227 results on '"Fessia, P."'
Search Results
2. Integration, (De-) Installation and Alignment
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Fessia, P., primary and Durand, H. Mainaud, additional
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- 2024
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3. Draft genome sequences of two biocontrol agents isolated from the maize phyllosphere: Bacillus subtilis strain EM-A7 and Bacillus velezensis strain EM-A8
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Aluminé Fessia, Melina Sartori, Julieta Orlando, Germán Barros, and Andrea Nesci
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Draft genome sequencing ,Biofilm ,Bacillus ,Biocontrol agent ,Phyllosphere ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
In the present study, the genomes of B. subtilis EM-A7 and B. velezensis EM-A8 were sequenced and annotated. The Illumina sequencing platform (NovaSeq PE150) was used to sequence the genomic DNA. There were 6 277 054 raw reads for EM-A7, with a Q20 of 97.52 % and 43.78 % GC, and 8 030 262 raw reads for EM-A8, with a Q20 of 97.53 % and 46.21 % GC. Annotation was carried out by the NCBI Prokaryotic Genome Annotation Pipeline (PGAP). The strains were classified taxonomically on the basis of an average nucleotide identity analysis (ANI), as well as through a dDDh analysis on the Genome-to-Genome Distance Calculator (GGDC v3.0). The pipeline predicted 4062 protein-coding sequences (CDSs) and 73 RNA genes (62 tRNA and 6 rRNA) for EM-A7, and 3797 protein-coding sequences (CDSs) and 80 RNA genes for EM-A8. These findings enhance our understanding of the two strains’ potential as biocontrol agents to manage disease in maize.
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- 2024
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4. Development of student mental health scale
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Ghinaya Ummul Mukminin, Farhan Zakariyya, Helli Ihsan, Lira Fessia Damaianti, Siti Chotidjah, Asriani Cahya Fitria, Aulia Azmi Izzatulhaq, Daniela Pauleta Naomi, Krisbandaru Hayuningtyas, and Wida Widiyani Putri
- Subjects
development of scale ,evaluation ,high school student ,mental health ,Theory and practice of education ,LB5-3640 - Abstract
Mental health among high school (SMA) students is an important issue that needs attention. This research aims to develop a mental health scale for high school students, which is expected to be able to detect whether students have mental problems or not, so that students with problems can get fast and appropriate help. Apart from that, this scale is also expected to be able to see the extent to which students' mental development is good. This scale was developed based on three dimensions of mental health, namely peace with oneself, social interaction function, and basic and advanced psychological needs. The research method employed in this study is the quantitative method. Meanwhile the participants involved in this research were 1045 high school students consisting of students in grades 10-12. The analysis technique uses item-total correlation and exploratory factor analysis. The result was that 25 items had satisfactory item-total correlations with values ranging from 0.307 to 0.677. The results of the exploratory factor analysis that has been carried out are the formation of three dimensions with a different distribution of items from the initial design. Apart from that, this measuring tool also has a cumulative proportion of variance explained by factors of 0.434 and a model fit of CFI (0.910) and TLI (0.900). In the future, in-depth research is needed regarding the external validity of this mental health scale, which is correlated with other variables using convergent and discriminant validity methods. Abstrak Kesehatan mental pada siswa Sekolah Menengah Atas (SMA) merupakan salah satu permasalahan penting yang perlu menjadi perhatian. Penelitian ini bertujuan untuk mengembangkan alat ukur kesehatan mental bagi siswa SMA, yang diharapkan dapat mendeteksi apakah siswa memiliki permasalahan mental atau tidak, sehingga siswa yang bermasalah bisa mendapatkan pertolongan yang cepat dan tepat. Selain itu, alat ukur ini juga diharapkan dapat melihat sejauh mana mental siswa berkembang dengan baik. Skala ini dikembangkan berdasarkan tiga dimensi kesehatan mental yaitu berdamai dengan diri sendiri, fungsi interaksi sosial, serta kebutuhan psikologis dasar dan lanjut. Metode penelitian yang digunakan dalam penelitian ini adalah metode kuantitaif, sedangkan partisipan yang terlibat dalam penelitian ini sebanyak 1045 siswa SMA terdiri dari siswa kelas 10-12. Teknis analisis menggunakan korelasi item-total dan analisis faktor eksploratori. Hasilnya 25 item memiliki korelasi item-total yang memuaskan dengan nilai antara 0.307 sampai 0.677. Hasil dari analisis faktor eksploratori yaitu terbentuknya tiga dimensi dengan sebaran item yang berbeda dari rancangan awal, selain itu alat ukur ini juga memiliki proporsi kumulatif varian yang dijelaskan oleh faktor sebesar 0.434 dan model fit CFI (0.910) dan TLI (0.900). Untuk selanjutnya, perlu penelitian mendalam mengenai validitas eksternal skala kesehatan mental ini yang dikorelasikan dengan variabel-variabel lain menggunakan metode validitas konvergen dan diskriminan. Kata Kunci: Evaluasi; kesehatan mental; siswa SMA; pengembangan alat ukur
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- 2024
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5. Cultural Literacy Based Critical Reading Teaching Material with Active Reader Strategy for Junior High School
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Damaianti, Vismaia S., Damaianti, Lira Fessia, and Mulyati, Yeti
- Abstract
This article describes the findings of a study aimed at producing a set of cultural literacy-oriented critical reading teaching material. This material is developed as a countermeasure to the increasingly thin sensitivity of society, especially the students toward noble values of religion, custom, and culture. With this material student get a significant critical understanding of the discourse with the content of noble value of Indonesian culture. The understanding is attained by students through active reader strategy. There are four important principles developed in understanding the text through this strategy, namely 1) building basic understanding of the text, 2) conducting reading activities in chronological order of the text, 3) identifying the style and language of the text, and 4) critically deepening the understanding of the text. The emphasis on cultural critical understanding became the focus of this research. Thus, critical reading question technique 501 is required. With this technique student can predict causation, establish logical and emotive understanding, and predict the implications of ideas. The implementation of development of this teaching material is based on the stages of Design Based Research. Data is obtained through expert scales and trials to junior high school students in Bandung. The result of this research is a critical reading textbook based on cultural literacy with active reader strategy that is effective to be used for junior high school students. The implication of this research is the acquisition of students' sensitivity toward noble values of religion, custom, and culture that can be internalized in their lives.
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- 2017
6. In vitro studies of biofilm-forming Bacillus strains, biocontrol agents isolated from the maize phyllosphere
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Aluminé Fessia, Melina Sartori, Daiana García, Luciana Fernández, Rodrigo Ponzio, Germán Barros, and Andrea Nesci
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Biofilm ,Bacillus ,Environmental conditions ,Motility ,Phyllosphere ,Biotechnology ,TP248.13-248.65 ,Microbiology ,QR1-502 - Abstract
We aimed to assess how biofilm formation by three Bacillus isolates was affected by changes in temperature, water potential, growth media, time, and the combinations between these factors. The strains had been selected as potential biological control agents (BCAs) in earlier studies, and they were identified as B. subtilis and B. velezensis spp. through 16 rRNA sequencing and MALDI-TOF MS. Maize leaves (ML) were used as one of the growth media, since they made it possible to simulate the nutrient content in the maize phyllosphere, from which the bacteria were originally isolated. The strains were able to form biofilm both in ML and biofilm-inducing MSgg after 24, 48, and 72 h. Biofilm development in the form of pellicles and architecturally complex colonies varied morphologically from one strain to another and depended on the conditions mentioned above. In all cases, colonies and pellicles were less complex when both temperature and water potential were lower. Scanning electron microscopy (SEM) revealed that changing levels of complexity in pellicles were correlated with those in colonies. Statistical analyses found that the quantification of biofilm produced by the isolates was influenced by all the conditions tested. In terms of motility (which may contribute to biofilm formation), swimming and swarming were possible for all strains in 0.3 and 0.7% agar, respectively. A more in-depth understanding of how abiotic factors influence biofilm formation can contribute to a more effective use of these biocontrol strains against pathogens in the maize phyllosphere.
