Reconnaissance of the HR 8799 Exosolar System II: Astrometry and Orbital Motion [PDF]
We present an analysis of the orbital motion of the four sub-stellar objects orbiting HR8799. Our study relies on the published astrometric history of this system augmented with an epoch obtained with the Project 1640 coronagraph + Integral Field ...
Baranec, C. +32 more
core +5 more sources
New integral transform: Shehu transform a generalization of Sumudu and Laplace transform for solving differential equations [PDF]
In this paper, we introduce a Laplace-type integral transform called the Shehu transform which is a generalization of the Laplace and the Sumudu integral transforms for solving differential equations in the time domain. The proposed integral transform is
Maitama, Shehu, Zhao, Weidong
core +3 more sources
Dynamical Viscosity of Nucleating Bubbles [PDF]
We study the viscosity corrections to the growth rate of nucleating bubbles in a first order phase transition in scalar field theory. We obtain the non-equilibrium equation of motion of the coordinate that describes small departures from the critical ...
A. D. Linde +99 more
core +2 more sources
A Versatile Stochastic Duel Game
This paper deals with a standard stochastic game model with a continuum of states under the duel-type setup. It newly proposes a hybrid model of game theory and the fluctuation process, which could be applied for various practical decision making ...
Kim, Song-Kyoo
core +1 more source
Direct estimation of kinetic parametric images for dynamic PET. [PDF]
Dynamic positron emission tomography (PET) can monitor spatiotemporal distribution of radiotracer in vivo. The spatiotemporal information can be used to estimate parametric images of radiotracer kinetics that are of physiological and biochemical ...
Qi, Jinyi, Wang, Guobao
core +1 more source
Certain theorems on two dimensional Laplace transform and non-homogeneous parabolic partial differential equations [PDF]
In this work,we present new theorems on two-dimensional Laplace transformation. We also develop some applications based on these results. The two-dimensional Laplace transformation is useful in the solution of non-homogeneous partial differential ...
A. Aghili , B. Parsa Moghaddam
doaj
The interaction energy of well-separated Skyrme solitons [PDF]
We prove that the asymptotic field of a Skyrme soliton of any degree has a non-trivial multipole expansion. It follows that every Skyrme soliton has a well-defined leading multipole moment.
Manton, N. S. +2 more
core +2 more sources
Investigation of the effect of aggregates' morphology on concrete creep properties by numerical simulations [PDF]
International audiencePrestress losses due to creep of concrete is a matter of interest for long-term operations of nuclear power plants containment buildings.
Bornert, Michel +4 more
core +4 more sources
Estimation of creep strain and creep failure of a glass reinforced plastic by semi-analytical methods and 3D numerical simulations [PDF]
International audienceGlass reinforced plastics based on polyvinyl chloride (PVC) is a material of choice for construction applications, such as pipes.
Bornert, Michel +4 more
core +4 more sources
Radial vibrations of BPS skyrmions [PDF]
We study radial vibrations of spherically symmetric skyrmions in the BPS Skyrme model. Concretely, we numerically solve the linearised field equations for small fluctuations in a skyrmion background, both for linearly stable oscillations and for ...
Adam, C. +3 more
core +2 more sources

