Search

Testing, verification and validation of sensors, components and systems is vital in the early-stage development of new cars with computer-in-the-car architecture. This can be done with the help of the existing technique, hardware-in-the-loop (HIL) testing which, in the close loop testing case, consists of four main parts: Real-Time Simulation Platform, Sensor Simulation PC, Interface Unit (IU), and unit under test which is, for instance, a Vehicle Computing Unit (VCU). The purpose of this degree project is to research and develop a proof of concept for in-house development of an image injection solution (IIS) on the IU in the HIL testing environment. A proof of concept could confirm that editing, customizing, and having full control of the IU is a possibility. This project was initiated by Volvo Cars to optimize the use of the HIL testing environment currently available, making the environment more changeable and controllable while the IIS remains a static system. The IU is an MPSoC/FPGA based design that uses primarily Xilinx hardware and software (Vivado/Vitis) to achieve the necessary requirements for image injection in the HIL testing environment. It consists of three stages in series: input, image processing, and output. The whole project was divided in three parts based on the three stages and carried out at Volvo Cars in cooperation by three students, respectively. The author of this thesis was responsible for the output stage, where the main goal was to find a solution for converting, preferably, AXI4 RAW12 image data into data on CSI2 format. This CSI2 data can then be used as input to serializers, which in turn transmit the data via fiber-optic cable on GMSL2 format to the VCU. Associated with the output stage, extensive simulations and hardware tests have been done on a preliminary solution that partially worked on the hardware, producing signals in parts of the design that could be read and analyzed. However, a final definite solution that fully function

Testing, verification and validation of sensors, components and systems is vital in the early-stage development of new cars with computer-in-the-car architecture. This can be done with the help of the existing technique, hardware-in-the-loop (HIL) testing which, in the close loop testing case, consists of four main parts: Real-Time Simulation Platform, Sensor Simulation PC, Interface Unit (IU), and unit under test which is, for instance, a Vehicle Computing Unit (VCU). The purpose of this degree project is to research and develop a proof of concept for in-house development of an image injection solution (IIS) on the IU in the HIL testing environment. A proof of concept could confirm that editing, customizing, and having full control of the IU is a possibility. This project was initiated by Volvo Cars to optimize the use of the HIL testing environment currently available, making the environment more changeable and controllable while the IIS remains a static system. The IU is an MPSoC/FPGA based design that uses primarily Xilinx hardware and software (Vivado/Vitis) to achieve the necessary requirements for image injection in the HIL testing environment. It consists of three stages in series: input, image processing, and output. The whole project was divided in three parts based on the three stages and carried out at Volvo Cars in cooperation by three students, respectively. The author of this thesis was responsible for the output stage, where the main goal was to find a solution for converting, preferably, AXI4 RAW12 image data into data on CSI2 format. This CSI2 data can then be used as input to serializers, which in turn transmit the data via fiber-optic cable on GMSL2 format to the VCU. Associated with the output stage, extensive simulations and hardware tests have been done on a preliminary solution that partially worked on the hardware, producing signals in parts of the design that could be read and analyzed. However, a final definite solution that fully function

High-Performance Computing can be accelerated using long-vector architectures. However, creating efficient coding implementations for these architectures can be challenging. This Master's thesis focuses on implementing four well-known and widely-used graph processing algorithms using the RISC-V Vector Extension, leveraging an experimental system in an FPGA. I present a graph storage format that benefits from long vectors and describe how these four algorithms can be rewritten to utilize it. This thesis also introduces an instrumentation tool for FPGA that I developed to link the output of electrical engineering software with performance analysis tools for HPC. This tool allows users to visualize information coming from the logic analyzer internal to the FPGA with powerful visualization tools, permitting fine-grain analysis of the FPGA signals correlated with the code running on it. This tool has been integrated into the experimental performance analysis tools of BSC. In this thesis I leverage this tool to analyze and improve my implementations of graph algorithms for long-vector architectures, collecting the process and thoughts behind each optimization. Finally, I compare the performance of my vector implementations with other machines, such as the NEC SX-Aurora, a commercial RISC-V board, and an Intel chip.

This paper presents the Instruction-Level Abstraction (ILA) as a formal software/hardware interface for accelerator-rich platforms. The ILA provides a common framework for formal functional specification of processors and accelerator behavior, verifying their implementations, and reasoning about software-hardware interactions of programs with accelerators. The ILA-MCM specification extends the ILA to enable reasoning about interactions of accelerators with other compute engines through shared memory. The 3LA compilation flow for accelerators uses the ILA model to bridge the gap between fine-grain compiler intrinsics and coarse-grain accelerator operations. © 2023 IEEE.

