Results 21 to 30 of about 2,229 (260)

Influence of triangularity on the plasma response to resonant magnetic perturbations

Nuclear Fusion, 2022
Abstract The effect of the axisymmetric plasma shape on the non-axisymmetric plasma response to resonant magnetic perturbations is investigated in experiment and modeling for the DIII-D, EAST and ASDEX Upgrade tokamaks. Systematically modeling the effect of the triangularity, whilst keeping other equilibrium quantities largely unchanged,
S. Gu, C. Paz-Soldan, Y.Q. Liu, Y. Sun, B.C. Lyons, D.A. Ryan, D. Weisberg, N. Leuthold, M. Willensdorfer, W. Suttrop, J.-K. Park, N.C. Logan, M.W. Shafer, H.H. Wang, Q. Ma, A. Kirk, B. Tal, M. Griener   +17 more
openaire   +2 more sources

Effect of aspect ratio on plasma response to resonant magnetic perturbations in tokamak devices

AIP Advances, 2023
A systematic numerical study is carried out, computing and comparing the plasma response to the resonant magnetic perturbation (RMP) field, applied for controlling edge localized modes (ELMs), in a series of tokamak plasmas with varying aspect ratio and ...
J. W. Li, L. Li, Y. Q. Liu, Y. F. Wang, P. Qin, Q. B. Luan, X. J. Huang, L. J. Guo, F. C. Zhong   +8 more
doaj   +1 more source

Toroidal modeling of 3D perturbations generated by current filaments in scrape-off layer in tokamak with biased divertor targets

Nuclear Fusion, 2022
The divertor biasing technique offers a promising alternative to control the edge localized mode (ELM) as well as the divertor heat load in tokamaks, as compared to the resonant magnetic perturbation (RMP) generated by magnetic coils.
G.Z. Hao, G.Q. Dong, B.T. Cui, Y.Q. Liu, Y.H. Xu, T.F. Sun, X.Q. Ji, S. Wang, Y.F. Zhao, J.Q. Xu, X. Bai, N. Zhang, C.Y. Li, L. Wang, H.D. He, J.M. Gao, Yi Liu, W.L. Zhong, M. Xu, X.R. Duan   +19 more
doaj   +1 more source

Pressure-driven amplification and penetration of resonant magnetic perturbations [PDF]

Physics of Plasmas, 2016
We show that a resonant magnetic perturbation applied to the boundary of an ideal plasma screw-pinch equilibrium with nested surfaces can penetrate inside the resonant surface and into the core. The response is significantly amplified with increasing plasma pressure.
J. Loizu, S. R. Hudson, P. Helander, S. A. Lazerson, A. Bhattacharjee   +4 more
openaire   +3 more sources

T2* Magnetic Resonance Imaging Uncovers Hemosiderin Burden in Pediatric Hemophilia: A Call for Sensitive Imaging Biomarkers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hemophilic arthropathy remains the leading morbidity in hemophilia despite modern prophylaxis, and early joint damage may be missed by routine exams. This study explored T2* MRI as a noninvasive biomarker of hemosiderin deposition in pediatric hemophilia.
Jessica Garcia, Tarique Hussain, Jeanne Dillenbeck, Matthew Hammer, Annette von Drygalski, Guy Young, Ayesha Zia   +6 more
wiley   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Dose‐dependent hepatotoxicity of hydrogen peroxide in HepG2 cells and its modulation by CYP450 induction

FEBS Open Bio, EarlyView.
NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks, Garth L. Maker, Emily C. Davies, Berin A. Boughton, Samantha Lodge   +4 more
wiley   +1 more source

Effect of controlled magnetic island bifurcation on electron diffusion

Nuclear Fusion
Magnetic islands strongly influence cross-field electron transport in magnetized plasmas. In particular, bifurcations of the island topology modify the number and location of O-points, X-points, and separatrix boundaries, thereby altering diffusion ...
Jessica Eskew, D.M. Orlov, B. Andrew, E. Bursch, M. Koepke, F. Skiff, M.E. Austin, T. Cote, C. Marini, E.G. Kostadinova   +9 more
doaj   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Isochronous island bifurcations driven by resonant magnetic perturbations in tokamaks

Physical Review E
Recent evidences show that heteroclinic bifurcations in magnetic islands may be caused by the amplitude variation of resonant magnetic perturbations in tokamaks. To investigate the onset of these bifurcations, we consider a large aspect ratio tokamak with an ergodic limiter composed of two pairs of rings that create external primary perturbations with ...
Leal, B. B., Caldas, I. L., de Sousa, M. C., Viana, R. L., Ozorio de Almeida, A. M.   +4 more
openaire   +3 more sources