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This paper describes new modeling capabilities for predicting H-mode pedestal profiles in spherical tokamaks. Temperature profiles for NSTX discharges 132543 and 132588 are modeled by coupling the \textsc{astra} transport solver with…

等离子体物理 · 物理学 2026-03-24 P. -Y. Li , D. R. Hatch , L. A. Leppin , J. Schmidt , J. F. Parisi , M. Lampert , M. Kotschenreuther , S. M. Mahajan

This work aim to study the various thermal characteristics of nuclei in view of the saturation and critical behavior of infinite nuclear matter. The free energy of a nucleus is parametrized using the density and temperature-dependent…

核理论 · 物理学 2023-03-15 Vishal Parmar , Manoj K Sharma , S K Patra

TThis works proposes modifications to the values of input parameters in widely accepted semi-analytical models of thermodynamic properties of hydrogen and its binary mixtures to improve their prediction accuracy. The modifications include…

应用物理 · 物理学 2024-10-01 Ehsan Heidaryan , Saman A. Aryana

New results from MAST are presented that focus on validating models in order to extrapolate to future devices. Measurements during start-up experiments have shown how the bulk ion temperature rise scales with the square of the reconnecting…

等离子体物理 · 物理学 2017-08-02 A Kirk , J Adamek , RJ Akers , S Allan , L Appel , F Arese Lucini , M Barnes , T Barrett , N Ben Ayed , W Boeglin , J Bradley , P K Browning , J Brunner , P Cahyna , M Carr , F Casson , M Cecconello , C Challis , IT Chapman , S Chapman , S Conroy , N Conway , WA Cooper , M Cox , N Crocker , B Crowley , S Cardnell , J Chorley , G Cunningham , A Danilov , D Darrow , R Dendy , D Dickinson , W Dorland , B Dudson , L Easy , S Elmore , M Evans , T Farley , N Fedorczak , A Field , I Fitzgerald , M Fox , S Freethy , L Garzotti , YC Ghim , K Gi , M Gorelenkova , W Gracias , C Gurl , W Guttenfelder , C Ham , D Harting , E Havlickova , N Hawkes , T Hender , S Henderson , J Hillesheim , B Hnat , J Horacek , J Howard , D Howell , D Dunai , G Fishpool , K Gibson , J Harrison , E Highcock , B Huang , M Inomoto , R Imazawa , O Jones , K Kadowaki , S Kaye , D Keeling , M Kocan , L Kogan , M Komm , W Lai , J Leddy , H Leggate , K Imada , I Klimek , J Hollocombe , B Lipschultz , S Lisgo , YQ Liu , B Lloyd , B Lomanowski , V Lukin , G Maddison , J Madsen , J Mailloux , R Martin , G McArdle , I Lupelli , K McClements , B McMillan , A Meakins , H Meyer , C Michael , F Militello , J Milnes , G Motojima , D Muir , G Naylor , A Nielsen , M O'Brien , M O'Mullane , J Olsen , J Omotani , Y Ono , S Pamela , AW Morris , T O'Gorman , L Pangione , F Parra , A Patel , W Peebles , R Perez , S Pinches , L Piron , M Price , M Reinke , P Ricci , F Riva , C Roach , M Romanelli , D Ryan , S Saarelma , A Saveliev , R Scannell , A Schekochihin , S Sharapov , R Sharples , V Shevchenko , K Shinohara , S Silburn , J Simpson , A Stanier , J Storrs , H Summers , Y Takase , P Tamain , H Tanabe , H Tanaka , K Tani , D Taylor , D Thomas , N Thomas-Davies , A Thornton , M Turnyanskiy , M Valovic , R Vann , F Van Wyk , N Walkden , T Watanabe , H Wilson , M Wischmeier , T Yamada , J Young , S Zoletnik , the MAST Team , the EUROfusion MST1 Team

The non-linear dynamics of large ion clouds ($N \geq 256 $ ions) trapped in radio-frequency traps and coupled to laser-cooling give rise to a bistable behaviour of the temperature. Numerical simulations of the free evolution of a large…

原子物理 · 物理学 2023-07-31 Adrien Poindron , Jofre Pedregosa-Gutierrez , Caroline Champenois

The finite-temperature transport properties of FeRh compounds are investigated by first-principles Density Functional Theory-based calculations. The focus is on the behavior of the longitudinal resistivity with rising temperature, which…

