusion. In 1999, the Nigeria Supreme Council for Islamic Affairs (NSCIA) and the Christian Association of Nigeria (CAN) formed a forum, called the Nigeria Inter-Religious Council (NIREC), for the purpose of tackling the problems of dysfunctional exclusion and religious crises between Christians and Muslims. Dialogue is one of the most relied approaches adopted by NIREC in addressing the challenges. Unfortunately the application of dialogue among the Christians and Muslims in Gombe state has not been effective as the problem of dysfunctional exclusion persist. This calls for reconsideration of the application of dialogue or to consider an alternative approach which will effectively deal with the dysfunctional exclusion among the two religious adherents in Gombe state. As a contribution to the fight against dysfunctional exclusion, I suggests a co-pathic approach. The research question is can co-pathy effectively contribute in addressing the challenge of dysfunctional exclusion within Christian/Muslim relationships? This will be answered with a focus on the outlined goals of the research following the methodology of Richard Osmer (2008) – the four tasks of practical theology. First, the descriptive-empirical task; this task answers the question what is going on? It examines the practice of dysfunctional exclusion among the Christians and Muslims. Second, the interpretive task, which answers the question why is this going on? This will discuss the concept of co-pathy, and its relevant application to the Christian/Muslim relationship. Third, the normative task; this task answers the question what ought to be going on? It explores a co-pathic theological foundation for interreligious understanding. And lastly, the pragmatic task answers the question how might we respond? This presents, in the concluding chapter, the contribution of the research to the fight against dysfunctional exclusion. The research will create an awareness of a pluralistic religious society and the need for interreligious understanding and consciousness. Co-pathy will be used as a point of convergence between Muslims and Christians and will stand at the centre of their relationships, as both religions recognise and value the virtue of co-pathy. This will motivate the life of togetherness in passion, thus paving the way for the recognition of each other‘s religion with regard, tolerating religious practices, and considering one another as members of the same community without religious segregation. The research is significant, as the issue of dysfunctional exclusion dehumanises and triggers religious crises, which have claimed many lives in the northern states of Nigeria.
AFRIKAANSE OPSOMMING: Wanfunksionele uitsluiting onder Christene en Moslems in Noord-Nigerië in die algemeen, en in Gombe Staat spesifiek, gee aanleiding tot godsdienstige krisisse in Noord-Nigerië. Die geskiedenis toon dat Noord-Nigerië sedert 1980 godsdienstige krisisse ervaar. Hierdie krisisse het 'n groot effek op die verhouding tussen hierdie twee godsdienstige groepe, ten spyte daarvan dat hulle almal in dieselfde gemeenskap, en soms in dieselfde gesin, woon. Die herhaling van godsdienstige krisisse het gelei tot vrees en agterdog tussen die navolgers van die twee godsdienste, wat nog meer gronde gee vir die praktyk van wanfunksionele uitsluiting. In 1999 het die Nigeria Supreme Council for Islamic Affairs (NSCIA) en die Christian Association of Nigeria (CAN) 'n forum gevorm met die naam Nigeria Inter-Religious Council (NIREC) om probleme met betrekking tot wanfunksionele uitsluiting en godsdienstige krisisse tussen Christene en Moslems te hanteer. Dialoog is die benadering wat die meeste deur NIREC gebruik word om die uitdagings aan te spreek. Ongelukkig was die toepassing van dialoog tussen Christene en Moslems in Gombe Staat nie effektief nie, aangesien die probleem van wanfunksionele uitsluiting voortduur. Dit vereis dus 'n heroorweging van die toepassing van dialoog, of om 'n alternatiewe benadering te oorweeg wat doeltreffend met die wanfunksionele uitsluiting onder die twee godsdienstige groeperinge in Gombe Staat sal kan handel. As 'n bydrae tot die stryd teen wanfunksionele uitsluiting, stel ek 'n ko-patiese (copathic) benadering voor. My navorsingsvraag is kan ko-patie doeltreffend bydra tot die aanspreek van die uitdaging van wanfunksionele uitsluiting in Christen/Moslemverhoudings. Dit sal beantwoord word deur te fokus op die doelwitte van die navorsing volgens die metodologie van Richard Osmer (2008) – die vier take van praktiese teologie. Eerstens, die beskrywende-empiriese taak; dit antwoord die vraag, wat gaan aan? Dit ondersoek die praktyk van wanfunksionele uitsluiting onder Christene en Moslems. Tweede, die verklarende taak, wat die vraag beantwoord – hoekom gaan dit aan? Hier sal ek die konsep van ko-patie en die relevante toepassing daarvan op die Christen/Moslem-verhouding bespreek. Derdens, die normatiewe taak; hierdie taak antwoord die vraag, wat behoort aan te gaan? Dit verken 'n ko-patiese teologiese fondament vir intergodsdienstige verstandhouding. En laastens, die pragmatiese taak, wat die vraag, hoe kan ons reageer? beantwoord. In die finale hoofstuk stel ek die bydrae van hierdie navorsing voor in die stryd teen wanfunksionele uitsluiting. Hierdie navorsing sal bewussyn skep van 'n pluralistiese godsdienstige samelewing en die behoefte aan intergodsdienstige begrip en bewussyn. Ko-patie sal gebruik word as 'n punt van konvergensie tussen Moslems en Christene en sentraal in hulle verhoudings staan, aangesien beide godsdienste die deug van ko-patie erken en waarde daaraan heg. Dit sal die lewe van samesyn in passie motiveer en dus die weg berei vir die erkenning van mekaar se godsdiens met agting, die verdra van godsdienstige praktyke en 'n beskouing van mekaar as lede van dieselfde gemeenskap sonder godsdienstige afsondering. Die navorsing is betekenisvol omdat die kwessie van wanfunksionele uitsluiting mense ontmens en godsdienstige krisisse veroorsaak, wat al baie lewens in die noordelike state van Nigerië geëis het.
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Ussishkin, Adam. "Target = kazzef (nonword); prime = nibex (real word)." 2010. http://hdl.handle.net/10150/320412.

