Academic literature on the topic 'Feedbacks radioactifs'

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Journal articles on the topic "Feedbacks radioactifs"

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Voss, R. "Radioactive and kinematic tracers of feedback from massive stars." EPJ Web of Conferences 19 (2012): 10004. http://dx.doi.org/10.1051/epjconf/20121910004.

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Iwata, Ren, Shigeki Yamazaki, and Tatsuo Ido. "Automated injection of a radioactive sample for preparative HPLC with feedback control." International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes 41, no. 12 (1990): 1225–27. http://dx.doi.org/10.1016/0883-2889(90)90211-x.

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Pysklywec, Russell N., and Christopher Beaumont. "Intraplate tectonics: feedback between radioactive thermal weakening and crustal deformation driven by mantle lithosphere instabilities." Earth and Planetary Science Letters 221, no. 1-4 (2004): 275–92. http://dx.doi.org/10.1016/s0012-821x(04)00098-6.

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Peng, Tianlin, Dewen Tang, and Jianing Wu. "Design of an autonomous navigation system for emergency disposal robots at radioactive waste sites under extreme climatic conditions." Journal of Physics: Conference Series 2419, no. 1 (2023): 012088. http://dx.doi.org/10.1088/1742-6596/2419/1/012088.

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Abstract There are many factors of environmental hazards that endanger the lives of personnel at radioactive waste sites after sudden extreme weather disasters, and the use of robotic substitutes can effectively safeguard the lives of personnel. For the situation where the environmental information of radioactive waste sites is unknown and there are many variables, an autonomous navigation system of emergency disposal robots with strong resilience and stability is designed. First, an algorithm based on the Rao-Blackwellized particle filtering theory is used in the autonomous navigation system
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Elbashti, Mahmoud E., Mariko Hattori, Amel Aswehlee, Atsushi Kaida, Yuka I. Sumita, and Noriyuki Wakabayashi. "A customized mono-block brachytherapy appliance for the treatment of mandibular gingival carcinoma: A case report." International Journal of Maxillofacial Prosthetics 8, no. 1 (2025): 7–11. https://doi.org/10.26629/ijmp.2025.03.

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This case report focuses on customizing a mono-block brachytherapy mold designed for the treatment of mandibular squamous cell carcinoma of the alveolar mucosa in an edentulous patient. A 90-year-old female patient was treated with radioactive gold-198 grains carried by a customized mono-block brachytherapy mold to deliver targeted radiation. A clear acrylic resin mold was designed to ensure precision, stability, and patient comfort, incorporating a chin cap retainer for enhanced retention. The mold's translucency facilitated accurate placement of radioactive gold-198 (198Au) grains, while a l
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Huang, Hanzhi. "Current status and applications of time-to-digital converters." Applied and Computational Engineering 53, no. 1 (2024): 79–83. http://dx.doi.org/10.54254/2755-2721/53/20241275.

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Time-to-Digital Converter (TDC) is widely used to realize time interval measurement. The high-precision time measurement technique has important applications in the fields of laser ranging, particle identification, and radioactive nuclear medicine engineering. Based on the existing literature research and data, this paper studies the application areas of TDC in the present development and analyzes the future prospects of TDC applications. The research results showed that: TDC, based on signal screening, realizes time interval measurement as the ultimate purpose of building the system and, at t
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Lin, Xiaofeng, Shoujun Zhou, Tiexiang Wen, Shenghao Jiang, Cheng Wang, and Jingtao Chen. "A novel multi-DoF surgical robotic system for brachytherapy on liver tumor: Design and control." International Journal of Computer Assisted Radiology and Surgery 16, no. 6 (2021): 1003–14. http://dx.doi.org/10.1007/s11548-021-02380-7.

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Abstract Purpose Radioactive seed implantation is an effective invasive treatment method for malignant liver tumors in hepatocellular carcinomas. However, challenges of the manual procedure may degrade the efficacy of the technique, such as the high accuracy requirement and radiation exposure to the surgeons. This paper aims to develop a robotic system and its control methods for assisting surgeons on the treatment. Method We present an interventional robotic system, which consists of a 5 Degree-of-Freedom (DoF) positioning robotic arm (a 3-DoF translational joint and a 2-DoF revolute joint) a
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Pan, Lung-Fa, Chao-Yu Chiang, Chao-Chun Huang, et al. "Thyroid Biokinetics for Radioactive I-131 in Twelve Thyroid Cancer Patients via the Refined Nine-Compartmental Model." Applied Sciences 12, no. 11 (2022): 5538. http://dx.doi.org/10.3390/app12115538.

