中文
相关论文

相关论文: Ignition and Burn in a Small Magnetized Fuel Targe…

200 篇论文

High energy gain in inertial fusion schemes requires the propagation of a thermonuclear burn wave from hot to cold fuel. We consider the problem of burn propagation when a magnetic field is orthogonal to the burn wave. Using an extended-MHD…

等离子体物理 · 物理学 2021-03-31 B. Appelbe , A. L. Velikovich , M. Sherlock , C. A. Walsh , A. J. Crilly , S. O Neill , J. P. Chittenden

Experimental asymmetries in fusion implosions can lead to magnetic field generation in the hot plasma core. For typical parameters, previous studies found that the magnetisation Hall parameter, given by the product of the electron…

等离子体物理 · 物理学 2021-03-17 James D. Sadler , Hui Li , Kirk A. Flippo

Aims. Relativistic jets launched from active galactic nuclei accelerate up to highly relativistic velocities within a few parsecs to tens of parsecs. The precise way in which this process takes place is still under study. While magnetic…

高能天体物理现象 · 物理学 2023-12-12 L. Ricci , M. Perucho , J. López-Miralles , J. M. Martí , B. Boccardi

Using a wire heater to ignite magnetic avalanches in fixed magnetic field applied along the easy axis of single crystals of the molecular magnet Mn$_{12}$-acetate, we report fast local measurements of the temperature and time-resolved…

介观与纳米尺度物理 · 物理学 2007-09-10 S. McHugh , R. Jaafar , M. P. Sarachik , Y. Myasoedov , A. Finkler , H. Shtrikman , E. Zeldov , R. Bagai , G. Christou

Using two different configurations of temperature and magnetic field gradients, we observed that, in a quasi one-dimensional magnetic fluid, magnetic force either reduces the temperature difference across the sample when the two gradients…

软凝聚态物质 · 物理学 2018-01-16 Jun Huang , Weili Luo , Tianshu Liu

The low temperature specific heat C(H) of several rare-earth manganites (La_(0.7)Sr_(0.3)MnO_(3), Nd_(0.5)Sr_(0.5)MnO_(3), Pr_(0.5)Sr_(0.5)MnO_(3), La_(0.67)Ca_(0.33)MnO$_(3), La_(0.5)Ca_(0.5)MnO_(3), La_(0.45)Ca_(0.55)MnO_(3) and…

凝聚态物理 · 物理学 2009-10-31 M. Roy , J. F. Mitchell , S. J. Potashnik , P. Schiffer

Spontaneous magnetization in the Maxwell QED$_{2+1}$ at finite fermion density is studied. It is shown that at low fermion densities the one-loop free energy has its minimum at some nonvanishing value of the magnetic field. The…

高能物理 - 理论 · 物理学 2008-02-03 Vadim Zeitlin

Two-color lattice QCD with N_f=4 staggered fermion degrees of freedom (no rooting trick is applied) with equal electric charge q is studied in a homogeneous magnetic background field B and at non-zero temperature T. In order to circumvent…

高能物理 - 格点 · 物理学 2014-04-02 E. -M. Ilgenfritz , M. Muller-Preussker , B. Petersson , A. Schreiber

The general relation between ignition and deflagration analyses was studied theoretically and computationally. Simple analysis showed that the temporal evolutions of normalized fuel mass fraction and the normalized temperature in a 0D…

流体动力学 · 物理学 2023-01-19 Youhi Morii , Kaoru Maruta

Biofuels have shown to be a reliable source of energy and a replication of fossil fuels. A well-known branch of biofuels is oxygenated ones derived from lignin compounds. Although a wide range of studies was done on oxygenated fuels,…

流体动力学 · 物理学 2018-06-20 Saeid Zare , Lameed Ayo Onigbanjo , Shrabanti Roy , Omid Askari

Primordial magnetogenesis is an intriguing possibility to explain the origin of intergalactic magnetic fields (IGMFs). However, the baryon isocurvature problem has recently been pointed out, ruling out all magnetogenesis models operating…

宇宙学与河外天体物理 · 物理学 2024-10-08 Kazuki Yanagihara , Fumio Uchida , Tomohiro Fujita , Shinji Tsujikawa

We have used a realistic nuclear potential, AV18, and a many body technique, the lowest order constraint variational (LOCV) approach, to calculate the properties of hot magnetized nuclear matter. By investigating the free energy, spin…

核理论 · 物理学 2017-03-02 Z. Rezaei , G. H. Bordbar

The possibility of studying non-thermal electron energization in laser-driven plasma experiments of magnetic reconnection is studied using two- and three-dimensional particle-in-cell simulations. It is demonstrated that non-thermal…

等离子体物理 · 物理学 2016-03-23 Samuel Totorica , Tom Abel , Frederico Fiuza

The thermonuclear burn-up of highly compressed deuterated methane CD$_4$ is considered in the spherical geometry. The minimal required values of the burn-up parameter $x = \rho_0 \cdot r_f$ are determined for various temperatures $T$ and…

等离子体物理 · 物理学 2015-05-19 Alexei M. Frolov

We consider the case of very low reheating scenarios ($T_{\rm RH}\sim\mathcal{O}({\rm MeV})$) with a better calculation of the production of the relic neutrino background (with three-flavor oscillations). At 95% confidence level, a lower…

宇宙学与河外天体物理 · 物理学 2015-12-30 P. F. de Salas , M. Lattanzi , G. Mangano , G. Miele , S. Pastor , O. Pisanti

New experimental data are collected for methyl-cyclohexane (MCH) autoignition in a heated rapid compression machine (RCM). Three mixtures of MCH/O2/N2/Ar at equivalence ratios of $\phi$=0.5, 1.0, and 1.5 are studied and the ignition delays…

化学物理 · 物理学 2017-06-12 Bryan W. Weber , WIlliam J. Pitz , Marco Mehl , Emma Silke , Alexander C. Davis , Chih-Jen Sung

The persistent thermal luminosity of magnetars and their outbursts suggest the existence of some internal heat sources located in their outer crust. The compression of matter accompanying the decay of the magnetic field may trigger…

高能天体物理现象 · 物理学 2021-06-10 Nicolas Chamel , Anthea Francesca Fantina , Lami Suleiman , Julian-Leszek Zdunik , Pawel Haensel

The magnetic, transport, and structural properties of (Ga,Cr)As are reported. Zincblende Ga$_{1-x}$Cr$_{x}$As was grown by low-temperature molecular beam epitaxy (MBE). At low concentrations, x$\sim$0.1, the materials exhibit unusual…

材料科学 · 物理学 2009-11-07 A. Dakhama , B. Lakshmi , D. Heiman

The use of magnetic fields to improve the performance of hohlraum-driven implosions on the National Ignition Facility (NIF) is discussed. The focus is on magnetically insulated inertial confinement fusion (ICF), where the primary field…

Autoignition delay times have been measured in a rapid compression machine at Lille at temperatures after compression from 630 to 840 K, pressures from 8 to 14 bar, \Phi = 1 and for a iso octane/1 hexene mixture containing 82% iso-octane…