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Ussishkin, Adam. "Target = nibex (real word); prime = sinaġ (nonword)." 2010. http://hdl.handle.net/10150/317303.

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Books on the topic "NIREX"

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NIREX. Nirex Safety Assessment Research Programme: Nirex biosphere research : report on current status in 1994. Edited by Thorne M. C. Harwell, Oxfordshire: United Kingdom Nirex, 1995.

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NIREX. Nirex deep waste repository project: Scientific update 1993. Harwell: NIREX, 1993.

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NIREX. Nirex the facts: A guide to the safe disposal of radioactive waste. Harwell: NIREX, 1994.

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NIREX. Presentation of the Nirex disposal safety research programme CEGB Conference Centre, Didcot Power Station, Oxfordshire 1 November 1988. Harwell, Didcot: UK Nirex, 1988.

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Goodess, C. M. Studies of climatic effects and impacts relevant to deep underground disposal of radioactive waste: Final report to UK NIREX Ltd. England: Climatic Research Unit, School of Environmental Sciences, University of East Anglia, 1991.

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Goodess, C. M. Studies of climatic effects relevant to site selection and to assessments of the radiological impact of disposal at selected sites : NIREX biosphere research programme final report. England: Climatic Research Unit, School of Environmental Sciences, University of East Anglia, 1988.

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Etxebarria, Faustino. Nire gazte denpora. Oiartzun (guipuzcoa): Sendoa, S.A., 1996.

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Unit, University of East Anglia Environmental Risk Assessment. Responses to 'The way forward': Report on comments received on United Kingdom Nirex Limited's discussion document on the development of a respository for the disposal of low and intermediate-level radioactive waste. Norwich: University of East Anglia Environmental Risk Assessment Unit, 1988.

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Smith, Carroll. The story of Princess Nire. Radford, VA: Advanced Information Resources, 1995.

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Morio, Kita. The fall of the house of Nire. Tokyo: Kodansha International, 1985.

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Book chapters on the topic "NIREX"

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Wright, R. F., N. Van Breemen, B. Emmett, J. G. M. Roelofs, A. Tietema, H. A. Verhoef, M. Hauhs, et al. "NITREX — Nitrogen Saturation Experiments." In Responses of Forest Ecosystems to Environmental Changes, 335–41. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2866-7_29.

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Song, Joo Hyun, Gary E. Christensen, Jeffrey A. Hawley, Ying Wei, and Jon G. Kuhl. "Evaluating Image Registration Using NIREP." In Biomedical Image Registration, 140–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14366-3_13.

