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Final design of the generic upper port plug structure for ITER diagnostic systems
Pak, S.,Feder, R.,Giacomin, T.,Guirao, J.,Iglesias, S.,Josseaume, F.,Kalish, M.,Loesser, D.,Maquet, P.,Ordieres, J.,Panizo, M.,Pitcher, S.,Portales, M.,Proust, M.,Ronden, D.,Serikov, A.,Suarez, A.,Tan North-Holland ; Elsevier Science Ltd 2016 Fusion engineering and design Vol.102 No.-
The generic upper port plug (GUPP) structure in ITER is a 6m long metal box which deploys diagnostic components into the vacuum vessel. This structure is commonly used for all the diagnostic upper ports. The final design of the GUPP structure, which has successfully passed the final design review in 2013, is described here. The diagnostic port plug is cantilevered to the vacuum vessel with a heavy payload at the front, so called the diagnostic first wall (DFW) and the diagnostic shield module (DSM). Most of electromagnetic (EM) load (~80%) occurs in DFW/DSM. Therefore, the mounting design to transfer the EM load from DFW/DSM to the GUPP structure is challenging, which should also comply with thermal expansion and tolerance for assembly and manufacturing. Another key design parameter to be considered is the gap between the port plug and the vacuum vessel port. The gap should be large enough to accommodate the remote handling of the heavy port plug (max. 25t), the structural deflection due to external loads and machine assembly tolerance. At the same time, the gap should be minimized to stop the neutron streaming according to the ALARA (as low as reasonably achievable) principle. With these design constraints, the GUPP structure should also provide space for diagnostic integration as much as possible. This requirement has led to the single wall structure having the gun-drilled water channels inside the structure. Furthermore, intensive efforts have been made on the manufacturing study including material selection, manufacturing codes and French regulation related to nuclear equipment and safety. All these main design and manufacturing aspects are discussed in this paper, including requirements, interfaces, loads and structural assessment and maintenance.
Application of benthonic microbial fuel cells and electro-Fenton process to dye decolourisation
M.A. Ferna´ndez de Dios,O. Iglesias,E. Bocos,M. Pazos,M.A. Sanroman 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.5
The design of microbial fuel cells (MFCs) should account for realistic conditions to have an MFC considered to be a reliable energy source. For this reason, this study focused on the design of a simple and economical cell, such as a benthonic microbial fuel cell (BMFC). Moreover, it was demonstrated that the stable energy generated in the best configuration of MFCs drives external advanced oxidation processes (electrochemical and electro-Fenton). Finally, a new hybrid cell (BMFC anode and electro-Fenton cathode) was designed to obtain a dual benefit: dye decolourisation and an increase in the produced energy.
Remediation of contaminated marine sediment using electrokinetic–Fenton technology
M. Pazos,M.A. Sanroman,O. Iglesias,J. Gomez,E. Rosales 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.3
In this work dredge marine sediments contaminated by petroleum hydrocarbon (TPH) and metals, such as Zn, Pb, Cu and Hg, were treated by electrokinetic treatment. EDTA and Tween 80 were used as processing fluid to enhance the solubility of metals and TPH, respectively. On the other hand, a combination of a Fenton’s reagent and EDTA was evaluated to promote the in situ degradation of TPH and to solubilize the metals. After 30 days of treatment, the best results were obtained by EK–Fenton–EDTA process with a removal of about 90% for TPH, 57.3% of Zn, 59.8% of Pb, 59.4% of Cu and 54.5% of Hg.
