ABSTRACT We use H i absorption along the lines-of-sight to Q0107 quasar triplet in order model potential disc and outflow structures circumgalactic medium of intervening galaxies at z ? 1, as well intergalactic on scales up a few virial radii. consider sample twelve isolated field with position angles inclinations measured from HST imaging redshifts our spectroscopic surveys, alongside 27 detec...

In the era of precision cosmology and ever-improving cosmological simulations, a better understanding different galaxy components such as bulges discs will give us new insight into galactic formation evolution. Based on fact that stellar populations constituent galaxies differ by their dynamical properties, we develop two simple models for decomposition using IllustrisTNG hydrodynamical simulat...

니켈, 코발트 및 구리 전해채취의 반응율속단계 규명을 위해 회전원판전극(rotating disc electrode, RDE)를 사용하여 전해액 온도 교반속도에 대한 실험을 수행하였다. 유가금속 별 전해채취 공정에서의 활성화에너지를 구하여 반응율속단계를 규명한 결과 니켈은 혼합율속, 코발트는 화학반응율속, 구리는 물질전달율속으로 판단되었다. 구리의 교반속도 변화에 따른 공정을 수행하여 전류효율을 비교한 결과와 일치하였다.

We systematically explore the evolution of the merger of two carbon-oxygen (CO) white dwarfs. The dynamical evolution of a 0.9 M⊙ + 0.6 M⊙ CO white dwarf merger is followed by a three-dimensional SPH simulation. The calculation uses a state-of-the art equation of state that is coupled to an efficient nuclear reaction network that accurately approximates all stages from helium burning up to nucl...

ABSTRACT Non-ideal magnetohydrodynamic (MHD) processes – namely Ohmic resistivity, ambipolar diffusion, and the Hall effect modify early stages of star formation process surrounding environment. Collectively, they have been shown to promote disc or hinder outflows. But which non-ideal has greatest impact? Using three-dimensional smoothed particle radiation MHD simulations, we model gravitationa...

Computers have added many new possibilities to the tool box used for visualizing science in general and relativity in particular. We present some new results from our own work: (2 + 1) dimensional Minkowski diagrams showing two spatial dimensions, extended wormhole visualization, and the illustration of accretion discs by using the approximation via a rigidly rotating disc of dust. We also disc...

this study was conducted to determine the use of three-dimensional ultrasonography (3du) in ocular imaging of the dog and measuring of its optical axis. 12 healthy mixed-breed dogs including 6 males and 6 females were studied. 3du of the eyes were done using a 5–12 mhz linear trapezoid transducer. 3du of the eyes were evaluated and the normal optical long axis through a line between the cornea ...