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The thyroid biokinetic model of radioactive I-131 was re-evaluated using a refined nine-compartmental model and applied to twelve thyroid cancer patients. In contrast to the simplified four-compartmental model regulated by the ICRP-56 report, the revised model included nine compartments specified in the ICRP-128 report, namely, oral, stomach, body fluid, thyroid, whole body, liver, kidney, bladder, and remainder (i.e., the whole body minus kidney and bladder). A self-developed program run in MATLAB was designed to solve the nine first-order simultaneous linear differential equations. The model
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Wissmeier, Laurin, and Joachim Poppei. "Simulating the feedback between corrosive gas generation and water availability for the evaluation of radionuclide mobility in the context of radioactive waste disposal." Safety of Nuclear Waste Disposal 1 (November 10, 2021): 109–10. http://dx.doi.org/10.5194/sand-1-109-2021.

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Abstract. It has been recently recognized that the availability of liquid water may be a controlling factor in the feedback between the physical processes of variably saturated liquid and gas flow on the one hand, and various chemical processes such as metal corrosion in an underground storage facility for radioactive waste on the other hand (e.g., Huang et al., 2021, and reference therein). Iron corrosion in anoxic conditions produces hydrogen gas and consumes water, as expressed by the following stylized chemical equation (e.g., Diercks and Kassner, 1988; Senior et al., 2021): 3Fe+4H2O⟶Fe3O4
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Васин, М., M. Vasin, В. Соловьев, et al. "Primary Radiation Stress, Inflammatory Reaction and the Mechanism of Early Postradiation Reparative Processes in Irradiated Tissues." Medical Radiology and radiation safety 63, no. 6 (2018): 71–81. http://dx.doi.org/10.12737/article_5c0eb50d2316f4.12478307.

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The products of radiolysis released from cellular compartment under the influence of ionizing radiation: highly mobile groups of proteins, damaged nuclear and mitochondrial DNA, extracellular ATP and oxidized low density lipoproteins, cause stress activation in irradiated tissues through a pattern of the receptors with start of the cascade r53 and NF-κB of pro-inflammatory ways conducting to an expression of pro-inflammatory genes stimulating synthesis of cytokines of the IL-1 family. Excessive activation of pro-inflammatory way under the influence of a radioactive stress is limited to synthes
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Dissertations / Theses on the topic "Feedbacks radioactifs"

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Albright, Anna Lea. "The trade-wind boundary layer and climate sensitivity." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS207.

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La réponse des nuages des régimes d'alizés au réchauffement climatique reste incertaine. Elle soulève notamment la possibilité d'une sensibilité climatique élevée due à une diminution de la fraction nuageuse sous l'effet de l'interaction entre le mélange convectif, la turbulence, le rayonnement et l'environnement à grande échelle. La campagne EUREC4A (Elucidation du rôle du couplage nuage-circulation dans le climat) a apporté de nouvelles observations qui permettent de mieux comprendre la physique des régimes d'alizés, et d'apporter pour la première fois une contrainte sur la rétroaction des c
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Book chapters on the topic "Feedbacks radioactifs"

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Sert, Gilles, and Marie-Thérèse Caillard-Lizot. "Experience Feedback for Assessment of Transport Package Design Safety Reports." In Basics of Transport and Storage of Radioactive Materials. WORLD SCIENTIFIC, 2018. http://dx.doi.org/10.1142/9789813234048_0016.

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Conference papers on the topic "Feedbacks radioactifs"

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Dutzer, Michel, Ge´rald Ouzounian, Roberto Miguez, and Jean-Louis Tison. "Radioactive Waste: Feedback of 40-Year Operations in France." In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40081.

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France’s experience in the management of radioactive waste is supported by forty years of operational activities in the field of surface disposal. This feedback is related to three disposal facilities: Centre de la Manche disposal, not far away Cherbourg, from design to post-closure facility. Centre at Soulaines-Dhuys from site selection to design to operation during nearly 20 years. Centre at Morvilliers from site selection to operation for seven years now. During the operational period of Centre de la Manche disposal facility (1969–1994), the safety concept for low- and intermediate level sh
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Kreitman, Paul J., Joseph Boucau, Per Segerud, and Stefan Fallstro¨m. "Feedback From Westinghouse Experience on Segmentation of Reactor Vessel Internals." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59013.

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With more than 25 years of experience in the development of reactor vessel internals segmentation and packaging technology, Westinghouse has accumulated significant know-how in the reactor dismantling market. Building on tooling concepts and cutting methodologies developed decades ago for the successful removal of nuclear fuel from the damaged Three Mile Island Unit 2 reactor (TMI-2), Westinghouse has continuously improved its approach to internals segmentation and packaging by incorporating lessons learned and best practices into each successive project. Westinghouse has developed several con
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Faucheux, Claire, and Nicolas Jeanne´e. "Industrial Experience Feedback of a Geostatistical Estimation of Contaminated Soil Volumes." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59181.

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Geostatistics meets a growing interest for the remediation forecast of potentially contaminated sites, by providing adapted methods to perform both chemical and radiological pollution mapping, to estimate contaminated volumes, potentially integrating auxiliary information, and to set up adaptive sampling strategies. As part of demonstration studies carried out for GeoSiPol (Geostatistics for Polluted Sites), geostatistics has been applied for the detailed diagnosis of a former oil depot in France. The ability within the geostatistical framework to generate pessimistic / probable / optimistic s
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Guiberteau, Philippe, and Jean-Guy Nokhamzon. "French Alternative Energies and Atomic Energy Commission Decommissioning Programme and Feedback Experience." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96016.