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- 2022
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7. Insertion Magnets
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Ambrosio, G., Anerella, M., Bossert, R., Cheng, D., Chlachidze, G., Dietderich, D., Ramos, D Duarte, Fabbricatore, P., Farinon, S., Felice, H., Ferracin, P., Fessia, P., Matos, J. Garcia, Ghosh, A., Hagen, P., Bermudez, S. Izquierdo, Juchno, M., Krave, S., Marchevsky, M., Nakamoto, T., Ogitsu, T., Perez, J. C., Prin, H., Rifflet, J. M., Sabbi, G. L., Sasaki, K., Schmalzle, J., Segreti, M., Sugano, M., Todesco, E., Toral, F., Volpini, G., Wanderer, P., Wang, X., Weelderen, R. V., Xu, Q., and Yu, M.
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Physics - Accelerator Physics - Abstract
Chapter 3 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a new energy frontier for exploration in 2010, it has gathered a global user community of about 7,000 scientists working in fundamental particle physics and the physics of hadronic matter at extreme temperature and density. To sustain and extend its discovery potential, the LHC will need a major upgrade in the 2020s. This will increase its luminosity (rate of collisions) by a factor of five beyond the original design value and the integrated luminosity (total collisions created) by a factor ten. The LHC is already a highly complex and exquisitely optimised machine so this upgrade must be carefully conceived and will require about ten years to implement. The new configuration, known as High Luminosity LHC (HL-LHC), will rely on a number of key innovations that push accelerator technology beyond its present limits. Among these are cutting-edge 11-12 tesla superconducting magnets, compact superconducting cavities for beam rotation with ultra-precise phase control, new technology and physical processes for beam collimation and 300 metre-long high-power superconducting links with negligible energy dissipation. The present document describes the technologies and components that will be used to realise the project and is intended to serve as the basis for the detailed engineering design of HL-LHC., Comment: 19 pages, Chapter 3 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report
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- 2017
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8. Integration and (De-)installation
- Author
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Fessia, P. and Weisz, S.
- Subjects
Physics - Accelerator Physics - Abstract
Chapter 15 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a new energy frontier for exploration in 2010, it has gathered a global user community of about 7,000 scientists working in fundamental particle physics and the physics of hadronic matter at extreme temperature and density. To sustain and extend its discovery potential, the LHC will need a major upgrade in the 2020s. This will increase its luminosity (rate of collisions) by a factor of five beyond the original design value and the integrated luminosity (total collisions created) by a factor ten. The LHC is already a highly complex and exquisitely optimised machine so this upgrade must be carefully conceived and will require about ten years to implement. The new configuration, known as High Luminosity LHC (HL-LHC), will rely on a number of key innovations that push accelerator technology beyond its present limits. Among these are cutting-edge 11-12 tesla superconducting magnets, compact superconducting cavities for beam rotation with ultra-precise phase control, new technology and physical processes for beam collimation and 300 metre-long high-power superconducting links with negligible energy dissipation. The present document describes the technologies and components that will be used to realise the project and is intended to serve as the basis for the detailed engineering design of HL-LHC., Comment: 8 pages, chapter 15 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report
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- 2017
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9. Potential factors involved in the early pathogenesis of Streptococcus uberis mastitis: a review
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Fessia, Aluminé S. and Odierno, Liliana M.
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- 2021
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10. El impacto de la virtualidad en los procesos de aprendizaje y enseñanza en los Profesorados del Instituto de Formación Docente Continua San Luis 2020.
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Facundo Morales Suárez, Romina Fessia, María Cecilia Arellano Lucas, Alicia Rita Collado, Cristina Noemí Guirao, and María Flavia Lorena Morales
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procesos de eneseñanza y aprendizaje ,virtualidad ,educación superior ,Social Sciences ,History of scholarship and learning. The humanities ,AZ20-999 - Abstract
El presente trabajo tiene como objetivo el análisis de los resultados obtenidos de dos relevamientos llevados a cabo a la totalidad de estudiantes de los profesorados del Instituto de Formación Docente Continua San Luis y al cuerpo docente de la institución durante el año académico 2020 acerca del impacto de la virtualidad en sus procesos de aprendizaje y de enseñanza. El propósito de dichos relevamientos, realizados de forma virtual a fines del primer y del segundo cuatrimestre respectivamente, del año mencionado, fue por un lado obtener información concreta acerca de algunos aspectos contextuales, tecnológicos y pedagógicos del proceso de enseñanza-aprendizaje en la virtualidad para encontrar áreas de mejora e identificar fortalezas con el fin de optimizar las prácticas educativas. Por otro lado, a partir de los datos relevados se tomaron decisiones institucionales para re-organizar el segundo cuatrimestre, por lo que resultó necesario indagar sobre el impacto de dichas medidas en los procesos educativos llevados a cabo en el segundo cuatrimestre 2020, para luego evaluar alternativas de mejora para el año 2021. Desde el punto de vista metodológico, este estudio es de tipo exploratorio y se enmarca en una lógica mixta cuantitativa y cualitativa. Los resultados obtenidos muestran que tanto estudiantes como docentes fueron superando progresivamente las dificultades experimentadas durante la primera mitad del año a medida que se iban familiarizando con los entornos virtuales, los recursos digitales y las nuevas formas de comunicación mediadas por la virtualidad. Además, las medidas implementadas en el segundo cuatrimestre a partir de los datos recabados en el primer relevamiento tuvieron un impacto positivo en los procesos de enseñanza y en la propia valoración de los/las estudiantes acerca de su propio proceso de aprendizaje en un contexto de pandemia y aislamiento social.
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- 2022
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11. Insertion Magnets
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Ambrosio, G, Anerella, M, Bossert, R, Cheng, D, Chlachidze, G, Dietderich, D, Ramos, D Duarte, Fabbricatore, P, Farinon, S, Felice, H, Ferracin, P, Fessia, P, Matos, J Garcia, Ghosh, A, Hagen, P, Bermudez, S Izquierdo, Juchno, M, Krave, S, Marchevsky, M, Nakamoto, T, Ogitsu, T, Perez, JC, Prin, H, Rifflet, JM, Sabbi, GL, Sasaki, K, Schmalzle, J, Segreti, M, Sugano, M, Todesco, E, Toral, F, Volpini, G, Wanderer, P, Wang, X, Weelderen, RV, Xu, Q, and Yu, M
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physics.acc-ph - Abstract
Chapter 3 in High-Luminosity Large Hadron Collider (HL-LHC) : PreliminaryDesign Report. The Large Hadron Collider (LHC) is one of the largest scientificinstruments ever built. Since opening up a new energy frontier for explorationin 2010, it has gathered a global user community of about 7,000 scientistsworking in fundamental particle physics and the physics of hadronic matter atextreme temperature and density. To sustain and extend its discovery potential,the LHC will need a major upgrade in the 2020s. This will increase itsluminosity (rate of collisions) by a factor of five beyond the original designvalue and the integrated luminosity (total collisions created) by a factor ten.The LHC is already a highly complex and exquisitely optimised machine so thisupgrade must be carefully conceived and will require about ten years toimplement. The new configuration, known as High Luminosity LHC (HL-LHC), willrely on a number of key innovations that push accelerator technology beyond itspresent limits. Among these are cutting-edge 11-12 tesla superconductingmagnets, compact superconducting cavities for beam rotation with ultra-precisephase control, new technology and physical processes for beam collimation and300 metre-long high-power superconducting links with negligible energydissipation. The present document describes the technologies and componentsthat will be used to realise the project and is intended to serve as the basisfor the detailed engineering design of HL-LHC.
- Published
- 2017
12. HL-LHC IT STRING: Status and Perspectives
- Author
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Bajko, M., Baglin, V., Ballarino, A., Bednarek, M. J., Bertolasi, S., Bertone, C., Blanchard, S., Bozzini, D., Coulot, E., Coupat, C., Cruikshank, P., Dangelo, Giorgio, Dragoni, F., Fessia, P., Gascon, J. C., Girardot, G., Heredia Garcia, Nicolas, Herty, A., Kosmicki, A., Lees, A. J., e Naour, S., Nowak, E., Maan, W., Martinez Selles, Alejandro, Martino, M., Metselaar, J., Pojer, M., Otto, T., Rolando, G., Pelletier, S., Perin, A., Piednoir, D., Richards, E., Rodriguez Perez, Marta, Santos, N. Dos, Thiesen, H., Todesco, E., Yammine, S., Zerlauth, M., Zawilinski, J., Vergara Fernandez, Estrella, and Wollmann, D.