The new spectroscopic method for measurement of hot plasma parameters is developed. The method based on Ha profile monitoring. The profile was accurately calculated for a wide range of plasma parameters (n$_e \sim $ 10$^{14} \div $…

等离子体物理 · 物理学 2007-05-23 P. I. Melnikov , I. A. Ivanov

Atmospheric retrievals (AR) of exoplanets typically rely on a combination of a Bayesian inference technique and a forward simulator to estimate atmospheric properties from an observed spectrum. A key component in simulating spectra is the…

天体物理仪器与方法 · 物理学 2023-12-20 Timothy D. Gebhard , Daniel Angerhausen , Björn S. Konrad , Eleonora Alei , Sascha P. Quanz , Bernhard Schölkopf

We present a non-invasive technique for measuring the thermal conductivity of fragile and sensitive materials. In the context of planet formation research, the investigation of the thermal conductivity of porous dust aggregates provide…

地球与行星天体物理 · 物理学 2015-03-17 Maya Krause , Jürgen Blum , Yuri V. Skorov , Mario Trieloff

The electron density at the separatrix ($n_{e,\mathrm{sep}}$) plays a central role in balancing energy confinement, detachment achievement, and ELM suppression in tokamaks, thereby influencing core-edge integration. To study what determines…

Recent data on the high-pT pion nuclear modification factor, $R_{AA}(p_T)$, and its elliptic azimuthal asymmetry, $v_2(p_T)$, from RHIC/BNL and LHC/CERN are analyzed in terms of a wide class of jet-energy loss models coupled to different…

高能物理 - 唯象学 · 物理学 2015-06-19 Barbara Betz , Miklos Gyulassy

The thermo-electrical properties of a complex silicon cantilever structure used in thermal scanning probe lithography are modeled based on well established empirical laws for the thermal conductivity in silicon, the electrical conductivity…

材料科学 · 物理学 2017-11-28 M. Spieser , C. Rawlings , E. Lörtscher , U. Duerig , A. W. Knoll

We present a methodical study of the thermal and nuclear properties for the hot nuclear matter using relativistic-mean field theory. We examine the effects of temperature on the binding energy, pressure, thermal index, symmetry energy, and…

高能物理 - 唯象学 · 物理学 2021-09-17 Ankit Kumar , H. C. Das , M. Bhuyan , S. K. Patra

The sensitivity of a THz hot-electron nanobolometer (nano-HEB) made from a normal metal is analyzed. Johnson Noise Thermometry (JNT) is employed as a readout technique. In contrast to its superconducting TES counterpart, the normal-metal…

天体物理仪器与方法 · 物理学 2014-12-31 Boris S. Karasik , Christopher B. McKitterick , Theodore J. Reck , Daniel E. Prober

The behavior of finite temperature planar electrodynamics is investigated. We calculate the static as well as dynamic characteristic functions using real time formalism. The temperature and density dependence of dielectric and permeability…

高能物理 - 理论 · 物理学 2015-06-26 G. Gat , R. Ray

The interaction of Alfv\'{e}n Eigenmodes (AEs) and energetic particles is one of many important factors determining the success of future tokamaks. In JET, eight in-vessel antennas were installed to actively probe stable AEs with…

The dynamics of Lennard-Jones fluid is studied through extended mode coupling theory (MCT) with the inclusion of the slow mode of defect density. Inclusion of defect density facilitates the liquid like state for temperatures much lower than…

统计力学 · 物理学 2009-11-07 Sudha Srivastava , Shankar P. Das

We construct partially ionized hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with surface fields B=10^12-5 \times 10^14 G and effective temperatures T_eff \sim a few \times 10^5-10^6 K. These models are…

天体物理学 · 物理学 2009-11-10 Wynn C. G. Ho , Dong Lai , Alexander Y. Potekhin , Gilles Chabrier

Recent work has shown that a temperature dependence of the shear viscosity to entropy ratio, $\eta/s$, influences the collective flow pattern in heavy-ion collisions in characteristic ways that can be measured by studying hadron transverse…

核理论 · 物理学 2015-06-11 Christopher Plumberg , Ulrich Heinz

The temperature dependence of the surface plasmon resonance in small metal spheres is calculated using an electron gas model within the Random Phase Approximation. The calculation is mainly devoted to the study of spheres with diameters up…

介观与纳米尺度物理 · 物理学 2017-06-07 Claudia Fasolato , Francesco Sacchetti , Pietro Tozzi , Caterina Petrillo