The theme of the echo in Virg. ecl. 6 is developed differently from the other eclogues. It is connected to mythical tales and the poet treats it with great stylistic elegance; these features seem to suggest a relationship of these occurrences with the poetry of Gallus and with a Callimachean taste. But they are in harmony with the structure of the whole book and this creates interesting correspondences with the occurrences of the theme in other poems of the collection., Le occorrenze del tema dell’eco nell’ecl. 6 presentano caratteristiche diverse da tutte le altre presenze del tema nelle Bucoliche. Relative a vicende mitiche e trattate con particolare cura formale dal poeta, sembrano riconducibili per diverse vie e diversi aspetti alla poesia di Gallo e ad un àmbito di raffinata imitazione callimachea. Pur nella loro singolarità, esse rientrano però nel disegno complessivo dell’opera e creano interessanti rapporti di corrispondenza con il trattamento dell’eco nelle altre ecloghe

The theme of the echo in Virg. ecl. 6 is developed differently from the other eclogues. It is connected to mythical tales and the poet treats it with great stylistic elegance; these features seem to suggest a relationship of these occurrences with the poetry of Gallus and with a Callimachean taste. But they are in harmony with the structure of the whole book and this creates interesting correspondences with the occurrences of the theme in other poems of the collection., Le occorrenze del tema dell’eco nell’ecl. 6 presentano caratteristiche diverse da tutte le altre presenze del tema nelle Bucoliche. Relative a vicende mitiche e trattate con particolare cura formale dal poeta, sembrano riconducibili per diverse vie e diversi aspetti alla poesia di Gallo e ad un àmbito di raffinata imitazione callimachea. Pur nella loro singolarità, esse rientrano però nel disegno complessivo dell’opera e creano interessanti rapporti di corrispondenza con il trattamento dell’eco nelle altre ecloghe

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) in ASDEX Upgrade (AUG), Alcator C-Mod, and JET-ILW are reviewed. Capabilities to diagnose and model the effect of DC biasing and associated impurity production at active antennas and on magnetic field connections to antennas are described. The experiments show that ICRF near-fields can lead not only to E x B convection, but also to modifications of the SOL density, which for Alcator C-Mod are limited to a narrow region near antenna. On the other hand, the SOL density distribution along with impurity sources can be tailored using local gas injection in AUG and JET-ILW with a positive effect on reduction of impurity sources. The technique of RF image current cancellation at antenna limiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna. Multiple observations confirmed the reduction of the impact of ICRF on the SOL and on total impurity production when the ratio of the power of the central straps to the total antenna power is in the range 0.6 < P-cen / P-total < 0.8. Near-field calculations indicate that this fairly robust technique can be applied to the ITER ICRF antenna, enabling the mode of operation with reduced PWI. On the contrary, for the A2 antenna in JET-ILW the technique is hindered by RF sheaths excited at the antenna septum. Thus, in order to reduce the effect of ICRF power on PWI in a future fusion reactor, the antenna design has to be optimized along with design of plasmafacing components., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2018.11.017

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) in ASDEX Upgrade (AUG), Alcator C-Mod, and JET-ILW are reviewed. Capabilities to diagnose and model the effect of DC biasing and associated impurity production at active antennas and on magnetic field connections to antennas are described. The experiments show that ICRF near-fields can lead not only to E x B convection, but also to modifications of the SOL density, which for Alcator C-Mod are limited to a narrow region near antenna. On the other hand, the SOL density distribution along with impurity sources can be tailored using local gas injection in AUG and JET-ILW with a positive effect on reduction of impurity sources. The technique of RF image current cancellation at antenna limiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna. Multiple observations confirmed the reduction of the impact of ICRF on the SOL and on total impurity production when the ratio of the power of the central straps to the total antenna power is in the range 0.6 < P-cen / P-total < 0.8. Near-field calculations indicate that this fairly robust technique can be applied to the ITER ICRF antenna, enabling the mode of operation with reduced PWI. On the contrary, for the A2 antenna in JET-ILW the technique is hindered by RF sheaths excited at the antenna septum. Thus, in order to reduce the effect of ICRF power on PWI in a future fusion reactor, the antenna design has to be optimized along with design of plasmafacing components., QC 20200316

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) in ASDEX Upgrade (AUG), Alcator C-Mod, and JET-ILW are reviewed. Capabilities to diagnose and model the effect of DC biasing and associated impurity production at active antennas and on magnetic field connections to antennas are described. The experiments show that ICRF near-fields can lead not only to E x B convection, but also to modifications of the SOL density, which for Alcator C-Mod are limited to a narrow region near antenna. On the other hand, the SOL density distribution along with impurity sources can be tailored using local gas injection in AUG and JET-ILW with a positive effect on reduction of impurity sources. The technique of RF image current cancellation at antenna limiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna. Multiple observations confirmed the reduction of the impact of ICRF on the SOL and on total impurity production when the ratio of the power of the central straps to the total antenna power is in the range 0.6 < P-cen / P-total < 0.8. Near-field calculations indicate that this fairly robust technique can be applied to the ITER ICRF antenna, enabling the mode of operation with reduced PWI. On the contrary, for the A2 antenna in JET-ILW the technique is hindered by RF sheaths excited at the antenna septum. Thus, in order to reduce the effect of ICRF power on PWI in a future fusion reactor, the antenna design has to be optimized along with design of plasmafacing components., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2018.11.017