- Abstract
The HL-LHC IT STRING, an integrated test stand for the major components of the HL-LHC Inner Triplet (IT) zone, is in its construction phase in a surface building at CERN. The main motivation is to study and validate the collective behavior of the different systems: magnets, circuit protection, cryogenics for magnets and superconducting link, magnet powering, vacuum, alignment, and interconnections between magnets and superconducting link. During the past two years, the major focus has been on the technical infrastructure definition and implementation, while preparing the installation sequences and procedures for the major elements. The String Validation Program (SVP) has been agreed with the HL-LHC Work Packages, allowing to set up a joint and optimized test program and to integrate it in a schedule. In this paper we describe the IT String installations and describe the main differences between the HL-LHC IT String and the future HL-LHC machine. The main line of the test program and the motivation of a full thermal cycle with a cost benefit analysis will be presented.
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- 2024
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13. Development of MQXF: The Nb3Sn Low- $\beta$ Quadrupole for the HiLumi LHC
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Ferracin, P, Ambrosio, G, Anerella, M, Ballarino, A, Bajas, H, Bajko, M, Bordini, B, Bossert, R, Cheng, DW, Dietderich, DR, Chlachidze, G, Cooley, L, Felice, H, Ghosh, A, Hafalia, R, Holik, E, Bermudez, S Izquierdo, Fessia, P, Grosclaude, P, Guinchard, M, Juchno, M, Krave, S, Lackner, F, Marchevsky, M, Marinozzi, V, Nobrega, F, Oberli, L, Pan, H, Perez, JC, Prin, H, Rysti, J, Rochepault, E, Sabbi, G, Salmi, T, Schmalzle, J, Sorbi, M, Tavares, S Sequeira, Todesco, E, Wanderer, P, Wang, X, and Yu, M
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Nuclear and Plasma Physics ,Physical Sciences ,High Luminosity Large Hadron Collider ,interaction regions ,low-beta quadrupoles ,Nb3Sn magnets ,Condensed Matter Physics ,Electrical and Electronic Engineering ,Materials Engineering ,General Physics ,Electrical engineering ,Condensed matter physics - Abstract
The High Luminosity (HiLumi) Large Hadron Collider (LHC) project has, as the main objective, to increase the LHC peak luminosity by a factor five and the integrated luminosity by a factor ten. This goal will be achieved mainly with a new interaction region layout, which will allow a stronger focusing of the colliding beams. The target will be to reduce the beam size in the interaction points by a factor of two, which requires doubling the aperture of the low-β (or inner triplet) quadrupole magnets. The use of Nb3Sn superconducting material and, as a result, the possibility of operating at magnetic field levels in the windings higher than 11 T will limit the increase in length of these quadrupoles, called MQXF, to acceptable levels. After the initial design phase, where the key parameters were chosen and the magnet's conceptual design finalized, the MQXF project, a joint effort between the U.S. LHC Accelerator Research Program and the Conseil Europeén pour la Recherche Nucleaíre (CERN), has now entered the construction and test phase of the short models. Concurrently, the preparation for the development of the full-length prototypes has been initiated. This paper will provide an overview of the project status, describing and reporting on the performance of the superconducting material, the lessons learnt during the fabrication of superconducting coils and support structure, and the fine tuning of the magnet design in view of the start of the prototyping phase.
- Published
- 2016
14. Development of MQXF: The Nb3Sn Low-β Quadrupole for the HiLumi LHC
- Author
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Ferracin, P, Ambrosio, G, Anerella, M, Ballarino, A, Bajas, H, Bajko, M, Bordini, B, Bossert, R, Cheng, DW, Dietderich, DR, Chlachidze, G, Cooley, L, Felice, H, Ghosh, A, Hafalia, R, Holik, E, Izquierdo Bermudez, S, Fessia, P, Grosclaude, P, Guinchard, M, Juchno, M, Krave, S, Lackner, F, Marchevsky, M, Marinozzi, V, Nobrega, F, Oberli, L, Pan, H, Perez, JC, Prin, H, Rysti, J, Rochepault, E, Sabbi, G, Salmi, T, Schmalzle, J, Sorbi, M, Sequeira Tavares, S, Todesco, E, Wanderer, P, Wang, X, and Yu, M
- Subjects
High Luminosity Large Hadron Collider ,interaction regions ,low-beta quadrupoles ,Nb3Sn magnets ,General Physics ,Electrical and Electronic Engineering ,Condensed Matter Physics ,Materials Engineering - Abstract
The High Luminosity (HiLumi) Large Hadron Collider (LHC) project has, as the main objective, to increase the LHC peak luminosity by a factor five and the integrated luminosity by a factor ten. This goal will be achieved mainly with a new interaction region layout, which will allow a stronger focusing of the colliding beams. The target will be to reduce the beam size in the interaction points by a factor of two, which requires doubling the aperture of the low-β (or inner triplet) quadrupole magnets. The use of Nb3Sn superconducting material and, as a result, the possibility of operating at magnetic field levels in the windings higher than 11 T will limit the increase in length of these quadrupoles, called MQXF, to acceptable levels. After the initial design phase, where the key parameters were chosen and the magnet's conceptual design finalized, the MQXF project, a joint effort between the U.S. LHC Accelerator Research Program and the Conseil Europeén pour la Recherche Nucleaíre (CERN), has now entered the construction and test phase of the short models. Concurrently, the preparation for the development of the full-length prototypes has been initiated. This paper will provide an overview of the project status, describing and reporting on the performance of the superconducting material, the lessons learnt during the fabrication of superconducting coils and support structure, and the fine tuning of the magnet design in view of the start of the prototyping phase.
- Published
- 2016
15. Models and experimental results from the wide aperture Nb-Ti magnets for the LHC upgrade
- Author
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Kirby, G., Auchmann, B., Bajko, M., Charrondiere, M., Bourcey, N., Datskov, V. I., Fessia, P., Feuvrier, J., Galbraith, P., Tabares, A. Garcia, Garcia-Perez, J., Granieri, P., Hagen, P., Lorin, C., Perez, J. C., Russenschuck, S., Sahner, T., Segreti, M., Todesco, E., and Willering, G.
- Subjects
Physics - Accelerator Physics - Abstract
MQXC is a Nb-Ti quadrupole designed to meet the accelerator quality requirements needed for the phase-1 LHC upgrade, now superseded by the high luminosity upgrade foreseen in 2021. The 2-m-long model magnet was tested at room temperature and 1.9 K. The technology developed for this magnet is relevant for other magnets currently under development for the high-luminosity upgrade, namely D1 (at KEK) and the large aperture twin quadrupole Q4 (at CEA). In this paper we present MQXC test results, some of the specialized heat extraction features, spot heaters, temperature sensor mounting and voltage tap development for the special open cable insulation. We look at some problem solving with noisy signals, give an overview of electrical testing, look at how we calculate the coil resistance during at quench and show that the heaters are not working We describe the quench signals and its timing, the development of the quench heaters and give an explanation of an Excel quench calculation and its comparison including the good agreement with the MQXC test results. We propose an improvement to the magnet circuit design to reduce voltage to ground values by factor 2. The program is then used to predict quench Hot-Spot and Voltages values for the D1 dipole and the Q4 quadrupole., Comment: 8 pages, Contribution to WAMSDO 2013: Workshop on Accelerator Magnet, Superconductor, Design and Optimization; 15 - 16 Jan 2013, CERN, Geneva, Switzerland
- Published
- 2014
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16. Relationship between the perception of classroom learning environment and student academic emotions
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Lira Fessia Damaianti, Risda Awaliya, and Ifa Hanifah Misbach
- Subjects
perception of classroom learning environment academic emotions learning model educational psychology ,Special aspects of education ,LC8-6691 - Abstract
Perception of classroom environment and academic emotions have an important role in the educational context. Both have a relationship that can not be separated from each other. This study aims to examine the correlation between perception of classroom learning environment and academic emotions in junior high school students in the city of Bandung. Using the quasy experimental method with a quantitative approach with a correlational design with a sample of 81 respondents aged 12-14 years who were selected using a purposive sampling technique. The instruments in this study consisted of academic emotions questionnaire (AEQ) and my class inventory (MCI) that had been translated into Indonesian. Data analysis was performed using the Pearson product moment. The results showed a positive correlation between the dimensions of competitiveness with negative academic emotions and a negative correlation between the dimensions of satisfaction with negative academic emotions in junior high school students in the city of Bandung.
