Results 31 to 40 of about 14,514,915 (287)

Convective Cells and Blob Control in a Simple Magnetized Plasma

Physical Review Letters, 2012
Blob control by creating convective cells using biased electrodes is demonstrated in simple magnetized toroidal plasmas. A two-dimensional array of electrodes is installed on a metal limiter to obtain different biasing schemes. Detailed two-dimensional measurements across the magnetic field reveal the formation of a convective cell, which shows a high ...
Theiler, Christian Gabriel, Furno, Ivo, Loizu, Joaquim, Fasoli, Ambrogio   +3 more
openaire   +3 more sources

Modulation of plasma uniformity in capacitively coupled plasmas using non-uniform magnetic fields [PDF]

AIP Advances
Based on a two-dimensional axisymmetric plasma fluid model, this study investigates the modulation effect of non-uniform static magnetic fields on plasma uniformity in capacitively coupled plasma (CCP) chambers.
Feng Shi, Shuxia Zhao, Yonghao Xu
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Plasma modeling and magnetic control of FAST tokamak proposal

2011 IEEE International Conference on Control Applications (CCA), 2011
Fusion Advanced Studies Torus (FAST) conceptual study has been proposed as possible European ITER Satellite. This facility is aimed at exploring and preparing ITER operation scenarios as well as helping DEMO design and R&D. This paper presents the plasma position and shape control studies, focusing on the machine flexibility in terms of both ...
Calabr, G., Cucchiaro, A., Labate, C. E., Mattei, M., Pironti, Ramogida, Viola, B., Maviglia, F., Albanese, R., Ambrosino, G., Artaserse, Crisanti   +18 more
openaire   +4 more sources

Model-based control of the magnetic flux profile in a Tokamak plasma [PDF]

49th IEEE Conference on Decision and Control (CDC), 2010
A new model-based controller for the magnetic flux profile in a Tokamak plasma was developed using a simplified model of the magnetic flux dynamics. This simplified model is based on physically relevant dynamics that take into account the distributed nature of the system.
Bribiesca Argomedo, Federico, Witrant, Emmanuel, Prieur, Christophe, Georges, Didier, Brémond, Sylvain   +4 more
openaire   +1 more source

Influence factors and mechanism of backscattering characteristics of electromagnetic waves in a single layer plasma tube array

AIP Advances
A single-row plasma tube array (PTA) experimental system is established to improve the backscattering attenuation of a metal plate covered by a plasma tube array.
Rubing Liu, Jun Peng, Dianqing Qiu, Liguang Lin, Zhen Liu, Qi Lin   +5 more
doaj   +1 more source

Numerical simulations of arc plasma under external magnetic field-assisted gas metal arc welding

AIP Advances, 2020
The arc plasma behavior for gas metal arc welding (GMAW) with an external compound magnetic field was numerically investigated. A three-dimensional finite element model for the external magnetic field (EMF) and a three-dimensional finite volume model for
Lin Wang, Ji Chen, ChunLi Jiang, ChuanSong Wu   +3 more
doaj   +1 more source

Drift kinetic theory of neoclassical tearing modes in tokamak plasmas: polarisation current and its effect on magnetic island threshold physics

Nuclear Fusion, 2023
A nonlinear 4-dimensional drift island theory derived in (Imada et al 2019 Nucl. Fusion 59 046016 and references therein) provides qualitative predictions of the plasma response to a stationary neoclassical tearing mode (NTM) magnetic island in a low ...
A.V. Dudkovskaia, J.W. Connor, D. Dickinson, P. Hill, K. Imada, S. Leigh, H.R. Wilson   +6 more
doaj   +1 more source

Unlocking the potential of cell‐permeable nanobodies for intracellular applications

FEBS Letters, EarlyView.
This review outlines current strategies for delivery of nanobodies into cells and highlights recent examples of functional applications. By addressing and manipulating intracellular targets, these molecules hold great potential for treating cancer, respiratory diseases and neurological disorders, making this a vibrant area of research in the biomedical
Mariona Gené‐Verdés, Luise Franz, Christian P.R. Hackenberger   +2 more
wiley   +1 more source

Effective control of the arc discharge-generated plasma jet by smartly designed magnetic fields

, 2014
© 2014 IEEE. Control of ion current directed to a substrate is a key feature of plasma processing reactors. Magnetic field has been used to enhance the plasma setups.
Keidar, M, Baranov, O, Fang, J, Cvelbar, U, Ostrikov, KK, Lu, X   +5 more
core   +1 more source