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) in ASDEX Upgrade (AUG), Alcator C-Mod, and JET-ILW are reviewed. Capabilities to diagnose and model the effect of DC biasing and associated impurity production at active antennas and on magnetic field connections to antennas are described. The experiments show that ICRF near-fields can lead not only to E x B convection, but also to modifications of the SOL density, which for Alcator C-Mod are limited to a narrow region near antenna. On the other hand, the SOL density distribution along with impurity sources can be tailored using local gas injection in AUG and JET-ILW with a positive effect on reduction of impurity sources. The technique of RF image current cancellation at antenna limiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna. Multiple observations confirmed the reduction of the impact of ICRF on the SOL and on total impurity production when the ratio of the power of the central straps to the total antenna power is in the range 0.6 < P-cen / P-total < 0.8. Near-field calculations indicate that this fairly robust technique can be applied to the ITER ICRF antenna, enabling the mode of operation with reduced PWI. On the contrary, for the A2 antenna in JET-ILW the technique is hindered by RF sheaths excited at the antenna septum. Thus, in order to reduce the effect of ICRF power on PWI in a future fusion reactor, the antenna design has to be optimized along with design of plasmafacing components., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2018.11.017

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma WallInteractions) in ASDEX Upgrade (AUG),Alcator CMod,and JETIL Ware reviewed. Capabilities to diagnose and model the effect of DCbiasingand associated impurity production atactive antenna sandon magnetic field connections to antennas are described. The experiments show that ICRFnearfields can lead not only to E×B convection, but also to modifications of the SOL density,which for Alcator CMod are limited to anarrow regionne arantenna. On the other hand, the SOL density distribution along with impurity sources can be tail or edusing localg as injection in AUG and JET-ILW with a positive effect on reduction of impurity sources.The technique of RFimage current cancellation atantennalimiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna.MultipleobservationsconfirmedthereductionoftheimpactofICRFontheSOLandontotalimpuritypro-ductionwhentheratioofthepowerofthecentralstrapstothetotalantennapowerisintherange0.6

The purpose of this study is to provide insights into pragmatic assessment in terms of appropriateness from a multimodal perspective at a conversational level. The study involved the design of a rubric for assessing pragmatic appropriateness from a holistic perspective, that is, it addresses linguistic and non-linguistic resources. The study was conducted in a Spanish higher education context and involved 64 participants, who were divided into two different proficiency levels (B1 and B2). Data were gathered by means of a role-play task that elicits complaints and responses to complaints, and a multimodal corpus consisting of 32 videos was compiled. Two raters examined participants’ performance according to the rubric devised for the purposes of the study. Results reveal that general proficiency level appears to influence pragmatic appropriateness in terms of the expressions used and the management of turns during the conversation. This study suggests that analysing pragmatic appropriateness from a holistic perspective deserves further investigation and its findings set the ground for future research in this area., El objetivo de este estudio es proporcionar información sobre la evaluación de la adecuación de pragmática desde una perspectiva multimodal al nivel de la conversación. Para este estudio se diseñó una rúbrica para evaluar la adecuación de la pragmática desde una perspectiva holística, es decir, centrándose en recursos lingüísticos y no lingüísticos. El estudio se llevó a cabo en un contexto español de educación superior y contó con 64 participantes, que fueron divididos en dos niveles de competencia (B1 y B2). La muestra se recogió con una actividad de role-play diseñada para recabar quejas y respuestas a quejas y se compiló un corpus multimodal de 32 vídeos. Dos evaluadores examinaron la producción de los participantes con la rúbrica que se diseñó para este estudio. Los resultados parecen indicar que el nivel de competencia general ha afectado a la adecuación de la pragmática en cuanto a las expresiones que se han usado y a la gestión de los turnos durante la conversación. Los resultados de este estudio desvelan el potencial de analizar la adecuación de la pragmática desde una perspectiva holística, así como la necesidad de llevar a cabo futuras investigaciones en esta área.

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma WallInteractions) in ASDEX Upgrade (AUG),Alcator CMod,and JETIL Ware reviewed. Capabilities to diagnose and model the effect of DCbiasingand associated impurity production atactive antenna sandon magnetic field connections to antennas are described. The experiments show that ICRFnearfields can lead not only to E×B convection, but also to modifications of the SOL density,which for Alcator CMod are limited to anarrow regionne arantenna. On the other hand, the SOL density distribution along with impurity sources can be tail or edusing localg as injection in AUG and JET-ILW with a positive effect on reduction of impurity sources.The technique of RFimage current cancellation atantennalimiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna.MultipleobservationsconfirmedthereductionoftheimpactofICRFontheSOLandontotalimpuritypro-ductionwhentheratioofthepowerofthecentralstrapstothetotalantennapowerisintherange0.6

