Results 31 to 40 of about 34,988 (230)

Negative Specific Heat of a Magnetically Self-Confined Plasma Torus [PDF]

, 2002
It is shown that the thermodynamic maximum entropy principle predicts negative specific heat for a stationary magnetically self-confined current-carrying plasma torus. Implications for the magnetic self-confinement of fusion plasma are considered.Comment:
Aly, Fine, Kiessling, M. K.- H. Kiessling, Smith, T. Neukirch, Youngkins   +6 more
core   +3 more sources

Temporal distribution of linear densities of the plasma column in a plasma focus discharge

Nukleonika, 2015
Experiments were carried out on the PF-1000 plasma focus device, with a deuterium filling and with deuterium puffing from a gas-puff nozzle placed on the axis of the anode face. The current was reaching 2 MA.
Cikhardtova Balzhima, Kubeš Pavel, Cikhardt Jakub, Paduch Marian, Zielinska Ewa, Kravárik Josef, Řezáč Karel, Kortanek Jiři, Šíla Ondřej   +8 more
doaj   +1 more source

MA-class linear transformer driver for Z-pinch research

Physical Review Accelerators and Beams, 2020
A linear transformer driver (LTD) generator capable of delivering up to 0.9 MA current pulses with 160 ns rise time has been assembled and commissioned at University of California San Diego.
F. Conti, J. C. Valenzuela, V. Fadeev, N. Aybar, D. B. Reisman, A. Williams, G. Collins, IV, J. Narkis, M. P. Ross, F. N. Beg, R. B. Spielman   +10 more
doaj   +1 more source

Inference of main ion particle transport coefficients with experimentally constrained neutral ionization during edge localized mode recovery on DIII-D

Nuclear Fusion, 2023
The plasma and neutral density dynamics after an edge localized mode are investigated and utilized to infer the plasma transport coefficients for the density pedestal.
A.M. Rosenthal, J.W. Hughes, F.M. Laggner, T. Odstrčil, A. Bortolon, T.M. Wilks, F. Sciortino   +6 more
doaj   +1 more source

New model of calculating the energy transfer efficiency for the spherical theta-pinch device

, 2015
Ion-beam-plasma-interaction plays an important role in the field of Warm Dense Matter (WDM) and Inertial Confinement Fusion (ICF). A spherical theta pinch is proposed to act as a plasma target in various applications including a plasma stripper cell. One
Hock, C., Jacoby, J., Li, Y., Loisch, G., Weyrich, K., Xiao, G., Xu, G., Zhao, Y.   +7 more
core   +1 more source

Effects of the equilibrium model on impurity transport in tokamaks [PDF]

, 2013
Gyrokinetic simulations of ion temperature gradient mode and trapped electron mode driven impurity transport in a realistic tokamak geometry are presented and compared with results using simplified geometries.
Anderson, Johan, Fazendeiro, Luis, Nordman, Hans, Skyman, Andreas, Strand, Pär, Tegnered, Daniel   +5 more
core   +2 more sources

Microporous Microgel Assemblies Facilitating the Recruitment and Osteogenic Differentiation of Progenitor Cells for Bone Regeneration

Advanced Functional Materials, EarlyView.
There is a significant need for biomaterials with well‐defined stability and bioactivity to support tissue regeneration. In this study, we developed a tunable microgel platform that enables the decoupling of stiffness from porosity, thereby promoting bone regeneration.
Silvia Pravato, Haishuo Guan, Bianca M. Carrara, Mira Jacobs, Matteo Monticelli, Lukas Moser, Thomas Moragues, Andrew J. deMello, Tomaso Zambelli, Martin Ehrbar   +9 more
wiley   +1 more source

Quantum-mechanical calculation of Stark widths of Ne VII n=3, $\Delta n=0$ transitions

, 1998
The Stark widths of the Ne VII 2s3s-2s3p singlet and triplet lines are calculated in the impact approximation using quantum-mechanical Convergent Close-Coupling and Coulomb-Born-Exchange approximations.
C. A. Ramsbottom, D. V. Fursa, E. E. Whiting, E. J. Williams, G. Peach, H. R. Griem, H. R. Griem, I. Bray, I. Bray, J. A. Tully, J. D. Hey, M. Baranger, M. J. Seaton, R. D. Cowan, S. Alexiou, S. Alexiou, S. Glenzer, S. Glenzer, Th. Wrubel, Th. Wrubel, V. I. Fisher, V. I. Fisher, V. P. Shevelko, W. D. Johnston   +23 more
core   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

Advanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich, Michelle Kobus, Shirin Mesgarha, Erica Moretto, Laurens Grosche, Wolfgang Maison   +5 more
wiley   +1 more source

Modeling the Parker instability in a rotating plasma screw pinch

, 2012
We analytically and numerically study the analogue of the Parker (magnetic buoyancy) instability in a uniformly rotating plasma screw pinch confined in a cylinder.
B. P. Brown, Bateman G., C. B. Forest, Chandrasekhar S., Charbonneau P., Collins C., Fan Y., I. V. Khalzov, N. Katz, Tajima T., Velikhov E. P.   +10 more
core   +1 more source