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- 2019
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17. Developing Students' Scientific Literacy through Wikipedia Digital Library.
- Author
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Toharudin, Uus, Damaianti, Lira Fessia, Hizqiyah, Ida Yayu Nurul, and Kurniawan, Iwan Setia
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SCIENTIFIC literacy ,DIGITAL libraries ,RASCH models ,HIGH school students ,REFERENCE sources - Abstract
This study investigates the impact of utilizing the digital library Wikipedia on high school students' scientific literacy skills in biology. This research used a quasi-experiment design with a one-group pre-test and post-test method, conducted in a high school in Bandung, Indonesia. The participants consisted of 60 tenth-grade students. The research instrument consisted of 24 multiple-choice questions designed to assess nine scientific literacy indicators, including the ability to describe phenomena scientifically, design and evaluate scientific investigations, and interpret data and evidence scientifically. Each question was scored dichotomously, with the correct answer receiving a score of 1 and incorrect answers assigned a score of 0. Pre-test and post-test scores were analyzed using the Rasch model through Winsteps Version 3.73. Based on data analysis, the items fit with the Rasch model because the infit and outfit MNSQ is 1.0 and the residual item of unexplained variance is 2.3% to 9.8%. The reliability of the items shows an item value of 0.97, which is classified as excellent. The indicators considered the most difficult before being treated were identifying accurate scientific ideas, distinguishing between types of sources, and evaluating literature source validity after the treatment. There was a significant improvement in students' scientific literacy skills after utilizing the digital library, Wikipedia. The findings provide valuable insights into the effectiveness of integrating digital media into biology courses, highlighting the potential of Wikipedia as a digital reference source for enhancing students' scientific literacy in high school settings. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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18. Mechanical and thermal design of the target neutral beam absorber for the High-Luminosity LHC upgrade
- Author
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P. Santos Díaz, F. Sanchez Galan, R. De Maria, E. Kepes, P. Steinberg, R. Longo, S. Mazzoni, F. Cerutti, M. Sabate Gilarte, A. Infantino, B. Salvant, M. Murray, O. Boettcher, J. Hansen, V. Baglin, N. Zelko, E. Bravin, H. Mainaud, P. Bestmann, A. Herty, P. Fessia, and M. Gonzalez de la Aleja Cabana
- Subjects
Nuclear and particle physics. Atomic energy. Radioactivity ,QC770-798 - Abstract
The High-Luminosity target neutral beam absorber (TAXN) is the radiation absorber of the neutral particle debris generated at the beam collisions carried out in the ATLAS and CMS detectors at the Large Hadron Collider (LHC). The new absorber will protect the superconducting magnets from this radiation to prevent their quenching at a design luminosity of 7.5×10^{34} cm^{−2} s^{−1}. This article describes the mechanical design of the TAXN assembly and the recombination chamber together with the thermal computations performed for the water-cooling and bakeout system prepared for the engineering design review held in January, 2021. It takes into account the internal integration of the zero degree calorimeter and beam rate of neutrals luminosity detector as well as their physics case overview. In addition, it provides the beam aperture breakdown and the heat deposition expected in the absorber.
- Published
- 2022
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- View/download PDF
19. La literatura en el aula de Inglés como lengua extranjera: un análisis de sus prácticas de enseñanza en el nivel secundario del sistema educativo provincial de San Luis (Región 1)
- Author
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Andrea Puchmüller, Lucía Quiroga, Alicia Collado, Romina Fessia, and Milagro Asensio Asensio
- Subjects
Education - Abstract
La presente investigación se focaliza en caracterizar el contexto situacional de la enseñanza de la literatura en el aula de inglés de las escuelas de la provincia de San Luis, para analizar y describir el rol que los docentes asignan a la literatura y los supuestos subyacentes metodológico-didácticos implícitos en sus prácticas de enseñanza. Se realizó un estudio cualitativo, descriptivo. La muestra consistió en 12 docentes de inglés de nivel secundario de la región 1 de San Luis. Los datos se recolectaron por medio de entrevistas semi-estructuradas y se triangularon con los programas curriculares de los docentes entrevistados. Como técnicas de análisis se utilizaron la categorización y el análisis de contenido. Se observa que el rol que los docentes de inglés asignan a la literatura en su práctica docente es de carácter secundario, utilizándola solo como un vehículo para la enseñanza de la lengua. Se percibe a la literatura como un contenido aislado que no puede ser relacionado con las demás áreas del lenguaje o con otras disciplinas.
- Published
- 2016
20. Mechanical and thermal design of the target neutral beam absorber for the High-Luminosity LHC upgrade
- Author
-
Santos Díaz, P., primary, Galan, F. Sanchez, additional, De Maria, R., additional, Kepes, E., additional, Steinberg, P., additional, Longo, R., additional, Mazzoni, S., additional, Cerutti, F., additional, Sabate Gilarte, M., additional, Infantino, A., additional, Salvant, B., additional, Murray, M., additional, Boettcher, O., additional, Hansen, J., additional, Baglin, V., additional, Zelko, N., additional, Bravin, E., additional, Mainaud, H., additional, Bestmann, P., additional, Herty, A., additional, Fessia, P., additional, and Gonzalez de la Aleja Cabana, M., additional
- Published
- 2022
- Full Text
- View/download PDF
21. The HL-LHC Machine
- Author
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Bejar, I., primary, Brüning, O., additional, Fessia, P., additional, Rossi, L., additional, Tomas, R., additional, and Zerlauth, M., additional
- Published
- 2015
- Full Text
- View/download PDF
22. High-Luminosity Large Hadron Collider (HL-LHC): Technical design report
- Author
