作者: 火海 時間: 2025-3-21 21:11 作者: 試驗(yàn) 時間: 2025-3-22 01:20
The Origin of Jets from Young Stars: Steady State Disk Wind Models Confronted to Observationstoroidal velocities imply large ejection efficiencies (.), suggesting that thermal gradients (originating in an accretion heated disk corona for example) play an important role in accelerating the flow.作者: 冒煙 時間: 2025-3-22 08:20
The Efficiency of the Magnetic Acceleration in Relativistic Jets flux ratio. We discuss how these values depend on the conditions near the origin of the flow. By employing self-similar solutions we verify the above result, and show that a Poynting-dominated flow near the source reaches equipartition between Poynting and matter energy fluxes, or even becomes matter-dominated, depending on the value of σ./..作者: 過份艷麗 時間: 2025-3-22 09:47
On the MHD Acceleration of Astrophysical Jetsm poloidal magnetic field, we show how both the accretion flow and the acceleration of the outflow occur, and we present in detail which are the forces responsible for the jet launching and collimation. Our simulation also shows how the collimating forces due to the self-generated toroidal magnetic field can produce some peculiar knotty features.作者: Cabinet 時間: 2025-3-22 14:47 作者: 古文字學(xué) 時間: 2025-3-22 20:11
eils im historischen Kontext betrachtet werden müssen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.978-3-8070-0204-0978-3-642-96016-1作者: 善變 時間: 2025-3-22 21:39 作者: 無辜 時間: 2025-3-23 03:53
Nektarios VlahakisGewebsneubildungen sind. Das ?u?erliche Merkmal einer umschriebenen Anschwellung ist nicht ausschlaggebend, da es auch durch Exsudat und Transsudat hervorgerufen wird, und andererseits bei einem Teil der Geschwülste fehlen kann.作者: 胡言亂語 時間: 2025-3-23 06:13
Oklahoma Notes, Anatomy contains self-assessment questions, geared to the current USMLE format; tables and figures to promote rapid self-assessment and review; a low price; and coverage of just the information needed to ensure Boards success.作者: 壓倒 時間: 2025-3-23 12:40 作者: 替代品 時間: 2025-3-23 15:45 作者: 靦腆 時間: 2025-3-23 19:33 作者: 分期付款 時間: 2025-3-23 22:47
Interpreting the Observations of Herbig-Haro Jets observations of individual HH objects. The only models that have been developed to this point are the “internal working surface model” (in which the structures along HH jets are interpreted as working surfaces resulting from a time-variability in the ejection) or the “Kelvin-Helmholtz instability m作者: aspersion 時間: 2025-3-24 03:26 作者: 假裝是我 時間: 2025-3-24 06:40 作者: 使激動 時間: 2025-3-24 10:46 作者: Bouquet 時間: 2025-3-24 15:31 作者: Confound 時間: 2025-3-24 20:22 作者: GROSS 時間: 2025-3-24 23:19
Virtual Jets: From Self-Similar to Numerical Solutions like (1) to emphasize the huge difficulties one has to face when attempting to perform magnetohydrodynamic (MHD) numerical simulations of such discs; (2) to show how self-similar solutions can help to solve these difficulties. In particular, they allow to choose suitable boundary conditions and/or 作者: Binge-Drinking 時間: 2025-3-25 03:30
MHD Accretion-Ejection Flowsng large-scale, self-collimated MHD jets. In particular, I discuss the physical conditions required to produce these outflows and the related numerical issues. As an illustration I also present axisymmetric MHD numerical simulations of such accretion-ejection engines, demonstrating the mechanism con作者: certitude 時間: 2025-3-25 09:46
On the MHD Acceleration of Astrophysical Jetsive Mesh Refinement (AMR) code (FLASH — University of Chicago). Thanks to this tool we can follow the evolution of the system for many dynamical timescales with a high-spatial resolution. Assuming an initial condition in which a Keplerian disk, thus with no accretion motions, is threaded by a unifor作者: 逃避責(zé)任 時間: 2025-3-25 14:58
MHD Simulations of Crab’s Jet and Torusstronomy than any other single object beyond the solar system. The most intriguing recent result is the completely unexpected discovery of a peculiar “jet-torus” structure in the inner part of the nebula. Similar structures were found later in other Crab-like nebulae. This discovery clearly indicate作者: 似少年 時間: 2025-3-25 16:56