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Christensen, Gary E., Xiujuan Geng, Jon G. Kuhl, Joel Bruss, Thomas J. Grabowski, Imran A. Pirwani, Michael W. Vannier, John S. Allen, and Hanna Damasio. "Introduction to the Non-rigid Image Registration Evaluation Project (NIREP)." In Biomedical Image Registration, 128–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11784012_16.

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Taguchi, Shoichi. "Synthesis inversion of atmospheric CO2 using the NIRE chemical transport model." In Inverse Methods in Global Biogeochemical Cycles, 239–53. Washington, D. C.: American Geophysical Union, 2000. http://dx.doi.org/10.1029/gm114p0239.

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Maitra Bajpai, Lopamudra. "Folktales and Printed Translations Across the Indian Subcontinent: The Travelling Tales of Niret Guru." In Handbook of the Changing World Language Map, 1–12. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-73400-2_158-1.

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Maitra Bajpai, Lopamudra. "Folktales and Printed Translations Across the Indian Subcontinent: The Travelling Tales of Niret Guru." In Handbook of the Changing World Language Map, 3911–22. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-02438-3_158.

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"Nirex and the search for a site." In Nuclear Waste Politics, 84–109. Abingdon, Oxon ; New York, NY : Routledge is an imprint of the Taylor & Francis Group, an Informa Business, [2017]: Routledge, 2017. http://dx.doi.org/10.4324/9781315767963-4.

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Piette, Adam. "Deep Geological Disposal and Radioactive Time: Beckett, Bowen, Nirex and Onkalo." In Cold War Legacies. Edinburgh University Press, 2016. http://dx.doi.org/10.3366/edinburgh/9781474409483.003.0006.

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This chapter considers nuclear futurity and long-term radioactive half-life and decay as timescales of continuity that are figured in eerie and apocalyptic ways not only in fictions that engage with nuclear anxiety during the Cold War (Elizabeth Bowen and Samuel Beckett) but also in the engineering projects that deal with the inconceivably long aftermath risks in deep underground nuclear waste disposal. Gunther Anders’ 1962 ‘Theses for an Atomic Age’ is compared with late 1980s Nuclear Industry Radioactive Waste Executive (Nirex) reports into the suitability of storing highly radioactive waste in deep boreholes, and pairs literary/cultural speculation with actual storage facility technologies to explore the deep time of nuclear waste continuities beyond the Cold War. The bunker mentality of the high Cold War is addressed through the relation between family nuclear shelters and the underground systems of the nuclear state. Geologist J. Laurence Kulp, who developed radioactive isotope dating of ancient rock formations, inadvertently stumbled on the radioactive effect of nuclear tests. Kulp's discovery led to the test ban treaty of 1963 and consolidated in the public imagination the link between deep geological time, radioactivity, and underground secret tomb/refuge systems. The article ends with a meditation on the contemporary nuclear repository.
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"Northern Industrial Research Expedition (The Northern Expedition, NIRE)." In The Western Arctic Seas Encyclopedia, 288–89. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-25582-8_140058.

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Tietema, A., A. W. Boxman, M. Bredemeier, B. A. Emmett, F. Moldan, P. Gundersen, P. Schleppi, and R. F. Wright. "Nitrogen saturation experiments (NITREX) in coniferous forest ecosystems in Europe: a summary of results." In Nitrogen, the Confer-N-s, 433–37. Elsevier, 1998. http://dx.doi.org/10.1016/b978-0-08-043201-4.50063-0.

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Conference papers on the topic "NIREX"

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Tibballs, Sue, John Dalton, and David Wild. "Corporate Social Responsibility (CSR) and UK Nirex Limited." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4883.

