نتایج جستجو برای: dem sph coupling
تعداد نتایج: 175330 فیلتر نتایج به سال:
We analyse the bulge/spheroid size-(stellar mass), $R_{\rm e,Sph}-M_{\rm *,Sph}$, relation and spheroid structural parameters for 202 local (predominantly $\lesssim 110~\rm Mpc$) galaxies spanning $ M_*\sim 3\times10^{9}-10^{12}~\rm M_{\odot}$ 0.1 \lesssim R_{\rm e, Sph}\lesssim32~\rm kpc$ from multicomponent decomposition. The correlations between S\'ersic index ($n_{\rm Sph}$), central surfac...
We report the influence of the strength of heat bath coupling on the demixing behavior in spinodal decomposing one component liquid-vapor systems. The smoothed particle hydrodynamics (SPH) method with a van der Waals equation of state is used for the simulation. A thermostat for SPH is introduced that is based on the Berendsen thermostat. It controls the strength of heat bath coupling and allow...
We have performed Smoothed Particle Hydrodynamic (SPH) simulations to study the response of molecular clouds in the Galactic disk to a rotating bar and their subsequent evolution in the Galactic Center (GC) region. The Galactic potential in our models is contributed by three axisymmetric components (massive halo, exponential disk, compact bulge) and a non-axisymmetric bar. These components are ...
BACKGROUND To assess correlation between liver or spleen stiffness measurement by transient elastography (TE) and hepatic venous pressure gradient (HVPG) in patients with chronic liver disease as well find optimal and rule in/rule out cut-offs for prognosis of clinically significant (CSPH) and severe (SPH) portal hypertension. METHODS In this prospective study patients with different chronic ...
To tackle the difficulty in obtaining response data of chain and bulk coal under faults, this paper uses a new method for fault simulation scraper chains based on coupling multi-body dynamics (MBD), discrete element (DEM), finite (FEM). With force stacking angle as values, contact parameters were revised using rotary transport test. The simplified DEM-MBD model was verified from resistance poin...
Sphere organelles are nuclear structures in amphibian oocytes that are easily visible by light microscopy. These structures are up to 10 microns in diameter and have been described morphologically for decades, yet their function remains obscure. The present study defines a protein component of the sphere organelle, named SPH-1, which is recognized by a mAb raised against purified Xenopus laevis...
In the yeast Saccharomyces cerevisiae, sphingolipids are essential for cell growth. Inactivation of sphingolipid biosynthesis, such as by disrupting the serine palmitoyltransferase gene (LCB2), is lethal, but cells can be rescued by supplying an exogenous LCB (long-chain base) like PHS (phytosphingosine) or DHS (dihydrosphingosine). In the present study, supplying SPH (sphingosine), an unnatura...
هیدرودینامیک ذرات هموار روشی برای بدست آوردن جوابهای عددی معادلات حاکم بر سیال می باشد که در آن یک دستگاه ذرات هموار شده را جانشین سیال می کنیم. در sph، ذرات همانند ذرات واقعی سیستم رفتار می کنند و اگر انواع ذرات داشته باشیم هر یک توسط دستگاه مخصوص خودش توضیح داده می شوند. در این حالت، وجه اشتراک بین دستگاهها در sph ناچیز می باشد. این روش شبیه سازی نخستین بار توسط لوسی (1977)، گینگلد و موناقان ...
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