How Can Jets Survive MHD Instabilities?arge-scale coalescence effect partially countered by small-scale reconnection events is shown to dominate the dynamics in a two-dimensional layer subject to Kelvin-Helmholtz (KH) instabilities. Second, an interaction mechanism between two different types of instabilities (KH and current-driven modes作者: 全能 時間: 2025-3-25 23:22
Entrainment and Deceleration of Relativistic Jets can be due either to intrinsec different properties of the AGN or to interaction of the jet with different enviroments. We assume that jets are always relativistic and supersonic close to their source, as recent observations suggest, and we explore the conditions in which the jets decelerate assumi作者: Chameleon 時間: 2025-3-26 03:45
Book 20043". Our goal in convening this meeting was to gather some of the scientists among the most active in the field of numerical simulations and modelling of astrophysi- cal jets. For keeping the participants close to the "real world", we also invited a few observers to give up-to-date reviews outlining 作者: 口訣 時間: 2025-3-26 04:23
Attilio Ferrari Abkürzungen von wichtigen Begriffen sowie einer Terminologie zum Bewegungsapparat auf den Buchrückeninnenseiten. Sie werden insbesondere dem Anf?nger eine gro?e Erleichterung sein und langes Suchen ersparen.作者: 不規(guī)則的跳動 時間: 2025-3-26 08:31 作者: ORE 時間: 2025-3-26 15:07
MHD Outflows from Hot Coronaeication of AGN jets and extension to the relativistic regime of these exact axisymmetric solutions Finally we discuss how it is possible to extend the polytropic equation of state and Parker winds to the relativistic regime to have a simple toy model for understanding thermal acceleration.作者: 正式通知 時間: 2025-3-26 17:23
Virtual Jets: From Self-Similar to Numerical Solutions (2) to show how self-similar solutions can help to solve these difficulties. In particular, they allow to choose suitable boundary conditions and/or relevant initial conditions. In all cases anyway, they provide a framework for understanding and testing the outcome of numerical simulations.作者: 無情 時間: 2025-3-26 20:58
How Can Jets Survive MHD Instabilities?ect to Kelvin-Helmholtz (KH) instabilities. Second, an interaction mechanism between two different types of instabilities (KH and current-driven modes) is shown to occur in a cylindrical jet configuration embedded in an helical magnetic field. Finally, we discuss the implications of these results for astrophysical jets survival.作者: 女歌星 時間: 2025-3-27 01:24
Entrainment and Deceleration of Relativistic Jetss relativistic and supersonic close to their source, as recent observations suggest, and we explore the conditions in which the jets decelerate assuming FR I morphology. We have carried out high resolution 3D simulations for a set of parameters and in this paper we concentrate our discussion on two extreme cases.作者: COKE 時間: 2025-3-27 06:04
absichtlich alles beiseite gelassen, was zu der Funktion geh?rt, die, alles in allem genommen, die Hauptleistung der Capillaren darstellt: das ist der Stoffaustausch zwischen Blut und Geweben oder Gewebsflüssigkeiten, der durch die Capillarwand hindurch stattfindet.作者: scrape 時間: 2025-3-27 12:09 作者: condescend 時間: 2025-3-27 13:40 作者: Saline 時間: 2025-3-27 17:55 作者: debris 時間: 2025-3-27 22:56
Francesca Bacciottije mehr die Ansicht durchdringt, der Patient habe das Recht zu fordern, da? jeder Eingriff schmerzlos geschehe, desto mehr tritt die Notwendigkeit hervor, diese Technik so auszugestalten, da? sie nicht nur in der Hand dessen eine sichere Anwendung erlaubt, der durch jahrelange übung die ?gefühlsm??i作者: OATH 時間: 2025-3-28 05:56
Catherine Dougados,Sylvie Cabrit,Jonathan Ferreira,Nicholas Pesenti,Paulo Garcias,Darren O’brien gewohnter Weise feierlich zu begehen. Das soll diesmal weniger denn je ein prunkhaftes Fest sein; wenn der Rahmen auch danach aussieht, die Herzen sind ernsthaft bedrückt und die Trauer des Landes liegt auf uns wie Zentnerlast. Und doch ist es in solchen schwersten Zeiten unseres Vaterlandes besond作者: 有組織 時間: 2025-3-28 08:29 作者: 雜役 時間: 2025-3-28 10:42 作者: MORT 時間: 2025-3-28 18:35
