Results 61 to 70 of about 19,217,453 (333)

Analysis and expansion of the quasi-continuous exhaust (QCE) regime in ASDEX Upgrade

Nuclear Fusion, 2023
The quasi-continuous exhaust (QCE) regime, formerly known as either type-II ELM or small ELM regime is studied in ASDEX Upgrade. The regime is a natural type-I ELM-free H-mode.
M. Faitsch, T. Eich, G.F. Harrer, E. Wolfrum, D. Brida, P. David, M. Dunne, L. Gil, B. Labit, U. Stroth, the ASDEX Upgrade Team, the EUROfusion MST1 Team   +11 more
doaj   +1 more source

Validation of gyrokinetic modelling of light impurity transport including rotation in ASDEX Upgrade [PDF]

, 2013
Upgraded spectroscopic hardware and an improved impurity concentration calculation allow accurate determination of boron density in the ASDEX Upgrade tokamak.
Angioni, C., Camenen, Y., Casson, F. J., Dux, R., Fable, E., Fischer, R., Geiger, B., Manas, P., McDermott, R. M., Menchero, L., Tardini, G., team, ASDEX Upgrade   +11 more
core   +3 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Investigation of GAM zonal flows near the pedestal region of H-mode on EAST tokamak

Nuclear Fusion
Geodesic acoustic mode (GAM) is the finite frequency counterpart of zonal flow in toroidal plasmas, which could be excited by and regulate turbulence.
Xi Feng, AhDi Liu, Ge Zhuang, Chu Zhou, X.L. Zou, HaiQing Liu, Lei Ye, ZongLiang Dai, FeiFei Long, S.X. Wang, L. Wang, L.Q. Xu, H.L. Zhao, J. Zhang, X.M. Zhong, M.Y. Wang, S.F. Wang, L.T. Gao, W.X. Shi, S.C. Qiu, L.X. Li, Y.F. Feng, X.Y. Chen, Y.Y. Zhang, T. Lan, H. Li, W.Z. Mao, Z.X. Liu, W.X. Ding, J.L. Xie, W.D. Liu, Z.B. Shi   +31 more
doaj   +1 more source

Peripheral temperature gradient screening of high-Z impurities in optimised ‘hybrid’ scenario H-mode plasmas in JET-ILW

Nuclear Fusion, 2022
Screening of high-Z (W) impurities from the confined plasma by the temperature gradient at the plasma periphery of fusion-grade H-mode plasmas has been demonstrated in the JET-ILW (ITER-like wall) tokamak.
A.R. Field, F.J. Casson, D. Fajardo, C. Angioni, C.D. Challis, J. Hobirk, A. Kappatou, Hyun-Tae Kim, E. Lerche, A. Loarte, J. Mailloux, JET Contributors   +11 more
doaj   +1 more source

Status of the COMPASS tokamak and characterization of the first H-mode

, 2015
This paper summarizes the status of the COMPASS tokamak, its comprehensive diagnostic equipment and plasma scenarios as a baseline for the future studies. The former COMPASS-D tokamak was in operation at UKAEA Culham, UK in 1992–2002.
R. Pánek, J. Adamek, M. Aftanas, P. Bílková, P. Bohm, F. Brochard, P. Cahyna, J. Cavalier, R. Dejarnac, M. Dimitrova, O. Grover, J. Harrison, P. Háček, J. Havlicek, A. Havránek, J. Horáček, M. Hron, M. Imrisek, F. Janky, A. Kirk, M. Komm, K. Kovářík, J. Krbec, L. Kripner, T. Markovič, K. Mitošinková, J. Mlynar, D. Naydenkova, M. Peterka, J. Seidl, J. Stöckel, E. Štefániková, M. Tomes, J. Urban, P. Vondracek, M. Varavin, J. Varju, V. Weinzettl, J. Zajac   +38 more
semanticscholar   +1 more source

Experimental conditions to suppress edge localised modes by magnetic perturbations in the ASDEX Upgrade tokamak

, 2018
Access conditions for full suppression of Edge Localised Modes (ELMs) by Magnetic Perturbations (MP) in low density high confinement mode (H-mode) plasmas are studied in the ASDEX Upgrade tokamak.
Bobkov, V., Cavedon, M., Dunne, M., Kirk, A., McDermott, R. M., Meyer, H., Nazikian, R., Paz-Soldan, C., Ryan, D. A., Suttrop, W., Viezzer, E., Willensdorfer, M.   +11 more
core   +1 more source

Radial localization of edge modes in Alcator C-Mod pedestals using optical diagnostics [PDF]

, 2017
Dedicated experiments in ion cyclotron range heated enhanced D-alpha (EDA) H-mode and I-mode plasmas have been performed on Alcator C-Mod to identify the location of edge fluctuations inside the pedestal and to determine their plasma frame phase velocity.
B LaBombard, Burrell K H, C Theiler, Cao B, Churchill R M, Dominguez A, E Edlund, Greenwald M, Groebner R J, Hubbard A E, Hubbard A E, Hughes J W, Hughes J W, I Cziegler, Isler R C, J L Terry, J W Hughes, Lang P T, Lao L, Loarte A, Manz P, Marmar E S, R M Churchill, T Golfinopoulos, Theiler C, Theiler C, White A E, Whyte D G, Zweben S J   +28 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Efficient inter mode selection algorithm for H.264

Tongxin xuebao, 2006
Motion estimation was introduced by H. 264 video coding standard with multiple block sizes to achieve a con- siderably higher coding efficiency than other video coding algorithms.
LU Lu, ZHOU Wei
doaj   +2 more sources