Výsledky vyhledávání

Integration of marine food chain model POSEIDON in JRODOS and testingversusFukushima data

Autor: R. Bezhenar, R. Heling, I. Ievdin, M. Iosjpe, V. Maderich, S. Willemsen, G. de With, A. Dvorzhak

Publikováno v: Radioprotection. 51:S137-S139

The marine box model POSEIDON-R was integrated into the JRODOS decision support system. The POSEIDON-R dynamic food web model was extended by a benthic food chain to describe the migration of radionuclides from contaminated bottom sediments to marine

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45d91c1c8b85f87b0b0f7f220f5e0050
https://doi.org/10.1051/radiopro/2016050

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Regional long-term model of radioactivity dispersion and fate in the Northwestern Pacific and adjacent seas: application to the Fukushima Dai-ichi accident

Autor: V. Maderich, R. Bezhenar, R. Heling, G. de With, K.T. Jung, J.G. Myoung, Y.-K. Cho, F. Qiao, L. Robertson

Publikováno v: Journal of Environmental Radioactivity. 131:4-18

The compartment model POSEIDON-R was modified and applied to the Northwestern Pacific and adjacent seas to simulate the transport and fate of radioactivity in the period 1945–2010, and to perform a radiological assessment on the releases of radioac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10cdebf80fced25830cb68e20cde3e56
https://doi.org/10.1016/j.jenvrad.2013.09.009

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Computerised Decision Support Systems for the management of freshwater radioecological emergencies: assessment of the state-of-the-art with respect to the experiences and needs of end-users

Autor: Lars Håkanson, D. Slavnicu, D. Gheorghiu, Dmitry Hofman, S. Lepicard, G. Kocsy, O. Slavik, Luigi Monte, Eduardo Gallego, A. Kerekes, R. Heling, Mark Zheleznyak, G. Donchyts, John E. Brittain, Patrick Boyer, Jim T. Smith

Publikováno v: Journal of Environmental Radioactivity
Journal of Environmental Radioactivity, Elsevier, 2011, 102, pp.119--127. ⟨10.1016/j.jenvrad.2010.11.002⟩

Assessment of the environmental and radiological consequences of a nuclear accident requires the management of a great deal of data and information as well as the use of predictive models. Computerised Decision Support Systems (CDSS) are essential to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3076eaa760c55a18531e68756b0ae7ca
https://doi.org/10.1016/j.jenvrad.2010.11.002

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The validation of the dynamic food chain model BURN-POSEIDON on Cs-137 and Sr-90 data of the Dnieper-Bug estuary, Ukraine

Autor: Roman Bezhenar, R. Heling

Publikováno v: Radioprotection. 46:S561-S566

The uptake of radioceasium and radiostrontium in biota in dose assessment models is mostly estimated on the basis of Concentration Factors (CF). For accidental releases, the dynamical foodweb model BURN has been implemented in the coastal model POSEI

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::819c74eaef48690c3202ab116894134d
https://doi.org/10.1051/radiopro/20116918s

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Reference methodologies for radioactive controlled discharges an activity within the IAEA’s program environmental modelling for radiation safety II (EMRAS II)

Autor: Patrick Boyer, P. Chyly, D.C. Lauria, D. Telleria, G. Latouche, A. Curti, L. Sági, V. Kliaus, Jim T. Smith, I. Bonchuk, T. J. Stocki, L. Bergman, V. Amado, G. Proehl, C. Mourlon, Laura Newsome, P. Krajewski, R. Heling

Publikováno v: Radioprotection. 46:S687-S693

In January 2009, the IAEA EMRAS II (Environmental Modelling for Radiation Safety II) program was launched. The goal of the program is to develop, compare and test models for the assessment of radiological impacts to the public and the environment due

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::669fcff6794786617b861bf26731ff15
https://doi.org/10.1051/radiopro/20116743s

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Findings and recommendations from an international comparison of models and approaches for the estimation of radiological exposure to non-human biota

Publikováno v: Radioprotection. 44:565-570

There is general international acceptance of the need to demonstrate that the environment is protected from ionising radiation. In some countries requirements and guidelines for the protection of non-human biota are already in place. As a consequence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd05fcf3749ff64d79642776196435f4
https://doi.org/10.1051/radiopro/20095104

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Modification of the dynamic radionuclide uptake model BURN by salinity driven transfer parameters for the marine foodweb and its integration in POSEIDON-R

Autor: Roman Bezhenar, R. Heling

Publikováno v: Radioprotection. 44:741-746

This work is based on the describing a new approach in estimation of Concentration Factor (CF) for marine organisms radionuclides uptake. We considered the dependence of CF from the water salinity (determining the K + and Ca 2+ ions). The radionuclid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a45e1477e8340e55da3f4aa676b8ab9c
https://doi.org/10.1051/radiopro/20095135

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Development and application of 3D numerical model THREETOX to the prediction of cooling water transport and mixing in the inland and coastal waters

Autor: Henk A. Jenner, Roman Bezhenar, Kateryna Terletska, Vladimir Maderich, Igor Brovchenko, R. Heling, Anatoly Kuschan, Volodymyr Koshebutskyy

Publikováno v: Hydrological Processes. 22:1000-1013

A modelling system-THREETOX-has been developed to simulate the transport and mixing of cooling water in both freshwater and marine environment. A 3D hydrostatic free-surface model describes the heat dispersion in the far-field, whereas an integral bu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebf0feebee74fc13362dfcae8322021b
https://doi.org/10.1002/hyp.6985

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Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario

Publikováno v: Journal of Environmental Radioactivity
Journal of Environmental Radioactivity, Elsevier, 2016, 153, pp.31-50. ⟨10.1016/j.jenvrad.2015.12.006⟩

We report an inter-comparison of eight models designed to predict the radiological exposure of radionuclides in marine biota. The models were required to simulate dynamically the uptake and turnover of radionuclides by marine organisms. Model predict

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee5c52a2bea968a6f1410e1636bbc93e
https://pubmed.ncbi.nlm.nih.gov/26717350

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The Dynamics of Tritium - Including OBT - in the Aquatic Food Chain

Autor: A. Melintescu, R. Heling, D. Galeriu

Publikováno v: Fusion Science and Technology. 48:779-782

Tritiated water spills by nuclear installations result in uptake in aquatic organisms. The radionuclide uptake model BURN (developed by NRG, modified), considers not only tritium as tritiated water (HTO) but also the conversion into organically bound

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec1058956ad3a77c80a9e79501ffd9a1
https://doi.org/10.13182/fst05-a1036

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