Abstract In this paper, we report the effect of exponential and power-law dark matter density profiles near Galactic Center black hole on relative scalaron field amplitude , ψ 0 / ϕ ( being Newtonian potential amplitude), f(R) gravity theory. Constraints derived earlier basis orbital motion S-2 star are used in conjunction with scalarons having a mass range 10 −22 –10 −16 eV to investigate depe...

The reconstruction of plasma parameters in the interplanetary medium is very important to understand propagation solar eruptions and for Space Weather application purposes. Because only a few spacecraft are measuring situ these parameters, reconstructions currently performed by running complex numerical Magneto-hydrodynamic (MHD) simulations starting from remote sensing observations Sun. Curren...

We perform a sparse identification of nonlinear dynamics (SINDy) for low-dimensionalized complex flow phenomena. first apply the SINDy with two regression methods, thresholded least square algorithm and adaptive absolute shrinkage selection operator which show reasonable ability wide range sparsity constant in our preliminary tests, to two-dimensional single cylinder wake at $Re_D=100$ , its tr...

ABSTRACT Expansion of (sub)millimetre capabilities to high angular resolution offered with interferometers allows resolve giant molecular clouds (GMCs) in nearby galaxies. This enables us place the Milky Way context other galaxies advance our understanding star formation own Galaxy. We, thus, remap 12CO (1–0) data along Perseus spiral arm outer a fixed physical and present first cube at common ...

The field of mobile robotics has seen significant growth regarding the use indoor laser mapping technology, but most two-dimensional Light Detection and Ranging (2D LiDAR) can only scan a plane fixed height, it is difficult to obtain information objects below so inaccurate environmental navigation mis-collision problems easily occur. Although three-dimensional (3D) LiDAR also gradually applied,...

The visualization of synthetic aperture radar (SAR) images involves the mapping high dynamic range (HDR) amplitude values to gray levels for lower (LDR) display devices. This compression process determines visibility details in displayed result. It therefore plays a critical role remote sensing applications. There are some problems with existing methods, such as poor adaptability, detail loss, ...