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Aberle, O., Béjar Alonso, I, Brüning, O, Fessia, P, Rossi, L, Tavian, L, Zerlauth, M, Adorisio, C., Adraktas, A., Ady, M., Albertone, J., Alberty, L., Alcaide Leon, M., Alekou, A., Alesini, D., Ferreira, B. Almeida, Lopez, P. Alvarez, Ambrosio, G., Andreu Munoz, P., Anerella, M., Angal-Kalinin, D., Antoniou, F., Apollinari, G., Apollonio, A., Appleby, R., Arduini, G., Alonso, B. Arias, Artoos, K., Atieh, S., Auchmann, B., Badin, V., Baer, T., Baffari, D., Baglin, V., Bajko, M., Ball, A., Ballarino, A., Bally, S., Bampton, T., Banfi, D., Barlow, R., Barnes, M., Barranco, J., Barthelemy, L., Bartmann, W., Bartosik, H., Barzi, E., Battistin, M., Baudrenghien, P., Alonso, I. Bejar, Belomestnykh, S., Benoit, A., Ben-Zvi, I., Bertarelli, A., Bertolasi, S., Bertone, C., Bertran, B., Bestmann, P., Biancacci, N., Bignami, A., Bliss, N., Boccard, C., Body, Y., Borburgh, J., Bordini, B., Borralho, F., Bossert, R., Bottura, L., Boucherie, A., Bozzi, R., Bracco, C., Bravin, E., Bregliozzi, G., Brett, D., Broche, A., Brodzinski, K., Broggi, F., Bruce, R., Brugger, M., Brüning, O., Buffat, X., Burkhardt, H., Burnet, J., Burov, A., Burt, G., Cabezas, R., Cai, Y., Calaga, R., Calatroni, S., Capatina, O., Capelli, T., Cardon, P., Carlier, E., Carra, F., Carvalho, A., Carver, L.R., Caspers, F., Cattenoz, G., Cerutti, F., Chancé, A., Rodrigues, M. Chastre, Chemli, S., Cheng, D., Chiggiato, P., Chlachidze, G., Claudet, S., Coello De Portugal, JM., Collazos, C., Corso, J., Costa Machado, S., Costa Pinto, P., Coulinge, E., Crouch, M., Cruikshank, P., Cruz Alaniz, E., Czech, M., Dahlerup-Petersen, K., Dalena, B., Daniluk, G., Danzeca, S., Day, H., De Carvalho Saraiva, J., De Luca, D., De Maria, R., De Rijk, G., De Silva, S., Dehning, B., Delayen, J., Deliege, Q., Delille, B., Delsaux, F., Denz, R., Devred, A., Dexter, A., Di Girolamo, B., Dietderich, D., Dilly, J.W., Doherty, A., Dos Santos, N., Drago, A., D.Drskovic, Ramos, D. Duarte, Ducimetière, L., Efthymiopoulos, I., Einsweiler, K., Esposito, L., Esteban Muller, J., Evrard, S., Fabbricatore, P., Farinon, S., Fartoukh, S., Faus-Golfe, A., Favre, G., Felice, H., Feral, B., Ferlin, G., Ferracin, P., Ferrari, A., Ferreira, L., Fessia, P., Ficcadenti, L., Fiotakis, S., Fiscarelli, L., Fitterer, M., Fleiter, J., Foffano, G., Fol, E., Folch, R., Foraz, K., Foussat, A., Frankl, M., Frasciello, O., Fraser, M., Menendez, P. Freijedo, Fuchs, J-F., Furuseth, S., Gaddi, A., Gallilee, M., Gallo, A., Alia, R. Garcia, Gavela, H. Garcia, Matos, J. Garcia, Garcia Morales, H., Valdivieso, A. Garcia-Tabares, Garino, C., Garion, C., Gascon, J., Gasnier, Ch., Gentini, L., Gentsos, C., Ghosh, A., Giacomel, L., Hernandez, K. Gibran, Gibson, S., Ginburg, C., Giordano, F., Giovannozzi, M., Goddard, B., Gomes, P., Gonzalez De La Aleja Cabana, M., Goudket, P., Gousiou, E., Gradassi, P., Costa, A. Granadeiro, Grand-Clément, L., Grillot, S., Guillaume, JC., Guinchard, M., Hagen, P., Hakulinen, T., Hall, B., Hansen, J., Heredia Garcia, N., Herr, W., Herty, A., Hill, C., Hofer, M., Höfle, W., Holzer, B., Hopkins, S., Hrivnak, J., Iadarola, G., Infantino, A., Bermudez, S. Izquierdo, Jakobsen, S., Jebramcik, M.A., Jenninger, B., Jensen, E., Jones, M., Jones, R., Jones, T., Jowett, J., Juchno, M., Julie, C., Junginger, T., Kain, V., Kaltchev, D., Karastathis, N., Kardasopoulos, P., Karppinen, M., Keintzel, J., Kersevan, R., Killing, F., Kirby, G., Korostelev, M., Kos, N., Kostoglou, S., Kozsar, I., Krasnov, A., Krave, S., Krzempek, L., Kuder, N., Kurtulus, A., Kwee-Hinzmann, R., Lackner, F., Lamont, M., Lamure, A.L., m, L. Lari, Lazzaroni, M., Le Garrec, M., Lechner, A., Lefevre, T., Leuxe, R., Li, K., Li, Z., Lindner, R., Lindstrom, B., Lingwood, C., Löffler, C., Lopez, C., Lopez-Hernandez, LA., Losito, R., Maciariello, F., Macintosh, P., Maclean, E.H., Macpherson, A., Maesen, P., Magnier, C., Durand, H. Mainaud, Malina, L., Manfredi, M., Marcellini, F., Marchevsky, M., Maridor, S., Marinaro, G., Marinov, K., Markiewicz, T., Marsili, A., Martinez Urioz, P., Martino, M., Masi, A., Mastoridis, T., Mattelaer, P., May, A., Mazet, J., Mcilwraith, S., McIntosh, E., Medina Medrano, L., Mejica Rodriguez, A., Mendes, M., Menendez, P., Mensi, M., Mereghetti, A., Mergelkuhl, D., Mertens, T., Mether, L., Métral, E., Migliorati, M., Milanese, A., Minginette, P., Missiaen, D., Mitsuhashi, T., Modena, M., Mokhov, N., Molson, J., Monneret, E., Montesinos, E., Moron-Ballester, R., Morrone, M., Mostacci, A., Mounet, N., Moyret, P., Muffat, P., Muratori, B., Muttoni, Y., Nakamoto, T., Navarro-Tapia, M., Neupert, H., Nevay, L., Nicol, T., Nilsson, E., Ninin, P., Nobrega, A., Noels, C., Nolan, E., Nosochkov, Y., Nuiry, FX., Oberli, L., Ogitsu, T., Ohmi, K., Olave R., Oliveira, J., Orlandi, Ph., Ortega, P., Osborne, J., Otto, T., Palumbo, L., Papadopoulou, S., Papaphilippou, Y., Paraschou, K., Parente, C., Paret, S., Park, H., Parma, V., Pasquino, Ch., Patapenka, A., Patnaik, L., Pattalwar, S., Payet, J., Pechaud, G., Pellegrini, D., Pepinster, P., Perez, J., Espinos, J. Perez, Marcone, A. Perillo, Perin, A., Perini, P., Persson, T.H.B., Peterson, T., Pieloni, T., Pigny, G., Pinheiro de Sousa, J.P., Pirotte, O., Plassard, F., Pojer, M., Pontercorvo, L., Poyet, A., Prelipcean, D., Prin, H., Principe, R., Pugnat, T., Qiang, J., Quaranta, E., Rafique, H., Rakhno, I., Duarte, D. Ramos, Ratti, A., Ravaioli, E., Raymond, M., Redaelli, S., Renaglia, T., Ricci, D., Riddone, G., Rifflet, J., Rigutto, E., Rijoff, T., Rinaldesi, R., Riu Martinez, O., Rivkin, L., Rodriguez Mateos, F., Roesler, S., Romera Ramirez, I., Rossi, A., Rossi, L., Rude, V., Rumolo, G., Rutkovksi, J., Sabate Gilarte, M., Sabbi, G., Sahner, T., Salemme, R., Salvant, B., Galan, F. Sanchez, Santamaria Garcia, A., Santillana, I., Santini, C., Santos, O., Diaz, P. Santos, Sasaki, K., Savary, F., Sbrizzi, A., Schaumann, M., Scheuerlein, C., Schmalzle, J., Schmickler, H., Schmidt, R., Schoerling, D., Segreti, M., Serluca, M., Serrano, J., Sestak, J., Shaposhnikova, E., Shatilov, D., Siemko, A., Sisti, M., Sitko, M., Skarita, J., Skordis, E., Skoufaris, K., Skripka, G., Smekens, D., Sobiech, Z., Sosin, M., Sorbio, M., Soubelet, F., Spataro, B., Spiezia, G., Stancari, G., Staterao, M., Steckert, J., Steele, G., Sterbini, G., Struik, M., Sugano, M., Szeberenyi, A., Taborelli, M., Tambasco, C., Rego, R. Tavares, Tavian, L., Teissandier, B., Templeton, N., Therasse, M., Thiesen, H., Thomas, E., Toader, A., Todesco, E., Tomás, R., Toral, F., Torres-Sanchez, R., Trad, G., Triantafyllou, N., Tropin, I., Tsinganis, A., Tuckamantel, J., Uythoven, J., Valishev, A., Van Der Veken, F., Van Weelderen, R., Vande Craen, A., Vazquez De Prada, B., Velotti, F., Verdu Andres, S., Verweij, A., Shetty, N. Vittal, Vlachoudis, V., Volpini, G., Wagner, U., Wanderer, P., Wang, M., Wang, X., Wanzenberg, R., Wegscheider, A., Weisz, S., Welsch, C., Wendt, M., Wenninger, J., Weterings, W., White, S., Widuch, K., Will, A., Willering, G., Wollmann, D., Wolski, A., Wozniak, J., Wu, Q., Xiao, B., Xiao, L., Xu, Q., Yakovlev, Y., Yammine, S., Yang, Y., Yu, M., Zacharov, I., Zagorodnova, O., Zannini, C., Zanoni, C., Zerlauth, M., Zimmermann, F., Zlobin, A., Zobov, M., and Zurbano Fernandez, I.