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In recent years, Nirex has been engaged in a fundamental review of its values, objectives and behaviours. The significant shift to emerge from this review has been a commitment to being a responsible organisation. On both ethical and strategic grounds, Nirex believes it will only have a useful role to play in future radioactive waste management debates if it can show that it is a socially responsive and accountable organisation. Important commitments have already been made, and policies introduced, including a Transparency Policy, and an Environmental Policy. Over the same period, there has been a growing discourse and engagement in the UK with Corporate Social Responsibility (CSR). A wealth of organisations and consultants have emerged offering thought leadership and support in this area, some of whom have approached Nirex offering services. The challenge Nirex faces, however, is to understand what relevance and implications the CSR debate has for its work, and its wider commitment to responsibility. Should Nirex have a CSR strategy and produce a CSR report, or does ‘responsibility’ mean something different to Nirex? What would engaging in CSR mean — is there a danger that being responsible would become a stand-alone activity in the organisation, rather than a ‘mainstreamed’ commitment? If Nirex were to produce a CSR report, who would it be aimed at, and how would it fit alongside other corporate communications? In order to help answer these questions, and to develop a clear position and strategy, Nirex asked the Future Foundation to help facilitate input from consultants and other practitioners who have relevant experience. This paper will describe what was undertaken, the results and some thoughts on what this means for the future.
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Barlow, S. V., and J. D. Palmer. "Standards and Specifications for Packaging Waste in the UK." In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1186.

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Abstract The role of Nirex is to provide the United Kingdom with safe and environmentally sound options for the long-term management of radioactive waste generated by the UK’s commercial, medical, research and defence activities. This includes all intermediate level waste and some low level waste (ILW and LLW). One of the key objectives of Nirex over the past 10 years or so, has been to ensure that when waste is packaged, it is in a form suitable for its future safe management including storage, transport, handling and potential disposal. Being responsible for development of future long-term waste management facilities, Nirex is uniquely placed to define standards and performance specifications for waste packages that include wasteform and container design, quality assurance and data recording requirements. In addition to the specifications, Nirex also provides detailed advice on the suitability of specific packaging proposals and plant designs against the foreseen requirements for future transport, handling, storage and potential disposal, as defined by the Nirex phased disposal concept. Where packaging proposals meet these requirements, Nirex is prepared to endorse the proposed approach through the issue of a ‘Letter of Comfort’. This approach has enabled the commencement of waste packaging operations with a high degree of confidence that the waste product will meet future waste management requirements, including potential disposal requirements. This paper provides a summary of the standards and specifications developed by Nirex for waste packages, and of the assessment process applied by Nirex in providing advice and endorsement of specific packaging proposals.
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Wood, P., M. Askarieh, and P. Lock. "The Nirex Coherent Approach to Achieving Criticality Safety." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4839.

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The role of Nirex is to provide the UK with safe, environmentally sound and publicly acceptable options for the long-term management of radioactive materials. This will include all intermediate-level waste and some low-level waste (ILW and LLW). Nirex has developed a Phased Disposal Concept based on conditioning the wastes then isolating them deep underground. Based on this phased disposal concept, Nirex advises waste producers on the conditioning and packaging of radioactive waste. The ILW and LLW which comprise the ‘reference volume’ of the Phased Disposal Concept contain approximately 5 t Pu-239 and 28 t U-235. Nirex’s work is based on a number of standards for safety and environmental protection set by the Government. Three different Regulators ensure application of these standards in the transport, operation and post-closure phases. Therefore a coherent approach to criticality safety is required. The approach to criticality safety begins by avoiding criticality resulting from the way in which the waste is packaged, by controlling the package design including the level of fissile material. The concept safety assessments will support a screening level of approximately 5 g Pu-239 equivalent. In specific cases where waste producers indicate that their proposed packages will not comply with the screening level, package-specific criticality safety assessments can be incorporated into the concept through the change control process. Engineering measures are available to prevent criticality for such time as the waste packaging affords a high level of containment. In the long term, however, after deterioration of the physical containment provided by the waste packages, there would be the possibility of movement of fissile material out of the waste packages and subsequent accumulation into new configurations which could in principle lead to a criticality. It is conceivable that a criticality could adversely impact on the performance of a repository after closure because, for example, of the heat that would be produced affecting the engineered barriers. It is therefore necessary to consider the post-closure criticality safety of the repository concept. Nirex is currently undertaking a programme of work on ‘understanding criticality under repository conditions’. The aim of the programme is to obtain a better understanding of the processes that would control the nature and magnitude of a criticality under the particular conditions of the concept repository. An essential component of demonstrating criticality safety is to ensure waste packagers develop operating arrangements, and provide objective evidence in the form of criticality compliance assurance documentation, to demonstrate how fissile material will be controlled to meet levels defined in concept criticality safety assessments. This paper will describe the coherent approach and the processes by which it is applied.
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Atherton, Elizabeth, and Ann McCall. "Strategic Environmental Assessment and Environmental Impact Assessment as Part of a Stepwise Decision Making Process." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4896.

