Results 11 to 20 of about 2,759 (211)

Overview of recent results from the ST40 compact high-field spherical tokamak

Nuclear Fusion
ST40 is a compact, high-field ( $B_{\mathrm{T0}}\unicode{x2A7D} 2.1\,\,\,\textrm{T}$ ) spherical tokamak (ST) with a mission to expand the physics and technology basis for the ST route to commercial fusion.
S.A.M. McNamara, A. Alieva, M.S. Anastopoulos Tzanis, O. Asunta, J. Bland, H. Bohlin, P.F. Buxton, C. Colgan, A. Dnestrovskii, E. du Toit, M. Fontana, M. Gemmell, M.P. Gryaznevich, J. Hakosalo, M.R. Hardman, D. Harryman, D. Hoffman, M. Iliasova, S. Janhunen, F. Janky, J.B. Lister, H.F. Lowe, E. Maartensson, C. Marsden, S.Y. Medvedev, S.R. Mirfayzi, M. Moscheni, G. Naylor, V. Nemytov, J. Njau, T. O’Gorman, D. Osin, T. Pyragius, A. Rengle, M. Romanelli, C. Romero, M. Sertoli, V. Shevchenko, J. Sinha, A. Sladkomedova, S. Sridhar, J. Stirling, Y. Takase, P.R. Thomas, J. Varje, E. Vekshina, B. Vincent, H.V. Willett, J. Wood, E. Wooldridge, D. Zakhar, X. Zhang, D. Battaglia, N. Bertelli, P.J. Bonofiglo, L.F. Delgado-Aparicio, V.N. Duarte, N.N. Gorelenkov, M. de Haas, S.M. Kaye, R. Maingi, D. Mueller, M. Ono, M. Podesta, Y. Ren, S. Trieu, E. Delabie, T.K. Gray, B. Lomanowski, E.A. Unterberg, O. Marchuk, the ST40 Team   +71 more
doaj   +2 more sources

Interplay between beam-driven chirping modes and plasma confinement transitions in spherical tokamak ST40

Nuclear Fusion, 2022
Experiments on the high field spherical tokamak ST40 have led to the recent observation of interplay between beam-driven modes of sweeping frequency (chirping modes) and transitions to the enhanced global confinement regime (H-mode) and back to the low ...
J. Bland, J. Varje, N.N. Gorelenkov, M.P. Gryaznevich, S.E. Sharapov, J. Wood, Team The ST40   +6 more
doaj   +2 more sources

Accurate extraction of electrical parameters in three-diode photovoltaic systems through the enhanced mother tree methodology: A novel approach for parameter estimation. [PDF]

PLoS ONE
Accurately simulating photovoltaic (PV) modules requires precise parameter extraction, a complex task due to the nonlinear nature of these systems. This study introduces the Mother Tree Optimization with Climate Change (MTO-CL) algorithm to address this ...
Mouncef El Marghichi, Abdelilah Hilali, Abdelkhalek Chellakhi, Mohamed Makhad, Azeddine Loulijat, Najib El Ouanjli, Abdelhak Essounaini, Vikash Kumar Saini, Ameena Saad Al-Sumaiti   +8 more
doaj   +2 more sources

Experimental observations of bifurcated power decay lengths in the near Scrape-Off Layer of ST40 High Field Spherical Tokamak

Nuclear Materials and Energy
The scrape-off layer parallel heat flux decay lengths measured at ST40, a high field, low aspect ratio spherical tokamak, have been observed to bifurcate into two groups.
Chris Marsden, Marco Sertoli, Xin Zhang
exaly   +3 more sources

RIME optimization with dynamic multi-dimensional random mechanism and Nelder–Mead simplex for photovoltaic parameter estimation [PDF]

Scientific Reports
Solar photovoltaic technology is efficient and clean, but extracting photovoltaic cell parameters is challenging due to various influencing factors. The rime optimization algorithm (RIME) is a recently proposed metaheuristic algorithm (MAs).
Yuanping Zheng, Fangjun Kuang, Ali Asghar Heidari, Lipei Yuan, Siyang Zhang, Huiling Chen   +5 more
doaj   +2 more sources

Modulation of gene expression in cholesterol-lowering effect of electroacupuncture at Fenglong acupoint (ST40): A cDNA microarray study

International Journal of Molecular Medicine, 2007
The aim of this study was to demonstrate the cholesterol-lowering effect of electroacupuncture (EA) at the acupoint of Fenglong (ST40) in mice and to investigate its molecular mechanism by using genome-wide gene expression profile analysis. Mice with hypercholesterolemia induced by a high-cholesterol diet were randomly divided into EA at ST40 group (EG)
Min, Li, Yizheng, Zhang
exaly   +4 more sources

Electroencephalogram Analysis of Magnetic Stimulation at Different Acupoints

Frontiers in Neuroscience, 2022
Magnetic stimulation has some similarities with acupuncture, and it has broad application prospects because of its non-invasiveness and easy quantification.
Ning Yin, Ning Yin, Ao-Xiang Wang, Ao-Xiang Wang, Hai-Li Wang, Hai-Li Wang   +5 more
doaj   +1 more source

Simulating Daily Soil Temperature in Egypt Using a High-Resolution Regional Climate Model: Sensitivity to Soil Moisture and Temperature Initial Conditions

Engineering Proceedings, 2023
In this study, a high-resolution regional climate model (RegCM4) was used to forecast the daily soil temperature at a depth of 40 cm (hereafter ST40). The RegCM4 was downscaled by the Global Forecast System (GFS of one degree horizontal resolution) to 25
Samy Ashraf Anwar
doaj   +1 more source

H-mode dithering phase studies on ST40

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2023
The dithering H-mode phase, characterized by oscillations, is generally observed at input power values close to the L-H transition power threshold and low plasma collisionalities (low electron density and/or high plasma temperature). Measurements to characterize the dithering phase are presented for the low aspect ratio, high magnetic ...
Yasmin Andrew, James Bland, Peter Buxton, Alexei Dnestrovskij, Mikhail Gryaznevich, Eun-jin Kim, Michele Romanelli, Marco Sertoli, Paul Thomas, Jari Varje   +9 more
openaire   +2 more sources

Identification and characterisation of enteroaggregative Escherichia coli subtypes associated with human disease [PDF]

, 2020
Enteroaggregative E. coli (EAEC) are a major cause of diarrhoea worldwide. Due to their heterogeneity and carriage in healthy individuals, identification of diagnostic virulence markers for pathogenic strains has been difficult.
Brett, Bernard, Bundy, Leah, Chattaway, Marie A., Crossman, Lisa C., Ellis, Samuel J., Hölken, Johanna M., Kay, Gemma L., McGrath, Conor J., Schüller, Stephanie, Wain, John   +9 more
core   +1 more source