The purpose of this study is to provide insights into pragmatic assessment in terms of appropriateness from a multimodal perspective at a conversational level. The study involved the design of a rubric for assessing pragmatic appropriateness from a holistic perspective, that is, it addresses linguistic and non-linguistic resources. The study was conducted in a Spanish higher education context and involved 64 participants, who were divided into two different proficiency levels (B1 and B2). Data were gathered by means of a role-play task that elicits complaints and responses to complaints, and a multimodal corpus consisting of 32 videos was compiled. Two raters examined participants’ performance according to the rubric devised for the purposes of the study. Results reveal that general proficiency level appears to influence pragmatic appropriateness in terms of the expressions used and the management of turns during the conversation. This study suggests that analysing pragmatic appropriateness from a holistic perspective deserves further investigation and its findings set the ground for future research in this area., El objetivo de este estudio es proporcionar información sobre la evaluación de la adecuación de pragmática desde una perspectiva multimodal al nivel de la conversación. Para este estudio se diseñó una rúbrica para evaluar la adecuación de la pragmática desde una perspectiva holística, es decir, centrándose en recursos lingüísticos y no lingüísticos. El estudio se llevó a cabo en un contexto español de educación superior y contó con 64 participantes, que fueron divididos en dos niveles de competencia (B1 y B2). La muestra se recogió con una actividad de role-play diseñada para recabar quejas y respuestas a quejas y se compiló un corpus multimodal de 32 vídeos. Dos evaluadores examinaron la producción de los participantes con la rúbrica que se diseñó para este estudio. Los resultados parecen indicar que el nivel de competencia general ha afectado a la adecuación de la pragmática en cuanto a las expresiones que se han usado y a la gestión de los turnos durante la conversación. Los resultados de este estudio desvelan el potencial de analizar la adecuación de la pragmática desde una perspectiva holística, así como la necesidad de llevar a cabo futuras investigaciones en esta área.

L’examen des généalogies royales indiennes et des récits de nature mythique y afférents contenus dans l’épopée et les purāṇa les plus anciens permet de reconnaître des structures thématiques attestées ailleurs dans l’aire indo-européenne, ainsi que l’a montré le premier George Dumézil (à propos des héros de l’intrigue centrale du Mahābhārata, mais aussi des rois Manu, Purūravas, Pṛthu, Yayāti, etc.). J’ai moi-même pu en découvrir d’autres en m’intéressant au premiers rois de la dynastie solaire, c’est-à-dire aux trois fils, fonctionnellement distincts, d’Ikṣvāku, ou au roi nommément « triple pécheur » Triśaṅku. Dans cette contribution qui s’inscrit dans le thème de la journée, l’enquête concernera le personnage d’Ilā, la fille de Manu Vaivasvata, qui, selon les plus anciennes versions, naquit femme puis fut transformée en homme sous le nom de Sudyumna ; elle connut ensuite une forme d’alternance sexuelle avec, lors d’une phase féminine, une union avec Budha qui lui fit engendrer « Aila » Purūravas, à l’origine de la dynastie lunaire. On étudiera le mythe selon ses versions les plus anciennes en tentant d’en identifier la structure stable et les variantes significatives.

The purpose of this study is to provide insights into pragmatic assessment in terms of appropriateness from a multimodal perspective at a conversational level. The study involved the design of a rubric for assessing pragmatic appropriateness from a holistic perspective, that is, it addresses linguistic and non-linguistic resources. The study was conducted in a Spanish higher education context and involved 64 participants, who were divided into two different proficiency levels (B1 and B2). Data were gathered by means of a role-play task that elicits complaints and responses to complaints, and a multimodal corpus consisting of 32 videos was compiled. Two raters examined participants’ performance according to the rubric devised for the purposes of the study. Results reveal that general proficiency level appears to influence pragmatic appropriateness in terms of the expressions used and the management of turns during the conversation. This study suggests that analysing pragmatic appropriateness from a holistic perspective deserves further investigation and its findings set the ground for future research in this area., El objetivo de este estudio es proporcionar información sobre la evaluación de la adecuación de pragmática desde una perspectiva multimodal al nivel de la conversación. Para este estudio se diseñó una rúbrica para evaluar la adecuación de la pragmática desde una perspectiva holística, es decir, centrándose en recursos lingüísticos y no lingüísticos. El estudio se llevó a cabo en un contexto español de educación superior y contó con 64 participantes, que fueron divididos en dos niveles de competencia (B1 y B2). La muestra se recogió con una actividad de role-play diseñada para recabar quejas y respuestas a quejas y se compiló un corpus multimodal de 32 vídeos. Dos evaluadores examinaron la producción de los participantes con la rúbrica que se diseñó para este estudio. Los resultados parecen indicar que el nivel de competencia general ha afectado a la adecuación de la pragmática en cuanto a las expresiones que se han usado y a la gestión de los turnos durante la conversación. Los resultados de este estudio desvelan el potencial de analizar la adecuación de la pragmática desde una perspectiva holística, así como la necesidad de llevar a cabo futuras investigaciones en esta área.

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma WallInteractions) in ASDEX Upgrade (AUG),Alcator CMod,and JETIL Ware reviewed. Capabilities to diagnose and model the effect of DCbiasingand associated impurity production atactive antenna sandon magnetic field connections to antennas are described. The experiments show that ICRFnearfields can lead not only to E×B convection, but also to modifications of the SOL density,which for Alcator CMod are limited to anarrow regionne arantenna. On the other hand, the SOL density distribution along with impurity sources can be tail or edusing localg as injection in AUG and JET-ILW with a positive effect on reduction of impurity sources.The technique of RFimage current cancellation atantennalimiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna.MultipleobservationsconfirmedthereductionoftheimpactofICRFontheSOLandontotalimpuritypro-ductionwhentheratioofthepowerofthecentralstrapstothetotalantennapowerisintherange0.6