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Nirex is the organisation responsible for long-term radioactive waste management in the UK. Our Mission is to provide the UK with safe, environmentally sound and publicly acceptable options for the long-term management of radioactive materials. One of the lessons that Nirex has learned from previous experience in the UK and internationally is the importance of developing due process for finding a long-term solution for radioactive waste management. We have been investigating best practice in this area and incorporating the findings into the work that we undertake. Projects which will have an impact on the environment are subject to EC Directives on Strategic Environmental Assessment (SEA) and Environmental Impact Assessment (EIA). The EIA Directive has already been implemented into law within Member States while the SEA Directive has to be implemented by 2004. Nirex believes that radioactive waste management programmes will have to adhere to the principles outlined in the Directives. Nirex has been investigating how the frameworks set out in the Directives could be used to: • Develop a stepwise approach to decision making in the UK; • Engage stakeholders during the stepwise decision making; • Enable stakeholders’ issues and concerns to be addressed. This paper will outline how Nirex has been developing its work in these areas including reference to the Nirex Involvement Programme, which uses different consultation and dialogue techniques to enable people to engage with Nirex’s work programme.
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5

Breen, Brendan, Elizabeth Atherton, and Steve Barlow. "Engaging the Public on Technical Issues." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4876.

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United Kingdom Nirex Limited (Nirex) is responsible for providing the UK with environmentally-sound and publicly-acceptable options for the long-term management of radioactive materials generated by the Nation’s commercial, medical, research and defence activities. An important part of Nirex’s responsibilities in developing these options is to build acceptance of its concepts through effective dialogue and engagement with a wide range of stakeholders. One of the options developed by Nirex for the long-term isolation of intermediate-level and some low-level from the accessible environment is to place these wastes in a deep underground repository, excavated in stable rock formations. The repository would remain accessible to allow future generations to have the choice of continuing to store the waste, or to dispose of the wastes by sealing and closing the repository. In conducting the scientific and technical research on this phased disposal concept, Nirex wanted its work programmes to take account of any public concerns with regard to radioactive waste and its management and proposed to develop its understanding of such concerns through public engagement. In October 2001, Nirex engaged an independent organisation to conduct a series of focus group discussions. Focus group meetings were arranged in 4 locations across the UK, selecting varying groups in terms of age, lifestage and socio-economic circumstances in order to engage a broad cross-section of the UK population. Each group attended two, 2-hour sessions on successive evenings. The first session was a general discussion of the issues of nuclear energy and radioactive waste. The second session focused on the more specific detail of the Nirex Phased Disposal Concept. Explanatory material was given to participants at each session. The work has provided some very useful information on issues, which the focus groups considered significant. The groups were able, in the short time available, to grasp many important issues and to provide their views across a range of technical areas. This work has helped Nirex to better understand ways of engaging the public in technical issues and to appreciate some of the key areas and concerns on the more technical areas associated with phased disposal. Several technical queries were identified, which the facilitators were unable to answer during the focus group discussions — Nirex has subsequently provided answers to these questions and made these available on the Nirex Bibliography. This paper describes the approach taken for the focus groups and outlines key findings from the work and some implications for Nirex in communicating technical issues to the public.
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Horsley, David, and Bruce McKirdy. "The Management of Historic Intermediate Level Radioactive Waste in the United Kingdom." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4897.

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Nirex is the organisation responsible for long-term radioactive waste management in the UK. Our Mission is to provide the UK with safe, environmentally sound and publicly acceptable options for the long-term management of radioactive materials. The United Kingdom has a significant legacy of long-lived intermediate level radioactive waste. This has arisen from 50 years of investigation and exploitation of nuclear technology. Some of the waste is stored in old facilities that do not provide the standards of containment that would be incorporated in modern facilities. Also the risk to people and to the environment from the inventory in these facilities will increase with time as the structures age and degrade, increasing the chance of containment failure. There is, therefore, a need to retrieve this raw waste and process and package it to make it demonstrably safe for continued storage, pending a decision on disposal of radioactive waste. This packaging should, as far as is practicable, be compatible with the UK long-term waste management strategy. Nirex has developed its Phased Disposal Concept for intermediate and low-level radioactive waste. Based on that concept, Nirex has developed waste package specifications and carries out assessments of waste packaging proposals. For legacy wastes it may not always practicable to demonstrate full compliance with all Nirex disposal criteria. This paper describes an approach, agreed between Nirex and BNFL, for managing these wastes. The proposed approach takes account of long-term waste management issues whilst recognising the need for timely improvement of storage conditions.
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Watson, Jenny, and John Dalton. "Transparency in Practice: UK Nirex Limited and Access to Information." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4880.