- Subjects
Accelerators and Storage Rings - Abstract
The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up anew energy frontier for exploration in 2010, it has gathered a global user community of about 9000 scientists working in fundamental particle physics and the physics of hadronic matter at extreme temperature and density. To sustain and extend its discovery potential, the LHC will need a major upgrade in the 2020s. This will increase its instantaneous luminosity (rate of collisions) by a factor of five beyond the original design valueand the integrated luminosity (totalnumber of collisions) by a factor ten. The LHC is already a highly complexand exquisitely optimised machine so this upgrade must be carefully conceived and will require new infrastructures(underground and on surface)and over a decade to implement. The new configuration, known as High Luminosity LHC (HL-LHC), relies on a number of key innovations that push accelerator technology beyond its present limits. Among these are cutting-edge 11–12Tesla superconducting magnets, compact superconducting cavities for beam rotation with ultra-precise phase control, new technology and physical processes for beam collimation and 100 metre-long high-power superconducting links with negligible energy dissipation, all of which required several years of dedicated R&D; effort on a global international level. The present document describes the technologies and components that will be used to realise the projectand is intended to serve as the basis for the detailed engineering design of the HL-LHC.
- Published
- 2020
23. Binomio madre niño: Un modelo de capacitación del equipo de salud en atención primaria
- Author
-
N. Cáceres, I. Attme, J. Brunetto, H. Lucchini, M. Miravet, G. Martinez, C. Andreone, A. Bressan, E. Perez, and G. Fessia
- Subjects
binomio madre hijo ,Capacitación del equipo de salud ,atención primaria ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
El 60% de las muerte infantiles se relacionan con la salud materna por eso la importancia de trabajar el binomio madreniño. El bajo peso al nacer está relacionado con escasos controles prenatales, espacios intergenéticos cortos, enfermedades maternas como hipertensión, alteraciones de la nutrición y escasa educación. El objetivo del presente trabajo es presentar un modelo de enseñanza de la pediatría en el post grado que integre el binomio madre-niño b) Abordar la capacitación y actualización interdisciplinaria del equipo de salud de APS a traves de una modalidad a distancia c)Favorecer la articulación docente asistencial. (Universidad, Provincia, Municipio). La modalidad a distancia brinda oportunidad a los profesionales a actualizarse sin dejar su medio social y laboral. El material de estudio, módulos, se envía por correo electrónico o en soporte digital (CD). Las actividades que se proponen son la mayoría de resolución colectiva, lo que permite la integración de las diferentes disciplinas del equipo de salud. Se implementó la figura del tutor y dos evaluaciones presenciales, además de una encuesta de satisfacción. En los tres cursos realizados se inscribieron 1026 participantes y finalizaron 752, siendo el 52% médicos, 15.8% enfermeras, auxiliares 8.7%, otras profesiones (23%). El curso tenía estrecha relación con su desempeño profesional para más del 70%, el contenido era comprensible y las consignas claras en el 90%. Conclusiones: La mayoría de los participantes (90.7%) manifestaron satisfacción, facilitó la formación de profesionales disminuyendo costos y adecuando el tiempo de estudio. Las dificultades encontradas: Desconocimiento del uso del ordenador, lugares del interior que no cuentan con internet. Dificultad para tener una visión integral del binomio madre niño. El aprendizaje no fue sólo para los participantes sino que el equipo docente universitario se vio enriquecido por el aporte de las experiencias locales y el conocimiento de las Instituciones del interior provincial.
- Published
- 2014
- Full Text
- View/download PDF
24. High-Luminosity Large Hadron Collider (HL-LHC). Technical Design Report V. 0.1
- Author
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Apollinari, G., primary, Béjar Alonso, I., additional, Brüning, O., additional, Fessia, P., additional, Lamont, M., additional, Rossi, L., additional, and Tavian, L., additional
- Published
- 2017
- Full Text
- View/download PDF
25. Integration, (de-)installation and alignment
- Author
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Fessia, P. and Mainaud Durand, H.
- Abstract
The HL-LHC will require modifying the machine and infrastructure installations of the LHC in several points along the Accelerator Ring, in particular: P1, P2, P4, P5, P6, P7 and P8. Part of the modifications and improvement in P2, P4, P7 and P8 shall be completed during Long Shutdown 2 (LS2) and be operational for LHC Run 3, while the largest part of the interventions will take place in Long Shutdown 3 (LS3) and they will affect primarily P1, P4, P5, P6 and P7. The activities required point by point will be therefore listed and analysed here below. The Project evolution has allowed and obliged to revise and refine the previous integration plan. Here below the main changes are singled out - Point 1 and Point 5 o The LHC Machine layout has been made compliant with the optics version 1.4 that integrates the deployment of the Full Remote Alignment and the results of the matching section optimization. The present layout is based on updated and refined equipment designs considering the progress of the engineering design of each system. This includes in particular: magnet cryostats, DFX, Crab Cavity cryo-modules, collimators that have all seen important evolution in their design. o The system optimization implied a revision of the localization of some of the equipment, i.e. the power converters feeding the circuits of the Higher Order correctors magnets that are in the Corrector Package have been moved from the new HL-LHC underground infrastructures to the service alcoves of the LHC tunnel. o Following the refinement of the services design and the machine equipment requirements, the full integration in the new HL-LHC underground infrastructures has been reviewed. The integration activity in this area is strictly linked to the finalization of the construction design of the caverns that are being built during LS2. o In a similar way, and for the same reasons, the integration of the new surface buildings and the connecting technical galleries has been revisited in detail, leading to an optimization in the gallery topology and refinement in the building design. Point 4: o The cryogenic system upgrade at Point 4 has been reviewed. In order to support the operation in Sector 3-4 (that is fed by a refrigerator unit inherited from the LEP machine) the refrigerator will be upgraded, but without impacting the cryogenic distribution network. The previously foreseen mobile refrigerator that was foreseen to cool the LHC RF accelerating cavities for testing and conditioning purposes has been abandoned. o The conceptual design of the Hollow-Electron Lenses has been integrated in the tunnel together with their services validating the design choices. Point 6 o The previous foreseen upgrade of the Q5 units has been abandoned.The presently installed units will be operated in the HL-LHC configuration as they currently are in the existing LHC configuration. o The horizontal beam dump dilution kicker system is planned to be upgraded with the installation of one additional kicker module for each beam. o The Beam Dump block will be upgraded already in LS2 with new upstream windows. Additionally, the dump block will be mechanically separated from the beam dump line and its support system modified to allow for an improved absorption of the shock waves during beam impact. o The entire Beam Dump block is planned to be replaced during LS3 in preparation for the HL-LHC exploitation., CERN Yellow Reports: Monographs, Vol. 10 (2020): High-Luminosity Large Hadron Collider (HL-LHC): Technical design report
- Published
- 2020
- Full Text
- View/download PDF
26. The High Luminosity LHC interaction region magnets towards series production
- Author
-
Todesco, E, primary, Bajas, H, additional, Bajko, M, additional, Ballarino, A, additional, Bermudez, S Izquierdo, additional, Bordini, B, additional, Bottura, L, additional, De Rijk, G, additional, Devred, A, additional, Duarte Ramos, D, additional, Duda, M, additional, Ferracin, P, additional, Fessia, P, additional, Fleiter, J, additional, Fiscarelli, L, additional, Foussat, A, additional, Kirby, G, additional, Mangiarotti, F, additional, Mentink, M, additional, Milanese, A, additional, Musso, A, additional, Parma, V, additional, Perez, J C, additional, Prin, H, additional, Rossi, L, additional, Russenschuck, S, additional, Willering, G, additional, Enomoto, S, additional, Nakamoto, T, additional, Kimura, N, additional, Ogitsu, T, additional, Sugano, M, additional, Suzuki, K, additional, Wei, S, additional, Gong, L, additional, Wang, J, additional, Peng, Q, additional, Xu, Q, additional, Bersani, A, additional, Caiffi, B, additional, Fabbricatore, P, additional, Farinon, S, additional, Pampaloni, A, additional, Mariotto, S, additional, Prioli, M, additional, Sorbi, M, additional, Statera, M, additional, Garcia Matos, J, additional, Toral, F, additional, Ambrosio, G, additional, Apollinari, G, additional, Baldini, M, additional, Carcagno, R, additional, Feher, S, additional, Stoynev, S, additional, Chlachidze, G, additional, Marinozzi, V, additional, Lombardo, V, additional, Nobrega, F, additional, Strauss, T, additional, Yu, M, additional, Anerella, M, additional, Amm, K, additional, Joshi, P, additional, Muratore, J, additional, Schmalzle, J, additional, Wanderer, P, additional, Chen, D, additional, Gourlay, S, additional, Pong, I, additional, Prestemon, S, additional, Sabbi, G L, additional, Cooley, L, additional, and Felice, H, additional
- Published
- 2021
- Full Text
- View/download PDF
27. Mechanical design of the SMC (short model coil) dipole magnet
- Author
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Regis, F., Manil, P., Fessia, P., Bajko, M., and de Rijk, G.