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma WallInteractions) in ASDEX Upgrade (AUG),Alcator CMod,and JETIL Ware reviewed. Capabilities to diagnose and model the effect of DCbiasingand associated impurity production atactive antenna sandon magnetic field connections to antennas are described. The experiments show that ICRFnearfields can lead not only to E×B convection, but also to modifications of the SOL density,which for Alcator CMod are limited to anarrow regionne arantenna. On the other hand, the SOL density distribution along with impurity sources can be tail or edusing localg as injection in AUG and JET-ILW with a positive effect on reduction of impurity sources.The technique of RFimage current cancellation atantennalimiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna.MultipleobservationsconfirmedthereductionoftheimpactofICRFontheSOLandontotalimpuritypro-ductionwhentheratioofthepowerofthecentralstrapstothetotalantennapowerisintherange0.6

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) in ASDEX Upgrade (AUG), Alcator C-Mod, and JET-ILW are reviewed. Capabilities to diagnose and model the effect of DC biasing and associated impurity production at active antennas and on magnetic field connections to antennas are described. The experiments show that ICRF near-fields can lead not only to E x B convection, but also to modifications of the SOL density, which for Alcator C-Mod are limited to a narrow region near antenna. On the other hand, the SOL density distribution along with impurity sources can be tailored using local gas injection in AUG and JET-ILW with a positive effect on reduction of impurity sources. The technique of RF image current cancellation at antenna limiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna. Multiple observations confirmed the reduction of the impact of ICRF on the SOL and on total impurity production when the ratio of the power of the central straps to the total antenna power is in the range 0.6 < P-cen / P-total < 0.8. Near-field calculations indicate that this fairly robust technique can be applied to the ITER ICRF antenna, enabling the mode of operation with reduced PWI. On the contrary, for the A2 antenna in JET-ILW the technique is hindered by RF sheaths excited at the antenna septum. Thus, in order to reduce the effect of ICRF power on PWI in a future fusion reactor, the antenna design has to be optimized along with design of plasmafacing components., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2018.11.017

Serguei M. Eisenstein afirmaba que, en términos de arte, se debía retornar hacia la síntesis del elemento emocional y el intelectual. Y que sólo creía al cine capaz de alcanzar esta síntesis, retrotrayendo el elemento intelectual a sus fuentes vitales concretas y emocionales. Los videoartistas Ila Bêka y Louise Lemoine filman, durante una semana, la vida de Moriyama-San en su casa de Tokyo. Cuando muere su madre, Moriyama-San manda derribar la casa tradicional en la que había vivido desde su nacimiento, y escribe una carta a Ryue Nishizawa para que le diseñe su nueva casa. Nishizawa le responde que no necesita una casa, sino una pequeña ciudad en medio del bosque, pero en el centro de Tokyo. La película de Bêka y Lemoine, Moriyama-San, permite intuir dos cosas: que la síntesis entre emoción espacial e intelecto arquitectónico, en ocasiones, coinciden. Y que cuando esa coincidencia se filma, el resultado es una mirada sobre la contemporaneidad., Postprint (author's final draft)

The purpose of this study is to provide insights into pragmatic assessment in terms of appropriateness from a multimodal perspective at a conversational level. The study involved the design of a rubric for assessing pragmatic appropriateness from a holistic perspective, that is, it addresses linguistic and non-linguistic resources. The study was conducted in a Spanish higher education context and involved 64 participants, who were divided into two different proficiency levels (B1 and B2). Data were gathered by means of a role-play task that elicits complaints and responses to complaints, and a multimodal corpus consisting of 32 videos was compiled. Two raters examined participants’ performance according to the rubric devised for the purposes of the study. Results reveal that general proficiency level appears to influence pragmatic appropriateness in terms of the expressions used and the management of turns during the conversation. This study suggests that analysing pragmatic appropriateness from a holistic perspective deserves further investigation and its findings set the ground for future research in this area., El objetivo de este estudio es proporcionar información sobre la evaluación de la adecuación de pragmática desde una perspectiva multimodal al nivel de la conversación. Para este estudio se diseñó una rúbrica para evaluar la adecuación de la pragmática desde una perspectiva holística, es decir, centrándose en recursos lingüísticos y no lingüísticos. El estudio se llevó a cabo en un contexto español de educación superior y contó con 64 participantes, que fueron divididos en dos niveles de competencia (B1 y B2). La muestra se recogió con una actividad de role-play diseñada para recabar quejas y respuestas a quejas y se compiló un corpus multimodal de 32 vídeos. Dos evaluadores examinaron la producción de los participantes con la rúbrica que se diseñó para este estudio. Los resultados parecen indicar que el nivel de competencia general ha afectado a la adecuación de la pragmática en cuanto a las expresiones que se han usado y a la gestión de los turnos durante la conversación. Los resultados de este estudio desvelan el potencial de analizar la adecuación de la pragmática desde una perspectiva holística, así como la necesidad de llevar a cabo futuras investigaciones en esta área.