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In 1997 Nirex failed to obtain planning permission to build an underground laboratory (Rock Characterisation Facility) near the Sellafield nuclear site in Cumbria, North-West England. This stopped the UK’s deep disposal programme. Since then there has been much discussion on how the UK should take the issue of long-term radioactive waste management forward. As part of its contribution to the ongoing debate, Nirex needed to reassess how its role in finding a long-term solution could be better played given its history. It has been suggested that the processes required to deal with such a contentious issue, the conduct of individuals and the structural relationships between organisations, all need to change if any progress is to be made. Specifically, one of the difficulties of the past was the lack of a mechanism to allow all stakeholders and the public to clearly see what had been decided and for what reasons. It is suggested that central to these changes needs to be a strong ethical framework based on transparency. This paper will provide an overview of the Nirex Transparency Policy, its operation and some observations of putting it into practice. As a method of ensuring that Nirex does not get complacent about this important aspect of their work, it established an Independent Transparency Review Panel. As part of this panel’s remit they conduct an annual review of the operation of Nirex’s Transparency Policy. Some conclusions and recommendations of operating such a policy will be discussed as will the implications of forthcoming legislation.
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Askarieh, M. M., A. W. Harris, and S. J. Wisbey. "The Potential Impact of Oil and Other Non-Aqueous Phase Liquids (NAPLs) on the Long-Term Management of Radioactive Wastes." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4887.

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The presence of non-aqueous phase liquids (NAPLs) in radioactive wastes has the potential to adversely affect their long-term management. The buoyancy of light NAPLs can represent a separate pathway for their migration from a waste management facility, such as a deep repository, to the accessible environment. Their inherent toxicity and potential burden of radionuclides need to be addressed. Nirex is currently developing an understanding of the behaviour of NAPLs and exploring the means of mitigating any adverse impact. NAPLs such as oils and solvents are present in existing wastes, but NAPLs can also be generated by degradation of some solid organic materials, such as plastics. Wastes arising in the United Kingdom that may contain NAPLs include liquids and sludges contaminated with oils, and waste items containing trapped oil, for example gearboxes and pumps. The reference inventory being assessed by Nirex also contains significant quantities of organic materials which can be considered to be potential precursors to the generation of NAPLs. A programme of work has been instigated by Nirex to develop a better understanding of the behaviour of NAPLs. The programme includes the following aspects: understanding the mechanisms by which NAPLs might be produced and existing NAPLs degraded and destroyed: • consideration of the containment that could be offered by packaging of wastes containing NAPLs; • investigating the extent to which radionuclides may be entrained in NAPLs; • understanding the migration of NAPLs in the near-field and in geological systems; • the impact of NAPLs on the surface properties of repository backfill and the geosphere; • development of assessment tools to quantify the potential risk due to NAPLs. This paper will describe the scope of this programme of work, and will provide examples from the ongoing programme to demonstrate that suitable long-term waste management solutions can be developed for NAPL containing wastes.
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Murray, Chris, David Wild, Ann McCall, John Mathieson, and Ben Russell. "Legitimacy as the Key: The Long-Term Management of Radioactive Waste in the UK." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4828.

