中文
相关论文

相关论文: Physics-based Model for Nonuniform Thermionic Elec…

200 篇论文

The Multi-Mode Model (MMM) for turbulent transport was applied to a large set of well-analyzed discharges from the National Spherical Torus Experiment (NSTX) in order to evaluate its sensitivities to a wide range of plasma conditions. MMM…

等离子体物理 · 物理学 2025-09-05 J. B. Lestz , G. Avdeeva , S. M. Kaye , M. V. Gorelenkova , F. D. Halpern , J. McClenaghan , A. Y. Pankin , K. E. Thome

This paper discusses how classical transport theories such as the thermionic emission, can be used as a powerful tool for the study and the understanding of the most complex mechanisms of transport in Fin Field Effect Transistors (FinFETs).…

介观与纳米尺度物理 · 物理学 2011-11-28 G. C. Tettamanzi , A. Paul , S. Lee , G. Klimeck , S. Rogge

In this study, the physics of sheath formation in a collisional two-electron temperature plasma in the presence of an oblique external magnetic field has been investigated. At first, a comparative study among the fluid electron model,…

等离子体物理 · 物理学 2022-08-29 G. Sharma , R. Paul , K. Deka , R. Moulick , S. Adhikari , S. S. Kausik , B. K. Saikia

We develop a thermodynamical model of fermionic dark matter halos at finite temperature. Statistical equilibrium states may be justified by a process of violent collisionless relaxation in the sense of Lynden-Bell or from a collisional…

广义相对论与量子宇宙学 · 物理学 2022-09-07 Pierre-Henri Chavanis

Modelling elastocaloric effect (eCE) is crucial for the design of environmentally friendly and energy-efficient eCE based solid-state cooling devices. Here, a thermodynamically consistent non-isothermal phase-field model (PFM) coupling…

材料科学 · 物理学 2023-03-10 Wei Tang , Qihua Gong , Min Yi , Bai-Xiang Xu , Long-Qing Chen

Heated metal filaments under electric fields and low pressures of alkali metal gaseject electrons by thermionic emission as a function of the pressure of the gas and thetemperature of the filament. To explore this process in a program to…

仪器与探测器 · 物理学 2020-11-09 João F. Shida , Fangjian Wu , Eric Spieglan , Mesut Çalışkan

Five parameters of a model of a polymer electrolyte membrane fuel cell cathode (the porosity of the gas diffusion layer, the porosity of the catalyst layer, the exchange current density of the oxygen reduction reaction, the effective ionic…

材料科学 · 物理学 2013-08-22 Qingzhi Guo , Vijay A. Sethuraman , Ralph E. White

The plasma-material interactions present in multiple fusion and propulsion concepts between the flow of plasma through a channel and a material wall drive the emission of secondary electrons. This emission is capable of altering the…

等离子体物理 · 物理学 2024-03-15 Kolter Bradshaw , Bhuvana Srinivasan

Thermo-osmotic flows, generated by applying a thermal gradient along a liquid-solid interface, could be harnessed to convert waste heat into electricity. While this phenomenon has been known for almost a century, there is a crucial need to…

软凝聚态物质 · 物理学 2024-07-15 Mehdi Ouadfel , Samy Merabia , Yasutaka Yamaguchi , Laurent Joly

We suggest a model of Fermi Bubbles (FBs) in the Galactic halo of the altitude about 7-8 kpc, which is seen in non-thermal microwave and gamma-ray ranges. It was assumed that this emission is generated by relativistic electrons of cosmic…

高能天体物理现象 · 物理学 2026-05-25 V. A. Dogiel , D. O. Chernyshov , T. S. Fatekhov , A. M. Kiselev , C. M. Ko

In a previous paper we proposed a new model for the emission by amorphous astronomical dust grains, based on solid-state physics. The model uses a description of the Disordered Charge Distribution (DCD) combined with the presence of…

星系天体物理 · 物理学 2015-05-28 D. Paradis , J. -P. Bernard , C. Mény , V. Gromov

Un-gated thermionic cathode RF guns are well known as a robust source of electrons for many accelerator applications. These sources are in principle scalable to high currents without degradation of the transverse emittance due to control…

加速器物理 · 物理学 2017-05-04 J. P. Edelen , J. R. Harris

A model of a strongly correlated electron liquid based on the fermion condensation (FC) is applied to the consideration of high temperature superconductors in its superconducting and normal states. Within our model the appearance of FC…

超导电性 · 物理学 2009-10-31 M. Ya. Amusia , V. R. Shaginyan

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

Transport of fast electron in overdense plasmas is of key importance in high energy density physics. However, it is challenging to diagnose the fast electron transport in experiments. In this article, we study coherent transition radiation…

等离子体物理 · 物理学 2023-06-07 Yangchun Liu , Xiaochuan Ning , Dong Wu , Tianyi Liang , Peng Liu , Shujun Liu , Xu Liu , Zhengmao Sheng , Wei Hong , Yuqiu Gu , Xiantu He

We extend the density-functional theory for superconductors (SCDFT) to take account of the dynamical structure of the screened Coulomb interaction. We construct an exchange-correlation kernel in the SCDFT gap equation on the basis of the…

超导电性 · 物理学 2014-01-08 Ryosuke Akashi , Ryotaro Arita

The Pulsed Townsend experiment enables the extraction of relevant electron transport properties in different gases such as the electron drift velocity $W$ (or equivalently the mobility $\mu$), the longitudinal diffusion coefficient…

等离子体物理 · 物理学 2026-02-11 Mücahid Akbas

Metal photocathodes are an important source of high-brightness electron beams, ubiquitous in the operation of both large-scale accelerators and table-top microscopes. When the surface of a metal is nano-engineered with patterns on the order…

A proton exchange membrane fuel cell (PEMFC) for low power and portable applications is studied with thermal neutron radiography. The PEMFC operates under full passive conditions, with an air-breathing cathode and a dead-end anode supplied…

A stochastic model for polarization switching in tetragonal ferroelectric ceramics is introduced, which includes sequential 90{\deg}- and parallel 180{\deg}-switching processes and accounts for the dispersion of characteristic switching…

材料科学 · 物理学 2019-06-26 Ruben Khachaturyan , Jan Schultheiss , Jurij Koruza , Yuri A. Genenko