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma WallInteractions) in ASDEX Upgrade (AUG),Alcator CMod,and JETIL Ware reviewed. Capabilities to diagnose and model the effect of DCbiasingand associated impurity production atactive antenna sandon magnetic field connections to antennas are described. The experiments show that ICRFnearfields can lead not only to E×B convection, but also to modifications of the SOL density,which for Alcator CMod are limited to anarrow regionne arantenna. On the other hand, the SOL density distribution along with impurity sources can be tail or edusing localg as injection in AUG and JET-ILW with a positive effect on reduction of impurity sources.The technique of RFimage current cancellation atantennalimiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna.MultipleobservationsconfirmedthereductionoftheimpactofICRFontheSOLandontotalimpuritypro-ductionwhentheratioofthepowerofthecentralstrapstothetotalantennapowerisintherange0.6

The purpose of this study is to provide insights into pragmatic assessment in terms of appropriateness from a multimodal perspective at a conversational level. The study involved the design of a rubric for assessing pragmatic appropriateness from a holistic perspective, that is, it addresses linguistic and non-linguistic resources. The study was conducted in a Spanish higher education context and involved 64 participants, who were divided into two different proficiency levels (B1 and B2). Data were gathered by means of a role-play task that elicits complaints and responses to complaints, and a multimodal corpus consisting of 32 videos was compiled. Two raters examined participants’ performance according to the rubric devised for the purposes of the study. Results reveal that general proficiency level appears to influence pragmatic appropriateness in terms of the expressions used and the management of turns during the conversation. This study suggests that analysing pragmatic appropriateness from a holistic perspective deserves further investigation and its findings set the ground for future research in this area., El objetivo de este estudio es proporcionar información sobre la evaluación de la adecuación de pragmática desde una perspectiva multimodal al nivel de la conversación. Para este estudio se diseñó una rúbrica para evaluar la adecuación de la pragmática desde una perspectiva holística, es decir, centrándose en recursos lingüísticos y no lingüísticos. El estudio se llevó a cabo en un contexto español de educación superior y contó con 64 participantes, que fueron divididos en dos niveles de competencia (B1 y B2). La muestra se recogió con una actividad de role-play diseñada para recabar quejas y respuestas a quejas y se compiló un corpus multimodal de 32 vídeos. Dos evaluadores examinaron la producción de los participantes con la rúbrica que se diseñó para este estudio. Los resultados parecen indicar que el nivel de competencia general ha afectado a la adecuación de la pragmática en cuanto a las expresiones que se han usado y a la gestión de los turnos durante la conversación. Los resultados de este estudio desvelan el potencial de analizar la adecuación de la pragmática desde una perspectiva holística, así como la necesidad de llevar a cabo futuras investigaciones en esta área.

Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) in ASDEX Upgrade (AUG), Alcator C-Mod, and JET-ILW are reviewed. Capabilities to diagnose and model the effect of DC biasing and associated impurity production at active antennas and on magnetic field connections to antennas are described. The experiments show that ICRF near-fields can lead not only to E x B convection, but also to modifications of the SOL density, which for Alcator C-Mod are limited to a narrow region near antenna. On the other hand, the SOL density distribution along with impurity sources can be tailored using local gas injection in AUG and JET-ILW with a positive effect on reduction of impurity sources. The technique of RF image current cancellation at antenna limiters was successfully applied in AUG using the 3-strap AUG antenna and extended to the 4-strap Alcator C-Mod field-aligned antenna. Multiple observations confirmed the reduction of the impact of ICRF on the SOL and on total impurity production when the ratio of the power of the central straps to the total antenna power is in the range 0.6 < P-cen / P-total < 0.8. Near-field calculations indicate that this fairly robust technique can be applied to the ITER ICRF antenna, enabling the mode of operation with reduced PWI. On the contrary, for the A2 antenna in JET-ILW the technique is hindered by RF sheaths excited at the antenna septum. Thus, in order to reduce the effect of ICRF power on PWI in a future fusion reactor, the antenna design has to be optimized along with design of plasmafacing components., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2018.11.017

The JET ICRF ITER-like Antenna (ILA) has been operated at 33, 42 and 47 MHz in 2008–2009 but stoppedoperation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a sparecapacitor showed that a micro-leak was caused by the cycle wear of a capacitor’s internal bellows. TheILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor.This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the firstresults on plasma.The capacitors were replaced and high voltage tests of the capacitors were performed. An extensivecalibration of all the measurements in the RF circuit was carried out. New simulation tools were createdand control algorithms were implemented for the – toroidal and poloidal – phase control of the array aswell as for the matching of the second stage. New protections are being implemented for the thermal andvoltage protection of the capacitors. Low voltage matching tests were performed before the high powercommissioning. Finally the first results on plasma are presented, showing that the new controls allowextending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved.

