Zobrazeno 1 - 10
of 998
pro vyhledávání: '"P, Hakola"'
Autor:
Pesonen, Julius, Hakala, Teemu, Karjalainen, Väinö, Koivumäki, Niko, Markelin, Lauri, Raita-Hakola, Anna-Maria, Suomalainen, Juha, Pölönen, Ilkka, Honkavaara, Eija
Early detection of wildfires is essential to prevent large-scale fires resulting in extensive environmental, structural, and societal damage. Uncrewed aerial vehicles (UAVs) can cover large remote areas effectively with quick deployment requiring min
Externí odkaz:
http://arxiv.org/abs/2408.10843
Autor:
Verhaegh, K., Harrison, J. R., Moulton, D., Lipschultz, B., Lonigro, N., Osborne, N., Ryan, P., Theiler, C., Wijkamp, T., Brida, D., Cowley, C., Derks, G., Doyle, R., Federici, F., Kool, B., Février, O., Hakola, A., Henderson, S., Reimerdes, H., Thornton, A. J., Vianello, N., Wischmeier, M., Xiang, L.
Exhausting power from the hot fusion core to the plasma-facing components is one of the biggest challenges in fusion energy. The MAST Upgrade tokamak uniquely integrates strong containment of neutrals within the exhaust area (divertor) with extreme d
Externí odkaz:
http://arxiv.org/abs/2311.08586
Autor:
Verhaegh, K., Harrison, J. R., Lipschultz, B., Lonigro, N., Kobussen, S., Moulton, D., Osborne, N., Ryan, P., Theiler, C., Wijkamp, T., Brida, D., Derks, G., Doyle, R., Federici, F., Hakola, A., Henderson, S., Kool, B., Newton, S., Osawa, R., Pope, X., Reimerdes, H., Vianello, N., Wischmeier, M.
This experimental study presents an in-depth investigation of the performance of the MAST-U Super-X divertor during NBI-heated operation (up to 2.5 MW) focussing on volumetric ion sources and sinks as well as power losses during detachment. The parti
Externí odkaz:
http://arxiv.org/abs/2311.08580
Autor:
A.-M. Raita-Hakola, I. Pölönen
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVIII-3-2024, Pp 445-452 (2024)
Wildfires have become increasingly prevalent worldwide due to climate change, posing significant threats to human lives, property, and natural ecosystems. The rapid progression of wildfires necessitates predictive computational models to assist firef
Externí odkaz:
https://doaj.org/article/0bf7f9f889af46dfa377e189451bf8c2
Autor:
Tomi Vuoriheimo, Antti Hakola, Jari Likonen, Karl Krieger, Martin Balden, Iva Bogdanović Radović, Georgios Provatas, Zdravko Siketić, Karla Ivanković Nizić, Marcin Rasinski, Sebastijan Brezinsek
Publikováno v:
Nuclear Materials and Energy, Vol 41, Iss , Pp 101766- (2024)
The effect of helium plasma operation on the erosion of plasma-facing components at the low-field side divertor of ASDEX Upgrade was investigated during the 2022 helium experimental campaign. A set of tungsten-covered graphite samples with small plat
Externí odkaz:
https://doaj.org/article/805dff84db6449a18d6196b2fe900d0d
Autor:
H. Hellén, R. Kouznetsov, K. Kraft, J. Seppälä, M. Vestenius, J.-P. Jalkanen, L. Laakso, H. Hakola
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 4717-4731 (2024)
The mixing ratios of highly volatile organic compounds (VOCs) were studied on Utö Island in the Baltic Sea. Measurements of non-methane hydrocarbons (NMHCs) and methanethiol (unexpectedly found during the experiment) were conducted using an in situ
Externí odkaz:
https://doaj.org/article/b566f17352c54f1f983cc640be5b2098
Autor:
Indrek Jõgi, Peeter Paris, Jasper Ristkok, Alicia Marin Roldán, Pavitra Ganapati Bhat, Pavel Veis, Juuso Karhunen, Salvatore Almaviva, Wojciech Gromelski, Paul Dinca, Corneliu Porosnicu, Iva Bogdanović Radović, Zdravko Siketić, Paweł Gąsior, Jari Likonen, Antti Hakola
Publikováno v:
Nuclear Materials and Energy, Vol 39, Iss , Pp 101677- (2024)
Laser Induced Breakdown Spectroscopy (LIBS) method is considered to be a promising tool for analyzing the retention of hydrogen isotopes (D and T) and helium (He) on the first walls and divertor regions of future fusion reactors. Helium will be produ
Externí odkaz:
https://doaj.org/article/8d77130dcfca46fb978429f46370ea63
Autor:
Pardanaud, C, Kumar, M, Roubin, P, Martin, C, Ferro, Y, Denis, J, Widdowson, A, Douai, D, Baldwin, M, Založnik, A, Lungu, C, Porosnicu, C, Dinca, P, Dittmar, T, Hakola, A
Publikováno v:
Physica Scripta, IOP Publishing, 2021, 96 (12), pp.124031
We report on the detection by means of Raman spectroscopy of amorphous beryllium deuteride, BeD 2 , in magnetron sputtered deposits synthesized in two different laboratories and containing about 20 at.% of deuterium. In contrast, this signature has n
Externí odkaz:
http://arxiv.org/abs/2109.15077
Autor:
A.-M. Raita-Hakola, S. Rahkonen, J. Suomalainen, L. Markelin, R. Oliveira, T. Hakala, N. Koivumäki, E. Honkavaara, I. Pölönen
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVIII-1-W2-2023, Pp 1771-1778 (2023)
Wildfires present severe threats to various aspects of ecosystems, human settlements, and the environment. Early detection plays a critical role in minimizing the destructive consequences of wildfires. This study introduces an innovative approach for
Externí odkaz:
https://doaj.org/article/931aa5d2308446f49f6e07c10442d0bc
Autor:
T. Wauters, R. Bisson, E. Delabie, D. Douai, A. Gallo, J. Gaspar, I. Jepu, Y. Kovtun, E. Pawelec, D. Matveev, A. Meigs, S. Brezinsek, I. Coffey, T. Dittmar, N. Fedorczak, J. Gunn, A. Hakola, P. Jacquet, K. Kirov, E. Lerche, J. Likonen, E. Litherland-Smith, T. Loarer, P. Lomas, C. Lowry, M. Maslov, I. Monakhov, J. Morales, C. Noble, R. Nouailletas, B. Pégourié, C. Perez von Thun, R.A. Pitts, C. Reux, F. Rimini, H. Sheikh, S. Silburn, H. Sun, D. Taylor, E. Tsitrone, S. Vartanian, E. Wang, A. Widdowson
Publikováno v:
Nuclear Materials and Energy, Vol 38, Iss , Pp 101587- (2024)
The pre-fusion power operation (PFPO) phase of ITER, as described in the ITER research plan with Staged Approach,22 ITER Organization, “ITER Research Plan within the Staged Approach,” ITR-18–003, Aug. 2018. includes both hydrogen (H) and helium
Externí odkaz:
https://doaj.org/article/6152aca246de47dcbefb89a44096943a