Nektarios Vlahakis?lt zu haben, für die die Bezeichnung Geschwulst (Tumor, Blastom) Geltung haben soll. Hierbei stellte Virchow als wesentlich hin, da? die Geschwülste Gewebsneubildungen sind. Das ?u?erliche Merkmal einer umschriebenen Anschwellung ist nicht ausschlaggebend, da es auch durch Exsudat und Transsudat he作者: Corroborate 時間: 2025-3-28 21:36
C. Sauty,Z. Meliani,E. Trussoni,K. Tsinganosontanblutung im Gehirn. Au?en sieht man, abgesehen von Zeichen des Hirndrucks, dem Gehirn h?ufig nichts an, oder wie in dem Falle, der mir vorliegt, erkennt man schon die weichen Hirnh?ute auf eine erhebliche Strecke des Kleinhirns blutig unterlaufen. Dies rührt nicht etwa von einer oberfl?chlichen 作者: 技術(shù) 時間: 2025-3-29 01:21
Jonathan Ferreirastütze wird in den K?rper eingeführt oder verl?uft am Rücken entlang bis in H?he der Brust. Am oberen Ende wird ein der Rückenform entsprechender Bügel montiert, welcher bis in die vorderen seitlichen Brustpartien reicht und so dem K?rper den n?tigen Halt gibt. Die Fü?e werden mit Holzleisten umgebe作者: 惡意 時間: 2025-3-29 06:03 作者: Coronary-Spasm 時間: 2025-3-29 08:09
Serguei Komissarov,Yuri Lyubarskys of .. Where the scalpel indicates the pervasiveness of the desire to be incisive, on the body and in the formation of knowledge, the mirror indicates our desire to know ourselves, to be self-reflexive, to have a coherent idea of our own identity. Thus the scalpel and the mirror appear to be very d作者: pulmonary 時間: 2025-3-29 13:19
ensing Examination. OKN: Anatomy takes a unified approach to the subject, covering Embryology, Neuroanatomy, Histology, and Gross Anatomy. Like other Oklahoma Notes, Anatomy contains self-assessment questions, geared to the current USMLE format; tables and figures to promote rapid self-assessment an作者: Adulate 時間: 2025-3-29 17:04 作者: hypnotic 時間: 2025-3-29 22:40
Hubert Baty,Rony Keppens,Pierre Comtemark in the history of neurosurgery. His concentrated work, and also that of his colleague Walter Dandy, originated with the desires of both pioneers to understand surgical anatomy and neurophysiology. The fundamental knowledge and surgical techni- ques that they provided became the standard of exce作者: 任命 時間: 2025-3-30 00:21
J.-M. Martí,M. Perucho,M. Hanasz above to the sternal notch below; behind, by the anterior border of the sternocleidomastoid; above, by the lower border of the mandible and a line drawn backward from its angle to the posterior boundary. This triangle is subdivided into 3 subsidiary triangles by the anterior and the posterior belli作者: 無法解釋 時間: 2025-3-30 08:05 作者: 灰姑娘 時間: 2025-3-30 08:44 作者: Cumulus 時間: 2025-3-30 15:01 作者: 缺乏 時間: 2025-3-30 19:38
Paola Rossi,Gianluigi Bodo,Silvano Massaglia,Attilio Ferrari,Andrea MignoneT. A. S. led to the overthrow of the Tunisian and Egyptian presidents—reached Syria on March 15, 2011. Young men and women descended on public squares in major Syrian cities demanding a political order that treats them with dignity. Within weeks, the peaceful protests turned into an armed uprising.作者: jealousy 時間: 2025-3-30 23:57 作者: gimmick 時間: 2025-3-31 01:35
https://doi.org/10.1007/978-1-4020-2664-5Accretion; Galaxy; astrophysics; relativistic jet; star; stellar作者: 入會 時間: 2025-3-31 08:06
Observational Properties of Jets in Active Galactic NucleiParsec scale jet properties are shortly presented and discussed. Observational data are used to derive constraints on the jet velocity and orientation, the presence of velocity structures, and the connection between the pc and kpc scale. Two peculiar sources with limb-brightened jets: 1144+35 and Mkn 501 are discussed in detail.作者: Delude 時間: 2025-3-31 11:20 作者: 小卷發(fā) 時間: 2025-3-31 17:13 作者: 我們的面粉 時間: 2025-3-31 20:22
Stability of Relativistic Hydrodynamical Planar Jets: Linear and Nonlinear Evolution of Kelvin-HelmhSome aspects about the stability of relativistic flows against Kelvin-Helmholtz (KH) perturbations are studied by means of relativistic, hydrodynamical simulations. In particular, we analyze the transition to the fully nonlinear regime and the long-term evolution of two jet models with different specific internal energies.作者: 攀登 時間: 2025-4-1 01:44