O. Iglesias,M. Pazos,M.A. Ferna´ndez de Dios,T. Tavares,M.A. Sanroman 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.27 No.-
In this work the preparation, characterization and performance of Y-zeolite as catalyst for electro-Fentontreatment of pesticides was carried out. Initially iron supported Y-zeolite (Fe-Y) was prepared andevaluated for the degradation of imidacloprid and chlorpyrifos. Kinetic studies determined that thepesticides removal followed a pseudo-first-order kinetic model. However, the reusability of this catalystwas not appropriated and to enhance its recyclability, Fe-Y catalyst was embedded in alginate (Al-Fe-Y). The new catalyst showed similar degradation efficiency; and the recyclability was improved. This studydemonstrated that Al-Fe-Y could be efficiently used to remove commonly pesticides, imidacloprid andchlorpyrifos, from aqueous medium.
Garcí,a-Iglesias, Miguel,Yum, Jun-Ho,Humphry-Baker, Robin,Zakeeruddin, Shaik M.,Pé,chy, Peter,Vá,zquez, Purificació,n,Palomares, Emilio,Grä,tzel, Michael,Nazeeruddin, Moham Royal Society of Chemistry 2011 Chemical science Vol.2 No.6
<P>We have designed and developed an unsymmetrical zinc phthalocyanine (TT9) sensitizer that consists of three <I>tert</I>-butyl and two carboxylic acid groups that act as “<I>push</I>” and “<I>pull</I>”, respectively. The two carboxylic acid groups graft the sensitizer onto the semiconductor surface resulting in enhanced stability under heat and light compared to the similar unsymmetrical zinc phthalocyanine (TT1) sensitizer that consists of three <I>tert</I>-butyl and only one carboxylic acid groups. The solar cells containing the TT9 and TT1 sensitizers with non-volatile electrolyte were subjected to light soaking conditions at 60 °C. Under these conditions, the short circuit current of the TT1 sensitized solar cell after 1000 h decreases to half of its initial value where as the TT9 sensitized solar cell remained the same demonstrating the influence of number of anchoring groups on the stability of zinc phthalocyanine sensitized solar cells.</P> <P>Graphic Abstract</P><P>Phthalocyanine TT9 (red) grafts onto the semiconductor surface resulting in enhanced stability compared to TT1 (black). <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0sc00602e'> </P>
Automated brainstem segmentation detects differential involvement in atypical parkinsonian syndromes
Martina Bocchetta,Juan Eugenio Iglesias,Viorica Chelban,Edwin Jabbari,Ruth Lamb,Lucy L. Russell,Caroline V. Greaves,Mollie Neason,David M. Cash,David L. Thomas,Jason D. Warren,John Woodside,Henry Houl 대한파킨슨병및이상운동질환학회 2020 Journal Of Movement Disorders Vol.13 No.1
Brainstem segmentation has been useful in identifying potential imaging biomarkers for diagnosis and progression in atypical parkinsonian syndromes (APS). However, the majority of work has been performed using manual segmentation, which is time consuming for large cohorts.
Giacomin, T.,Delhom, D.,Drevon, J.-M.,Guirao, J.,Iglesias, S.,Jourdan, T.,Loesser, D.,Maquet, P.,Ordieres, J.,Pak, S.,Proust, M.,Smith, M.,Udintsev, V.S.,Vacas, C.,Walsh, M.J.,Zhai, Y. Elsevier 2015 Fusion engineering and design Vol.98 No.-
<P><B>Abstract</B></P> <P>Due to this position close to the plasma, the port plug structure and the diagnostic first wall (DFW) contain water to allow cooling during operation and for heating during bake-out. To remove the heat coming from the plasma due to radiation and neutrons, the pressure inside these structures should be up to 44 bars. On the other hand, the dominant load expected to drive the design of these structures is of electromagnetic origin during the plasma disruption. Description of the loads acting on DFWs and generic port plug structures and the significance of the load due to the water pressure, with implications on the design and inspection, are discussed in this paper.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The ESP/ESPN regulation is applied to all equatorial and upper port-based diagnostic systems. </LI> <LI> The EPP and UPP structure provides a flexible platform for a variety of diagnostics. </LI> <LI> The EPP and UPP structure provide a support the diagnostic shielding module. </LI> </UL> </P>