Results 61 to 70 of about 39,674 (273)

Generation of geodesic acoustic mode by drift wave turbulence in tokamaks with toroidal rotation

AIP Advances
Generation of geodesic acoustic mode by drift wave turbulence spectrum has been investigated in the toroidally rotating tokamak plasmas using the wave kinetic equation.
Jun Yu, Jun Chen
doaj   +1 more source

Evidence for Toroidal B-Field Components in AGN Jets on Kiloparsec Scales

Galaxies, 2017
Though helical magnetic fields are generally believed to arise when the jets of Active Galactic Nuclei (AGN) are launched, it is still unclear what role they play (and if they survive) to the largest jet scales.
Sebastian Knuettel, Denise Gabuzda, Shane P. O’Sullivan   +2 more
doaj   +1 more source

Tayler instability of toroidal magnetic fields in MHD Taylor-Couette flows

, 2009
The nonaxisymmetric 'kink-type' Tayler instability (TI) of toroidal magnetic fields is studied for conducting incompressible fluids of uniform density between two infinitely long cylinders rotating around the same axis.
Acheson, Balbus, Chanmugam, Dubrulle, Howard, Knobloch, Kumar, Maeder, Michael, Ogilvie, Pessah, Pitts, Rüdiger, Rüdiger, Shalybkov, Shalybkov, Tagger, Tayler, Tayler, Vandakurov   +19 more
core   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Metasurfaces and Metadevices for Topological Electromagnetic Waves

Advanced Physics Research, EarlyView.
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie, Nilo Mata‐Cervera, Xi Xie, Yijie Shen   +3 more
wiley   +1 more source

Transport-driven toroidal rotation with general viscosity profile

Nuclear Fusion
Using the assumption of a weak normalized turbulent viscosity, usually valid in practice, the modulated-transport model (Stoltzfus-Dueck 2012 Phys. Plasmas 19 055908) is generalized to allow the turbulent transport coefficient to vary in an arbitrary way
T. Stoltzfus-Dueck, R. Brzozowski III
doaj   +1 more source

Rotation and Neoclassical Ripple Transport in ITER

, 2017
Neoclassical transport in the presence of non-axisymmetric magnetic fields causes a toroidal torque known as neoclassical toroidal viscosity (NTV). The toroidal symmetry of ITER will be broken by the finite number of toroidal field coils and by test ...
Dorland, W., Landreman, M., Paul, E. J., Poli, F. M., Smith, H. M., Spong, D. A.   +5 more
core   +1 more source

Kinematic dynamo action in a sphere. I. Effects of differential rotation and meridional circulation on solutions with axial dipole symmetry [PDF]

, 2000
A sphere containing electrically conducting fluid can generate a magnetic field by dynamo action, provided the flow is sufficiently complicated and vigorous. The dynamo mechanism is thought to sustain magnetic fields in planets and stars.
Arnoldi W. E., C. N. Barber, David Gubbins, Gilman P. A., J. J. Love, Mo®, Roberts G. O., Roberts P. H., S. Gibbons   +8 more
core   +1 more source

Toroidal‐Dipole‐Driven Polarization‐Selective Quasi‐BICs Enabling Wide‐Angle Near‐Field Image Display in Dielectric Metasurfaces

Advanced Physics Research, EarlyView.
This study presents toroidal‐dipole (TD)‐driven polarisation‐selective quasi‐bound states in the continuum (quasi‐BICs) in all‐dielectric metasurfaces, enabling transverse magnetic (TM)‐selective excitation with ultrahigh quality factors and wide‐angle‐stable polarisation‐dependent near‐field imaging.
Xueheng Yan, Dewang Huo, Haiyang Huang, Yang Jiao, Wei Li, Zengfeng Di   +5 more
wiley   +1 more source

Next Generation Hosts for Protein Recognition, Assembly and More

Chemistry – A European Journal, EarlyView.
The original design of synthetic receptors for proteins was based on macrocycles with a hydrophobic core and a polar/charged periphery. This design, geared towards protein recognition, facilitates receptor self‐assembly. Macrocycle oligomerization, in turn, contributes to protein assembly as evidenced in many cocrystal structures.
Peter B. Crowley
wiley   +1 more source