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N-2) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 degrees phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation. (C) 2016 The Authors. Published by Elsevier Ltd., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2016.10.026

The JET ICRF ITER-like Antenna (ILA) has been operated at 33,42 and 47 MHz in 2008-2009 but stopped operation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a spare capacitor showed that a micro-leak was caused by the cycle wear of a capacitor's internal bellows. The ILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor. This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the first results on plasma. The capacitors were replaced and high voltage tests of the capacitors were performed. An extensive calibration of all the measurements in the RF circuit was carried out. New simulation tools were created and control algorithms were implemented for the - toroidal and poloidal - phase control of the array as well as for the matching of the second stage. New protections are being implemented for the thermal and voltage protection of the capacitors. Low voltage matching tests were performed before the high power commissioning. Finally the first results on plasma are presented, showing that the new controls allow extending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved., For complete list of authors see http://dx.doi.org/10.1016/j.fusengdes.2017.05.050

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N-2) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 degrees phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation., 20200311

The JET ICRF ITER-like Antenna (ILA) has been operated at 33,42 and 47 MHz in 2008-2009 but stopped operation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a spare capacitor showed that a micro-leak was caused by the cycle wear of a capacitor's internal bellows. The ILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor. This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the first results on plasma. The capacitors were replaced and high voltage tests of the capacitors were performed. An extensive calibration of all the measurements in the RF circuit was carried out. New simulation tools were created and control algorithms were implemented for the - toroidal and poloidal - phase control of the array as well as for the matching of the second stage. New protections are being implemented for the thermal and voltage protection of the capacitors. Low voltage matching tests were performed before the high power commissioning. Finally the first results on plasma are presented, showing that the new controls allow extending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved., QC 20200421

The JET ICRF ITER-like Antenna (ILA) has been operated at 33,42 and 47 MHz in 2008-2009 but stopped operation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a spare capacitor showed that a micro-leak was caused by the cycle wear of a capacitor's internal bellows. The ILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor. This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the first results on plasma. The capacitors were replaced and high voltage tests of the capacitors were performed. An extensive calibration of all the measurements in the RF circuit was carried out. New simulation tools were created and control algorithms were implemented for the - toroidal and poloidal - phase control of the array as well as for the matching of the second stage. New protections are being implemented for the thermal and voltage protection of the capacitors. Low voltage matching tests were performed before the high power commissioning. Finally the first results on plasma are presented, showing that the new controls allow extending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved., For complete list of authors see http://dx.doi.org/10.1016/j.fusengdes.2017.05.050

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N-2) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 degrees phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation. (C) 2016 The Authors. Published by Elsevier Ltd., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2016.10.026

The JET ICRF ITER-like Antenna (ILA) has been operated at 33,42 and 47 MHz in 2008-2009 but stopped operation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a spare capacitor showed that a micro-leak was caused by the cycle wear of a capacitor's internal bellows. The ILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor. This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the first results on plasma. The capacitors were replaced and high voltage tests of the capacitors were performed. An extensive calibration of all the measurements in the RF circuit was carried out. New simulation tools were created and control algorithms were implemented for the - toroidal and poloidal - phase control of the array as well as for the matching of the second stage. New protections are being implemented for the thermal and voltage protection of the capacitors. Low voltage matching tests were performed before the high power commissioning. Finally the first results on plasma are presented, showing that the new controls allow extending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved., For complete list of authors see http://dx.doi.org/10.1016/j.fusengdes.2017.05.050

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N-2) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 degrees phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation. (C) 2016 The Authors. Published by Elsevier Ltd., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2016.10.026

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N 2 ) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 °phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation.

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N 2 ) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 °phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation.

The JET ICRF ITER-like Antenna (ILA) has been operated at 33, 42 and 47 MHz in 2008–2009 but stoppedoperation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a sparecapacitor showed that a micro-leak was caused by the cycle wear of a capacitor’s internal bellows. TheILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor.This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the firstresults on plasma.The capacitors were replaced and high voltage tests of the capacitors were performed. An extensivecalibration of all the measurements in the RF circuit was carried out. New simulation tools were createdand control algorithms were implemented for the – toroidal and poloidal – phase control of the array aswell as for the matching of the second stage. New protections are being implemented for the thermal andvoltage protection of the capacitors. Low voltage matching tests were performed before the high powercommissioning. Finally the first results on plasma are presented, showing that the new controls allowextending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved.

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N 2 ) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 °phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation.

The JET ICRF ITER-like Antenna (ILA) has been operated at 33, 42 and 47 MHz in 2008–2009 but stoppedoperation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a sparecapacitor showed that a micro-leak was caused by the cycle wear of a capacitor’s internal bellows. TheILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor.This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the firstresults on plasma.The capacitors were replaced and high voltage tests of the capacitors were performed. An extensivecalibration of all the measurements in the RF circuit was carried out. New simulation tools were createdand control algorithms were implemented for the – toroidal and poloidal – phase control of the array aswell as for the matching of the second stage. New protections are being implemented for the thermal andvoltage protection of the capacitors. Low voltage matching tests were performed before the high powercommissioning. Finally the first results on plasma are presented, showing that the new controls allowextending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved.

The JET ICRF ITER-like Antenna (ILA) has been operated at 33, 42 and 47 MHz in 2008–2009 but stoppedoperation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a sparecapacitor showed that a micro-leak was caused by the cycle wear of a capacitor’s internal bellows. TheILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor.This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the firstresults on plasma.The capacitors were replaced and high voltage tests of the capacitors were performed. An extensivecalibration of all the measurements in the RF circuit was carried out. New simulation tools were createdand control algorithms were implemented for the – toroidal and poloidal – phase control of the array aswell as for the matching of the second stage. New protections are being implemented for the thermal andvoltage protection of the capacitors. Low voltage matching tests were performed before the high powercommissioning. Finally the first results on plasma are presented, showing that the new controls allowextending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved.