- Subjects
Magnetic dipoles -- Analysis ,Magnetic fields -- Measurement ,Niobium -- Magnetic properties ,Niobium -- Electric properties ,Superconducting magnets -- Models ,Tin alloys -- Magnetic properties ,Tin alloys -- Electric properties ,Business ,Electronics ,Electronics and electrical industries - Published
- 2010
28. Magnetic design and code benchmarking of the SMC (short model coil) dipole magnet
- Author
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Manil, P., Regis, F., Rochford, J., Fessia, P., Canfer, S., Baynham, E., Nunio, F., de Rijk, G., and Vedrine, P.
- Subjects
Magnetic dipoles -- Analysis ,Lorentz transformations -- Usage ,Niobium -- Magnetic properties ,Niobium -- Electric properties ,Particle accelerators -- Design and construction ,Superconducting magnets -- Design and construction ,Tin alloys -- Magnetic properties ,Tin alloys -- Electric properties ,Business ,Electronics ,Electronics and electrical industries - Published
- 2010
29. Heat transfer in an enhanced cable insulation scheme for the superconducting magnets of the LHC luminosity upgrade
- Author
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Granieri, P.P., Fessia, P., Richter, D., and Tommasini, D.
- Subjects
Colliders (Nuclear physics) -- Design and construction ,Niobium -- Magnetic properties ,Niobium -- Electric properties ,Niobium -- Thermal properties ,Superconducting magnets -- Design and construction ,Technical institutes -- Management ,Titanium alloys -- Magnetic properties ,Titanium alloys -- Electric properties ,Titanium alloys -- Thermal properties ,Company business management ,Business ,Electronics ,Electronics and electrical industries ,European Organization for Nuclear Research. Large Hadron Collider -- Management - Published
- 2010
30. A 120 mm bore quadrupole for the phase I LHC upgrade
- Author
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Fessia, P., Granieri, P., Borgnolutti, F., Regis, F., Richter, D., and Todesco, E.
- Subjects
Magnetic dipoles -- Analysis ,Niobium -- Electric properties ,Niobium -- Magnetic properties ,Superconducting magnets -- Design and construction ,Technical institutes -- Management ,Titanium alloys -- Electric properties ,Titanium alloys -- Magnetic properties ,Colliders (Nuclear physics) -- Innovations ,Company business management ,Business ,Electronics ,Electronics and electrical industries ,European Organization for Nuclear Research. Large Hadron Collider -- Management - Published
- 2010
31. Electrical and mechanical performance of an enhanced cable insulation scheme for superconducting magnets
- Author
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Fessia, P., Granieri, P.P., Luzieux, S., Tommasini, D., Gerardin, A., Guinchard, M., Regis, F., Sgobba, S., and Zaghloul, A.
- Subjects
Niobium -- Magnetic properties ,Niobium -- Electric properties ,Niobium -- Mechanical properties ,Electric currents, Vagrant -- Measurement ,Superconducting magnets -- Design and construction ,Titanium -- Magnetic properties ,Titanium -- Electric properties ,Titanium -- Mechanical properties ,Business ,Electronics ,Electronics and electrical industries - Published
- 2010
32. Conceptual design of a new sample holder for the FRESCA cable test station
- Author
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Bordini, B., Regis, F., Crettiez, O., Fessia, P., Guinchard, M., Perez, J.C., and Sexton, I.
- Subjects
Niobium -- Magnetic properties ,Niobium -- Electric properties ,Niobium -- Mechanical properties ,Superconducting magnets -- Design and construction ,Tin alloys -- Magnetic properties ,Tin alloys -- Electric properties ,Tin alloys -- Mechanical properties ,Stress analysis (Engineering) ,Business ,Electronics ,Electronics and electrical industries - Published
- 2010
33. Parametric analysis of forces and stresses in superconducting dipoles
- Author
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Fessia, P., Regis, F., and Todesco, E.
- Subjects
Niobium alloys -- Electric properties ,Niobium alloys -- Magnetic properties ,Superconducting magnets -- Mechanical properties ,Superconducting magnets -- Design and construction ,Tin alloys -- Electric properties ,Tin alloys -- Magnetic properties ,Business ,Electronics ,Electronics and electrical industries - Published
- 2009
34. Description of the main features of the series production of the LHC main dipole magnets
- Author
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Savary, F., Bajko, M., Chevret, P., de Rijk, G., Fessia, P., Lienard, P., Miles, J., Modena, M., Rossi, L., Tommasini, D., Vlogaert, J., Bresson, D., Grunblatt, G., Decoene, J.-F., Bressani, F., Drago, G., Gagliardi, P., Eysselein, F., Gaertner, W., and Lublow, P.
- Subjects
Colliders (Nuclear physics) -- Design and construction ,Dipole moments -- Analysis ,Business ,Electronics ,Electronics and electrical industries ,European Organization for Nuclear Research -- Buildings and facilities - Abstract
The organization implemented at CERN and the milestones fixed to fulfill the technical requirements and to respect the master schedule of the machine installation are described. The production of the main dipole cold masses for LHC has necessitated the participation of a great number of people at CERN.
- Published
- 2008
35. The interconnections of the LHC cryomagnets at CERN: strategy applied and first results of the industrialization process
- Author
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Tock, J.Ph., Bertinelli, F., Fessia, P., Jacquemod, A., Musso, A., and Poncet, A.
- Subjects
Superconducting magnets -- Design and construction ,Colliders (Nuclear physics) -- Design and construction ,Particle accelerators -- Design and construction ,Business ,Electronics ,Electronics and electrical industries ,European Organization for Nuclear Research -- Buildings and facilities - Abstract
The start-up phase and difficulties encountered during the implementation of the specific technologies and tooling developed and qualified by CERN are described. The flexible strategy tailored to the peculiarities of each zone while assembling the LHC cryomagnets is shown to be very effective.
- Published
- 2008
36. Parametric analysis of forces and stresses in superconducting quadrupole sector windings
- Author
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Fessia, P., Regis, F., and Todesco, E.
- Subjects
Superconductors -- Electric properties ,Superconductors -- Magnetic properties ,Parameter estimation -- Analysis ,Niobium -- Electric properties ,Business ,Electronics ,Electronics and electrical industries - Abstract
A simplified model of superconducting quadrupole with uniform current density is analyzed. Results suggest that the stress is below 100 MPa for apertures radii smaller than 60 mm in case of Nb-Ti.
- Published
- 2007
37. Comparison of 2-D magnetic designs of selected coil configurations for the Next European Dipole (NED)
- Author
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Toral, F., Devred, A., Felice, H., Fessia, P., Loveridge, P., Regis, F., Rochford, J., Sanz, S., Schwerg, N., Vedrine, P., and Vollinger, C.
- Subjects
Electromagnetism -- Analysis ,Electromagnetic fields -- Measurement ,Superconducting magnets -- Usage ,Business ,Electronics ,Electronics and electrical industries - Abstract
The 2-D magnetic field calculations of selected coil configurations for the Next European Dipole (NED) are presented. Results suggest that the conventional layered cos-theta design is appropriate for the 88 mm aperture, whereas the slotted cos-theta design is more appropriate for large apertures.
- Published
- 2007
38. Industrial learning curves: series production of the LHC main superconducting dipoles
- Author
-
Fessia, P., Regis, F., and Rossi, L.
- Subjects
Particle accelerators -- Usage ,Production management -- Technology application ,Technology application ,Business ,Electronics ,Electronics and electrical industries - Abstract
The application of learning curve analysis to 80 percent of the production of the main dipoles for Large Hadron Collider (LHC) is discussed. Findings reveal higher learning percentage, which indicates a lower learning speed.
- Published
- 2007
39. Status report on the superconducting dipole magnet production for the LHC
- Author
-
Bajko, M., Bertinelli, F., Bellesia, B., Fessia, P., Hagen, P., Koutchouk, J.P., Miles, J., Modena, M., Pojer, M., Rossi, L., de Rijk, G., Savary, F., Todesco, E., Tommasini, D., Vlogaert, J., Vollinger, C., and Wildner, E.
