Revisiting the nonsingular black holes in the 4-dimensional regularized Lovelock gravityThe European Physical Journal Plus - Tập 137 - Trang 1-11 - 2022
S. Habib Mazharimousavi
Static, spherically symmetric nonsingular/regular black holes in the vacuum 4-dimensional Lovelock gravity are revisited. We follow the footsteps of Changjun Gao et al in their recent work (Gao et al. in Phys Dark Univ 31:100754, 2021) where they introduced nonsingular black holes in regularized Lovelock gravity and studied their physical properties. In addition to what already has been done, we i...... hiện toàn bộ
Travelling waves and instability in a Fisher–KPP problem with a nonlinear advection and a high-order diffusionThe European Physical Journal Plus - Tập 136 - Trang 1-18 - 2021
José Luis Díaz Palencia
The instability of travelling waves (TW) in high-order operators has been a source of investigation in the last years. Instability shall be understood as the existence of oscillatory exponential bundles of solutions. One of the principal topics to explore is related with the characterization of the mentioned instability phenomena in the proximity of the stationary solutions given by KPP-Fisher ter...... hiện toàn bộ
Effect of impact force for dual-hose dry blasting nozzle geometry for various pressure and distance: an experimental workThe European Physical Journal Plus - Tập 135 - Trang 1-11 - 2020
Mohamad Nur Hidayat Mat, Nor Zelawati Asmuin, Md. Faisal Md. Basir, Marjan Goodarzi, Nor Halim Hasan
Dry ice blasting plays an essential role in today’s cleaning industry, where many industry players have used it after realizing its advantages. The disadvantage of dry ice blasting is relatively small kinetic energy and offer less aggressive clean effect, especially for dual-hose nozzle geometry. This project was mainly to study the impact force of nozzle geometry of dry ice blasting concerning pr...... hiện toàn bộ
Simple synthesis, structural and optical properties of cobalt ferrite nanoparticlesThe European Physical Journal Plus - Tập 134 - Trang 1-10 - 2019
A. V. Ravindra, M. Chandrika, Ch. Rajesh, Pratap Kollu, Shaohua Ju, S. D. Ramarao
Cobalt ferrite (CoFe2O4) nanoparticles have been successfully synthesised by simple and economic co-precipitation method at 90 °C for 2h using a biodegradable surfactant (starch), and by annealing at 500 °C for 1, 2, and 6h. The XRD patterns reveal spinel CoFe2O4 phase for as-synthesized and annealed samples without any impurity phase. FTIR spectra also demonstrate the characteristic absorption ba...... hiện toàn bộ
Parametrization of cross sections for elementary hadronic collisions involving strange particlesThe European Physical Journal Plus - Tập 133 - Trang 1-34 - 2018
J. Hirtz, J. -C. David, A. Boudard, J. Cugnon, S. Leray, I. Leya, D. Mancusi
The production of strange particles (kaons, hyperons) and hypernuclei in light charged-particle-induced reactions in the energy range of a few GeV (2-15 GeV) has become a topic of active research in several facilities (e.g., HypHI and PANDA at GSI and/or FAIR (Germany), JLab (USA), and JPARC (Japan)). This energy range represents the low-energy limit of the string models (degree of freedom: quark ...... hiện toàn bộ