The JET ICRF ITER-like Antenna (ILA) has been operated at 33,42 and 47 MHz in 2008-2009 but stopped operation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a spare capacitor showed that a micro-leak was caused by the cycle wear of a capacitor's internal bellows. The ILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor. This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the first results on plasma. The capacitors were replaced and high voltage tests of the capacitors were performed. An extensive calibration of all the measurements in the RF circuit was carried out. New simulation tools were created and control algorithms were implemented for the - toroidal and poloidal - phase control of the array as well as for the matching of the second stage. New protections are being implemented for the thermal and voltage protection of the capacitors. Low voltage matching tests were performed before the high power commissioning. Finally the first results on plasma are presented, showing that the new controls allow extending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved., For complete list of authors see http://dx.doi.org/10.1016/j.fusengdes.2017.05.050

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N-2) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 degrees phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation. (C) 2016 The Authors. Published by Elsevier Ltd., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2016.10.026

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N 2 ) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 °phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation.

The JET ICRF ITER-like Antenna (ILA) has been operated at 33, 42 and 47 MHz in 2008–2009 but stoppedoperation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a sparecapacitor showed that a micro-leak was caused by the cycle wear of a capacitor’s internal bellows. TheILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor.This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the firstresults on plasma.The capacitors were replaced and high voltage tests of the capacitors were performed. An extensivecalibration of all the measurements in the RF circuit was carried out. New simulation tools were createdand control algorithms were implemented for the – toroidal and poloidal – phase control of the array aswell as for the matching of the second stage. New protections are being implemented for the thermal andvoltage protection of the capacitors. Low voltage matching tests were performed before the high powercommissioning. Finally the first results on plasma are presented, showing that the new controls allowextending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved.

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N 2 ) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 °phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation.

The JET ICRF ITER-like Antenna (ILA) has been operated at 33,42 and 47 MHz in 2008-2009 but stopped operation in 2009 due to the failure of one of the tuning capacitors inside the antenna. Tests on a spare capacitor showed that a micro-leak was caused by the cycle wear of a capacitor's internal bellows. The ILA was reinstated with a new operating scheme minimizing the full stroke requests of the capacitor. This contribution gives an overview of the works undertaken to reinstate the JET ILA up to the first results on plasma. The capacitors were replaced and high voltage tests of the capacitors were performed. An extensive calibration of all the measurements in the RF circuit was carried out. New simulation tools were created and control algorithms were implemented for the - toroidal and poloidal - phase control of the array as well as for the matching of the second stage. New protections are being implemented for the thermal and voltage protection of the capacitors. Low voltage matching tests were performed before the high power commissioning. Finally the first results on plasma are presented, showing that the new controls allow extending the range of the operation to lower (29 MHz) and higher (51 MHz) frequencies than previously achieved., For complete list of authors see http://dx.doi.org/10.1016/j.fusengdes.2017.05.050

Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N-2) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 degrees phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation. (C) 2016 The Authors. Published by Elsevier Ltd., For complete list of authors see http://dx.doi.org/10.1016/j.nme.2016.10.026

A low profile dual-band multiple-input-multiple-output (MIMO) antenna system is proposed. The proposed MIMO antenna consists of two low profile unbalanced fed inverted L antennas with parasitic elements to resonate at 2.45 GHz and 5 GHz. The structure is uncomplicated by locating two ultra low profile inverted L antennas on the finite conducting plane. The proposed MIMO antenna is numerically and experimentally analyzed. When the size of conducting plane is 55 mm by 55 mm and the height of antenna is 9 mm, the directive gain of 4.11 dBi and the S11 bandwidth of 5.71% are achieved for lower frequency of 2.45 GHz. At the upper frequency of 5 GHz, the directive gain of 8.22 dBi and the S11 bandwidth of 6% are obtained. The proposed antenna has good diversity gain, shown by the correlation coefficient becomes less than 0.005 at the frequency of 2.45 GHz and 5 GHz band when the distance between inverted L elements is 41 mm. A good agreement between calculated and measured results is obtained. The results show that the weak mutual coupling of the proposed antenna and this feature enables it to cover the required bandwidths for WLAN operation at the 2.4 GHz band and 5 GHz band., Wireless Engineering and Technology, 5(3), pp.54-61; 2014

In the technological advancement of FPGAs - Field Programmable Gate Arrays, there have been many paths for DSP applications where FPGA has many advantages in providing optimal device utilization adaptability and high design flexibility. FPGAs allow appropriate customization of hardware at acceptable prices. They are cost as well as time saving when making configurations of standard products. FPGA technology is indispensable in regard with long-term availability and harsh industrial environments. Basing on these features Alstom Power AB, Växjö (Mr.Sonny Bui) designed a controller using VHDL coding which has been implemented using Xilinx ISE on a FPGA board (Virtex-II Pro Board, FG256). Chipscope Logic Analyzer is used to capture the logic in VHDL coding and display all the internal node signals of the circuit using JTAG interface. Most of the thesis work deals with effective working and better understanding of Chipscope technology., +919160176623, +918885237092