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Since the French Atomic Energy Commission (CEA) was founded in 1945 to carry out research programs on use of nuclear, and its application France has set up and run various types of installations : research or prototypes reactors, process study or examination laboratories, pilot installations, accelerators, nuclear power plants and processing facilities. Some of these are currently being dismantled or must be dismantled soon so that the DEN, the Nuclear Energy Division, can construct new equipment and thus have available a range of R&D facilities in line with the issues of the nuclear indus
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Jeanjacques, Michel, Marie Pierre Bremond, Laurent Gautier, Guy Vieillard, David Estivie´, and Eric Pichereau. "Building 18: Operating Feedback From Cleaning and Dismantling of Glove Boxes and Shielding Lines." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16046.

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This summary presents the clean-up and dismantling works on glove boxes and shielded lines in building 18. The Atomic Energy Commission’s centre at Fontenay Aux Roses (CEA-FAR) was created in 1946. A radiochemical laboratory devoted to R&D programs focused on studies of irradiated fuel reprocessing processes, waste treatment processes and studies and production of transuranic elements was built in the early 1960s. The R&D program was finally halted on 30 June 1995. The purpose of the building 18 clean-up program is to minimise the nuclear and traditional hazards and to reduce as much a
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Cournoyer, Michael E., Steven Lee, and Robert F. Grundemann. "An Independent Analysis of a Glovebox Glove Failure Incident." 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/icem2001-1133.

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Abstract As part of the “Lessons Learned” Program, a recent glovebox glove failure incident is examined to provide feedback and continuous improvement of the Safe Work Practices (SWPs) work-control process. While slowly evaporating liquid from solutions in trays on hot plates, a glovebox became pressurized and a glove ruptured resulting in widespread contamination of equipment, work surfaces, and the floor. Based on the post-analysis of the solution and residues of the incident, several contributing causes of the overpressurization were ruled-out, including exposure to strong shock, organic ma
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Yanagihara, Satoshi, Mitsuo Tachibana, Taro Shimada, Takenori Sukegawa, and Kunio Shiraishi. "Experience of Clean-Up Activities and Feedback to Future D&D Projects: Japan Power Demonstration Reactor Decommissioning Project." 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/icem2001-1225.

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Abstract In the Japan Power Demonstration Reactor (JPDR) decommissioning project, the procedure for clean-up activities was specially studied for harmonization with radioactive waste treatment policy in Japan; it consisted of several components such as survey of the facility operational history, radiological characterization of building surfaces, decontamination and final survey of radioactivities. After confirming that there was no significant radioactivity in the facilities in the final step of the procedure, buildings were demolished in consideration of treatment of wastes as non-radioactiv
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Scelles, Fabien, Yves Kettering, and Frédérique Damerval. "Decommissioning of the MAU Facility at La Hague: How a Good Association of Milling Tools Can Facilitate the Decommissioning of Nuclear Areas?" In ASME 2023 International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/icem2023-109961.

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Abstract It is often the case, in reprocessing facilities and waste repositories, that surface decontamination requires mechanical milling techniques on concrete, cement or brick surfaces (coated or uncoated). Integrated and compliant techniques for the efficient milling of these surfaces are in demand in a growing decommissioning sector, due to a large number of these scenarios which present challenging geometries. This is the case for the dismantling of the MAU building which is part of Orano La Hague’s UP2 400 fuel recycling plant. Mechanical processes proved to work since facilities are be
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Lamotte, Hervé, Luc Torreblanca, and Suzel Vilarel. "Radioactive Waste Characterization and Tracking System at the French Atomic Energy Commission." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96057.

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CARAIBES is the traceability information system in radioactive solid waste management of the French Atomic Energy Commission, (CEA). Initially developed for the reprocessing facility of low and intermediate level waste of the centre of Cadarache, it has been gradually enhanced to manage very low level waste and the facilities of the centres of Saclay and Fontenay-aux-Roses. This software is directly connectable to characterization equipment as X-Ray measurement, gamma spectrometric measurement and/or neutronic measurement. After 15 years of operation, a new information system should replace it
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Aubonnet, Emilie, and Didier Dubot. "Soils Radiological Characterization Under a Nuclear Facility." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59046.

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Nowadays, nuclear industry is facing a crucial need in establishing radiological characterization for the appraisal and the monitoring of any remediation work. Regarding its experience in this domain, the French Alternative Energies and Atomic Energy Commission (CEA) of Fontenay-aux-Roses, established an important feedback and developed over the last 10 years a sound methodology for radiological characterization. This approach is based on several steps: - historical investigations; - assumption and confirmation of the contamination; - surface characterization; - in-depth characterization; - re
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