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This paper provides an overview of the current status of radioactive waste management in the UK from the point of view of Nirex, the organisation responsible for providing safe, environmentally sound and publicly acceptable options for the long-term management of radioactive materials. Essentially, it argues that: • the waste exists and must be dealt with in an ethical manner; • legitimacy is the key to public acceptance of any attempt to solve the waste issue; and • credible options and a new political will allow, and indeed, compel this generation to deal with it. In doing this, the paper takes account of a number of recent announcements and ongoing developments in the UK nuclear industry, in particular: • the recent announcement that Nirex is to be made independent of industry; • the Department of Environment, Food and Rural Affairs and Devolved Administrations’ Managing Radioactive Waste Safely consultation exercise; • the creation of the Committee on Radioactive Waste Management to oversee the consultation; • the creation of the Nuclear Decommissioning Authority to manage the civil nuclear site clean-up programme; • proposals for improved regulation of Intermediate Level Waste conditioning and packaging; and • proposals by the European Commission for a new radioactive waste Directive. These institutional and policy changes amount to an evolution of the back-end of the fuel cycle that represents the most radical transformation in the UK nuclear industry for many years. In a large part, this is a transformation made necessary by past failures in trying to impose a solution on the general public. Therefore, in order for these changes to result in a successful long-term radioactive waste management programme, it is necessary to pay as much attention to political and social concerns as scientific and technical ones. Primarily it is crucial that all parties involved act in an open and transparent manner so that the decisions made achieve a high degree of legitimacy and thus public acceptance. Crucially too, the problem must be framed in the correct term — that the waste exists irrespective of the future of nuclear power and that this is an issue that must be addressed now. Thus there is a legitimacy of purpose and scope in moving forward that addresses the ethical imperative of this generation dealing with the waste. Put together with the action the government is taking to create the necessary institutional framework, Nirex believes that for the first time in a generation the UK has the building blocks in place to find a publicly acceptable, long-term solution for radioactive waste.
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King, Samantha. "Long-Term Issues for Indefinite Surface Storage of Intermediate and Some Low Level Radioactive Waste in the UK." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4935.

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Nirex is the organisation responsible for long-term radioactive waste management in the UK. Our mission is to provide the UK with safe, environmentally sound and publicly acceptable options for the long-term management of radioactive materials. Nirex is therefore researching various options for the long-term management of radioactive wastes/materials in order to identify the relevant issues with regard to the feasibility of options, and the research, development and stakeholder dialogue necessary to address these issues. The UK policy for the long-term management of solid radioactive waste is currently undergoing review. In September 2001, the UK Government Department for Environment, Food and Rural Affairs (Defra) and the Devolved Administrations for Scotland, Wales and Northern Ireland launched a public consultation on ‘Managing Radioactive Waste Safely’ (MRWS) [1]. The aim of this consultation was to start a process that will ultimately lead to the implementation of a publicly acceptable radioactive waste management policy. The MRWS programme of action proposed by Government includes a “stakeholder” programme of public debate backed by research to examine the different radioactive waste management options, and to recommend the preferred option, or combination of options. The options of storage above ground and underground are expected to be among the options examined. In the UK, radioactive wastes are currently held in surface stores, at over 30 locations in the UK, pending a decision on their long-term management. These stores were originally designed to have lifetimes of up to 50 years, but due to uncertainty regarding the longer term management of such wastes, extending the life of stores to 100 years is now being considered. This paper describes a preliminary scoping study to identify the long-term issues associated with surface storage of intermediate-level radioactive waste (ILW), and certain low-level waste (LLW) indefinitely in the UK. These wastes contain radionuclides with half lives that can range up to a million years or more, it was therefore assumed, for the purposes of this scoping study, that wastes would need to be managed over a period of at least one million years. An indefinite surface storage concept will require institutional stability and encompasses the principle of guardianship. It is based on a rolling present where each generation is required to monitor and, as necessary, repackage the waste and refurbish/replace storage buildings over a period of at least one million years. Each generation will also need to decide whether to continue with surface storage or implement another long-term management option. The aims of the scoping study were to: i) Investigate the implications of indefinite surface storage of waste packages through consideration of the facility specification, design and assessment. This framework is common to all Nirex radioactive waste management option studies, and provides a common basis for comparison. ii) Identify the social and ethical issues related to indefinite storage, including the principles and values that some stakeholders believe are met by the surface storage option.
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Reports on the topic "NIREX"

1

Borland, Walt. Final Report for NIREC Renewable Energy Research & Development Project. Office of Scientific and Technical Information (OSTI), May 2017. http://dx.doi.org/10.2172/1354729.

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2

Moriarty, P. Wind Energy R&D Collaboration between NIRE and NREL: Cooperative Research and Development Final Report, CRADA Number CRD-11-437. Office of Scientific and Technical Information (OSTI), January 2015. http://dx.doi.org/10.2172/1169215.

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