- Subjects
Superconductivity -- Measurement ,Magnetic dipoles -- Analysis ,Particle accelerators -- Usage ,Business ,Electronics ,Electronics and electrical industries - Abstract
The status of the production and performance of the superconducting dipole magnet for the Large Hadron Collider (LHC) is presented. The main dipole magnets are designed for a nominal operational current of 11850 A that generate a central dipole field of 8.33 T.
- Published
- 2007
40. Development and manufacture of the coil end spacers of the LHC pre-series dipoles
- Author
-
Farina, E., Fessia, P., Perini, D., Schiappapietra, A., and Senee, L.
- Subjects
Superconducting magnets -- Research ,Electrical equipment and supplies industry -- Research ,Particle accelerators -- Research ,Nuclear industry -- Research ,Industrial equipment and supplies industry -- Research ,Electrical engineering ,Business ,Electronics ,Electronics and electrical industries ,European Organization for Nuclear Research -- Conferences, meetings and seminars - Abstract
Design and fabrication of the end spacers of the Large Hadron Collider (LHC) pre-series main dipole are discussed.
- Published
- 2002
41. First experience in the mass production of components for the LHC dipoles
- Author
-
Fessia, P., Lanza, C., and Verbeeck, T.
- Subjects
Particle accelerators -- Contracts ,Nuclear industry -- Contracts ,Industrial equipment and supplies industry -- Contracts ,Superconducting magnets -- Research ,Electrical equipment and supplies industry -- Research ,Electrical engineering ,Business ,Electronics ,Electronics and electrical industries ,European Organization for Nuclear Research -- Conferences, meetings and seminars - Abstract
Mass production of the main mechanical components for the Large Hadron Collider's (LHC) main dipoles is described and discussed. An overview of preliminary results is presented.
- Published
- 2002
42. A novel idea for coil collar structures in accelerator superconducting magnets
- Author
-
fessia, P. and Perini, D.
- Subjects
Superconducting magnets -- Research ,Electrical equipment and supplies industry -- Research ,Particle accelerators -- Research ,Nuclear industry -- Research ,Industrial equipment and supplies industry -- Research ,Electrical engineering ,Business ,Electronics ,Electronics and electrical industries ,European Organization for Nuclear Research -- Conferences, meetings and seminars - Abstract
Finite element computations indicate possible feasibility of mixed plastic-austenitic coil collars in accelerator superconducting magnets. Advantages would include lower weight of dipoles and significant cost reductions.
- Published
- 2002
43. FEM computations concerning the effect of friction in two LHC main dipole structures
- Author
-
Bajko, M., Fessia, P., and Perini, D.
- Subjects
Magnetic dipoles -- Research ,Superconductors -- Research ,Business ,Electronics ,Electronics and electrical industries - Abstract
Friction effects in two LHC main dipole structures were studied using FEM computations.
- Published
- 2000
44. Status of the short dipole model program for the LHC
- Author
-
Artoos, K., Bottura, L., Fessia, P., Perini, D., Sanfilippo, S., Siegel, N., Siemko, A., Tommasini, D., Vanenkov, I., Walckiers, L., and Wyss, C.
- Subjects
Dipole moments -- Models ,Particles (Nuclear physics) -- Research ,Superconductors -- Research ,Business ,Electronics ,Electronics and electrical industries - Abstract
The short dipole model program for the Large Hadron Collider is examined in terms of results during cold tests and the final stages of the model program.
- Published
- 2000
45. Design, manufacturing status, first results of the LHC main dipole final prototypes and steps towards series manufacture
- Author
-
Artoos, K., Bottura, L., Fessia, P., Bajko, M., Modena, M., Pagano, O., Perini, D., Savary, F., Scandale, w., Siemko, A., Spigo, G., todesco, E., Vlogaert, J., and Wyss, C.
- Subjects
Magnetic dipoles -- Research ,Superconducting magnets -- Research ,Business ,Electronics ,Electronics and electrical industries - Abstract
The program of six LHC superconducting main dipole final prototypes is examined with regard to design, manufacturing status and first results.
- Published
- 2000
46. Statistical studies of the robustness of the LHC main dipole mechanical structure
- Author
-
Bajko, M., Fessia, P., and Perini, D.
- Subjects
Magnetic dipoles -- Research ,Superconductors -- Research ,Business ,Electronics ,Electronics and electrical industries - Abstract
Semi-statistical and full-statistical methods were used to study the effects of tolerance of the components on the structure of the Large Hadron Collider main dipole.
- Published
- 2000
47. Selection of the cross-section design for the LHC main dipole
- Author
-
Fessia, P., Perini, D., Russenshuck, S., Voellinger, Ch., Vuillermet, R., and Wyss, C.
- Subjects
Dipole moments -- Models ,Superconductors -- Models ,Business ,Electronics ,Electronics and electrical industries - Abstract
The cross section design for the Large Hadron Collider main dipole is investigated.
- Published
- 2000
48. High-Luminosity Large Hadron Collider (HL-LHC). Technical Design Report V. 0.1
- Author
-
Apollinari G., Béjar Alonso I., Brüning O., Fessia P., Lamont M., Rossi L., and Tavian L.
- Subjects
Physics::Instrumentation and Detectors ,Accelerators and Storage Rings - Abstract
The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a newenergy frontier for exploration in 2010, it has gathered a global user community of about 7,000 scientists work-ing in fundamental particle physics and the physics of hadronic matter at extreme temperature and density. Tosustain and extend its discovery potential, the LHC will need a major upgrade in the 2020s. This will increase itsinstantaneous luminosity (rate of collisions) by a factor of five beyond the original design value and the integratedluminosity (total collisions created) by a factor ten. The LHC is already a highly complex and exquisitely opti-mised machine so this upgrade must be carefully conceived and will require about ten years to implement. Thenew configuration, known as High Luminosity LHC (HL-LHC), relies on a number of key innovations that pushaccelerator technology beyond its present limits. Among these are cutting-edge 11-12 tesla superconducting mag-nets, compact superconducting cavities for beam rotation with ultra-precise phase control, new technology andphysical processes for beam collimation and 100 metre-long high-power superconducting links with negligibleenergy dissipation. The present document describes the technologies and components that will be used to realisethe project and is intended to serve as the basis for the detailed engineering design of HL-LHC.
- Published
- 2017
49. Training of the Main Dipoles Magnets in the Large Hadron Collider Toward 7 TeV Operation
- Author
-
Todesco, E., primary, Willering, G., additional, Auchmann, B., additional, Bajko, M., additional, Bottura, L., additional, Bruning, O., additional, De Rijk, G., additional, Fessia, P., additional, Hagen, P., additional, Mapelli, D., additional, Le Naour, S., additional, Modena, M., additional, Perez, J. C., additional, Rossi, L., additional, Schmidt, R., additional, Siemko, A., additional, Tock, J. Ph., additional, Tommasini, D., additional, and Verweij, A., additional
- Published
- 2018
- Full Text
- View/download PDF
50. Chapter 15: Integration and (De-)installation
- Author
-
Fessia, P. and Weisz, S.
- Subjects
Physics::Instrumentation and Detectors ,Accelerators and Storage Rings - Abstract
Chapter 15 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a new energy frontier for exploration in 2010, it has gathered a global user community of about 7,000 scientists working in fundamental particle physics and the physics of hadronic matter at extreme temperature and density. To sustain and extend its discovery potential, the LHC will need a major upgrade in the 2020s. This will increase its luminosity (rate of collisions) by a factor of five beyond the original design value and the integrated luminosity (total collisions created) by a factor ten. The LHC is already a highly complex and exquisitely optimised machine so this upgrade must be carefully conceived and will require about ten years to implement. The new configuration, known as High Luminosity LHC (HL-LHC), will rely on a number of key innovations that push accelerator technology beyond its present limits. Among these are cutting-edge 11-12 tesla superconducting magnets, compact superconducting cavities for beam rotation with ultra-precise phase control, new technology and physical processes for beam collimation and 300 metre-long high-power superconducting links with negligible energy dissipation. The present document describes the technologies and components that will be used to realise the project and is intended to serve as the basis for the detailed engineering design of HL-LHC.
- Published
- 2015
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