Results 41 to 50 of about 1,276,201 (259)

Comparative H-mode density limit studies in JET and AUG

Nuclear Materials and Energy, 2017
Identification of the mechanisms for the H-mode density limit in machines with fully metallic walls, and their scaling to future devices is essential to find for these machines the optimal operational boundaries with the highest attainable density and ...
A. Huber, M. Bernert, S. Brezinsek, A.V. Chankin, G. Sergienko, V. Huber, S. Wiesen, P. Abreu, M.N.A. Beurskens, A. Boboc, M. Brix, G. Calabrò, D. Carralero, E. Delabie, T. Eich, H.G. Esser, M. Groth, C. Guillemaut, S. Jachmich, A. Järvinen, E. Joffrin, A. Kallenbach, U. Kruezi, P. Lang, Ch. Linsmeier, C.G. Lowry, C.F. Maggi, G.F. Matthews, A.G. Meigs, Ph. Mertens, F. Reimold, J. Schweinzer, G. Sips, M. Stamp, E. Viezzer, M. Wischmeier, H. Zohm   +36 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Flexible Spacecraft Attitude Control using Hybrid Control Scheme of H∞ and Sliding Mode Control [PDF]

فصلنامه علوم و فناوری فضایی, 2008
In this paper, based on the Lagrange method, attitude motion equations for a flexible spacecraft have been derived. Flexible appendages are modeled by Euler-Bernoulli beam.
M. Sayanjali, J. Roshanian, A. Ghafari
doaj  

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

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Empirical scaling of the L–H threshold power for metal wall tokamaks using a multi-device database

Nuclear Fusion
The empirical scaling for the H-mode power threshold in tokamaks has been revisited using a database with threshold data from machines with a metallic first wall as part of International Tokamak Physics Activity (ITPA) task TC-26.
E. Delabie, E.R. Solano, J.W. Hughes, C.F. Maggi, F. Ryter, G. Birkenmeier, P. Carvalho, M. Cavedon, M. Chernyshova, P. David, J. Hillesheim, U. Plank, the EUROfusion Tokamak Exploitation Team, the ASDEX Upgrade Team, JET Contributors   +14 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

On Greenwald density limit in H-mode

Physics of Plasmas, 2009
The experimental Greenwald density limit in tokamak H-mode is explained from the requirements that in the edge transport barrier the radial pressure gradient does not exceed the ballooning stability threshold and the plasma collisionality corresponds to the transition from the plateau regime of neoclassical transport to the Pfirsch–Schlüter one, where ...
openaire   +2 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Study on divertor detachment and pedestal characteristics in the DIII-D upper closed divertor

Nuclear Fusion, 2023
Experiments performed in DIII-D demonstrate that higher plasma current and heating power combined with impurity seeding facilitate the achievement of divertor detachment with a higher pedestal pressure and higher plasma performance in H-mode plasmas with
H.Q. Wang, D.M. Thomas, A.W. Leonard, X.X. Ma, H.Y. Guo, A.L. Moser, J.G. Watkins, F. Scotti, C. Lasnier, M.E. Fenstermacher, A.G. McLean, M.W. Shafer, B. Grierson, J. Ren, T.H. Osborne   +14 more
doaj   +1 more source